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/* Target independent definitions for LynxOS.
Copyright (C) 1993, 1994, 1995 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. */
/* LynxOS is a multi-platform Unix, similar to SVR3, but not identical.
We can get quite a bit from generic svr3, but have to do some overrides. */
#include "svr3.h"
/* 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}"
/* No asm spec needed, since using GNU assembler always. */
/* 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}"
/* 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}"
/* 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. */
#define DBX_DEBUGGING_INFO
#undef PREFERRED_DEBUGGING_TYPE
#define PREFERRED_DEBUGGING_TYPE DBX_DEBUG
/* It is convenient to be able to generate standard coff debugging
if requested via -gcoff. */
#define SDB_DEBUGGING_INFO
/* 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
#define ASM_OUTPUT_SOURCE_LINE(file, line) \
{ 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; }
/* Handle #pragma pack and sometimes #pragma weak. */
#define HANDLE_SYSV_PRAGMA
/* 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)
/* Define this so that C++ destructors will use atexit, since LynxOS
calls exit after main returns. */
#define HAVE_ATEXIT
/* Since init.o et al put all sorts of stuff into the init section,
we can't use the standard init section support in crtbegin.o. */
#undef INIT_SECTION_ASM_OP
#undef EXTRA_SECTIONS
#define EXTRA_SECTIONS in_const, in_bss, in_ctors, in_dtors, in_fini,
#undef EXTRA_SECTION_FUNCTIONS
#define EXTRA_SECTION_FUNCTIONS \
CONST_SECTION_FUNCTION \
BSS_SECTION_FUNCTION \
CTORS_SECTION_FUNCTION \
DTORS_SECTION_FUNCTION \
FINI_SECTION_FUNCTION
#undef CTORS_SECTION_ASM_OP
#define CTORS_SECTION_ASM_OP ".section\t.ctors"
#undef DTORS_SECTION_ASM_OP
#define DTORS_SECTION_ASM_OP ".section\t.dtors"
#define INT_ASM_OP ".long"
/* A C statement (sans semicolon) to output an element in the table of
global constructors. */
#undef ASM_OUTPUT_CONSTRUCTOR
#define ASM_OUTPUT_CONSTRUCTOR(FILE,NAME) \
do { \
ctors_section (); \
fprintf (FILE, "\t%s\t ", INT_ASM_OP); \
assemble_name (FILE, NAME); \
fprintf (FILE, "\n"); \
} while (0)
/* A C statement (sans semicolon) to output an element in the table of
global destructors. */
#undef ASM_OUTPUT_DESTRUCTOR
#define ASM_OUTPUT_DESTRUCTOR(FILE,NAME) \
do { \
dtors_section (); \
fprintf (FILE, "\t%s\t ", INT_ASM_OP); \
assemble_name (FILE, NAME); \
fprintf (FILE, "\n"); \
} while (0)
#undef DO_GLOBAL_CTORS_BODY
#undef DO_GLOBAL_DTORS_BODY
/* LynxOS doesn't have mcount. */
#undef FUNCTION_PROFILER
#define FUNCTION_PROFILER(file, profile_label_no)
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