diff options
Diffstat (limited to 'arch/mips')
| -rw-r--r-- | arch/mips/syscall_arch.h | 57 |
1 files changed, 57 insertions, 0 deletions
diff --git a/arch/mips/syscall_arch.h b/arch/mips/syscall_arch.h index 68e8dce3..f3df2dcd 100644 --- a/arch/mips/syscall_arch.h +++ b/arch/mips/syscall_arch.h @@ -5,6 +5,61 @@ #define __SYSCALL_SSLEN 16 +#ifndef __clang__ + +#define __asm_syscall(...) do { \ + register long r2 __asm__("$2"); \ + register long r7 __asm__("$7"); \ + __asm__ __volatile__ ( \ + "move $2,%2 ; syscall" \ + : "=&r"(r2), "=r"(r7) : __VA_ARGS__ \ + : "$1", "$3", "$8", "$9", "$10", "$11", "$12", "$13", \ + "$14", "$15", "$24", "hi", "lo", "memory"); \ + return r7 ? -r2 : r2; \ + } while (0) + +static inline long __syscall0(long n) +{ + register long r25 __asm__("$25") = n; + __asm_syscall("r"(r25)); +} + +static inline long __syscall1(long n, long a) +{ + register long r25 __asm__("$25") = n; + register long r4 __asm__("$4") = a; + __asm_syscall("r"(r25), "r"(r4)); +} + +static inline long __syscall2(long n, long a, long b) +{ + register long r25 __asm__("$25") = n; + register long r4 __asm__("$4") = a; + register long r5 __asm__("$5") = b; + __asm_syscall("r"(r25), "r"(r4), "r"(r5)); +} + +static inline long __syscall3(long n, long a, long b, long c) +{ + register long r25 __asm__("$25") = n; + register long r4 __asm__("$4") = a; + register long r5 __asm__("$5") = b; + register long r6 __asm__("$6") = c; + __asm_syscall("r"(r25), "r"(r4), "r"(r5), "r"(r6)); +} + +static inline long __syscall4(long n, long a, long b, long c, long d) +{ + register long r25 __asm__("$25") = n; + register long r4 __asm__("$4") = a; + register long r5 __asm__("$5") = b; + register long r6 __asm__("$6") = c; + register long r7 __asm__("$7") = d; + __asm_syscall("r"(r25), "r"(r4), "r"(r5), "r"(r6), "r"(r7)); +} + +#else + static inline long __syscall0(long n) { return (__syscall)(n); @@ -30,6 +85,8 @@ static inline long __syscall4(long n, long a, long b, long c, long d) return (__syscall)(n, a, b, c, d); } +#endif + static inline long __syscall5(long n, long a, long b, long c, long d, long e) { return (__syscall)(n, a, b, c, d, e); |