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| author | Rain <rain@sunshowers.io> | 2024-09-09 06:48:56 +0000 |
|---|---|---|
| committer | Rain <rain@sunshowers.io> | 2024-09-09 07:00:05 +0000 |
| commit | 54672ac392e3a4af640f59db01e93200b96c97d5 (patch) | |
| tree | dd361c8d4a86ac6c31767e043eba5d9edd3cfe6c /library/std/src | |
| parent | 085744b7ad8b227239bcee0a44cd78dcd0310ab9 (diff) | |
| download | rust-54672ac392e3a4af640f59db01e93200b96c97d5.tar.gz rust-54672ac392e3a4af640f59db01e93200b96c97d5.zip | |
[illumos] enable SIGSEGV handler to detect stack overflows
Use the same code as Solaris. I couldn't find any tests regarding this, but I did test a stage0 build against my stack-exhaust-test binary [1]. Before: ``` running with use_stacker = No, new_thread = false, make_large_local = false zsh: segmentation fault (core dumped) cargo run ``` After: ``` running with use_stacker = No, new_thread = false, make_large_local = false thread 'main' has overflowed its stack fatal runtime error: stack overflow zsh: IOT instruction (core dumped) cargo +stage0 run ``` Fixes #128568. [1] https://github.com/sunshowers/stack-exhaust-test/
Diffstat (limited to 'library/std/src')
| -rw-r--r-- | library/std/src/sys/pal/unix/stack_overflow.rs | 15 |
1 files changed, 11 insertions, 4 deletions
diff --git a/library/std/src/sys/pal/unix/stack_overflow.rs b/library/std/src/sys/pal/unix/stack_overflow.rs index 9ff44b54c41..728ce8d60f6 100644 --- a/library/std/src/sys/pal/unix/stack_overflow.rs +++ b/library/std/src/sys/pal/unix/stack_overflow.rs @@ -32,7 +32,8 @@ impl Drop for Handler { target_os = "macos", target_os = "netbsd", target_os = "openbsd", - target_os = "solaris" + target_os = "solaris", + target_os = "illumos", ))] mod imp { #[cfg(not(all(target_os = "linux", target_env = "gnu")))] @@ -280,7 +281,7 @@ mod imp { libc::SIGSTKSZ } - #[cfg(target_os = "solaris")] + #[cfg(any(target_os = "solaris", target_os = "illumos"))] unsafe fn get_stack_start() -> Option<*mut libc::c_void> { let mut current_stack: libc::stack_t = crate::mem::zeroed(); assert_eq!(libc::stack_getbounds(&mut current_stack), 0); @@ -486,7 +487,12 @@ mod imp { Some(guardaddr..guardaddr + page_size) } - #[cfg(any(target_os = "macos", target_os = "openbsd", target_os = "solaris"))] + #[cfg(any( + target_os = "macos", + target_os = "openbsd", + target_os = "solaris", + target_os = "illumos", + ))] // FIXME: I am probably not unsafe. unsafe fn current_guard() -> Option<Range<usize>> { let stackptr = get_stack_start()?; @@ -569,7 +575,8 @@ mod imp { target_os = "macos", target_os = "netbsd", target_os = "openbsd", - target_os = "solaris" + target_os = "solaris", + target_os = "illumos", )))] mod imp { pub unsafe fn init() {} |