From: Bingwu Zhang <[email protected]> Useful for debugging
Signed-off-by: Bingwu Zhang <[email protected]> --- tests/tcg/multiarch/test-mmap.c | 12 +++++++++--- 1 file changed, 9 insertions(+), 3 deletions(-) diff --git a/tests/tcg/multiarch/test-mmap.c b/tests/tcg/multiarch/test-mmap.c index e297f4b1e932..88f7a04101a3 100644 --- a/tests/tcg/multiarch/test-mmap.c +++ b/tests/tcg/multiarch/test-mmap.c @@ -442,19 +442,19 @@ void check_invalid_mmaps(void) /* Attempt to map a zero length page. */ addr = mmap(NULL, 0, PROT_READ, MAP_PRIVATE | MAP_ANONYMOUS, -1, 0); - fprintf(stdout, "%s addr=%p", __func__, (void *)addr); + fprintf(stdout, "%s addr=%p errno=%d\n", __func__, (void *)addr, errno); fail_unless(addr == MAP_FAILED); fail_unless(errno == EINVAL); /* Attempt to map a over length page. */ addr = mmap(NULL, -4, PROT_READ, MAP_PRIVATE | MAP_ANONYMOUS, -1, 0); - fprintf(stdout, "%s addr=%p", __func__, (void *)addr); + fprintf(stdout, "%s addr=%p errno=%d\n", __func__, (void *)addr, errno); fail_unless(addr == MAP_FAILED); fail_unless(errno == ENOMEM); /* Attempt to remap a region which exceeds the bounds of memory. */ addr = mremap((void *)((uintptr_t)pagesize * 10), SIZE_MAX & ~(size_t)pagemask, pagesize, 0); - fprintf(stdout, "%s mremap addr=%p", __func__, (void *)addr); + fprintf(stdout, "%s mremap addr=%p errno=%d\n", __func__, (void *)addr, errno); fail_unless(addr == MAP_FAILED); fail_unless(errno == EFAULT); @@ -465,8 +465,11 @@ void check_shrink_mmaps(void) { unsigned char *a, *b, *c; a = mmap(NULL, pagesize * 2, PROT_READ, MAP_PRIVATE | MAP_ANONYMOUS, -1, 0); + fprintf(stdout, "%s addr=%p errno=%d\n", __func__, (void *)a, errno); b = mmap(NULL, pagesize * 2, PROT_READ, MAP_PRIVATE | MAP_ANONYMOUS, -1, 0); + fprintf(stdout, "%s addr=%p errno=%d\n", __func__, (void *)b, errno); c = mmap(NULL, pagesize * 2, PROT_READ, MAP_PRIVATE | MAP_ANONYMOUS, -1, 0); + fprintf(stdout, "%s addr=%p errno=%d\n", __func__, (void *)c, errno); fail_unless(a != MAP_FAILED); fail_unless(b != MAP_FAILED); @@ -479,6 +482,7 @@ void check_shrink_mmaps(void) /* Shrink the middle mapping in-place; the others should be unaffected */ b = mremap(b, pagesize * 2, pagesize, 0); + fprintf(stdout, "%s mremap addr=%p errno=%d\n", __func__, (void *)b, errno); fail_unless(b != MAP_FAILED); /* Ensure we can still access all valid mappings */ @@ -489,6 +493,8 @@ void check_shrink_mmaps(void) munmap(a, 2 * pagesize); munmap(b, pagesize); munmap(c, 2 * pagesize); + + fprintf(stdout, " passed\n"); } int main(int argc, char **argv) -- 2.52.0
