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/* Definitions for Sun SPARC64 running FreeBSD using the ELF format
Copyright (C) 2001, 2002, 2004, 2005, 2006, 2007 Free Software Foundation, Inc.
Contributed by David E. O'Brien <obrien@FreeBSD.org> and BSDi.
This file is part of GCC.
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 3, or (at your option)
any later version.
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 GCC; see the file COPYING3. If not see
<http://www.gnu.org/licenses/>. */
#undef SUBTARGET_EXTRA_SPECS
#define SUBTARGET_EXTRA_SPECS \
{ "fbsd_dynamic_linker", FBSD_DYNAMIC_LINKER }
/* FreeBSD needs the platform name (sparc64) defined.
Emacs needs to know if the arch is 64 or 32-bits. */
#undef CPP_CPU64_DEFAULT_SPEC
#define CPP_CPU64_DEFAULT_SPEC \
"-D__sparc64__ -D__sparc_v9__ -D__sparcv9 -D__arch64__"
#define LINK_SPEC "%(link_arch) \
%{!mno-relax:%{!r:-relax}} \
%{p:%nconsider using `-pg' instead of `-p' with gprof(1)} \
%{assert*} %{R*} %{rpath*} %{defsym*} \
%{shared:-Bshareable %{h*} %{soname*}} \
%{symbolic:-Bsymbolic} \
%{!shared: \
%{!static: \
%{rdynamic:-export-dynamic} \
%{!dynamic-linker:-dynamic-linker %(fbsd_dynamic_linker) }} \
%{static:-Bstatic}}"
/************************[ Target stuff ]***********************************/
/* Define the actual types of some ANSI-mandated types.
Needs to agree with <machine/ansi.h>. GCC defaults come from c-decl.c,
c-common.c, and config/<arch>/<arch>.h. */
/* Earlier headers may get this wrong for FreeBSD.
We use the GCC defaults instead. */
#undef WCHAR_TYPE
#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)
/* 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
/* Definitions for 64-bit SPARC running systems with ELF. */
#undef TARGET_VERSION
#define TARGET_VERSION fprintf (stderr, " (FreeBSD/sparc64 ELF)");
#define TARGET_ELF 1
/* XXX */
/* A 64 bit v9 compiler with stack-bias,
in a Medium/mid code model environment. */
#undef TARGET_DEFAULT
#define TARGET_DEFAULT \
(MASK_V9 + MASK_64BIT + MASK_PTR64 /* + MASK_FASTER_STRUCTS */ \
+ MASK_STACK_BIAS + MASK_APP_REGS + MASK_FPU \
+ MASK_LONG_DOUBLE_128 /* + MASK_HARD_QUAD */)
/* The default code model. */
#undef SPARC_DEFAULT_CMODEL
#define SPARC_DEFAULT_CMODEL CM_MEDLOW
#define ENABLE_EXECUTE_STACK \
static int need_enable_exec_stack; \
static void check_enabling(void) __attribute__ ((constructor)); \
static void check_enabling(void) \
{ \
extern int sysctlbyname(const char *, void *, size_t *, void *, size_t);\
int prot = 0; \
size_t len = sizeof(prot); \
\
sysctlbyname ("kern.stackprot", &prot, &len, NULL, 0); \
if (prot != 7) \
need_enable_exec_stack = 1; \
} \
extern void __enable_execute_stack (void *); \
void __enable_execute_stack (void *addr) \
{ \
if (!need_enable_exec_stack) \
return; \
else { \
/* 7 is PROT_READ | PROT_WRITE | PROT_EXEC */ \
if (mprotect (addr, TRAMPOLINE_SIZE, 7) < 0) \
perror ("mprotect of trampoline code"); \
} \
}
/************************[ Assembler stuff ]********************************/
#undef LOCAL_LABEL_PREFIX
#define LOCAL_LABEL_PREFIX "."
/* XXX2 */
/* 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%lu", PREFIX, (unsigned long)(NUM))
/************************[ Debugger stuff ]*********************************/
/* This is the char to use for continuation (in case we need to turn
continuation back on). */
#undef DBX_CONTIN_CHAR
#define DBX_CONTIN_CHAR '?'
/* 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
with their spec. On a 64-bit system, only 64-bit relocs become
RELATIVE relocations. */
/* #define DWARF_OFFSET_SIZE PTR_SIZE */
#undef ENDFILE_SPEC
#define ENDFILE_SPEC \
"%{ffast-math|funsafe-math-optimizations:crtfastmath.o%s} " \
FBSD_ENDFILE_SPEC
/* We use GNU ld so undefine this so that attribute((init_priority)) works. */
#undef CTORS_SECTION_ASM_OP
#undef DTORS_SECTION_ASM_OP
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