From 912d2e3c7eb1baa71dda2c0a28aa5809eaa96f27 Mon Sep 17 00:00:00 2001
From: dzwdz
Date: Sat, 16 Jul 2022 13:33:00 +0200
Subject: amd64: barely boot into kernel code

---
 src/kernel/arch/amd64/32/farjump.s | 8 ++++++++
 1 file changed, 8 insertions(+)
 create mode 100644 src/kernel/arch/amd64/32/farjump.s

(limited to 'src/kernel/arch/amd64/32/farjump.s')

diff --git a/src/kernel/arch/amd64/32/farjump.s b/src/kernel/arch/amd64/32/farjump.s
new file mode 100644
index 0000000..2885d2b
--- /dev/null
+++ b/src/kernel/arch/amd64/32/farjump.s
@@ -0,0 +1,8 @@
+.section .text
+.global gdt_farjump
+.type gdt_farjump, @function
+gdt_farjump:
+	/* retf pops off the return address and code segment off the stack.
+	 * it turns out that in the i386 cdecl calling convention they're in
+	 * the correct place already. */
+	retf
-- 
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