From: Philippe Mathieu-Daudé <[email protected]>
When building with GCC 10.2 configured with --extra-cflags=-Os, we get:
target/arm/m_helper.c: In function ‘arm_v7m_cpu_do_interrupt’:
target/arm/m_helper.c:1811:16: error: ‘restore_s16_s31’ may be used
uninitialized in this function [-Werror=maybe-uninitialized]
1811 | if (restore_s16_s31) {
| ^
target/arm/m_helper.c:1350:10: note: ‘restore_s16_s31’ was declared here
1350 | bool restore_s16_s31;
| ^~~~~~~~~~~~~~~
cc1: all warnings being treated as errors
Initialize the 'restore_s16_s31' variable to silence the warning.
Signed-off-by: Philippe Mathieu-Daudé <[email protected]>
Message-id: [email protected]
Reviewed-by: Peter Maydell <[email protected]>
Signed-off-by: Peter Maydell <[email protected]>
---
target/arm/m_helper.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/target/arm/m_helper.c b/target/arm/m_helper.c
index 61760030292..731c435c00b 100644
--- a/target/arm/m_helper.c
+++ b/target/arm/m_helper.c
@@ -1347,7 +1347,7 @@ static void do_v7m_exception_exit(ARMCPU *cpu)
bool exc_secure = false;
bool return_to_secure;
bool ftype;
- bool restore_s16_s31;
+ bool restore_s16_s31 = false;
/*
* If we're not in Handler mode then jumps to magic exception-exit
--
2.20.1
