mirror of
git://git.musl-libc.org/musl
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77 lines
2.2 KiB
C
77 lines
2.2 KiB
C
#define __SYSCALL_LL_E(x) (x)
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#define __SYSCALL_LL_O(x) (x)
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#define __asm_syscall(ret, ...) do { \
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__asm__ __volatile__ ("svc 0\n" \
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: ret : __VA_ARGS__ : "memory"); \
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return r2; \
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} while (0)
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static inline long __syscall0(long n)
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{
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register long r1 __asm__("r1") = n;
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register long r2 __asm__("r2");
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__asm_syscall("=r"(r2), "r"(r1));
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}
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static inline long __syscall1(long n, long a)
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{
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register long r1 __asm__("r1") = n;
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register long r2 __asm__("r2") = a;
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__asm_syscall("+r"(r2), "r"(r1));
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}
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static inline long __syscall2(long n, long a, long b)
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{
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register long r1 __asm__("r1") = n;
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register long r2 __asm__("r2") = a;
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register long r3 __asm__("r3") = b;
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__asm_syscall("+r"(r2), "r"(r1), "r"(r3));
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}
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static inline long __syscall3(long n, long a, long b, long c)
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{
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register long r1 __asm__("r1") = n;
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register long r2 __asm__("r2") = a;
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register long r3 __asm__("r3") = b;
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register long r4 __asm__("r4") = c;
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__asm_syscall("+r"(r2), "r"(r1), "r"(r3), "r"(r4));
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}
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static inline long __syscall4(long n, long a, long b, long c, long d)
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{
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register long r1 __asm__("r1") = n;
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register long r2 __asm__("r2") = a;
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register long r3 __asm__("r3") = b;
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register long r4 __asm__("r4") = c;
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register long r5 __asm__("r5") = d;
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__asm_syscall("+r"(r2), "r"(r1), "r"(r3), "r"(r4), "r"(r5));
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}
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static inline long __syscall5(long n, long a, long b, long c, long d, long e)
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{
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register long r1 __asm__("r1") = n;
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register long r2 __asm__("r2") = a;
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register long r3 __asm__("r3") = b;
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register long r4 __asm__("r4") = c;
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register long r5 __asm__("r5") = d;
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register long r6 __asm__("r6") = e;
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__asm_syscall("+r"(r2), "r"(r1), "r"(r3), "r"(r4), "r"(r5), "r"(r6));
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}
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static inline long __syscall6(long n, long a, long b, long c, long d, long e, long f)
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{
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if (n == SYS_mmap) return __syscall1(n, (long)(long[]){a,b,c,d,e,f});
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register long r1 __asm__("r1") = n;
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register long r2 __asm__("r2") = a;
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register long r3 __asm__("r3") = b;
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register long r4 __asm__("r4") = c;
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register long r5 __asm__("r5") = d;
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register long r6 __asm__("r6") = e;
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register long r7 __asm__("r7") = f;
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__asm_syscall("+r"(r2), "r"(r1), "r"(r3), "r"(r4), "r"(r5), "r"(r6), "r"(r7));
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}
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#define SYSCALL_USE_SOCKETCALL
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