| struct syscall_result { |
| long val; |
| int errno; |
| }; |
| |
| static struct syscall_result syscall_return(long result) |
| { |
| struct syscall_result res; |
| if (((unsigned long)result) >= ((unsigned long)-125)) { |
| res.errno = - result; |
| res.val = -1; |
| } else { |
| res.errno = 0; |
| res.val = result; |
| } |
| return res; |
| } |
| |
| static struct syscall_result syscall0(unsigned long nr) |
| { |
| long res; |
| asm volatile( |
| "int $0x80" |
| : "=a" (res) |
| : "a" (nr)); |
| return syscall_return(res); |
| } |
| |
| static struct syscall_result syscall1(unsigned long nr, unsigned long arg1) |
| { |
| long res; |
| asm volatile( |
| "int $0x80" |
| : "=a" (res) |
| : "a" (nr), "b" (arg1)); |
| return syscall_return(res); |
| |
| } |
| |
| static struct syscall_result syscall2(unsigned long nr, unsigned long arg1, unsigned long arg2) |
| { |
| long res; |
| asm volatile( |
| "int $0x80" |
| : "=a" (res) |
| : "a" (nr), "b" (arg1), "c" (arg2)); |
| return syscall_return(res); |
| |
| } |
| |
| |
| static struct syscall_result syscall3(unsigned long nr, unsigned long arg1, unsigned long arg2, |
| unsigned long arg3) |
| { |
| long res; |
| asm volatile( |
| "int $0x80" |
| : "=a" (res) |
| : "a" (nr), "b" (arg1), "c" (arg2), "d" (arg3)); |
| return syscall_return(res); |
| |
| } |
| |
| static struct syscall_result syscall4(unsigned long nr, unsigned long arg1, unsigned long arg2, |
| unsigned long arg3, unsigned long arg4) |
| { |
| long res; |
| asm volatile( |
| "int $0x80" |
| : "=a" (res) |
| : "a" (nr), "b" (arg1), "c" (arg2), "d" (arg3), "S" (arg4)); |
| return syscall_return(res); |
| |
| } |
| |
| static struct syscall_result syscall5(unsigned long nr, unsigned long arg1, unsigned long arg2, |
| unsigned long arg3, unsigned long arg4, unsigned long arg5) |
| { |
| long res; |
| asm volatile( |
| "int $0x80" |
| : "=a" (res) |
| : "a" (nr), "b" (arg1), "c" (arg2), "d" (arg3), |
| "S" (arg4), "D" (arg5)); |
| return syscall_return(res); |
| |
| } |
| |
| #define NR_exit 1 |
| #define NR_fork 2 |
| #define NR_read 3 |
| #define NR_write 4 |
| #define NR_open 5 |
| #define NR_close 6 |
| #define NR_waitpid 7 |
| #define NR_creat 8 |
| #define NR_link 9 |
| #define NR_unlink 10 |
| #define NR_execve 11 |
| #define NR_chdir 12 |
| #define NR_time 13 |
| #define NR_mknod 14 |
| #define NR_chmod 15 |
| #define NR_lchown 16 |
| #define NR_break 17 |
| #define NR_oldstat 18 |
| #define NR_lseek 19 |
| #define NR_getpid 20 |
| #define NR_mount 21 |
| #define NR_umount 22 |
| #define NR_setuid 23 |
| #define NR_getuid 24 |
| #define NR_stime 25 |
| #define NR_ptrace 26 |
| #define NR_alarm 27 |
| #define NR_oldfstat 28 |
| #define NR_pause 29 |
| #define NR_utime 30 |
| #define NR_stty 31 |
| #define NR_gtty 32 |
| #define NR_access 33 |
| #define NR_nice 34 |
| #define NR_ftime 35 |
| #define NR_sync 36 |
| #define NR_kill 37 |
| #define NR_rename 38 |
| #define NR_mkdir 39 |
| #define NR_rmdir 40 |
| #define NR_dup 41 |
| #define NR_pipe 42 |
| #define NR_times 43 |
| #define NR_prof 44 |
| #define NR_brk 45 |
| #define NR_setgid 46 |
| #define NR_getgid 47 |
| #define NR_signal 48 |
| #define NR_geteuid 49 |
| #define NR_getegid 50 |
| #define NR_acct 51 |
| #define NR_umount2 52 |
| #define NR_lock 53 |
| #define NR_ioctl 54 |
| #define NR_fcntl 55 |
| #define NR_mpx 56 |
| #define NR_setpgid 57 |
| #define NR_ulimit 58 |
| #define NR_oldolduname 59 |
| #define NR_umask 60 |
| #define NR_chroot 61 |
| #define NR_ustat 62 |
| #define NR_dup2 63 |
| #define NR_getppid 64 |
| #define NR_getpgrp 65 |
| #define NR_setsid 66 |
| #define NR_sigaction 67 |
| #define NR_sgetmask 68 |
| #define NR_ssetmask 69 |
| #define NR_setreuid 70 |
| #define NR_setregid 71 |
| #define NR_sigsuspend 72 |
| #define NR_sigpending 73 |
| #define NR_sethostname 74 |
| #define NR_setrlimit 75 |
| #define NR_getrlimit 76 |
| #define NR_getrusage 77 |
| #define NR_gettimeofday 78 |
| #define NR_settimeofday 79 |
| #define NR_getgroups 80 |
| #define NR_setgroups 81 |
| #define NR_select 82 |
| #define NR_symlink 83 |
| #define NR_oldlstat 84 |
| #define NR_readlink 85 |
| #define NR_uselib 86 |
| #define NR_swapon 87 |
| #define NR_reboot 88 |
| #define NR_readdir 89 |
| #define NR_mmap 90 |
| #define NR_munmap 91 |
| #define NR_truncate 92 |
| #define NR_ftruncate 93 |
| #define NR_fchmod 94 |
| #define NR_fchown 95 |
| #define NR_getpriority 96 |
| #define NR_setpriority 97 |
| #define NR_profil 98 |
| #define NR_statfs 99 |
| #define NR_fstatfs 100 |
| #define NR_ioperm 101 |
| #define NR_socketcall 102 |
| #define NR_syslog 103 |
| #define NR_setitimer 104 |
| #define NR_getitimer 105 |
| #define NR_stat 106 |
| #define NR_lstat 107 |
| #define NR_fstat 108 |
| #define NR_olduname 109 |
| #define NR_iopl 110 |
| #define NR_vhangup 111 |
| #define NR_idle 112 |
| #define NR_vm86old 113 |
| #define NR_wait4 114 |
| #define NR_swapoff 115 |
| #define NR_sysinfo 116 |
| #define NR_ipc 117 |
| #define NR_fsync 118 |
| #define NR_sigreturn 119 |
| #define NR_clone 120 |
| #define NR_setdomainname 121 |
| #define NR_uname 122 |
| #define NR_modify_ldt 123 |
| #define NR_adjtimex 124 |
| #define NR_mprotect 125 |
| #define NR_sigprocmask 126 |
| #define NR_create_module 127 |
| #define NR_init_module 128 |
| #define NR_delete_module 129 |
| #define NR_get_kernel_syms 130 |
| #define NR_quotactl 131 |
| #define NR_getpgid 132 |
| #define NR_fchdir 133 |
| #define NR_bdflush 134 |
| #define NR_sysfs 135 |
| #define NR_personality 136 |
| #define NR_afs_syscall 137 /* Syscall for Andrew File System */ |
| #define NR_setfsuid 138 |
| #define NR_setfsgid 139 |
| #define NR__llseek 140 |
| #define NR_getdents 141 |
| #define NR__newselect 142 |
| #define NR_flock 143 |
| #define NR_msync 144 |
| #define NR_readv 145 |
| #define NR_writev 146 |
| #define NR_getsid 147 |
| #define NR_fdatasync 148 |
| #define NR__sysctl 149 |
| #define NR_mlock 150 |
| #define NR_munlock 151 |
| #define NR_mlockall 152 |
| #define NR_munlockall 153 |
| #define NR_sched_setparam 154 |
| #define NR_sched_getparam 155 |
| #define NR_sched_setscheduler 156 |
| #define NR_sched_getscheduler 157 |
| #define NR_sched_yield 158 |
| #define NR_sched_get_priority_max 159 |
| #define NR_sched_get_priority_min 160 |
| #define NR_sched_rr_get_interval 161 |
| #define NR_nanosleep 162 |
| #define NR_mremap 163 |
| #define NR_setresuid 164 |
| #define NR_getresuid 165 |
| #define NR_vm86 166 |
| #define NR_query_module 167 |
| #define NR_poll 168 |
| #define NR_nfsservctl 169 |
| #define NR_setresgid 170 |
| #define NR_getresgid 171 |
| #define NR_prctl 172 |
| #define NR_rt_sigreturn 173 |
| #define NR_rt_sigaction 174 |
| #define NR_rt_sigprocmask 175 |
| #define NR_rt_sigpending 176 |
| #define NR_rt_sigtimedwait 177 |
| #define NR_rt_sigqueueinfo 178 |
| #define NR_rt_sigsuspend 179 |
| #define NR_pread 180 |
| #define NR_pwrite 181 |
| #define NR_chown 182 |
| #define NR_getcwd 183 |
| #define NR_capget 184 |
| #define NR_capset 185 |
| #define NR_sigaltstack 186 |
| #define NR_sendfile 187 |
| #define NR_getpmsg 188 /* some people actually want streams */ |
| #define NR_putpmsg 189 /* some people actually want streams */ |
| #define NR_vfork 190 |
| |
| /* Standard file descriptors */ |
| #define STDIN_FILENO 0 /* Standard input */ |
| #define STDOUT_FILENO 1 /* Standard output */ |
| #define STDERR_FILENO 2 /* Standard error output */ |
| |
| typedef long ssize_t; |
| typedef unsigned long size_t; |
| |
| static ssize_t write(int fd, const void *buf, size_t count) |
| { |
| struct syscall_result res; |
| res = syscall3(NR_write, fd, (unsigned long)buf, count); |
| return res.val; |
| } |
| |
| static void _exit(int status) |
| { |
| struct syscall_result res; |
| res = syscall1(NR_exit, status); |
| } |
