+2007-01-18 Richard Sandiford <richard@codesourcery.com>
+ Nathan Sidwell <nathan@codesourcery.com>
+
+ * config/m68k/m68k.h (PCC_STATIC_STRUCT_RETURN): Delete.
+ (ASM_OUTPUT_REG_PUSH, ASM_OUTPUT_REG_POP): Add MOTOROLA cases.
+ * config/m68k/coff.h (REGISTER_PREFIX_MD): Delete.
+ * config/m68k/m68020-elf.h (LIB_SPEC): Delete.
+ * config/m68k/m68k-none.h (CC1_SPEC, CPP_SUBTARGET_SPEC): Delete.
+ * config/m68k/m68kelf.h (IMMEDIATE_PREFIX, REGISTER_PREFIX_MD)
+ (ASM_OUTPUT_REG_PUSH, ASM_OUTPUT_REG_POP): Delete.
+ (NO_DOLLAR_IN_LABEL, PCC_STATIC_STRUCT_RETURN): Don't undefine.
+ (BSS_ASM_OP, ASM_OUTPUT_SKIP, ASM_OUTPUT_ASCII): Delete.
+ * config/m68k/m68kemb.h (PCC_STATIC_STRUCT_RETURN): Don't undefine.
+ * config/m68k/linux.h (SIZE_TYPE, PTRDIFF_TYPE, WCHAR_TYPE)
+ (WCHAR_TYPE_SIZE, TARGET_OBJFMT_CPP_BUILTINS): Delete.
+ (TARGET_OS_CPP_BUILTINS): Don't define mc68000 and mc68020 here.
+ (DBX_REGISTER_NUMBER): Delete.
+ * config/m68k/netbsd-elf.h (IMMEDIATE_PREFIX): Delete.
+ (PCC_STATIC_STRUCT_RETURN): Don't undefine.
+ * config/m68k/openbsd.h (PCC_STATIC_STRUCT_RETURN): Define.
+
2007-01-18 Richard Sandiford <richard@codesourcery.com>
* config.gcc (m68k-*-uclinux*): Add flat.h to $tm_file.
#undef REGISTER_PREFIX
#define REGISTER_PREFIX "%"
-/* In the machine description we can't use %R, because it will not be seen
- by ASM_FPRINTF. (Isn't that a design bug?). */
-
-#undef REGISTER_PREFIX_MD
-#define REGISTER_PREFIX_MD "%%"
-
/* config/m68k.md has an explicit reference to the program counter,
prefix this by the register prefix. */
#define ASM_COMMENT_START "|"
-#undef SIZE_TYPE
-#define SIZE_TYPE "unsigned int"
-
-#undef PTRDIFF_TYPE
-#define PTRDIFF_TYPE "int"
-
-#undef WCHAR_TYPE
-#define WCHAR_TYPE "long int"
-
-#undef WCHAR_TYPE_SIZE
-#define WCHAR_TYPE_SIZE BITS_PER_WORD
-
/* Target OS builtins. */
-#define TARGET_OS_CPP_BUILTINS() \
- do \
- { \
- LINUX_TARGET_OS_CPP_BUILTINS(); \
- builtin_define_std ("mc68000"); \
- builtin_define_std ("mc68020"); \
- } \
- while (0)
-
-#define TARGET_OBJFMT_CPP_BUILTINS() \
- do \
- { \
- builtin_define ("__ELF__"); \
- } \
- while (0)
+#define TARGET_OS_CPP_BUILTINS() LINUX_TARGET_OS_CPP_BUILTINS()
#undef CPP_SPEC
#define CPP_SPEC "%{posix:-D_POSIX_SOURCE} %{pthread:-D_REENTRANT}"
fprintf (FILE, "\tjbsr _mcount\n"); \
}
-/* How to renumber registers for dbx and gdb.
- On the Sun-3, the floating point registers have numbers
- 18 to 25, not 16 to 23 as they do in the compiler. */
-
-#define DBX_REGISTER_NUMBER(REGNO) ((REGNO) < 16 ? (REGNO) : (REGNO) + 2)
-
/* Do not break .stabs pseudos into continuations. */
#define DBX_CONTIN_LENGTH 0
#undef STARTFILE_SPEC
#define STARTFILE_SPEC "crtbegin.o%s"
-#define LIB_SPEC "-lc"
-
/* end of m68020-elf.h */
#undef ASM_SPEC
#define ASM_SPEC "%(asm_cpu_spec) %{fPIC:--pcrel} %{fpic:--pcrel} \
%{msep-data:--pcrel} %{mid-shared-library:--pcrel}"
-
-/* cc1/cc1plus always receives all the -m flags. If the specs strings above
- are consistent with the flags in m68k.opt, there should be no need for
- any further cc1/cc1plus specs. */
-
-#undef CC1_SPEC
-#define CC1_SPEC ""
-
-#define CPP_SUBTARGET_SPEC ""
XXX This macro is m68k specific and used only for m68kemb.h. */
#define NEEDS_UNTYPED_CALL 0
-#define PCC_STATIC_STRUCT_RETURN
-
/* On the m68k, all arguments are usually pushed on the stack. */
#define FUNCTION_ARG_REGNO_P(N) 0
\f
#define ASM_GENERATE_INTERNAL_LABEL(LABEL,PREFIX,NUM) \
sprintf (LABEL, "*%s%s%ld", LOCAL_LABEL_PREFIX, PREFIX, (long)(NUM))
-#define ASM_OUTPUT_REG_PUSH(FILE,REGNO) \
- asm_fprintf (FILE, "\tmovel %s,%Rsp@-\n", reg_names[REGNO])
-#define ASM_OUTPUT_REG_POP(FILE,REGNO) \
- asm_fprintf (FILE, "\tmovel %Rsp@+,%s\n", reg_names[REGNO])
+#define ASM_OUTPUT_REG_PUSH(FILE,REGNO) \
+ asm_fprintf (FILE, (MOTOROLA \
+ ? "\tmove.l %s,-(%Rsp)\n" \
+ : "\tmovel %s,%Rsp@-\n"), \
+ reg_names[REGNO])
+
+#define ASM_OUTPUT_REG_POP(FILE,REGNO) \
+ asm_fprintf (FILE, (MOTOROLA \
+ ? "\tmove.l (%Rsp)+,%s\n" \
+ : "\tmovel %Rsp@+,%s\n"), \
+ reg_names[REGNO])
/* The m68k does not use absolute case-vectors, but we must define this macro
anyway. */
#define SWBEG_ASM_OP "\t.swbeg\t"
#endif
-/* Here are four prefixes that are used by asm_fprintf to
+/* Here are three prefixes that are used by asm_fprintf to
facilitate customization for alternate assembler syntaxes.
Machines with no likelihood of an alternate syntax need not
define these and need not use asm_fprintf. */
#undef USER_LABEL_PREFIX
#define USER_LABEL_PREFIX ""
-/* The prefix for immediate operands. */
-
-#undef IMMEDIATE_PREFIX
-#define IMMEDIATE_PREFIX "#"
-
-/* In the machine description we can't use %R, because it will not be seen
- by ASM_FPRINTF. (Isn't that a design bug?). */
-
-#undef REGISTER_PREFIX_MD
-#define REGISTER_PREFIX_MD "%%"
-
/* config/m68k.md has an explicit reference to the program counter,
prefix this by the register prefix. */
fprintf ((FILE), "%s%u\n", ALIGN_ASM_OP, 1 << (LOG)); \
} while (0)
-/* Use proper assembler syntax for these macros. */
-#undef ASM_OUTPUT_REG_PUSH
-#define ASM_OUTPUT_REG_PUSH(FILE,REGNO) \
- asm_fprintf (FILE, "\t%Omove.l %s,-(%Rsp)\n", reg_names[REGNO])
-
-#undef ASM_OUTPUT_REG_POP
-#define ASM_OUTPUT_REG_POP(FILE,REGNO) \
- asm_fprintf (FILE, "\t%Omove.l (%Rsp)+,%s\n", reg_names[REGNO])
-
-/* Override the definition of NO_DOLLAR_IN_LABEL in svr4.h, for special
- g++ assembler names. When this is defined, g++ uses embedded '.'
- characters and some m68k assemblers have problems with this. The
- chances are much greater that any particular assembler will permit
- embedded '$' characters. */
-
-#undef NO_DOLLAR_IN_LABEL
-
-/* Define PCC_STATIC_STRUCT_RETURN if the convention on the target machine
- is to use the nonreentrant technique for returning structure and union
- values, as commonly implemented by the AT&T Portable C Compiler (PCC).
- When defined, the gcc option -fpcc-struct-return can be used to cause
- this form to be generated. When undefined, the option does nothing.
- For m68k SVR4, the convention is to use a reentrant technique compatible
- with the gcc default, so override the definition of this macro in m68k.h */
-
-#undef PCC_STATIC_STRUCT_RETURN
-
-/* Local common symbols are declared to the assembler with ".lcomm" rather
- than ".bss", so override the definition in svr4.h */
-
-#undef BSS_ASM_OP
-#define BSS_ASM_OP "\t.lcomm\t"
-
/* Register in which address to store a structure value is passed to a
function. The default in m68k.h is a1. For m68k/SVR4 it is a0. */
#undef DBX_REGISTER_NUMBER
#define DBX_REGISTER_NUMBER(REGNO) (REGNO)
-/* The ASM_OUTPUT_SKIP macro is first defined in m68k.h, using ".skip".
- It is then overridden by m68k/sgs.h to use ".space", and again by svr4.h
- to use ".zero". The m68k/SVR4 assembler uses ".space", so repeat the
- definition from m68k/sgs.h here. Note that ASM_NO_SKIP_IN_TEXT is
- defined in m68k/sgs.h, so we don't have to repeat it here. */
-
-#undef ASM_OUTPUT_SKIP
-#define ASM_OUTPUT_SKIP(FILE,SIZE) \
- fprintf (FILE, "%s%u\n", SPACE_ASM_OP, (int)(SIZE))
-
#if 0
/* SVR4 m68k assembler is bitching on the `comm i,1,1' which askes for
1 byte alignment. Don't generate alignment for COMMON seems to be
#undef ASM_OUTPUT_ALIGNED_LOCAL
#endif
-/* The `string' directive on m68k svr4 does not handle string with
- escape char (i.e., `\') right. Use normal way to output ASCII bytes
- seems to be safer. */
-#undef ASM_OUTPUT_ASCII
-#define ASM_OUTPUT_ASCII(FILE,PTR,LEN) \
-do { \
- register int sp = 0, ch; \
- fputs (integer_asm_op (1, TRUE), (FILE)); \
- do { \
- ch = (PTR)[sp]; \
- if (ch > ' ' && ! (ch & 0x80) && ch != '\\') \
- { \
- fprintf ((FILE), "'%c", ch); \
- } \
- else \
- { \
- fprintf ((FILE), "0x%x", ch); \
- } \
- if (++sp < (LEN)) \
- { \
- if ((sp % 10) == 0) \
- { \
- fprintf ((FILE), "\n%s", integer_asm_op (1, TRUE)); \
- } \
- else \
- { \
- putc (',', (FILE)); \
- } \
- } \
- } while (sp < (LEN)); \
- putc ('\n', (FILE)); \
-} while (0)
-
#undef ASM_OUTPUT_COMMON
#undef ASM_OUTPUT_LOCAL
#define ASM_OUTPUT_COMMON(FILE, NAME, SIZE, ROUNDED) \
so we define PCC_BITFIELD_TYPE_MATTERS. */
#define PCC_BITFIELD_TYPE_MATTERS 1
-/* Undef PCC_STATIC_STRUCT_RETURN so that we get a re-entrant calling
- convention. */
-#undef PCC_STATIC_STRUCT_RETURN
-
/* Don't default to pcc-struct-return, so that we can return small structures
and unions in registers, which is slightly more efficient. */
#define DEFAULT_PCC_STRUCT_RETURN 0
#define USER_LABEL_PREFIX ""
-/* The prefix for immediate operands. */
-
-#undef IMMEDIATE_PREFIX
-#define IMMEDIATE_PREFIX "#"
-
-
#undef ASM_COMMENT_START
#define ASM_COMMENT_START "|"
#define BIGGEST_ALIGNMENT 64
-/* For m68k SVR4, structures are returned using the reentrant
- technique. */
-
-#undef PCC_STATIC_STRUCT_RETURN
-
-
/* The svr4 ABI for the m68k says that records and unions are returned
in memory. */
/* Stack & calling: aggregate returns. */
+/* ??? This is traditional, but quite possibly wrong. It appears to
+ disagree with gdb. */
+#define PCC_STATIC_STRUCT_RETURN 1
+
/* Don't default to pcc-struct-return, because gcc is the only compiler, and
we want to retain compatibility with older gcc versions. */
#define DEFAULT_PCC_STRUCT_RETURN 0
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