target/i386: fix incorrect EIP in PC-relative translation blocks

The PCREL patches introduced a bug when updating EIP in the !CF_PCREL case.
Using s->pc in func gen_update_eip_next() solves the problem.

Cc: qemu-stable@nongnu.org
Fixes: b5e0d5d22fbf ("target/i386: Fix 32-bit wrapping of pc/eip computation")
Fixes: 5b2fd6cf3735 (b5e0d5d22fbf in 8.1.4)
Signed-off-by: guoguangyao <guoguangyao18@mails.ucas.ac.cn>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-ID: <20240115020804.30272-1-guoguangyao18@mails.ucas.ac.cn>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
(cherry picked from commit 2926eab8969908bc068629e973062a0fb6ff3759)
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>

diff --git a/target/i386/tcg/translate.c b/target/i386/tcg/translate.c
index 1d3c9a8be4296de8991fa78c9b3b85861604941f..2a9f277adbcac794df6d68a1c897b8194e8c3d2a 100644 (file)
--- a/target/i386/tcg/translate.c
+++ b/target/i386/tcg/translate.c
@@ -566,9 +566,9 @@ static void gen_update_eip_next(DisasContext *s)
     if (tb_cflags(s->base.tb) & CF_PCREL) {
         tcg_gen_addi_tl(cpu_eip, cpu_eip, s->pc - s->pc_save);
     } else if (CODE64(s)) {
-        tcg_gen_movi_tl(cpu_eip, s->base.pc_next);
+        tcg_gen_movi_tl(cpu_eip, s->pc);
     } else {
-        tcg_gen_movi_tl(cpu_eip, (uint32_t)(s->base.pc_next - s->cs_base));
+        tcg_gen_movi_tl(cpu_eip, (uint32_t)(s->pc - s->cs_base));
     }
     s->pc_save = s->pc;
 }