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target/s390x: Drop check for singlestep_enabled

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GDB single-stepping is now handled generically.

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
This commit is contained in:
Richard Henderson 2021-07-19 14:52:20 -10:00
parent b6509e35b9
commit 2df7a3618a
1 changed files with 2 additions and 6 deletions
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8
target/s390x/tcg/translate.c
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@ -149,7 +149,6 @@ struct DisasContext {
uint64_t pc_tmp;
uint32_t ilen;
enum cc_op cc_op;
bool do_debug;
};
/* Information carried about a condition to be evaluated. */
@ -6544,7 +6543,6 @@ static void s390x_tr_init_disas_context(DisasContextBase *dcbase, CPUState *cs)
dc->cc_op = CC_OP_DYNAMIC;
dc->ex_value = dc->base.tb->cs_base;
dc->do_debug = dc->base.singlestep_enabled;
}
static void s390x_tr_tb_start(DisasContextBase *db, CPUState *cs)
@ -6596,10 +6594,8 @@ static void s390x_tr_tb_stop(DisasContextBase *dcbase, CPUState *cs)
/* FALLTHRU */
case DISAS_PC_CC_UPDATED:
/* Exit the TB, either by raising a debug exception or by return. */
if (dc->do_debug) {
gen_exception(EXCP_DEBUG);
} else if ((dc->base.tb->flags & FLAG_MASK_PER) ||
dc->base.is_jmp == DISAS_PC_STALE_NOCHAIN) {
if ((dc->base.tb->flags & FLAG_MASK_PER) ||
dc->base.is_jmp == DISAS_PC_STALE_NOCHAIN) {
tcg_gen_exit_tb(NULL, 0);
} else {
tcg_gen_lookup_and_goto_ptr();