From 2d8d4fd2007943ce34279a82b33b7eca261cc448 Mon Sep 17 00:00:00 2001
From: "Justin C. Miller" <justin@devjustinian.com>
Date: Sun, 9 Apr 2023 15:20:17 -0700
Subject: [PATCH] [libc] Fix random SSE alignment GP faults

The libc CRT _start function had a stray pop left in it, which was
causing the stack to never be 16-byte aligned and thus causing crashes
when SSE instructions were called.
---
 src/libraries/libc/arch/amd64/crt/crt0.s | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/libraries/libc/arch/amd64/crt/crt0.s b/src/libraries/libc/arch/amd64/crt/crt0.s
index 5e4034a..2577e99 100644
--- a/src/libraries/libc/arch/amd64/crt/crt0.s
+++ b/src/libraries/libc/arch/amd64/crt/crt0.s
@@ -17,7 +17,7 @@ _libc_crt0_start:
 
     call __init_libc
 
-    pop rdi
+    mov rdi, 0
     mov rsi, rsp
     mov rdx, 0    ; TODO: actually parse stack for argc, argv, envp
     mov rcx, rbx