/* Definitions for SPARC running Linux-based GNU systems with ELF.
- Copyright (C) 1996, 1997, 1998, 1999, 2000, 2002, 2003, 2004, 2005
- Free Software Foundation, Inc.
+ Copyright (C) 1996-2024 Free Software Foundation, Inc.
Contributed by Eddie C. Dost (ecd@skynet.be)
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 2, or (at your option)
+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,
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 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 ("__gnu_linux__"); \
- builtin_assert ("system=linux"); \
- builtin_assert ("system=unix"); \
- builtin_assert ("system=posix"); \
- if (flag_pic) \
- { \
- builtin_define ("__PIC__"); \
- builtin_define ("__pic__"); \
- } \
+ GNU_USER_TARGET_OS_CPP_BUILTINS(); \
+ if (TARGET_LONG_DOUBLE_128) \
+ builtin_define ("__LONG_DOUBLE_128__"); \
} \
while (0)
-/* Don't assume anything about the header files. */
-#define NO_IMPLICIT_EXTERN_C
-
-#undef MD_EXEC_PREFIX
-#undef MD_STARTFILE_PREFIX
-
-/* 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
-#if defined 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;:crtbegin.o%s}"
+#undef ENDFILE_SPEC
+#define ENDFILE_SPEC \
+ GNU_USER_TARGET_ENDFILE_SPEC \
+ "%{Ofast|ffast-math|funsafe-math-optimizations:%{!shared:crtfastmath.o%s}}"
+
+/* -mcpu=native handling only makes sense with compiler running on
+ a SPARC chip. */
+#if defined(__sparc__) && defined(__linux__)
+extern const char *host_detect_local_cpu (int argc, const char **argv);
+# define EXTRA_SPEC_FUNCTIONS \
+ { "local_cpu_detect", host_detect_local_cpu },
+
+# define MCPU_MTUNE_NATIVE_SPECS \
+ " %{mcpu=native:%<mcpu=native %:local_cpu_detect(cpu)}" \
+ " %{mtune=native:%<mtune=native %:local_cpu_detect(tune)}"
#else
-#define STARTFILE_SPEC \
- "%{!shared: %{pg|p:gcrt1.o%s;:crt1.o%s}}\
- crti.o%s %{static:crtbeginT.o%s;shared|pie:crtbeginS.o%s;:crtbegin.o%s}"
+# define MCPU_MTUNE_NATIVE_SPECS ""
#endif
-/* 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'. */
+#define DRIVER_SELF_SPECS MCPU_MTUNE_NATIVE_SPECS
-#undef ENDFILE_SPEC
-#define ENDFILE_SPEC \
- "%{ffast-math|funsafe-math-optimizations:crtfastmath.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
-#define CC1_SPEC "%{profile:-p} \
-%{sun4:} %{target:} \
-%{mcypress:-mcpu=cypress} \
-%{msparclite:-mcpu=sparclite} %{mf930:-mcpu=f930} %{mf934:-mcpu=f934} \
-%{mv8:-mcpu=v8} %{msupersparc:-mcpu=supersparc} \
-"
-
-/* 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, " (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 ASAN_CC1_SPEC
+#define ASAN_CC1_SPEC "%{%:sanitize(address):-funwind-tables}"
+
+#undef CC1_SPEC
+#define CC1_SPEC GNU_USER_TARGET_CC1_SPEC ASAN_CC1_SPEC
#undef SIZE_TYPE
#define SIZE_TYPE "unsigned int"
#undef CPP_SUBTARGET_SPEC
#define CPP_SUBTARGET_SPEC \
-"%{posix:-D_POSIX_SOURCE} \
-%{pthread:-D_REENTRANT} %{mlong-double-128:-D__LONG_DOUBLE_128__}"
-
-#undef LIB_SPEC
-#define LIB_SPEC \
- "%{pthread:-lpthread} \
- %{shared:-lc} \
- %{!shared:%{mieee-fp:-lieee} %{profile:-lc_p}%{!profile:-lc}}"
+"%{posix:-D_POSIX_SOURCE} %{pthread:-D_REENTRANT}"
/* 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.
+ combinations of options at link-time.
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. */
+#define GLIBC_DYNAMIC_LINKER "/lib/ld-linux.so.2"
#undef LINK_SPEC
-#define LINK_SPEC "-m elf32_sparc -Y P,/usr/lib %{shared:-shared} \
+#define LINK_SPEC "-m elf32_sparc %{shared:-shared} \
%{!mno-relax:%{!r:-relax}} \
%{!shared: \
- %{!ibcs: \
- %{!static: \
- %{rdynamic:-export-dynamic} \
- %{!dynamic-linker:-dynamic-linker /lib/ld-linux.so.2}} \
- %{static:-static}}}"
-
-/* 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|fPIC|fpie|fPIE:-K PIC} %(asm_cpu) %(asm_relax)"
+ %{!static: \
+ %{rdynamic:-export-dynamic} \
+ -dynamic-linker " GNU_USER_DYNAMIC_LINKER "} \
+ %{static:-static}}"
-/* Same as sparc.h */
-#undef DBX_REGISTER_NUMBER
-#define DBX_REGISTER_NUMBER(REGNO) (REGNO)
+/* It's safe to pass -s always, even if -g is not used. */
+#undef ASM_SPEC
+#define ASM_SPEC "\
+-s \
+%{" FPIE_OR_FPIC_SPEC ":-K PIC} \
+%{!.c:%{findirect-dispatch:-K PIC}} \
+%(asm_cpu) %(asm_relax)"
#undef ASM_OUTPUT_ALIGNED_LOCAL
#define ASM_OUTPUT_ALIGNED_LOCAL(FILE, NAME, SIZE, ALIGN) \
#undef LOCAL_LABEL_PREFIX
#define LOCAL_LABEL_PREFIX "."
-/* 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))
-
\f
/* Define for support of TFmode long double.
SPARC ABI says that long double is 4 words. */
#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. */
-#ifdef __LONG_DOUBLE_128__
-#define LIBGCC2_LONG_DOUBLE_TYPE_SIZE 128
-#else
-#define LIBGCC2_LONG_DOUBLE_TYPE_SIZE 64
-#endif
-
#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
#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
-/* Determine whether the the entire c99 runtime is present in the
- runtime library. */
-#define TARGET_C99_FUNCTIONS 1
+/* Static stack checking is supported by means of probes. */
+#define STACK_CHECK_STATIC_BUILTIN 1
-#define TARGET_HAS_F_SETLKW
-
-#undef LINK_GCC_C_SEQUENCE_SPEC
-#define LINK_GCC_C_SEQUENCE_SPEC \
- "%{static:--start-group} %G %L %{static:--end-group}%{!static:%G}"
+#undef NEED_INDICATE_EXEC_STACK
+#define NEED_INDICATE_EXEC_STACK 1
-/* Use --as-needed -lgcc_s for eh support. */
-#ifdef HAVE_LD_AS_NEEDED
-#define USE_LD_AS_NEEDED 1
+#ifdef TARGET_LIBC_PROVIDES_SSP
+/* sparc glibc provides __stack_chk_guard in [%g7 + 0x14]. */
+#define TARGET_THREAD_SSP_OFFSET 0x14
#endif
-#define MD_UNWIND_SUPPORT "config/sparc/linux-unwind.h"
+/* Define if long doubles should be mangled as 'g'. */
+#define TARGET_ALTERNATE_LONG_DOUBLE_MANGLING
-/* 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
+/* We use glibc _mcount for profiling. */
+#undef NO_PROFILE_COUNTERS
+#define NO_PROFILE_COUNTERS 1