/* Definitions of various defaults for tm.h macros.
Copyright (C) 1992, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004,
- 2005, 2007, 2008, 2009, 2010
+ 2005, 2007, 2008, 2009, 2010, 2011
Free Software Foundation, Inc.
Contributed by Ron Guilmette (rfg@monkeys.com)
#ifndef GCC_DEFAULTS_H
#define GCC_DEFAULTS_H
-#ifndef GET_ENVIRONMENT
-#define GET_ENVIRONMENT(VALUE, NAME) do { (VALUE) = getenv (NAME); } while (0)
+/* How to start an assembler comment. */
+#ifndef ASM_COMMENT_START
+#define ASM_COMMENT_START ";#"
#endif
/* Store in OUTPUT a string (made with alloca) containing an
#define DWARF_FRAME_REGISTERS FIRST_PSEUDO_REGISTER
#endif
+/* Offsets recorded in opcodes are a multiple of this alignment factor. */
+#ifndef DWARF_CIE_DATA_ALIGNMENT
+#ifdef STACK_GROWS_DOWNWARD
+#define DWARF_CIE_DATA_ALIGNMENT (-((int) UNITS_PER_WORD))
+#else
+#define DWARF_CIE_DATA_ALIGNMENT ((int) UNITS_PER_WORD)
+#endif
+#endif
+
+/* The DWARF 2 CFA column which tracks the return address. Normally this
+ is the column for PC, or the first column after all of the hard
+ registers. */
+#ifndef DWARF_FRAME_RETURN_COLUMN
+#ifdef PC_REGNUM
+#define DWARF_FRAME_RETURN_COLUMN DWARF_FRAME_REGNUM (PC_REGNUM)
+#else
+#define DWARF_FRAME_RETURN_COLUMN DWARF_FRAME_REGISTERS
+#endif
+#endif
+
/* How to renumber registers for dbx and gdb. If not defined, assume
no renumbering is necessary. */
#define DBX_REGISTER_NUMBER(REGNO) (REGNO)
#endif
+/* The mapping from gcc register number to DWARF 2 CFA column number.
+ By default, we just provide columns for all registers. */
+#ifndef DWARF_FRAME_REGNUM
+#define DWARF_FRAME_REGNUM(REG) DBX_REGISTER_NUMBER (REG)
+#endif
+
+/* Map register numbers held in the call frame info that gcc has
+ collected using DWARF_FRAME_REGNUM to those that should be output in
+ .debug_frame and .eh_frame. */
+#ifndef DWARF2_FRAME_REG_OUT
+#define DWARF2_FRAME_REG_OUT(REGNO, FOR_EH) (REGNO)
+#endif
+
+/* The size of addresses as they appear in the Dwarf 2 data.
+ Some architectures use word addresses to refer to code locations,
+ but Dwarf 2 info always uses byte addresses. On such machines,
+ Dwarf 2 addresses need to be larger than the architecture's
+ pointers. */
+#ifndef DWARF2_ADDR_SIZE
+#define DWARF2_ADDR_SIZE (POINTER_SIZE / BITS_PER_UNIT)
+#endif
+
+/* The size in bytes of a DWARF field indicating an offset or length
+ relative to a debug info section, specified to be 4 bytes in the
+ DWARF-2 specification. The SGI/MIPS ABI defines it to be the same
+ as PTR_SIZE. */
+#ifndef DWARF_OFFSET_SIZE
+#define DWARF_OFFSET_SIZE 4
+#endif
+
+/* The size in bytes of a DWARF 4 type signature. */
+#ifndef DWARF_TYPE_SIGNATURE_SIZE
+#define DWARF_TYPE_SIGNATURE_SIZE 8
+#endif
+
/* Default sizes for base C types. If the sizes are different for
your target, you should override these values by defining the
appropriate symbols in your tm.h file. */
#define FLOAT_WORDS_BIG_ENDIAN WORDS_BIG_ENDIAN
#endif
+#ifndef REG_WORDS_BIG_ENDIAN
+#define REG_WORDS_BIG_ENDIAN WORDS_BIG_ENDIAN
+#endif
+
#ifdef TARGET_FLT_EVAL_METHOD
#define TARGET_FLT_EVAL_METHOD_NON_DEFAULT 1
#else
#define TARGET_DEC_EVAL_METHOD 2
#endif
-#ifndef HOT_TEXT_SECTION_NAME
-#define HOT_TEXT_SECTION_NAME ".text.hot"
-#endif
-
-#ifndef UNLIKELY_EXECUTED_TEXT_SECTION_NAME
-#define UNLIKELY_EXECUTED_TEXT_SECTION_NAME ".text.unlikely"
-#endif
-
#ifndef HAS_LONG_COND_BRANCH
#define HAS_LONG_COND_BRANCH 0
#endif
DEFAULT_FUNCTION_ARG_PADDING ((MODE), (TYPE))
#endif
-/* Supply a default definition for FUNCTION_ARG_BOUNDARY. Normally, we let
- FUNCTION_ARG_PADDING, which also pads the length, handle any needed
- alignment. */
-
-#ifndef FUNCTION_ARG_BOUNDARY
-#define FUNCTION_ARG_BOUNDARY(MODE, TYPE) PARM_BOUNDARY
-#endif
-
/* Supply a default definition of STACK_SAVEAREA_MODE for emit_stack_save.
Normally move_insn, so Pmode stack pointer. */
#ifdef STACK_CHECK_PROTECT
#define STACK_OLD_CHECK_PROTECT STACK_CHECK_PROTECT
#else
-#define STACK_OLD_CHECK_PROTECT \
- (targetm.except_unwind_info () == UI_SJLJ ? 75 * UNITS_PER_WORD : 8 * 1024)
+#define STACK_OLD_CHECK_PROTECT \
+ (targetm_common.except_unwind_info (&global_options) == UI_SJLJ \
+ ? 75 * UNITS_PER_WORD \
+ : 8 * 1024)
#endif
/* Minimum amount of stack required to recover from an anticipated stack
overflow detection. The default value conveys an estimate of the amount
of stack required to propagate an exception. */
#ifndef STACK_CHECK_PROTECT
-#define STACK_CHECK_PROTECT \
- (targetm.except_unwind_info () == UI_SJLJ ? 75 * UNITS_PER_WORD : 12 * 1024)
+#define STACK_CHECK_PROTECT \
+ (targetm_common.except_unwind_info (&global_options) == UI_SJLJ \
+ ? 75 * UNITS_PER_WORD \
+ : 12 * 1024)
#endif
/* Make the maximum frame size be the largest we can and still only need
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