Kernel: Fix yield stack pointer value

Stack pointer was pointing to value of return address on return instead of past it. This did not affect anything as ig Processor::yield() didn't use stack after calling the trampoline
2026-01-19 00:47:00 +02:00
parent 5d62fa3f10
commit a08b9b82a6
2 changed files with 4 additions and 4 deletions
--- a/kernel/arch/x86_64/Yield.S
+++ b/kernel/arch/x86_64/Yield.S
@@ -1,10 +1,10 @@
 .global asm_yield_trampoline
 asm_yield_trampoline:
-	movq %rsp, %rcx
+	leaq 8(%rsp), %rcx
 	movq %rdi, %rsp

 	subq $8, %rsp
-	pushq (%rcx)
+	pushq -8(%rcx)
 	pushq %rcx
 	pushq %rax
 	pushq %rbx