/* Definitions for Motorola 68k running Linux-based GNU systems with
ELF format.
- Copyright (C) 1995, 1996, 1997, 1998, 1999, 2000, 2002, 2003, 2004
+ Copyright (C) 1995, 1996, 1997, 1998, 1999, 2000, 2002, 2003, 2004, 2006
Free Software Foundation, Inc.
This file is part of GCC.
#undef TARGET_VERSION
#define TARGET_VERSION fprintf (stderr, " (68k GNU/Linux with ELF)");
-/* Default target comes from config.gcc. */
-
-#undef TARGET_DEFAULT
-#ifdef TARGET_CPU_DEFAULT
-#define TARGET_DEFAULT TARGET_CPU_DEFAULT
-#else
-#define TARGET_DEFAULT (MASK_BITFIELD|MASK_68881|MASK_68020)
-#endif
+/* Add %(asm_cpu_spec) to the svr4.h definition of ASM_SPEC. */
+#undef ASM_SPEC
+#define ASM_SPEC \
+ "%(asm_cpu_spec) %{v:-V} %{Qy:} %{!Qn:-Qy} %{n} %{T} %{Ym,*} %{Yd,*}"
/* for 68k machines this only needs to be TRUE for the 68000 */
#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
-#if TARGET_DEFAULT & MASK_68881
-#define CPP_SPEC \
- "%{fPIC|fpic|fPIE|fpie:-D__PIC__ -D__pic__} %{!msoft-float:-D__HAVE_68881__} %{posix:-D_POSIX_SOURCE} %{pthread:-D_REENTRANT}"
-#else
-#define CPP_SPEC \
- "%{fPIC|fpic|fPIE|fpie:-D__PIC__ -D__pic__} %{m68881:-D__HAVE_68881__} %{posix:-D_POSIX_SOURCE} %{pthread:-D_REENTRANT}"
-#endif
-
-/* We override the ASM_SPEC from svr4.h because we must pass -m68040 down
- to the assembler. */
-#undef ASM_SPEC
-#define ASM_SPEC \
- "%{v:-V} %{Qy:} %{!Qn:-Qy} %{n} %{T} %{Ym,*} %{Yd,*} %{Wa,*:%*} \
-%{m68040} %{m68060:-m68040}"
+#define CPP_SPEC "%{posix:-D_POSIX_SOURCE} %{pthread:-D_REENTRANT}"
/* Provide a LINK_SPEC appropriate for GNU/Linux. Here we provide support
for the special GCC options -static and -shared, which allow us to
/* If ELF is the default format, we should not use /lib/elf. */
+#define GLIBC_DYNAMIC_LINKER "/lib/ld.so.1"
+
#undef LINK_SPEC
#define LINK_SPEC "-m m68kelf %{shared} \
%{!shared: \
%{!static: \
%{rdynamic:-export-dynamic} \
- %{!dynamic-linker*:-dynamic-linker /lib/ld.so.1}} \
+ %{!dynamic-linker*:-dynamic-linker " LINUX_DYNAMIC_LINKER "}} \
%{static}}"
/* For compatibility with linux/a.out */
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 FUNCTION_VALUE
#define FUNCTION_VALUE(VALTYPE, FUNC) \
- (TREE_CODE (VALTYPE) == REAL_TYPE && TARGET_68881 \
- ? gen_rtx_REG (TYPE_MODE (VALTYPE), 16) \
- : (POINTER_TYPE_P (VALTYPE) \
- ? gen_rtx_REG (TYPE_MODE (VALTYPE), 8) \
- : gen_rtx_REG (TYPE_MODE (VALTYPE), 0)))
+ m68k_function_value (VALTYPE, FUNC)
/* For compatibility with the large body of existing code which does
not always properly declare external functions returning pointer
#undef LIBCALL_VALUE
#define LIBCALL_VALUE(MODE) \
- ((((MODE) == SFmode || (MODE) == DFmode || (MODE) == XFmode) \
- && TARGET_68881) \
- ? gen_rtx_REG ((MODE), 16) \
- : gen_rtx_REG ((MODE), 0))
+ m68k_libcall_value (MODE)
/* For m68k SVR4, structures are returned using the reentrant
technique. */
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