[PULL 5/5] target/m68k: always call gen_exit_tb() after writes to SR

[Laurent Vivier <laurent@vivier.eu>]

From: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>

Any write to SR can change the security state so always call gen_exit_tb() when
this occurs. In particular MacOS makes use of andiw/oriw in a few places to
handle the switch between user and supervisor mode.

Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20220917112515.83905-5-mark.cave-ayland@ilande.co.uk>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
---
 target/m68k/translate.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/target/m68k/translate.c b/target/m68k/translate.c
index 0b618e8eb2bd..233b9d8e5783 100644
--- a/target/m68k/translate.c
+++ b/target/m68k/translate.c
@@ -2375,6 +2375,7 @@ DISAS_INSN(arith_im)
         tcg_gen_or_i32(dest, src1, im);
         if (with_SR) {
             gen_set_sr(s, dest, opsize == OS_BYTE);
+            gen_exit_tb(s);
         } else {
             DEST_EA(env, insn, opsize, dest, &addr);
             gen_logic_cc(s, dest, opsize);
@@ -2384,6 +2385,7 @@ DISAS_INSN(arith_im)
         tcg_gen_and_i32(dest, src1, im);
         if (with_SR) {
             gen_set_sr(s, dest, opsize == OS_BYTE);
+            gen_exit_tb(s);
         } else {
             DEST_EA(env, insn, opsize, dest, &addr);
             gen_logic_cc(s, dest, opsize);
@@ -2407,6 +2409,7 @@ DISAS_INSN(arith_im)
         tcg_gen_xor_i32(dest, src1, im);
         if (with_SR) {
             gen_set_sr(s, dest, opsize == OS_BYTE);
+            gen_exit_tb(s);
         } else {
             DEST_EA(env, insn, opsize, dest, &addr);
             gen_logic_cc(s, dest, opsize);
@@ -4614,6 +4617,7 @@ DISAS_INSN(strldsr)
     }
     gen_push(s, gen_get_sr(s));
     gen_set_sr_im(s, ext, 0);
+    gen_exit_tb(s);
 }
 
 DISAS_INSN(move_from_sr)
-- 
2.37.3