[Top][All Lists]
[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
[Qemu-devel] [PATCH] declare saved_env_reg as volatile
From: |
Paolo Bonzini |
Subject: |
[Qemu-devel] [PATCH] declare saved_env_reg as volatile |
Date: |
Tue, 23 Feb 2010 19:21:00 +0100 |
This ensures that the compiler does not move it away from
the "env = env1;" assignment. Fixes a miscompilation
on gcc 4.4, reported by Jay Foad.
Cc: <address@hidden>
Signed-off-by: Paolo Bonzini <address@hidden>
---
cpu-exec.c | 2 +-
1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/cpu-exec.c b/cpu-exec.c
index 51aa416..8721684 100644
--- a/cpu-exec.c
+++ b/cpu-exec.c
@@ -215,7 +215,7 @@ static void cpu_handle_debug_exception(CPUState *env)
int cpu_exec(CPUState *env1)
{
- host_reg_t saved_env_reg;
+ volatile host_reg_t saved_env_reg;
int ret, interrupt_request;
TranslationBlock *tb;
uint8_t *tc_ptr;
--
1.6.6