/* Definitions of target machine for GNU compiler, for Sun SPARC.
- Copyright (C) 1987, 88, 89, 92, 94, 95, 1996 Free Software Foundation, Inc.
+ Copyright (C) 1987, 88, 89, 92, 94, 95, 96, 1997 Free Software Foundation,
+ Inc.
Contributed by Michael Tiemann (tiemann@cygnus.com).
64 bit SPARC V9 support by Michael Tiemann, Jim Wilson, and Doug Evans,
at Cygnus Support.
#endif
/* Values of TARGET_CPU_DEFAULT, set via -D in the Makefile. */
-#define TARGET_CPU_sparc 0
-#define TARGET_CPU_sparclet 1
-#define TARGET_CPU_sparclite 2
-#define TARGET_CPU_sparc64 3
-
-#if TARGET_CPU_DEFAULT == TARGET_CPU_sparc
+#define TARGET_CPU_sparc 0
+#define TARGET_CPU_v7 0 /* alias for previous */
+#define TARGET_CPU_sparclet 1
+#define TARGET_CPU_sparclite 2
+#define TARGET_CPU_v8 3
+#define TARGET_CPU_supersparc 4
+#define TARGET_CPU_ultrasparc 5
+#define TARGET_CPU_sparc64 5 /* alias for ultrasparc */
+
+#if TARGET_CPU_DEFAULT == TARGET_CPU_sparc || TARGET_CPU_DEFAULT == TARGET_CPU_v8 || TARGET_CPU_DEFAULT == TARGET_CPU_supersparc
#define CPP_DEFAULT_SPEC ""
#define ASM_DEFAULT_SPEC ""
#else
#define OVERRIDE_OPTIONS \
do { \
- if (profile_flag || profile_block_flag) \
+ if (profile_flag || profile_block_flag || profile_arc_flag) \
{ \
if (flag_pic) \
{ \
#define MASK_HARD_QUAD 0x800
#define TARGET_HARD_QUAD (target_flags & MASK_HARD_QUAD)
-/* Bit 0x1000 currently unused. */
+/* Non-zero on little-endian machines. */
+/* ??? Little endian support currently only exists for sparclet-aout and
+ sparc64-elf configurations. May eventually want to expand the support
+ to all targets, but for now it's kept local to only those two. */
+#define MASK_LITTLE_ENDIAN 0x1000
+#define TARGET_LITTLE_ENDIAN (target_flags & MASK_LITTLE_ENDIAN)
/* Nonzero if ints are 64 bits.
This automatically implies longs are 64 bits too.
#define MASK_BROKEN_SAVERESTORE 0x200000
#define TARGET_BROKEN_SAVERESTORE (target_flags & MASK_BROKEN_SAVERESTORE)
+/* Non-zero means -m{,no-}fpu was passed on the command line. */
+#define MASK_FPU_SET 0x400000
+#define TARGET_FPU_SET (target_flags & MASK_FPU_SET)
+
/* Macro to define tables used to set the flags.
This is a list in braces of pairs in braces,
each pair being { "NAME", VALUE }
An empty string NAME is used to identify the default VALUE. */
#define TARGET_SWITCHES \
- { {"fpu", MASK_FPU}, \
+ { {"fpu", MASK_FPU | MASK_FPU_SET}, \
{"no-fpu", -MASK_FPU}, \
- {"hard-float", MASK_FPU}, \
+ {"no-fpu", MASK_FPU_SET}, \
+ {"hard-float", MASK_FPU | MASK_FPU_SET}, \
{"soft-float", -MASK_FPU}, \
+ {"soft-float", MASK_FPU_SET}, \
{"epilogue", MASK_EPILOGUE}, \
{"no-epilogue", -MASK_EPILOGUE}, \
{"unaligned-doubles", MASK_UNALIGNED_DOUBLES}, \
#define BITS_BIG_ENDIAN 1
/* Define this if most significant byte of a word is the lowest numbered. */
-/* This is true on the SPARC. */
#define BYTES_BIG_ENDIAN 1
/* Define this if most significant word of a multiword number is the lowest
numbered. */
-/* Doubles are stored in memory with the high order word first. This
- matters when cross-compiling. */
#define WORDS_BIG_ENDIAN 1
+/* Define this to set the endianness to use in libgcc2.c, which can
+ not depend on target_flags. */
+#if defined (__LITTLE_ENDIAN__)
+#define LIBGCC2_WORDS_BIG_ENDIAN 0
+#else
+#define LIBGCC2_WORDS_BIG_ENDIAN 1
+#endif
+
/* number of bits in an addressable storage unit */
#define BITS_PER_UNIT 8
#define FRAME_POINTER_REGNUM 30
#if 0
-/* Register that is used for the return address. */
+/* Register that is used for the return address for the flat model. */
#define RETURN_ADDR_REGNUM 15
#endif
#define ELIGIBLE_FOR_EPILOGUE_DELAY(trial, slots_filled) \
(TARGET_FLAT ? sparc_flat_eligible_for_epilogue_delay (trial, slots_filled) \
: eligible_for_epilogue_delay (trial, slots_filled))
+
+/* Define registers used by the epilogue and return instruction. */
+#define EPILOGUE_USES(REGNO) \
+ (!TARGET_FLAT && REGNO == 31)
\f
/* Output assembler code for a block containing the constant parts
of a trampoline, leaving space for the variable parts. */
? gen_rtx (REG, Pmode, 31) \
: gen_rtx (MEM, Pmode, \
memory_address (Pmode, plus_constant (frame, 15 * UNITS_PER_WORD))))
+
+#define DOESNT_NEED_UNWINDER (! TARGET_FLAT)
\f
/* Addressing modes, and classification of registers for them. */
#define DBX_REGISTER_NUMBER(REGNO) (REGNO)
-/* On Sun 4, this limit is 2048. We use 1500 to be safe,
- since the length can run past this up to a continuation point. */
-#define DBX_CONTIN_LENGTH 1500
+/* On Sun 4, this limit is 2048. We use 1000 to be safe, since the length
+ can run past this up to a continuation point. Once we used 1500, but
+ a single entry in C++ can run more than 500 bytes, due to the length of
+ mangled symbol names. dbxout.c should really be fixed to do
+ continuations when they are actually needed instead of trying to
+ guess... */
+#define DBX_CONTIN_LENGTH 1000
/* This is how to output a note to DBX telling it the line number
to which the following sequence of instructions corresponds.
#define ASM_GLOBALIZE_LABEL(FILE,NAME) \
do { fputs ("\t.global ", FILE); assemble_name (FILE, NAME); fputs ("\n", FILE);} while (0)
-/* This is how to output a reference to a user-level label named NAME.
- `assemble_name' uses this. */
+/* The prefix to add to user-visible assembler symbols. */
-#define ASM_OUTPUT_LABELREF(FILE,NAME) \
- fprintf (FILE, "_%s", NAME)
+#define USER_LABEL_PREFIX "_"
/* This is how to output a definition of an internal numbered label where
PREFIX is the class of label and NUM is the number within the class. */
} \
}
+/* The number of Pmode words for the setjmp buffer. */
+#define JMP_BUF_SIZE 12
+
/* Declare functions defined in sparc.c and used in templates. */
extern char *singlemove_string ();
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