X-Git-Url: http://nsz.repo.hu/git/?a=blobdiff_plain;ds=sidebyside;f=src%2Finternal%2Fsyscall.h;h=a93f6d1e0b7d60bc5e5299bdc407b6f9cd78251f;hb=f22a9edaf8a6f2ca1d314d18b3785558279a5c03;hp=819aafe6f4e1c4eff0e8eb404cdb0424f77a88a1;hpb=685e40bb09f5f24a2af54ea09c97328808f76990;p=musl diff --git a/src/internal/syscall.h b/src/internal/syscall.h index 819aafe6..a93f6d1e 100644 --- a/src/internal/syscall.h +++ b/src/internal/syscall.h @@ -1,32 +1,245 @@ -#ifndef _SYSCALL_H -#define _SYSCALL_H - -/* This header is mostly useless leftover wrapper cruft */ +#ifndef _INTERNAL_SYSCALL_H +#define _INTERNAL_SYSCALL_H #include +#include "syscall_arch.h" + +#ifndef SYSCALL_RLIM_INFINITY +#define SYSCALL_RLIM_INFINITY (~0ULL) +#endif + +#ifndef SYSCALL_MMAP2_UNIT +#define SYSCALL_MMAP2_UNIT 4096ULL +#endif + +#ifndef __scc +#define __scc(X) ((long) (X)) +typedef long syscall_arg_t; +#endif -#define syscall0 syscall -#define syscall1 syscall -#define syscall2 syscall -#define syscall3 syscall -#define syscall4 syscall -#define syscall5 syscall -#define syscall6 syscall +#ifdef SHARED +__attribute__((visibility("hidden"))) +#endif +long __syscall_ret(unsigned long), __syscall(syscall_arg_t, ...), + __syscall_cp(syscall_arg_t, syscall_arg_t, syscall_arg_t, syscall_arg_t, + syscall_arg_t, syscall_arg_t, syscall_arg_t); + +#ifdef SYSCALL_NO_INLINE +#define __syscall0(n) (__syscall)(n) +#define __syscall1(n,a) (__syscall)(n,__scc(a)) +#define __syscall2(n,a,b) (__syscall)(n,__scc(a),__scc(b)) +#define __syscall3(n,a,b,c) (__syscall)(n,__scc(a),__scc(b),__scc(c)) +#define __syscall4(n,a,b,c,d) (__syscall)(n,__scc(a),__scc(b),__scc(c),__scc(d)) +#define __syscall5(n,a,b,c,d,e) (__syscall)(n,__scc(a),__scc(b),__scc(c),__scc(d),__scc(e)) +#define __syscall6(n,a,b,c,d,e,f) (__syscall)(n,__scc(a),__scc(b),__scc(c),__scc(d),__scc(e),__scc(f)) +#else +#define __syscall1(n,a) __syscall1(n,__scc(a)) +#define __syscall2(n,a,b) __syscall2(n,__scc(a),__scc(b)) +#define __syscall3(n,a,b,c) __syscall3(n,__scc(a),__scc(b),__scc(c)) +#define __syscall4(n,a,b,c,d) __syscall4(n,__scc(a),__scc(b),__scc(c),__scc(d)) +#define __syscall5(n,a,b,c,d,e) __syscall5(n,__scc(a),__scc(b),__scc(c),__scc(d),__scc(e)) +#define __syscall6(n,a,b,c,d,e,f) __syscall6(n,__scc(a),__scc(b),__scc(c),__scc(d),__scc(e),__scc(f)) +#endif +#define __syscall7(n,a,b,c,d,e,f,g) (__syscall)(n,__scc(a),__scc(b),__scc(c),__scc(d),__scc(e),__scc(f),__scc(g)) + +#define __SYSCALL_NARGS_X(a,b,c,d,e,f,g,h,n,...) n +#define __SYSCALL_NARGS(...) __SYSCALL_NARGS_X(__VA_ARGS__,7,6,5,4,3,2,1,0,) +#define __SYSCALL_CONCAT_X(a,b) a##b +#define __SYSCALL_CONCAT(a,b) __SYSCALL_CONCAT_X(a,b) +#define __SYSCALL_DISP(b,...) __SYSCALL_CONCAT(b,__SYSCALL_NARGS(__VA_ARGS__))(__VA_ARGS__) + +#define __syscall(...) __SYSCALL_DISP(__syscall,__VA_ARGS__) +#define syscall(...) __syscall_ret(__syscall(__VA_ARGS__)) #define socketcall __socketcall +#define socketcall_cp __socketcall_cp + +#define __syscall_cp0(n) (__syscall_cp)(n,0,0,0,0,0,0) +#define __syscall_cp1(n,a) (__syscall_cp)(n,__scc(a),0,0,0,0,0) +#define __syscall_cp2(n,a,b) (__syscall_cp)(n,__scc(a),__scc(b),0,0,0,0) +#define __syscall_cp3(n,a,b,c) (__syscall_cp)(n,__scc(a),__scc(b),__scc(c),0,0,0) +#define __syscall_cp4(n,a,b,c,d) (__syscall_cp)(n,__scc(a),__scc(b),__scc(c),__scc(d),0,0) +#define __syscall_cp5(n,a,b,c,d,e) (__syscall_cp)(n,__scc(a),__scc(b),__scc(c),__scc(d),__scc(e),0) +#define __syscall_cp6(n,a,b,c,d,e,f) (__syscall_cp)(n,__scc(a),__scc(b),__scc(c),__scc(d),__scc(e),__scc(f)) + +#define __syscall_cp(...) __SYSCALL_DISP(__syscall_cp,__VA_ARGS__) +#define syscall_cp(...) __syscall_ret(__syscall_cp(__VA_ARGS__)) + +#ifdef SYS_socket +#define __socketcall(nm,a,b,c,d,e,f) syscall(SYS_##nm, a, b, c, d, e, f) +#define __socketcall_cp(nm,a,b,c,d,e,f) syscall_cp(SYS_##nm, a, b, c, d, e, f) +#else +#define __socketcall(nm,a,b,c,d,e,f) syscall(SYS_socketcall, __SC_##nm, \ + ((long [6]){ (long)a, (long)b, (long)c, (long)d, (long)e, (long)f })) +#define __socketcall_cp(nm,a,b,c,d,e,f) syscall_cp(SYS_socketcall, __SC_##nm, \ + ((long [6]){ (long)a, (long)b, (long)c, (long)d, (long)e, (long)f })) +#endif + +/* fixup legacy 16-bit junk */ + +#ifdef SYS_getuid32 +#undef SYS_lchown +#undef SYS_getuid +#undef SYS_getgid +#undef SYS_geteuid +#undef SYS_getegid +#undef SYS_setreuid +#undef SYS_setregid +#undef SYS_getgroups +#undef SYS_setgroups +#undef SYS_fchown +#undef SYS_setresuid +#undef SYS_getresuid +#undef SYS_setresgid +#undef SYS_getresgid +#undef SYS_chown +#undef SYS_setuid +#undef SYS_setgid +#undef SYS_setfsuid +#undef SYS_setfsgid +#define SYS_lchown SYS_lchown32 +#define SYS_getuid SYS_getuid32 +#define SYS_getgid SYS_getgid32 +#define SYS_geteuid SYS_geteuid32 +#define SYS_getegid SYS_getegid32 +#define SYS_setreuid SYS_setreuid32 +#define SYS_setregid SYS_setregid32 +#define SYS_getgroups SYS_getgroups32 +#define SYS_setgroups SYS_setgroups32 +#define SYS_fchown SYS_fchown32 +#define SYS_setresuid SYS_setresuid32 +#define SYS_getresuid SYS_getresuid32 +#define SYS_setresgid SYS_setresgid32 +#define SYS_getresgid SYS_getresgid32 +#define SYS_chown SYS_chown32 +#define SYS_setuid SYS_setuid32 +#define SYS_setgid SYS_setgid32 +#define SYS_setfsuid SYS_setfsuid32 +#define SYS_setfsgid SYS_setfsgid32 +#endif + + +/* fixup legacy 32-bit-vs-lfs64 junk */ + +#ifdef SYS_fcntl64 +#undef SYS_fcntl +#define SYS_fcntl SYS_fcntl64 +#endif + +#ifdef SYS_getdents64 +#undef SYS_getdents +#define SYS_getdents SYS_getdents64 +#endif + +#ifdef SYS_ftruncate64 +#undef SYS_ftruncate +#undef SYS_truncate +#define SYS_ftruncate SYS_ftruncate64 +#define SYS_truncate SYS_truncate64 +#endif + +#ifdef SYS_stat64 +#undef SYS_stat +#define SYS_stat SYS_stat64 +#endif + +#ifdef SYS_fstat64 +#undef SYS_fstat +#define SYS_fstat SYS_fstat64 +#endif + +#ifdef SYS_lstat64 +#undef SYS_lstat +#define SYS_lstat SYS_lstat64 +#endif + +#ifdef SYS_statfs64 +#undef SYS_statfs +#define SYS_statfs SYS_statfs64 +#endif + +#ifdef SYS_fstatfs64 +#undef SYS_fstatfs +#define SYS_fstatfs SYS_fstatfs64 +#endif + +#if defined(SYS_newfstatat) +#undef SYS_fstatat +#define SYS_fstatat SYS_newfstatat +#elif defined(SYS_fstatat64) +#undef SYS_fstatat +#define SYS_fstatat SYS_fstatat64 +#endif + +#ifdef SYS_ugetrlimit +#undef SYS_getrlimit +#define SYS_getrlimit SYS_ugetrlimit +#endif + +#ifdef SYS__newselect +#undef SYS_select +#define SYS_select SYS__newselect +#endif + +#ifdef SYS_pread64 +#undef SYS_pread +#undef SYS_pwrite +#define SYS_pread SYS_pread64 +#define SYS_pwrite SYS_pwrite64 +#endif + +#ifdef SYS_fadvise64_64 +#undef SYS_fadvise +#define SYS_fadvise SYS_fadvise64_64 +#elif defined(SYS_fadvise64) +#undef SYS_fadvise +#define SYS_fadvise SYS_fadvise64 +#endif + +#ifdef SYS_sendfile64 +#undef SYS_sendfile +#define SYS_sendfile SYS_sendfile64 +#endif + +/* socketcall calls */ + +#define __SC_socket 1 +#define __SC_bind 2 +#define __SC_connect 3 +#define __SC_listen 4 +#define __SC_accept 5 +#define __SC_getsockname 6 +#define __SC_getpeername 7 +#define __SC_socketpair 8 +#define __SC_send 9 +#define __SC_recv 10 +#define __SC_sendto 11 +#define __SC_recvfrom 12 +#define __SC_shutdown 13 +#define __SC_setsockopt 14 +#define __SC_getsockopt 15 +#define __SC_sendmsg 16 +#define __SC_recvmsg 17 +#define __SC_accept4 18 +#define __SC_recvmmsg 19 +#define __SC_sendmmsg 20 + +#ifdef SYS_open +#define __sys_open2(x,pn,fl) __syscall2(SYS_open, pn, (fl)|O_LARGEFILE) +#define __sys_open3(x,pn,fl,mo) __syscall3(SYS_open, pn, (fl)|O_LARGEFILE, mo) +#define __sys_open_cp2(x,pn,fl) __syscall_cp2(SYS_open, pn, (fl)|O_LARGEFILE) +#define __sys_open_cp3(x,pn,fl,mo) __syscall_cp3(SYS_open, pn, (fl)|O_LARGEFILE, mo) +#else +#define __sys_open2(x,pn,fl) __syscall3(SYS_openat, AT_FDCWD, pn, (fl)|O_LARGEFILE) +#define __sys_open3(x,pn,fl,mo) __syscall4(SYS_openat, AT_FDCWD, pn, (fl)|O_LARGEFILE, mo) +#define __sys_open_cp2(x,pn,fl) __syscall_cp3(SYS_openat, AT_FDCWD, pn, (fl)|O_LARGEFILE) +#define __sys_open_cp3(x,pn,fl,mo) __syscall_cp4(SYS_openat, AT_FDCWD, pn, (fl)|O_LARGEFILE, mo) +#endif + +#define __sys_open(...) __SYSCALL_DISP(__sys_open,,__VA_ARGS__) +#define sys_open(...) __syscall_ret(__sys_open(__VA_ARGS__)) -/* the following are needed for iso c functions to use */ -#define __syscall_open(filename, flags, mode) syscall(__NR_open, (filename), (flags)|0100000, (mode)) -#define __syscall_read(fd, buf, len) syscall(__NR_read, (fd), (buf), (len)) -#define __syscall_write(fd, buf, len) syscall(__NR_write, (fd), (buf), (len)) -#define __syscall_close(fd) syscall(__NR_close, (fd)) -#define __syscall_fcntl(fd, cmd, arg) syscall(__NR_fcntl, (fd), (cmd), (arg)) -#define __syscall_dup2(old, new) syscall(__NR_dup2, (old), (new)) -#define __syscall_unlink(path) syscall(__NR_unlink, (path)) -#define __syscall_getpid() syscall(__NR_getpid) -#define __syscall_kill(pid,sig) syscall(__NR_kill, (pid), (sig)) -#define __syscall_sigaction(sig,new,old) syscall(__NR_rt_sigaction, (sig), (new), (old), 8) -#define __syscall_ioctl(fd,ioc,arg) syscall(__NR_ioctl, (fd), (ioc), (arg)) -#define __syscall_exit(code) syscall(__NR_exit, code) +#define __sys_open_cp(...) __SYSCALL_DISP(__sys_open_cp,,__VA_ARGS__) +#define sys_open_cp(...) __syscall_ret(__sys_open_cp(__VA_ARGS__)) #endif