From 0e971b0e3f4b9c99a7ce67b10d851fc885c188d5 Mon Sep 17 00:00:00 2001
From: Rich Felker <dalias@aerifal.cx>
Date: Sat, 22 Nov 2014 21:06:40 -0500
Subject: inline 5- and 6-argument syscalls on arm
---
arch/arm/syscall_arch.h | 17 +++++++++++++++--
1 file changed, 15 insertions(+), 2 deletions(-)
diff --git a/arch/arm/syscall_arch.h b/arch/arm/syscall_arch.h
index 845f2e4d..c1c94666 100644
--- a/arch/arm/syscall_arch.h
+++ b/arch/arm/syscall_arch.h
@@ -54,10 +54,23 @@ static inline long __syscall4(long n, long a, long b, long c, long d)
static inline long __syscall5(long n, long a, long b, long c, long d, long e)
{
- return (__syscall)(n, a, b, c, d, e);
+ register long r7 __asm__("r7") = n;
+ register long r0 __asm__("r0") = a;
+ register long r1 __asm__("r1") = b;
+ register long r2 __asm__("r2") = c;
+ register long r3 __asm__("r3") = d;
+ register long r4 __asm__("r4") = e;
+ __asm_syscall("r"(r7), "0"(r0), "r"(r1), "r"(r2), "r"(r3), "r"(r4));
}
static inline long __syscall6(long n, long a, long b, long c, long d, long e, long f)
{
- return (__syscall)(n, a, b, c, d, e, f);
+ register long r7 __asm__("r7") = n;
+ register long r0 __asm__("r0") = a;
+ register long r1 __asm__("r1") = b;
+ register long r2 __asm__("r2") = c;
+ register long r3 __asm__("r3") = d;
+ register long r4 __asm__("r4") = e;
+ register long r5 __asm__("r5") = f;
+ __asm_syscall("r"(r7), "0"(r0), "r"(r1), "r"(r2), "r"(r3), "r"(r4), "r"(r5));
}
--
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