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Diffstat (limited to 'gcc/config/dbxelf.h')
| -rw-r--r-- | gcc/config/dbxelf.h | 105 |
1 files changed, 105 insertions, 0 deletions
diff --git a/gcc/config/dbxelf.h b/gcc/config/dbxelf.h new file mode 100644 index 00000000000..9472887cc52 --- /dev/null +++ b/gcc/config/dbxelf.h @@ -0,0 +1,105 @@ +/* Definitions needed when using stabs embedded in ELF sections. + Copyright (C) 1999 Free Software Foundation, Inc. + +This file is part of GNU CC. + +GNU CC is free software; you can redistribute it and/or modify +it under the terms of the GNU General Public License as published by +the Free Software Foundation; either version 2, or (at your option) +any later version. + +GNU CC is distributed in the hope that it will be useful, +but WITHOUT ANY WARRANTY; without even the implied warranty of +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +GNU General Public License for more details. + +You should have received a copy of the GNU General Public License +along with GNU CC; see the file COPYING. If not, write to +the Free Software Foundation, 59 Temple Place - Suite 330, +Boston, MA 02111-1307, USA. */ + +/* This file may be included by any ELF target which wishes to + support -gstabs generating stabs in sections, as produced by gas + and understood by gdb. */ + +#ifndef __DBX_ELF_H +#define __DBX_ELF_H + +/* Output DBX (stabs) debugging information if doing -gstabs. */ + +#undef DBX_DEBUGGING_INFO +#define DBX_DEBUGGING_INFO + +/* Make LBRAC and RBRAC addresses relative to the start of the + function. The native Solaris stabs debugging format works this + way, gdb expects it, and it reduces the number of relocation + entries... */ + +#undef DBX_BLOCKS_FUNCTION_RELATIVE +#define DBX_BLOCKS_FUNCTION_RELATIVE 1 + +/* ... but, to make this work, functions must appear prior to line info. */ + +#undef DBX_FUNCTION_FIRST +#define DBX_FUNCTION_FIRST + +/* When generating stabs debugging, use N_BINCL entries. */ + +#undef DBX_USE_BINCL +#define DBX_USE_BINCL + +/* There is no limit to the length of stabs strings. */ + +#ifndef DBX_CONTIN_LENGTH +#define DBX_CONTIN_LENGTH 0 +#endif + +/* When using stabs, gcc2_compiled must be a stabs entry, not an + ordinary symbol, or gdb won't see it. Furthermore, since gdb reads + the input piecemeal, starting with each N_SO, it's a lot easier if + the gcc2 flag symbol is *after* the N_SO rather than before it. So + we emit an N_OPT stab there. */ + +#define ASM_IDENTIFY_GCC(FILE) \ +do \ + { \ + if (write_symbols != DBX_DEBUG) \ + fputs ("gcc2_compiled.:\n", FILE); \ + } \ +while (0) + +#define ASM_IDENTIFY_GCC_AFTER_SOURCE(FILE) \ +do \ + { \ + if (write_symbols == DBX_DEBUG) \ + fputs ("\t.stabs\t\"gcc2_compiled.\", 0x3c, 0, 0, 0\n", FILE); \ + } \ +while (0) + +/* Like block addresses, stabs line numbers are relative to the + current function. */ + +#undef ASM_OUTPUT_SOURCE_LINE +#define ASM_OUTPUT_SOURCE_LINE(file, line) \ +do \ + { \ + static int sym_lineno = 1; \ + fprintf (file, ".stabn 68,0,%d,.LM%d-", \ + line, sym_lineno); \ + assemble_name (file, \ + XSTR (XEXP (DECL_RTL (current_function_decl), 0), 0));\ + fprintf (file, "\n.LM%d:\n", sym_lineno); \ + sym_lineno += 1; \ + } \ +while (0) + +/* Generate a blank trailing N_SO to mark the end of the .o file, since + we can't depend upon the linker to mark .o file boundaries with + embedded stabs. */ + +#undef DBX_OUTPUT_MAIN_SOURCE_FILE_END +#define DBX_OUTPUT_MAIN_SOURCE_FILE_END(FILE, FILENAME) \ + fprintf (FILE, \ + "\t.text\n\t.stabs \"\",%d,0,0,Letext\nLetext:\n", N_SO) + +#endif /* __DBX_ELF_H */ |