-/* Definitions for SPARC running Linux with ELF
- Copyright (C) 1996, 1997 Free Software Foundation, Inc.
+/* Definitions for SPARC running Linux-based GNU systems with ELF.
+ Copyright (C) 1996, 1997, 1998, 1999, 2000, 2002, 2003, 2004, 2005, 2006
+ Free Software Foundation, Inc.
Contributed by Eddie C. Dost (ecd@skynet.be)
-This file is part of GNU CC.
+This file is part of GCC.
-GNU CC is free software; you can redistribute it and/or modify
+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.
-GNU CC is distributed in the hope that it will be useful,
+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 GNU CC; see the file COPYING. If not, write to
-the Free Software Foundation, 59 Temple Place - Suite 330,
-Boston, MA 02111-1307, USA. */
-
-#define LINUX_DEFAULT_ELF
-
-/* Don't assume anything about the header files. */
+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. */
+
+#define TARGET_OS_CPP_BUILTINS() \
+ do \
+ { \
+ builtin_define_std ("unix"); \
+ builtin_define_std ("linux"); \
+ builtin_define ("__gnu_linux__"); \
+ builtin_assert ("system=linux"); \
+ builtin_assert ("system=unix"); \
+ builtin_assert ("system=posix"); \
+ if (TARGET_LONG_DOUBLE_128) \
+ builtin_define ("__LONG_DOUBLE_128__"); \
+ } \
+ while (0)
+
+/* Don't assume anything about the header files. */
#define NO_IMPLICIT_EXTERN_C
-#undef HAVE_ATEXIT
-#define HAVE_ATEXIT
-
-/* Linux uses ctype from glibc.a. I am not sure how complete it is.
- For now, we play safe. It may change later. */
-
-#if 0
-#undef MULTIBYTE_CHARS
-#define MULTIBYTE_CHARS 1
-#endif
-
-#ifndef USE_GNULIBC_1
-#undef DEFAULT_VTABLE_THUNKS
-#define DEFAULT_VTABLE_THUNKS 1
-#endif
-
-/* Use stabs instead of DWARF debug format. */
-#define PREFERRED_DEBUGGING_TYPE DBX_DEBUG
-#include <sparc/sysv4.h>
-
#undef MD_EXEC_PREFIX
#undef MD_STARTFILE_PREFIX
-/* Output at beginning of assembler file. */
-/* The .file command should always begin the output. */
-#undef ASM_FILE_START
-#define ASM_FILE_START(FILE) \
- do { \
- output_file_directive (FILE, main_input_filename); \
- fprintf (FILE, "\t.version\t\"01.01\"\n"); \
- } while (0)
-
-/* Provide a STARTFILE_SPEC appropriate for Linux. Here we add
- the Linux magical crtbegin.o file (see crtstuff.c) which
+/* 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'. */
+ object constructed before entering `main'. */
#undef STARTFILE_SPEC
+#if defined HAVE_LD_PIE
+#define STARTFILE_SPEC \
+ "%{!shared: %{pg|p: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:gcrt1.o%s} %{!pg:%{p:gcrt1.o%s} %{!p:crt1.o%s}}}\
- crti.o%s %{!shared:crtbegin.o%s} %{shared:crtbeginS.o%s}"
+ "%{!shared: %{pg|p: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 Linux. Here we tack on
- the Linux magical crtend.o file (see crtstuff.c) which
+/* 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
- Linux "finalizer" file, `crtn.o'. */
+ GNU/Linux "finalizer" file, `crtn.o'. */
#undef ENDFILE_SPEC
#define ENDFILE_SPEC \
- "%{!shared:crtend.o%s} %{shared:crtendS.o%s} crtn.o%s"
+ "%{ffast-math|funsafe-math-optimizations:crtfastmath.o%s} \
+ %{shared|pie:crtendS.o%s;:crtend.o%s} crtn.o%s"
-/* This is for -profile to use -lc_p instead of -lc. */
+/* This is for -profile to use -lc_p instead of -lc. */
#undef CC1_SPEC
#define CC1_SPEC "%{profile:-p} \
%{sun4:} %{target:} \
%{mv8:-mcpu=v8} %{msupersparc:-mcpu=supersparc} \
"
+/* The GNU C++ standard library requires that these macros be defined. */
+#undef CPLUSPLUS_CPP_SPEC
+#define CPLUSPLUS_CPP_SPEC "-D_GNU_SOURCE %(cpp)"
+
#undef TARGET_VERSION
-#define TARGET_VERSION fprintf (stderr, " (sparc Linux/ELF)");
+#define TARGET_VERSION fprintf (stderr, " (sparc GNU/Linux with ELF)");
#undef SIZE_TYPE
#define SIZE_TYPE "unsigned int"
#define PTRDIFF_TYPE "int"
#undef WCHAR_TYPE
-#define WCHAR_TYPE "long int"
+#define WCHAR_TYPE "int"
#undef WCHAR_TYPE_SIZE
-#define WCHAR_TYPE_SIZE BITS_PER_WORD
-
-#undef CPP_PREDEFINES
-#define CPP_PREDEFINES "-D__ELF__ -Dunix -Dsparc -Dlinux -Asystem(unix) -Asystem(posix) -Acpu(sparc) -Amachine(sparc)"
-
-#undef CPP_SPEC
-#ifdef USE_GNULIBC_1
-#define CPP_SPEC "%{fPIC:-D__PIC__ -D__pic__} %{fpic:-D__PIC__ -D__pic__} %{msparclite:-D__sparclite__} %{mv8:-D__sparc_v8__} %{msupersparc:-D__supersparc__ -D__sparc_v8__} %{posix:-D_POSIX_SOURCE}"
-#else
-#define CPP_SPEC "%{fPIC:-D__PIC__ -D__pic__} %{fpic:-D__PIC__ -D__pic__} %{msparclite:-D__sparclite__} %{mv8:-D__sparc_v8__} %{msupersparc:-D__supersparc__ -D__sparc_v8__} %{posix:-D_POSIX_SOURCE} %{pthread:-D_REENTRANT}"
-#endif
+#define WCHAR_TYPE_SIZE 32
+
+#undef CPP_SUBTARGET_SPEC
+#define CPP_SUBTARGET_SPEC \
+"%{posix:-D_POSIX_SOURCE} %{pthread:-D_REENTRANT}"
#undef LIB_SPEC
-/* We no longer link with libc_p.a or libg.a by default. If you
- * want to profile or debug the Linux C library, please add
- * -lc_p or -ggdb to LDFLAGS at the link time, respectively.
- */
-#if 1
-#ifdef USE_GNULIBC_1
#define LIB_SPEC \
- "%{!shared: %{p:-lgmon} %{pg:-lgmon} %{profile:-lgmon -lc_p} \
- %{!profile:%{!ggdb:-lc} %{ggdb:-lg}}}"
-#else
-#define LIB_SPEC \
- "%{!shared: %{mieee-fp:-lieee} %{pthread:-lpthread} \
- %{profile:-lc_p} %{!profile: -lc}}"
-#endif
-#else
-#define LIB_SPEC \
- "%{!shared: \
- %{mieee-fp:-lieee} %{p:-lgmon -lc_p} %{pg:-lgmon -lc_p} \
- %{!p:%{!pg:%{!g*:-lc} %{g*:-lg}}}}"
-#endif
+ "%{pthread:-lpthread} \
+ %{shared:-lc} \
+ %{!shared:%{mieee-fp:-lieee} %{profile:-lc_p}%{!profile:-lc}}"
-/* Provide a LINK_SPEC appropriate for Linux. Here we provide support
+/* Provide a LINK_SPEC appropriate for GNU/Linux. Here we provide support
for the special GCC options -static and -shared, which allow us to
link things in one of these three modes by applying the appropriate
combinations of options at link-time. We like to support here for
When the -shared link option is used a final link is not being
done. */
-/* If ELF is the default format, we should not use /lib/elf. */
+/* If ELF is the default format, we should not use /lib/elf. */
-#undef LINK_SPEC
-#ifdef USE_GNULIBC_1
-#ifndef LINUX_DEFAULT_ELF
-#define LINK_SPEC "-m elf32_sparc -Y P,/usr/lib %{shared:-shared} \
- %{!shared: \
- %{!ibcs: \
- %{!static: \
- %{rdynamic:-export-dynamic} \
- %{!dynamic-linker:-dynamic-linker /lib/elf/ld-linux.so.1} \
- %{!rpath:-rpath /lib/elf/}} %{static:-static}}}"
+#define GLIBC_DYNAMIC_LINKER "/lib/ld-linux.so.2"
+#define UCLIBC_DYNAMIC_LINKER "/lib/ld-uClibc.so.0"
+#if UCLIBC_DEFAULT
+#define CHOOSE_DYNAMIC_LINKER(G, U) "%{mglibc:%{muclibc:%e-mglibc and -muclibc used together}" G ";:" U "}"
#else
-#define LINK_SPEC "-m elf32_sparc -Y P,/usr/lib %{shared:-shared} \
- %{!shared: \
- %{!ibcs: \
- %{!static: \
- %{rdynamic:-export-dynamic} \
- %{!dynamic-linker:-dynamic-linker /lib/ld-linux.so.1}} \
- %{static:-static}}}"
+#define CHOOSE_DYNAMIC_LINKER(G, U) "%{muclibc:%{mglibc:%e-mglibc and -muclibc used together}" U ";:" G "}"
#endif
-#else
+#define LINUX_DYNAMIC_LINKER \
+ CHOOSE_DYNAMIC_LINKER (GLIBC_DYNAMIC_LINKER, UCLIBC_DYNAMIC_LINKER)
+
+
+#undef LINK_SPEC
#define LINK_SPEC "-m elf32_sparc -Y P,/usr/lib %{shared:-shared} \
+ %{!mno-relax:%{!r:-relax}} \
%{!shared: \
%{!ibcs: \
%{!static: \
%{rdynamic:-export-dynamic} \
- %{!dynamic-linker:-dynamic-linker /lib/ld-linux.so.2}} \
+ %{!dynamic-linker:-dynamic-linker " LINUX_DYNAMIC_LINKER "}} \
%{static:-static}}}"
-#endif
/* The sun bundled assembler doesn't accept -Yd, (and neither does gas).
- It's safe to pass -s always, even if -g is not used. */
+ It's safe to pass -s always, even if -g is not used. */
#undef ASM_SPEC
#define ASM_SPEC \
- "%{V} %{v:%{!V:-V}} %{!Qn:-Qy} %{n} %{T} %{Ym,*} %{Wa,*:%*} -s %{fpic:-K PIC} %{fPIC:-K PIC}"
+ "%{V} %{v:%{!V:-V}} %{!Qn:-Qy} %{n} %{T} %{Ym,*} %{Wa,*:%*} -s \
+ %{fpic|fPIC|fpie|fPIE:-K PIC} %(asm_cpu) %(asm_relax)"
/* Same as sparc.h */
#undef DBX_REGISTER_NUMBER
#define DBX_REGISTER_NUMBER(REGNO) (REGNO)
-/* We use stabs-in-elf for debugging, because that is what the native
- toolchain uses. XXX */
-#undef PREFERRED_DEBUGGING_TYPE
-#define PREFERRED_DEBUGGING_TYPE DBX_DEBUG
-
#undef ASM_OUTPUT_ALIGNED_LOCAL
#define ASM_OUTPUT_ALIGNED_LOCAL(FILE, NAME, SIZE, ALIGN) \
do { \
} while (0)
#undef COMMON_ASM_OP
-#define COMMON_ASM_OP "\t.common"
-
-/* This is how to output a definition of an internal numbered label where
- PREFIX is the class of label and NUM is the number within the class. */
-
-#undef ASM_OUTPUT_INTERNAL_LABEL
-#define ASM_OUTPUT_INTERNAL_LABEL(FILE,PREFIX,NUM) \
- fprintf (FILE, ".L%s%d:\n", PREFIX, NUM)
-
-/* This is how to output a reference to an internal numbered label where
- PREFIX is the class of label and NUM is the number within the class. */
+#define COMMON_ASM_OP "\t.common\t"
-#undef ASM_OUTPUT_INTERNAL_LABELREF
-#define ASM_OUTPUT_INTERNAL_LABELREF(FILE,PREFIX,NUM) \
- fprintf (FILE, ".L%s%d", PREFIX, NUM)
+#undef LOCAL_LABEL_PREFIX
+#define LOCAL_LABEL_PREFIX "."
/* This is how to store into the string LABEL
the symbol_ref name of an internal numbered label where
#undef ASM_GENERATE_INTERNAL_LABEL
#define ASM_GENERATE_INTERNAL_LABEL(LABEL,PREFIX,NUM) \
- sprintf (LABEL, "*.L%s%d", PREFIX, NUM)
+ sprintf (LABEL, "*.L%s%ld", PREFIX, (long)(NUM))
\f
-#if 0
-/* Define for support of TFmode long double and REAL_ARITHMETIC.
- Sparc ABI says that long double is 4 words. Linux does not support
- long double yet. */
-#define LONG_DOUBLE_TYPE_SIZE 128
+/* Define for support of TFmode long double.
+ SPARC ABI says that long double is 4 words. */
+#define LONG_DOUBLE_TYPE_SIZE (TARGET_LONG_DOUBLE_128 ? 128 : 64)
+
+/* Define this to set long double type size to use in libgcc2.c, which can
+ not depend on target_flags. */
+#ifdef __LONG_DOUBLE_128__
+#define LIBGCC2_LONG_DOUBLE_TYPE_SIZE 128
+#else
+#define LIBGCC2_LONG_DOUBLE_TYPE_SIZE 64
+#endif
+
+#undef DITF_CONVERSION_LIBFUNCS
+#define DITF_CONVERSION_LIBFUNCS 1
+
+#if defined(HAVE_LD_EH_FRAME_HDR)
+#define LINK_EH_SPEC "%{!static:--eh-frame-hdr} "
#endif
+\f
+#ifdef HAVE_AS_TLS
+#undef TARGET_SUN_TLS
+#undef TARGET_GNU_TLS
+#define TARGET_SUN_TLS 0
+#define TARGET_GNU_TLS 1
+#endif
+\f
+/* Don't be different from other Linux platforms in this regard. */
+#define HANDLE_PRAGMA_PACK_PUSH_POP
+
+/* We use GNU ld so undefine this so that attribute((init_priority)) works. */
+#undef CTORS_SECTION_ASM_OP
+#undef DTORS_SECTION_ASM_OP
+
+/* Determine whether the entire c99 runtime is present in the
+ runtime library. */
+#define TARGET_C99_FUNCTIONS (OPTION_GLIBC)
+
+#define TARGET_POSIX_IO
+
+#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
+
+#define MD_UNWIND_SUPPORT "config/sparc/linux-unwind.h"
+
+/* Linux currently uses RMO in uniprocessor mode, which is equivalent to
+ TMO, and TMO in multiprocessor mode. But they reserve the right to
+ change their minds. */
+#undef SPARC_RELAXED_ORDERING
+#define SPARC_RELAXED_ORDERING true
+
+#undef NEED_INDICATE_EXEC_STACK
+#define NEED_INDICATE_EXEC_STACK 1
+
+#ifdef TARGET_LIBC_PROVIDES_SSP
+/* sparc glibc provides __stack_chk_guard in [%g7 + 0x14]. */
+#define TARGET_THREAD_SSP_OFFSET 0x14
+#endif
+
+/* Define if long doubles should be mangled as 'g'. */
+#define TARGET_ALTERNATE_LONG_DOUBLE_MANGLING