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Implement more security stuff

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- Support deterministic stacks on OpenBSD
- Support OpenBSD system call origin verification
- Fix overrun by one in chibicc string token allocator
- Get all chibicc tests passing under Address Sanitizer
This commit is contained in:
Justine Tunney 2021-02-02 20:21:06 -08:00
parent cbfd4ccd1e
commit c843243322
56 changed files with 376 additions and 245 deletions
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2
libc/calls/mprotect.greg.c
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@ -34,7 +34,7 @@ extern __msabi typeof(VirtualProtect) *const __imp_VirtualProtect;
* @return 0 on success, or -1 w/ errno
* @see mmap()
*/
int mprotect(void *addr, uint64_t len, int prot) {
textsyscall int mprotect(void *addr, uint64_t len, int prot) {
bool cf;
int64_t rc;
uint32_t oldprot;