/* Definitions for MIPS running Linux-based GNU systems with ELF format.
- Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003
+ Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006
Free Software Foundation, Inc.
This file is part of GCC.
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. */
+the Free Software Foundation, 51 Franklin Street, Fifth Floor,
+Boston, MA 02110-1301, USA. */
#undef WCHAR_TYPE
#define WCHAR_TYPE "int"
/* If we don't set MASK_ABICALLS, we can't default to PIC. */
#undef TARGET_DEFAULT
-#define TARGET_DEFAULT (MASK_ABICALLS|MASK_GAS)
+#define TARGET_DEFAULT MASK_ABICALLS
#define TARGET_OS_CPP_BUILTINS() \
- do { \
- LINUX_TARGET_OS_CPP_BUILTINS(); \
- builtin_define ("__PIC__"); \
- builtin_define ("__pic__"); \
- /* The GNU C++ standard library requires this. */ \
- if (c_dialect_cxx ()) \
- builtin_define ("_GNU_SOURCE"); \
- \
- if (mips_abi == ABI_N32) \
+ do { \
+ LINUX_TARGET_OS_CPP_BUILTINS(); \
+ /* The GNU C++ standard library requires this. */ \
+ if (c_dialect_cxx ()) \
+ builtin_define ("_GNU_SOURCE"); \
+ \
+ if (mips_abi == ABI_N32) \
{ \
builtin_define ("_ABIN32=2"); \
builtin_define ("_MIPS_SIM=_ABIN32"); \
builtin_define ("_MIPS_SZLONG=32"); \
builtin_define ("_MIPS_SZPTR=32"); \
} \
- else if (mips_abi == ABI_64) \
+ else if (mips_abi == ABI_64) \
{ \
builtin_define ("_ABI64=3"); \
builtin_define ("_MIPS_SIM=_ABI64"); \
builtin_define ("_MIPS_SZLONG=64"); \
builtin_define ("_MIPS_SZPTR=64"); \
} \
- else \
+ else \
{ \
- builtin_define ("_ABIO32=1"); \
- builtin_define ("_MIPS_SIM=_ABIO32"); \
+ builtin_define ("_ABIO32=1"); \
+ builtin_define ("_MIPS_SIM=_ABIO32"); \
builtin_define ("_MIPS_SZLONG=32"); \
builtin_define ("_MIPS_SZPTR=32"); \
} \
- if (TARGET_FLOAT64) \
- builtin_define ("_MIPS_FPSET=32"); \
- else \
- builtin_define ("_MIPS_FPSET=16"); \
- \
- if (TARGET_INT64) \
- builtin_define ("_MIPS_SZINT=64"); \
- else \
- builtin_define ("_MIPS_SZINT=32"); \
-} while (0)
+ if (TARGET_FLOAT64) \
+ builtin_define ("_MIPS_FPSET=32"); \
+ else \
+ builtin_define ("_MIPS_FPSET=16"); \
+ \
+ builtin_define ("_MIPS_SZINT=32"); \
+ } while (0)
+
+#undef SUBTARGET_CPP_SPEC
+#define SUBTARGET_CPP_SPEC "%{posix:-D_POSIX_SOURCE} %{pthread:-D_REENTRANT}"
-#undef SUBTARGET_CPP_SPEC
-#define SUBTARGET_CPP_SPEC "\
-%{fno-PIC:-U__PIC__ -U__pic__} %{fno-pic:-U__PIC__ -U__pic__} \
-%{fPIC|fPIE|fpic|fpie:-D__PIC__ -D__pic__} \
-%{pthread:-D_REENTRANT}"
+/* A standard GNU/Linux mapping. On most targets, it is included in
+ CC1_SPEC itself by config/linux.h, but mips.h overrides CC1_SPEC
+ and provides this hook instead. */
+#undef SUBTARGET_CC1_SPEC
+#define SUBTARGET_CC1_SPEC "%{profile:-p}"
/* From iris5.h */
/* -G is incompatible with -KPIC which is the default, so only allow objects
#undef MIPS_DEFAULT_GVALUE
#define MIPS_DEFAULT_GVALUE 0
+#define GLIBC_DYNAMIC_LINKER "/lib/ld.so.1"
+
/* Borrowed from sparc/linux.h */
#undef LINK_SPEC
#define LINK_SPEC \
%{!ibcs: \
%{!static: \
%{rdynamic:-export-dynamic} \
- %{!dynamic-linker:-dynamic-linker /lib/ld.so.1}} \
+ %{!dynamic-linker:-dynamic-linker " LINUX_DYNAMIC_LINKER "}} \
%{static:-static}}}"
#undef SUBTARGET_ASM_SPEC
-#define SUBTARGET_ASM_SPEC "\
-%{mabi=64: -64} \
-%{!fno-PIC:%{!fno-pic:-KPIC}} \
-%{fno-PIC:-non_shared} %{fno-pic:-non_shared}"
+#define SUBTARGET_ASM_SPEC "%{mabi=64: -64} %{!mno-abicalls:-KPIC}"
/* The MIPS assembler has different syntax for .set. We set it to
.dummy to trap any errors. */
#undef FUNCTION_NAME_ALREADY_DECLARED
#define FUNCTION_NAME_ALREADY_DECLARED 1
-#define ASM_PREFERRED_EH_DATA_FORMAT(CODE, GLOBAL) \
- (flag_pic \
- ? ((GLOBAL) ? DW_EH_PE_indirect : 0) | DW_EH_PE_pcrel | DW_EH_PE_sdata4\
- : DW_EH_PE_absptr)
-
/* The glibc _mcount stub will save $v0 for us. Don't mess with saving
it, since ASM_OUTPUT_REG_PUSH/ASM_OUTPUT_REG_POP do not work in the
presence of $gp-relative calls. */
#undef LIB_SPEC
#define LIB_SPEC "\
%{shared: -lc} \
-%{!static:-rpath-link %R/lib:%R/usr/lib} \
%{!shared: %{pthread:-lpthread} \
%{profile:-lc_p} %{!profile: -lc}}"
-#ifndef inhibit_libc
-/* Do code reading to identify a signal frame, and set the frame
- state data appropriately. See unwind-dw2.c for the structs. */
-#ifdef IN_LIBGCC2
-#include <signal.h>
+#define MD_UNWIND_SUPPORT "config/mips/linux-unwind.h"
-/* The third parameter to the signal handler points to something with
- * this structure defined in asm/ucontext.h, but the name clashes with
- * struct ucontext from sys/ucontext.h so this private copy is used. */
-typedef struct _sig_ucontext {
- unsigned long uc_flags;
- struct _sig_ucontext *uc_link;
- stack_t uc_stack;
- struct sigcontext uc_mcontext;
- sigset_t uc_sigmask;
-} _sig_ucontext_t;
-
-#endif /* IN_LIBGCC2 */
-
-#define MD_FALLBACK_FRAME_STATE_FOR(CONTEXT, FS, SUCCESS) \
- do { \
- u_int32_t *pc_ = (u_int32_t *) (CONTEXT)->ra; \
- struct sigcontext *sc_; \
- _Unwind_Ptr new_cfa_; \
- int i_; \
- \
- /* 24021061 li v0, 0x1061 (rt_sigreturn)*/ \
- /* 0000000c syscall */ \
- /* or */ \
- /* 24021017 li v0, 0x1017 (sigreturn) */ \
- /* 0000000c syscall */ \
- if (*(pc_ + 1) != 0x0000000c) \
- break; \
- if (*(pc_ + 0) == 0x24021017) \
- { \
- struct sigframe { \
- u_int32_t trampoline[2]; \
- struct sigcontext sigctx; \
- } *rt_ = (CONTEXT)->ra; \
- sc_ = &rt_->sigctx; \
- } \
- else if (*(pc_ + 0) == 0x24021061) \
- { \
- struct rt_sigframe { \
- u_int32_t trampoline[2]; \
- struct siginfo info; \
- _sig_ucontext_t uc; \
- } *rt_ = (CONTEXT)->ra; \
- sc_ = &rt_->uc.uc_mcontext; \
- } \
- else \
- break; \
- \
- new_cfa_ = (_Unwind_Ptr)sc_; \
- (FS)->cfa_how = CFA_REG_OFFSET; \
- (FS)->cfa_reg = STACK_POINTER_REGNUM; \
- (FS)->cfa_offset = new_cfa_ - (_Unwind_Ptr) (CONTEXT)->cfa; \
- \
- for (i_ = 0; i_ < 32; i_++) { \
- (FS)->regs.reg[i_].how = REG_SAVED_OFFSET; \
- (FS)->regs.reg[i_].loc.offset \
- = (_Unwind_Ptr)&(sc_->sc_regs[i_]) - new_cfa_; \
- } \
- (FS)->regs.reg[SIGNAL_UNWIND_RETURN_COLUMN].how = REG_SAVED_OFFSET; \
- (FS)->regs.reg[SIGNAL_UNWIND_RETURN_COLUMN].loc.offset \
- = (_Unwind_Ptr)&(sc_->sc_pc) - new_cfa_; \
- (FS)->retaddr_column = SIGNAL_UNWIND_RETURN_COLUMN; \
- \
- goto SUCCESS; \
- } while (0)
+#ifdef HAVE_AS_NO_SHARED
+/* Default to -mno-shared for non-PIC. */
+#define NO_SHARED_SPECS \
+ "%{mshared|mno-shared|fpic|fPIC|fpie|fPIE:;:-mno-shared}"
+#define DRIVER_SELF_SPECS NO_SHARED_SPECS
+#else
+#define NO_SHARED_SPECS
#endif
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