From 0e971b0e3f4b9c99a7ce67b10d851fc885c188d5 Mon Sep 17 00:00:00 2001 From: Rich Felker Date: Sat, 22 Nov 2014 21:06:40 -0500 Subject: [PATCH] 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)); } -- 2.25.1