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Diffstat (limited to 'contrib/gcc/config/lynx.h')
| -rw-r--r-- | contrib/gcc/config/lynx.h | 180 |
1 files changed, 180 insertions, 0 deletions
diff --git a/contrib/gcc/config/lynx.h b/contrib/gcc/config/lynx.h new file mode 100644 index 0000000..04919d4 --- /dev/null +++ b/contrib/gcc/config/lynx.h @@ -0,0 +1,180 @@ +/* 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) |
