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/* Definitions for Linux-based GNU systems with ELF format
Copyright (C) 1995, 1996, 1997, 1998, 1999, 2000, 2003, 2004, 2005, 2006
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 2, 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.
You should have received a copy of the GNU General Public License
along with GCC; see the file COPYING. If not, write to
the Free Software Foundation, 51 Franklin Street, Fifth Floor,
Boston, MA 02110-1301, USA. */
/* 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
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