Revision 8a40a180 exec-all.h
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#define CODE_GEN_MAX_SIZE 65536 |
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#define CODE_GEN_ALIGN 16 /* must be >= of the size of a icache line */ |
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#define CODE_GEN_HASH_BITS 15 |
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#define CODE_GEN_HASH_SIZE (1 << CODE_GEN_HASH_BITS) |
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#define CODE_GEN_PHYS_HASH_BITS 15 |
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#define CODE_GEN_PHYS_HASH_SIZE (1 << CODE_GEN_PHYS_HASH_BITS) |
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| ... | ... | |
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#define CF_SINGLE_INSN 0x0008 /* compile only a single instruction */ |
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uint8_t *tc_ptr; /* pointer to the translated code */ |
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struct TranslationBlock *hash_next; /* next matching tb for virtual address */ |
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/* next matching tb for physical address. */ |
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struct TranslationBlock *phys_hash_next; |
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/* first and second physical page containing code. The lower bit |
| ... | ... | |
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struct TranslationBlock *jmp_first; |
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} TranslationBlock; |
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static inline unsigned int tb_hash_func(target_ulong pc) |
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static inline unsigned int tb_jmp_cache_hash_func(target_ulong pc)
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{
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return pc & (CODE_GEN_HASH_SIZE - 1);
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return (pc ^ (pc >> TB_JMP_CACHE_BITS)) & (TB_JMP_CACHE_SIZE - 1);
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} |
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static inline unsigned int tb_phys_hash_func(unsigned long pc) |
| ... | ... | |
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TranslationBlock *tb_alloc(target_ulong pc); |
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void tb_flush(CPUState *env); |
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void tb_link(TranslationBlock *tb); |
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void tb_link_phys(TranslationBlock *tb, |
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target_ulong phys_pc, target_ulong phys_page2); |
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extern TranslationBlock *tb_hash[CODE_GEN_HASH_SIZE]; |
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extern TranslationBlock *tb_phys_hash[CODE_GEN_PHYS_HASH_SIZE]; |
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extern uint8_t code_gen_buffer[CODE_GEN_BUFFER_SIZE]; |
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extern uint8_t *code_gen_ptr; |
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/* find a translation block in the translation cache. If not found, |
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return NULL and the pointer to the last element of the list in pptb */ |
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static inline TranslationBlock *tb_find(TranslationBlock ***pptb, |
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target_ulong pc, |
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target_ulong cs_base, |
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unsigned int flags) |
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{
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TranslationBlock **ptb, *tb; |
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unsigned int h; |
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h = tb_hash_func(pc); |
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ptb = &tb_hash[h]; |
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for(;;) {
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tb = *ptb; |
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if (!tb) |
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break; |
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if (tb->pc == pc && tb->cs_base == cs_base && tb->flags == flags) |
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return tb; |
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ptb = &tb->hash_next; |
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} |
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*pptb = ptb; |
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return NULL; |
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} |
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#if defined(USE_DIRECT_JUMP) |
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#if defined(__powerpc__) |
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