/* Definitions for 64-bit SPARC running Linux-based GNU systems with ELF.
- Copyright 1996, 1997, 1998 Free Software Foundation, Inc.
+ Copyright 1996, 1997, 1998, 2000, 2002, 2003 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)
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
+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. */
-/* ??? bi-architecture support will require changes to the linker
- related specs, among perhaps other things (multilibs). */
-/* #define SPARC_BI_ARCH */
-
-#define LINUX_DEFAULT_ELF
-
-/* Don't assume anything about the header files. */
+#define TARGET_OS_CPP_BUILTINS() \
+ do \
+ { \
+ builtin_define_std ("unix"); \
+ builtin_define_std ("linux"); \
+ builtin_define ("_LONGLONG"); \
+ builtin_define ("__gnu_linux__"); \
+ builtin_assert ("system=linux"); \
+ builtin_assert ("system=unix"); \
+ builtin_assert ("system=posix"); \
+ } \
+ while (0)
+
+/* Don't assume anything about the header files. */
#define NO_IMPLICIT_EXTERN_C
-#undef HAVE_ATEXIT
-#define HAVE_ATEXIT
-
-#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)
-
+#if TARGET_CPU_DEFAULT == TARGET_CPU_v9 || TARGET_CPU_DEFAULT == TARGET_CPU_ultrasparc
+/* A 64 bit v9 compiler with stack-bias,
+ in a Medium/Low code model environment. */
+
+#undef TARGET_DEFAULT
+#define TARGET_DEFAULT \
+ (MASK_V9 + MASK_PTR64 + MASK_64BIT /* + MASK_HARD_QUAD */ \
+ + 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'. */
+ object constructed before entering `main'. */
#undef STARTFILE_SPEC
+
+#ifdef 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;:crtbeginS.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;:crtbeginS.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
GNU/Linux "finalizer" file, `crtn.o'. */
#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)");
-/* A 64 bit v9 compiler with stack-bias,
- in a Medium/Anywhere code model environment. */
-
-#undef TARGET_DEFAULT
-#define TARGET_DEFAULT \
- (MASK_V9 + MASK_PTR64 + MASK_64BIT /* + MASK_HARD_QUAD */ \
- + MASK_STACK_BIAS + MASK_APP_REGS + MASK_EPILOGUE + MASK_FPU)
-
/* The default code model. */
#undef SPARC_DEFAULT_CMODEL
-#define SPARC_DEFAULT_CMODEL CM_MEDANY
+#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 "long int"
-
+#define WCHAR_TYPE "int"
+
#undef WCHAR_TYPE_SIZE
-#define WCHAR_TYPE_SIZE BITS_PER_WORD
+#define WCHAR_TYPE_SIZE 32
+/* Define for support of TFmode long double.
+ SPARC ABI says that long double is 4 words. */
#undef LONG_DOUBLE_TYPE_SIZE
-#define LONG_DOUBLE_TYPE_SIZE 128
-
-#undef CPP_PREDEFINES
-#define CPP_PREDEFINES "-D__ELF__ -Dunix -Dsparc -Dlinux -Asystem(unix) -Asystem(posix)"
+#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. */
+#if defined(__arch64__) || defined(__LONG_DOUBLE_128__)
+#define LIBGCC2_LONG_DOUBLE_TYPE_SIZE 128
+#else
+#define LIBGCC2_LONG_DOUBLE_TYPE_SIZE 64
+#endif
#undef CPP_SUBTARGET_SPEC
#define CPP_SUBTARGET_SPEC "\
-%{fPIC:-D__PIC__ -D__pic__} \
-%{fpic:-D__PIC__ -D__pic__} \
+%{fPIC|fpic|fPIE|fpie:-D__PIC__ -D__pic__} \
%{posix:-D_POSIX_SOURCE} \
%{pthread:-D_REENTRANT} \
"
#undef LIB_SPEC
#define LIB_SPEC \
- "%{shared: -lc} \
- %{!shared: %{mieee-fp:-lieee} %{pthread:-lpthread} \
- %{profile:-lc_p} %{!profile: -lc}}"
+ "%{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
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. */
+
+#ifdef SPARC_BI_ARCH
+
+#undef SUBTARGET_EXTRA_SPECS
+#define SUBTARGET_EXTRA_SPECS \
+ { "link_arch32", LINK_ARCH32_SPEC }, \
+ { "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} \
+ %{!shared: \
+ %{!ibcs: \
+ %{!static: \
+ %{rdynamic:-export-dynamic} \
+ %{!dynamic-linker:-dynamic-linker /lib/ld-linux.so.2}} \
+ %{static:-static}}} \
+"
+
+#define LINK_ARCH64_SPEC "-m elf64_sparc -Y P,/usr/lib64 %{shared:-shared} \
+ %{!shared: \
+ %{!ibcs: \
+ %{!static: \
+ %{rdynamic:-export-dynamic} \
+ %{!dynamic-linker:-dynamic-linker /lib64/ld-linux.so.2}} \
+ %{static:-static}}} \
+"
+
+#define LINK_ARCH_SPEC "\
+%{m32:%(link_arch32)} \
+%{m64:%(link_arch64)} \
+%{!m32:%{!m64:%(link_arch_default)}} \
+"
+
+#define LINK_ARCH_DEFAULT_SPEC \
+(DEFAULT_ARCH32_P ? LINK_ARCH32_SPEC : LINK_ARCH64_SPEC)
#undef LINK_SPEC
-#define LINK_SPEC "-m elf64_sparc -Y P,/usr/lib %{shared:-shared} \
+#define LINK_SPEC "\
+%(link_arch) \
+%{mlittle-endian:-EL} \
+%{!mno-relax:%{!r:-relax}} \
+"
+
+#undef CC1_SPEC
+#if DEFAULT_ARCH32_P
+#define CC1_SPEC "\
+%{sun4:} %{target:} \
+%{mcypress:-mcpu=cypress} \
+%{msparclite:-mcpu=sparclite} %{mf930:-mcpu=f930} %{mf934:-mcpu=f934} \
+%{mv8:-mcpu=v8} %{msupersparc:-mcpu=supersparc} \
+%{m32:%{m64:%emay not use both -m32 and -m64}} \
+%{m64:-mptr64 -mstack-bias -mlong-double-128 \
+ %{!mcpu*:%{!mcypress:%{!msparclite:%{!mf930:%{!mf934:%{!mv8:%{!msupersparc:-mcpu=ultrasparc}}}}}}} \
+ %{!mno-vis:%{!mcpu=v9:-mvis}}} \
+"
+#else
+#define CC1_SPEC "\
+%{sun4:} %{target:} \
+%{mcypress:-mcpu=cypress} \
+%{msparclite:-mcpu=sparclite} %{mf930:-mcpu=f930} %{mf934:-mcpu=f934} \
+%{mv8:-mcpu=v8} %{msupersparc:-mcpu=supersparc} \
+%{m32:%{m64:%emay not use both -m32 and -m64}} \
+%{m32:-mptr32 -mno-stack-bias %{!mlong-double-128:-mlong-double-64} \
+ %{!mcpu*:%{!mcypress:%{!msparclite:%{!mf930:%{!mf934:%{!mv8:%{!msupersparc:-mcpu=cypress}}}}}}}} \
+%{!m32:%{!mcpu*:-mcpu=ultrasparc}} \
+%{!mno-vis:%{!m32:%{!mcpu=v9:-mvis}}} \
+"
+#endif
+
+#if DEFAULT_ARCH32_P
+#define MULTILIB_DEFAULTS { "m32" }
+#else
+#define MULTILIB_DEFAULTS { "m64" }
+#endif
+
+#else /* !SPARC_BI_ARCH */
+
+#undef LINK_SPEC
+#define LINK_SPEC "-m elf64_sparc -Y P,/usr/lib64 %{shared:-shared} \
%{!shared: \
%{!ibcs: \
%{!static: \
%{rdynamic:-export-dynamic} \
- %{!dynamic-linker:-dynamic-linker /lib/ld-linux64.so.2}} \
+ %{!dynamic-linker:-dynamic-linker /lib64/ld-linux.so.2}} \
%{static:-static}}} \
%{mlittle-endian:-EL} \
+%{!mno-relax:%{!r:-relax}} \
"
+#endif /* !SPARC_BI_ARCH */
+
/* 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} \
%{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_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 DWARF2_DEBUGGING_INFO
-#undef DWARF_DEBUGGING_INFO
-#undef DBX_DEBUGGING_INFO
-#define DWARF2_DEBUGGING_INFO
-#define DBX_DEBUGGING_INFO
-
-#undef PREFERRED_DEBUGGING_TYPE
-#define PREFERRED_DEBUGGING_TYPE DWARF2_DEBUG
+#define DWARF2_DEBUGGING_INFO 1
+#define DBX_DEBUGGING_INFO 1
#undef ASM_OUTPUT_ALIGNED_LOCAL
#define ASM_OUTPUT_ALIGNED_LOCAL(FILE, NAME, SIZE, ALIGN) \
} while (0)
#undef COMMON_ASM_OP
-#define COMMON_ASM_OP "\t.common"
+#define COMMON_ASM_OP "\t.common\t"
-/* 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)
+#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_GENERATE_INTERNAL_LABEL
#define ASM_GENERATE_INTERNAL_LABEL(LABEL,PREFIX,NUM) \
- sprintf (LABEL, "*.L%s%d", PREFIX, NUM)
-
-/* Stabs doesn't use this, and it confuses a simulator. */
-/* ??? Need to see what DWARF needs, if anything. */
-#undef ASM_IDENTIFY_GCC
-#define ASM_IDENTIFY_GCC(FILE)
-
-/* Define the names of various pseudo-ops used by the Sparc/svr4 assembler.
- ??? If ints are 64 bits then UNALIGNED_INT_ASM_OP (defined elsewhere) is
- misnamed. These should all refer to explicit sizes (half/word/xword?),
- anything other than short/int/long/etc. */
-
-#define UNALIGNED_DOUBLE_INT_ASM_OP ".uaxword"
+ sprintf (LABEL, "*.L%s%ld", PREFIX, (long)(NUM))
/* DWARF bits. */
/* Follow Irix 6 and not the Dwarf2 draft in using 64-bit offsets.
- Obviously the Dwarf2 folks havn't tried to actually build systems
+ Obviously the Dwarf2 folks haven't tried to actually build systems
with their spec. On a 64-bit system, only 64-bit relocs become
RELATIVE relocations. */
/* #define DWARF_OFFSET_SIZE PTR_SIZE */
+
+#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
-/* Override MACHINE_STATE_{SAVE,RESTORE} because we have special
- traps available which can get and set the condition codes
- reliably. */
-#undef MACHINE_STATE_SAVE
-#define MACHINE_STATE_SAVE(ID) \
- unsigned long int ms_flags, ms_saveret; \
- asm volatile("ta 0x20\n\t" \
- "mov %%g1, %0\n\t" \
- "mov %%g2, %1\n\t" \
- : "=r" (ms_flags), "=r" (ms_saveret));
-
-#undef MACHINE_STATE_RESTORE
-#define MACHINE_STATE_RESTORE(ID) \
- asm volatile("mov %0, %%g1\n\t" \
- "mov %1, %%g2\n\t" \
- "ta 0x21\n\t" \
- : /* no outputs */ \
- : "r" (ms_flags), "r" (ms_saveret));
+/* 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
+
+#define TARGET_ASM_FILE_END file_end_indicate_exec_stack
+
+#undef LINK_GCC_C_SEQUENCE_SPEC
+#define LINK_GCC_C_SEQUENCE_SPEC \
+ "%{static:--start-group} %G %L %{static:--end-group}%{!static:%G}"
+
+/* 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)
+#endif
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