From edb62049bc2b28a6d6d1dd5f56c1f8d777f3b0ca Mon Sep 17 00:00:00 2001
From: comex
Date: Tue, 24 Feb 2015 20:48:40 -0500
Subject: fix armv7 syscall registers :o

---
 lib/darwin/manual-syscall.h | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

(limited to 'lib')

diff --git a/lib/darwin/manual-syscall.h b/lib/darwin/manual-syscall.h
index f16ec54..9966981 100644
--- a/lib/darwin/manual-syscall.h
+++ b/lib/darwin/manual-syscall.h
@@ -35,11 +35,16 @@
 #ifdef __thumb__
 #undef GEN_SYSCALL_PRE
 #define GEN_SYSCALL_PRE(name) \
-    ".thumb_func _manual_" #name "\n"
+    ".thumb_func _manual_" #name "\n" \
+    ".align 2\n"
 #endif
 #define GEN_SYSCALL_INNER() \
+    "mov r12, sp\n" \
+    "push {r4-r6}\n" \
+    "ldm r12, {r4-r6}\n" \
     "mov r12, #num\n" \
     "svc #0x80\n" \
+    "pop {r4-r6}\n" \
     "bx lr\n"
 #elif defined(__arm64__)
 #define GEN_SYSCALL_INNER() \
-- 
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