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Diffstat (limited to 'arch/mips')
-rw-r--r--arch/mips/syscall_arch.h39
1 files changed, 33 insertions, 6 deletions
diff --git a/arch/mips/syscall_arch.h b/arch/mips/syscall_arch.h
index 01de67b8..3b33ce18 100644
--- a/arch/mips/syscall_arch.h
+++ b/arch/mips/syscall_arch.h
@@ -3,8 +3,6 @@
((union { long long ll; long l[2]; }){ .ll = x }).l[1]
#define __SYSCALL_LL_O(x) 0, __SYSCALL_LL_E((x))
-hidden long (__syscall)(long, ...);
-
#define SYSCALL_RLIM_INFINITY (-1UL/2)
#if _MIPSEL || __MIPSEL || __MIPSEL__
@@ -104,8 +102,22 @@ 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)
{
- long r2 = (__syscall)(n, a, b, c, d, e);
- if (r2 > -4096UL) return r2;
+ register long r4 __asm__("$4") = a;
+ register long r5 __asm__("$5") = b;
+ register long r6 __asm__("$6") = c;
+ register long r7 __asm__("$7") = d;
+ register long r8 __asm__("$8") = e;
+ register long r2 __asm__("$2");
+ __asm__ __volatile__ (
+ "subu $sp,$sp,32 ; sw $8,16($sp) ; "
+ "addu $2,$0,%3 ; syscall ;"
+ "addu $sp,$sp,32"
+ : "=&r"(r2), "=r"(r7), "+r"(r8)
+ : "ir"(n), "0"(r2), "1"(r7), "r"(r4), "r"(r5), "r"(r6)
+ : "$1", "$3", "$9", "$10", "$11", "$12", "$13",
+ "$14", "$15", "$24", "$25", "hi", "lo", "memory");
+ if (r7) return -r2;
+ long ret = r2;
if (n == SYS_stat64 || n == SYS_fstat64 || n == SYS_lstat64) __stat_fix(b);
if (n == SYS_fstatat64) __stat_fix(c);
return r2;
@@ -113,8 +125,23 @@ static inline long __syscall5(long n, long a, long b, long c, long d, long e)
static inline long __syscall6(long n, long a, long b, long c, long d, long e, long f)
{
- long r2 = (__syscall)(n, a, b, c, d, e, f);
- if (r2 > -4096UL) return r2;
+ register long r4 __asm__("$4") = a;
+ register long r5 __asm__("$5") = b;
+ register long r6 __asm__("$6") = c;
+ register long r7 __asm__("$7") = d;
+ register long r8 __asm__("$8") = e;
+ register long r9 __asm__("$9") = f;
+ register long r2 __asm__("$2");
+ __asm__ __volatile__ (
+ "subu $sp,$sp,32 ; sw $8,16($sp) ; sw $9,20($sp) ; "
+ "addu $2,$0,%4 ; syscall ;"
+ "addu $sp,$sp,32"
+ : "=&r"(r2), "=r"(r7), "+r"(r8), "+r"(r9)
+ : "ir"(n), "0"(r2), "1"(r7), "r"(r4), "r"(r5), "r"(r6)
+ : "$1", "$3", "$10", "$11", "$12", "$13",
+ "$14", "$15", "$24", "$25", "hi", "lo", "memory");
+ if (r7) return -r2;
+ long ret = r2;
if (n == SYS_stat64 || n == SYS_fstat64 || n == SYS_lstat64) __stat_fix(b);
if (n == SYS_fstatat64) __stat_fix(c);
return r2;