diff options
Diffstat (limited to 'arch/mips')
| -rw-r--r-- | arch/mips/syscall_arch.h | 39 |
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; |