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[/] [open8_urisc/] [trunk/] [gnu/] [binutils/] [gas/] [config/] [tc-hppa.h] - Blame information for rev 128

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/* tc-hppa.h -- Header file for the PA
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   Copyright 1989, 1993, 1994, 1995, 1997, 1998, 1999, 2000, 2001, 2002,
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   2003, 2004, 2005, 2006, 2007, 2008, 2009 Free Software Foundation, Inc.
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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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   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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   any later version.
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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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   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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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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   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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   02110-1301, USA.  */
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/* HP PA-RISC support was contributed by the Center for Software Science
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   at the University of Utah.  */
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/* Please refrain from exposing the world to the internals of tc-hppa.c
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   when this file is included.  This means only declaring exported functions,
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   (please PARAMize them!) not exporting structures and data items which
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   are used solely within tc-hppa.c, etc.
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   Also refrain from adding any more object file dependent code, there is
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   already far too much object file format dependent code in this file.
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   In theory this file should contain only exported functions, structures
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   and data declarations common to all PA assemblers.  */
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#ifndef _TC_HPPA_H
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#define _TC_HPPA_H
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#ifndef TC_HPPA
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#define TC_HPPA 1
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#endif
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#define TARGET_BYTES_BIG_ENDIAN 1
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#define TARGET_ARCH bfd_arch_hppa
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#define WORKING_DOT_WORD
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#ifdef OBJ_ELF
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#if TARGET_ARCH_SIZE == 64
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#include "bfd/elf64-hppa.h"
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#if defined (TE_LINUX) || defined (TE_NetBSD)
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#define TARGET_FORMAT "elf64-hppa-linux"
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#else
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#define TARGET_FORMAT "elf64-hppa"
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#endif
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#else /* TARGET_ARCH_SIZE == 32 */
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#include "bfd/elf32-hppa.h"
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#if defined (TE_LINUX)
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#define TARGET_FORMAT "elf32-hppa-linux"
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#else
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#if defined (TE_NetBSD)
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#define TARGET_FORMAT "elf32-hppa-netbsd"
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#else
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#define TARGET_FORMAT "elf32-hppa"
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#endif
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#endif
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#endif
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#endif
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#ifdef OBJ_SOM
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#include "bfd/som.h"
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#define TARGET_FORMAT "som"
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#endif
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#if defined(TE_LINUX) || defined(TE_NetBSD)
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/* Define to compile in an extra assembler option, -c, which enables a
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   warning (once per file) when a comment is encountered.
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   The hppa comment char is a `;' which tends to occur in random C asm
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   statements.  A semicolon is a line separator for most assemblers.
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   It's hard to find these lurking semicolons.  Thus...  */
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#define WARN_COMMENTS 1
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#endif
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/* FIXME.  Why oh why aren't these defined somewhere globally?  */
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#ifndef FALSE
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#define FALSE   (0)
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#define TRUE    (!FALSE)
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#endif
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#define ASEC_NULL (asection *)0
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/* pa_define_label gets used outside of tc-hppa.c via tc_frob_label.  */
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extern void pa_define_label (symbolS *);
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extern void parse_cons_expression_hppa (expressionS *);
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extern void cons_fix_new_hppa (fragS *, int, int, expressionS *);
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extern int hppa_force_relocation (struct fix *);
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/* This gets called before writing the object file to make sure
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   things like entry/exit and proc/procend pairs match.  */
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extern void pa_check_eof (void);
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#define tc_frob_file pa_check_eof
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#define tc_frob_label(sym) pa_define_label (sym)
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extern const char       hppa_symbol_chars[];
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#define tc_symbol_chars hppa_symbol_chars
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#define RELOC_EXPANSION_POSSIBLE
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#define MAX_RELOC_EXPANSION 6
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/* The PA needs to parse field selectors in .byte, etc.  */
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#define TC_PARSE_CONS_EXPRESSION(EXP, NBYTES) \
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  parse_cons_expression_hppa (EXP)
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#define TC_CONS_FIX_NEW cons_fix_new_hppa
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/* On the PA, an exclamation point can appear in an instruction.  It is
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   used in FP comparison instructions and as an end of line marker.
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   When used in an instruction it will always follow a comma.  */
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#define TC_EOL_IN_INSN(PTR)     (*(PTR) == '!' && (PTR)[-1] == ',')
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int hppa_fix_adjustable (struct fix *);
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#define tc_fix_adjustable hppa_fix_adjustable
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#define EXTERN_FORCE_RELOC 1
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/* Because of the strange PA calling conventions, it is sometimes
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   necessary to emit a relocation for a call even though it would
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   normally appear safe to handle it completely within GAS.  */
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#define TC_FORCE_RELOCATION(FIX) hppa_force_relocation (FIX)
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/* Values passed to md_apply_fix don't include the symbol value.  */
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#define MD_APPLY_SYM_VALUE(FIX) 0
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#ifdef OBJ_SOM
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/* If a symbol is imported, but never used, then the symbol should
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   *not* end up in the symbol table.  Likewise for absolute symbols
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   with local scope.  */
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#define tc_frob_symbol(sym,punt) \
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    if ((S_GET_SEGMENT (sym) == &bfd_und_section && ! symbol_used_p (sym)) \
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        || (S_GET_SEGMENT (sym) == &bfd_abs_section \
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            && ! S_IS_EXTERNAL (sym))) \
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      punt = 1
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/* We need to be able to make relocations involving the difference of
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   two symbols.  This includes the difference of two symbols when
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   one of them is undefined (this comes up in PIC code generation).
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   We allow the difference of two symbols when the subtract symbol is
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   local to the relocation.  This is implemented using R_HPPA_COMPLEX.
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   This has some limitations.  Difference expressions only work between
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   symbols in the same segment/quadrant of a module since the HP dynamic
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   loader relocates the text and data segments independently.  Thus, a
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   difference expression can't be used between text and data symbols,
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   or between symbols in different executable modules.  */
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#define DIFF_EXPR_OK 1
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#define TC_FORCE_RELOCATION_SUB_LOCAL(FIX, SEG) 1
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#define UNDEFINED_DIFFERENCE_OK
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#endif
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#ifdef OBJ_ELF
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/* Difference expressions for the 64-bit HP-UX target have the same
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   limitations as those for the 32-bit SOM target.  */
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#define DIFF_EXPR_OK 1
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/* Handle .type psuedo.  Given a type string of `millicode', set the
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   internal elf symbol type to STT_PARISC_MILLI, and return
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   BSF_FUNCTION for the BFD symbol type.  */
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#define md_elf_symbol_type(name, sym, elf)                              \
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  ((strcmp ((name), "millicode") == 0                                    \
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    || strcmp ((name), "STT_PARISC_MILLI") == 0)                 \
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   ? (((elf)->internal_elf_sym.st_info = ELF_ST_INFO                    \
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       (ELF_ST_BIND ((elf)->internal_elf_sym.st_info), STT_PARISC_MILLI)\
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       ), BSF_FUNCTION)                                                 \
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   : -1)
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#define tc_frob_symbol(sym,punt) \
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  { \
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    if ((S_GET_SEGMENT (sym) == &bfd_und_section \
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         && ! symbol_used_p (sym) \
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         && ELF_ST_VISIBILITY (S_GET_OTHER (sym)) == STV_DEFAULT) \
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        || strcmp (S_GET_NAME (sym), "$global$") == 0 \
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        || strcmp (S_GET_NAME (sym), "$segrel$") == 0 \
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        || strcmp (S_GET_NAME (sym), "$PIC_pcrel$0") == 0 \
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        || strcmp (S_GET_NAME (sym), "$tls_gdidx$") == 0 \
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        || strcmp (S_GET_NAME (sym), "$tls_ldidx$") == 0 \
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        || strcmp (S_GET_NAME (sym), "$tls_dtpoff$") == 0 \
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        || strcmp (S_GET_NAME (sym), "$tls_ieoff$") == 0 \
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        || strcmp (S_GET_NAME (sym), "$tls_leoff$") == 0) \
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      punt = 1; \
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  }
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#define elf_tc_final_processing elf_hppa_final_processing
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void elf_hppa_final_processing (void);
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#endif /* OBJ_ELF */
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#define md_operand(x)
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/* Allow register expressions to be treated as absolute expressions.
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   A silly fudge required for backwards compatibility.  */
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#define md_optimize_expr hppa_force_reg_syms_absolute
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int hppa_force_reg_syms_absolute (expressionS *, operatorT, expressionS *);
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#define TC_FIX_TYPE void *
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#define TC_INIT_FIX_DATA(FIX) ((FIX)->tc_fix_data = NULL)
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#ifdef OBJ_ELF
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#define TARGET_USE_CFIPOP 1
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#define tc_cfi_frame_initial_instructions hppa_cfi_frame_initial_instructions
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extern void hppa_cfi_frame_initial_instructions (void);
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#define tc_regname_to_dw2regnum hppa_regname_to_dw2regnum
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extern int hppa_regname_to_dw2regnum (char *regname);
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#define DWARF2_LINE_MIN_INSN_LENGTH 4
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#define DWARF2_DEFAULT_RETURN_COLUMN 2
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#if TARGET_ARCH_SIZE == 64
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#define DWARF2_CIE_DATA_ALIGNMENT 8
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#define DWARF2_FDE_RELOC_SIZE 8
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#else
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#define DWARF2_CIE_DATA_ALIGNMENT 4
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#endif
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#if !defined (TE_LINUX) && !defined (TE_NetBSD)
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/* Due to the way dynamic linking to personality functions is handled
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   on HP-UX, we need to have a read-write .eh_frame section.  */
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#define DWARF2_EH_FRAME_READ_ONLY 0
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/* Because differences between text and data symbols don't work, we
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   can't use difference expressions during CFI generation.  */
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#define CFI_DIFF_EXPR_OK 0
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#endif
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#endif /* OBJ_ELF */
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#endif /* _TC_HPPA_H */

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