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authorRichard Henderson <richard.henderson@linaro.org>2024-04-06 10:42:10 -1000
committerRichard Henderson <richard.henderson@linaro.org>2024-04-09 07:45:05 -1000
commite7face702ac1e98109dbfde557e7974ea04a295d (patch)
tree9d2a94775bf925353b4a64342f6e3b85c3238fc4
parent07843f75fdaff26950e4ddfd5d03556915fee1a7 (diff)
accel/tcg: Add insn_start to DisasContextBase
This is currently target-specific for many; begin making it target independent. Tested-by: Jørgen Hansen <Jorgen.Hansen@wdc.com> Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
-rw-r--r--accel/tcg/translator.c2
-rw-r--r--include/exec/translator.h3
2 files changed, 5 insertions, 0 deletions
diff --git a/accel/tcg/translator.c b/accel/tcg/translator.c
index 38c34009a5..ae61c154c2 100644
--- a/accel/tcg/translator.c
+++ b/accel/tcg/translator.c
@@ -140,6 +140,7 @@ void translator_loop(CPUState *cpu, TranslationBlock *tb, int *max_insns,
db->max_insns = *max_insns;
db->singlestep_enabled = cflags & CF_SINGLE_STEP;
db->saved_can_do_io = -1;
+ db->insn_start = NULL;
db->host_addr[0] = host_pc;
db->host_addr[1] = NULL;
@@ -157,6 +158,7 @@ void translator_loop(CPUState *cpu, TranslationBlock *tb, int *max_insns,
while (true) {
*max_insns = ++db->num_insns;
ops->insn_start(db, cpu);
+ db->insn_start = tcg_last_op();
tcg_debug_assert(db->is_jmp == DISAS_NEXT); /* no early exit */
if (plugin_enabled) {
diff --git a/include/exec/translator.h b/include/exec/translator.h
index 51624feb10..ceaeca8c91 100644
--- a/include/exec/translator.h
+++ b/include/exec/translator.h
@@ -74,6 +74,8 @@ typedef enum DisasJumpType {
* @singlestep_enabled: "Hardware" single stepping enabled.
* @saved_can_do_io: Known value of cpu->neg.can_do_io, or -1 for unknown.
* @plugin_enabled: TCG plugin enabled in this TB.
+ * @insn_start: The last op emitted by the insn_start hook,
+ * which is expected to be INDEX_op_insn_start.
*
* Architecture-agnostic disassembly context.
*/
@@ -87,6 +89,7 @@ typedef struct DisasContextBase {
bool singlestep_enabled;
int8_t saved_can_do_io;
bool plugin_enabled;
+ struct TCGOp *insn_start;
void *host_addr[2];
} DisasContextBase;