openkylin
/
qemu
mirror of https://gitee.com/openkylin/qemu.git
9
0
Fork 0
Code Issues Projects Releases Wiki Activity

target/m68k: call gen_raise_exception() directly if single-stepping in gen_jmp_tb() 

In order to consolidate the single-step exception handling into a single
helper, change gen_jmp_tb() so that it calls gen_raise_exception() directly
instead of gen_exception(). This ensures that all single-step exceptions are
now handled directly by gen_raise_exception().

Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20210519142917.16693-3-mark.cave-ayland@ilande.co.uk>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
This commit is contained in:
Mark Cave-Ayland 2021-05-19 15:29:15 +01:00 committed by Laurent Vivier
parent f334bb2562
commit 4f2b21efb3
1 changed files with 3 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
target/m68k/translate.c
View File

@ -1518,7 +1518,9 @@ static inline bool use_goto_tb(DisasContext *s, uint32_t dest)
static void gen_jmp_tb(DisasContext *s, int n, uint32_t dest)
{
if (unlikely(is_singlestepping(s))) {
gen_exception(s, dest, EXCP_DEBUG);
update_cc_op(s);
tcg_gen_movi_i32(QREG_PC, dest);
gen_raise_exception(EXCP_DEBUG);
} else if (use_goto_tb(s, dest)) {
tcg_gen_goto_tb(n);
tcg_gen_movi_i32(QREG_PC, dest);