+2004-03-12 Matt Austern <austern@apple.com>
+
+ * target.h (struct gcc_target): New target hook, unwind_label.
+ * target-def.h (TARGET_ASM_EMIT_UNWIND_LABEL): New hook.
+ * output.h (default_emit_unwind_label): New function.
+ * default.h (TARGET_EXPLICIT_INSTANTIATIONS_ONE_ONLY): New macro.
+ (TARGET_USES_WEAK_UNWIND_INFO): New target macro.
+ (TARGET_SUPPORTS_HIDDEN): New target macro.
+ * dwarf2out.c (struct dw_fde_struct): Add field for function decl
+ that corresponds to this FDE.
+ (FRAME_BEGIN_LABEL): Allow target to override default label.
+ (output_call_frame_info): If FDEs are linknonce, then use extra
+ indirection for FDE encoding, output a label for each FDE, and
+ output an empty label for each function without an FDE.
+ (dwarf2out_begin_prologue): Set up decl field when creating an FDE.
+ * varasm.c (globalize_decl): Call ASM_MAKE_LABEL_LINKONCE for
+ decls with DECL_ONE_ONLY set, if that macro is defined.
+ (make_decl_one_only): Don't use DECL_COMMON if we're compiling
+ for a SUPPORTS_ONE_ONLY target.
+ * config/darwin-protos.h (darwin_unique_section): Declare.
+ (darwin_asm_named_section): Likewise.
+ (darwin_section_type_flags): Likewise.
+ (darwin_non_lazy_pcrel): Likewise.
+ (darwin_emit_unwind_label): Likewise.
+ (darwin_make_decl_one_only): Likewise.
+ * config/darwin.c (machopic_finish): Get rid of tweak that
+ eliminate stubs for symbols that are defined.
+ (darwin_encode_section_info): Don't treat weak functions as defined.
+ (darwin_make_decl_one_only): Define.
+ (darwin_asm_named_section): Likewise.
+ (darwin_section_type_flags): Likewise.
+ (darwin_unique_section): Likewise.
+ (darwin_emit_unwind_label): Likewise.
+ (darwin_non_lazy_pcrel): Likewise.
+ (darwin_asm_output_dwarf_delta): Difference between two labels is
+ local only if both labels are local.
+ * config/darwin.h (MAKE_DECL_ONE_ONLY): Define.
+ (ASM_MAKE_LABEL_LINKONCE): Likewise.
+ (TARGET_SUPPORTS_HIDDEN): Likewise.
+ (TARGET_USES_WEAK_UNWIND_INFO): Likewise.
+ (TARGET_EXPLICIT_INSTANTIATIONS_ONE_ONLY): Likewise.
+ (FRAME_BEGIN_LABEL): Likewise.
+ (ASM_DECLARE_OBJECT_NAME): Make references to weak symbols indirect.
+ (ASM_DECLARE_FUNCTION_NAME): Likewise.
+ (darwin_eh_frame_section): Give __eh_frame section the coalesced flag.
+ (TARGET_ASM_UNIQUE_SECTION): Define.
+ (EH_FRAME_SECTION_NAME): Define.
+ (EH_FRAME_SECTION_ATTR): Likewise.
+ (ASM_MAYBE_OUTPUT_ENCODED_ADDR_RTX): Likewise.
+ (TARGET_ASM_NAMED_SECTION): Likewise.
+ (TARGET_SECTION_TYPE_FLAGS): Likewise.
+ * doc/tm.texi: Document TARGET_USES_WEAK_UNWIND_INFO,
+ TARGET_EXPLICIT_INSTANTIATIONS_ONE_ONLY, TARGET_SUPPORTS_HIDDEN,
+ TARGET_ASM_EMIT_UNWIND_LABEL.
+
2004-03-12 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
* builtins.c (expand_builtin_mathfn): Add pow10* to the
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