diff options
| -rw-r--r-- | tests/test-i386.c | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/tests/test-i386.c b/tests/test-i386.c index 30923238ab..2411869569 100644 --- a/tests/test-i386.c +++ b/tests/test-i386.c @@ -6,6 +6,7 @@ #include <math.h> #include <signal.h> #include <setjmp.h> +#include <errno.h> #include <sys/ucontext.h> #include <sys/mman.h> #include <asm/vm86.h> @@ -855,7 +856,6 @@ void test_segs(void) #endif /* do some tests with fs or gs */ asm volatile ("movl %0, %%fs" : : "r" (MK_SEL(1))); - asm volatile ("movl %0, %%gs" : : "r" (MK_SEL(2))); seg_data1[1] = 0xaa; seg_data2[1] = 0x55; @@ -863,7 +863,12 @@ void test_segs(void) asm volatile ("fs movzbl 0x1, %0" : "=r" (res)); printf("FS[1] = %02x\n", res); - asm volatile ("gs movzbl 0x1, %0" : "=r" (res)); + asm volatile ("pushl %%gs\n" + "movl %1, %%gs\n" + "gs movzbl 0x1, %0\n" + "popl %%gs\n" + : "=r" (res) + : "r" (MK_SEL(2))); printf("GS[1] = %02x\n", res); /* tests with ds/ss (implicit segment case) */ |