diff options
Diffstat (limited to 'libc/sysdeps')
| -rw-r--r-- | libc/sysdeps/linux/common/syscalls.c | 144 |
1 files changed, 98 insertions, 46 deletions
diff --git a/libc/sysdeps/linux/common/syscalls.c b/libc/sysdeps/linux/common/syscalls.c index 6b5261afb..b1fe3dc98 100644 --- a/libc/sysdeps/linux/common/syscalls.c +++ b/libc/sysdeps/linux/common/syscalls.c @@ -38,9 +38,15 @@ _syscall1(void, _exit, int, status); //#define __NR_fork 2 #ifdef L_fork +#include <unistd.h> # ifdef __UCLIBC_HAS_MMU__ -# include <unistd.h> _syscall0(pid_t, fork); +# else + pid_t fork(void) + { + __set_errno(ENOSYS); + return -1; + } # endif #endif @@ -292,7 +298,6 @@ _syscall1(int, rmdir, const char *, pathname); //#define __NR_dup 41 #ifdef L_dup - #include <unistd.h> _syscall1(int, dup, int, oldfd); #endif @@ -329,37 +334,43 @@ _syscall0(gid_t, getgid); //#define __NR_geteuid 49 #ifdef L_geteuid -#ifdef __NR_geteuid -#include <unistd.h> -_syscall0(uid_t, geteuid); -#else -uid_t geteuid(void) -{ - return (getuid()); -} -#endif +# ifdef __NR_geteuid +# include <unistd.h> + _syscall0(uid_t, geteuid); +# else + uid_t geteuid(void) + { + return (getuid()); + } +# endif #endif //#define __NR_getegid 50 #ifdef L_getegid -#ifdef __NR_getegid -#include <unistd.h> -_syscall0(gid_t, getegid); -#else -gid_t getegid(void) -{ - return (getgid()); -} -#endif +# ifdef __NR_getegid +# include <unistd.h> + _syscall0(gid_t, getegid); +# else + gid_t getegid(void) + { + return (getgid()); + } +# endif #endif //#define __NR_acct 51 -#ifdef __NR_umount2 /* Old kernels don't have umount2 */ //#define __NR_umount2 52 -# ifdef L_umount2 +#ifdef L_umount2 +# ifdef __NR_umount2 /* Old kernels don't have umount2 */ # include <sys/mount.h> _syscall2(int, umount2, const char *, special_file, int, flags); +# else + int umount2(const char * special_file, int flags) + { + __set_errno(ENOSYS); + return -1; + } # endif #endif @@ -370,7 +381,6 @@ gid_t getegid(void) #include <stdarg.h> #include <sys/ioctl.h> #define __NR__ioctl __NR_ioctl - extern int _ioctl(int fd, int request, void *arg); _syscall3(int, _ioctl, int, fd, int, request, void *, arg); @@ -386,7 +396,6 @@ int ioctl(int fd, unsigned long int request, ...) va_end(list); return _ioctl(fd, request, arg); } - #endif //#define __NR_fcntl 55 @@ -394,7 +403,6 @@ int ioctl(int fd, unsigned long int request, ...) #include <stdarg.h> #include <fcntl.h> #define __NR__fcntl __NR_fcntl - extern int _fcntl(int fd, int cmd, long arg); _syscall3(int, _fcntl, int, fd, int, cmd, long, arg); @@ -446,15 +454,15 @@ _syscall2(int, dup2, int, oldfd, int, newfd); //#define __NR_getppid 64 #ifdef L_getppid -#include <unistd.h> -#ifdef __NR_getppid -_syscall0(pid_t, getppid); -#else -pid_t getppid(void) -{ - return (getpid()); -} -#endif +# include <unistd.h> +# ifdef __NR_getppid + _syscall0(pid_t, getppid); +# else + pid_t getppid(void) + { + return (getpid()); + } +# endif #endif //#define __NR_getpgrp 65 @@ -588,7 +596,6 @@ _syscall2(int, swapon, const char *, path, int, swapflags); //#define __NR_reboot 88 #ifdef L__reboot #define __NR__reboot __NR_reboot - extern int _reboot(int magic, int magic2, int flag); _syscall3(int, _reboot, int, magic, int, magic2, int, flag); @@ -606,7 +613,6 @@ int reboot(int flag) #define __NR__mmap __NR_mmap #include <unistd.h> #include <sys/mman.h> - extern __ptr_t _mmap(unsigned long *buffer); _syscall1(__ptr_t, _mmap, unsigned long *, buffer); @@ -683,11 +689,17 @@ _syscall2(int, statfs, const char *, path, struct statfs *, buf); _syscall2(int, fstatfs, int, fd, struct statfs *, buf); #endif -#ifdef __UCLIBC_HAS_MMU__ //#define __NR_ioperm 101 -# ifdef L_ioperm -# include <sys/io.h> +#ifdef L_ioperm +#include <sys/io.h> +# if defined __UCLIBC_HAS_MMU__ && defined __NR_ioperm _syscall3(int, ioperm, unsigned long, from, unsigned long, num, int, turn_on); +# else + int ioperm(unsigned long from, unsigned long num, int turn_on) + { + __set_errno(ENOSYS); + return -1; + } # endif #endif @@ -700,7 +712,6 @@ _syscall2(int, socketcall, int, call, unsigned long *, args); #ifdef L__syslog #include <unistd.h> #define __NR__syslog __NR_syslog - extern int _syslog(int type, char *buf, int len); _syscall3(int, _syslog, int, type, char *, buf, int, len); @@ -802,12 +813,18 @@ int fstat(int filedes, struct libc_stat *buf) //#define __NR_olduname 109 -#if defined __UCLIBC_HAS_MMU__ && defined __NR_iopl //#define __NR_iopl 110 #ifdef L_iopl #include <sys/io.h> -_syscall1(int, iopl, int, level); -#endif +# if defined __UCLIBC_HAS_MMU__ && defined __NR_iopl + _syscall1(int, iopl, int, level); +# else + int iopl(int level) + { + __set_errno(ENOSYS); + return -1; + } +# endif #endif //#define __NR_vhangup 111 @@ -906,6 +923,12 @@ _syscall5(int, init_module, void *, first, void *, second, void *, third, #ifdef L_delete_module # ifdef __NR_delete_module _syscall1(int, delete_module, const char *, name); +# else + int delete_module(const char * name) + { + __set_errno(ENOSYS); + return -1; + } # endif #endif @@ -1048,8 +1071,15 @@ _syscall4(__ptr_t, mremap, __ptr_t, old_address, size_t, old_size, size_t, //#define __NR_query_module 167 #ifdef L_query_module # ifdef __NR_query_module - _syscall5(int, query_module, const char *, name, int, which, - void *, buf, size_t, bufsize, size_t*, ret); + _syscall5(int, query_module, const char *, name, int, which, + void *, buf, size_t, bufsize, size_t*, ret); +# else + int query_module(const char * name, int which, + void * buf, size_t bufsize, size_t* ret) + { + __set_errno(ENOSYS); + return -1; + } # endif #endif @@ -1079,11 +1109,33 @@ _syscall3(int, chown, const char *, path, uid_t, owner, gid_t, group); #endif //#define __NR_getcwd 183 -// See unistd/getcwd.c -- we don't use the syscall, even when it is available... +// See unistd/getcwd.c -- we don't use this syscall, even when it is available... //#define __NR_capget 184 +#ifdef L_capget +# ifdef __NR_capget + _syscall2(int, capget, void*, header, void*, data); +# else + int capget(void* header, void* data) + { + __set_errno(ENOSYS); + return -1; + } +# endif +#endif //#define __NR_capset 185 +#ifdef L_capset +# ifdef __NR_capset + _syscall2(int, capset, void*, header, const void*, data); +# else + int capset(void* header, const void* data) + { + __set_errno(ENOSYS); + return -1; + } +# endif +#endif //#define __NR_sigaltstack 186 |