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[PATCH] Set the correct env->fpip for x86 float instructions [cleaned]
From: |
Ziqiao Kong |
Subject: |
[PATCH] Set the correct env->fpip for x86 float instructions [cleaned] |
Date: |
Fri, 16 Apr 2021 23:34:31 +0800 |
Hello, everyone!
Sorry that I forgot the Signed-off-by line and put the duplicate link just now.
Please ignore my previous emails.
This patch follows
https://lists.gnu.org/archive/html/qemu-devel/2010-11/msg02497.html and
https://lists.nongnu.org/archive/html/qemu-devel/2021-04/msg00307.html
Sorry again for any inconvenience.
Signed-off-by: Ziqiao Kong <ziqiaokong@gmail.com>
---
target/i386/tcg/fpu_helper.c | 4 ++--
target/i386/tcg/translate.c | 3 +++
2 files changed, 5 insertions(+), 2 deletions(-)
diff --git a/target/i386/tcg/fpu_helper.c b/target/i386/tcg/fpu_helper.c
index 60ed93520a..e8cbde4e1a 100644
--- a/target/i386/tcg/fpu_helper.c
+++ b/target/i386/tcg/fpu_helper.c
@@ -2395,7 +2395,7 @@ static void do_fstenv(CPUX86State *env, target_ulong ptr,
int data32,
cpu_stl_data_ra(env, ptr, env->fpuc, retaddr);
cpu_stl_data_ra(env, ptr + 4, fpus, retaddr);
cpu_stl_data_ra(env, ptr + 8, fptag, retaddr);
- cpu_stl_data_ra(env, ptr + 12, 0, retaddr); /* fpip */
+ cpu_stl_data_ra(env, ptr + 12, env->fpip, retaddr); /* fpip */
cpu_stl_data_ra(env, ptr + 16, 0, retaddr); /* fpcs */
cpu_stl_data_ra(env, ptr + 20, 0, retaddr); /* fpoo */
cpu_stl_data_ra(env, ptr + 24, 0, retaddr); /* fpos */
@@ -2404,7 +2404,7 @@ static void do_fstenv(CPUX86State *env, target_ulong ptr,
int data32,
cpu_stw_data_ra(env, ptr, env->fpuc, retaddr);
cpu_stw_data_ra(env, ptr + 2, fpus, retaddr);
cpu_stw_data_ra(env, ptr + 4, fptag, retaddr);
- cpu_stw_data_ra(env, ptr + 6, 0, retaddr);
+ cpu_stw_data_ra(env, ptr + 6, env->fpip, retaddr);
cpu_stw_data_ra(env, ptr + 8, 0, retaddr);
cpu_stw_data_ra(env, ptr + 10, 0, retaddr);
cpu_stw_data_ra(env, ptr + 12, 0, retaddr);
diff --git a/target/i386/tcg/translate.c b/target/i386/tcg/translate.c
index 880bc45561..cc4398f03b 100644
--- a/target/i386/tcg/translate.c
+++ b/target/i386/tcg/translate.c
@@ -6337,7 +6337,10 @@ static target_ulong disas_insn(DisasContext *s, CPUState
*cpu)
goto unknown_op;
}
}
+ tcg_gen_movi_tl(s->tmp0, pc_start - s->cs_base);
+ tcg_gen_st_tl(s->tmp0, cpu_env, offsetof(CPUX86State, fpip));
break;
+
/************************/
/* string ops */
--
2.25.1
- [PATCH] Set the correct env->fpip for x86 float instructions [cleaned],
Ziqiao Kong <=