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Uc hook tcg improve #2011

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Uc hook tcg improve #2011

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9a160ed
Add handling UC_TCG_OP_FLAG_CMP for ARM
dotCirill Jul 14, 2024
9b346e6
Merge remote-tracking branch 'origin/dev' into uc_hook_tcg_improve
dotCirill Sep 25, 2024
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15 changes: 15 additions & 0 deletions qemu/target/arm/translate.c
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Original file line number Diff line number Diff line change
Expand Up @@ -31,6 +31,7 @@

#include "exec/helper-proto.h"
#include "exec/helper-gen.h"
#include "uc_priv.h"

#define ENABLE_ARCH_4T arm_dc_feature(s, ARM_FEATURE_V4T)
#define ENABLE_ARCH_5 arm_dc_feature(s, ARM_FEATURE_V5)
Expand Down Expand Up @@ -496,6 +497,20 @@ static void gen_adc_CC(TCGContext *tcg_ctx, TCGv_i32 dest, TCGv_i32 t0, TCGv_i32
/* dest = T0 - T1. Compute C, N, V and Z flags */
static void gen_sub_CC(TCGContext *tcg_ctx, TCGv_i32 dest, TCGv_i32 t0, TCGv_i32 t1)
{
// Process TCG_OPCODE hook
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 & UC_TCG_OP_FLAG_CMP) ) {
gen_uc_traceopcode(tcg_ctx, hook, (TCGv_i64)t0, (TCGv_i64)t1, 32, uc, tcg_ctx->pc_start);
}
}
}

TCGv_i32 tmp;
tcg_gen_sub_i32(tcg_ctx, tcg_ctx->cpu_NF, t0, t1);
tcg_gen_mov_i32(tcg_ctx, tcg_ctx->cpu_ZF, tcg_ctx->cpu_NF);
Expand Down
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