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Add WSL to test fleet

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All tests pass now under WSL2. They should pass under WSL1 too, but only
WSL2 is integrated into the test fleet right now. This change also fills
in some gaps in the error numbers.

Fixes #665
This commit is contained in:
Justine Tunney 2022-11-02 06:49:42 -07:00
parent fae0c0286f
commit 14d036b68d
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GPG key ID: BE714B4575D6E328
43 changed files with 2867 additions and 214 deletions
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35
libc/intrin/__is_wsl.c → libc/intrin/iswsl.c
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@ -16,34 +16,31 @@
│ TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR │
│ PERFORMANCE OF THIS SOFTWARE. │
╚─────────────────────────────────────────────────────────────────────────────*/
#include "libc/assert.h"
#include "libc/calls/calls.h"
#include "libc/calls/syscall-sysv.internal.h"
#include "libc/dce.h"
#include "libc/errno.h"
#include "libc/runtime/internal.h"
#include "libc/intrin/likely.h"
#include "libc/sysv/consts/map.h"
#include "libc/sysv/consts/prot.h"
#define MAP_GROWSDOWN_linux 0x00000100
#define MAP_ANONYMOUS_linux 0x00000020
#define GROWSDOWN 0x00000100
#define ANONYMOUS 0x00000020
/**
* Returns true if host platform is WSL.
* Returns true if host platform is WSL 1.0.
*/
bool __is_wsl(void) {
int e;
void *p;
bool res;
if (!IsLinux()) return false;
e = errno;
p = __sys_mmap(0, 4096, PROT_READ | PROT_WRITE,
MAP_PRIVATE | MAP_ANONYMOUS_linux | MAP_GROWSDOWN_linux, -1, 0,
0);
if (p != MAP_FAILED) {
__sys_munmap(p, 4096);
return false;
}
res = errno == ENOTSUP;
bool IsWsl1(void) {
static char res;
if (res) return res & 1;
if (!IsLinux()) return res = 2, false;
int e = errno;
_unassert(__sys_mmap((void *)1, 4096, PROT_READ | PROT_WRITE,
MAP_FIXED | MAP_PRIVATE | ANONYMOUS | GROWSDOWN, -1, 0,
0) == MAP_FAILED);
bool tmp = errno == ENOTSUP;
errno = e;
return res;
res = 2 | tmp;
return tmp;
}