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authorbellard <bellard@c046a42c-6fe2-441c-8c8c-71466251a162>2003-09-30 20:59:51 +0000
committerbellard <bellard@c046a42c-6fe2-441c-8c8c-71466251a162>2003-09-30 20:59:51 +0000
commitd3eead2eec2f74fded2bed2cb8c21fd8404aeeb9 (patch)
tree83debc4258f9c1f7aa10bcc6d54bd57aab64067d /exec.h
parent853d6f7a835ff33cf53f2922e4039d4cfad8ac17 (diff)
new directory structure
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@390 c046a42c-6fe2-441c-8c8c-71466251a162
Diffstat (limited to 'exec.h')
-rw-r--r--exec.h417
1 files changed, 0 insertions, 417 deletions
diff --git a/exec.h b/exec.h
deleted file mode 100644
index 070a162f36..0000000000
--- a/exec.h
+++ /dev/null
@@ -1,417 +0,0 @@
-/*
- * internal execution defines for qemu
- *
- * Copyright (c) 2003 Fabrice Bellard
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with this library; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- */
-
-/* allow to see translation results - the slowdown should be negligible, so we leave it */
-#define DEBUG_DISAS
-
-#ifndef glue
-#define xglue(x, y) x ## y
-#define glue(x, y) xglue(x, y)
-#define stringify(s) tostring(s)
-#define tostring(s) #s
-#endif
-
-#if GCC_MAJOR < 3
-#define __builtin_expect(x, n) (x)
-#endif
-
-#ifdef __i386__
-#define REGPARM(n) __attribute((regparm(n)))
-#else
-#define REGPARM(n)
-#endif
-
-/* is_jmp field values */
-#define DISAS_NEXT 0 /* next instruction can be analyzed */
-#define DISAS_JUMP 1 /* only pc was modified dynamically */
-#define DISAS_UPDATE 2 /* cpu state was modified dynamically */
-#define DISAS_TB_JUMP 3 /* only pc was modified statically */
-
-struct TranslationBlock;
-
-/* XXX: make safe guess about sizes */
-#define MAX_OP_PER_INSTR 32
-#define OPC_BUF_SIZE 512
-#define OPC_MAX_SIZE (OPC_BUF_SIZE - MAX_OP_PER_INSTR)
-
-#define OPPARAM_BUF_SIZE (OPC_BUF_SIZE * 3)
-
-extern uint16_t gen_opc_buf[OPC_BUF_SIZE];
-extern uint32_t gen_opparam_buf[OPPARAM_BUF_SIZE];
-extern uint32_t gen_opc_pc[OPC_BUF_SIZE];
-extern uint8_t gen_opc_cc_op[OPC_BUF_SIZE];
-extern uint8_t gen_opc_instr_start[OPC_BUF_SIZE];
-
-#if defined(TARGET_I386)
-
-void optimize_flags_init(void);
-
-#endif
-
-extern FILE *logfile;
-extern int loglevel;
-
-int gen_intermediate_code(CPUState *env, struct TranslationBlock *tb);
-int gen_intermediate_code_pc(CPUState *env, struct TranslationBlock *tb);
-void dump_ops(const uint16_t *opc_buf, const uint32_t *opparam_buf);
-int cpu_gen_code(CPUState *env, struct TranslationBlock *tb,
- int max_code_size, int *gen_code_size_ptr);
-int cpu_restore_state(struct TranslationBlock *tb,
- CPUState *env, unsigned long searched_pc);
-void cpu_exec_init(void);
-int page_unprotect(unsigned long address);
-void page_unmap(void);
-void tlb_flush_page(CPUState *env, uint32_t addr);
-void tlb_flush(CPUState *env);
-
-#define CODE_GEN_MAX_SIZE 65536
-#define CODE_GEN_ALIGN 16 /* must be >= of the size of a icache line */
-
-#define CODE_GEN_HASH_BITS 15
-#define CODE_GEN_HASH_SIZE (1 << CODE_GEN_HASH_BITS)
-
-/* maximum total translate dcode allocated */
-#define CODE_GEN_BUFFER_SIZE (2048 * 1024)
-//#define CODE_GEN_BUFFER_SIZE (128 * 1024)
-
-#if defined(__powerpc__)
-#define USE_DIRECT_JUMP
-#endif
-
-typedef struct TranslationBlock {
- unsigned long pc; /* simulated PC corresponding to this block (EIP + CS base) */
- unsigned long cs_base; /* CS base for this block */
- unsigned int flags; /* flags defining in which context the code was generated */
- uint16_t size; /* size of target code for this block (1 <=
- size <= TARGET_PAGE_SIZE) */
- uint8_t *tc_ptr; /* pointer to the translated code */
- struct TranslationBlock *hash_next; /* next matching block */
- struct TranslationBlock *page_next[2]; /* next blocks in even/odd page */
- /* the following data are used to directly call another TB from
- the code of this one. */
- uint16_t tb_next_offset[2]; /* offset of original jump target */
-#ifdef USE_DIRECT_JUMP
- uint16_t tb_jmp_offset[4]; /* offset of jump instruction */
-#else
- uint32_t tb_next[2]; /* address of jump generated code */
-#endif
- /* list of TBs jumping to this one. This is a circular list using
- the two least significant bits of the pointers to tell what is
- the next pointer: 0 = jmp_next[0], 1 = jmp_next[1], 2 =
- jmp_first */
- struct TranslationBlock *jmp_next[2];
- struct TranslationBlock *jmp_first;
-} TranslationBlock;
-
-static inline unsigned int tb_hash_func(unsigned long pc)
-{
- return pc & (CODE_GEN_HASH_SIZE - 1);
-}
-
-TranslationBlock *tb_alloc(unsigned long pc);
-void tb_flush(void);
-void tb_link(TranslationBlock *tb);
-
-extern TranslationBlock *tb_hash[CODE_GEN_HASH_SIZE];
-
-extern uint8_t code_gen_buffer[CODE_GEN_BUFFER_SIZE];
-extern uint8_t *code_gen_ptr;
-
-/* find a translation block in the translation cache. If not found,
- return NULL and the pointer to the last element of the list in pptb */
-static inline TranslationBlock *tb_find(TranslationBlock ***pptb,
- unsigned long pc,
- unsigned long cs_base,
- unsigned int flags)
-{
- TranslationBlock **ptb, *tb;
- unsigned int h;
-
- h = tb_hash_func(pc);
- ptb = &tb_hash[h];
- for(;;) {
- tb = *ptb;
- if (!tb)
- break;
- if (tb->pc == pc && tb->cs_base == cs_base && tb->flags == flags)
- return tb;
- ptb = &tb->hash_next;
- }
- *pptb = ptb;
- return NULL;
-}
-
-#if defined(__powerpc__)
-
-static inline void tb_set_jmp_target1(unsigned long jmp_addr, unsigned long addr)
-{
- uint32_t val, *ptr;
-
- /* patch the branch destination */
- ptr = (uint32_t *)jmp_addr;
- val = *ptr;
- val = (val & ~0x03fffffc) | ((addr - jmp_addr) & 0x03fffffc);
- *ptr = val;
- /* flush icache */
- asm volatile ("dcbst 0,%0" : : "r"(ptr) : "memory");
- asm volatile ("sync" : : : "memory");
- asm volatile ("icbi 0,%0" : : "r"(ptr) : "memory");
- asm volatile ("sync" : : : "memory");
- asm volatile ("isync" : : : "memory");
-}
-
-static inline void tb_set_jmp_target(TranslationBlock *tb,
- int n, unsigned long addr)
-{
- unsigned long offset;
-
- offset = tb->tb_jmp_offset[n];
- tb_set_jmp_target1((unsigned long)(tb->tc_ptr + offset), addr);
- offset = tb->tb_jmp_offset[n + 2];
- if (offset != 0xffff)
- tb_set_jmp_target1((unsigned long)(tb->tc_ptr + offset), addr);
-}
-
-#else
-
-/* set the jump target */
-static inline void tb_set_jmp_target(TranslationBlock *tb,
- int n, unsigned long addr)
-{
- tb->tb_next[n] = addr;
-}
-
-#endif
-
-static inline void tb_add_jump(TranslationBlock *tb, int n,
- TranslationBlock *tb_next)
-{
- /* NOTE: this test is only needed for thread safety */
- if (!tb->jmp_next[n]) {
- /* patch the native jump address */
- tb_set_jmp_target(tb, n, (unsigned long)tb_next->tc_ptr);
-
- /* add in TB jmp circular list */
- tb->jmp_next[n] = tb_next->jmp_first;
- tb_next->jmp_first = (TranslationBlock *)((long)(tb) | (n));
- }
-}
-
-TranslationBlock *tb_find_pc(unsigned long pc_ptr);
-
-#ifndef offsetof
-#define offsetof(type, field) ((size_t) &((type *)0)->field)
-#endif
-
-#if defined(__powerpc__)
-
-/* on PowerPC we patch the jump instruction directly */
-#define JUMP_TB(opname, tbparam, n, eip)\
-do {\
- asm volatile (".section \".data\"\n"\
- "__op_label" #n "." stringify(opname) ":\n"\
- ".long 1f\n"\
- ".previous\n"\
- "b __op_jmp" #n "\n"\
- "1:\n");\
- T0 = (long)(tbparam) + (n);\
- EIP = eip;\
- EXIT_TB();\
-} while (0)
-
-#define JUMP_TB2(opname, tbparam, n)\
-do {\
- asm volatile ("b __op_jmp%0\n" : : "i" (n + 2));\
-} while (0)
-
-#else
-
-/* jump to next block operations (more portable code, does not need
- cache flushing, but slower because of indirect jump) */
-#define JUMP_TB(opname, tbparam, n, eip)\
-do {\
- static void __attribute__((unused)) *__op_label ## n = &&label ## n;\
- static void __attribute__((unused)) *dummy ## n = &&dummy_label ## n;\
- goto *(void *)(((TranslationBlock *)tbparam)->tb_next[n]);\
-label ## n:\
- T0 = (long)(tbparam) + (n);\
- EIP = eip;\
-dummy_label ## n:\
- EXIT_TB();\
-} while (0)
-
-/* second jump to same destination 'n' */
-#define JUMP_TB2(opname, tbparam, n)\
-do {\
- goto *(void *)(((TranslationBlock *)tbparam)->tb_next[n]);\
-} while (0)
-
-#endif
-
-/* physical memory access */
-#define IO_MEM_NB_ENTRIES 256
-#define TLB_INVALID_MASK (1 << 3)
-#define IO_MEM_SHIFT 4
-#define IO_MEM_UNASSIGNED (1 << IO_MEM_SHIFT)
-
-unsigned long physpage_find(unsigned long page);
-
-extern CPUWriteMemoryFunc *io_mem_write[IO_MEM_NB_ENTRIES][4];
-extern CPUReadMemoryFunc *io_mem_read[IO_MEM_NB_ENTRIES][4];
-
-#ifdef __powerpc__
-static inline int testandset (int *p)
-{
- int ret;
- __asm__ __volatile__ (
- "0: lwarx %0,0,%1 ;"
- " xor. %0,%3,%0;"
- " bne 1f;"
- " stwcx. %2,0,%1;"
- " bne- 0b;"
- "1: "
- : "=&r" (ret)
- : "r" (p), "r" (1), "r" (0)
- : "cr0", "memory");
- return ret;
-}
-#endif
-
-#ifdef __i386__
-static inline int testandset (int *p)
-{
- char ret;
- long int readval;
-
- __asm__ __volatile__ ("lock; cmpxchgl %3, %1; sete %0"
- : "=q" (ret), "=m" (*p), "=a" (readval)
- : "r" (1), "m" (*p), "a" (0)
- : "memory");
- return ret;
-}
-#endif
-
-#ifdef __s390__
-static inline int testandset (int *p)
-{
- int ret;
-
- __asm__ __volatile__ ("0: cs %0,%1,0(%2)\n"
- " jl 0b"
- : "=&d" (ret)
- : "r" (1), "a" (p), "0" (*p)
- : "cc", "memory" );
- return ret;
-}
-#endif
-
-#ifdef __alpha__
-static inline int testandset (int *p)
-{
- int ret;
- unsigned long one;
-
- __asm__ __volatile__ ("0: mov 1,%2\n"
- " ldl_l %0,%1\n"
- " stl_c %2,%1\n"
- " beq %2,1f\n"
- ".subsection 2\n"
- "1: br 0b\n"
- ".previous"
- : "=r" (ret), "=m" (*p), "=r" (one)
- : "m" (*p));
- return ret;
-}
-#endif
-
-#ifdef __sparc__
-static inline int testandset (int *p)
-{
- int ret;
-
- __asm__ __volatile__("ldstub [%1], %0"
- : "=r" (ret)
- : "r" (p)
- : "memory");
-
- return (ret ? 1 : 0);
-}
-#endif
-
-#ifdef __arm__
-static inline int testandset (int *spinlock)
-{
- register unsigned int ret;
- __asm__ __volatile__("swp %0, %1, [%2]"
- : "=r"(ret)
- : "0"(1), "r"(spinlock));
-
- return ret;
-}
-#endif
-
-#ifdef __mc68000
-static inline int testandset (int *p)
-{
- char ret;
- __asm__ __volatile__("tas %1; sne %0"
- : "=r" (ret)
- : "m" (p)
- : "cc","memory");
- return ret == 0;
-}
-#endif
-
-typedef int spinlock_t;
-
-#define SPIN_LOCK_UNLOCKED 0
-
-#if 1
-static inline void spin_lock(spinlock_t *lock)
-{
- while (testandset(lock));
-}
-
-static inline void spin_unlock(spinlock_t *lock)
-{
- *lock = 0;
-}
-
-static inline int spin_trylock(spinlock_t *lock)
-{
- return !testandset(lock);
-}
-#else
-static inline void spin_lock(spinlock_t *lock)
-{
-}
-
-static inline void spin_unlock(spinlock_t *lock)
-{
-}
-
-static inline int spin_trylock(spinlock_t *lock)
-{
- return 1;
-}
-#endif
-
-extern spinlock_t tb_lock;
-