diff options
Diffstat (limited to 'libc/syscall/syslibc.c')
| -rw-r--r-- | libc/syscall/syslibc.c | 241 |
1 files changed, 0 insertions, 241 deletions
diff --git a/libc/syscall/syslibc.c b/libc/syscall/syslibc.c index e6d58eb..68f5a0b 100644 --- a/libc/syscall/syslibc.c +++ b/libc/syscall/syslibc.c @@ -6,104 +6,9 @@ #include <sys/types.h> #include <errno.h> #include <time.h> -#include <sys/times.h> /* MSDOS has it's own versions */ #ifndef __MSDOS__ -#ifdef __AS386_16__ - -/********************** Function __cstartup *******************************/ - -#ifdef L___cstartup - -void (*__cleanup)() = 0; -char ** environ; - -#asm - loc 2 -call_main: - .word _main ! Segment 2 is the trailing pointers, main and the - .word call_exit ! routine to call exit. -#if __FIRST_ARG_IN_AX__ - .data -saved_arg1: - .word 0 -#endif -#if __CALLER_SAVES__ - .data -loopy_safe: - .word 0 -#endif - .text - -export ___cstartup -___cstartup: ! Crt0 startup - pop cx ! Argc - mov bx,sp ! Calculate ptrs to argv and envp - mov ax,cx - inc ax - shl ax,#1 - add ax,bx - push ax ! Push Envp - mov [_environ],ax ! And save - push bx ! Push argv -#if __FIRST_ARG_IN_AX__ - mov [saved_arg1],cx -#else - push cx ! Push argc -#endif - - mov si,#auto_start ! Pointer to first autostart function -auto_run: -#if __FIRST_ARG_IN_AX__ - mov ax,[saved_arg1] -#endif -#if __CALLER_SAVES__ - mov [loopy_safe],si -#endif - call [si] ! Call the function -#if __CALLER_SAVES__ - mov si,[loopy_safe] -#endif - inc si ! SI at next - inc si - jmp auto_run ! And round for the next. - -call_exit: ! Last item called by above. - pop bx ! Be tidy. -#if !__FIRST_ARG_IN_AX__ - push ax ! At the end the last called was main() push it`s -#endif - call _exit ! return val and call exit(); -bad_exit: - jmp bad_exit ! Exit returned !! - -export _exit -export __exit -_exit: ! exit(rv) function -#if __FIRST_ARG_IN_AX__ - mov [saved_arg1],ax -#else - mov bx,sp - push [bx+2] ! Copy the `rv` for the exit fuctions. -#endif - mov bx,[___cleanup] ! Call exit, normally this is `__do_exit` - test bx,bx - je no_clean ! But it`s default is null - call bx -no_clean: -#if __FIRST_ARG_IN_AX__ - mov ax,[saved_arg1] -#else - inc sp - inc sp -#endif -__exit: ! _exit(rv) - br ___exit ! This is just an alias for __exit(); - -#endasm - -#endif /********************** Function time ************************************/ @@ -118,141 +23,6 @@ time_t *where; } #endif -/********************** Function times ************************************/ - -#ifdef L_times -clock_t times(buf) -struct tms* buf; -{ - long rv; - __times(buf, &rv); - return rv; -} -#endif - -/********************** Function lseek ************************************/ - -#ifdef L_lseek -off_t lseek(fd, posn, where) -int fd; -off_t posn; -int where; -{ - if( __lseek(fd, &posn, where) < 0 ) return -1; - else return posn; -} -#endif - -/********************** Function getpid ************************************/ - -#ifdef L_getpid -int getpid() -{ - int ppid; - return __getpid(&ppid); -} -#endif - -/********************** Function getppid ************************************/ - -#ifdef L_getppid -int getppid() -{ - int ppid; - __getpid(&ppid); - return ppid; -} -#endif - -/********************** Function getuid ************************************/ - -#ifdef L_getuid -int getuid() -{ - int euid; - return __getuid(&euid); -} -#endif - -/********************** Function geteuid ************************************/ - -#ifdef L_geteuid -int geteuid() -{ - int euid; - __getuid(&euid); - return euid; -} -#endif - -/********************** Function getgid ************************************/ - -#ifdef L_getgid -int getgid() -{ - int egid; - return __getgid(&egid); -} -#endif - -/********************** Function getegid ************************************/ - -#ifdef L_getegid -int getegid() -{ - int egid; - __getgid(&egid); - return egid; -} -#endif - -/********************** Function dup2 ************************************/ - -#ifdef L_dup2 - -#include <fcntl.h> - -int dup2(ifd, ofd) -int ifd; -{ - return fcntl(ifd, F_DUPFD, ofd); -} -#endif - -/********************** Function dup ************************************/ - -#ifdef L_dup -#include <sys/param.h> -#include <fcntl.h> -#include <errno.h> - -/* This is horribly complicated, there _must_ be a better way! */ - -int -dup(fd) -int fd; -{ - int nfd; - extern int errno; - int oerr = errno; - - errno = 0; - for(nfd=0; nfd<NR_OPEN; nfd++) - { - if( fcntl(nfd, F_GETFD) < 0 ) - break; - } - if( nfd == NR_OPEN ) { errno = EMFILE ; return -1; } - errno = oerr; - if( fcntl(fd, F_DUPFD, nfd) < 0 ) - { - if( errno == EINVAL ) errno = EMFILE; - return -1; - } - return nfd; -} -#endif - /********************** Function abort ************************************/ #ifdef L_abort @@ -310,16 +80,6 @@ int sig; } #endif -/********************** Function getpgrp ************************************/ - -#ifdef L_getpgrp -int -getpgrp() -{ - return getpgid(0); -} -#endif - /********************** Function setpgrp ************************************/ #ifdef L_setpgrp @@ -392,5 +152,4 @@ unsigned long useconds; /********************** THE END ********************************************/ -#endif /* __AS386_16__ */ #endif /* __MSDOS__ */ |