Kernel: Implement thread start trampoline for userspace

This is needed on i686 to set segment registers.
2024-04-03 00:42:39 +03:00
parent 4d70322eab
commit fe386fa819
4 changed files with 49 additions and 12 deletions
--- a/libc/arch/x86_64/crt0.S
+++ b/libc/arch/x86_64/crt0.S
@@ -2,6 +2,11 @@

 .global _start
 _start:
+	pushq $0
+	pushq %rdi
+	pushq %rsi
+	pushq %rdx
+
 	# STACK LAYOUT
 	#   null
 	#   argc