LibC: Set up a dummy first stack frame in _start

This ensures that we stop walking the stack at `_entry` and don't crash/panic when computing backtraces.
Author: https://github.com/BertalanD Commit: fb11645a9b Pull-request: https://github.com/SerenityOS/serenity/pull/19153 Reviewed-by: https://github.com/nico ✅
2025-09-27 19:59:03 +00:00 · 2023-05-30 15:22:59 +02:00 · 2023-05-30 15:22:59 +02:00 · fb11645a9b · 2024-07-17 07:14:09 +09:00
commit fb11645a9b
parent e77ce26ff1
1 changed files with 2 additions and 0 deletions
--- a/Userland/Libraries/LibC/crt0.cpp
+++ b/Userland/Libraries/LibC/crt0.cpp
@ -27,6 +27,8 @@ NAKED void _start(int, char**, char**)
 {
 #    if ARCH(AARCH64)
    asm(
+        "mov x29, 0\n"
+        "mov x30, 0\n"
        "bl _entry\n");
 #    else
    asm(