qemu/tests/tcg/multiarch/linux/test-vma.c
Alex Bennée 33629b82ae tests/tcg: mark test-vma as a linux-only test
The main multiarch tests should compile for any POSIX system, however
test-vma's usage of MAP_NORESERVE makes it a linux-only test. Simply
moving the source file is enough for the build logic to skip on BSD's.

Reviewed-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20250304222439.2035603-14-alex.bennee@linaro.org>
2025-03-10 10:30:00 +00:00

22 lines
557 B
C

/*
* Test very large vma allocations.
* The qemu out-of-memory condition was within the mmap syscall itself.
* If the syscall actually returns with MAP_FAILED, the test succeeded.
*/
#include <sys/mman.h>
int main()
{
int n = sizeof(size_t) == 4 ? 32 : 45;
for (int i = 28; i < n; i++) {
size_t l = (size_t)1 << i;
void *p = mmap(0, l, PROT_NONE,
MAP_PRIVATE | MAP_ANONYMOUS | MAP_NORESERVE, -1, 0);
if (p == MAP_FAILED) {
break;
}
munmap(p, l);
}
return 0;
}