From db16393fd7f8c77151733be1abaf804d2b140425 Mon Sep 17 00:00:00 2001
From: 4lDO2 <4lDO2@protonmail.com>
Date: Fri, 22 Jul 2022 17:25:44 +0200
Subject: [PATCH] Manually init FPU context in pte_clone.
---
src/platform/redox/clone.rs | 10 +++++++++-
1 file changed, 9 insertions(+), 1 deletion(-)
diff --git a/src/platform/redox/clone.rs b/src/platform/redox/clone.rs
index 62e2385d..ee2c8c8c 100644
--- a/src/platform/redox/clone.rs
+++ b/src/platform/redox/clone.rs
@@ -296,7 +296,6 @@ fork_ret:
.globl pte_clone_ret
.type pte_clone_ret, @function
pte_clone_ret:
-
# Load registers
pop rax
pop rdi
@@ -306,6 +305,15 @@ pte_clone_ret:
pop r8
pop r9
+ sub rsp, 8
+
+ mov DWORD PTR [rsp], 0x00001F80
+ ldmxcsr [rsp]
+ mov WORD PTR [rsp], 0x031F
+ fldcw [rsp]
+
+ add rsp, 8
+
# Call entry point
call rax
--
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