mirror of
git://git.musl-libc.org/musl
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208eb584ef
now public syscall.h only exposes __NR_* and SYS_* constants and the variadic syscall function. no macros or inline functions, no __syscall_ret or other internal details, no 16-/32-bit legacy syscall renaming, etc. this logic has all been moved to src/internal/syscall.h with the arch-specific parts in arch/$(ARCH)/syscall_arch.h, and the amount of arch-specific stuff has been reduced to a minimum. changes still need to be reviewed/double-checked. minimal testing on i386 and mips has already been performed.
65 lines
1.8 KiB
C
65 lines
1.8 KiB
C
#define __SYSCALL_LL_E(x) (x)
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#define __SYSCALL_LL_O(x) (x)
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#define __SYSCALL_SSLEN 8
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static __inline long __syscall0(long n)
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{
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unsigned long ret;
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__asm__ __volatile__ ("syscall" : "=a"(ret) : "a"(n) : "rcx", "r11", "memory");
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return ret;
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}
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static __inline long __syscall1(long n, long a1)
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{
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unsigned long ret;
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__asm__ __volatile__ ("syscall" : "=a"(ret) : "a"(n), "D"(a1) : "rcx", "r11", "memory");
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return ret;
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}
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static __inline long __syscall2(long n, long a1, long a2)
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{
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unsigned long ret;
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__asm__ __volatile__ ("syscall" : "=a"(ret) : "a"(n), "D"(a1), "S"(a2)
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: "rcx", "r11", "memory");
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return ret;
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}
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static __inline long __syscall3(long n, long a1, long a2, long a3)
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{
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unsigned long ret;
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__asm__ __volatile__ ("syscall" : "=a"(ret) : "a"(n), "D"(a1), "S"(a2),
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"d"(a3) : "rcx", "r11", "memory");
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return ret;
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}
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static __inline long __syscall4(long n, long a1, long a2, long a3, long a4)
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{
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unsigned long ret;
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register long r10 __asm__("r10") = a4;
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__asm__ __volatile__ ("syscall" : "=a"(ret) : "a"(n), "D"(a1), "S"(a2),
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"d"(a3), "r"(r10): "rcx", "r11", "memory");
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return ret;
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}
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static __inline long __syscall5(long n, long a1, long a2, long a3, long a4, long a5)
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{
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unsigned long ret;
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register long r10 __asm__("r10") = a4;
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register long r8 __asm__("r8") = a5;
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__asm__ __volatile__ ("syscall" : "=a"(ret) : "a"(n), "D"(a1), "S"(a2),
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"d"(a3), "r"(r10), "r"(r8) : "rcx", "r11", "memory");
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return ret;
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}
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static __inline long __syscall6(long n, long a1, long a2, long a3, long a4, long a5, long a6)
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{
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unsigned long ret;
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register long r10 __asm__("r10") = a4;
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register long r8 __asm__("r8") = a5;
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register long r9 __asm__("r9") = a6;
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__asm__ __volatile__ ("syscall" : "=a"(ret) : "a"(n), "D"(a1), "S"(a2),
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"d"(a3), "r"(r10), "r"(r8), "r"(r9) : "rcx", "r11", "memory");
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return ret;
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}
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