mirror of
git://git.musl-libc.org/musl
synced 2024-12-30 02:42:37 +00:00
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.
137 lines
3.7 KiB
C
137 lines
3.7 KiB
C
#define __SYSCALL_LL_E(x) \
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((union { long long ll; long l[2]; }){ .ll = x }).l[0], \
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((union { long long ll; long l[2]; }){ .ll = x }).l[1]
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#define __SYSCALL_LL_O(x) __SYSCALL_LL_E((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__ ("int $128" : "=a"(__ret) : "a"(n) : "memory");
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return __ret;
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}
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#ifndef __PIC__
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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__ ("int $128" : "=a"(__ret) : "a"(n), "b"(a1) : "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__ ("int $128" : "=a"(__ret) : "a"(n), "b"(a1), "c"(a2) : "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__ ("int $128" : "=a"(__ret) : "a"(n), "b"(a1), "c"(a2), "d"(a3) : "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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__asm__ __volatile__ ("int $128" : "=a"(__ret) : "a"(n), "b"(a1), "c"(a2), "d"(a3), "S"(a4) : "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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__asm__ __volatile__ ("int $128" : "=a"(__ret) : "a"(n), "b"(a1), "c"(a2), "d"(a3), "S"(a4), "D"(a5) : "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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__asm__ __volatile__ ("pushl %7 ; pushl %%ebp ; mov 4(%%esp),%%ebp ; int $128 ; popl %%ebp ; popl %%ecx"
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: "=a"(__ret) : "a"(n), "b"(a1), "c"(a2), "d"(a3), "S"(a4), "D"(a5), "g"(a6) : "memory");
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return __ret;
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}
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#else
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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__ ("xchg %2,%%ebx ; int $128 ; xchg %2,%%ebx"
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: "=a"(__ret) : "a"(n), "d"(a1) : "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__ ("xchg %2,%%ebx ; int $128 ; xchg %2,%%ebx"
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: "=a"(__ret) : "a"(n), "d"(a1), "c"(a2) : "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__ ("xchg %2,%%ebx ; int $128 ; xchg %2,%%ebx"
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: "=a"(__ret) : "a"(n), "S"(a1), "c"(a2), "d"(a3) : "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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__asm__ __volatile__ ("xchg %2,%%ebx ; int $128 ; xchg %2,%%ebx"
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: "=a"(__ret) : "a"(n), "D"(a1), "c"(a2), "d"(a3), "S"(a4) : "memory");
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return __ret;
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}
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#if 0
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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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__asm__ __volatile__ ("pushl %2 ; pushl %%ebx ; mov 4(%%esp),%%ebx ; int $128 ; popl %%ebx ; popl %%ecx"
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: "=a"(__ret) : "a"(n), "g"(a1), "c"(a2), "d"(a3), "S"(a4), "D"(a5) : "memory");
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return __ret;
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}
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#else
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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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return (__syscall)(n, a1, a2, a3, a4, a5);
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}
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#endif
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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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return (__syscall)(n, a1, a2, a3, a4, a5, a6);
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}
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#endif
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#define __SC_socket 1
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#define __SC_bind 2
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#define __SC_connect 3
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#define __SC_listen 4
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#define __SC_accept 5
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#define __SC_getsockname 6
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#define __SC_getpeername 7
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#define __SC_socketpair 8
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#define __SC_send 9
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#define __SC_recv 10
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#define __SC_sendto 11
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#define __SC_recvfrom 12
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#define __SC_shutdown 13
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#define __SC_setsockopt 14
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#define __SC_getsockopt 15
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#define __SC_sendmsg 16
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#define __SC_recvmsg 17
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#define __SC_accept4 18
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#define __SC_recvmmsg 19
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#define __SC_sendmmsg 20
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