/* Definitions for SPARC running Linux-based GNU systems with ELF.
- Copyright (C) 1996, 1997, 1998, 1999, 2000, 2002, 2003, 2004
+ Copyright (C) 1996, 1997, 1998, 1999, 2000, 2002, 2003, 2004, 2005, 2006
Free Software Foundation, Inc.
Contributed by Eddie C. Dost (ecd@skynet.be)
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, 59 Temple Place - Suite 330,
-Boston, MA 02111-1307, USA. */
+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"); \
+ 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)
#undef TARGET_VERSION
#define TARGET_VERSION fprintf (stderr, " (sparc GNU/Linux with ELF)");
-#undef SUBTARGET_SWITCHES
-#define SUBTARGET_SWITCHES \
-{"long-double-64", -MASK_LONG_DOUBLE_128, N_("Use 64 bit long doubles") }, \
-{"long-double-128", MASK_LONG_DOUBLE_128, N_("Use 128 bit long doubles") },
-
#undef SIZE_TYPE
#define SIZE_TYPE "unsigned int"
#undef CPP_SUBTARGET_SPEC
#define CPP_SUBTARGET_SPEC \
-"%{fPIC|fPIE|fpic|fpie:-D__PIC__ -D__pic__} %{posix:-D_POSIX_SOURCE} \
-%{pthread:-D_REENTRANT} %{mlong-double-128:-D__LONG_DOUBLE_128__}"
+"%{posix:-D_POSIX_SOURCE} %{pthread:-D_REENTRANT}"
#undef LIB_SPEC
#define LIB_SPEC \
/* If ELF is the default format, we should not use /lib/elf. */
+#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 CHOOSE_DYNAMIC_LINKER(G, U) "%{muclibc:%{mglibc:%e-mglibc and -muclibc used together}" U ";:" G "}"
+#endif
+#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}} \
%{!ibcs: \
%{!static: \
%{rdynamic:-export-dynamic} \
- %{!dynamic-linker:-dynamic-linker /lib/ld-linux.so.2}} \
+ %{!dynamic-linker:-dynamic-linker " LINUX_DYNAMIC_LINKER "}} \
%{static:-static}}}"
/* The sun bundled assembler doesn't accept -Yd, (and neither does gas).
#undef LOCAL_LABEL_PREFIX
#define LOCAL_LABEL_PREFIX "."
-/* 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. */
-
-#undef ASM_OUTPUT_INTERNAL_LABELREF
-#define ASM_OUTPUT_INTERNAL_LABELREF(FILE,PREFIX,NUM) \
- fprintf (FILE, ".L%s%d", PREFIX, NUM)
-
/* This is how to store into the string LABEL
the symbol_ref name of an internal numbered label where
PREFIX is the class of label and NUM is the number within the class.
#undef CTORS_SECTION_ASM_OP
#undef DTORS_SECTION_ASM_OP
-#define TARGET_ASM_FILE_END file_end_indicate_exec_stack
-
-/* Determine whether the the entire c99 runtime is present in the
+/* Determine whether the entire c99 runtime is present in the
runtime library. */
-#define TARGET_C99_FUNCTIONS 1
+#define TARGET_C99_FUNCTIONS (OPTION_GLIBC)
-#define TARGET_HAS_F_SETLKW
+#define TARGET_POSIX_IO
#undef LINK_GCC_C_SEQUENCE_SPEC
#define LINK_GCC_C_SEQUENCE_SPEC \
#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