Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003
Free Software Foundation, Inc.
-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)
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
+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. */
used. */
#define BSS_SECTION_ASM_OP "\t.section\t.bss"
-/* Like `ASM_OUTPUT_BSS' except takes the required alignment as a
- separate, explicit argument. If you define this macro, it is used
- in place of `ASM_OUTPUT_BSS', and gives you more flexibility in
- handling the required alignment of the variable. The alignment is
- specified as the number of bits.
-
- Try to use function `asm_output_aligned_bss' defined in file
- `varasm.c' when defining this macro. */
-#define ASM_OUTPUT_ALIGNED_BSS(FILE, DECL, NAME, SIZE, ALIGN) \
-do { \
- if (SIZE > 0 && (long)(SIZE) <= mips_section_threshold) \
- named_section (0, ".sbss", 0); \
- else \
- bss_section (); \
- ASM_OUTPUT_ALIGN (FILE, floor_log2 (ALIGN / BITS_PER_UNIT)); \
- last_assemble_variable_decl = DECL; \
- ASM_DECLARE_OBJECT_NAME (FILE, NAME, DECL); \
- ASM_OUTPUT_SKIP (FILE, SIZE ? SIZE : 1); \
-} while (0)
-
-/* These macros generate the special .type and .size directives which
- are used to set the corresponding fields of the linker symbol table
- entries in an ELF object file under SVR4. These macros also output
- the starting labels for the relevant functions/objects. */
-
-/* Write the extra assembler code needed to declare an object properly. */
+#define ASM_OUTPUT_ALIGNED_BSS mips_output_aligned_bss
#undef ASM_DECLARE_OBJECT_NAME
-#define ASM_DECLARE_OBJECT_NAME(FILE, NAME, DECL) \
- do { \
- HOST_WIDE_INT size; \
- ASM_OUTPUT_TYPE_DIRECTIVE (FILE, NAME, "object"); \
- size_directive_output = 0; \
- if (!flag_inhibit_size_directive && DECL_SIZE (DECL)) \
- { \
- size_directive_output = 1; \
- size = int_size_in_bytes (TREE_TYPE (DECL)); \
- ASM_OUTPUT_SIZE_DIRECTIVE (FILE, NAME, size); \
- } \
- mips_declare_object (FILE, NAME, "", ":\n", 0); \
- } while (0)
+#define ASM_DECLARE_OBJECT_NAME mips_declare_object_name
#undef TARGET_VERSION
#if TARGET_ENDIAN_DEFAULT == 0
#define TARGET_OS_CPP_BUILTINS() \
do { \
- builtin_define ("__gnu_linux__"); \
+ LINUX_TARGET_OS_CPP_BUILTINS(); \
builtin_define ("__PIC__"); \
builtin_define ("__pic__"); \
- builtin_define_std ("unix"); \
- builtin_define_std ("linux"); \
- builtin_assert ("system=linux"); \
/* The GNU C++ standard library requires this. */ \
if (c_dialect_cxx ()) \
builtin_define ("_GNU_SOURCE"); \
} \
else \
{ \
- builtin_define ("_MIPS_SIM=_MIPS_SIM_ABI32"); \
+ builtin_define ("_ABIO32=1"); \
+ builtin_define ("_MIPS_SIM=_ABIO32"); \
builtin_define ("_MIPS_SZLONG=32"); \
builtin_define ("_MIPS_SZPTR=32"); \
} \
/* Tell function_prologue in mips.c that we have already output the .ent/.end
pseudo-ops. */
-#define FUNCTION_NAME_ALREADY_DECLARED
+#undef FUNCTION_NAME_ALREADY_DECLARED
+#define FUNCTION_NAME_ALREADY_DECLARED 1
#define ASM_PREFERRED_EH_DATA_FORMAT(CODE, GLOBAL) \
(flag_pic \
%{!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>
+
+/* 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)
+#endif
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