/* Definitions for SPARC running Linux-based GNU systems with ELF.
- Copyright (C) 1996, 1997, 1998, 1999, 2000, 2002 Free Software Foundation, Inc.
+ 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. */
+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=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)
-#define LINUX_DEFAULT_ELF
-
/* Don't assume anything about the header files. */
#define NO_IMPLICIT_EXTERN_C
-/* GNU/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
-
#undef MD_EXEC_PREFIX
#undef MD_STARTFILE_PREFIX
object constructed before entering `main'. */
#undef STARTFILE_SPEC
-#ifdef USE_GNULIBC_1
+#if defined HAVE_LD_PIE
#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;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 %{static:crtbeginT.o%s}\
- %{!static:%{!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 GNU/Linux. Here we tack on
#undef ENDFILE_SPEC
#define ENDFILE_SPEC \
"%{ffast-math|funsafe-math-optimizations:crtfastmath.o%s} \
- %{!shared:crtend.o%s} %{shared:crtendS.o%s} crtn.o%s"
+ %{shared|pie:crtendS.o%s;:crtend.o%s} crtn.o%s"
/* This is for -profile to use -lc_p instead of -lc. */
#undef CC1_SPEC
#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"
#define WCHAR_TYPE_SIZE 32
#undef CPP_SUBTARGET_SPEC
-#ifdef USE_GNULIBC_1
-#define CPP_SUBTARGET_SPEC \
-"%{fPIC:-D__PIC__ -D__pic__} %{fpic:-D__PIC__ -D__pic__} %{posix:-D_POSIX_SOURCE} \
-%{mlong-double-128:-D__LONG_DOUBLE_128__}"
-#else
#define CPP_SUBTARGET_SPEC \
-"%{fPIC:-D__PIC__ -D__pic__} %{fpic:-D__PIC__ -D__pic__} %{posix:-D_POSIX_SOURCE} \
-%{pthread:-D_REENTRANT} %{mlong-double-128:-D__LONG_DOUBLE_128__}"
-#endif
+"%{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 GNU/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 \
"%{pthread:-lpthread} \
%{shared:-lc} \
%{!shared:%{mieee-fp:-lieee} %{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
/* Provide a LINK_SPEC appropriate for GNU/Linux. Here we provide support
for the special GCC options -static and -shared, which allow us to
/* 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. */
#undef ASM_SPEC
#define ASM_SPEC \
- "%{V} %{v:%{!V:-V}} %{!Qn:-Qy} %{n} %{T} %{Ym,*} %{Wa,*:%*} -s %{fpic:-K PIC} \
- %{fPIC:-K PIC} %(asm_cpu) %(asm_relax)"
+ "%{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
#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.
SPARC ABI says that long double is 4 words. */
#define LONG_DOUBLE_TYPE_SIZE (TARGET_LONG_DOUBLE_128 ? 128 : 64)
-/* Constant which presents upper bound of the above value. */
-#define MAX_LONG_DOUBLE_TYPE_SIZE 128
-
/* 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 64
#endif
-#if !defined(USE_GNULIBC_1) && defined(HAVE_LD_EH_FRAME_HDR)
+#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
#undef CTORS_SECTION_ASM_OP
#undef DTORS_SECTION_ASM_OP
-/* Do code reading to identify a signal frame, and set the frame
- state data appropriately. See unwind-dw2.c for the structs. */
-
-#define MD_FALLBACK_FRAME_STATE_FOR(CONTEXT, FS, SUCCESS) \
- do { \
- unsigned int *pc_ = (CONTEXT)->ra; \
- int new_cfa_, i_, oldstyle_; \
- int regs_off_, fpu_save_off_; \
- int fpu_save_, this_cfa_; \
- \
- if (pc_[1] != 0x91d02010) /* ta 0x10 */ \
- break; \
- if (pc_[0] == 0x821020d8) /* mov NR_sigreturn, %g1 */ \
- oldstyle_ = 1; \
- else if (pc_[0] == 0x82102065) /* mov NR_rt_sigreturn, %g1 */ \
- oldstyle_ = 0; \
- else \
- break; \
- if (oldstyle_) \
- { \
- regs_off_ = 96; \
- fpu_save_off_ = regs_off_ + (4 * 4) + (16 * 4); \
- } \
- else \
- { \
- regs_off_ = 96 + 128; \
- fpu_save_off_ = regs_off_ + (4 * 4) + (16 * 4) + (2 * 4); \
- } \
- this_cfa_ = (int) (CONTEXT)->cfa; \
- new_cfa_ = *(int *)(((CONTEXT)->cfa) + (regs_off_+(4*4)+(14 * 4))); \
- fpu_save_ = *(int *)((this_cfa_) + (fpu_save_off_)); \
- (FS)->cfa_how = CFA_REG_OFFSET; \
- (FS)->cfa_reg = 14; \
- (FS)->cfa_offset = new_cfa_ - (int) (CONTEXT)->cfa; \
- for (i_ = 1; i_ < 16; ++i_) \
- { \
- if (i_ == 14) \
- continue; \
- (FS)->regs.reg[i_].how = REG_SAVED_OFFSET; \
- (FS)->regs.reg[i_].loc.offset = \
- this_cfa_ + (regs_off_+(4 * 4)+(i_ * 4)) - new_cfa_; \
- } \
- for (i_ = 0; i_ < 16; ++i_) \
- { \
- (FS)->regs.reg[i_ + 16].how = REG_SAVED_OFFSET; \
- (FS)->regs.reg[i_ + 16].loc.offset = \
- this_cfa_ + (i_ * 4) - new_cfa_; \
- } \
- if (fpu_save_) \
- { \
- for (i_ = 0; i_ < 32; ++i_) \
- { \
- (FS)->regs.reg[i_ + 32].how = REG_SAVED_OFFSET; \
- (FS)->regs.reg[i_ + 32].loc.offset = \
- (fpu_save_ + (i_ * 4)) - new_cfa_; \
- } \
- } \
- /* Stick return address into %g0, same trick Alpha uses. */ \
- (FS)->regs.reg[0].how = REG_SAVED_OFFSET; \
- (FS)->regs.reg[0].loc.offset = this_cfa_+(regs_off_+4)-new_cfa_; \
- (FS)->retaddr_column = 0; \
- goto SUCCESS; \
- } while (0)
+/* 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
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