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Strengthen the pledge() polyfill

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This commit is contained in:
Justine Tunney 2022-06-27 13:01:58 -07:00
parent a6f65eea7c
commit 3c92adfd6e
79 changed files with 1457 additions and 357 deletions
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1
libc/runtime/clone-linux.S
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@ -17,6 +17,7 @@
│ PERFORMANCE OF THIS SOFTWARE. │
╚─────────────────────────────────────────────────────────────────────────────*/
#include "libc/macros.internal.h"
.privileged
// Invokes clone() system call on GNU/Systemd.
//

1
libc/runtime/runtime.h
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@ -34,6 +34,7 @@ extern unsigned char _ereal[]; /* αpε */
extern unsigned char __privileged_start[]; /* αpε */
extern unsigned char __privileged_addr[]; /* αpε */
extern unsigned char __privileged_size[]; /* αpε */
extern unsigned char __privileged_end[]; /* αpε */
extern unsigned char __test_start[]; /* αpε */
extern unsigned char __ro[]; /* αpε */
extern unsigned char *__relo_start[]; /* αpε */

4
libc/runtime/stackuse.c
View file

@ -74,6 +74,10 @@ static textexit void LogStackUse(void) {
}
static textstartup void LogStackUseInit(void) {
if (IsOpenbsd()) {
// avoid pledge() dependency on wpath
return;
}
if (IsTiny()) return;
if (isdirectory("o/" MODE) &&
getcwd(stacklog, sizeof(stacklog) - strlen("/o/" MODE "/stack.log"))) {