/* Definitions for 64-bit SPARC running Linux-based GNU systems with ELF.
- Copyright 1996, 1997, 1998, 2000, 2002 Free Software Foundation, Inc.
+ Copyright 1996, 1997, 1998, 2000, 2002, 2003, 2004, 2005, 2006, 2007
+ Free Software Foundation, Inc.
Contributed by David S. Miller (davem@caip.rutgers.edu)
-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)
+the Free Software Foundation; either version 3, 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 COPYING3. If not see
+<http://www.gnu.org/licenses/>. */
#define TARGET_OS_CPP_BUILTINS() \
do \
{ \
- builtin_define_std ("unix"); \
- builtin_define_std ("linux"); \
- builtin_define ("_LONGLONG"); \
- builtin_define ("__gnu_linux__"); \
- builtin_define ("__ELF__"); \
- builtin_assert ("system=unix"); \
- builtin_assert ("system=posix"); \
+ LINUX_TARGET_OS_CPP_BUILTINS(); \
+ if (TARGET_ARCH64) \
+ builtin_define ("_LONGLONG"); \
+ if (TARGET_ARCH32 \
+ && 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
-
-#undef MD_EXEC_PREFIX
-#undef MD_STARTFILE_PREFIX
-
-#if TARGET_CPU_DEFAULT == TARGET_CPU_v9 || TARGET_CPU_DEFAULT == TARGET_CPU_ultrasparc
+#if TARGET_CPU_DEFAULT == TARGET_CPU_v9 \
+ || TARGET_CPU_DEFAULT == TARGET_CPU_ultrasparc \
+ || TARGET_CPU_DEFAULT == TARGET_CPU_ultrasparc3 \
+ || TARGET_CPU_DEFAULT == TARGET_CPU_niagara \
+ || TARGET_CPU_DEFAULT == TARGET_CPU_niagara2
/* A 64 bit v9 compiler with stack-bias,
in a Medium/Low code model environment. */
+ MASK_STACK_BIAS + MASK_APP_REGS + MASK_FPU + MASK_LONG_DOUBLE_128)
#endif
-#undef ASM_CPU_DEFAULT_SPEC
-#define ASM_CPU_DEFAULT_SPEC "-Av9a"
-
-#ifdef SPARC_BI_ARCH
-
-#undef CPP_ARCH32_SPEC
-#define CPP_ARCH32_SPEC "%{mlong-double-128:-D__LONG_DOUBLE_128__}"
-
-#endif
-
-/* 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
-
-#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}}"
+/* This must be v9a not just v9 because by default we enable
+ -mvis. */
+#undef ASM_CPU64_DEFAULT_SPEC
+#define ASM_CPU64_DEFAULT_SPEC "-Av9a"
/* Provide a ENDFILE_SPEC appropriate for GNU/Linux. Here we tack on
the GNU/Linux magical crtend.o file (see crtstuff.c) which
object constructed before entering `main', followed by a normal
GNU/Linux "finalizer" file, `crtn.o'. */
-#undef ENDFILE_SPEC
-
+#undef ENDFILE_SPEC
#define ENDFILE_SPEC \
- "%{!shared:crtend.o%s} %{shared:crtendS.o%s} crtn.o%s\
+ "%{shared|pie:crtendS.o%s;:crtend.o%s} crtn.o%s\
%{ffast-math|funsafe-math-optimizations:crtfastmath.o%s}"
-/* 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, " (sparc64 GNU/Linux with ELF)");
#undef SPARC_DEFAULT_CMODEL
#define SPARC_DEFAULT_CMODEL CM_MEDLOW
-#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 WCHAR_TYPE
#define WCHAR_TYPE "int"
#undef LONG_DOUBLE_TYPE_SIZE
#define LONG_DOUBLE_TYPE_SIZE (TARGET_LONG_DOUBLE_128 ? 128 : 64)
-/* Constant which presents upper bound of the above value. */
-#undef MAX_LONG_DOUBLE_TYPE_SIZE
-#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. */
#if defined(__arch64__) || defined(__LONG_DOUBLE_128__)
#undef CPP_SUBTARGET_SPEC
#define CPP_SUBTARGET_SPEC "\
-%{fPIC:-D__PIC__ -D__pic__} \
-%{fpic:-D__PIC__ -D__pic__} \
%{posix:-D_POSIX_SOURCE} \
%{pthread:-D_REENTRANT} \
"
-#undef LIB_SPEC
-#define LIB_SPEC \
- "%{pthread:-lpthread} \
- %{shared:-lc} \
- %{!shared: %{mieee-fp:-lieee} %{profile:-lc_p}%{!profile:-lc}}"
-
/* 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
/* If ELF is the default format, we should not use /lib/elf. */
+#define GLIBC_DYNAMIC_LINKER32 "/lib/ld-linux.so.2"
+#define GLIBC_DYNAMIC_LINKER64 "/lib64/ld-linux.so.2"
+
#ifdef SPARC_BI_ARCH
#undef SUBTARGET_EXTRA_SPECS
{ "link_arch64", LINK_ARCH64_SPEC }, \
{ "link_arch_default", LINK_ARCH_DEFAULT_SPEC }, \
{ "link_arch", LINK_ARCH_SPEC },
-
-#define LINK_ARCH32_SPEC "-m elf32_sparc -Y P,/usr/lib %{shared:-shared} \
+
+#define LINK_ARCH32_SPEC "-m elf32_sparc -Y P,%R/usr/lib %{shared:-shared} \
%{!shared: \
%{!ibcs: \
%{!static: \
%{rdynamic:-export-dynamic} \
- %{!dynamic-linker:-dynamic-linker /lib/ld-linux.so.2}} \
+ %{!dynamic-linker:-dynamic-linker " LINUX_DYNAMIC_LINKER32 "}} \
%{static:-static}}} \
"
-#define LINK_ARCH64_SPEC "-m elf64_sparc -Y P,/usr/lib64 %{shared:-shared} \
+#define LINK_ARCH64_SPEC "-m elf64_sparc -Y P,%R/usr/lib64 %{shared:-shared} \
%{!shared: \
%{!ibcs: \
%{!static: \
%{rdynamic:-export-dynamic} \
- %{!dynamic-linker:-dynamic-linker /lib64/ld-linux.so.2}} \
+ %{!dynamic-linker:-dynamic-linker " LINUX_DYNAMIC_LINKER64 "}} \
%{static:-static}}} \
"
#undef CC1_SPEC
#if DEFAULT_ARCH32_P
-#define CC1_SPEC "\
+#define CC1_SPEC "%{profile:-p} \
%{sun4:} %{target:} \
%{mcypress:-mcpu=cypress} \
%{msparclite:-mcpu=sparclite} %{mf930:-mcpu=f930} %{mf934:-mcpu=f934} \
%{!mno-vis:%{!mcpu=v9:-mvis}}} \
"
#else
-#define CC1_SPEC "\
+#define CC1_SPEC "%{profile:-p} \
%{sun4:} %{target:} \
%{mcypress:-mcpu=cypress} \
%{msparclite:-mcpu=sparclite} %{mf930:-mcpu=f930} %{mf934:-mcpu=f934} \
"
#endif
+/* Support for a compile-time default CPU, et cetera. The rules are:
+ --with-cpu is ignored if -mcpu is specified.
+ --with-tune is ignored if -mtune is specified.
+ --with-float is ignored if -mhard-float, -msoft-float, -mfpu, or -mno-fpu
+ are specified.
+ In the SPARC_BI_ARCH compiler we cannot pass %{!mcpu=*:-mcpu=%(VALUE)}
+ here, otherwise say -mcpu=v7 would be passed even when -m64.
+ CC1_SPEC above takes care of this instead. */
+#undef OPTION_DEFAULT_SPECS
+#if DEFAULT_ARCH32_P
+#define OPTION_DEFAULT_SPECS \
+ {"cpu", "%{!m64:%{!mcpu=*:-mcpu=%(VALUE)}}" }, \
+ {"tune", "%{!mtune=*:-mtune=%(VALUE)}" }, \
+ {"float", "%{!msoft-float:%{!mhard-float:%{!fpu:%{!no-fpu:-m%(VALUE)-float}}}}" }
+#else
+#define OPTION_DEFAULT_SPECS \
+ {"cpu", "%{!m32:%{!mcpu=*:-mcpu=%(VALUE)}}" }, \
+ {"tune", "%{!mtune=*:-mtune=%(VALUE)}" }, \
+ {"float", "%{!msoft-float:%{!mhard-float:%{!fpu:%{!no-fpu:-m%(VALUE)-float}}}}" }
+#endif
+
#if DEFAULT_ARCH32_P
#define MULTILIB_DEFAULTS { "m32" }
#else
#else /* !SPARC_BI_ARCH */
#undef LINK_SPEC
-#define LINK_SPEC "-m elf64_sparc -Y P,/usr/lib64 %{shared:-shared} \
+#define LINK_SPEC "-m elf64_sparc -Y P,%R/usr/lib64 %{shared:-shared} \
%{!shared: \
%{!ibcs: \
%{!static: \
%{rdynamic:-export-dynamic} \
- %{!dynamic-linker:-dynamic-linker /lib64/ld-linux.so.2}} \
+ %{!dynamic-linker:-dynamic-linker " LINUX_DYNAMIC_LINKER64 "}} \
%{static:-static}}} \
%{mlittle-endian:-EL} \
%{!mno-relax:%{!r:-relax}} \
%{T} \
%{Ym,*} \
%{Wa,*:%*} \
--s %{fpic:-K PIC} %{fPIC:-K PIC} \
+-s %{fpic|fPIC|fpie|fPIE:-K PIC} \
%{mlittle-endian:-EL} \
%(asm_cpu) %(asm_arch) %(asm_relax)"
-/* Same as sparc.h */
-#undef DBX_REGISTER_NUMBER
-#define DBX_REGISTER_NUMBER(REGNO) (REGNO)
-
-/* System V Release 4 uses DWARF debugging info. Buf DWARF1 doesn't do
- 64-bit anything, so we use DWARF2. */
-
-#undef DWARF_DEBUGGING_INFO
-#define DWARF2_DEBUGGING_INFO 1
-#define DBX_DEBUGGING_INFO 1
-
#undef ASM_OUTPUT_ALIGNED_LOCAL
#define ASM_OUTPUT_ALIGNED_LOCAL(FILE, NAME, SIZE, ALIGN) \
do { \
#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.
/* #define DWARF_OFFSET_SIZE PTR_SIZE */
-#if defined(HAVE_LD_EH_FRAME_HDR)
-#define LINK_EH_SPEC "%{!static:--eh-frame-hdr} "
+#undef DITF_CONVERSION_LIBFUNCS
+#define DITF_CONVERSION_LIBFUNCS 1
+\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
-/* Do code reading to identify a signal frame, and set the frame
- state data appropriately. See unwind-dw2.c for the structs. */
-
-/* Handle multilib correctly. */
-#if defined(__arch64__)
-/* 64-bit SPARC version */
-#define MD_FALLBACK_FRAME_STATE_FOR(CONTEXT, FS, SUCCESS) \
- do { \
- unsigned int *pc_ = (CONTEXT)->ra; \
- long new_cfa_, i_; \
- long regs_off_, fpu_save_off_; \
- long this_cfa_, fpu_save_; \
- \
- if (pc_[0] != 0x82102065 /* mov NR_rt_sigreturn, %g1 */ \
- || pc_[1] != 0x91d0206d) /* ta 0x6d */ \
- break; \
- regs_off_ = 192 + 128; \
- fpu_save_off_ = regs_off_ + (16 * 8) + (3 * 8) + (2 * 4); \
- this_cfa_ = (long) (CONTEXT)->cfa; \
- new_cfa_ = *(long *)(((CONTEXT)->cfa) + (regs_off_ + (14 * 8))); \
- new_cfa_ += 2047; /* Stack bias */ \
- fpu_save_ = *(long *)((this_cfa_) + (fpu_save_off_)); \
- (FS)->cfa_how = CFA_REG_OFFSET; \
- (FS)->cfa_reg = 14; \
- (FS)->cfa_offset = new_cfa_ - (long) (CONTEXT)->cfa; \
- for (i_ = 1; i_ < 16; ++i_) \
- { \
- (FS)->regs.reg[i_].how = REG_SAVED_OFFSET; \
- (FS)->regs.reg[i_].loc.offset = \
- this_cfa_ + (regs_off_ + (i_ * 8)) - 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_ * 8) - new_cfa_; \
- } \
- if (fpu_save_) \
- { \
- for (i_ = 0; i_ < 64; ++i_) \
- { \
- if (i_ > 32 && (i_ & 0x1)) \
- continue; \
- (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_ + (16 * 8) + 8) - new_cfa_; \
- (FS)->retaddr_column = 0; \
- goto SUCCESS; \
- } while (0)
-#else
-/* 32-bit SPARC version */
-#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)
+#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],
+ sparc64 glibc provides it at [%g7 + 0x28]. */
+#define TARGET_THREAD_SSP_OFFSET (TARGET_ARCH64 ? 0x28 : 0x14)
#endif
+
+/* Define if long doubles should be mangled as 'g'. */
+#define TARGET_ALTERNATE_LONG_DOUBLE_MANGLING
+
+/* We use glibc _mcount for profiling. */
+#undef NO_PROFILE_COUNTERS
+#define NO_PROFILE_COUNTERS 1
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