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jeremybenn |
/* XCOFF definitions. These are needed in dbxout.c, final.c,
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and xcoffout.h.
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Copyright (C) 1998, 2000, 2002, 2003, 2004, 2007, 2008
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Free Software Foundation, Inc.
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This file is part of GCC.
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GCC is free software; you can redistribute it and/or modify it under
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the terms of the GNU General Public License as published by the Free
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Software Foundation; either version 3, or (at your option) any later
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version.
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GCC is distributed in the hope that it will be useful, but WITHOUT ANY
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WARRANTY; without even the implied warranty of MERCHANTABILITY or
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FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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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 GCC; see the file COPYING3. If not see
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<http://www.gnu.org/licenses/>. */
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/* Tags and typedefs are C_DECL in XCOFF, not C_LSYM. */
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#define DBX_TYPE_DECL_STABS_CODE N_DECL
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/* Use the XCOFF predefined type numbers. */
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#define DBX_ASSIGN_FUNDAMENTAL_TYPE_NUMBER(TYPE) \
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xcoff_assign_fundamental_type_number (TYPE)
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/* Any type with a negative type index has already been output. */
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#define DBX_TYPE_DEFINED(TYPE) (TYPE_SYMTAB_ADDRESS (TYPE) < 0)
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/* Must use N_STSYM for static const variables (those in the text section)
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instead of N_FUN. */
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#define DBX_STATIC_CONST_VAR_CODE N_STSYM
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/* For static variables, output code to define the start of a static block. */
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#define DBX_STATIC_BLOCK_START(ASMFILE,CODE) \
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{ \
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if ((CODE) == N_STSYM) \
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fprintf ((ASMFILE), "\t.bs\t%s[RW]\n", xcoff_private_data_section_name);\
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else if ((CODE) == N_LCSYM) \
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fprintf ((ASMFILE), "\t.bs\t%s\n", xcoff_bss_section_name); \
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}
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/* For static variables, output code to define the end of a static block. */
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#define DBX_STATIC_BLOCK_END(ASMFILE,CODE) \
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{ \
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if ((CODE) == N_STSYM || (CODE) == N_LCSYM) \
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fputs ("\t.es\n", (ASMFILE)); \
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}
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/* We must use N_RPYSM instead of N_RSYM for register parameters. */
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#define DBX_REGPARM_STABS_CODE N_RPSYM
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/* We must use 'R' instead of 'P' for register parameters. */
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#define DBX_REGPARM_STABS_LETTER 'R'
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/* Define our own finish symbol function, since xcoff stabs have their
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own different format. */
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#define DBX_FINISH_STABS(SYM, CODE, LINE, ADDR, LABEL, NUMBER) do { \
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if (ADDR) \
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{ \
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/* If we are writing a function name, we must emit a dot in \
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order to refer to the function code, not its descriptor. */ \
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if (CODE == N_FUN) \
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putc ('.', asm_out_file); \
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\
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/* If we are writing a function name, we must ensure that \
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there is no storage-class suffix on the name. */ \
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if (CODE == N_FUN && GET_CODE (ADDR) == SYMBOL_REF) \
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{ \
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const char *_p = XSTR (ADDR, 0); \
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if (*_p == '*') \
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fputs (_p+1, asm_out_file); \
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else \
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for (; *_p != '[' && *_p; _p++) \
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putc (*_p != '$' ? *_p : '_', asm_out_file); \
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} \
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else \
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output_addr_const (asm_out_file, ADDR); \
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} \
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/* Another special case: N_GSYM always gets the symbol name, \
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whether or not LABEL or NUMBER are set. */ \
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else if (CODE == N_GSYM) \
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assemble_name (asm_out_file, XSTR (XEXP (DECL_RTL (SYM), 0), 0)); \
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else if (LABEL) \
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assemble_name (asm_out_file, LABEL); \
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else \
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dbxout_int (NUMBER); \
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putc (',', asm_out_file); \
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dbxout_int (stab_to_sclass (CODE)); \
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fputs (",0\n", asm_out_file); \
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} while (0)
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/* These are IBM XCOFF extensions we need to reference in dbxout.c
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and xcoffout.c. */
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/* AIX XCOFF uses this for typedefs. This can have any value, since it is
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only used for translation into a C_DECL storage class. */
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#ifndef N_DECL
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#define N_DECL 0x8c
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#endif
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/* AIX XCOFF uses this for parameters passed in registers. This can have
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any value, since it is only used for translation into a C_RPSYM storage
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class. */
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#ifndef N_RPSYM
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#define N_RPSYM 0x8e
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#endif
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/* Name of the current include file. */
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extern const char *xcoff_current_include_file;
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/* Names of bss and data sections. These should be unique names for each
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compilation unit. */
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extern char *xcoff_bss_section_name;
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extern char *xcoff_private_data_section_name;
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extern char *xcoff_read_only_section_name;
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/* Last source file name mentioned in a NOTE insn. */
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extern const char *xcoff_lastfile;
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/* Don't write out path name for main source file. */
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#define NO_DBX_MAIN_SOURCE_DIRECTORY 1
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/* Write out main source file name using ".file" rather than ".stabs".
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We don't actually do this here, because the assembler gets confused if there
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is more than one .file directive. rs6000_xcoff_file_start is already
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emitting a .file directory, so we don't output one here also.
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Initialize xcoff_lastfile. */
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#define DBX_OUTPUT_MAIN_SOURCE_FILENAME(FILE,FILENAME) \
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xcoff_lastfile = (FILENAME)
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/* If we are still in an include file, its end must be marked. */
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#define DBX_OUTPUT_MAIN_SOURCE_FILE_END(FILE, FILENAME) \
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do { \
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if (xcoff_current_include_file) \
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{ \
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fputs ("\t.ei\t", (FILE)); \
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output_quoted_string ((FILE), xcoff_current_include_file); \
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putc ('\n', (FILE)); \
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xcoff_current_include_file = NULL; \
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} \
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} while (0)
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/* Do not emit any marker for XCOFF until assembler allows XFT_CV. */
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#define NO_DBX_GCC_MARKER
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/* Do not break .stabs pseudos into continuations. */
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#define DBX_CONTIN_LENGTH 0
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/* Don't try to use the `x' type-cross-reference character in DBX data.
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Also has the consequence of putting each struct, union or enum
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into a separate .stabs, containing only cross-refs to the others. */
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#define DBX_NO_XREFS
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/* We must put stabs in the text section. If we don't the assembler
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won't handle them correctly; it will sometimes put stabs where gdb
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can't find them. */
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#define DEBUG_SYMS_TEXT
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/* Prototype functions in xcoffout.c. */
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extern int stab_to_sclass (int);
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extern void xcoffout_begin_prologue (unsigned int, const char *);
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extern void xcoffout_begin_block (unsigned, unsigned);
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extern void xcoffout_end_epilogue (unsigned int, const char *);
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extern void xcoffout_end_function (unsigned int);
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extern void xcoffout_end_block (unsigned, unsigned);
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extern int xcoff_assign_fundamental_type_number (tree);
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extern void xcoffout_declare_function (FILE *, tree, const char *);
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extern void xcoffout_source_line (unsigned int, const char *, int, bool);
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