github/reth
1
1
Fork 0
mirror of https://github.com/paradigmxyz/reth.git synced 2026-02-19 03:04:27 -05:00
Code Issues Packages Projects Releases Wiki Activity

fix: sigsegv handler (#21231)

Browse Source 
Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>
This commit is contained in:
Sergei Shulepov
2026-01-21 09:42:36 +00:00
committed by GitHub
parent 37b5db0d47
commit 2cae438642
1 changed files with 10 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files

11
crates/cli/util/src/sigsegv_handler.rs
View File

@@ -121,7 +121,16 @@ pub fn install() {
unsafe {
let alt_stack_size: usize = min_sigstack_size() + 64 * 1024;
let mut alt_stack: libc::stack_t = mem::zeroed();
alt_stack.ss_sp = alloc(Layout::from_size_align(alt_stack_size, 1).unwrap()).cast();
// Both SysV AMD64 ABI and aarch64 ABI require 16 bytes alignment. We are going to be
// generous here and just use a size of a page.
let raw_page_sz = libc::sysconf(libc::_SC_PAGESIZE);
let page_sz = if raw_page_sz == -1 {
// Fallback alignment in case sysconf fails.
4096_usize
} else {
raw_page_sz as usize
};
alt_stack.ss_sp = alloc(Layout::from_size_align(alt_stack_size, page_sz).unwrap()).cast();
alt_stack.ss_size = alt_stack_size;
libc::sigaltstack(&raw const alt_stack, ptr::null_mut());