/* tc-i370.c -- Assembler for the IBM 360/370/390 instruction set.
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/* tc-i370.c -- Assembler for the IBM 360/370/390 instruction set.
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Loosely based on the ppc files by Linas Vepstas <linas@linas.org> 1998, 99
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Loosely based on the ppc files by Linas Vepstas <linas@linas.org> 1998, 99
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Copyright 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003,
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Copyright 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003,
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2004, 2005, 2006, 2007 Free Software Foundation, Inc.
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2004, 2005, 2006, 2007 Free Software Foundation, Inc.
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Written by Ian Lance Taylor, Cygnus Support.
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Written by Ian Lance Taylor, Cygnus Support.
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This file is part of GAS, the GNU Assembler.
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This file is part of GAS, the GNU Assembler.
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GAS is free software; you can redistribute it and/or modify
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GAS is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3, or (at your option)
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the Free Software Foundation; either version 3, or (at your option)
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any later version.
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any later version.
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GAS is distributed in the hope that it will be useful,
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GAS is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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You should have received a copy of the GNU General Public License
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along with GAS; see the file COPYING. If not, write to the Free
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along with GAS; see the file COPYING. If not, write to the Free
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Software Foundation, 51 Franklin Street - Fifth Floor, Boston, MA
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Software Foundation, 51 Franklin Street - Fifth Floor, Boston, MA
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02110-1301, USA. */
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02110-1301, USA. */
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/* This assembler implements a very hacked version of an elf-like thing
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/* This assembler implements a very hacked version of an elf-like thing
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that gcc emits (when gcc is suitably hacked). To make it behave more
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that gcc emits (when gcc is suitably hacked). To make it behave more
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HLASM-like, try turning on the -M or --mri flag (as there are various
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HLASM-like, try turning on the -M or --mri flag (as there are various
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similarities between HLASM and the MRI assemblers, such as section
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similarities between HLASM and the MRI assemblers, such as section
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names, lack of leading . in pseudo-ops, DC and DS, etc. */
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names, lack of leading . in pseudo-ops, DC and DS, etc. */
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#include "as.h"
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#include "as.h"
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#include "safe-ctype.h"
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#include "safe-ctype.h"
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#include "subsegs.h"
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#include "subsegs.h"
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#include "struc-symbol.h"
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#include "struc-symbol.h"
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#include "opcode/i370.h"
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#include "opcode/i370.h"
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#ifdef OBJ_ELF
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#ifdef OBJ_ELF
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#include "elf/i370.h"
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#include "elf/i370.h"
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#endif
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#endif
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/* This is the assembler for the System/390 Architecture. */
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/* This is the assembler for the System/390 Architecture. */
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/* Tell the main code what the endianness is. */
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/* Tell the main code what the endianness is. */
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extern int target_big_endian;
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extern int target_big_endian;
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/* Generic assembler global variables which must be defined by all
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/* Generic assembler global variables which must be defined by all
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targets. */
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targets. */
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#ifdef OBJ_ELF
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#ifdef OBJ_ELF
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/* This string holds the chars that always start a comment. If the
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/* This string holds the chars that always start a comment. If the
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pre-processor is disabled, these aren't very useful. The macro
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pre-processor is disabled, these aren't very useful. The macro
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tc_comment_chars points to this. We use this, rather than the
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tc_comment_chars points to this. We use this, rather than the
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usual comment_chars, so that we can switch for Solaris conventions. */
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usual comment_chars, so that we can switch for Solaris conventions. */
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static const char i370_eabi_comment_chars[] = "#";
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static const char i370_eabi_comment_chars[] = "#";
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const char *i370_comment_chars = i370_eabi_comment_chars;
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const char *i370_comment_chars = i370_eabi_comment_chars;
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#else
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#else
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const char comment_chars[] = "#";
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const char comment_chars[] = "#";
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#endif
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#endif
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/* Characters which start a comment at the beginning of a line. */
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/* Characters which start a comment at the beginning of a line. */
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const char line_comment_chars[] = "#*";
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const char line_comment_chars[] = "#*";
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/* Characters which may be used to separate multiple commands on a
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/* Characters which may be used to separate multiple commands on a
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single line. */
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single line. */
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const char line_separator_chars[] = ";";
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const char line_separator_chars[] = ";";
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/* Characters which are used to indicate an exponent in a floating
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/* Characters which are used to indicate an exponent in a floating
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point number. */
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point number. */
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const char EXP_CHARS[] = "eE";
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const char EXP_CHARS[] = "eE";
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/* Characters which mean that a number is a floating point constant,
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/* Characters which mean that a number is a floating point constant,
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as in 0d1.0. */
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as in 0d1.0. */
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const char FLT_CHARS[] = "dD";
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const char FLT_CHARS[] = "dD";
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void
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void
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md_show_usage (FILE *stream)
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md_show_usage (FILE *stream)
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{
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{
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fprintf (stream, "\
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fprintf (stream, "\
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S/370 options: (these have not yet been tested and may not work) \n\
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S/370 options: (these have not yet been tested and may not work) \n\
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-u ignored\n\
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-u ignored\n\
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-mregnames Allow symbolic names for registers\n\
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-mregnames Allow symbolic names for registers\n\
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-mno-regnames Do not allow symbolic names for registers\n");
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-mno-regnames Do not allow symbolic names for registers\n");
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#ifdef OBJ_ELF
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#ifdef OBJ_ELF
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fprintf (stream, "\
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fprintf (stream, "\
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-mrelocatable support for GCC's -mrelocatble option\n\
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-mrelocatable support for GCC's -mrelocatble option\n\
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-mrelocatable-lib support for GCC's -mrelocatble-lib option\n\
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-mrelocatable-lib support for GCC's -mrelocatble-lib option\n\
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-V print assembler version number\n");
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-V print assembler version number\n");
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#endif
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#endif
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}
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}
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/* Whether to use user friendly register names. */
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/* Whether to use user friendly register names. */
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#define TARGET_REG_NAMES_P TRUE
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#define TARGET_REG_NAMES_P TRUE
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static bfd_boolean reg_names_p = TARGET_REG_NAMES_P;
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static bfd_boolean reg_names_p = TARGET_REG_NAMES_P;
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/* Predefined register names if -mregnames
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/* Predefined register names if -mregnames
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In general, there are lots of them, in an attempt to be compatible
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In general, there are lots of them, in an attempt to be compatible
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with a number of assemblers. */
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with a number of assemblers. */
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/* Structure to hold information about predefined registers. */
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/* Structure to hold information about predefined registers. */
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struct pd_reg
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struct pd_reg
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{
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{
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char *name;
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char *name;
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int value;
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int value;
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};
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};
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/* List of registers that are pre-defined:
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/* List of registers that are pre-defined:
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Each general register has predefined names of the form:
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Each general register has predefined names of the form:
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1. r<reg_num> which has the value <reg_num>.
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1. r<reg_num> which has the value <reg_num>.
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2. r.<reg_num> which has the value <reg_num>.
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2. r.<reg_num> which has the value <reg_num>.
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Each floating point register has predefined names of the form:
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Each floating point register has predefined names of the form:
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1. f<reg_num> which has the value <reg_num>.
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1. f<reg_num> which has the value <reg_num>.
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2. f.<reg_num> which has the value <reg_num>.
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2. f.<reg_num> which has the value <reg_num>.
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There are only four floating point registers, and these are
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There are only four floating point registers, and these are
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commonly labelled 0,2,4 and 6. Thus, there is no f1, f3, etc.
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commonly labelled 0,2,4 and 6. Thus, there is no f1, f3, etc.
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There are individual registers as well:
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There are individual registers as well:
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rbase or r.base has the value 3 (base register)
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rbase or r.base has the value 3 (base register)
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rpgt or r.pgt has the value 4 (page origin table pointer)
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rpgt or r.pgt has the value 4 (page origin table pointer)
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rarg or r.arg has the value 11 (argument pointer)
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rarg or r.arg has the value 11 (argument pointer)
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rtca or r.tca has the value 12 (table of contents pointer)
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rtca or r.tca has the value 12 (table of contents pointer)
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rtoc or r.toc has the value 12 (table of contents pointer)
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rtoc or r.toc has the value 12 (table of contents pointer)
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sp or r.sp has the value 13 (stack pointer)
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sp or r.sp has the value 13 (stack pointer)
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dsa or r.dsa has the value 13 (stack pointer)
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dsa or r.dsa has the value 13 (stack pointer)
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lr has the value 14 (link reg)
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lr has the value 14 (link reg)
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The table is sorted. Suitable for searching by a binary search. */
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The table is sorted. Suitable for searching by a binary search. */
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static const struct pd_reg pre_defined_registers[] =
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static const struct pd_reg pre_defined_registers[] =
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{
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{
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{ "arg", 11 }, /* Argument Pointer. */
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{ "arg", 11 }, /* Argument Pointer. */
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{ "base", 3 }, /* Base Reg. */
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{ "base", 3 }, /* Base Reg. */
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{ "f.0", 0 }, /* Floating point registers. */
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{ "f.0", 0 }, /* Floating point registers. */
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{ "f.2", 2 },
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{ "f.2", 2 },
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{ "f.4", 4 },
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{ "f.4", 4 },
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{ "f.6", 6 },
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{ "f.6", 6 },
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{ "f0", 0 },
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{ "f0", 0 },
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{ "f2", 2 },
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{ "f2", 2 },
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{ "f4", 4 },
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{ "f4", 4 },
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{ "f6", 6 },
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{ "f6", 6 },
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{ "dsa",13 }, /* Stack pointer. */
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{ "dsa",13 }, /* Stack pointer. */
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{ "lr", 14 }, /* Link Register. */
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{ "lr", 14 }, /* Link Register. */
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{ "pgt", 4 }, /* Page Origin Table Pointer. */
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{ "pgt", 4 }, /* Page Origin Table Pointer. */
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{ "r.0", 0 }, /* General Purpose Registers. */
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{ "r.0", 0 }, /* General Purpose Registers. */
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{ "r.1", 1 },
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{ "r.1", 1 },
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{ "r.10", 10 },
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{ "r.10", 10 },
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{ "r.11", 11 },
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{ "r.11", 11 },
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{ "r.12", 12 },
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{ "r.12", 12 },
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{ "r.13", 13 },
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{ "r.13", 13 },
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{ "r.14", 14 },
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{ "r.14", 14 },
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{ "r.15", 15 },
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{ "r.15", 15 },
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{ "r.2", 2 },
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{ "r.2", 2 },
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{ "r.3", 3 },
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{ "r.3", 3 },
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{ "r.4", 4 },
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{ "r.4", 4 },
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{ "r.5", 5 },
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{ "r.5", 5 },
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{ "r.6", 6 },
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{ "r.6", 6 },
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{ "r.7", 7 },
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{ "r.7", 7 },
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{ "r.8", 8 },
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{ "r.8", 8 },
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{ "r.9", 9 },
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{ "r.9", 9 },
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{ "r.arg", 11 }, /* Argument Pointer. */
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{ "r.arg", 11 }, /* Argument Pointer. */
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{ "r.base", 3 }, /* Base Reg. */
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{ "r.base", 3 }, /* Base Reg. */
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{ "r.dsa", 13 }, /* Stack Pointer. */
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{ "r.dsa", 13 }, /* Stack Pointer. */
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{ "r.pgt", 4 }, /* Page Origin Table Pointer. */
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{ "r.pgt", 4 }, /* Page Origin Table Pointer. */
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{ "r.sp", 13 }, /* Stack Pointer. */
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{ "r.sp", 13 }, /* Stack Pointer. */
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|
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{ "r.tca", 12 }, /* Pointer to the table of contents. */
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{ "r.tca", 12 }, /* Pointer to the table of contents. */
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{ "r.toc", 12 }, /* Pointer to the table of contents. */
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{ "r.toc", 12 }, /* Pointer to the table of contents. */
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|
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{ "r0", 0 }, /* More general purpose registers. */
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{ "r0", 0 }, /* More general purpose registers. */
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{ "r1", 1 },
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{ "r1", 1 },
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{ "r10", 10 },
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{ "r10", 10 },
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{ "r11", 11 },
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{ "r11", 11 },
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{ "r12", 12 },
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{ "r12", 12 },
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{ "r13", 13 },
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{ "r13", 13 },
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{ "r14", 14 },
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{ "r14", 14 },
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{ "r15", 15 },
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{ "r15", 15 },
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{ "r2", 2 },
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{ "r2", 2 },
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{ "r3", 3 },
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{ "r3", 3 },
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{ "r4", 4 },
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{ "r4", 4 },
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{ "r5", 5 },
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{ "r5", 5 },
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{ "r6", 6 },
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{ "r6", 6 },
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{ "r7", 7 },
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{ "r7", 7 },
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{ "r8", 8 },
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{ "r8", 8 },
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{ "r9", 9 },
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{ "r9", 9 },
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|
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{ "rbase", 3 }, /* Base Reg. */
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{ "rbase", 3 }, /* Base Reg. */
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|
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{ "rtca", 12 }, /* Pointer to the table of contents. */
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{ "rtca", 12 }, /* Pointer to the table of contents. */
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{ "rtoc", 12 }, /* Pointer to the table of contents. */
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{ "rtoc", 12 }, /* Pointer to the table of contents. */
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|
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{ "sp", 13 }, /* Stack Pointer. */
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{ "sp", 13 }, /* Stack Pointer. */
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|
|
};
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};
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|
|
#define REG_NAME_CNT (sizeof (pre_defined_registers) / sizeof (struct pd_reg))
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#define REG_NAME_CNT (sizeof (pre_defined_registers) / sizeof (struct pd_reg))
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|
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/* Given NAME, find the register number associated with that name, return
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/* Given NAME, find the register number associated with that name, return
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the integer value associated with the given name or -1 on failure. */
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the integer value associated with the given name or -1 on failure. */
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static int
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static int
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reg_name_search (const struct pd_reg *regs,
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reg_name_search (const struct pd_reg *regs,
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int regcount,
|
int regcount,
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const char *name)
|
const char *name)
|
{
|
{
|
int middle, low, high;
|
int middle, low, high;
|
int cmp;
|
int cmp;
|
|
|
low = 0;
|
low = 0;
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high = regcount - 1;
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high = regcount - 1;
|
|
|
do
|
do
|
{
|
{
|
middle = (low + high) / 2;
|
middle = (low + high) / 2;
|
cmp = strcasecmp (name, regs[middle].name);
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cmp = strcasecmp (name, regs[middle].name);
|
if (cmp < 0)
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if (cmp < 0)
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high = middle - 1;
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high = middle - 1;
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else if (cmp > 0)
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else if (cmp > 0)
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low = middle + 1;
|
low = middle + 1;
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else
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else
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return regs[middle].value;
|
return regs[middle].value;
|
}
|
}
|
while (low <= high);
|
while (low <= high);
|
|
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return -1;
|
return -1;
|
}
|
}
|
|
|
/* Summary of register_name().
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/* Summary of register_name().
|
|
|
in: Input_line_pointer points to 1st char of operand.
|
in: Input_line_pointer points to 1st char of operand.
|
|
|
out: An expressionS.
|
out: An expressionS.
|
The operand may have been a register: in this case, X_op == O_register,
|
The operand may have been a register: in this case, X_op == O_register,
|
X_add_number is set to the register number, and truth is returned.
|
X_add_number is set to the register number, and truth is returned.
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Input_line_pointer->(next non-blank) char after operand, or is in its
|
Input_line_pointer->(next non-blank) char after operand, or is in its
|
original state. */
|
original state. */
|
|
|
static bfd_boolean
|
static bfd_boolean
|
register_name (expressionS *expressionP)
|
register_name (expressionS *expressionP)
|
{
|
{
|
int reg_number;
|
int reg_number;
|
char *name;
|
char *name;
|
char *start;
|
char *start;
|
char c;
|
char c;
|
|
|
/* Find the spelling of the operand. */
|
/* Find the spelling of the operand. */
|
start = name = input_line_pointer;
|
start = name = input_line_pointer;
|
if (name[0] == '%' && ISALPHA (name[1]))
|
if (name[0] == '%' && ISALPHA (name[1]))
|
name = ++input_line_pointer;
|
name = ++input_line_pointer;
|
|
|
else if (!reg_names_p)
|
else if (!reg_names_p)
|
return FALSE;
|
return FALSE;
|
|
|
while (' ' == *name)
|
while (' ' == *name)
|
name = ++input_line_pointer;
|
name = ++input_line_pointer;
|
|
|
/* If it's a number, treat it as a number. If it's alpha, look to
|
/* If it's a number, treat it as a number. If it's alpha, look to
|
see if it's in the register table. */
|
see if it's in the register table. */
|
if (!ISALPHA (name[0]))
|
if (!ISALPHA (name[0]))
|
reg_number = get_single_number ();
|
reg_number = get_single_number ();
|
else
|
else
|
{
|
{
|
c = get_symbol_end ();
|
c = get_symbol_end ();
|
reg_number = reg_name_search (pre_defined_registers, REG_NAME_CNT, name);
|
reg_number = reg_name_search (pre_defined_registers, REG_NAME_CNT, name);
|
|
|
/* Put back the delimiting char. */
|
/* Put back the delimiting char. */
|
*input_line_pointer = c;
|
*input_line_pointer = c;
|
}
|
}
|
|
|
/* If numeric, make sure its not out of bounds. */
|
/* If numeric, make sure its not out of bounds. */
|
if ((0 <= reg_number) && (16 >= reg_number))
|
if ((0 <= reg_number) && (16 >= reg_number))
|
{
|
{
|
expressionP->X_op = O_register;
|
expressionP->X_op = O_register;
|
expressionP->X_add_number = reg_number;
|
expressionP->X_add_number = reg_number;
|
|
|
/* Make the rest nice. */
|
/* Make the rest nice. */
|
expressionP->X_add_symbol = NULL;
|
expressionP->X_add_symbol = NULL;
|
expressionP->X_op_symbol = NULL;
|
expressionP->X_op_symbol = NULL;
|
return TRUE;
|
return TRUE;
|
}
|
}
|
|
|
/* Reset the line as if we had not done anything. */
|
/* Reset the line as if we had not done anything. */
|
input_line_pointer = start;
|
input_line_pointer = start;
|
return FALSE;
|
return FALSE;
|
}
|
}
|
|
|
/* Local variables. */
|
/* Local variables. */
|
|
|
/* The type of processor we are assembling for. This is one or more
|
/* The type of processor we are assembling for. This is one or more
|
of the I370_OPCODE flags defined in opcode/i370.h. */
|
of the I370_OPCODE flags defined in opcode/i370.h. */
|
static int i370_cpu = 0;
|
static int i370_cpu = 0;
|
|
|
/* The base register to use for opcode with optional operands.
|
/* The base register to use for opcode with optional operands.
|
We define two of these: "text" and "other". Normally, "text"
|
We define two of these: "text" and "other". Normally, "text"
|
would get used in the .text section for branches, while "other"
|
would get used in the .text section for branches, while "other"
|
gets used in the .data section for address constants.
|
gets used in the .data section for address constants.
|
|
|
The idea of a second base register in a different section
|
The idea of a second base register in a different section
|
is foreign to the usual HLASM-style semantics; however, it
|
is foreign to the usual HLASM-style semantics; however, it
|
allows us to provide support for dynamically loaded libraries,
|
allows us to provide support for dynamically loaded libraries,
|
by allowing us to place address constants in a section other
|
by allowing us to place address constants in a section other
|
than the text section. The "other" section need not be the
|
than the text section. The "other" section need not be the
|
.data section, it can be any section that isn't the .text section.
|
.data section, it can be any section that isn't the .text section.
|
|
|
Note that HLASM defines a multiple, concurrent .using semantic
|
Note that HLASM defines a multiple, concurrent .using semantic
|
that we do not: in calculating offsets, it uses either the most
|
that we do not: in calculating offsets, it uses either the most
|
recent .using directive, or the one with the smallest displacement.
|
recent .using directive, or the one with the smallest displacement.
|
This allows HLASM to support a quasi-block-scope-like behaviour.
|
This allows HLASM to support a quasi-block-scope-like behaviour.
|
Handy for people writing assembly by hand ... but not supported
|
Handy for people writing assembly by hand ... but not supported
|
by us. */
|
by us. */
|
static int i370_using_text_regno = -1;
|
static int i370_using_text_regno = -1;
|
static int i370_using_other_regno = -1;
|
static int i370_using_other_regno = -1;
|
|
|
/* The base address for address literals. */
|
/* The base address for address literals. */
|
static expressionS i370_using_text_baseaddr;
|
static expressionS i370_using_text_baseaddr;
|
static expressionS i370_using_other_baseaddr;
|
static expressionS i370_using_other_baseaddr;
|
|
|
/* the "other" section, used only for syntax error detection. */
|
/* the "other" section, used only for syntax error detection. */
|
static segT i370_other_section = undefined_section;
|
static segT i370_other_section = undefined_section;
|
|
|
/* Opcode hash table. */
|
/* Opcode hash table. */
|
static struct hash_control *i370_hash;
|
static struct hash_control *i370_hash;
|
|
|
/* Macro hash table. */
|
/* Macro hash table. */
|
static struct hash_control *i370_macro_hash;
|
static struct hash_control *i370_macro_hash;
|
|
|
#ifdef OBJ_ELF
|
#ifdef OBJ_ELF
|
/* What type of shared library support to use. */
|
/* What type of shared library support to use. */
|
static enum { SHLIB_NONE, SHLIB_PIC, SHILB_MRELOCATABLE } shlib = SHLIB_NONE;
|
static enum { SHLIB_NONE, SHLIB_PIC, SHILB_MRELOCATABLE } shlib = SHLIB_NONE;
|
#endif
|
#endif
|
|
|
/* Flags to set in the elf header. */
|
/* Flags to set in the elf header. */
|
static flagword i370_flags = 0;
|
static flagword i370_flags = 0;
|
|
|
#ifndef WORKING_DOT_WORD
|
#ifndef WORKING_DOT_WORD
|
int md_short_jump_size = 4;
|
int md_short_jump_size = 4;
|
int md_long_jump_size = 4;
|
int md_long_jump_size = 4;
|
#endif
|
#endif
|
|
|
#ifdef OBJ_ELF
|
#ifdef OBJ_ELF
|
const char *md_shortopts = "l:um:K:VQ:";
|
const char *md_shortopts = "l:um:K:VQ:";
|
#else
|
#else
|
const char *md_shortopts = "um:";
|
const char *md_shortopts = "um:";
|
#endif
|
#endif
|
struct option md_longopts[] =
|
struct option md_longopts[] =
|
{
|
{
|
{NULL, no_argument, NULL, 0}
|
{NULL, no_argument, NULL, 0}
|
};
|
};
|
size_t md_longopts_size = sizeof (md_longopts);
|
size_t md_longopts_size = sizeof (md_longopts);
|
|
|
int
|
int
|
md_parse_option (int c, char *arg)
|
md_parse_option (int c, char *arg)
|
{
|
{
|
switch (c)
|
switch (c)
|
{
|
{
|
case 'u':
|
case 'u':
|
/* -u means that any undefined symbols should be treated as
|
/* -u means that any undefined symbols should be treated as
|
external, which is the default for gas anyhow. */
|
external, which is the default for gas anyhow. */
|
break;
|
break;
|
|
|
#ifdef OBJ_ELF
|
#ifdef OBJ_ELF
|
case 'K':
|
case 'K':
|
/* Recognize -K PIC */
|
/* Recognize -K PIC */
|
if (strcmp (arg, "PIC") == 0 || strcmp (arg, "pic") == 0)
|
if (strcmp (arg, "PIC") == 0 || strcmp (arg, "pic") == 0)
|
{
|
{
|
shlib = SHLIB_PIC;
|
shlib = SHLIB_PIC;
|
i370_flags |= EF_I370_RELOCATABLE_LIB;
|
i370_flags |= EF_I370_RELOCATABLE_LIB;
|
}
|
}
|
else
|
else
|
return 0;
|
return 0;
|
|
|
break;
|
break;
|
#endif
|
#endif
|
|
|
case 'm':
|
case 'm':
|
|
|
/* -m360 mean to assemble for the ancient 360 architecture. */
|
/* -m360 mean to assemble for the ancient 360 architecture. */
|
if (strcmp (arg, "360") == 0 || strcmp (arg, "i360") == 0)
|
if (strcmp (arg, "360") == 0 || strcmp (arg, "i360") == 0)
|
i370_cpu = I370_OPCODE_360;
|
i370_cpu = I370_OPCODE_360;
|
/* -mxa means to assemble for the IBM 370 XA. */
|
/* -mxa means to assemble for the IBM 370 XA. */
|
else if (strcmp (arg, "xa") == 0)
|
else if (strcmp (arg, "xa") == 0)
|
i370_cpu = I370_OPCODE_370_XA;
|
i370_cpu = I370_OPCODE_370_XA;
|
/* -many means to assemble for any architecture (370/XA). */
|
/* -many means to assemble for any architecture (370/XA). */
|
else if (strcmp (arg, "any") == 0)
|
else if (strcmp (arg, "any") == 0)
|
i370_cpu = I370_OPCODE_370;
|
i370_cpu = I370_OPCODE_370;
|
|
|
else if (strcmp (arg, "regnames") == 0)
|
else if (strcmp (arg, "regnames") == 0)
|
reg_names_p = TRUE;
|
reg_names_p = TRUE;
|
|
|
else if (strcmp (arg, "no-regnames") == 0)
|
else if (strcmp (arg, "no-regnames") == 0)
|
reg_names_p = FALSE;
|
reg_names_p = FALSE;
|
|
|
#ifdef OBJ_ELF
|
#ifdef OBJ_ELF
|
/* -mrelocatable/-mrelocatable-lib -- warn about
|
/* -mrelocatable/-mrelocatable-lib -- warn about
|
initializations that require relocation. */
|
initializations that require relocation. */
|
else if (strcmp (arg, "relocatable") == 0)
|
else if (strcmp (arg, "relocatable") == 0)
|
{
|
{
|
shlib = SHILB_MRELOCATABLE;
|
shlib = SHILB_MRELOCATABLE;
|
i370_flags |= EF_I370_RELOCATABLE;
|
i370_flags |= EF_I370_RELOCATABLE;
|
}
|
}
|
else if (strcmp (arg, "relocatable-lib") == 0)
|
else if (strcmp (arg, "relocatable-lib") == 0)
|
{
|
{
|
shlib = SHILB_MRELOCATABLE;
|
shlib = SHILB_MRELOCATABLE;
|
i370_flags |= EF_I370_RELOCATABLE_LIB;
|
i370_flags |= EF_I370_RELOCATABLE_LIB;
|
}
|
}
|
#endif
|
#endif
|
else
|
else
|
{
|
{
|
as_bad ("invalid switch -m%s", arg);
|
as_bad ("invalid switch -m%s", arg);
|
return 0;
|
return 0;
|
}
|
}
|
break;
|
break;
|
|
|
#ifdef OBJ_ELF
|
#ifdef OBJ_ELF
|
/* -V: SVR4 argument to print version ID. */
|
/* -V: SVR4 argument to print version ID. */
|
case 'V':
|
case 'V':
|
print_version_id ();
|
print_version_id ();
|
break;
|
break;
|
|
|
/* -Qy, -Qn: SVR4 arguments controlling whether a .comment section
|
/* -Qy, -Qn: SVR4 arguments controlling whether a .comment section
|
should be emitted or not. FIXME: Not implemented. */
|
should be emitted or not. FIXME: Not implemented. */
|
case 'Q':
|
case 'Q':
|
break;
|
break;
|
|
|
#endif
|
#endif
|
|
|
default:
|
default:
|
return 0;
|
return 0;
|
}
|
}
|
|
|
return 1;
|
return 1;
|
}
|
}
|
|
|
|
|
/* Set i370_cpu if it is not already set.
|
/* Set i370_cpu if it is not already set.
|
Currently defaults to the reasonable superset;
|
Currently defaults to the reasonable superset;
|
but can be made more fine grained if desred. */
|
but can be made more fine grained if desred. */
|
|
|
static void
|
static void
|
i370_set_cpu (void)
|
i370_set_cpu (void)
|
{
|
{
|
const char *default_os = TARGET_OS;
|
const char *default_os = TARGET_OS;
|
const char *default_cpu = TARGET_CPU;
|
const char *default_cpu = TARGET_CPU;
|
|
|
/* Override with the superset for the moment. */
|
/* Override with the superset for the moment. */
|
i370_cpu = I370_OPCODE_ESA390_SUPERSET;
|
i370_cpu = I370_OPCODE_ESA390_SUPERSET;
|
if (i370_cpu == 0)
|
if (i370_cpu == 0)
|
{
|
{
|
if (strcmp (default_cpu, "i360") == 0)
|
if (strcmp (default_cpu, "i360") == 0)
|
i370_cpu = I370_OPCODE_360;
|
i370_cpu = I370_OPCODE_360;
|
else if (strcmp (default_cpu, "i370") == 0)
|
else if (strcmp (default_cpu, "i370") == 0)
|
i370_cpu = I370_OPCODE_370;
|
i370_cpu = I370_OPCODE_370;
|
else if (strcmp (default_cpu, "XA") == 0)
|
else if (strcmp (default_cpu, "XA") == 0)
|
i370_cpu = I370_OPCODE_370_XA;
|
i370_cpu = I370_OPCODE_370_XA;
|
else
|
else
|
as_fatal ("Unknown default cpu = %s, os = %s", default_cpu, default_os);
|
as_fatal ("Unknown default cpu = %s, os = %s", default_cpu, default_os);
|
}
|
}
|
}
|
}
|
|
|
/* Figure out the BFD architecture to use.
|
/* Figure out the BFD architecture to use.
|
FIXME: specify the different 370 architectures. */
|
FIXME: specify the different 370 architectures. */
|
|
|
enum bfd_architecture
|
enum bfd_architecture
|
i370_arch (void)
|
i370_arch (void)
|
{
|
{
|
return bfd_arch_i370;
|
return bfd_arch_i370;
|
}
|
}
|
|
|
/* This function is called when the assembler starts up. It is called
|
/* This function is called when the assembler starts up. It is called
|
after the options have been parsed and the output file has been
|
after the options have been parsed and the output file has been
|
opened. */
|
opened. */
|
|
|
void
|
void
|
md_begin (void)
|
md_begin (void)
|
{
|
{
|
const struct i370_opcode *op;
|
const struct i370_opcode *op;
|
const struct i370_opcode *op_end;
|
const struct i370_opcode *op_end;
|
const struct i370_macro *macro;
|
const struct i370_macro *macro;
|
const struct i370_macro *macro_end;
|
const struct i370_macro *macro_end;
|
bfd_boolean dup_insn = FALSE;
|
bfd_boolean dup_insn = FALSE;
|
|
|
i370_set_cpu ();
|
i370_set_cpu ();
|
|
|
#ifdef OBJ_ELF
|
#ifdef OBJ_ELF
|
/* Set the ELF flags if desired. */
|
/* Set the ELF flags if desired. */
|
if (i370_flags)
|
if (i370_flags)
|
bfd_set_private_flags (stdoutput, i370_flags);
|
bfd_set_private_flags (stdoutput, i370_flags);
|
#endif
|
#endif
|
|
|
/* Insert the opcodes into a hash table. */
|
/* Insert the opcodes into a hash table. */
|
i370_hash = hash_new ();
|
i370_hash = hash_new ();
|
|
|
op_end = i370_opcodes + i370_num_opcodes;
|
op_end = i370_opcodes + i370_num_opcodes;
|
for (op = i370_opcodes; op < op_end; op++)
|
for (op = i370_opcodes; op < op_end; op++)
|
{
|
{
|
know ((op->opcode.i[0] & op->mask.i[0]) == op->opcode.i[0]
|
know ((op->opcode.i[0] & op->mask.i[0]) == op->opcode.i[0]
|
&& (op->opcode.i[1] & op->mask.i[1]) == op->opcode.i[1]);
|
&& (op->opcode.i[1] & op->mask.i[1]) == op->opcode.i[1]);
|
|
|
if ((op->flags & i370_cpu) != 0)
|
if ((op->flags & i370_cpu) != 0)
|
{
|
{
|
const char *retval;
|
const char *retval;
|
|
|
retval = hash_insert (i370_hash, op->name, (void *) op);
|
retval = hash_insert (i370_hash, op->name, (void *) op);
|
if (retval != (const char *) NULL)
|
if (retval != (const char *) NULL)
|
{
|
{
|
as_bad ("Internal assembler error for instruction %s", op->name);
|
as_bad ("Internal assembler error for instruction %s", op->name);
|
dup_insn = TRUE;
|
dup_insn = TRUE;
|
}
|
}
|
}
|
}
|
}
|
}
|
|
|
/* Insert the macros into a hash table. */
|
/* Insert the macros into a hash table. */
|
i370_macro_hash = hash_new ();
|
i370_macro_hash = hash_new ();
|
|
|
macro_end = i370_macros + i370_num_macros;
|
macro_end = i370_macros + i370_num_macros;
|
for (macro = i370_macros; macro < macro_end; macro++)
|
for (macro = i370_macros; macro < macro_end; macro++)
|
{
|
{
|
if ((macro->flags & i370_cpu) != 0)
|
if ((macro->flags & i370_cpu) != 0)
|
{
|
{
|
const char *retval;
|
const char *retval;
|
|
|
retval = hash_insert (i370_macro_hash, macro->name, (void *) macro);
|
retval = hash_insert (i370_macro_hash, macro->name, (void *) macro);
|
if (retval != (const char *) NULL)
|
if (retval != (const char *) NULL)
|
{
|
{
|
as_bad ("Internal assembler error for macro %s", macro->name);
|
as_bad ("Internal assembler error for macro %s", macro->name);
|
dup_insn = TRUE;
|
dup_insn = TRUE;
|
}
|
}
|
}
|
}
|
}
|
}
|
|
|
if (dup_insn)
|
if (dup_insn)
|
abort ();
|
abort ();
|
}
|
}
|
|
|
/* Insert an operand value into an instruction. */
|
/* Insert an operand value into an instruction. */
|
|
|
static i370_insn_t
|
static i370_insn_t
|
i370_insert_operand (i370_insn_t insn,
|
i370_insert_operand (i370_insn_t insn,
|
const struct i370_operand *operand,
|
const struct i370_operand *operand,
|
offsetT val)
|
offsetT val)
|
{
|
{
|
if (operand->insert)
|
if (operand->insert)
|
{
|
{
|
const char *errmsg;
|
const char *errmsg;
|
|
|
/* Used for 48-bit insn's. */
|
/* Used for 48-bit insn's. */
|
errmsg = NULL;
|
errmsg = NULL;
|
insn = (*operand->insert) (insn, (long) val, &errmsg);
|
insn = (*operand->insert) (insn, (long) val, &errmsg);
|
if (errmsg)
|
if (errmsg)
|
as_bad ("%s", errmsg);
|
as_bad ("%s", errmsg);
|
}
|
}
|
else
|
else
|
/* This is used only for 16, 32 bit insn's. */
|
/* This is used only for 16, 32 bit insn's. */
|
insn.i[0] |= (((long) val & ((1 << operand->bits) - 1))
|
insn.i[0] |= (((long) val & ((1 << operand->bits) - 1))
|
<< operand->shift);
|
<< operand->shift);
|
|
|
return insn;
|
return insn;
|
}
|
}
|
|
|
|
|
#ifdef OBJ_ELF
|
#ifdef OBJ_ELF
|
/* Parse @got, etc. and return the desired relocation.
|
/* Parse @got, etc. and return the desired relocation.
|
Currently, i370 does not support (don't really need to support) any
|
Currently, i370 does not support (don't really need to support) any
|
of these fancier markups ... for example, no one is going to
|
of these fancier markups ... for example, no one is going to
|
write 'L 6,=V(bogus)@got' it just doesn't make sense (at least to me).
|
write 'L 6,=V(bogus)@got' it just doesn't make sense (at least to me).
|
So basically, we could get away with this routine returning
|
So basically, we could get away with this routine returning
|
BFD_RELOC_UNUSED in all circumstances. However, I'll leave
|
BFD_RELOC_UNUSED in all circumstances. However, I'll leave
|
in for now in case someone ambitious finds a good use for this stuff ...
|
in for now in case someone ambitious finds a good use for this stuff ...
|
this routine was pretty much just copied from the powerpc code ... */
|
this routine was pretty much just copied from the powerpc code ... */
|
|
|
static bfd_reloc_code_real_type
|
static bfd_reloc_code_real_type
|
i370_elf_suffix (char **str_p, expressionS *exp_p)
|
i370_elf_suffix (char **str_p, expressionS *exp_p)
|
{
|
{
|
struct map_bfd
|
struct map_bfd
|
{
|
{
|
char *string;
|
char *string;
|
int length;
|
int length;
|
bfd_reloc_code_real_type reloc;
|
bfd_reloc_code_real_type reloc;
|
};
|
};
|
|
|
char ident[20];
|
char ident[20];
|
char *str = *str_p;
|
char *str = *str_p;
|
char *str2;
|
char *str2;
|
int ch;
|
int ch;
|
int len;
|
int len;
|
struct map_bfd *ptr;
|
struct map_bfd *ptr;
|
|
|
#define MAP(str,reloc) { str, sizeof (str) - 1, reloc }
|
#define MAP(str,reloc) { str, sizeof (str) - 1, reloc }
|
|
|
static struct map_bfd mapping[] =
|
static struct map_bfd mapping[] =
|
{
|
{
|
/* warnings with -mrelocatable. */
|
/* warnings with -mrelocatable. */
|
MAP ("fixup", BFD_RELOC_CTOR),
|
MAP ("fixup", BFD_RELOC_CTOR),
|
{ (char *)0, 0, BFD_RELOC_UNUSED }
|
{ (char *)0, 0, BFD_RELOC_UNUSED }
|
};
|
};
|
|
|
if (*str++ != '@')
|
if (*str++ != '@')
|
return BFD_RELOC_UNUSED;
|
return BFD_RELOC_UNUSED;
|
|
|
for (ch = *str, str2 = ident;
|
for (ch = *str, str2 = ident;
|
(str2 < ident + sizeof (ident) - 1
|
(str2 < ident + sizeof (ident) - 1
|
&& (ISALNUM (ch) || ch == '@'));
|
&& (ISALNUM (ch) || ch == '@'));
|
ch = *++str)
|
ch = *++str)
|
*str2++ = TOLOWER (ch);
|
*str2++ = TOLOWER (ch);
|
|
|
*str2 = '\0';
|
*str2 = '\0';
|
len = str2 - ident;
|
len = str2 - ident;
|
|
|
ch = ident[0];
|
ch = ident[0];
|
for (ptr = &mapping[0]; ptr->length > 0; ptr++)
|
for (ptr = &mapping[0]; ptr->length > 0; ptr++)
|
if (ch == ptr->string[0]
|
if (ch == ptr->string[0]
|
&& len == ptr->length
|
&& len == ptr->length
|
&& memcmp (ident, ptr->string, ptr->length) == 0)
|
&& memcmp (ident, ptr->string, ptr->length) == 0)
|
{
|
{
|
if (exp_p->X_add_number != 0
|
if (exp_p->X_add_number != 0
|
&& (ptr->reloc == BFD_RELOC_16_GOTOFF
|
&& (ptr->reloc == BFD_RELOC_16_GOTOFF
|
|| ptr->reloc == BFD_RELOC_LO16_GOTOFF
|
|| ptr->reloc == BFD_RELOC_LO16_GOTOFF
|
|| ptr->reloc == BFD_RELOC_HI16_GOTOFF
|
|| ptr->reloc == BFD_RELOC_HI16_GOTOFF
|
|| ptr->reloc == BFD_RELOC_HI16_S_GOTOFF))
|
|| ptr->reloc == BFD_RELOC_HI16_S_GOTOFF))
|
as_warn ("identifier+constant@got means identifier@got+constant");
|
as_warn ("identifier+constant@got means identifier@got+constant");
|
|
|
/* Now check for identifier@suffix+constant */
|
/* Now check for identifier@suffix+constant */
|
if (*str == '-' || *str == '+')
|
if (*str == '-' || *str == '+')
|
{
|
{
|
char *orig_line = input_line_pointer;
|
char *orig_line = input_line_pointer;
|
expressionS new_exp;
|
expressionS new_exp;
|
|
|
input_line_pointer = str;
|
input_line_pointer = str;
|
expression (&new_exp);
|
expression (&new_exp);
|
if (new_exp.X_op == O_constant)
|
if (new_exp.X_op == O_constant)
|
{
|
{
|
exp_p->X_add_number += new_exp.X_add_number;
|
exp_p->X_add_number += new_exp.X_add_number;
|
str = input_line_pointer;
|
str = input_line_pointer;
|
}
|
}
|
|
|
if (&input_line_pointer != str_p)
|
if (&input_line_pointer != str_p)
|
input_line_pointer = orig_line;
|
input_line_pointer = orig_line;
|
}
|
}
|
|
|
*str_p = str;
|
*str_p = str;
|
return ptr->reloc;
|
return ptr->reloc;
|
}
|
}
|
|
|
return BFD_RELOC_UNUSED;
|
return BFD_RELOC_UNUSED;
|
}
|
}
|
|
|
/* Like normal .long/.short/.word, except support @got, etc.
|
/* Like normal .long/.short/.word, except support @got, etc.
|
Clobbers input_line_pointer, checks end-of-line. */
|
Clobbers input_line_pointer, checks end-of-line. */
|
|
|
static void
|
static void
|
i370_elf_cons (int nbytes) /* 1=.byte, 2=.word, 4=.long. */
|
i370_elf_cons (int nbytes) /* 1=.byte, 2=.word, 4=.long. */
|
{
|
{
|
expressionS exp;
|
expressionS exp;
|
bfd_reloc_code_real_type reloc;
|
bfd_reloc_code_real_type reloc;
|
|
|
if (is_it_end_of_statement ())
|
if (is_it_end_of_statement ())
|
{
|
{
|
demand_empty_rest_of_line ();
|
demand_empty_rest_of_line ();
|
return;
|
return;
|
}
|
}
|
|
|
do
|
do
|
{
|
{
|
expression (&exp);
|
expression (&exp);
|
|
|
if (exp.X_op == O_symbol
|
if (exp.X_op == O_symbol
|
&& *input_line_pointer == '@'
|
&& *input_line_pointer == '@'
|
&& (reloc = i370_elf_suffix (&input_line_pointer, &exp)) != BFD_RELOC_UNUSED)
|
&& (reloc = i370_elf_suffix (&input_line_pointer, &exp)) != BFD_RELOC_UNUSED)
|
{
|
{
|
reloc_howto_type *reloc_howto = bfd_reloc_type_lookup (stdoutput, reloc);
|
reloc_howto_type *reloc_howto = bfd_reloc_type_lookup (stdoutput, reloc);
|
int size = bfd_get_reloc_size (reloc_howto);
|
int size = bfd_get_reloc_size (reloc_howto);
|
|
|
if (size > nbytes)
|
if (size > nbytes)
|
as_bad ("%s relocations do not fit in %d bytes\n", reloc_howto->name, nbytes);
|
as_bad ("%s relocations do not fit in %d bytes\n", reloc_howto->name, nbytes);
|
else
|
else
|
{
|
{
|
char *p = frag_more ((int) nbytes);
|
char *p = frag_more ((int) nbytes);
|
int offset = nbytes - size;
|
int offset = nbytes - size;
|
|
|
fix_new_exp (frag_now, p - frag_now->fr_literal + offset, size, &exp, 0, reloc);
|
fix_new_exp (frag_now, p - frag_now->fr_literal + offset, size, &exp, 0, reloc);
|
}
|
}
|
}
|
}
|
else
|
else
|
emit_expr (&exp, (unsigned int) nbytes);
|
emit_expr (&exp, (unsigned int) nbytes);
|
}
|
}
|
while (*input_line_pointer++ == ',');
|
while (*input_line_pointer++ == ',');
|
|
|
input_line_pointer--; /* Put terminator back into stream. */
|
input_line_pointer--; /* Put terminator back into stream. */
|
demand_empty_rest_of_line ();
|
demand_empty_rest_of_line ();
|
}
|
}
|
|
|
|
|
/* ASCII to EBCDIC conversion table. */
|
/* ASCII to EBCDIC conversion table. */
|
static unsigned char ascebc[256] =
|
static unsigned char ascebc[256] =
|
{
|
{
|
/*00 NL SH SX EX ET NQ AK BL */
|
/*00 NL SH SX EX ET NQ AK BL */
|
0x00, 0x01, 0x02, 0x03, 0x37, 0x2D, 0x2E, 0x2F,
|
0x00, 0x01, 0x02, 0x03, 0x37, 0x2D, 0x2E, 0x2F,
|
/*08 BS HT LF VT FF CR SO SI */
|
/*08 BS HT LF VT FF CR SO SI */
|
0x16, 0x05, 0x15, 0x0B, 0x0C, 0x0D, 0x0E, 0x0F,
|
0x16, 0x05, 0x15, 0x0B, 0x0C, 0x0D, 0x0E, 0x0F,
|
/*10 DL D1 D2 D3 D4 NK SN EB */
|
/*10 DL D1 D2 D3 D4 NK SN EB */
|
0x10, 0x11, 0x12, 0x13, 0x3C, 0x3D, 0x32, 0x26,
|
0x10, 0x11, 0x12, 0x13, 0x3C, 0x3D, 0x32, 0x26,
|
/*18 CN EM SB EC FS GS RS US */
|
/*18 CN EM SB EC FS GS RS US */
|
0x18, 0x19, 0x3F, 0x27, 0x1C, 0x1D, 0x1E, 0x1F,
|
0x18, 0x19, 0x3F, 0x27, 0x1C, 0x1D, 0x1E, 0x1F,
|
/*20 SP ! " # $ % & ' */
|
/*20 SP ! " # $ % & ' */
|
0x40, 0x5A, 0x7F, 0x7B, 0x5B, 0x6C, 0x50, 0x7D,
|
0x40, 0x5A, 0x7F, 0x7B, 0x5B, 0x6C, 0x50, 0x7D,
|
/*28 ( ) * + , - . / */
|
/*28 ( ) * + , - . / */
|
0x4D, 0x5D, 0x5C, 0x4E, 0x6B, 0x60, 0x4B, 0x61,
|
0x4D, 0x5D, 0x5C, 0x4E, 0x6B, 0x60, 0x4B, 0x61,
|
/*30 0 1 2 3 4 5 6 7 */
|
/*30 0 1 2 3 4 5 6 7 */
|
0xF0, 0xF1, 0xF2, 0xF3, 0xF4, 0xF5, 0xF6, 0xF7,
|
0xF0, 0xF1, 0xF2, 0xF3, 0xF4, 0xF5, 0xF6, 0xF7,
|
/*38 8 9 : ; < = > ? */
|
/*38 8 9 : ; < = > ? */
|
0xF8, 0xF9, 0x7A, 0x5E, 0x4C, 0x7E, 0x6E, 0x6F,
|
0xF8, 0xF9, 0x7A, 0x5E, 0x4C, 0x7E, 0x6E, 0x6F,
|
/*40 @ A B C D E F G */
|
/*40 @ A B C D E F G */
|
0x7C, 0xC1, 0xC2, 0xC3, 0xC4, 0xC5, 0xC6, 0xC7,
|
0x7C, 0xC1, 0xC2, 0xC3, 0xC4, 0xC5, 0xC6, 0xC7,
|
/*48 H I J K L M N O */
|
/*48 H I J K L M N O */
|
0xC8, 0xC9, 0xD1, 0xD2, 0xD3, 0xD4, 0xD5, 0xD6,
|
0xC8, 0xC9, 0xD1, 0xD2, 0xD3, 0xD4, 0xD5, 0xD6,
|
/*50 P Q R S T U V W */
|
/*50 P Q R S T U V W */
|
0xD7, 0xD8, 0xD9, 0xE2, 0xE3, 0xE4, 0xE5, 0xE6,
|
0xD7, 0xD8, 0xD9, 0xE2, 0xE3, 0xE4, 0xE5, 0xE6,
|
/*58 X Y Z [ \ ] ^ _ */
|
/*58 X Y Z [ \ ] ^ _ */
|
0xE7, 0xE8, 0xE9, 0xAD, 0xE0, 0xBD, 0x5F, 0x6D,
|
0xE7, 0xE8, 0xE9, 0xAD, 0xE0, 0xBD, 0x5F, 0x6D,
|
/*60 ` a b c d e f g */
|
/*60 ` a b c d e f g */
|
0x79, 0x81, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87,
|
0x79, 0x81, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87,
|
/*68 h i j k l m n o */
|
/*68 h i j k l m n o */
|
0x88, 0x89, 0x91, 0x92, 0x93, 0x94, 0x95, 0x96,
|
0x88, 0x89, 0x91, 0x92, 0x93, 0x94, 0x95, 0x96,
|
/*70 p q r s t u v w */
|
/*70 p q r s t u v w */
|
0x97, 0x98, 0x99, 0xA2, 0xA3, 0xA4, 0xA5, 0xA6,
|
0x97, 0x98, 0x99, 0xA2, 0xA3, 0xA4, 0xA5, 0xA6,
|
/*78 x y z { | } ~ DL */
|
/*78 x y z { | } ~ DL */
|
0xA7, 0xA8, 0xA9, 0xC0, 0x4F, 0xD0, 0xA1, 0x07,
|
0xA7, 0xA8, 0xA9, 0xC0, 0x4F, 0xD0, 0xA1, 0x07,
|
0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F,
|
0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F,
|
0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F,
|
0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F,
|
0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F,
|
0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F,
|
0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F,
|
0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F,
|
0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F,
|
0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F,
|
0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F,
|
0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F,
|
0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F,
|
0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F,
|
0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F,
|
0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F,
|
0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F,
|
0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F,
|
0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F,
|
0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F,
|
0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F,
|
0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F,
|
0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F,
|
0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F,
|
0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F,
|
0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F,
|
0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F,
|
0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F,
|
0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F,
|
0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F,
|
0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0xFF
|
0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0xFF
|
};
|
};
|
|
|
/* EBCDIC to ASCII conversion table. */
|
/* EBCDIC to ASCII conversion table. */
|
unsigned char ebcasc[256] =
|
unsigned char ebcasc[256] =
|
{
|
{
|
/*00 NU SH SX EX PF HT LC DL */
|
/*00 NU SH SX EX PF HT LC DL */
|
0x00, 0x01, 0x02, 0x03, 0x00, 0x09, 0x00, 0x7F,
|
0x00, 0x01, 0x02, 0x03, 0x00, 0x09, 0x00, 0x7F,
|
/*08 SM VT FF CR SO SI */
|
/*08 SM VT FF CR SO SI */
|
0x00, 0x00, 0x00, 0x0B, 0x0C, 0x0D, 0x0E, 0x0F,
|
0x00, 0x00, 0x00, 0x0B, 0x0C, 0x0D, 0x0E, 0x0F,
|
/*10 DE D1 D2 TM RS NL BS IL */
|
/*10 DE D1 D2 TM RS NL BS IL */
|
0x10, 0x11, 0x12, 0x13, 0x14, 0x0A, 0x08, 0x00,
|
0x10, 0x11, 0x12, 0x13, 0x14, 0x0A, 0x08, 0x00,
|
/*18 CN EM CC C1 FS GS RS US */
|
/*18 CN EM CC C1 FS GS RS US */
|
0x18, 0x19, 0x00, 0x00, 0x1C, 0x1D, 0x1E, 0x1F,
|
0x18, 0x19, 0x00, 0x00, 0x1C, 0x1D, 0x1E, 0x1F,
|
/*20 DS SS FS BP LF EB EC */
|
/*20 DS SS FS BP LF EB EC */
|
0x00, 0x00, 0x00, 0x00, 0x00, 0x0A, 0x17, 0x1B,
|
0x00, 0x00, 0x00, 0x00, 0x00, 0x0A, 0x17, 0x1B,
|
/*28 SM C2 EQ AK BL */
|
/*28 SM C2 EQ AK BL */
|
0x00, 0x00, 0x00, 0x00, 0x05, 0x06, 0x07, 0x00,
|
0x00, 0x00, 0x00, 0x00, 0x05, 0x06, 0x07, 0x00,
|
/*30 SY PN RS UC ET */
|
/*30 SY PN RS UC ET */
|
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x04,
|
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x04,
|
/*38 C3 D4 NK SU */
|
/*38 C3 D4 NK SU */
|
0x00, 0x00, 0x00, 0x00, 0x14, 0x15, 0x00, 0x1A,
|
0x00, 0x00, 0x00, 0x00, 0x14, 0x15, 0x00, 0x1A,
|
/*40 SP */
|
/*40 SP */
|
0x20, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
0x20, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
/*48 . < ( + | */
|
/*48 . < ( + | */
|
0x00, 0x00, 0x00, 0x2E, 0x3C, 0x28, 0x2B, 0x7C,
|
0x00, 0x00, 0x00, 0x2E, 0x3C, 0x28, 0x2B, 0x7C,
|
/*50 & */
|
/*50 & */
|
0x26, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
0x26, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
/*58 ! $ * ) ; ^ */
|
/*58 ! $ * ) ; ^ */
|
0x00, 0x00, 0x21, 0x24, 0x2A, 0x29, 0x3B, 0x5E,
|
0x00, 0x00, 0x21, 0x24, 0x2A, 0x29, 0x3B, 0x5E,
|
/*60 - / */
|
/*60 - / */
|
0x2D, 0x2F, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
0x2D, 0x2F, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
/*68 , % _ > ? */
|
/*68 , % _ > ? */
|
0x00, 0x00, 0x00, 0x2C, 0x25, 0x5F, 0x3E, 0x3F,
|
0x00, 0x00, 0x00, 0x2C, 0x25, 0x5F, 0x3E, 0x3F,
|
/*70 */
|
/*70 */
|
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
/*78 ` : # @ ' = " */
|
/*78 ` : # @ ' = " */
|
0x00, 0x60, 0x3A, 0x23, 0x40, 0x27, 0x3D, 0x22,
|
0x00, 0x60, 0x3A, 0x23, 0x40, 0x27, 0x3D, 0x22,
|
/*80 a b c d e f g */
|
/*80 a b c d e f g */
|
0x00, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67,
|
0x00, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67,
|
/*88 h i { */
|
/*88 h i { */
|
0x68, 0x69, 0x00, 0x7B, 0x00, 0x00, 0x00, 0x00,
|
0x68, 0x69, 0x00, 0x7B, 0x00, 0x00, 0x00, 0x00,
|
/*90 j k l m n o p */
|
/*90 j k l m n o p */
|
0x00, 0x6A, 0x6B, 0x6C, 0x6D, 0x6E, 0x6F, 0x70,
|
0x00, 0x6A, 0x6B, 0x6C, 0x6D, 0x6E, 0x6F, 0x70,
|
/*98 q r } */
|
/*98 q r } */
|
0x71, 0x72, 0x00, 0x7D, 0x00, 0x00, 0x00, 0x00,
|
0x71, 0x72, 0x00, 0x7D, 0x00, 0x00, 0x00, 0x00,
|
/*A0 ~ s t u v w x */
|
/*A0 ~ s t u v w x */
|
0x00, 0x7E, 0x73, 0x74, 0x75, 0x76, 0x77, 0x78,
|
0x00, 0x7E, 0x73, 0x74, 0x75, 0x76, 0x77, 0x78,
|
/*A8 y z [ */
|
/*A8 y z [ */
|
0x79, 0x7A, 0x00, 0x00, 0x00, 0x5B, 0x00, 0x00,
|
0x79, 0x7A, 0x00, 0x00, 0x00, 0x5B, 0x00, 0x00,
|
/*B0 */
|
/*B0 */
|
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
/*B8 ] */
|
/*B8 ] */
|
0x00, 0x00, 0x00, 0x00, 0x00, 0x5D, 0x00, 0x00,
|
0x00, 0x00, 0x00, 0x00, 0x00, 0x5D, 0x00, 0x00,
|
/*C0 { A B C D E F G */
|
/*C0 { A B C D E F G */
|
0x7B, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47,
|
0x7B, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47,
|
/*C8 H I */
|
/*C8 H I */
|
0x48, 0x49, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
0x48, 0x49, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
/*D0 } J K L M N O P */
|
/*D0 } J K L M N O P */
|
0x7D, 0x4A, 0x4B, 0x4C, 0x4D, 0x4E, 0x4F, 0x50,
|
0x7D, 0x4A, 0x4B, 0x4C, 0x4D, 0x4E, 0x4F, 0x50,
|
/*D8 Q R */
|
/*D8 Q R */
|
0x51, 0x52, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
0x51, 0x52, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
/*E0 \ S T U V W X */
|
/*E0 \ S T U V W X */
|
0x5C, 0x00, 0x53, 0x54, 0x55, 0x56, 0x57, 0x58,
|
0x5C, 0x00, 0x53, 0x54, 0x55, 0x56, 0x57, 0x58,
|
/*E8 Y Z */
|
/*E8 Y Z */
|
0x59, 0x5A, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
0x59, 0x5A, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
/*F0 0 1 2 3 4 5 6 7 */
|
/*F0 0 1 2 3 4 5 6 7 */
|
0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37,
|
0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37,
|
/*F8 8 9 */
|
/*F8 8 9 */
|
0x38, 0x39, 0x00, 0x00, 0x00, 0x00, 0x00, 0xFF
|
0x38, 0x39, 0x00, 0x00, 0x00, 0x00, 0x00, 0xFF
|
};
|
};
|
|
|
/* EBCDIC translation tables needed for 3270 support. */
|
/* EBCDIC translation tables needed for 3270 support. */
|
|
|
static void
|
static void
|
i370_ebcdic (int unused ATTRIBUTE_UNUSED)
|
i370_ebcdic (int unused ATTRIBUTE_UNUSED)
|
{
|
{
|
char *p, *end;
|
char *p, *end;
|
char delim = 0;
|
char delim = 0;
|
size_t nbytes;
|
size_t nbytes;
|
|
|
nbytes = strlen (input_line_pointer);
|
nbytes = strlen (input_line_pointer);
|
end = input_line_pointer + nbytes;
|
end = input_line_pointer + nbytes;
|
while ('\r' == *end) end --;
|
while ('\r' == *end) end --;
|
while ('\n' == *end) end --;
|
while ('\n' == *end) end --;
|
|
|
delim = *input_line_pointer;
|
delim = *input_line_pointer;
|
if (('\'' == delim) || ('\"' == delim))
|
if (('\'' == delim) || ('\"' == delim))
|
{
|
{
|
input_line_pointer ++;
|
input_line_pointer ++;
|
end = rindex (input_line_pointer, delim);
|
end = rindex (input_line_pointer, delim);
|
}
|
}
|
|
|
if (end > input_line_pointer)
|
if (end > input_line_pointer)
|
{
|
{
|
nbytes = end - input_line_pointer +1;
|
nbytes = end - input_line_pointer +1;
|
p = frag_more (nbytes);
|
p = frag_more (nbytes);
|
while (end > input_line_pointer)
|
while (end > input_line_pointer)
|
{
|
{
|
*p = ascebc [(unsigned char) (*input_line_pointer)];
|
*p = ascebc [(unsigned char) (*input_line_pointer)];
|
++p; ++input_line_pointer;
|
++p; ++input_line_pointer;
|
}
|
}
|
*p = '\0';
|
*p = '\0';
|
}
|
}
|
if (delim == *input_line_pointer) ++input_line_pointer;
|
if (delim == *input_line_pointer) ++input_line_pointer;
|
}
|
}
|
|
|
|
|
/* Stub out a couple of routines. */
|
/* Stub out a couple of routines. */
|
|
|
static void
|
static void
|
i370_rmode (int unused ATTRIBUTE_UNUSED)
|
i370_rmode (int unused ATTRIBUTE_UNUSED)
|
{
|
{
|
as_tsktsk ("rmode ignored");
|
as_tsktsk ("rmode ignored");
|
}
|
}
|
|
|
static void
|
static void
|
i370_dsect (int sect)
|
i370_dsect (int sect)
|
{
|
{
|
char *save_line = input_line_pointer;
|
char *save_line = input_line_pointer;
|
static char section[] = ".data\n";
|
static char section[] = ".data\n";
|
|
|
/* Just pretend this is .section .data. */
|
/* Just pretend this is .section .data. */
|
input_line_pointer = section;
|
input_line_pointer = section;
|
obj_elf_section (sect);
|
obj_elf_section (sect);
|
|
|
input_line_pointer = save_line;
|
input_line_pointer = save_line;
|
}
|
}
|
|
|
static void
|
static void
|
i370_csect (int unused ATTRIBUTE_UNUSED)
|
i370_csect (int unused ATTRIBUTE_UNUSED)
|
{
|
{
|
as_tsktsk ("csect not supported");
|
as_tsktsk ("csect not supported");
|
}
|
}
|
|
|
|
|
/* DC Define Const is only partially supported.
|
/* DC Define Const is only partially supported.
|
For samplecode on what to do, look at i370_elf_cons() above.
|
For samplecode on what to do, look at i370_elf_cons() above.
|
This code handles pseudoops of the style
|
This code handles pseudoops of the style
|
DC D'3.141592653' # in sysv4, .double 3.14159265
|
DC D'3.141592653' # in sysv4, .double 3.14159265
|
DC F'1' # in sysv4, .long 1. */
|
DC F'1' # in sysv4, .long 1. */
|
|
|
static void
|
static void
|
i370_dc (int unused ATTRIBUTE_UNUSED)
|
i370_dc (int unused ATTRIBUTE_UNUSED)
|
{
|
{
|
char * p, tmp[50];
|
char * p, tmp[50];
|
int nbytes=0;
|
int nbytes=0;
|
expressionS exp;
|
expressionS exp;
|
char type=0;
|
char type=0;
|
|
|
if (is_it_end_of_statement ())
|
if (is_it_end_of_statement ())
|
{
|
{
|
demand_empty_rest_of_line ();
|
demand_empty_rest_of_line ();
|
return;
|
return;
|
}
|
}
|
|
|
/* Figure out the size. */
|
/* Figure out the size. */
|
type = *input_line_pointer++;
|
type = *input_line_pointer++;
|
switch (type)
|
switch (type)
|
{
|
{
|
case 'H': /* 16-bit */
|
case 'H': /* 16-bit */
|
nbytes = 2;
|
nbytes = 2;
|
break;
|
break;
|
case 'E': /* 32-bit */
|
case 'E': /* 32-bit */
|
case 'F': /* 32-bit */
|
case 'F': /* 32-bit */
|
nbytes = 4;
|
nbytes = 4;
|
break;
|
break;
|
case 'D': /* 64-bit */
|
case 'D': /* 64-bit */
|
nbytes = 8;
|
nbytes = 8;
|
break;
|
break;
|
default:
|
default:
|
as_bad ("unsupported DC type");
|
as_bad ("unsupported DC type");
|
return;
|
return;
|
}
|
}
|
|
|
/* Get rid of pesky quotes. */
|
/* Get rid of pesky quotes. */
|
if ('\'' == *input_line_pointer)
|
if ('\'' == *input_line_pointer)
|
{
|
{
|
char * close;
|
char * close;
|
|
|
++input_line_pointer;
|
++input_line_pointer;
|
close = strchr (input_line_pointer, '\'');
|
close = strchr (input_line_pointer, '\'');
|
if (close)
|
if (close)
|
*close= ' ';
|
*close= ' ';
|
else
|
else
|
as_bad ("missing end-quote");
|
as_bad ("missing end-quote");
|
}
|
}
|
|
|
if ('\"' == *input_line_pointer)
|
if ('\"' == *input_line_pointer)
|
{
|
{
|
char * close;
|
char * close;
|
|
|
++input_line_pointer;
|
++input_line_pointer;
|
close = strchr (input_line_pointer, '\"');
|
close = strchr (input_line_pointer, '\"');
|
if (close)
|
if (close)
|
*close= ' ';
|
*close= ' ';
|
else
|
else
|
as_bad ("missing end-quote");
|
as_bad ("missing end-quote");
|
}
|
}
|
|
|
switch (type)
|
switch (type)
|
{
|
{
|
case 'H': /* 16-bit */
|
case 'H': /* 16-bit */
|
case 'F': /* 32-bit */
|
case 'F': /* 32-bit */
|
expression (&exp);
|
expression (&exp);
|
emit_expr (&exp, nbytes);
|
emit_expr (&exp, nbytes);
|
break;
|
break;
|
case 'E': /* 32-bit */
|
case 'E': /* 32-bit */
|
type = 'f';
|
type = 'f';
|
case 'D': /* 64-bit */
|
case 'D': /* 64-bit */
|
md_atof (type, tmp, &nbytes);
|
md_atof (type, tmp, &nbytes);
|
p = frag_more (nbytes);
|
p = frag_more (nbytes);
|
memcpy (p, tmp, nbytes);
|
memcpy (p, tmp, nbytes);
|
break;
|
break;
|
default:
|
default:
|
as_bad ("unsupported DC type");
|
as_bad ("unsupported DC type");
|
return;
|
return;
|
}
|
}
|
|
|
demand_empty_rest_of_line ();
|
demand_empty_rest_of_line ();
|
}
|
}
|
|
|
|
|
/* Provide minimal support for DS Define Storage. */
|
/* Provide minimal support for DS Define Storage. */
|
|
|
static void
|
static void
|
i370_ds (int unused ATTRIBUTE_UNUSED)
|
i370_ds (int unused ATTRIBUTE_UNUSED)
|
{
|
{
|
/* DS 0H or DS 0F or DS 0D. */
|
/* DS 0H or DS 0F or DS 0D. */
|
if ('0' == *input_line_pointer)
|
if ('0' == *input_line_pointer)
|
{
|
{
|
int alignment = 0; /* Left shift 1 << align. */
|
int alignment = 0; /* Left shift 1 << align. */
|
input_line_pointer ++;
|
input_line_pointer ++;
|
switch (*input_line_pointer++)
|
switch (*input_line_pointer++)
|
{
|
{
|
case 'H': /* 16-bit */
|
case 'H': /* 16-bit */
|
alignment = 1;
|
alignment = 1;
|
break;
|
break;
|
case 'F': /* 32-bit */
|
case 'F': /* 32-bit */
|
alignment = 2;
|
alignment = 2;
|
break;
|
break;
|
case 'D': /* 64-bit */
|
case 'D': /* 64-bit */
|
alignment = 3;
|
alignment = 3;
|
break;
|
break;
|
default:
|
default:
|
as_bad ("unsupported alignment");
|
as_bad ("unsupported alignment");
|
return;
|
return;
|
}
|
}
|
frag_align (alignment, 0, 0);
|
frag_align (alignment, 0, 0);
|
record_alignment (now_seg, alignment);
|
record_alignment (now_seg, alignment);
|
}
|
}
|
else
|
else
|
as_bad ("this DS form not yet supported");
|
as_bad ("this DS form not yet supported");
|
}
|
}
|
|
|
/* Solaris pseudo op to change to the .rodata section. */
|
/* Solaris pseudo op to change to the .rodata section. */
|
|
|
static void
|
static void
|
i370_elf_rdata (int sect)
|
i370_elf_rdata (int sect)
|
{
|
{
|
char *save_line = input_line_pointer;
|
char *save_line = input_line_pointer;
|
static char section[] = ".rodata\n";
|
static char section[] = ".rodata\n";
|
|
|
/* Just pretend this is .section .rodata. */
|
/* Just pretend this is .section .rodata. */
|
input_line_pointer = section;
|
input_line_pointer = section;
|
obj_elf_section (sect);
|
obj_elf_section (sect);
|
|
|
input_line_pointer = save_line;
|
input_line_pointer = save_line;
|
}
|
}
|
|
|
/* Pseudo op to make file scope bss items. */
|
/* Pseudo op to make file scope bss items. */
|
|
|
static void
|
static void
|
i370_elf_lcomm (int unused ATTRIBUTE_UNUSED)
|
i370_elf_lcomm (int unused ATTRIBUTE_UNUSED)
|
{
|
{
|
char *name;
|
char *name;
|
char c;
|
char c;
|
char *p;
|
char *p;
|
offsetT size;
|
offsetT size;
|
symbolS *symbolP;
|
symbolS *symbolP;
|
offsetT align;
|
offsetT align;
|
segT old_sec;
|
segT old_sec;
|
int old_subsec;
|
int old_subsec;
|
char *pfrag;
|
char *pfrag;
|
int align2;
|
int align2;
|
|
|
name = input_line_pointer;
|
name = input_line_pointer;
|
c = get_symbol_end ();
|
c = get_symbol_end ();
|
|
|
/* Just after name is now '\0'. */
|
/* Just after name is now '\0'. */
|
p = input_line_pointer;
|
p = input_line_pointer;
|
*p = c;
|
*p = c;
|
SKIP_WHITESPACE ();
|
SKIP_WHITESPACE ();
|
if (*input_line_pointer != ',')
|
if (*input_line_pointer != ',')
|
{
|
{
|
as_bad ("Expected comma after symbol-name: rest of line ignored.");
|
as_bad ("Expected comma after symbol-name: rest of line ignored.");
|
ignore_rest_of_line ();
|
ignore_rest_of_line ();
|
return;
|
return;
|
}
|
}
|
|
|
/* Skip ','. */
|
/* Skip ','. */
|
input_line_pointer++;
|
input_line_pointer++;
|
if ((size = get_absolute_expression ()) < 0)
|
if ((size = get_absolute_expression ()) < 0)
|
{
|
{
|
as_warn (".COMMon length (%ld.) <0! Ignored.", (long) size);
|
as_warn (".COMMon length (%ld.) <0! Ignored.", (long) size);
|
ignore_rest_of_line ();
|
ignore_rest_of_line ();
|
return;
|
return;
|
}
|
}
|
|
|
/* The third argument to .lcomm is the alignment. */
|
/* The third argument to .lcomm is the alignment. */
|
if (*input_line_pointer != ',')
|
if (*input_line_pointer != ',')
|
align = 8;
|
align = 8;
|
else
|
else
|
{
|
{
|
++input_line_pointer;
|
++input_line_pointer;
|
align = get_absolute_expression ();
|
align = get_absolute_expression ();
|
if (align <= 0)
|
if (align <= 0)
|
{
|
{
|
as_warn ("ignoring bad alignment");
|
as_warn ("ignoring bad alignment");
|
align = 8;
|
align = 8;
|
}
|
}
|
}
|
}
|
|
|
*p = 0;
|
*p = 0;
|
symbolP = symbol_find_or_make (name);
|
symbolP = symbol_find_or_make (name);
|
*p = c;
|
*p = c;
|
|
|
if (S_IS_DEFINED (symbolP) && ! S_IS_COMMON (symbolP))
|
if (S_IS_DEFINED (symbolP) && ! S_IS_COMMON (symbolP))
|
{
|
{
|
as_bad ("Ignoring attempt to re-define symbol `%s'.",
|
as_bad ("Ignoring attempt to re-define symbol `%s'.",
|
S_GET_NAME (symbolP));
|
S_GET_NAME (symbolP));
|
ignore_rest_of_line ();
|
ignore_rest_of_line ();
|
return;
|
return;
|
}
|
}
|
|
|
if (S_GET_VALUE (symbolP) && S_GET_VALUE (symbolP) != (valueT) size)
|
if (S_GET_VALUE (symbolP) && S_GET_VALUE (symbolP) != (valueT) size)
|
{
|
{
|
as_bad ("Length of .lcomm \"%s\" is already %ld. Not changed to %ld.",
|
as_bad ("Length of .lcomm \"%s\" is already %ld. Not changed to %ld.",
|
S_GET_NAME (symbolP),
|
S_GET_NAME (symbolP),
|
(long) S_GET_VALUE (symbolP),
|
(long) S_GET_VALUE (symbolP),
|
(long) size);
|
(long) size);
|
|
|
ignore_rest_of_line ();
|
ignore_rest_of_line ();
|
return;
|
return;
|
}
|
}
|
|
|
/* Allocate_bss: */
|
/* Allocate_bss: */
|
old_sec = now_seg;
|
old_sec = now_seg;
|
old_subsec = now_subseg;
|
old_subsec = now_subseg;
|
if (align)
|
if (align)
|
{
|
{
|
/* Convert to a power of 2 alignment. */
|
/* Convert to a power of 2 alignment. */
|
for (align2 = 0; (align & 1) == 0; align >>= 1, ++align2)
|
for (align2 = 0; (align & 1) == 0; align >>= 1, ++align2)
|
;
|
;
|
if (align != 1)
|
if (align != 1)
|
{
|
{
|
as_bad ("Common alignment not a power of 2");
|
as_bad ("Common alignment not a power of 2");
|
ignore_rest_of_line ();
|
ignore_rest_of_line ();
|
return;
|
return;
|
}
|
}
|
}
|
}
|
else
|
else
|
align2 = 0;
|
align2 = 0;
|
|
|
record_alignment (bss_section, align2);
|
record_alignment (bss_section, align2);
|
subseg_set (bss_section, 0);
|
subseg_set (bss_section, 0);
|
if (align2)
|
if (align2)
|
frag_align (align2, 0, 0);
|
frag_align (align2, 0, 0);
|
if (S_GET_SEGMENT (symbolP) == bss_section)
|
if (S_GET_SEGMENT (symbolP) == bss_section)
|
symbol_get_frag (symbolP)->fr_symbol = 0;
|
symbol_get_frag (symbolP)->fr_symbol = 0;
|
symbol_set_frag (symbolP, frag_now);
|
symbol_set_frag (symbolP, frag_now);
|
pfrag = frag_var (rs_org, 1, 1, (relax_substateT) 0, symbolP, size,
|
pfrag = frag_var (rs_org, 1, 1, (relax_substateT) 0, symbolP, size,
|
(char *) 0);
|
(char *) 0);
|
*pfrag = 0;
|
*pfrag = 0;
|
S_SET_SIZE (symbolP, size);
|
S_SET_SIZE (symbolP, size);
|
S_SET_SEGMENT (symbolP, bss_section);
|
S_SET_SEGMENT (symbolP, bss_section);
|
subseg_set (old_sec, old_subsec);
|
subseg_set (old_sec, old_subsec);
|
demand_empty_rest_of_line ();
|
demand_empty_rest_of_line ();
|
}
|
}
|
|
|
/* Validate any relocations emitted for -mrelocatable, possibly adding
|
/* Validate any relocations emitted for -mrelocatable, possibly adding
|
fixups for word relocations in writable segments, so we can adjust
|
fixups for word relocations in writable segments, so we can adjust
|
them at runtime. */
|
them at runtime. */
|
|
|
static void
|
static void
|
i370_elf_validate_fix (fixS *fixp, segT seg)
|
i370_elf_validate_fix (fixS *fixp, segT seg)
|
{
|
{
|
if (fixp->fx_done || fixp->fx_pcrel)
|
if (fixp->fx_done || fixp->fx_pcrel)
|
return;
|
return;
|
|
|
switch (shlib)
|
switch (shlib)
|
{
|
{
|
case SHLIB_NONE:
|
case SHLIB_NONE:
|
case SHLIB_PIC:
|
case SHLIB_PIC:
|
return;
|
return;
|
|
|
case SHILB_MRELOCATABLE:
|
case SHILB_MRELOCATABLE:
|
if (fixp->fx_r_type <= BFD_RELOC_UNUSED
|
if (fixp->fx_r_type <= BFD_RELOC_UNUSED
|
&& fixp->fx_r_type != BFD_RELOC_16_GOTOFF
|
&& fixp->fx_r_type != BFD_RELOC_16_GOTOFF
|
&& fixp->fx_r_type != BFD_RELOC_HI16_GOTOFF
|
&& fixp->fx_r_type != BFD_RELOC_HI16_GOTOFF
|
&& fixp->fx_r_type != BFD_RELOC_LO16_GOTOFF
|
&& fixp->fx_r_type != BFD_RELOC_LO16_GOTOFF
|
&& fixp->fx_r_type != BFD_RELOC_HI16_S_GOTOFF
|
&& fixp->fx_r_type != BFD_RELOC_HI16_S_GOTOFF
|
&& fixp->fx_r_type != BFD_RELOC_32_BASEREL
|
&& fixp->fx_r_type != BFD_RELOC_32_BASEREL
|
&& fixp->fx_r_type != BFD_RELOC_LO16_BASEREL
|
&& fixp->fx_r_type != BFD_RELOC_LO16_BASEREL
|
&& fixp->fx_r_type != BFD_RELOC_HI16_BASEREL
|
&& fixp->fx_r_type != BFD_RELOC_HI16_BASEREL
|
&& fixp->fx_r_type != BFD_RELOC_HI16_S_BASEREL
|
&& fixp->fx_r_type != BFD_RELOC_HI16_S_BASEREL
|
&& strcmp (segment_name (seg), ".got2") != 0
|
&& strcmp (segment_name (seg), ".got2") != 0
|
&& strcmp (segment_name (seg), ".dtors") != 0
|
&& strcmp (segment_name (seg), ".dtors") != 0
|
&& strcmp (segment_name (seg), ".ctors") != 0
|
&& strcmp (segment_name (seg), ".ctors") != 0
|
&& strcmp (segment_name (seg), ".fixup") != 0
|
&& strcmp (segment_name (seg), ".fixup") != 0
|
&& strcmp (segment_name (seg), ".stab") != 0
|
&& strcmp (segment_name (seg), ".stab") != 0
|
&& strcmp (segment_name (seg), ".gcc_except_table") != 0
|
&& strcmp (segment_name (seg), ".gcc_except_table") != 0
|
&& strcmp (segment_name (seg), ".ex_shared") != 0)
|
&& strcmp (segment_name (seg), ".ex_shared") != 0)
|
{
|
{
|
if ((seg->flags & (SEC_READONLY | SEC_CODE)) != 0
|
if ((seg->flags & (SEC_READONLY | SEC_CODE)) != 0
|
|| fixp->fx_r_type != BFD_RELOC_CTOR)
|
|| fixp->fx_r_type != BFD_RELOC_CTOR)
|
as_bad_where (fixp->fx_file, fixp->fx_line,
|
as_bad_where (fixp->fx_file, fixp->fx_line,
|
"Relocation cannot be done when using -mrelocatable");
|
"Relocation cannot be done when using -mrelocatable");
|
}
|
}
|
return;
|
return;
|
default:
|
default:
|
break;
|
break;
|
}
|
}
|
}
|
}
|
#endif /* OBJ_ELF */
|
#endif /* OBJ_ELF */
|
|
|
|
|
#define LITERAL_POOL_SUPPORT
|
#define LITERAL_POOL_SUPPORT
|
#ifdef LITERAL_POOL_SUPPORT
|
#ifdef LITERAL_POOL_SUPPORT
|
/* Provide support for literal pools within the text section.
|
/* Provide support for literal pools within the text section.
|
Loosely based on similar code from tc-arm.c.
|
Loosely based on similar code from tc-arm.c.
|
We will use four symbols to locate four parts of the literal pool.
|
We will use four symbols to locate four parts of the literal pool.
|
These four sections contain 64,32,16 and 8-bit constants; we use
|
These four sections contain 64,32,16 and 8-bit constants; we use
|
four sections so that all memory access can be appropriately aligned.
|
four sections so that all memory access can be appropriately aligned.
|
That is, we want to avoid mixing these together so that we don't
|
That is, we want to avoid mixing these together so that we don't
|
waste space padding out to alignments. The four pointers
|
waste space padding out to alignments. The four pointers
|
longlong_poolP, word_poolP, etc. point to a symbol labeling the
|
longlong_poolP, word_poolP, etc. point to a symbol labeling the
|
start of each pool part.
|
start of each pool part.
|
|
|
lit_pool_num increments from zero to infinity and uniquely id's
|
lit_pool_num increments from zero to infinity and uniquely id's
|
-- its used to generate the *_poolP symbol name. */
|
-- its used to generate the *_poolP symbol name. */
|
|
|
#define MAX_LITERAL_POOL_SIZE 1024
|
#define MAX_LITERAL_POOL_SIZE 1024
|
|
|
typedef struct literalS
|
typedef struct literalS
|
{
|
{
|
struct expressionS exp;
|
struct expressionS exp;
|
char * sym_name;
|
char * sym_name;
|
char size; /* 1,2,4 or 8 */
|
char size; /* 1,2,4 or 8 */
|
short offset;
|
short offset;
|
} literalT;
|
} literalT;
|
|
|
literalT literals[MAX_LITERAL_POOL_SIZE];
|
literalT literals[MAX_LITERAL_POOL_SIZE];
|
int next_literal_pool_place = 0; /* Next free entry in the pool. */
|
int next_literal_pool_place = 0; /* Next free entry in the pool. */
|
|
|
static symbolS *longlong_poolP = NULL; /* 64-bit pool entries. */
|
static symbolS *longlong_poolP = NULL; /* 64-bit pool entries. */
|
static symbolS *word_poolP = NULL; /* 32-bit pool entries. */
|
static symbolS *word_poolP = NULL; /* 32-bit pool entries. */
|
static symbolS *short_poolP = NULL; /* 16-bit pool entries. */
|
static symbolS *short_poolP = NULL; /* 16-bit pool entries. */
|
static symbolS *byte_poolP = NULL; /* 8-bit pool entries. */
|
static symbolS *byte_poolP = NULL; /* 8-bit pool entries. */
|
|
|
static int lit_pool_num = 1;
|
static int lit_pool_num = 1;
|
|
|
/* Create a new, empty symbol. */
|
/* Create a new, empty symbol. */
|
static symbolS *
|
static symbolS *
|
symbol_make_empty (void)
|
symbol_make_empty (void)
|
{
|
{
|
return symbol_create (FAKE_LABEL_NAME, undefined_section,
|
return symbol_create (FAKE_LABEL_NAME, undefined_section,
|
(valueT) 0, &zero_address_frag);
|
(valueT) 0, &zero_address_frag);
|
}
|
}
|
|
|
/* Make the first argument an address-relative expression
|
/* Make the first argument an address-relative expression
|
by subtracting the second argument. */
|
by subtracting the second argument. */
|
|
|
static void
|
static void
|
i370_make_relative (expressionS *exx, expressionS *baseaddr)
|
i370_make_relative (expressionS *exx, expressionS *baseaddr)
|
{
|
{
|
if (O_constant == baseaddr->X_op)
|
if (O_constant == baseaddr->X_op)
|
{
|
{
|
exx->X_op = O_symbol;
|
exx->X_op = O_symbol;
|
exx->X_add_number -= baseaddr->X_add_number;
|
exx->X_add_number -= baseaddr->X_add_number;
|
}
|
}
|
else if (O_symbol == baseaddr->X_op)
|
else if (O_symbol == baseaddr->X_op)
|
{
|
{
|
exx->X_op = O_subtract;
|
exx->X_op = O_subtract;
|
exx->X_op_symbol = baseaddr->X_add_symbol;
|
exx->X_op_symbol = baseaddr->X_add_symbol;
|
exx->X_add_number -= baseaddr->X_add_number;
|
exx->X_add_number -= baseaddr->X_add_number;
|
}
|
}
|
else if (O_uminus == baseaddr->X_op)
|
else if (O_uminus == baseaddr->X_op)
|
{
|
{
|
exx->X_op = O_add;
|
exx->X_op = O_add;
|
exx->X_op_symbol = baseaddr->X_add_symbol;
|
exx->X_op_symbol = baseaddr->X_add_symbol;
|
exx->X_add_number += baseaddr->X_add_number;
|
exx->X_add_number += baseaddr->X_add_number;
|
}
|
}
|
else
|
else
|
as_bad ("Missing or bad .using directive");
|
as_bad ("Missing or bad .using directive");
|
}
|
}
|
/* Add an expression to the literal pool. */
|
/* Add an expression to the literal pool. */
|
|
|
static void
|
static void
|
add_to_lit_pool (expressionS *exx, char *name, int sz)
|
add_to_lit_pool (expressionS *exx, char *name, int sz)
|
{
|
{
|
int lit_count = 0;
|
int lit_count = 0;
|
int offset_in_pool = 0;
|
int offset_in_pool = 0;
|
|
|
/* Start a new pool, if necessary. */
|
/* Start a new pool, if necessary. */
|
if (8 == sz && NULL == longlong_poolP)
|
if (8 == sz && NULL == longlong_poolP)
|
longlong_poolP = symbol_make_empty ();
|
longlong_poolP = symbol_make_empty ();
|
else if (4 == sz && NULL == word_poolP)
|
else if (4 == sz && NULL == word_poolP)
|
word_poolP = symbol_make_empty ();
|
word_poolP = symbol_make_empty ();
|
else if (2 == sz && NULL == short_poolP)
|
else if (2 == sz && NULL == short_poolP)
|
short_poolP = symbol_make_empty ();
|
short_poolP = symbol_make_empty ();
|
else if (1 == sz && NULL == byte_poolP)
|
else if (1 == sz && NULL == byte_poolP)
|
byte_poolP = symbol_make_empty ();
|
byte_poolP = symbol_make_empty ();
|
|
|
/* Check if this literal value is already in the pool.
|
/* Check if this literal value is already in the pool.
|
FIXME: We should probably be checking expressions
|
FIXME: We should probably be checking expressions
|
of type O_symbol as well.
|
of type O_symbol as well.
|
FIXME: This is probably(certainly?) broken for O_big,
|
FIXME: This is probably(certainly?) broken for O_big,
|
which includes 64-bit long-longs. */
|
which includes 64-bit long-longs. */
|
while (lit_count < next_literal_pool_place)
|
while (lit_count < next_literal_pool_place)
|
{
|
{
|
if (exx->X_op == O_constant
|
if (exx->X_op == O_constant
|
&& literals[lit_count].exp.X_op == exx->X_op
|
&& literals[lit_count].exp.X_op == exx->X_op
|
&& literals[lit_count].exp.X_add_number == exx->X_add_number
|
&& literals[lit_count].exp.X_add_number == exx->X_add_number
|
&& literals[lit_count].exp.X_unsigned == exx->X_unsigned
|
&& literals[lit_count].exp.X_unsigned == exx->X_unsigned
|
&& literals[lit_count].size == sz)
|
&& literals[lit_count].size == sz)
|
break;
|
break;
|
else if (literals[lit_count].sym_name
|
else if (literals[lit_count].sym_name
|
&& name
|
&& name
|
&& !strcmp (name, literals[lit_count].sym_name))
|
&& !strcmp (name, literals[lit_count].sym_name))
|
break;
|
break;
|
if (sz == literals[lit_count].size)
|
if (sz == literals[lit_count].size)
|
offset_in_pool += sz;
|
offset_in_pool += sz;
|
lit_count ++;
|
lit_count ++;
|
}
|
}
|
|
|
if (lit_count == next_literal_pool_place) /* new entry */
|
if (lit_count == next_literal_pool_place) /* new entry */
|
{
|
{
|
if (next_literal_pool_place > MAX_LITERAL_POOL_SIZE)
|
if (next_literal_pool_place > MAX_LITERAL_POOL_SIZE)
|
as_bad ("Literal Pool Overflow");
|
as_bad ("Literal Pool Overflow");
|
|
|
literals[next_literal_pool_place].exp = *exx;
|
literals[next_literal_pool_place].exp = *exx;
|
literals[next_literal_pool_place].size = sz;
|
literals[next_literal_pool_place].size = sz;
|
literals[next_literal_pool_place].offset = offset_in_pool;
|
literals[next_literal_pool_place].offset = offset_in_pool;
|
if (name)
|
if (name)
|
literals[next_literal_pool_place].sym_name = strdup (name);
|
literals[next_literal_pool_place].sym_name = strdup (name);
|
else
|
else
|
literals[next_literal_pool_place].sym_name = NULL;
|
literals[next_literal_pool_place].sym_name = NULL;
|
next_literal_pool_place++;
|
next_literal_pool_place++;
|
}
|
}
|
|
|
/* ???_poolP points to the beginning of the literal pool.
|
/* ???_poolP points to the beginning of the literal pool.
|
X_add_number is the offset from the beginning of the
|
X_add_number is the offset from the beginning of the
|
literal pool to this expr minus the location of the most
|
literal pool to this expr minus the location of the most
|
recent .using directive. Thus, the grand total value of the
|
recent .using directive. Thus, the grand total value of the
|
expression is the distance from .using to the literal. */
|
expression is the distance from .using to the literal. */
|
if (8 == sz)
|
if (8 == sz)
|
exx->X_add_symbol = longlong_poolP;
|
exx->X_add_symbol = longlong_poolP;
|
else if (4 == sz)
|
else if (4 == sz)
|
exx->X_add_symbol = word_poolP;
|
exx->X_add_symbol = word_poolP;
|
else if (2 == sz)
|
else if (2 == sz)
|
exx->X_add_symbol = short_poolP;
|
exx->X_add_symbol = short_poolP;
|
else if (1 == sz)
|
else if (1 == sz)
|
exx->X_add_symbol = byte_poolP;
|
exx->X_add_symbol = byte_poolP;
|
exx->X_add_number = offset_in_pool;
|
exx->X_add_number = offset_in_pool;
|
exx->X_op_symbol = NULL;
|
exx->X_op_symbol = NULL;
|
|
|
/* If the user has set up a base reg in another section,
|
/* If the user has set up a base reg in another section,
|
use that; otherwise use the text section. */
|
use that; otherwise use the text section. */
|
if (0 < i370_using_other_regno)
|
if (0 < i370_using_other_regno)
|
i370_make_relative (exx, &i370_using_other_baseaddr);
|
i370_make_relative (exx, &i370_using_other_baseaddr);
|
else
|
else
|
i370_make_relative (exx, &i370_using_text_baseaddr);
|
i370_make_relative (exx, &i370_using_text_baseaddr);
|
}
|
}
|
|
|
/* The symbol setup for the literal pool is done in two steps. First,
|
/* The symbol setup for the literal pool is done in two steps. First,
|
a symbol that represents the start of the literal pool is created,
|
a symbol that represents the start of the literal pool is created,
|
above, in the add_to_pool() routine. This sym ???_poolP.
|
above, in the add_to_pool() routine. This sym ???_poolP.
|
However, we don't know what fragment its in until a bit later.
|
However, we don't know what fragment its in until a bit later.
|
So we defer the frag_now thing, and the symbol name, until .ltorg time. */
|
So we defer the frag_now thing, and the symbol name, until .ltorg time. */
|
|
|
/* Can't use symbol_new here, so have to create a symbol and then at
|
/* Can't use symbol_new here, so have to create a symbol and then at
|
a later date assign it a value. Thats what these functions do. */
|
a later date assign it a value. Thats what these functions do. */
|
|
|
static void
|
static void
|
symbol_locate (symbolS *symbolP,
|
symbol_locate (symbolS *symbolP,
|
const char *name, /* It is copied, the caller can modify. */
|
const char *name, /* It is copied, the caller can modify. */
|
segT segment, /* Segment identifier (SEG_<something>). */
|
segT segment, /* Segment identifier (SEG_<something>). */
|
valueT valu, /* Symbol value. */
|
valueT valu, /* Symbol value. */
|
fragS *frag) /* Associated fragment. */
|
fragS *frag) /* Associated fragment. */
|
{
|
{
|
size_t name_length;
|
size_t name_length;
|
char *preserved_copy_of_name;
|
char *preserved_copy_of_name;
|
|
|
name_length = strlen (name) + 1; /* +1 for \0 */
|
name_length = strlen (name) + 1; /* +1 for \0 */
|
obstack_grow (¬es, name, name_length);
|
obstack_grow (¬es, name, name_length);
|
preserved_copy_of_name = obstack_finish (¬es);
|
preserved_copy_of_name = obstack_finish (¬es);
|
|
|
S_SET_NAME (symbolP, preserved_copy_of_name);
|
S_SET_NAME (symbolP, preserved_copy_of_name);
|
|
|
S_SET_SEGMENT (symbolP, segment);
|
S_SET_SEGMENT (symbolP, segment);
|
S_SET_VALUE (symbolP, valu);
|
S_SET_VALUE (symbolP, valu);
|
symbol_clear_list_pointers (symbolP);
|
symbol_clear_list_pointers (symbolP);
|
|
|
symbol_set_frag (symbolP, frag);
|
symbol_set_frag (symbolP, frag);
|
|
|
/* Link to end of symbol chain. */
|
/* Link to end of symbol chain. */
|
{
|
{
|
extern int symbol_table_frozen;
|
extern int symbol_table_frozen;
|
|
|
if (symbol_table_frozen)
|
if (symbol_table_frozen)
|
abort ();
|
abort ();
|
}
|
}
|
|
|
symbol_append (symbolP, symbol_lastP, &symbol_rootP, &symbol_lastP);
|
symbol_append (symbolP, symbol_lastP, &symbol_rootP, &symbol_lastP);
|
|
|
obj_symbol_new_hook (symbolP);
|
obj_symbol_new_hook (symbolP);
|
|
|
#ifdef tc_symbol_new_hook
|
#ifdef tc_symbol_new_hook
|
tc_symbol_new_hook (symbolP);
|
tc_symbol_new_hook (symbolP);
|
#endif
|
#endif
|
|
|
#define DEBUG_SYMS
|
#define DEBUG_SYMS
|
#ifdef DEBUG_SYMS
|
#ifdef DEBUG_SYMS
|
verify_symbol_chain(symbol_rootP, symbol_lastP);
|
verify_symbol_chain(symbol_rootP, symbol_lastP);
|
#endif /* DEBUG_SYMS */
|
#endif /* DEBUG_SYMS */
|
}
|
}
|
|
|
/* i370_addr_offset() will convert operand expressions
|
/* i370_addr_offset() will convert operand expressions
|
that appear to be absolute into thier base-register
|
that appear to be absolute into thier base-register
|
relative form. These expressions come in two types:
|
relative form. These expressions come in two types:
|
|
|
(1) of the form "* + const" * where "*" means
|
(1) of the form "* + const" * where "*" means
|
relative offset since the last using
|
relative offset since the last using
|
i.e. "*" means ".-using_baseaddr"
|
i.e. "*" means ".-using_baseaddr"
|
|
|
(2) labels, which are never absolute, but are always
|
(2) labels, which are never absolute, but are always
|
relative to the last "using". Anything with an alpha
|
relative to the last "using". Anything with an alpha
|
character is considered to be a label (since symbols
|
character is considered to be a label (since symbols
|
can never be operands), and since we've already handled
|
can never be operands), and since we've already handled
|
register operands. For example, "BL .L33" branch low
|
register operands. For example, "BL .L33" branch low
|
to .L33 RX form insn frequently terminates for-loops. */
|
to .L33 RX form insn frequently terminates for-loops. */
|
|
|
static bfd_boolean
|
static bfd_boolean
|
i370_addr_offset (expressionS *exx)
|
i370_addr_offset (expressionS *exx)
|
{
|
{
|
char *dot, *lab;
|
char *dot, *lab;
|
int islabel = 0;
|
int islabel = 0;
|
int all_digits = 0;
|
int all_digits = 0;
|
|
|
/* Search for a label; anything with an alpha char will do.
|
/* Search for a label; anything with an alpha char will do.
|
Local labels consist of N digits followed by either b or f. */
|
Local labels consist of N digits followed by either b or f. */
|
lab = input_line_pointer;
|
lab = input_line_pointer;
|
while (*lab && (',' != *lab) && ('(' != *lab))
|
while (*lab && (',' != *lab) && ('(' != *lab))
|
{
|
{
|
if (ISDIGIT (*lab))
|
if (ISDIGIT (*lab))
|
all_digits = 1;
|
all_digits = 1;
|
else if (ISALPHA (*lab))
|
else if (ISALPHA (*lab))
|
{
|
{
|
if (!all_digits)
|
if (!all_digits)
|
{
|
{
|
islabel = 1;
|
islabel = 1;
|
break;
|
break;
|
}
|
}
|
else if (('f' == *lab) || ('b' == *lab))
|
else if (('f' == *lab) || ('b' == *lab))
|
{
|
{
|
islabel = 1;
|
islabel = 1;
|
break;
|
break;
|
}
|
}
|
if (all_digits)
|
if (all_digits)
|
break;
|
break;
|
}
|
}
|
else if ('.' != *lab)
|
else if ('.' != *lab)
|
break;
|
break;
|
++lab;
|
++lab;
|
}
|
}
|
|
|
/* See if operand has a * in it. */
|
/* See if operand has a * in it. */
|
dot = strchr (input_line_pointer, '*');
|
dot = strchr (input_line_pointer, '*');
|
|
|
if (!dot && !islabel)
|
if (!dot && !islabel)
|
return FALSE;
|
return FALSE;
|
|
|
/* Replace * with . and let expr munch on it. */
|
/* Replace * with . and let expr munch on it. */
|
if (dot)
|
if (dot)
|
*dot = '.';
|
*dot = '.';
|
expression (exx);
|
expression (exx);
|
|
|
/* OK, now we have to subtract the "using" location.
|
/* OK, now we have to subtract the "using" location.
|
Normally branches appear in the text section only. */
|
Normally branches appear in the text section only. */
|
if (0 == strncmp (now_seg->name, ".text", 5) || 0 > i370_using_other_regno)
|
if (0 == strncmp (now_seg->name, ".text", 5) || 0 > i370_using_other_regno)
|
i370_make_relative (exx, &i370_using_text_baseaddr);
|
i370_make_relative (exx, &i370_using_text_baseaddr);
|
else
|
else
|
i370_make_relative (exx, &i370_using_other_baseaddr);
|
i370_make_relative (exx, &i370_using_other_baseaddr);
|
|
|
/* Put the * back. */
|
/* Put the * back. */
|
if (dot)
|
if (dot)
|
*dot = '*';
|
*dot = '*';
|
|
|
return TRUE;
|
return TRUE;
|
}
|
}
|
|
|
/* Handle address constants of various sorts. */
|
/* Handle address constants of various sorts. */
|
/* The currently supported types are
|
/* The currently supported types are
|
=A(some_symb)
|
=A(some_symb)
|
=V(some_extern)
|
=V(some_extern)
|
=X'deadbeef' hexadecimal
|
=X'deadbeef' hexadecimal
|
=F'1234' 32-bit const int
|
=F'1234' 32-bit const int
|
=H'1234' 16-bit const int. */
|
=H'1234' 16-bit const int. */
|
|
|
static bfd_boolean
|
static bfd_boolean
|
i370_addr_cons (expressionS *exp)
|
i370_addr_cons (expressionS *exp)
|
{
|
{
|
char *name;
|
char *name;
|
char *sym_name, delim;
|
char *sym_name, delim;
|
int name_len;
|
int name_len;
|
int hex_len = 0;
|
int hex_len = 0;
|
int cons_len = 0;
|
int cons_len = 0;
|
|
|
name = input_line_pointer;
|
name = input_line_pointer;
|
sym_name = input_line_pointer;
|
sym_name = input_line_pointer;
|
/* Find the spelling of the operand. */
|
/* Find the spelling of the operand. */
|
if (name[0] == '=' && ISALPHA (name[1]))
|
if (name[0] == '=' && ISALPHA (name[1]))
|
name = ++input_line_pointer;
|
name = ++input_line_pointer;
|
else
|
else
|
return FALSE;
|
return FALSE;
|
|
|
switch (name[0])
|
switch (name[0])
|
{
|
{
|
case 'A': /* A == address-of. */
|
case 'A': /* A == address-of. */
|
case 'V': /* V == extern. */
|
case 'V': /* V == extern. */
|
++input_line_pointer;
|
++input_line_pointer;
|
expression (exp);
|
expression (exp);
|
|
|
/* We use a simple string name to collapse together
|
/* We use a simple string name to collapse together
|
multiple refrences to the same address literal. */
|
multiple refrences to the same address literal. */
|
name_len = strcspn (sym_name, ", ");
|
name_len = strcspn (sym_name, ", ");
|
delim = *(sym_name + name_len);
|
delim = *(sym_name + name_len);
|
*(sym_name + name_len) = 0x0;
|
*(sym_name + name_len) = 0x0;
|
add_to_lit_pool (exp, sym_name, 4);
|
add_to_lit_pool (exp, sym_name, 4);
|
*(sym_name + name_len) = delim;
|
*(sym_name + name_len) = delim;
|
|
|
break;
|
break;
|
case 'H':
|
case 'H':
|
case 'F':
|
case 'F':
|
case 'X':
|
case 'X':
|
case 'E': /* Single-precision float point. */
|
case 'E': /* Single-precision float point. */
|
case 'D': /* Double-precision float point. */
|
case 'D': /* Double-precision float point. */
|
|
|
/* H == 16-bit fixed-point const; expression must be const. */
|
/* H == 16-bit fixed-point const; expression must be const. */
|
/* F == fixed-point const; expression must be const. */
|
/* F == fixed-point const; expression must be const. */
|
/* X == fixed-point const; expression must be const. */
|
/* X == fixed-point const; expression must be const. */
|
if ('H' == name[0]) cons_len = 2;
|
if ('H' == name[0]) cons_len = 2;
|
else if ('F' == name[0]) cons_len = 4;
|
else if ('F' == name[0]) cons_len = 4;
|
else if ('X' == name[0]) cons_len = -1;
|
else if ('X' == name[0]) cons_len = -1;
|
else if ('E' == name[0]) cons_len = 4;
|
else if ('E' == name[0]) cons_len = 4;
|
else if ('D' == name[0]) cons_len = 8;
|
else if ('D' == name[0]) cons_len = 8;
|
|
|
/* Extract length, if it is present;
|
/* Extract length, if it is present;
|
FIXME: assume single-digit length. */
|
FIXME: assume single-digit length. */
|
if ('L' == name[1])
|
if ('L' == name[1])
|
{
|
{
|
/* Should work for ASCII and EBCDIC. */
|
/* Should work for ASCII and EBCDIC. */
|
cons_len = name[2] - '0';
|
cons_len = name[2] - '0';
|
input_line_pointer += 2;
|
input_line_pointer += 2;
|
}
|
}
|
|
|
++input_line_pointer;
|
++input_line_pointer;
|
|
|
/* Get rid of pesky quotes. */
|
/* Get rid of pesky quotes. */
|
if ('\'' == *input_line_pointer)
|
if ('\'' == *input_line_pointer)
|
{
|
{
|
char * close;
|
char * close;
|
++input_line_pointer;
|
++input_line_pointer;
|
close = strchr (input_line_pointer, '\'');
|
close = strchr (input_line_pointer, '\'');
|
if (close)
|
if (close)
|
*close= ' ';
|
*close= ' ';
|
else
|
else
|
as_bad ("missing end-quote");
|
as_bad ("missing end-quote");
|
}
|
}
|
if ('\"' == *input_line_pointer)
|
if ('\"' == *input_line_pointer)
|
{
|
{
|
char * close;
|
char * close;
|
++input_line_pointer;
|
++input_line_pointer;
|
close = strchr (input_line_pointer, '\"');
|
close = strchr (input_line_pointer, '\"');
|
if (close)
|
if (close)
|
*close= ' ';
|
*close= ' ';
|
else
|
else
|
as_bad ("missing end-quote");
|
as_bad ("missing end-quote");
|
}
|
}
|
if (('X' == name[0]) || ('E' == name[0]) || ('D' == name[0]))
|
if (('X' == name[0]) || ('E' == name[0]) || ('D' == name[0]))
|
{
|
{
|
char tmp[50];
|
char tmp[50];
|
char *save;
|
char *save;
|
|
|
/* The length of hex constants is specified directly with L,
|
/* The length of hex constants is specified directly with L,
|
or implied through the number of hex digits. For example:
|
or implied through the number of hex digits. For example:
|
=X'AB' one byte
|
=X'AB' one byte
|
=X'abcd' two bytes
|
=X'abcd' two bytes
|
=X'000000AB' four bytes
|
=X'000000AB' four bytes
|
=XL4'AB' four bytes, left-padded withn zero. */
|
=XL4'AB' four bytes, left-padded withn zero. */
|
if (('X' == name[0]) && (0 > cons_len))
|
if (('X' == name[0]) && (0 > cons_len))
|
{
|
{
|
save = input_line_pointer;
|
save = input_line_pointer;
|
while (*save)
|
while (*save)
|
{
|
{
|
if (ISXDIGIT (*save))
|
if (ISXDIGIT (*save))
|
hex_len++;
|
hex_len++;
|
save++;
|
save++;
|
}
|
}
|
cons_len = (hex_len+1) /2;
|
cons_len = (hex_len+1) /2;
|
}
|
}
|
/* I believe this works even for =XL8'dada0000beeebaaa'
|
/* I believe this works even for =XL8'dada0000beeebaaa'
|
which should parse out to X_op == O_big
|
which should parse out to X_op == O_big
|
Note that floats and doubles get represented as
|
Note that floats and doubles get represented as
|
0d3.14159265358979 or 0f 2.7. */
|
0d3.14159265358979 or 0f 2.7. */
|
tmp[0] = '0';
|
tmp[0] = '0';
|
tmp[1] = name[0];
|
tmp[1] = name[0];
|
tmp[2] = 0;
|
tmp[2] = 0;
|
strcat (tmp, input_line_pointer);
|
strcat (tmp, input_line_pointer);
|
save = input_line_pointer;
|
save = input_line_pointer;
|
input_line_pointer = tmp;
|
input_line_pointer = tmp;
|
expression (exp);
|
expression (exp);
|
input_line_pointer = save + (input_line_pointer-tmp-2);
|
input_line_pointer = save + (input_line_pointer-tmp-2);
|
|
|
/* Fix up lengths for floats and doubles. */
|
/* Fix up lengths for floats and doubles. */
|
if (O_big == exp->X_op)
|
if (O_big == exp->X_op)
|
exp->X_add_number = cons_len / CHARS_PER_LITTLENUM;
|
exp->X_add_number = cons_len / CHARS_PER_LITTLENUM;
|
}
|
}
|
else
|
else
|
expression (exp);
|
expression (exp);
|
|
|
/* O_big occurs when more than 4 bytes worth gets parsed. */
|
/* O_big occurs when more than 4 bytes worth gets parsed. */
|
if ((exp->X_op != O_constant) && (exp->X_op != O_big))
|
if ((exp->X_op != O_constant) && (exp->X_op != O_big))
|
{
|
{
|
as_bad ("expression not a constant");
|
as_bad ("expression not a constant");
|
return FALSE;
|
return FALSE;
|
}
|
}
|
add_to_lit_pool (exp, 0x0, cons_len);
|
add_to_lit_pool (exp, 0x0, cons_len);
|
break;
|
break;
|
|
|
default:
|
default:
|
as_bad ("Unknown/unsupported address literal type");
|
as_bad ("Unknown/unsupported address literal type");
|
return FALSE;
|
return FALSE;
|
}
|
}
|
|
|
return TRUE;
|
return TRUE;
|
}
|
}
|
|
|
|
|
/* Dump the contents of the literal pool that we've accumulated so far.
|
/* Dump the contents of the literal pool that we've accumulated so far.
|
This aligns the pool to the size of the largest literal in the pool. */
|
This aligns the pool to the size of the largest literal in the pool. */
|
|
|
static void
|
static void
|
i370_ltorg (int ignore ATTRIBUTE_UNUSED)
|
i370_ltorg (int ignore ATTRIBUTE_UNUSED)
|
{
|
{
|
int litsize;
|
int litsize;
|
int lit_count = 0;
|
int lit_count = 0;
|
int biggest_literal_size = 0;
|
int biggest_literal_size = 0;
|
int biggest_align = 0;
|
int biggest_align = 0;
|
char pool_name[20];
|
char pool_name[20];
|
|
|
if (strncmp (now_seg->name, ".text", 5))
|
if (strncmp (now_seg->name, ".text", 5))
|
{
|
{
|
if (i370_other_section == undefined_section)
|
if (i370_other_section == undefined_section)
|
as_bad (".ltorg without prior .using in section %s",
|
as_bad (".ltorg without prior .using in section %s",
|
now_seg->name);
|
now_seg->name);
|
|
|
if (i370_other_section != now_seg)
|
if (i370_other_section != now_seg)
|
as_bad (".ltorg in section %s paired to .using in section %s",
|
as_bad (".ltorg in section %s paired to .using in section %s",
|
now_seg->name, i370_other_section->name);
|
now_seg->name, i370_other_section->name);
|
}
|
}
|
|
|
if (! longlong_poolP
|
if (! longlong_poolP
|
&& ! word_poolP
|
&& ! word_poolP
|
&& ! short_poolP
|
&& ! short_poolP
|
&& ! byte_poolP)
|
&& ! byte_poolP)
|
/* Nothing to do. */
|
/* Nothing to do. */
|
return;
|
return;
|
|
|
/* Find largest literal .. 2 4 or 8. */
|
/* Find largest literal .. 2 4 or 8. */
|
lit_count = 0;
|
lit_count = 0;
|
while (lit_count < next_literal_pool_place)
|
while (lit_count < next_literal_pool_place)
|
{
|
{
|
if (biggest_literal_size < literals[lit_count].size)
|
if (biggest_literal_size < literals[lit_count].size)
|
biggest_literal_size = literals[lit_count].size;
|
biggest_literal_size = literals[lit_count].size;
|
lit_count ++;
|
lit_count ++;
|
}
|
}
|
if (1 == biggest_literal_size) biggest_align = 0;
|
if (1 == biggest_literal_size) biggest_align = 0;
|
else if (2 == biggest_literal_size) biggest_align = 1;
|
else if (2 == biggest_literal_size) biggest_align = 1;
|
else if (4 == biggest_literal_size) biggest_align = 2;
|
else if (4 == biggest_literal_size) biggest_align = 2;
|
else if (8 == biggest_literal_size) biggest_align = 3;
|
else if (8 == biggest_literal_size) biggest_align = 3;
|
else as_bad ("bad alignment of %d bytes in literal pool", biggest_literal_size);
|
else as_bad ("bad alignment of %d bytes in literal pool", biggest_literal_size);
|
if (0 == biggest_align) biggest_align = 1;
|
if (0 == biggest_align) biggest_align = 1;
|
|
|
/* Align pool for short, word, double word accesses. */
|
/* Align pool for short, word, double word accesses. */
|
frag_align (biggest_align, 0, 0);
|
frag_align (biggest_align, 0, 0);
|
record_alignment (now_seg, biggest_align);
|
record_alignment (now_seg, biggest_align);
|
|
|
/* Note that the gas listing will print only the first five
|
/* Note that the gas listing will print only the first five
|
entries in the pool .... wonder how to make it print more. */
|
entries in the pool .... wonder how to make it print more. */
|
/* Output largest literals first, then the smaller ones. */
|
/* Output largest literals first, then the smaller ones. */
|
for (litsize=8; litsize; litsize /=2)
|
for (litsize=8; litsize; litsize /=2)
|
{
|
{
|
symbolS *current_poolP = NULL;
|
symbolS *current_poolP = NULL;
|
switch (litsize)
|
switch (litsize)
|
{
|
{
|
case 8:
|
case 8:
|
current_poolP = longlong_poolP; break;
|
current_poolP = longlong_poolP; break;
|
case 4:
|
case 4:
|
current_poolP = word_poolP; break;
|
current_poolP = word_poolP; break;
|
case 2:
|
case 2:
|
current_poolP = short_poolP; break;
|
current_poolP = short_poolP; break;
|
case 1:
|
case 1:
|
current_poolP = byte_poolP; break;
|
current_poolP = byte_poolP; break;
|
default:
|
default:
|
as_bad ("bad literal size\n");
|
as_bad ("bad literal size\n");
|
}
|
}
|
if (NULL == current_poolP)
|
if (NULL == current_poolP)
|
continue;
|
continue;
|
sprintf (pool_name, ".LITP%01d%06d", litsize, lit_pool_num);
|
sprintf (pool_name, ".LITP%01d%06d", litsize, lit_pool_num);
|
symbol_locate (current_poolP, pool_name, now_seg,
|
symbol_locate (current_poolP, pool_name, now_seg,
|
(valueT) frag_now_fix (), frag_now);
|
(valueT) frag_now_fix (), frag_now);
|
symbol_table_insert (current_poolP);
|
symbol_table_insert (current_poolP);
|
|
|
lit_count = 0;
|
lit_count = 0;
|
while (lit_count < next_literal_pool_place)
|
while (lit_count < next_literal_pool_place)
|
{
|
{
|
if (litsize == literals[lit_count].size)
|
if (litsize == literals[lit_count].size)
|
{
|
{
|
#define EMIT_ADDR_CONS_SYMBOLS
|
#define EMIT_ADDR_CONS_SYMBOLS
|
#ifdef EMIT_ADDR_CONS_SYMBOLS
|
#ifdef EMIT_ADDR_CONS_SYMBOLS
|
/* Create a bogus symbol, add it to the pool ...
|
/* Create a bogus symbol, add it to the pool ...
|
For the most part, I think this is a useless exercise,
|
For the most part, I think this is a useless exercise,
|
except that having these symbol names in the objects
|
except that having these symbol names in the objects
|
is vaguely useful for debugging. */
|
is vaguely useful for debugging. */
|
if (literals[lit_count].sym_name)
|
if (literals[lit_count].sym_name)
|
{
|
{
|
symbolS * symP = symbol_make_empty ();
|
symbolS * symP = symbol_make_empty ();
|
symbol_locate (symP, literals[lit_count].sym_name, now_seg,
|
symbol_locate (symP, literals[lit_count].sym_name, now_seg,
|
(valueT) frag_now_fix (), frag_now);
|
(valueT) frag_now_fix (), frag_now);
|
symbol_table_insert (symP);
|
symbol_table_insert (symP);
|
}
|
}
|
#endif /* EMIT_ADDR_CONS_SYMBOLS */
|
#endif /* EMIT_ADDR_CONS_SYMBOLS */
|
|
|
emit_expr (&(literals[lit_count].exp), literals[lit_count].size);
|
emit_expr (&(literals[lit_count].exp), literals[lit_count].size);
|
}
|
}
|
lit_count ++;
|
lit_count ++;
|
}
|
}
|
}
|
}
|
|
|
next_literal_pool_place = 0;
|
next_literal_pool_place = 0;
|
longlong_poolP = NULL;
|
longlong_poolP = NULL;
|
word_poolP = NULL;
|
word_poolP = NULL;
|
short_poolP = NULL;
|
short_poolP = NULL;
|
byte_poolP = NULL;
|
byte_poolP = NULL;
|
lit_pool_num++;
|
lit_pool_num++;
|
}
|
}
|
|
|
#endif /* LITERAL_POOL_SUPPORT */
|
#endif /* LITERAL_POOL_SUPPORT */
|
|
|
|
|
/* Add support for the HLASM-like USING directive to indicate
|
/* Add support for the HLASM-like USING directive to indicate
|
the base register to use ... we don't support the full
|
the base register to use ... we don't support the full
|
hlasm semantics for this ... we merely pluck a base address
|
hlasm semantics for this ... we merely pluck a base address
|
and a register number out. We print a warning if using is
|
and a register number out. We print a warning if using is
|
called multiple times. I suppose we should check to see
|
called multiple times. I suppose we should check to see
|
if the regno is valid. */
|
if the regno is valid. */
|
|
|
static void
|
static void
|
i370_using (int ignore ATTRIBUTE_UNUSED)
|
i370_using (int ignore ATTRIBUTE_UNUSED)
|
{
|
{
|
expressionS ex, baseaddr;
|
expressionS ex, baseaddr;
|
int iregno;
|
int iregno;
|
char *star;
|
char *star;
|
|
|
/* If "*" appears in a using, it means "."
|
/* If "*" appears in a using, it means "."
|
replace it with "." so that expr doesn't get confused. */
|
replace it with "." so that expr doesn't get confused. */
|
star = strchr (input_line_pointer, '*');
|
star = strchr (input_line_pointer, '*');
|
if (star)
|
if (star)
|
*star = '.';
|
*star = '.';
|
|
|
/* The first arg to using will usually be ".", but it can
|
/* The first arg to using will usually be ".", but it can
|
be a more complex expression too. */
|
be a more complex expression too. */
|
expression (&baseaddr);
|
expression (&baseaddr);
|
if (star)
|
if (star)
|
*star = '*';
|
*star = '*';
|
if (O_constant != baseaddr.X_op
|
if (O_constant != baseaddr.X_op
|
&& O_symbol != baseaddr.X_op
|
&& O_symbol != baseaddr.X_op
|
&& O_uminus != baseaddr.X_op)
|
&& O_uminus != baseaddr.X_op)
|
as_bad (".using: base address expression illegal or too complex");
|
as_bad (".using: base address expression illegal or too complex");
|
|
|
if (*input_line_pointer != '\0') ++input_line_pointer;
|
if (*input_line_pointer != '\0') ++input_line_pointer;
|
|
|
/* The second arg to using had better be a register. */
|
/* The second arg to using had better be a register. */
|
register_name (&ex);
|
register_name (&ex);
|
demand_empty_rest_of_line ();
|
demand_empty_rest_of_line ();
|
iregno = ex.X_add_number;
|
iregno = ex.X_add_number;
|
|
|
if (0 == strncmp (now_seg->name, ".text", 5))
|
if (0 == strncmp (now_seg->name, ".text", 5))
|
{
|
{
|
i370_using_text_baseaddr = baseaddr;
|
i370_using_text_baseaddr = baseaddr;
|
i370_using_text_regno = iregno;
|
i370_using_text_regno = iregno;
|
}
|
}
|
else
|
else
|
{
|
{
|
i370_using_other_baseaddr = baseaddr;
|
i370_using_other_baseaddr = baseaddr;
|
i370_using_other_regno = iregno;
|
i370_using_other_regno = iregno;
|
i370_other_section = now_seg;
|
i370_other_section = now_seg;
|
}
|
}
|
}
|
}
|
|
|
static void
|
static void
|
i370_drop (int ignore ATTRIBUTE_UNUSED)
|
i370_drop (int ignore ATTRIBUTE_UNUSED)
|
{
|
{
|
expressionS ex;
|
expressionS ex;
|
int iregno;
|
int iregno;
|
|
|
register_name (&ex);
|
register_name (&ex);
|
demand_empty_rest_of_line ();
|
demand_empty_rest_of_line ();
|
iregno = ex.X_add_number;
|
iregno = ex.X_add_number;
|
|
|
if (0 == strncmp (now_seg->name, ".text", 5))
|
if (0 == strncmp (now_seg->name, ".text", 5))
|
{
|
{
|
if (iregno != i370_using_text_regno)
|
if (iregno != i370_using_text_regno)
|
as_bad ("droping register %d in section %s does not match using register %d",
|
as_bad ("droping register %d in section %s does not match using register %d",
|
iregno, now_seg->name, i370_using_text_regno);
|
iregno, now_seg->name, i370_using_text_regno);
|
|
|
i370_using_text_regno = -1;
|
i370_using_text_regno = -1;
|
i370_using_text_baseaddr.X_op = O_absent;
|
i370_using_text_baseaddr.X_op = O_absent;
|
}
|
}
|
else
|
else
|
{
|
{
|
if (iregno != i370_using_other_regno)
|
if (iregno != i370_using_other_regno)
|
as_bad ("droping register %d in section %s does not match using register %d",
|
as_bad ("droping register %d in section %s does not match using register %d",
|
iregno, now_seg->name, i370_using_other_regno);
|
iregno, now_seg->name, i370_using_other_regno);
|
|
|
if (i370_other_section != now_seg)
|
if (i370_other_section != now_seg)
|
as_bad ("droping register %d in section %s previously used in section %s",
|
as_bad ("droping register %d in section %s previously used in section %s",
|
iregno, now_seg->name, i370_other_section->name);
|
iregno, now_seg->name, i370_other_section->name);
|
|
|
i370_using_other_regno = -1;
|
i370_using_other_regno = -1;
|
i370_using_other_baseaddr.X_op = O_absent;
|
i370_using_other_baseaddr.X_op = O_absent;
|
i370_other_section = undefined_section;
|
i370_other_section = undefined_section;
|
}
|
}
|
}
|
}
|
|
|
|
|
/* We need to keep a list of fixups. We can't simply generate them as
|
/* We need to keep a list of fixups. We can't simply generate them as
|
we go, because that would require us to first create the frag, and
|
we go, because that would require us to first create the frag, and
|
that would screw up references to ``.''. */
|
that would screw up references to ``.''. */
|
|
|
struct i370_fixup
|
struct i370_fixup
|
{
|
{
|
expressionS exp;
|
expressionS exp;
|
int opindex;
|
int opindex;
|
bfd_reloc_code_real_type reloc;
|
bfd_reloc_code_real_type reloc;
|
};
|
};
|
|
|
#define MAX_INSN_FIXUPS 5
|
#define MAX_INSN_FIXUPS 5
|
|
|
/* Handle a macro. Gather all the operands, transform them as
|
/* Handle a macro. Gather all the operands, transform them as
|
described by the macro, and call md_assemble recursively. All the
|
described by the macro, and call md_assemble recursively. All the
|
operands are separated by commas; we don't accept parentheses
|
operands are separated by commas; we don't accept parentheses
|
around operands here. */
|
around operands here. */
|
|
|
static void
|
static void
|
i370_macro (char *str, const struct i370_macro *macro)
|
i370_macro (char *str, const struct i370_macro *macro)
|
{
|
{
|
char *operands[10];
|
char *operands[10];
|
unsigned int count;
|
unsigned int count;
|
char *s;
|
char *s;
|
unsigned int len;
|
unsigned int len;
|
const char *format;
|
const char *format;
|
int arg;
|
int arg;
|
char *send;
|
char *send;
|
char *complete;
|
char *complete;
|
|
|
/* Gather the users operands into the operands array. */
|
/* Gather the users operands into the operands array. */
|
count = 0;
|
count = 0;
|
s = str;
|
s = str;
|
while (1)
|
while (1)
|
{
|
{
|
if (count >= sizeof operands / sizeof operands[0])
|
if (count >= sizeof operands / sizeof operands[0])
|
break;
|
break;
|
operands[count++] = s;
|
operands[count++] = s;
|
s = strchr (s, ',');
|
s = strchr (s, ',');
|
if (s == (char *) NULL)
|
if (s == (char *) NULL)
|
break;
|
break;
|
*s++ = '\0';
|
*s++ = '\0';
|
}
|
}
|
|
|
if (count != macro->operands)
|
if (count != macro->operands)
|
{
|
{
|
as_bad ("wrong number of operands");
|
as_bad ("wrong number of operands");
|
return;
|
return;
|
}
|
}
|
|
|
/* Work out how large the string must be (the size is unbounded
|
/* Work out how large the string must be (the size is unbounded
|
because it includes user input). */
|
because it includes user input). */
|
len = 0;
|
len = 0;
|
format = macro->format;
|
format = macro->format;
|
while (*format != '\0')
|
while (*format != '\0')
|
{
|
{
|
if (*format != '%')
|
if (*format != '%')
|
{
|
{
|
++len;
|
++len;
|
++format;
|
++format;
|
}
|
}
|
else
|
else
|
{
|
{
|
arg = strtol (format + 1, &send, 10);
|
arg = strtol (format + 1, &send, 10);
|
know (send != format && arg >= 0 && (unsigned) arg < count);
|
know (send != format && arg >= 0 && (unsigned) arg < count);
|
len += strlen (operands[arg]);
|
len += strlen (operands[arg]);
|
format = send;
|
format = send;
|
}
|
}
|
}
|
}
|
|
|
/* Put the string together. */
|
/* Put the string together. */
|
complete = s = alloca (len + 1);
|
complete = s = alloca (len + 1);
|
format = macro->format;
|
format = macro->format;
|
while (*format != '\0')
|
while (*format != '\0')
|
{
|
{
|
if (*format != '%')
|
if (*format != '%')
|
*s++ = *format++;
|
*s++ = *format++;
|
else
|
else
|
{
|
{
|
arg = strtol (format + 1, &send, 10);
|
arg = strtol (format + 1, &send, 10);
|
strcpy (s, operands[arg]);
|
strcpy (s, operands[arg]);
|
s += strlen (s);
|
s += strlen (s);
|
format = send;
|
format = send;
|
}
|
}
|
}
|
}
|
*s = '\0';
|
*s = '\0';
|
|
|
/* Assemble the constructed instruction. */
|
/* Assemble the constructed instruction. */
|
md_assemble (complete);
|
md_assemble (complete);
|
}
|
}
|
|
|
/* This routine is called for each instruction to be assembled. */
|
/* This routine is called for each instruction to be assembled. */
|
|
|
void
|
void
|
md_assemble (char *str)
|
md_assemble (char *str)
|
{
|
{
|
char *s, *opcode_str;
|
char *s, *opcode_str;
|
const struct i370_opcode *opcode;
|
const struct i370_opcode *opcode;
|
i370_insn_t insn;
|
i370_insn_t insn;
|
const unsigned char *opindex_ptr;
|
const unsigned char *opindex_ptr;
|
int have_optional_index, have_optional_basereg, have_optional_reg;
|
int have_optional_index, have_optional_basereg, have_optional_reg;
|
int skip_optional_index, skip_optional_basereg, skip_optional_reg;
|
int skip_optional_index, skip_optional_basereg, skip_optional_reg;
|
int use_text=0, use_other=0;
|
int use_text=0, use_other=0;
|
int off_by_one;
|
int off_by_one;
|
struct i370_fixup fixups[MAX_INSN_FIXUPS];
|
struct i370_fixup fixups[MAX_INSN_FIXUPS];
|
int fc;
|
int fc;
|
char *f;
|
char *f;
|
int i;
|
int i;
|
#ifdef OBJ_ELF
|
#ifdef OBJ_ELF
|
bfd_reloc_code_real_type reloc;
|
bfd_reloc_code_real_type reloc;
|
#endif
|
#endif
|
|
|
/* Get the opcode. */
|
/* Get the opcode. */
|
for (s = str; *s != '\0' && ! ISSPACE (*s); s++)
|
for (s = str; *s != '\0' && ! ISSPACE (*s); s++)
|
;
|
;
|
if (*s != '\0')
|
if (*s != '\0')
|
*s++ = '\0';
|
*s++ = '\0';
|
opcode_str = str;
|
opcode_str = str;
|
|
|
/* Look up the opcode in the hash table. */
|
/* Look up the opcode in the hash table. */
|
opcode = (const struct i370_opcode *) hash_find (i370_hash, str);
|
opcode = (const struct i370_opcode *) hash_find (i370_hash, str);
|
if (opcode == (const struct i370_opcode *) NULL)
|
if (opcode == (const struct i370_opcode *) NULL)
|
{
|
{
|
const struct i370_macro *macro;
|
const struct i370_macro *macro;
|
|
|
assert (i370_macro_hash);
|
assert (i370_macro_hash);
|
macro = (const struct i370_macro *) hash_find (i370_macro_hash, str);
|
macro = (const struct i370_macro *) hash_find (i370_macro_hash, str);
|
if (macro == (const struct i370_macro *) NULL)
|
if (macro == (const struct i370_macro *) NULL)
|
as_bad ("Unrecognized opcode: `%s'", str);
|
as_bad ("Unrecognized opcode: `%s'", str);
|
else
|
else
|
i370_macro (s, macro);
|
i370_macro (s, macro);
|
|
|
return;
|
return;
|
}
|
}
|
|
|
insn = opcode->opcode;
|
insn = opcode->opcode;
|
|
|
str = s;
|
str = s;
|
while (ISSPACE (*str))
|
while (ISSPACE (*str))
|
++str;
|
++str;
|
|
|
/* I370 operands are either expressions or address constants.
|
/* I370 operands are either expressions or address constants.
|
Many operand types are optional. The optional operands
|
Many operand types are optional. The optional operands
|
are always surrounded by parens, and are used to denote the base
|
are always surrounded by parens, and are used to denote the base
|
register ... e.g. "A R1, D2" or "A R1, D2(,B2) as opposed to
|
register ... e.g. "A R1, D2" or "A R1, D2(,B2) as opposed to
|
the fully-formed "A R1, D2(X2,B2)". Note also the = sign,
|
the fully-formed "A R1, D2(X2,B2)". Note also the = sign,
|
such as A R1,=A(i) where the address-of operator =A implies
|
such as A R1,=A(i) where the address-of operator =A implies
|
use of both a base register, and a missing index register.
|
use of both a base register, and a missing index register.
|
|
|
So, before we start seriously parsing the operands, we check
|
So, before we start seriously parsing the operands, we check
|
to see if we have an optional operand, and, if we do, we count
|
to see if we have an optional operand, and, if we do, we count
|
the number of commas to see which operand should be omitted. */
|
the number of commas to see which operand should be omitted. */
|
|
|
have_optional_index = have_optional_basereg = have_optional_reg = 0;
|
have_optional_index = have_optional_basereg = have_optional_reg = 0;
|
for (opindex_ptr = opcode->operands; *opindex_ptr != 0; opindex_ptr++)
|
for (opindex_ptr = opcode->operands; *opindex_ptr != 0; opindex_ptr++)
|
{
|
{
|
const struct i370_operand *operand;
|
const struct i370_operand *operand;
|
|
|
operand = &i370_operands[*opindex_ptr];
|
operand = &i370_operands[*opindex_ptr];
|
if ((operand->flags & I370_OPERAND_INDEX) != 0)
|
if ((operand->flags & I370_OPERAND_INDEX) != 0)
|
have_optional_index = 1;
|
have_optional_index = 1;
|
if ((operand->flags & I370_OPERAND_BASE) != 0)
|
if ((operand->flags & I370_OPERAND_BASE) != 0)
|
have_optional_basereg = 1;
|
have_optional_basereg = 1;
|
if ((operand->flags & I370_OPERAND_OPTIONAL) != 0)
|
if ((operand->flags & I370_OPERAND_OPTIONAL) != 0)
|
have_optional_reg = 1;
|
have_optional_reg = 1;
|
}
|
}
|
|
|
skip_optional_index = skip_optional_basereg = skip_optional_reg = 0;
|
skip_optional_index = skip_optional_basereg = skip_optional_reg = 0;
|
if (have_optional_index || have_optional_basereg)
|
if (have_optional_index || have_optional_basereg)
|
{
|
{
|
unsigned int opcount, nwanted;
|
unsigned int opcount, nwanted;
|
|
|
/* There is an optional operand. Count the number of
|
/* There is an optional operand. Count the number of
|
commas and open-parens in the input line. */
|
commas and open-parens in the input line. */
|
if (*str == '\0')
|
if (*str == '\0')
|
opcount = 0;
|
opcount = 0;
|
else
|
else
|
{
|
{
|
opcount = 1;
|
opcount = 1;
|
s = str;
|
s = str;
|
while ((s = strpbrk (s, ",(=")) != (char *) NULL)
|
while ((s = strpbrk (s, ",(=")) != (char *) NULL)
|
{
|
{
|
++opcount;
|
++opcount;
|
++s;
|
++s;
|
if (',' == *s) ++s; /* avoid counting things like (, */
|
if (',' == *s) ++s; /* avoid counting things like (, */
|
if ('=' == *s) { ++s; --opcount; }
|
if ('=' == *s) { ++s; --opcount; }
|
}
|
}
|
}
|
}
|
|
|
/* If there are fewer operands in the line then are called
|
/* If there are fewer operands in the line then are called
|
for by the instruction, we want to skip the optional
|
for by the instruction, we want to skip the optional
|
operand. */
|
operand. */
|
nwanted = strlen ((char *) opcode->operands);
|
nwanted = strlen ((char *) opcode->operands);
|
if (have_optional_index)
|
if (have_optional_index)
|
{
|
{
|
if (opcount < nwanted)
|
if (opcount < nwanted)
|
skip_optional_index = 1;
|
skip_optional_index = 1;
|
if (have_optional_basereg && ((opcount+1) < nwanted))
|
if (have_optional_basereg && ((opcount+1) < nwanted))
|
skip_optional_basereg = 1;
|
skip_optional_basereg = 1;
|
if (have_optional_reg && ((opcount+1) < nwanted))
|
if (have_optional_reg && ((opcount+1) < nwanted))
|
skip_optional_reg = 1;
|
skip_optional_reg = 1;
|
}
|
}
|
else
|
else
|
{
|
{
|
if (have_optional_basereg && (opcount < nwanted))
|
if (have_optional_basereg && (opcount < nwanted))
|
skip_optional_basereg = 1;
|
skip_optional_basereg = 1;
|
if (have_optional_reg && (opcount < nwanted))
|
if (have_optional_reg && (opcount < nwanted))
|
skip_optional_reg = 1;
|
skip_optional_reg = 1;
|
}
|
}
|
}
|
}
|
|
|
/* Perform some off-by-one hacks on the length field of certain instructions.
|
/* Perform some off-by-one hacks on the length field of certain instructions.
|
Its such a shame to have to do this, but the problem is that HLASM got
|
Its such a shame to have to do this, but the problem is that HLASM got
|
defined so that the lengths differ by one from the actual machine instructions.
|
defined so that the lengths differ by one from the actual machine instructions.
|
this code should probably be moved to a special inster-operand routine.
|
this code should probably be moved to a special inster-operand routine.
|
Sigh. Affected instructions are Compare Logical, Move and Exclusive OR
|
Sigh. Affected instructions are Compare Logical, Move and Exclusive OR
|
hack alert -- aren't *all* SS instructions affected ?? */
|
hack alert -- aren't *all* SS instructions affected ?? */
|
off_by_one = 0;
|
off_by_one = 0;
|
if (0 == strcasecmp ("CLC", opcode->name)
|
if (0 == strcasecmp ("CLC", opcode->name)
|
|| 0 == strcasecmp ("ED", opcode->name)
|
|| 0 == strcasecmp ("ED", opcode->name)
|
|| 0 == strcasecmp ("EDMK", opcode->name)
|
|| 0 == strcasecmp ("EDMK", opcode->name)
|
|| 0 == strcasecmp ("MVC", opcode->name)
|
|| 0 == strcasecmp ("MVC", opcode->name)
|
|| 0 == strcasecmp ("MVCIN", opcode->name)
|
|| 0 == strcasecmp ("MVCIN", opcode->name)
|
|| 0 == strcasecmp ("MVN", opcode->name)
|
|| 0 == strcasecmp ("MVN", opcode->name)
|
|| 0 == strcasecmp ("MVZ", opcode->name)
|
|| 0 == strcasecmp ("MVZ", opcode->name)
|
|| 0 == strcasecmp ("NC", opcode->name)
|
|| 0 == strcasecmp ("NC", opcode->name)
|
|| 0 == strcasecmp ("OC", opcode->name)
|
|| 0 == strcasecmp ("OC", opcode->name)
|
|| 0 == strcasecmp ("XC", opcode->name))
|
|| 0 == strcasecmp ("XC", opcode->name))
|
off_by_one = 1;
|
off_by_one = 1;
|
|
|
/* Gather the operands. */
|
/* Gather the operands. */
|
fc = 0;
|
fc = 0;
|
for (opindex_ptr = opcode->operands; *opindex_ptr != 0; opindex_ptr++)
|
for (opindex_ptr = opcode->operands; *opindex_ptr != 0; opindex_ptr++)
|
{
|
{
|
const struct i370_operand *operand;
|
const struct i370_operand *operand;
|
const char *errmsg;
|
const char *errmsg;
|
char *hold;
|
char *hold;
|
expressionS ex;
|
expressionS ex;
|
|
|
operand = &i370_operands[*opindex_ptr];
|
operand = &i370_operands[*opindex_ptr];
|
errmsg = NULL;
|
errmsg = NULL;
|
|
|
/* If this is an index operand, and we are skipping it,
|
/* If this is an index operand, and we are skipping it,
|
just insert a zero. */
|
just insert a zero. */
|
if (skip_optional_index &&
|
if (skip_optional_index &&
|
((operand->flags & I370_OPERAND_INDEX) != 0))
|
((operand->flags & I370_OPERAND_INDEX) != 0))
|
{
|
{
|
insn = i370_insert_operand (insn, operand, 0);
|
insn = i370_insert_operand (insn, operand, 0);
|
continue;
|
continue;
|
}
|
}
|
|
|
/* If this is the base operand, and we are skipping it,
|
/* If this is the base operand, and we are skipping it,
|
just insert the current using basreg. */
|
just insert the current using basreg. */
|
if (skip_optional_basereg &&
|
if (skip_optional_basereg &&
|
((operand->flags & I370_OPERAND_BASE) != 0))
|
((operand->flags & I370_OPERAND_BASE) != 0))
|
{
|
{
|
int basereg = -1;
|
int basereg = -1;
|
if (use_text)
|
if (use_text)
|
{
|
{
|
if (0 == strncmp (now_seg->name, ".text", 5)
|
if (0 == strncmp (now_seg->name, ".text", 5)
|
|| 0 > i370_using_other_regno)
|
|| 0 > i370_using_other_regno)
|
basereg = i370_using_text_regno;
|
basereg = i370_using_text_regno;
|
else
|
else
|
basereg = i370_using_other_regno;
|
basereg = i370_using_other_regno;
|
}
|
}
|
else if (use_other)
|
else if (use_other)
|
{
|
{
|
if (0 > i370_using_other_regno)
|
if (0 > i370_using_other_regno)
|
basereg = i370_using_text_regno;
|
basereg = i370_using_text_regno;
|
else
|
else
|
basereg = i370_using_other_regno;
|
basereg = i370_using_other_regno;
|
}
|
}
|
if (0 > basereg)
|
if (0 > basereg)
|
as_bad ("not using any base register");
|
as_bad ("not using any base register");
|
|
|
insn = i370_insert_operand (insn, operand, basereg);
|
insn = i370_insert_operand (insn, operand, basereg);
|
continue;
|
continue;
|
}
|
}
|
|
|
/* If this is an optional operand, and we are skipping it,
|
/* If this is an optional operand, and we are skipping it,
|
Use zero (since a non-zero value would denote a register) */
|
Use zero (since a non-zero value would denote a register) */
|
if (skip_optional_reg
|
if (skip_optional_reg
|
&& ((operand->flags & I370_OPERAND_OPTIONAL) != 0))
|
&& ((operand->flags & I370_OPERAND_OPTIONAL) != 0))
|
{
|
{
|
insn = i370_insert_operand (insn, operand, 0);
|
insn = i370_insert_operand (insn, operand, 0);
|
continue;
|
continue;
|
}
|
}
|
|
|
/* Gather the operand. */
|
/* Gather the operand. */
|
hold = input_line_pointer;
|
hold = input_line_pointer;
|
input_line_pointer = str;
|
input_line_pointer = str;
|
|
|
/* Register names are only allowed where there are registers. */
|
/* Register names are only allowed where there are registers. */
|
if ((operand->flags & I370_OPERAND_GPR) != 0)
|
if ((operand->flags & I370_OPERAND_GPR) != 0)
|
{
|
{
|
/* Quickie hack to get past things like (,r13). */
|
/* Quickie hack to get past things like (,r13). */
|
if (skip_optional_index && (',' == *input_line_pointer))
|
if (skip_optional_index && (',' == *input_line_pointer))
|
{
|
{
|
*input_line_pointer = ' ';
|
*input_line_pointer = ' ';
|
input_line_pointer ++;
|
input_line_pointer ++;
|
}
|
}
|
|
|
if (! register_name (&ex))
|
if (! register_name (&ex))
|
as_bad ("expecting a register for operand %d",
|
as_bad ("expecting a register for operand %d",
|
(int) (opindex_ptr - opcode->operands + 1));
|
(int) (opindex_ptr - opcode->operands + 1));
|
}
|
}
|
|
|
/* Check for an address constant expression. */
|
/* Check for an address constant expression. */
|
/* We will put PSW-relative addresses in the text section,
|
/* We will put PSW-relative addresses in the text section,
|
and address literals in the .data (or other) section. */
|
and address literals in the .data (or other) section. */
|
else if (i370_addr_cons (&ex))
|
else if (i370_addr_cons (&ex))
|
use_other = 1;
|
use_other = 1;
|
else if (i370_addr_offset (&ex))
|
else if (i370_addr_offset (&ex))
|
use_text = 1;
|
use_text = 1;
|
else expression (&ex);
|
else expression (&ex);
|
|
|
str = input_line_pointer;
|
str = input_line_pointer;
|
input_line_pointer = hold;
|
input_line_pointer = hold;
|
|
|
/* Perform some off-by-one hacks on the length field of certain instructions.
|
/* Perform some off-by-one hacks on the length field of certain instructions.
|
Its such a shame to have to do this, but the problem is that HLASM got
|
Its such a shame to have to do this, but the problem is that HLASM got
|
defined so that the programmer specifies a length that is one greater
|
defined so that the programmer specifies a length that is one greater
|
than what the machine instruction wants. Sigh. */
|
than what the machine instruction wants. Sigh. */
|
if (off_by_one && (0 == strcasecmp ("SS L", operand->name)))
|
if (off_by_one && (0 == strcasecmp ("SS L", operand->name)))
|
ex.X_add_number --;
|
ex.X_add_number --;
|
|
|
if (ex.X_op == O_illegal)
|
if (ex.X_op == O_illegal)
|
as_bad ("illegal operand");
|
as_bad ("illegal operand");
|
else if (ex.X_op == O_absent)
|
else if (ex.X_op == O_absent)
|
as_bad ("missing operand");
|
as_bad ("missing operand");
|
else if (ex.X_op == O_register)
|
else if (ex.X_op == O_register)
|
insn = i370_insert_operand (insn, operand, ex.X_add_number);
|
insn = i370_insert_operand (insn, operand, ex.X_add_number);
|
else if (ex.X_op == O_constant)
|
else if (ex.X_op == O_constant)
|
{
|
{
|
#ifdef OBJ_ELF
|
#ifdef OBJ_ELF
|
/* Allow @HA, @L, @H on constants.
|
/* Allow @HA, @L, @H on constants.
|
Well actually, no we don't; there really don't make sense
|
Well actually, no we don't; there really don't make sense
|
(at least not to me) for the i370. However, this code is
|
(at least not to me) for the i370. However, this code is
|
left here for any dubious future expansion reasons. */
|
left here for any dubious future expansion reasons. */
|
char *orig_str = str;
|
char *orig_str = str;
|
|
|
if ((reloc = i370_elf_suffix (&str, &ex)) != BFD_RELOC_UNUSED)
|
if ((reloc = i370_elf_suffix (&str, &ex)) != BFD_RELOC_UNUSED)
|
switch (reloc)
|
switch (reloc)
|
{
|
{
|
default:
|
default:
|
str = orig_str;
|
str = orig_str;
|
break;
|
break;
|
|
|
case BFD_RELOC_LO16:
|
case BFD_RELOC_LO16:
|
/* X_unsigned is the default, so if the user has done
|
/* X_unsigned is the default, so if the user has done
|
something which cleared it, we always produce a
|
something which cleared it, we always produce a
|
signed value. */
|
signed value. */
|
ex.X_add_number = (((ex.X_add_number & 0xffff)
|
ex.X_add_number = (((ex.X_add_number & 0xffff)
|
^ 0x8000)
|
^ 0x8000)
|
- 0x8000);
|
- 0x8000);
|
break;
|
break;
|
|
|
case BFD_RELOC_HI16:
|
case BFD_RELOC_HI16:
|
ex.X_add_number = (ex.X_add_number >> 16) & 0xffff;
|
ex.X_add_number = (ex.X_add_number >> 16) & 0xffff;
|
break;
|
break;
|
|
|
case BFD_RELOC_HI16_S:
|
case BFD_RELOC_HI16_S:
|
ex.X_add_number = (((ex.X_add_number >> 16) & 0xffff)
|
ex.X_add_number = (((ex.X_add_number >> 16) & 0xffff)
|
+ ((ex.X_add_number >> 15) & 1));
|
+ ((ex.X_add_number >> 15) & 1));
|
break;
|
break;
|
}
|
}
|
#endif
|
#endif
|
insn = i370_insert_operand (insn, operand, ex.X_add_number);
|
insn = i370_insert_operand (insn, operand, ex.X_add_number);
|
}
|
}
|
#ifdef OBJ_ELF
|
#ifdef OBJ_ELF
|
else if ((reloc = i370_elf_suffix (&str, &ex)) != BFD_RELOC_UNUSED)
|
else if ((reloc = i370_elf_suffix (&str, &ex)) != BFD_RELOC_UNUSED)
|
{
|
{
|
as_tsktsk ("md_assemble(): suffixed relocations not supported\n");
|
as_tsktsk ("md_assemble(): suffixed relocations not supported\n");
|
|
|
/* We need to generate a fixup for this expression. */
|
/* We need to generate a fixup for this expression. */
|
if (fc >= MAX_INSN_FIXUPS)
|
if (fc >= MAX_INSN_FIXUPS)
|
as_fatal ("too many fixups");
|
as_fatal ("too many fixups");
|
fixups[fc].exp = ex;
|
fixups[fc].exp = ex;
|
fixups[fc].opindex = 0;
|
fixups[fc].opindex = 0;
|
fixups[fc].reloc = reloc;
|
fixups[fc].reloc = reloc;
|
++fc;
|
++fc;
|
}
|
}
|
#endif /* OBJ_ELF */
|
#endif /* OBJ_ELF */
|
else
|
else
|
{
|
{
|
/* We need to generate a fixup for this expression. */
|
/* We need to generate a fixup for this expression. */
|
/* Typically, the expression will just be a symbol ...
|
/* Typically, the expression will just be a symbol ...
|
printf ("insn %s needs fixup for %s \n",
|
printf ("insn %s needs fixup for %s \n",
|
opcode->name, ex.X_add_symbol->bsym->name); */
|
opcode->name, ex.X_add_symbol->bsym->name); */
|
|
|
if (fc >= MAX_INSN_FIXUPS)
|
if (fc >= MAX_INSN_FIXUPS)
|
as_fatal ("too many fixups");
|
as_fatal ("too many fixups");
|
fixups[fc].exp = ex;
|
fixups[fc].exp = ex;
|
fixups[fc].opindex = *opindex_ptr;
|
fixups[fc].opindex = *opindex_ptr;
|
fixups[fc].reloc = BFD_RELOC_UNUSED;
|
fixups[fc].reloc = BFD_RELOC_UNUSED;
|
++fc;
|
++fc;
|
}
|
}
|
|
|
/* Skip over delimiter (close paren, or comma). */
|
/* Skip over delimiter (close paren, or comma). */
|
if ((')' == *str) && (',' == *(str+1)))
|
if ((')' == *str) && (',' == *(str+1)))
|
++str;
|
++str;
|
if (*str != '\0')
|
if (*str != '\0')
|
++str;
|
++str;
|
}
|
}
|
|
|
while (ISSPACE (*str))
|
while (ISSPACE (*str))
|
++str;
|
++str;
|
|
|
if (*str != '\0')
|
if (*str != '\0')
|
as_bad ("junk at end of line: `%s'", str);
|
as_bad ("junk at end of line: `%s'", str);
|
|
|
/* Write out the instruction. */
|
/* Write out the instruction. */
|
f = frag_more (opcode->len);
|
f = frag_more (opcode->len);
|
if (4 >= opcode->len)
|
if (4 >= opcode->len)
|
md_number_to_chars (f, insn.i[0], opcode->len);
|
md_number_to_chars (f, insn.i[0], opcode->len);
|
else
|
else
|
{
|
{
|
md_number_to_chars (f, insn.i[0], 4);
|
md_number_to_chars (f, insn.i[0], 4);
|
|
|
if (6 == opcode->len)
|
if (6 == opcode->len)
|
md_number_to_chars ((f + 4), ((insn.i[1])>>16), 2);
|
md_number_to_chars ((f + 4), ((insn.i[1])>>16), 2);
|
else
|
else
|
{
|
{
|
/* Not used --- don't have any 8 byte instructions. */
|
/* Not used --- don't have any 8 byte instructions. */
|
as_bad ("Internal Error: bad instruction length");
|
as_bad ("Internal Error: bad instruction length");
|
md_number_to_chars ((f + 4), insn.i[1], opcode->len -4);
|
md_number_to_chars ((f + 4), insn.i[1], opcode->len -4);
|
}
|
}
|
}
|
}
|
|
|
/* Create any fixups. At this point we do not use a
|
/* Create any fixups. At this point we do not use a
|
bfd_reloc_code_real_type, but instead just use the
|
bfd_reloc_code_real_type, but instead just use the
|
BFD_RELOC_UNUSED plus the operand index. This lets us easily
|
BFD_RELOC_UNUSED plus the operand index. This lets us easily
|
handle fixups for any operand type, although that is admittedly
|
handle fixups for any operand type, although that is admittedly
|
not a very exciting feature. We pick a BFD reloc type in
|
not a very exciting feature. We pick a BFD reloc type in
|
md_apply_fix. */
|
md_apply_fix. */
|
for (i = 0; i < fc; i++)
|
for (i = 0; i < fc; i++)
|
{
|
{
|
const struct i370_operand *operand;
|
const struct i370_operand *operand;
|
|
|
operand = &i370_operands[fixups[i].opindex];
|
operand = &i370_operands[fixups[i].opindex];
|
if (fixups[i].reloc != BFD_RELOC_UNUSED)
|
if (fixups[i].reloc != BFD_RELOC_UNUSED)
|
{
|
{
|
reloc_howto_type *reloc_howto = bfd_reloc_type_lookup (stdoutput, fixups[i].reloc);
|
reloc_howto_type *reloc_howto = bfd_reloc_type_lookup (stdoutput, fixups[i].reloc);
|
int size;
|
int size;
|
fixS *fixP;
|
fixS *fixP;
|
|
|
if (!reloc_howto)
|
if (!reloc_howto)
|
abort ();
|
abort ();
|
|
|
size = bfd_get_reloc_size (reloc_howto);
|
size = bfd_get_reloc_size (reloc_howto);
|
|
|
if (size < 1 || size > 4)
|
if (size < 1 || size > 4)
|
abort ();
|
abort ();
|
|
|
printf (" gwana doo fixup %d \n", i);
|
printf (" gwana doo fixup %d \n", i);
|
fixP = fix_new_exp (frag_now, f - frag_now->fr_literal, size,
|
fixP = fix_new_exp (frag_now, f - frag_now->fr_literal, size,
|
&fixups[i].exp, reloc_howto->pc_relative,
|
&fixups[i].exp, reloc_howto->pc_relative,
|
fixups[i].reloc);
|
fixups[i].reloc);
|
|
|
/* Turn off complaints that the addend is too large for things like
|
/* Turn off complaints that the addend is too large for things like
|
foo+100000@ha. */
|
foo+100000@ha. */
|
switch (fixups[i].reloc)
|
switch (fixups[i].reloc)
|
{
|
{
|
case BFD_RELOC_16_GOTOFF:
|
case BFD_RELOC_16_GOTOFF:
|
case BFD_RELOC_LO16:
|
case BFD_RELOC_LO16:
|
case BFD_RELOC_HI16:
|
case BFD_RELOC_HI16:
|
case BFD_RELOC_HI16_S:
|
case BFD_RELOC_HI16_S:
|
fixP->fx_no_overflow = 1;
|
fixP->fx_no_overflow = 1;
|
break;
|
break;
|
default:
|
default:
|
break;
|
break;
|
}
|
}
|
}
|
}
|
else
|
else
|
{
|
{
|
fix_new_exp (frag_now, f - frag_now->fr_literal, opcode->len,
|
fix_new_exp (frag_now, f - frag_now->fr_literal, opcode->len,
|
&fixups[i].exp,
|
&fixups[i].exp,
|
(operand->flags & I370_OPERAND_RELATIVE) != 0,
|
(operand->flags & I370_OPERAND_RELATIVE) != 0,
|
((bfd_reloc_code_real_type)
|
((bfd_reloc_code_real_type)
|
(fixups[i].opindex + (int) BFD_RELOC_UNUSED)));
|
(fixups[i].opindex + (int) BFD_RELOC_UNUSED)));
|
}
|
}
|
}
|
}
|
}
|
}
|
|
|
|
|
/* Pseudo-op handling. */
|
/* Pseudo-op handling. */
|
|
|
/* The .byte pseudo-op. This is similar to the normal .byte
|
/* The .byte pseudo-op. This is similar to the normal .byte
|
pseudo-op, but it can also take a single ASCII string. */
|
pseudo-op, but it can also take a single ASCII string. */
|
|
|
static void
|
static void
|
i370_byte (int ignore ATTRIBUTE_UNUSED)
|
i370_byte (int ignore ATTRIBUTE_UNUSED)
|
{
|
{
|
if (*input_line_pointer != '\"')
|
if (*input_line_pointer != '\"')
|
{
|
{
|
cons (1);
|
cons (1);
|
return;
|
return;
|
}
|
}
|
|
|
/* Gather characters. A real double quote is doubled. Unusual
|
/* Gather characters. A real double quote is doubled. Unusual
|
characters are not permitted. */
|
characters are not permitted. */
|
++input_line_pointer;
|
++input_line_pointer;
|
while (1)
|
while (1)
|
{
|
{
|
char c;
|
char c;
|
|
|
c = *input_line_pointer++;
|
c = *input_line_pointer++;
|
|
|
if (c == '\"')
|
if (c == '\"')
|
{
|
{
|
if (*input_line_pointer != '\"')
|
if (*input_line_pointer != '\"')
|
break;
|
break;
|
++input_line_pointer;
|
++input_line_pointer;
|
}
|
}
|
|
|
FRAG_APPEND_1_CHAR (c);
|
FRAG_APPEND_1_CHAR (c);
|
}
|
}
|
|
|
demand_empty_rest_of_line ();
|
demand_empty_rest_of_line ();
|
}
|
}
|
|
|
/* The .tc pseudo-op. This is used when generating XCOFF and ELF.
|
/* The .tc pseudo-op. This is used when generating XCOFF and ELF.
|
This takes two or more arguments.
|
This takes two or more arguments.
|
|
|
When generating XCOFF output, the first argument is the name to
|
When generating XCOFF output, the first argument is the name to
|
give to this location in the toc; this will be a symbol with class
|
give to this location in the toc; this will be a symbol with class
|
TC. The rest of the arguments are 4 byte values to actually put at
|
TC. The rest of the arguments are 4 byte values to actually put at
|
this location in the TOC; often there is just one more argument, a
|
this location in the TOC; often there is just one more argument, a
|
relocatable symbol reference.
|
relocatable symbol reference.
|
|
|
When not generating XCOFF output, the arguments are the same, but
|
When not generating XCOFF output, the arguments are the same, but
|
the first argument is simply ignored. */
|
the first argument is simply ignored. */
|
|
|
static void
|
static void
|
i370_tc (int ignore ATTRIBUTE_UNUSED)
|
i370_tc (int ignore ATTRIBUTE_UNUSED)
|
{
|
{
|
|
|
/* Skip the TOC symbol name. */
|
/* Skip the TOC symbol name. */
|
while (is_part_of_name (*input_line_pointer)
|
while (is_part_of_name (*input_line_pointer)
|
|| *input_line_pointer == '['
|
|| *input_line_pointer == '['
|
|| *input_line_pointer == ']'
|
|| *input_line_pointer == ']'
|
|| *input_line_pointer == '{'
|
|| *input_line_pointer == '{'
|
|| *input_line_pointer == '}')
|
|| *input_line_pointer == '}')
|
++input_line_pointer;
|
++input_line_pointer;
|
|
|
/* Align to a four byte boundary. */
|
/* Align to a four byte boundary. */
|
frag_align (2, 0, 0);
|
frag_align (2, 0, 0);
|
record_alignment (now_seg, 2);
|
record_alignment (now_seg, 2);
|
|
|
if (*input_line_pointer != ',')
|
if (*input_line_pointer != ',')
|
demand_empty_rest_of_line ();
|
demand_empty_rest_of_line ();
|
else
|
else
|
{
|
{
|
++input_line_pointer;
|
++input_line_pointer;
|
cons (4);
|
cons (4);
|
}
|
}
|
}
|
}
|
|
|
char *
|
char *
|
md_atof (int type, char *litp, int *sizep)
|
md_atof (int type, char *litp, int *sizep)
|
{
|
{
|
/* 360/370/390 have two float formats: an old, funky 360 single-precision
|
/* 360/370/390 have two float formats: an old, funky 360 single-precision
|
format, and the ieee format. Support only the ieee format. */
|
format, and the ieee format. Support only the ieee format. */
|
return ieee_md_atof (type, litp, sizep, TRUE);
|
return ieee_md_atof (type, litp, sizep, TRUE);
|
}
|
}
|
|
|
/* Write a value out to the object file, using the appropriate
|
/* Write a value out to the object file, using the appropriate
|
endianness. */
|
endianness. */
|
|
|
void
|
void
|
md_number_to_chars (char *buf, valueT val, int n)
|
md_number_to_chars (char *buf, valueT val, int n)
|
{
|
{
|
number_to_chars_bigendian (buf, val, n);
|
number_to_chars_bigendian (buf, val, n);
|
}
|
}
|
|
|
/* Align a section (I don't know why this is machine dependent). */
|
/* Align a section (I don't know why this is machine dependent). */
|
|
|
valueT
|
valueT
|
md_section_align (asection *seg, valueT addr)
|
md_section_align (asection *seg, valueT addr)
|
{
|
{
|
int align = bfd_get_section_alignment (stdoutput, seg);
|
int align = bfd_get_section_alignment (stdoutput, seg);
|
|
|
return (addr + (1 << align) - 1) & (-1 << align);
|
return (addr + (1 << align) - 1) & (-1 << align);
|
}
|
}
|
|
|
/* We don't have any form of relaxing. */
|
/* We don't have any form of relaxing. */
|
|
|
int
|
int
|
md_estimate_size_before_relax (fragS *fragp ATTRIBUTE_UNUSED,
|
md_estimate_size_before_relax (fragS *fragp ATTRIBUTE_UNUSED,
|
asection *seg ATTRIBUTE_UNUSED)
|
asection *seg ATTRIBUTE_UNUSED)
|
{
|
{
|
abort ();
|
abort ();
|
return 0;
|
return 0;
|
}
|
}
|
|
|
/* Convert a machine dependent frag. We never generate these. */
|
/* Convert a machine dependent frag. We never generate these. */
|
|
|
void
|
void
|
md_convert_frag (bfd *abfd ATTRIBUTE_UNUSED,
|
md_convert_frag (bfd *abfd ATTRIBUTE_UNUSED,
|
asection *sec ATTRIBUTE_UNUSED,
|
asection *sec ATTRIBUTE_UNUSED,
|
fragS *fragp ATTRIBUTE_UNUSED)
|
fragS *fragp ATTRIBUTE_UNUSED)
|
{
|
{
|
abort ();
|
abort ();
|
}
|
}
|
|
|
/* We have no need to default values of symbols. */
|
/* We have no need to default values of symbols. */
|
|
|
symbolS *
|
symbolS *
|
md_undefined_symbol (char *name ATTRIBUTE_UNUSED)
|
md_undefined_symbol (char *name ATTRIBUTE_UNUSED)
|
{
|
{
|
return 0;
|
return 0;
|
}
|
}
|
|
|
/* Functions concerning relocs. */
|
/* Functions concerning relocs. */
|
|
|
/* The location from which a PC relative jump should be calculated,
|
/* The location from which a PC relative jump should be calculated,
|
given a PC relative reloc. */
|
given a PC relative reloc. */
|
|
|
long
|
long
|
md_pcrel_from_section (fixS *fixp, segT sec ATTRIBUTE_UNUSED)
|
md_pcrel_from_section (fixS *fixp, segT sec ATTRIBUTE_UNUSED)
|
{
|
{
|
return fixp->fx_frag->fr_address + fixp->fx_where;
|
return fixp->fx_frag->fr_address + fixp->fx_where;
|
}
|
}
|
|
|
/* Apply a fixup to the object code. This is called for all the
|
/* Apply a fixup to the object code. This is called for all the
|
fixups we generated by the call to fix_new_exp, above. In the call
|
fixups we generated by the call to fix_new_exp, above. In the call
|
above we used a reloc code which was the largest legal reloc code
|
above we used a reloc code which was the largest legal reloc code
|
plus the operand index. Here we undo that to recover the operand
|
plus the operand index. Here we undo that to recover the operand
|
index. At this point all symbol values should be fully resolved,
|
index. At this point all symbol values should be fully resolved,
|
and we attempt to completely resolve the reloc. If we can not do
|
and we attempt to completely resolve the reloc. If we can not do
|
that, we determine the correct reloc code and put it back in the
|
that, we determine the correct reloc code and put it back in the
|
fixup.
|
fixup.
|
|
|
See gas/cgen.c for more sample code and explanations of what's
|
See gas/cgen.c for more sample code and explanations of what's
|
going on here. */
|
going on here. */
|
|
|
void
|
void
|
md_apply_fix (fixS *fixP, valueT * valP, segT seg)
|
md_apply_fix (fixS *fixP, valueT * valP, segT seg)
|
{
|
{
|
valueT value = * valP;
|
valueT value = * valP;
|
|
|
if (fixP->fx_addsy != NULL)
|
if (fixP->fx_addsy != NULL)
|
{
|
{
|
#ifdef DEBUG
|
#ifdef DEBUG
|
printf ("\nmd_apply_fix: symbol %s at 0x%x (%s:%d) val=0x%x addend=0x%x\n",
|
printf ("\nmd_apply_fix: symbol %s at 0x%x (%s:%d) val=0x%x addend=0x%x\n",
|
S_GET_NAME (fixP->fx_addsy),
|
S_GET_NAME (fixP->fx_addsy),
|
fixP->fx_frag->fr_address + fixP->fx_where,
|
fixP->fx_frag->fr_address + fixP->fx_where,
|
fixP->fx_file, fixP->fx_line,
|
fixP->fx_file, fixP->fx_line,
|
S_GET_VALUE (fixP->fx_addsy), value);
|
S_GET_VALUE (fixP->fx_addsy), value);
|
#endif
|
#endif
|
}
|
}
|
else
|
else
|
fixP->fx_done = 1;
|
fixP->fx_done = 1;
|
|
|
/* Apply fixups to operands. Note that there should be no relocations
|
/* Apply fixups to operands. Note that there should be no relocations
|
for any operands, since no instruction ever takes an operand
|
for any operands, since no instruction ever takes an operand
|
that requires reloc. */
|
that requires reloc. */
|
if ((int) fixP->fx_r_type >= (int) BFD_RELOC_UNUSED)
|
if ((int) fixP->fx_r_type >= (int) BFD_RELOC_UNUSED)
|
{
|
{
|
int opindex;
|
int opindex;
|
const struct i370_operand *operand;
|
const struct i370_operand *operand;
|
char *where;
|
char *where;
|
i370_insn_t insn;
|
i370_insn_t insn;
|
|
|
opindex = (int) fixP->fx_r_type - (int) BFD_RELOC_UNUSED;
|
opindex = (int) fixP->fx_r_type - (int) BFD_RELOC_UNUSED;
|
|
|
operand = &i370_operands[opindex];
|
operand = &i370_operands[opindex];
|
|
|
#ifdef DEBUG
|
#ifdef DEBUG
|
printf ("\nmd_apply_fix: fixup operand %s at 0x%x in %s:%d addend=0x%x\n",
|
printf ("\nmd_apply_fix: fixup operand %s at 0x%x in %s:%d addend=0x%x\n",
|
operand->name,
|
operand->name,
|
fixP->fx_frag->fr_address + fixP->fx_where,
|
fixP->fx_frag->fr_address + fixP->fx_where,
|
fixP->fx_file, fixP->fx_line,
|
fixP->fx_file, fixP->fx_line,
|
value);
|
value);
|
#endif
|
#endif
|
/* Fetch the instruction, insert the fully resolved operand
|
/* Fetch the instruction, insert the fully resolved operand
|
value, and stuff the instruction back again.
|
value, and stuff the instruction back again.
|
fisxp->fx_size is the length of the instruction. */
|
fisxp->fx_size is the length of the instruction. */
|
where = fixP->fx_frag->fr_literal + fixP->fx_where;
|
where = fixP->fx_frag->fr_literal + fixP->fx_where;
|
insn.i[0] = bfd_getb32 ((unsigned char *) where);
|
insn.i[0] = bfd_getb32 ((unsigned char *) where);
|
|
|
if (6 <= fixP->fx_size)
|
if (6 <= fixP->fx_size)
|
/* Deal with 48-bit insn's. */
|
/* Deal with 48-bit insn's. */
|
insn.i[1] = bfd_getb32 (((unsigned char *) where)+4);
|
insn.i[1] = bfd_getb32 (((unsigned char *) where)+4);
|
|
|
insn = i370_insert_operand (insn, operand, (offsetT) value);
|
insn = i370_insert_operand (insn, operand, (offsetT) value);
|
bfd_putb32 ((bfd_vma) insn.i[0], (unsigned char *) where);
|
bfd_putb32 ((bfd_vma) insn.i[0], (unsigned char *) where);
|
|
|
if (6 <= fixP->fx_size)
|
if (6 <= fixP->fx_size)
|
/* Deal with 48-bit insn's. */
|
/* Deal with 48-bit insn's. */
|
bfd_putb32 ((bfd_vma) insn.i[1], (((unsigned char *) where)+4));
|
bfd_putb32 ((bfd_vma) insn.i[1], (((unsigned char *) where)+4));
|
|
|
/* We are done, right? right !! */
|
/* We are done, right? right !! */
|
fixP->fx_done = 1;
|
fixP->fx_done = 1;
|
if (fixP->fx_done)
|
if (fixP->fx_done)
|
/* Nothing else to do here. */
|
/* Nothing else to do here. */
|
return;
|
return;
|
|
|
/* Determine a BFD reloc value based on the operand information.
|
/* Determine a BFD reloc value based on the operand information.
|
We are only prepared to turn a few of the operands into
|
We are only prepared to turn a few of the operands into
|
relocs. In fact, we support *zero* operand relocations ...
|
relocs. In fact, we support *zero* operand relocations ...
|
Why? Because we are not expecting the compiler to generate
|
Why? Because we are not expecting the compiler to generate
|
any operands that need relocation. Due to the 12-bit naturew of
|
any operands that need relocation. Due to the 12-bit naturew of
|
i370 addressing, this would be unusual. */
|
i370 addressing, this would be unusual. */
|
{
|
{
|
char *sfile;
|
char *sfile;
|
unsigned int sline;
|
unsigned int sline;
|
|
|
/* Use expr_symbol_where to see if this is an expression
|
/* Use expr_symbol_where to see if this is an expression
|
symbol. */
|
symbol. */
|
if (expr_symbol_where (fixP->fx_addsy, &sfile, &sline))
|
if (expr_symbol_where (fixP->fx_addsy, &sfile, &sline))
|
as_bad_where (fixP->fx_file, fixP->fx_line,
|
as_bad_where (fixP->fx_file, fixP->fx_line,
|
"unresolved expression that must be resolved");
|
"unresolved expression that must be resolved");
|
else
|
else
|
as_bad_where (fixP->fx_file, fixP->fx_line,
|
as_bad_where (fixP->fx_file, fixP->fx_line,
|
"unsupported relocation type");
|
"unsupported relocation type");
|
fixP->fx_done = 1;
|
fixP->fx_done = 1;
|
return;
|
return;
|
}
|
}
|
}
|
}
|
else
|
else
|
{
|
{
|
/* We branch to here if the fixup is not to a symbol that
|
/* We branch to here if the fixup is not to a symbol that
|
appears in an instruction operand, but is rather some
|
appears in an instruction operand, but is rather some
|
declared storage. */
|
declared storage. */
|
#ifdef OBJ_ELF
|
#ifdef OBJ_ELF
|
i370_elf_validate_fix (fixP, seg);
|
i370_elf_validate_fix (fixP, seg);
|
#endif
|
#endif
|
#ifdef DEBUG
|
#ifdef DEBUG
|
printf ("md_apply_fix: reloc case %d in segment %s %s:%d\n",
|
printf ("md_apply_fix: reloc case %d in segment %s %s:%d\n",
|
fixP->fx_r_type, segment_name (seg), fixP->fx_file, fixP->fx_line);
|
fixP->fx_r_type, segment_name (seg), fixP->fx_file, fixP->fx_line);
|
printf ("\tcurrent fixup value is 0x%x \n", value);
|
printf ("\tcurrent fixup value is 0x%x \n", value);
|
#endif
|
#endif
|
switch (fixP->fx_r_type)
|
switch (fixP->fx_r_type)
|
{
|
{
|
case BFD_RELOC_32:
|
case BFD_RELOC_32:
|
case BFD_RELOC_CTOR:
|
case BFD_RELOC_CTOR:
|
if (fixP->fx_pcrel)
|
if (fixP->fx_pcrel)
|
fixP->fx_r_type = BFD_RELOC_32_PCREL;
|
fixP->fx_r_type = BFD_RELOC_32_PCREL;
|
/* Fall through. */
|
/* Fall through. */
|
|
|
case BFD_RELOC_RVA:
|
case BFD_RELOC_RVA:
|
case BFD_RELOC_32_PCREL:
|
case BFD_RELOC_32_PCREL:
|
case BFD_RELOC_32_BASEREL:
|
case BFD_RELOC_32_BASEREL:
|
#ifdef DEBUG
|
#ifdef DEBUG
|
printf ("\t32 bit relocation at 0x%x\n",
|
printf ("\t32 bit relocation at 0x%x\n",
|
fixP->fx_frag->fr_address + fixP->fx_where);
|
fixP->fx_frag->fr_address + fixP->fx_where);
|
#endif
|
#endif
|
md_number_to_chars (fixP->fx_frag->fr_literal + fixP->fx_where,
|
md_number_to_chars (fixP->fx_frag->fr_literal + fixP->fx_where,
|
value, 4);
|
value, 4);
|
break;
|
break;
|
|
|
case BFD_RELOC_LO16:
|
case BFD_RELOC_LO16:
|
case BFD_RELOC_16:
|
case BFD_RELOC_16:
|
if (fixP->fx_pcrel)
|
if (fixP->fx_pcrel)
|
as_bad_where (fixP->fx_file, fixP->fx_line,
|
as_bad_where (fixP->fx_file, fixP->fx_line,
|
"cannot emit PC relative %s relocation%s%s",
|
"cannot emit PC relative %s relocation%s%s",
|
bfd_get_reloc_code_name (fixP->fx_r_type),
|
bfd_get_reloc_code_name (fixP->fx_r_type),
|
fixP->fx_addsy != NULL ? " against " : "",
|
fixP->fx_addsy != NULL ? " against " : "",
|
(fixP->fx_addsy != NULL
|
(fixP->fx_addsy != NULL
|
? S_GET_NAME (fixP->fx_addsy)
|
? S_GET_NAME (fixP->fx_addsy)
|
: ""));
|
: ""));
|
|
|
md_number_to_chars (fixP->fx_frag->fr_literal + fixP->fx_where,
|
md_number_to_chars (fixP->fx_frag->fr_literal + fixP->fx_where,
|
value, 2);
|
value, 2);
|
break;
|
break;
|
|
|
/* This case happens when you write, for example,
|
/* This case happens when you write, for example,
|
lis %r3,(L1-L2)@ha
|
lis %r3,(L1-L2)@ha
|
where L1 and L2 are defined later. */
|
where L1 and L2 are defined later. */
|
case BFD_RELOC_HI16:
|
case BFD_RELOC_HI16:
|
if (fixP->fx_pcrel)
|
if (fixP->fx_pcrel)
|
abort ();
|
abort ();
|
md_number_to_chars (fixP->fx_frag->fr_literal + fixP->fx_where,
|
md_number_to_chars (fixP->fx_frag->fr_literal + fixP->fx_where,
|
value >> 16, 2);
|
value >> 16, 2);
|
break;
|
break;
|
case BFD_RELOC_HI16_S:
|
case BFD_RELOC_HI16_S:
|
if (fixP->fx_pcrel)
|
if (fixP->fx_pcrel)
|
abort ();
|
abort ();
|
md_number_to_chars (fixP->fx_frag->fr_literal + fixP->fx_where,
|
md_number_to_chars (fixP->fx_frag->fr_literal + fixP->fx_where,
|
(value + 0x8000) >> 16, 2);
|
(value + 0x8000) >> 16, 2);
|
break;
|
break;
|
|
|
case BFD_RELOC_8:
|
case BFD_RELOC_8:
|
if (fixP->fx_pcrel)
|
if (fixP->fx_pcrel)
|
abort ();
|
abort ();
|
|
|
md_number_to_chars (fixP->fx_frag->fr_literal + fixP->fx_where,
|
md_number_to_chars (fixP->fx_frag->fr_literal + fixP->fx_where,
|
value, 1);
|
value, 1);
|
break;
|
break;
|
|
|
default:
|
default:
|
fprintf (stderr,
|
fprintf (stderr,
|
"Gas failure, reloc value %d\n", fixP->fx_r_type);
|
"Gas failure, reloc value %d\n", fixP->fx_r_type);
|
fflush (stderr);
|
fflush (stderr);
|
abort ();
|
abort ();
|
}
|
}
|
}
|
}
|
|
|
fixP->fx_addnumber = value;
|
fixP->fx_addnumber = value;
|
}
|
}
|
|
|
/* Generate a reloc for a fixup. */
|
/* Generate a reloc for a fixup. */
|
|
|
arelent *
|
arelent *
|
tc_gen_reloc (asection *seg ATTRIBUTE_UNUSED, fixS *fixp)
|
tc_gen_reloc (asection *seg ATTRIBUTE_UNUSED, fixS *fixp)
|
{
|
{
|
arelent *reloc;
|
arelent *reloc;
|
|
|
reloc = xmalloc (sizeof (arelent));
|
reloc = xmalloc (sizeof (arelent));
|
|
|
reloc->sym_ptr_ptr = xmalloc (sizeof (asymbol *));
|
reloc->sym_ptr_ptr = xmalloc (sizeof (asymbol *));
|
*reloc->sym_ptr_ptr = symbol_get_bfdsym (fixp->fx_addsy);
|
*reloc->sym_ptr_ptr = symbol_get_bfdsym (fixp->fx_addsy);
|
reloc->address = fixp->fx_frag->fr_address + fixp->fx_where;
|
reloc->address = fixp->fx_frag->fr_address + fixp->fx_where;
|
reloc->howto = bfd_reloc_type_lookup (stdoutput, fixp->fx_r_type);
|
reloc->howto = bfd_reloc_type_lookup (stdoutput, fixp->fx_r_type);
|
if (reloc->howto == (reloc_howto_type *) NULL)
|
if (reloc->howto == (reloc_howto_type *) NULL)
|
{
|
{
|
as_bad_where (fixp->fx_file, fixp->fx_line,
|
as_bad_where (fixp->fx_file, fixp->fx_line,
|
"reloc %d not supported by object file format", (int)fixp->fx_r_type);
|
"reloc %d not supported by object file format", (int)fixp->fx_r_type);
|
return NULL;
|
return NULL;
|
}
|
}
|
reloc->addend = fixp->fx_addnumber;
|
reloc->addend = fixp->fx_addnumber;
|
|
|
#ifdef DEBUG
|
#ifdef DEBUG
|
printf ("\ngen_reloc(): sym %s (%s:%d) at addr 0x%x addend=0x%x\n",
|
printf ("\ngen_reloc(): sym %s (%s:%d) at addr 0x%x addend=0x%x\n",
|
fixp->fx_addsy->bsym->name,
|
fixp->fx_addsy->bsym->name,
|
fixp->fx_file, fixp->fx_line,
|
fixp->fx_file, fixp->fx_line,
|
reloc->address, reloc->addend);
|
reloc->address, reloc->addend);
|
#endif
|
#endif
|
|
|
return reloc;
|
return reloc;
|
}
|
}
|
|
|
/* The target specific pseudo-ops which we support. */
|
/* The target specific pseudo-ops which we support. */
|
|
|
const pseudo_typeS md_pseudo_table[] =
|
const pseudo_typeS md_pseudo_table[] =
|
{
|
{
|
/* Pseudo-ops which must be overridden. */
|
/* Pseudo-ops which must be overridden. */
|
{ "byte", i370_byte, 0 },
|
{ "byte", i370_byte, 0 },
|
|
|
{ "dc", i370_dc, 0 },
|
{ "dc", i370_dc, 0 },
|
{ "ds", i370_ds, 0 },
|
{ "ds", i370_ds, 0 },
|
{ "rmode", i370_rmode, 0 },
|
{ "rmode", i370_rmode, 0 },
|
{ "csect", i370_csect, 0 },
|
{ "csect", i370_csect, 0 },
|
{ "dsect", i370_dsect, 0 },
|
{ "dsect", i370_dsect, 0 },
|
|
|
/* enable ebcdic strings e.g. for 3270 support */
|
/* enable ebcdic strings e.g. for 3270 support */
|
{ "ebcdic", i370_ebcdic, 0 },
|
{ "ebcdic", i370_ebcdic, 0 },
|
|
|
#ifdef OBJ_ELF
|
#ifdef OBJ_ELF
|
{ "long", i370_elf_cons, 4 },
|
{ "long", i370_elf_cons, 4 },
|
{ "word", i370_elf_cons, 4 },
|
{ "word", i370_elf_cons, 4 },
|
{ "short", i370_elf_cons, 2 },
|
{ "short", i370_elf_cons, 2 },
|
{ "rdata", i370_elf_rdata, 0 },
|
{ "rdata", i370_elf_rdata, 0 },
|
{ "rodata", i370_elf_rdata, 0 },
|
{ "rodata", i370_elf_rdata, 0 },
|
{ "lcomm", i370_elf_lcomm, 0 },
|
{ "lcomm", i370_elf_lcomm, 0 },
|
#endif
|
#endif
|
|
|
/* This pseudo-op is used even when not generating XCOFF output. */
|
/* This pseudo-op is used even when not generating XCOFF output. */
|
{ "tc", i370_tc, 0 },
|
{ "tc", i370_tc, 0 },
|
|
|
/* dump the literal pool */
|
/* dump the literal pool */
|
{ "ltorg", i370_ltorg, 0 },
|
{ "ltorg", i370_ltorg, 0 },
|
|
|
/* support the hlasm-style USING directive */
|
/* support the hlasm-style USING directive */
|
{ "using", i370_using, 0 },
|
{ "using", i370_using, 0 },
|
{ "drop", i370_drop, 0 },
|
{ "drop", i370_drop, 0 },
|
|
|
{ NULL, NULL, 0 }
|
{ NULL, NULL, 0 }
|
};
|
};
|
|
|
|
|
