/* Definitions for SPARC running Linux-based GNU systems with ELF.
- Copyright (C) 1996, 1997, 1998, 1999, 2000, 2002 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 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. */
-
-#define LINUX_DEFAULT_ELF
-
-#define HANDLE_PRAGMA_PACK_PUSH_POP
-
-/* Don't assume anything about the header files. */
-#define NO_IMPLICIT_EXTERN_C
-
-/* GNU/Linux uses ctype from glibc.a. I am not sure how complete it is.
- For now, we play safe. It may change later. */
-
-#if 0
-#undef MULTIBYTE_CHARS
-#define MULTIBYTE_CHARS 1
-#endif
-
-#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
-#ifdef USE_GNULIBC_1
-#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}"
-#else
-#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}}"
-#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'. */
+along with GCC; see the file COPYING3. If not see
+<http://www.gnu.org/licenses/>. */
+
+#define TARGET_OS_CPP_BUILTINS() \
+ do \
+ { \
+ GNU_USER_TARGET_OS_CPP_BUILTINS(); \
+ if (TARGET_LONG_DOUBLE_128) \
+ builtin_define ("__LONG_DOUBLE_128__"); \
+ } \
+ while (0)
#undef ENDFILE_SPEC
#define ENDFILE_SPEC \
- "%{ffast-math|funsafe-math-optimizations:crtfastmath.o%s} \
- %{!shared:crtend.o%s} %{shared:crtendS.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} \
-"
+ 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 MCPU_MTUNE_NATIVE_SPECS ""
+#endif
-/* The GNU C++ standard library requires that these macros be defined. */
-#undef CPLUSPLUS_CPP_SPEC
-#define CPLUSPLUS_CPP_SPEC "-D_GNU_SOURCE %(cpp)"
+#define DRIVER_SELF_SPECS MCPU_MTUNE_NATIVE_SPECS
-#undef TARGET_VERSION
-#define TARGET_VERSION fprintf (stderr, " (sparc GNU/Linux with ELF)");
+#undef ASAN_CC1_SPEC
+#define ASAN_CC1_SPEC "%{%:sanitize(address):-funwind-tables}"
-#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 CC1_SPEC
+#define CC1_SPEC GNU_USER_TARGET_CC1_SPEC ASAN_CC1_SPEC
#undef SIZE_TYPE
#define SIZE_TYPE "unsigned int"
#undef WCHAR_TYPE_SIZE
#define WCHAR_TYPE_SIZE 32
-#undef CPP_PREDEFINES
-#define CPP_PREDEFINES "-D__ELF__ -Dunix -D__sparc__ -D__gnu_linux__ -Dlinux -Asystem=unix -Asystem=posix"
-
#undef CPP_SUBTARGET_SPEC
-#ifdef USE_GNULIBC_1
-#define CPP_SUBTARGET_SPEC \
-"%{fPIC:-D__PIC__ -D__pic__} %{fpic:-D__PIC__ -D__pic__} %{posix:-D_POSIX_SOURCE} \
-%{mlong-double-128:-D__LONG_DOUBLE_128__}"
-#else
#define CPP_SUBTARGET_SPEC \
-"%{fPIC:-D__PIC__ -D__pic__} %{fpic:-D__PIC__ -D__pic__} %{posix:-D_POSIX_SOURCE} \
-%{pthread:-D_REENTRANT} %{mlong-double-128:-D__LONG_DOUBLE_128__}"
-#endif
-
-#undef LIB_SPEC
-/* We no longer link with libc_p.a or libg.a by default. If you
- want to profile or debug the GNU/Linux C library, please add
- -lc_p or -ggdb to LDFLAGS at the link time, respectively. */
-#if 1
-#ifdef USE_GNULIBC_1
-#define LIB_SPEC \
- "%{!shared: %{p:-lgmon} %{pg:-lgmon} %{profile:-lgmon -lc_p} \
- %{!profile:%{!ggdb:-lc} %{ggdb:-lg}}}"
-#else
-#define LIB_SPEC \
- "%{shared: -lc} \
- %{!shared: %{mieee-fp:-lieee} %{pthread:-lpthread} \
- %{profile:-lc_p} %{!profile: -lc}}"
-#endif
-#else
-#define LIB_SPEC \
- "%{!shared: \
- %{mieee-fp:-lieee} %{p:-lgmon -lc_p} %{pg:-lgmon -lc_p} \
- %{!p:%{!pg:%{!g*:-lc} %{g*:-lg}}}}"
-#endif
+"%{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
-#ifdef USE_GNULIBC_1
-#ifndef LINUX_DEFAULT_ELF
-#define LINK_SPEC "-m elf32_sparc -Y P,/usr/lib %{shared:-shared} \
- %{!shared: \
- %{!ibcs: \
- %{!static: \
- %{rdynamic:-export-dynamic} \
- %{!dynamic-linker:-dynamic-linker /lib/elf/ld-linux.so.1} \
- %{!rpath:-rpath /lib/elf/}} %{static:-static}}}"
-#else
-#define LINK_SPEC "-m elf32_sparc -Y P,/usr/lib %{shared:-shared} \
- %{!shared: \
- %{!ibcs: \
- %{!static: \
- %{rdynamic:-export-dynamic} \
- %{!dynamic-linker:-dynamic-linker /lib/ld-linux.so.1}} \
- %{static:-static}}}"
-#endif
-#else
-#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}}}"
-#endif
+ %{!static: \
+ %{rdynamic:-export-dynamic} \
+ -dynamic-linker " GNU_USER_DYNAMIC_LINKER "} \
+ %{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. */
+/* 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} %(asm_cpu) %(asm_relax)"
-
-/* Same as sparc.h */
-#undef DBX_REGISTER_NUMBER
-#define DBX_REGISTER_NUMBER(REGNO) (REGNO)
+#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 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))
-
\f
/* Define for support of TFmode long double.
- Sparc ABI says that long double is 4 words. */
+ SPARC ABI says that long double is 4 words. */
#define LONG_DOUBLE_TYPE_SIZE (TARGET_LONG_DOUBLE_128 ? 128 : 64)
-/* Constant which presents upper bound of the above value. */
-#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. */
-#ifdef __LONG_DOUBLE_128__
-#define LIBGCC2_LONG_DOUBLE_TYPE_SIZE 128
-#else
-#define LIBGCC2_LONG_DOUBLE_TYPE_SIZE 64
-#endif
-
-#if !defined(USE_GNULIBC_1) && 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. */
+/* Static stack checking is supported by means of probes. */
+#define STACK_CHECK_STATIC_BUILTIN 1
+
+#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]. */
+#define TARGET_THREAD_SSP_OFFSET 0x14
+#endif
+
+/* Define if long doubles should be mangled as 'g'. */
+#define TARGET_ALTERNATE_LONG_DOUBLE_MANGLING
-#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)
+/* We use glibc _mcount for profiling. */
+#undef NO_PROFILE_COUNTERS
+#define NO_PROFILE_COUNTERS 1