Revision 0a878c47 exec-all.h
| b/exec-all.h | ||
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| 184 | 184 |
#if defined(USE_DIRECT_JUMP) |
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#if defined(__powerpc__) |
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static inline void flush_icache_range(unsigned long start, unsigned long stop); |
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static inline void tb_set_jmp_target1(unsigned long jmp_addr, unsigned long addr) |
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{
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uint32_t val, *ptr; |
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/* This must be in concord with INDEX_op_goto_tb inside tcg_out_op */ |
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uint32_t *ptr; |
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long disp = addr - jmp_addr; |
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unsigned long patch_size; |
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ptr = (uint32_t *)jmp_addr; |
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val = *ptr; |
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if ((disp << 6) >> 6 != disp) {
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uint16_t *p1; |
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p1 = (uint16_t *) ptr; |
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*ptr = (val & ~0x03fffffc) | 4; |
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p1[3] = addr >> 16; |
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p1[5] = addr & 0xffff; |
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ptr[0] = 0x3c000000 | (addr >> 16); /* lis 0,addr@ha */ |
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ptr[1] = 0x60000000 | (addr & 0xffff); /* la 0,addr@l(0) */ |
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ptr[2] = 0x7c0903a6; /* mtctr 0 */ |
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ptr[3] = 0x4e800420; /* brctr */ |
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patch_size = 16; |
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} else {
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/* patch the branch destination */ |
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val = (val & ~0x03fffffc) | (disp & 0x03fffffc); |
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*ptr = val; |
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if (disp != 16) {
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*ptr = 0x48000000 | (disp & 0x03fffffc); /* b disp */ |
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patch_size = 4; |
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} else {
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ptr[0] = 0x60000000; /* nop */ |
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ptr[1] = 0x60000000; |
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ptr[2] = 0x60000000; |
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ptr[3] = 0x60000000; |
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patch_size = 16; |
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} |
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} |
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/* flush icache */ |
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asm volatile ("dcbst 0,%0" : : "r"(ptr) : "memory");
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asm volatile ("sync" : : : "memory");
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asm volatile ("icbi 0,%0" : : "r"(ptr) : "memory");
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asm volatile ("sync" : : : "memory");
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asm volatile ("isync" : : : "memory");
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flush_icache_range(jmp_addr, jmp_addr + patch_size); |
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} |
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#elif defined(__i386__) || defined(__x86_64__) |
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static inline void tb_set_jmp_target1(unsigned long jmp_addr, unsigned long addr) |
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