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Use mprotect instead of mmap

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This commit is contained in:
Tatsuyuki Ishi 2018-03-28 18:47:16 +09:00
parent d39b02c2c9
commit 8ecbec1dba
1 changed files with 2 additions and 3 deletions
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5
src/libstd/sys/unix/thread.rs
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@ -355,10 +355,9 @@ pub mod guard {
// macOS. Instead, just restore the page to a writable state.
// This ain't Linux, so we probably don't need to care about
// execstack.
let result = mmap(stackaddr, PAGE_SIZE, PROT_READ | PROT_WRITE,
MAP_PRIVATE | MAP_ANON | MAP_FIXED, -1, 0);
let result = mprotect(stackaddr, PAGE_SIZE, PROT_READ | PROT_WRITE);
if result != stackaddr || result == MAP_FAILED {
if result != 0 {
panic!("unable to reset the guard page");
}
}