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Add a new hook type UC_HOOK_TCG_OPCODE

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This commit is contained in:
lazymio
2021-11-03 01:46:24 +01:00
parent eb75d459f0
commit bcf85be86d
15 changed files with 241 additions and 2 deletions
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46
qemu/include/tcg/tcg-op.h
View File

@ -42,6 +42,24 @@ static inline void gen_uc_tracecode(TCGContext *tcg_ctx, int32_t size, int32_t t
tcg_temp_free_i32(tcg_ctx, tsize);
}
static inline void gen_uc_traceopcode(TCGContext *tcg_ctx, void* hook, TCGv_i64 arg1, TCGv_i64 arg2, void *uc, uint64_t pc)
{
TCGv_ptr thook = tcg_const_ptr(tcg_ctx, hook);
TCGv_ptr tuc = tcg_const_ptr(tcg_ctx, uc);
TCGv_i64 tpc = tcg_const_i64(tcg_ctx, pc);
// #if TARGET_LONG_BITS == 32
// TCGv_i64 targ1 = temp_tcgv_i64(tcg_ctx, tcgv_i32_temp(tcg_ctx, arg1));
// TCGv_i64 targ2 = temp_tcgv_i64(tcg_ctx, tcgv_i32_temp(tcg_ctx, arg2));
// #else
// TCGv_i64 targ1 = arg1;
// TCGv_i64 targ2 = arg2;
// #endif
gen_helper_uc_traceopcode(tcg_ctx, thook, arg1, arg2, tuc, tpc);
tcg_temp_free_i64(tcg_ctx, tpc);
tcg_temp_free_ptr(tcg_ctx, tuc);
tcg_temp_free_ptr(tcg_ctx, thook);
}
/* Basic output routines. Not for general consumption. */
void tcg_gen_op1(TCGContext *tcg_ctx, TCGOpcode, TCGArg);
@ -422,6 +440,20 @@ static inline void tcg_gen_add_i32(TCGContext *tcg_ctx, TCGv_i32 ret, TCGv_i32 a
static inline void tcg_gen_sub_i32(TCGContext *tcg_ctx, TCGv_i32 ret, TCGv_i32 arg1, TCGv_i32 arg2)
{
uc_engine *uc = tcg_ctx->uc;
if (HOOK_EXISTS_BOUNDED(uc, UC_HOOK_TCG_OPCODE, tcg_ctx->pc_start)) {
struct hook *hook;
HOOK_FOREACH_VAR_DECLARE;
HOOK_FOREACH(uc, hook, UC_HOOK_TCG_OPCODE) {
if (hook->to_delete)
continue;
if (hook->op == UC_TCG_OP_SUB && hook->op_flags == 0) {
gen_uc_traceopcode(tcg_ctx, hook, (TCGv_i64)arg1, (TCGv_i64)arg2, uc, tcg_ctx->pc_start);
}
}
}
tcg_gen_op3_i32(tcg_ctx, INDEX_op_sub_i32, ret, arg1, arg2);
}
@ -641,6 +673,20 @@ static inline void tcg_gen_add_i64(TCGContext *tcg_ctx, TCGv_i64 ret, TCGv_i64 a
static inline void tcg_gen_sub_i64(TCGContext *tcg_ctx, TCGv_i64 ret, TCGv_i64 arg1, TCGv_i64 arg2)
{
uc_engine *uc = tcg_ctx->uc;
if (HOOK_EXISTS_BOUNDED(uc, UC_HOOK_TCG_OPCODE, tcg_ctx->pc_start)) {
struct hook *hook;
HOOK_FOREACH_VAR_DECLARE;
HOOK_FOREACH(uc, hook, UC_HOOK_TCG_OPCODE) {
if (hook->to_delete)
continue;
if (hook->op == UC_TCG_OP_SUB && hook->op_flags == 0) {
gen_uc_traceopcode(tcg_ctx, hook, arg1, arg2, uc, tcg_ctx->pc_start);
}
}
}
tcg_gen_op3_i64(tcg_ctx, INDEX_op_sub_i64, ret, arg1, arg2);
}

3
qemu/include/tcg/tcg.h
View File

@ -791,6 +791,9 @@ struct TCGContext {
TCGv NULL_QREG;
/* Used to distinguish stores from bad addressing modes. */
TCGv store_dummy;
// Used to store the start of current instrution.
uint64_t pc_start;
};
static inline size_t temp_idx(TCGContext *tcg_ctx, TCGTemp *ts)