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https://github.com/kanjitalk755/macemu.git
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Support JIT on Mach/ppc platforms. Mach/i386 (Darwin/x86) is to follow.
This commit is contained in:
gbeauche
parent
957bee00cf
commit
46f9e6d2ea
@ -1033,7 +1033,7 @@ fi
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AC_MSG_RESULT($HAVE_ICC)
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dnl Determine the generated object format
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AC_CACHE_CHECK([whether the compiler can generate ELF objects],
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AC_CACHE_CHECK([the format of compiler generated objects],
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ac_cv_object_format, [
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echo 'int i;' > conftest.$ac_ext
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ac_cv_object_format=no
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@ -1042,6 +1042,9 @@ AC_CACHE_CHECK([whether the compiler can generate ELF objects],
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*"ELF"*)
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ac_cv_object_format=elf
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;;
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*"Mach-O"*)
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ac_cv_object_format=mach
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;;
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*)
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ac_cv_object_format=unknown
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;;
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@ -1074,6 +1077,9 @@ if [[ "x$EMULATED_PPC" = "xyes" ]]; then
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i?86:elf)
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ac_cv_use_dyngen=yes
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;;
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powerpc:mach)
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ac_cv_use_dyngen=yes
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;;
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*:*)
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ac_cv_use_dyngen=no
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;;
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@ -1099,14 +1105,19 @@ if [[ "x$EMULATED_PPC" = "xyes" ]]; then
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case $host_cpu in
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i?86)
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DYNGEN_OP_FLAGS="-fomit-frame-pointer -mpreferred-stack-boundary=2"
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if [[ "x$HAVE_GCC30" = "xyes" ]]; then
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DYNGEN_OP_FLAGS="$DYNGEN_OP_FLAGS -falign-functions=0"
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else
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DYNGEN_OP_FLAGS="$DYNGEN_OP_FLAGS -malign-functions=0"
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;;
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powerpc)
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if [[ "x$ac_cv_object_format" = "xmach" ]]; then
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DYNGEN_OP_FLAGS="-mdynamic-no-pic"
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fi
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;;
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esac
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DYNGEN_OP_FLAGS="$DYNGEN_OP_FLAGS -finline-limit=10000 -g0"
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if [[ "x$HAVE_GCC30" = "xyes" ]]; then
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DYNGEN_OP_FLAGS="$DYNGEN_OP_FLAGS -falign-functions=0"
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else
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DYNGEN_OP_FLAGS="$DYNGEN_OP_FLAGS -malign-functions=0"
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fi
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DYNGEN_OP_FLAGS="$DYNGEN_OP_FLAGS -finline-limit=10000 -fno-exceptions -g0"
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if [[ "x$HAVE_GCC30" = "xyes" ]]; then
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DYNGEN_OP_FLAGS="$DYNGEN_OP_FLAGS -fno-reorder-blocks -fno-optimize-sibling-calls"
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fi
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@ -237,6 +237,9 @@ DEFINE_OP(8,T0,1,T1);
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#ifdef __powerpc__
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#define FORCE_RET() asm volatile ("blr")
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#endif
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#ifdef __ppc__
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#define FORCE_RET() asm volatile ("blr")
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#endif
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#ifdef __s390__
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#define FORCE_RET() asm volatile ("br %r14")
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#endif
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@ -292,13 +295,17 @@ void OPPROTO op_execute(uint8 *entry_point, basic_cpu *this_cpu)
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#endif
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SLOW_DISPATCH(entry_point);
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func(); // NOTE: never called, fake to make compiler save return point
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#ifdef ASM_OP_EXEC_RETURN_INSN
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asm volatile ("1: .byte " ASM_OP_EXEC_RETURN_INSN);
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#else
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asm volatile (ASM_DATA_SECTION);
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asm volatile (".global " ASM_NAME(op_exec_return_offset));
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asm volatile (ASM_GLOBAL " " ASM_NAME(op_exec_return_offset));
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asm volatile (ASM_NAME(op_exec_return_offset) ":");
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asm volatile (".long 1f-" ASM_NAME(op_execute));
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asm volatile (ASM_SIZE(op_exec_return_offset));
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asm volatile (ASM_PREVIOUS_SECTION);
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asm volatile ("1:");
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#endif
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#ifdef REG_T3
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reg_T3 = saved_T3;
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#endif
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@ -28,7 +28,7 @@
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// Set jump target address
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static inline void dg_set_jmp_target(uint8 *jmp_addr, uint8 *addr)
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{
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#if defined(__powerpc__)
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#if defined(__powerpc__) || defined(__ppc__)
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// patch the branch destination
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uint32 *ptr = (uint32 *)jmp_addr;
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uint32 val = *ptr;
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@ -241,7 +241,7 @@ public:
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inline bool
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basic_dyngen::direct_jump_possible(uintptr target) const
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{
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#if defined(__powerpc__)
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#if defined(__powerpc__) || defined(__ppc__)
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const uintptr LI_OFFSET_MAX = 1 << 26;
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return (((target - (uintptr)code_ptr()) < LI_OFFSET_MAX) ||
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(((uintptr)code_ptr() - target) < LI_OFFSET_MAX));
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@ -283,7 +283,7 @@ basic_dyngen::gen_exec_return()
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inline bool
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basic_dyngen::direct_call_possible(uintptr target) const
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{
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#if defined(__powerpc__)
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#if defined(__powerpc__) || defined(__ppc__)
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const uintptr LI_OFFSET_MAX = 1 << 26;
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return (((target - (uintptr)code_ptr()) < LI_OFFSET_MAX) ||
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(((uintptr)code_ptr() - target) < LI_OFFSET_MAX));
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@ -85,7 +85,11 @@ extern int __op_param1 __hidden;
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extern int __op_param2 __hidden;
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extern int __op_param3 __hidden;
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#else
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#if defined(__APPLE__) && defined(__MACH__)
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static int __op_param1, __op_param2, __op_param3;
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#else
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extern int __op_param1, __op_param2, __op_param3;
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#endif
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#define PARAM1 ((long)(&__op_param1))
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#define PARAM2 ((long)(&__op_param2))
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#define PARAM3 ((long)(&__op_param3))
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@ -97,7 +101,7 @@ extern int __op_cpuparam;
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#endif
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// Direct block chaining support
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#if defined(__powerpc__)
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#if defined(__powerpc__) || defined(__ppc__)
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#define DYNGEN_FAST_DISPATCH(TARGET) asm volatile ("b " ASM_NAME(TARGET))
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#endif
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#if defined(__i386__) || defined(__x86_64__)
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@ -108,15 +112,26 @@ extern int __op_jmp0, __op_jmp1;
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// Sections handling
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#if defined(__CYGWIN__) || defined(_WIN32)
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#define ASM_DATA_SECTION ".section .data\n"
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#define ASM_PREVIOUS_SECTION ".section .text\n"
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#define ASM_NAME(NAME) "_" #NAME
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#define ASM_SIZE(NAME) ""
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#define ASM_DATA_SECTION ".section .data\n"
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#define ASM_PREVIOUS_SECTION ".section .text\n"
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#define ASM_GLOBAL ".global"
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#define ASM_NAME(NAME) "_" #NAME
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#define ASM_SIZE ""
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#elif defined(__APPLE__) && defined(__MACH__)
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#define ASM_DATA_SECTION ".data\n"
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#define ASM_PREVIOUS_SECTION ".text\n"
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#define ASM_GLOBAL ".globl"
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#define ASM_NAME(NAME) "_" #NAME
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#define ASM_SIZE ""
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#if defined(__ppc__)
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#define ASM_OP_EXEC_RETURN_INSN "0x18,0xde,0xad,0xff"
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#endif
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#else
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#define ASM_DATA_SECTION ".section \".data\"\n"
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#define ASM_PREVIOUS_SECTION ".previous\n"
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#define ASM_NAME(NAME) #NAME
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#define ASM_SIZE(NAME) ".size " ASM_NAME(NAME) ",.-" ASM_NAME(NAME)
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#define ASM_DATA_SECTION ".section \".data\"\n"
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#define ASM_PREVIOUS_SECTION ".previous\n"
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#define ASM_GLOBAL ".global"
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#define ASM_NAME(NAME) #NAME
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#define ASM_SIZE(NAME) ".size " ASM_NAME(NAME) ",.-" ASM_NAME(NAME)
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#endif
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#endif /* DYNGEN_EXEC_H */
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@ -39,13 +39,18 @@
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#define CONFIG_WIN32 1
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#endif
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#endif
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#ifndef CONFIG_DARWIN
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#if defined(__APPLE__) && defined(__MACH__)
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#define CONFIG_DARWIN 1
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#endif
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#endif
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/* host cpu defs */
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#if CONFIG_WIN32
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#define HOST_I386 1
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#elif defined(__i386__)
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#define HOST_I386 1
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#elif defined(__powerpc__)
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#elif defined(__powerpc__) || defined(__ppc__)
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#define HOST_PPC 1
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#elif defined(__s390__)
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#define HOST_S390 1
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@ -1083,6 +1088,7 @@ struct symtab_command *symtabcmd = 0;
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/* section */
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struct section *section_hdr;
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struct section *text_sec_hdr;
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struct section *data_sec_hdr;
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uint8_t **sdata;
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/* relocs */
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@ -1265,11 +1271,11 @@ static const char * get_reloc_name(EXE_RELOC * rel, int * sslide)
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switch(rel->r_type)
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{
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case PPC_RELOC_LO16: fetch_next_pair_value(rel+1, &other_half); sectoffset = (sectoffset & 0xffff);
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case PPC_RELOC_LO16: fetch_next_pair_value(rel+1, &other_half); sectoffset |= (other_half << 16);
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break;
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case PPC_RELOC_HI16: fetch_next_pair_value(rel+1, &other_half); sectoffset = (other_half & 0xffff);
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case PPC_RELOC_HI16: fetch_next_pair_value(rel+1, &other_half); sectoffset = (sectoffset << 16) | (uint16_t)(other_half & 0xffff);
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break;
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case PPC_RELOC_HA16: fetch_next_pair_value(rel+1, &other_half); sectoffset = (other_half & 0xffff);
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case PPC_RELOC_HA16: fetch_next_pair_value(rel+1, &other_half); sectoffset = (sectoffset << 16) + (int16_t)(other_half & 0xffff);
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break;
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case PPC_RELOC_BR24:
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sectoffset = ( *(uint32_t *)(text + rel->r_address) & 0x03fffffc );
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@ -1384,10 +1390,16 @@ int load_object(const char *filename, FILE *outfile)
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sdata = (uint8_t **)malloc(sizeof(void *) * segment->nsects);
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memset(sdata, 0, sizeof(void *) * segment->nsects);
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/* Load the data in section data */
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for(i = 0; i < segment->nsects; i++) {
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/* Load the data in section data */
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for(i = 0; i < segment->nsects; i++)
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sdata[i] = load_data(fd, section_hdr[i].offset, section_hdr[i].size);
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}
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/* data section */
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data_sec_hdr = find_mach_sec_hdr(section_hdr, segment->nsects, SEG_DATA, SECT_DATA);
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i = find_mach_sec_index(section_hdr, segment->nsects, SEG_DATA, SECT_DATA);
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if (i == -1 || !data_sec_hdr)
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error("could not find __DATA,__data section");
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data = sdata[i];
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/* text section */
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text_sec_hdr = find_mach_sec_hdr(section_hdr, segment->nsects, SEG_TEXT, SECT_TEXT);
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@ -1415,13 +1427,11 @@ int load_object(const char *filename, FILE *outfile)
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/* Now transform the symtab, to an extended version, with the sym size, and the C name */
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for(i = 0, sym = symtab, syment = symtab_std; i < nb_syms; i++, sym++, syment++) {
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const char *name;
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struct nlist *sym_follow, *sym_next = 0;
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unsigned int j;
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name = find_str_by_index(sym->n_un.n_strx);
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memset(sym, 0, sizeof(*sym));
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if ( sym->n_type & N_STAB ) /* Debug symbols are skipped */
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if ( syment->n_type & N_STAB ) /* Debug symbols are skipped */
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continue;
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memcpy(sym, syment, sizeof(*syment));
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@ -1581,8 +1591,16 @@ void gen_code(const char *name, const char *demangled_name,
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p_start = text + offset;
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p_end = p_start + size;
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start_offset = offset;
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if (op_execute)
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copy_size = p_end - p_start;
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if (op_execute) {
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uint8_t *p;
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copy_size = p_end - p_start;
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#if defined(HOST_PPC)
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for (p = p_start; p < p_end; p += 4) {
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if (get32((uint32_t *)p) == 0x18deadff)
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fprintf(outfile, "DEFINE_CST(op_exec_return_offset,0x%xL)\n\n", (p + 4) - p_start);
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}
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#endif
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}
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else
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#if defined(HOST_I386) || defined(HOST_AMD64)
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#ifdef CONFIG_FORMAT_COFF
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@ -2130,11 +2148,16 @@ void gen_code(const char *name, const char *demangled_name,
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switch(type) {
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case PPC_RELOC_BR24:
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if (!strstart(sym_name, "__op_param", &p)) {
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fprintf(outfile, "{\n");
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fprintf(outfile, " uint32_t imm = *(uint32_t *)(code_ptr() + %d) & 0x3fffffc;\n", slide);
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fprintf(outfile, " *(uint32_t *)(code_ptr() + %d) = (*(uint32_t *)(code_ptr() + %d) & ~0x03fffffc) | ((imm + ((long)%s - (long)code_ptr()) + %d) & 0x03fffffc);\n",
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slide, slide, name, sslide );
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fprintf(outfile, "}\n");
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} else {
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fprintf(outfile, " *(uint32_t *)(code_ptr() + %d) = (*(uint32_t *)(code_ptr() + %d) & ~0x03fffffc) | (((long)%s - (long)code_ptr() - %d) & 0x03fffffc);\n",
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slide, slide, final_sym_name, slide);
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}
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break;
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case PPC_RELOC_HI16:
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fprintf(outfile, " *(uint16_t *)(code_ptr() + %d + 2) = (%s + %d) >> 16;\n",
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@ -32,7 +32,7 @@
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// Default cache size
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#if defined(__alpha__)
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const int JIT_CACHE_SIZE = 2 * 1024 * 1024;
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#elif defined(__powerpc__)
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#elif defined(__powerpc__) || defined(__ppc__)
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const int JIT_CACHE_SIZE = 4 * 1024 * 1024;
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#else
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const int JIT_CACHE_SIZE = 8 * 1024 * 1024;
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@ -25,7 +25,7 @@
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/// Optimized memory accessors
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///
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#if defined(__i386__) || defined(__powerpc__) || defined(__m68k__) || defined(__x86_64__)
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#if defined(__i386__) || defined(__powerpc__) || defined(__ppc__) || defined(__m68k__) || defined(__x86_64__)
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# define VM_CAN_ACCESS_UNALIGNED
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#endif
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