linux.h revision 117395
1235323Sadrian/* Definitions for Linux-based GNU systems with ELF format 2235323Sadrian Copyright (C) 1995, 1996, 1997, 1998, 1999, 2000 Free Software Foundation, Inc. 3235323Sadrian Contributed by Eric Youngdale. 4235323Sadrian Modified for stabs-in-ELF by H.J. Lu (hjl@lucon.org). 5235323Sadrian 6235323SadrianThis file is part of GNU CC. 7235323Sadrian 8235323SadrianGNU CC is free software; you can redistribute it and/or modify 9235323Sadrianit under the terms of the GNU General Public License as published by 10235323Sadrianthe Free Software Foundation; either version 2, or (at your option) 11235323Sadrianany later version. 12235323Sadrian 13235323SadrianGNU CC is distributed in the hope that it will be useful, 14235323Sadrianbut WITHOUT ANY WARRANTY; without even the implied warranty of 15235323SadrianMERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 16235323SadrianGNU General Public License for more details. 17235323Sadrian 18235323SadrianYou should have received a copy of the GNU General Public License 19235323Sadrianalong with GNU CC; see the file COPYING. If not, write to 20235323Sadrianthe Free Software Foundation, 59 Temple Place - Suite 330, 21235323SadrianBoston, MA 02111-1307, USA. */ 22235323Sadrian 23235323Sadrian/* Don't assume anything about the header files. */ 24235323Sadrian#define NO_IMPLICIT_EXTERN_C 25235323Sadrian 26235323Sadrian/* GNU/Linux uses ctype from glibc.a. I am not sure how complete it is. 27235323Sadrian For now, we play safe. It may change later. */ 28235323Sadrian 29235323Sadrian#if 0 30235323Sadrian#undef MULTIBYTE_CHARS 31235323Sadrian#define MULTIBYTE_CHARS 1 32235323Sadrian#endif 33235323Sadrian 34235323Sadrian#undef ASM_APP_ON 35235323Sadrian#define ASM_APP_ON "#APP\n" 36235323Sadrian 37235323Sadrian#undef ASM_APP_OFF 38235323Sadrian#define ASM_APP_OFF "#NO_APP\n" 39235323Sadrian 40235323Sadrian#undef MD_EXEC_PREFIX 41235323Sadrian#undef MD_STARTFILE_PREFIX 42235323Sadrian 43235323Sadrian/* Provide a STARTFILE_SPEC appropriate for GNU/Linux. Here we add 44235323Sadrian the GNU/Linux magical crtbegin.o file (see crtstuff.c) which 45235323Sadrian provides part of the support for getting C++ file-scope static 46235323Sadrian object constructed before entering `main'. */ 47235323Sadrian 48235323Sadrian#undef STARTFILE_SPEC 49235323Sadrian#ifdef USE_GNULIBC_1 50235323Sadrian#define STARTFILE_SPEC \ 51235323Sadrian "%{!shared: \ 52235323Sadrian %{pg:gcrt1.o%s} %{!pg:%{p:gcrt1.o%s} \ 53235323Sadrian %{!p:%{profile:gcrt1.o%s} \ 54235323Sadrian %{!profile:crt1.o%s}}}} \ 55235323Sadrian crti.o%s %{!shared:crtbegin.o%s} %{shared:crtbeginS.o%s}" 56235323Sadrian#else 57235323Sadrian#define STARTFILE_SPEC \ 58235323Sadrian "%{!shared: \ 59235323Sadrian %{pg:gcrt1.o%s} %{!pg:%{p:gcrt1.o%s} \ 60235323Sadrian %{!p:%{profile:gcrt1.o%s} \ 61235323Sadrian %{!profile:crt1.o%s}}}} \ 62235323Sadrian crti.o%s %{static:crtbeginT.o%s}\ 63235323Sadrian %{!static:%{!shared:crtbegin.o%s} %{shared:crtbeginS.o%s}}" 64235323Sadrian#endif 65235323Sadrian 66235323Sadrian/* Provide a ENDFILE_SPEC appropriate for GNU/Linux. Here we tack on 67235323Sadrian the GNU/Linux magical crtend.o file (see crtstuff.c) which 68235323Sadrian provides part of the support for getting C++ file-scope static 69235323Sadrian object constructed before entering `main', followed by a normal 70235323Sadrian GNU/Linux "finalizer" file, `crtn.o'. */ 71235323Sadrian 72235323Sadrian#undef ENDFILE_SPEC 73235323Sadrian#define ENDFILE_SPEC \ 74235323Sadrian "%{!shared:crtend.o%s} %{shared:crtendS.o%s} crtn.o%s" 75235323Sadrian 76235323Sadrian/* This is for -profile to use -lc_p instead of -lc. */ 77235323Sadrian#ifndef CC1_SPEC 78235323Sadrian#define CC1_SPEC "%{profile:-p}" 79235323Sadrian#endif 80235323Sadrian 81235323Sadrian/* The GNU C++ standard library requires that these macros be defined. */ 82235323Sadrian#undef CPLUSPLUS_CPP_SPEC 83235323Sadrian#define CPLUSPLUS_CPP_SPEC "-D_GNU_SOURCE %(cpp)" 84235323Sadrian 85235323Sadrian#undef LIB_SPEC 86235323Sadrian/* We no longer link with libc_p.a or libg.a by default. If you 87235323Sadrian want to profile or debug the GNU/Linux C library, please add 88235323Sadrian -profile or -ggdb to LDFLAGS at the link time, respectively. */ 89235323Sadrian#if 1 90235323Sadrian#ifdef USE_GNULIBC_1 91235323Sadrian#define LIB_SPEC \ 92235323Sadrian "%{!shared: %{p:-lgmon} %{pg:-lgmon} %{profile:-lgmon -lc_p} \ 93235323Sadrian %{!profile:%{!ggdb:-lc} %{ggdb:-lg}}}" 94235323Sadrian#else 95235323Sadrian#define LIB_SPEC \ 96235323Sadrian "%{pthread:-lpthread} \ 97235323Sadrian %{shared:-lc} \ 98235323Sadrian %{!shared:%{mieee-fp:-lieee} %{profile:-lc_p}%{!profile:-lc}}" 99235323Sadrian#endif 100235323Sadrian#else 101235323Sadrian#define LIB_SPEC \ 102235323Sadrian "%{!shared: \ 103235323Sadrian %{p:-lgmon -lc_p} %{pg:-lgmon -lc_p} \ 104235323Sadrian %{!p:%{!pg:%{!g*:-lc} %{g*:-lg}}}}" 105235323Sadrian#endif 106235323Sadrian 107235323Sadrian#if !defined(USE_GNULIBC_1) && defined(HAVE_LD_EH_FRAME_HDR) 108235323Sadrian#define LINK_EH_SPEC "%{!static:--eh-frame-hdr} " 109235323Sadrian#endif 110235323Sadrian 111235323Sadrian/* Define this so we can compile MS code for use with WINE. */ 112235323Sadrian#define HANDLE_PRAGMA_PACK_PUSH_POP 113235323Sadrian 114235323Sadrian#define TARGET_HAS_F_SETLKW 115235323Sadrian