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Add volatile to asm statement in intr_get_level(),
[pintos-anon]
/
src
/
threads
/
interrupt.c
diff --git
a/src/threads/interrupt.c
b/src/threads/interrupt.c
index 8e7d575afe7928ac5f22c57c11719e2107dcae50..3637b0013edd9c92f347f23f60e230ec00efcfbc 100644
(file)
--- a/
src/threads/interrupt.c
+++ b/
src/threads/interrupt.c
@@
-51,7
+51,7
@@
intr_get_level (void)
{
uint32_t flags;
- asm ("pushfl; popl %0" : "=g" (flags));
+ asm
volatile
("pushfl; popl %0" : "=g" (flags));
return flags & FLAG_IF ? INTR_ON : INTR_OFF;
}