| /* Definitions for Linux-based GNU systems with ELF format |
| Copyright (C) 1995, 1996, 1997, 1998, 1999, 2000, 2003, 2004, 2005, 2006, |
| 2007, 2009 Free Software Foundation, Inc. |
| Contributed by Eric Youngdale. |
| Modified for stabs-in-ELF by H.J. Lu (hjl@lucon.org). |
| |
| This file is part of GCC. |
| |
| 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 3, or (at your option) |
| any later version. |
| |
| 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. |
| |
| Under Section 7 of GPL version 3, you are granted additional |
| permissions described in the GCC Runtime Library Exception, version |
| 3.1, as published by the Free Software Foundation. |
| |
| You should have received a copy of the GNU General Public License and |
| a copy of the GCC Runtime Library Exception along with this program; |
| see the files COPYING3 and COPYING.RUNTIME respectively. If not, see |
| <http://www.gnu.org/licenses/>. */ |
| |
| /* Don't assume anything about the header files. */ |
| #define NO_IMPLICIT_EXTERN_C |
| |
| #undef ASM_APP_ON |
| #define ASM_APP_ON "#APP\n" |
| |
| #undef ASM_APP_OFF |
| #define ASM_APP_OFF "#NO_APP\n" |
| |
| #undef MD_EXEC_PREFIX |
| #undef MD_STARTFILE_PREFIX |
| |
| /* Provide a STARTFILE_SPEC appropriate for GNU/Linux. Here we add |
| the GNU/Linux magical crtbegin.o file (see crtstuff.c) which |
| provides part of the support for getting C++ file-scope static |
| object constructed before entering `main'. */ |
| |
| #undef STARTFILE_SPEC |
| #if defined HAVE_LD_PIE |
| #define STARTFILE_SPEC \ |
| "%{!shared: %{pg|p|profile:gcrt1.o%s;pie:Scrt1.o%s;:crt1.o%s}} \ |
| crti.o%s %{static:crtbeginT.o%s;shared|pie:crtbeginS.o%s;:crtbegin.o%s}" |
| #else |
| #define STARTFILE_SPEC \ |
| "%{!shared: %{pg|p|profile:gcrt1.o%s;:crt1.o%s}} \ |
| crti.o%s %{static:crtbeginT.o%s;shared|pie:crtbeginS.o%s;:crtbegin.o%s}" |
| #endif |
| |
| /* Provide a ENDFILE_SPEC appropriate for GNU/Linux. Here we tack on |
| the GNU/Linux magical crtend.o file (see crtstuff.c) which |
| provides part of the support for getting C++ file-scope static |
| object constructed before entering `main', followed by a normal |
| GNU/Linux "finalizer" file, `crtn.o'. */ |
| |
| #undef ENDFILE_SPEC |
| #define ENDFILE_SPEC \ |
| "%{shared|pie:crtendS.o%s;:crtend.o%s} crtn.o%s" |
| |
| /* This is for -profile to use -lc_p instead of -lc. */ |
| #ifndef CC1_SPEC |
| #define CC1_SPEC "%{profile:-p}" |
| #endif |
| |
| /* The GNU C++ standard library requires that these macros be defined. */ |
| #undef CPLUSPLUS_CPP_SPEC |
| #define CPLUSPLUS_CPP_SPEC "-D_GNU_SOURCE %(cpp)" |
| |
| #undef LIB_SPEC |
| #define LIB_SPEC \ |
| "%{pthread:-lpthread} \ |
| %{shared:-lc} \ |
| %{!shared:%{mieee-fp:-lieee} %{profile:-lc_p}%{!profile:-lc}}" |
| |
| #define LINUX_TARGET_OS_CPP_BUILTINS() \ |
| do { \ |
| builtin_define ("__gnu_linux__"); \ |
| builtin_define_std ("linux"); \ |
| builtin_define_std ("unix"); \ |
| builtin_assert ("system=linux"); \ |
| builtin_assert ("system=unix"); \ |
| builtin_assert ("system=posix"); \ |
| } while (0) |
| |
| #if defined(HAVE_LD_EH_FRAME_HDR) |
| #define LINK_EH_SPEC "%{!static:--eh-frame-hdr} " |
| #endif |
| |
| /* Define this so we can compile MS code for use with WINE. */ |
| #define HANDLE_PRAGMA_PACK_PUSH_POP |
| |
| #undef LINK_GCC_C_SEQUENCE_SPEC |
| #define LINK_GCC_C_SEQUENCE_SPEC \ |
| "%{static:--start-group} %G %L %{static:--end-group}%{!static:%G}" |
| |
| /* Use --as-needed -lgcc_s for eh support. */ |
| #ifdef HAVE_LD_AS_NEEDED |
| #define USE_LD_AS_NEEDED 1 |
| #endif |
| |
| /* Determine which dynamic linker to use depending on whether GLIBC or |
| uClibc is the default C library and whether -muclibc or -mglibc has |
| been passed to change the default. */ |
| #if UCLIBC_DEFAULT |
| #define CHOOSE_DYNAMIC_LINKER(G, U) "%{mglibc:%{muclibc:%e-mglibc and -muclibc used together}" G ";:" U "}" |
| #else |
| #define CHOOSE_DYNAMIC_LINKER(G, U) "%{muclibc:%{mglibc:%e-mglibc and -muclibc used together}" U ";:" G "}" |
| #endif |
| |
| /* For most targets the following definitions suffice; |
| GLIBC_DYNAMIC_LINKER must be defined for each target using them, or |
| GLIBC_DYNAMIC_LINKER32 and GLIBC_DYNAMIC_LINKER64 for targets |
| supporting both 32-bit and 64-bit compilation. */ |
| #define UCLIBC_DYNAMIC_LINKER "/lib/ld-uClibc.so.0" |
| #define UCLIBC_DYNAMIC_LINKER32 "/lib/ld-uClibc.so.0" |
| #define UCLIBC_DYNAMIC_LINKER64 "/lib/ld64-uClibc.so.0" |
| #define LINUX_DYNAMIC_LINKER \ |
| CHOOSE_DYNAMIC_LINKER (GLIBC_DYNAMIC_LINKER, UCLIBC_DYNAMIC_LINKER) |
| #define LINUX_DYNAMIC_LINKER32 \ |
| CHOOSE_DYNAMIC_LINKER (GLIBC_DYNAMIC_LINKER32, UCLIBC_DYNAMIC_LINKER32) |
| #define LINUX_DYNAMIC_LINKER64 \ |
| CHOOSE_DYNAMIC_LINKER (GLIBC_DYNAMIC_LINKER64, UCLIBC_DYNAMIC_LINKER64) |
| |
| /* Determine whether the entire c99 runtime |
| is present in the runtime library. */ |
| #define TARGET_C99_FUNCTIONS (OPTION_GLIBC) |
| |
| /* Whether we have sincos that follows the GNU extension. */ |
| #define TARGET_HAS_SINCOS (OPTION_GLIBC) |
| |
| #define TARGET_POSIX_IO |