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Diffstat (limited to 'arch/mips64/syscall_arch.h')
-rw-r--r--arch/mips64/syscall_arch.h66
1 files changed, 43 insertions, 23 deletions
diff --git a/arch/mips64/syscall_arch.h b/arch/mips64/syscall_arch.h
index 28d0f934..99eebc32 100644
--- a/arch/mips64/syscall_arch.h
+++ b/arch/mips64/syscall_arch.h
@@ -1,9 +1,6 @@
#define __SYSCALL_LL_E(x) (x)
#define __SYSCALL_LL_O(x) (x)
-__attribute__((visibility("hidden")))
-long (__syscall)(long, ...);
-
#define SYSCALL_RLIM_INFINITY (-1UL/2)
#include <sys/stat.h>
@@ -167,48 +164,71 @@ 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;
- long old_b = b;
- long old_c = c;
struct kernel_stat kst;
+ long ret;
+ 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");
if (n == SYS_stat || n == SYS_fstat || n == SYS_lstat)
- b = (long) &kst;
+ r5 = (long) &kst;
if (n == SYS_newfstatat)
- c = (long) &kst;
+ r6 = (long) &kst;
- r2 = (__syscall)(n, a, b, c, d, e);
- if (r2 > -4096UL) return r2;
+ __asm__ __volatile__ (
+ "daddu $2,$0,%2 ; syscall"
+ : "=&r"(r2), "=r"(r7) : "ir"(n), "0"(r2), "1"(r7),
+ "r"(r4), "r"(r5), "r"(r6), "r"(r8)
+ : "$1", "$3", "$9", "$10", "$11", "$12", "$13",
+ "$14", "$15", "$24", "$25", "hi", "lo", "memory");
+
+ if (r7) return -r2;
+ ret = r2;
if (n == SYS_stat || n == SYS_fstat || n == SYS_lstat)
- __stat_fix(&kst, (struct stat *)old_b);
+ __stat_fix(&kst, (struct stat *)b);
if (n == SYS_newfstatat)
- __stat_fix(&kst, (struct stat *)old_c);
+ __stat_fix(&kst, (struct stat *)c);
- return r2;
+ return ret;
}
static inline long __syscall6(long n, long a, long b, long c, long d, long e, long f)
{
- long r2;
- long old_b = b;
- long old_c = c;
struct kernel_stat kst;
+ long ret;
+ 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");
if (n == SYS_stat || n == SYS_fstat || n == SYS_lstat)
- b = (long) &kst;
+ r5 = (long) &kst;
if (n == SYS_newfstatat)
- c = (long) &kst;
+ r6 = (long) &kst;
+
+ __asm__ __volatile__ (
+ "daddu $2,$0,%2 ; syscall"
+ : "=&r"(r2), "=r"(r7) : "ir"(n), "0"(r2), "1"(r7),
+ "r"(r4), "r"(r5), "r"(r6), "r"(r8), "r"(r9)
+ : "$1", "$3", "$10", "$11", "$12", "$13",
+ "$14", "$15", "$24", "$25", "hi", "lo", "memory");
- r2 = (__syscall)(n, a, b, c, d, e, f);
- if (r2 > -4096UL) return r2;
+ if (r7) return -r2;
+ ret = r2;
if (n == SYS_stat || n == SYS_fstat || n == SYS_lstat)
- __stat_fix(&kst, (struct stat *)old_b);
+ __stat_fix(&kst, (struct stat *)b);
if (n == SYS_newfstatat)
- __stat_fix(&kst, (struct stat *)old_c);
+ __stat_fix(&kst, (struct stat *)c);
- return r2;
+ return ret;
}
#define VDSO_USEFUL