98 lines
2.5 KiB
C
98 lines
2.5 KiB
C
#include <m68k/m68k.h>
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/* Get generic NetBSD definitions. */
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#include <netbsd.h>
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/* See m68k.h. 7 means 68020 with 68881. */
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#define TARGET_DEFAULT 7
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/* Define __HAVE_68881__ in preprocessor, unless -msoft-float is specified.
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This will control the use of inline 68881 insns in certain macros. */
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#undef CPP_SPEC
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#define CPP_SPEC "%{!msoft-float:-D__HAVE_68881__ -D__HAVE_FPU__} %{posix:-D_POSIX_SOURCE}"
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#undef ASM_SPEC
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#define ASM_SPEC " %| %{m68030} %{m68040} %{m68060} %{fpic:-k} %{fPIC:-k -K}"
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/* Names to predefine in the preprocessor for this target machine. */
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#define CPP_PREDEFINES "-Dunix -Dm68k -Dmc68000 -Dmc68020 -D__NetBSD__ -D__KPRINTF_ATTRIBUTE__ -Asystem(unix) -Asystem(NetBSD) -Acpu(m68k) -Amachine(m68k)"
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/* Make gcc agree with <machine/ansi.h> */
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#undef SIZE_TYPE
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#define SIZE_TYPE "unsigned int"
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#undef PTRDIFF_TYPE
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#define PTRDIFF_TYPE "int"
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#undef WCHAR_TYPE
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#define WCHAR_TYPE "int"
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#undef WCHAR_UNSIGNED
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#define WCHAR_UNSIGNED 0
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#undef WCHAR_TYPE_SIZE
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#define WCHAR_TYPE_SIZE 32
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/* Every structure or union's size must be a multiple of 2 bytes. */
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#define STRUCTURE_SIZE_BOUNDARY 16
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/* This is BSD, so it wants DBX format. */
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#define DBX_DEBUGGING_INFO
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/* Do not break .stabs pseudos into continuations. */
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#define DBX_CONTIN_LENGTH 0
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/* This is the char to use for continuation (in case we need to turn
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continuation back on). */
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#define DBX_CONTIN_CHAR '?'
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/* Don't default to pcc-struct-return, because gcc is the only compiler, and
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we want to retain compatibility with older gcc versions. */
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#define DEFAULT_PCC_STRUCT_RETURN 0
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/* Don't do function CSE; it tickles bugs in other parts of the toolchain
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when used on pic code. */
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#define NO_FUNCTION_CSE
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/* Finalize the trampoline by flushing the insn cache. */
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#undef FINALIZE_TRAMPOLINE
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#define FINALIZE_TRAMPOLINE(TRAMP) \
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emit_library_call (gen_rtx (SYMBOL_REF, Pmode, "__cachectl"), \
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0, VOIDmode, 2, TRAMP, Pmode, \
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GEN_INT(TRAMPOLINE_SIZE), SImode);
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#undef TRANSFER_FROM_TRAMPOLINE
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#define TRANSFER_FROM_TRAMPOLINE \
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asm ( \
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GLOBAL_ASM_OP " ___cachectl; \
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___cachectl: \
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movel sp@(4),a1; \
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movel sp@(8),d1; \
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movel #0x80000004,d0; \
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trap #12; \
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rts"); \
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\
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void \
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__transfer_from_trampoline () \
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{ \
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register char *a0 asm ("%a0"); \
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asm (GLOBAL_ASM_OP " ___trampoline"); \
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asm ("___trampoline:"); \
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asm volatile ("move%.l %0,%@" : : "m" (a0[22])); \
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asm volatile ("move%.l %1,%0" : "=a" (a0) : "m" (a0[18])); \
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asm ("rts":); \
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}
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