diff options
Diffstat (limited to 'gcc/defaults.h')
| -rw-r--r-- | gcc/defaults.h | 79 |
1 files changed, 69 insertions, 10 deletions
diff --git a/gcc/defaults.h b/gcc/defaults.h index 20ea99ab62c..7f6790b42cf 100644 --- a/gcc/defaults.h +++ b/gcc/defaults.h @@ -102,16 +102,6 @@ do { ASM_OUTPUT_LABEL(FILE,LABEL_ALTERNATE_NAME (INSN)); } while (0) while (0) #endif -#ifndef ASM_IDENTIFY_GCC - /* Default the definition, only if ASM_IDENTIFY_GCC is not set, - because if it is set, we might not want ASM_IDENTIFY_LANGUAGE - outputting labels, if we do want it to, then it must be defined - in the tm.h file. */ -#ifndef ASM_IDENTIFY_LANGUAGE -#define ASM_IDENTIFY_LANGUAGE(FILE) output_lang_identify (FILE); -#endif -#endif - /* This is how we tell the assembler to equate two values. */ #ifdef SET_ASM_OP #ifndef ASM_OUTPUT_DEF @@ -140,6 +130,20 @@ do { ASM_OUTPUT_LABEL(FILE,LABEL_ALTERNATE_NAME (INSN)); } while (0) ASM_OUTPUT_INTERNAL_LABEL (FILE, PREFIX, NUM) #endif +/* This is how we tell the assembler that a symbol is weak. */ +#ifndef ASM_OUTPUT_WEAK_ALIAS +#if defined (ASM_WEAKEN_LABEL) && defined (ASM_OUTPUT_DEF) +#define ASM_OUTPUT_WEAK_ALIAS(STREAM, NAME, VALUE) \ + do \ + { \ + ASM_WEAKEN_LABEL (STREAM, NAME); \ + if (VALUE) \ + ASM_OUTPUT_DEF (STREAM, NAME, VALUE); \ + } \ + while (0) +#endif +#endif + /* This determines whether or not we support weak symbols. */ #ifndef SUPPORTS_WEAK #ifdef ASM_WEAKEN_LABEL @@ -180,6 +184,13 @@ do { ASM_OUTPUT_LABEL(FILE,LABEL_ALTERNATE_NAME (INSN)); } while (0) #define SUPPORTS_INIT_PRIORITY 1 #endif /* SUPPORTS_INIT_PRIORITY */ +/* If duplicate library search directories can be removed from a + linker command without changing the linker's semantics, give this + symbol a nonzero. */ +#ifndef LINK_ELIMINATE_DUPLICATE_LDIRECTORIES +#define LINK_ELIMINATE_DUPLICATE_LDIRECTORIES 0 +#endif /* LINK_ELIMINATE_DUPLICATE_LDIRECTORIES */ + /* If we have a definition of INCOMING_RETURN_ADDR_RTX, assume that the rest of the DWARF 2 frame unwind support is also provided. */ #if !defined (DWARF2_UNWIND_INFO) && defined (INCOMING_RETURN_ADDR_RTX) @@ -304,5 +315,53 @@ do { \ #endif #endif +/* By default, the C++ compiler will use the lowest bit of the pointer + to function to indicate a pointer-to-member-function points to a + virtual member function. However, if FUNCTION_BOUNDARY indicates + function addresses aren't always even, the lowest bit of the delta + field will be used. */ +#ifndef TARGET_PTRMEMFUNC_VBIT_LOCATION +#define TARGET_PTRMEMFUNC_VBIT_LOCATION \ + (FUNCTION_BOUNDARY >= 2 * BITS_PER_UNIT \ + ? ptrmemfunc_vbit_in_pfn : ptrmemfunc_vbit_in_delta) +#endif + +/* By default, the C++ compiler will use function addresses in the + vtable entries. Setting this non-zero tells the compiler to use + function descriptors instead. The value of this macro says how + many words wide the descriptor is (normally 2). It is assumed + that the address of a function descriptor may be treated as a + pointer to a function. */ +#ifndef TARGET_VTABLE_USES_DESCRIPTORS +#define TARGET_VTABLE_USES_DESCRIPTORS 0 +#endif + +/* Select a format to encode pointers in exception handling data. We + prefer those that result in fewer dynamic relocations. Assume no + special support here and encode direct references. */ +#ifndef ASM_PREFERRED_EH_DATA_FORMAT +#define ASM_PREFERRED_EH_DATA_FORMAT(CODE,GLOBAL) DW_EH_PE_absptr +#endif + +/* True if it is possible to profile code that does not have a frame + pointer. */ + +#ifndef TARGET_ALLOWS_PROFILING_WITHOUT_FRAME_POINTER +#define TARGET_ALLOWS_PROFILING_WITHOUT_FRAME_POINTER true +#endif + +#ifndef ACCUMULATE_OUTGOING_ARGS +#define ACCUMULATE_OUTGOING_ARGS 0 +#endif + +/* Supply a default definition for PUSH_ARGS. */ +#ifndef PUSH_ARGS +#ifdef PUSH_ROUNDING +#define PUSH_ARGS !ACCUMULATE_OUTGOING_ARGS +#else +#define PUSH_ARGS 0 +#endif +#endif + #endif /* GCC_DEFAULTS_H */ |