Handler { _data: MAIN_ALTSTACK };
}
- unsafe fn get_stack() -> *mut i8 {
+ unsafe fn get_stackp() -> *mut libc::c_void {
let stackp = mmap(ptr::null_mut(),
SIGSTKSZ,
PROT_READ | PROT_WRITE,
if stackp == MAP_FAILED {
panic!("failed to allocate an alternative stack");
}
- stackp as *mut i8
+ stackp
+ }
+
+ #[cfg(any(target_os = "linux",
+ target_os = "macos",
+ target_os = "bitrig",
+ target_os = "netbsd",
+ target_os = "openbsd"))]
+ unsafe fn get_stack() -> libc::stack_t {
+ libc::stack_t { ss_sp: get_stackp(), ss_flags: 0, ss_size: SIGSTKSZ }
+ }
+
+ #[cfg(any(target_os = "freebsd",
+ target_os = "dragonfly"))]
+ unsafe fn get_stack() -> libc::stack_t {
+ libc::stack_t { ss_sp: get_stackp() as *mut i8, ss_flags: 0, ss_size: SIGSTKSZ }
}
pub unsafe fn make_handler() -> Handler {
- let stack = libc::stack_t { ss_sp: get_stack(), ss_flags: 0, ss_size: SIGSTKSZ }
+ let stack = get_stack();
sigaltstack(&stack, ptr::null_mut());
Handler { _data: stack.ss_sp as *mut libc::c_void }
}