freebsd-dev/contrib/gcc/config/lynx.h

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/* Target independent definitions for LynxOS using gas and gnu ld.
Copyright (C) 1993, 1994, 1995, 1996, 1999, 2000, 2002, 2003
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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 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.
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GCC 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
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along with GCC; see the file COPYING. If not, write to
the Free Software Foundation, 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA. */
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/* LynxOS is a multi-platform Unix, similar to SVR3, but not identical. */
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/* Define various macros, depending on the combination of flags. */
#undef CPP_SPEC
#define CPP_SPEC "%{mthreads:-D_MULTITHREADED} \
%{mposix:-D_POSIX_SOURCE} \
%{msystem-v:-I/usr/include_v}"
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/* No asm spec needed, since using GNU assembler always. */
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/* No linker spec needed, since using GNU linker always. */
#undef LIB_SPEC
#define LIB_SPEC "%{mthreads:-L/lib/thread/} \
%{msystem-v:-lc_v} \
%{!msystem-v:%{mposix:-lc_p} -lc -lm}"
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/* Set the appropriate names for the Lynx startfiles. */
#undef STARTFILE_SPEC
#define STARTFILE_SPEC "%{p:%{mthreads:thread/pinit1.o%s}%{!mthreads:pinit1.o%s}}%{!p:%{msystem-v:vinit1.o%s -e_start}%{!msystem-v:%{mthreads:thread/init1.o%s}%{!mthreads:init1.o%s}}}"
#undef ENDFILE_SPEC
#define ENDFILE_SPEC "%{p:_etext.o%s}%{!p:initn.o%s}"
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/* Override the svr3 versions. */
#undef WCHAR_TYPE
#define WCHAR_TYPE "int"
#undef PTRDIFF_TYPE
#define PTRDIFF_TYPE "long int"
/* We want to output DBX (stabs) debugging information normally. */
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#define DBX_DEBUGGING_INFO 1
#undef PREFERRED_DEBUGGING_TYPE
#define PREFERRED_DEBUGGING_TYPE DBX_DEBUG
/* It is convenient to be able to generate standard coff debugging
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if requested via -gcoff. */
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#define SDB_DEBUGGING_INFO 1
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/* Be function-relative for block and source line stab directives. */
#define DBX_BLOCKS_FUNCTION_RELATIVE 1
/* but, to make this work, functions must appear prior to line info */
#define DBX_FUNCTION_FIRST
/* 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. */
#define DBX_OUTPUT_MAIN_SOURCE_FILE_END(FILE, FILENAME) \
fprintf (FILE, \
"\t.text\n\t.stabs \"\",%d,0,0,Letext\nLetext:\n", N_SO)
#undef ASM_OUTPUT_SOURCE_LINE
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#define ASM_OUTPUT_SOURCE_LINE(file, line, counter) \
{ fprintf (file, ".stabn 68,0,%d,.LM%d-", \
line, counter); \
assemble_name (file, \
XSTR (XEXP (DECL_RTL (current_function_decl), 0), 0)); \
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fprintf (file, "\n.LM%d:\n", counter); }
/* Handle #pragma pack and sometimes #pragma weak. */
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#define HANDLE_SYSV_PRAGMA 1
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/* Some additional command-line options. */
#define TARGET_THREADS (target_flags & MASK_THREADS)
#define MASK_THREADS 0x40000000
#define TARGET_POSIX (target_flags & MASK_POSIX)
#define MASK_POSIX 0x20000000
#define TARGET_SYSTEM_V (target_flags & MASK_SYSTEM_V)
#define MASK_SYSTEM_V 0x10000000
#undef SUBTARGET_SWITCHES
#define SUBTARGET_SWITCHES \
{"threads", MASK_THREADS}, \
{"posix", MASK_POSIX}, \
{"system-v", MASK_SYSTEM_V},
#undef SUBTARGET_OVERRIDE_OPTIONS
#define SUBTARGET_OVERRIDE_OPTIONS \
do { \
if (TARGET_SYSTEM_V && profile_flag) \
warning ("-msystem-v and -p are incompatible"); \
if (TARGET_SYSTEM_V && TARGET_THREADS) \
warning ("-msystem-v and -mthreads are incompatible"); \
} while (0)
/* Since init.o et al put all sorts of stuff into the init section,
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we can't use the standard init section support in crtbegin.o. */
#undef INIT_SECTION_ASM_OP
#undef EXTRA_SECTIONS
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#define EXTRA_SECTIONS in_fini
#undef EXTRA_SECTION_FUNCTIONS
#define EXTRA_SECTION_FUNCTIONS \
FINI_SECTION_FUNCTION
#undef CTORS_SECTION_ASM_OP
#define CTORS_SECTION_ASM_OP "\t.section\t.ctors"
#undef DTORS_SECTION_ASM_OP
#define DTORS_SECTION_ASM_OP "\t.section\t.dtors"
#undef DO_GLOBAL_CTORS_BODY
#undef DO_GLOBAL_DTORS_BODY
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/* LynxOS doesn't have mcount. */
#undef FUNCTION_PROFILER
#define FUNCTION_PROFILER(file, profile_label_no)