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/* Definitions for 64-bit SPARC running Linux-based GNU systems with ELF.
Copyright 1996, 1997, 1998, 2000, 2002 Free Software Foundation, Inc.
Contributed by David S. Miller (davem@caip.rutgers.edu)
This file is part of GNU CC.
GNU CC 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,
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. */
#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
/* 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__} \
-D__GCC_NEW_VARARGS__ -Acpu=sparc -Amachine=sparc"
#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}}"
/* 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
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}"
/* 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)");
/* The default code model. */
#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 WCHAR_TYPE_SIZE
#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 (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__)
#define LIBGCC2_LONG_DOUBLE_TYPE_SIZE 128
#else
#define LIBGCC2_LONG_DOUBLE_TYPE_SIZE 64
#endif
#undef CPP_PREDEFINES
#define CPP_PREDEFINES "-D__ELF__ -Dunix -D_LONGLONG -D__sparc__ -D__gnu_linux__ -Dlinux -Asystem=unix -Asystem=posix"
#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
combinations of options at link-time. We like to support here for
as many of the other GNU linker options as possible. But I don't
have the time to search for those flags. I am sure how to add
support for -soname shared_object_name. H.J.
I took out %{v:%{!V:-V}}. It is too much :-(. They can use
-Wl,-V.
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. */
#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 "\
%(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 /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. */
#undef ASM_SPEC
#define ASM_SPEC "\
%{V} \
%{v:%{!V:-V}} \
%{!Qn:-Qy} \
%{n} \
%{T} \
%{Ym,*} \
%{Wa,*:%*} \
-s %{fpic:-K PIC} %{fPIC:-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 { \
fputs ("\t.local\t", (FILE)); \
assemble_name ((FILE), (NAME)); \
putc ('\n', (FILE)); \
ASM_OUTPUT_ALIGNED_COMMON (FILE, NAME, SIZE, ALIGN); \
} while (0)
#undef COMMON_ASM_OP
#define COMMON_ASM_OP "\t.common\t"
#undef LOCAL_LABEL_PREFIX
#define LOCAL_LABEL_PREFIX "."
/* 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. */
#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.
This is suitable for output with `assemble_name'. */
#undef ASM_GENERATE_INTERNAL_LABEL
#define ASM_GENERATE_INTERNAL_LABEL(LABEL,PREFIX,NUM) \
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 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
/* 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
#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
|
