1 #ifndef _UNISTD_H 2 #define _UNISTD_H 3 4 FILE_LICENCE ( GPL2_OR_LATER ); 5 6 #include <stddef.h> 7 #include <stdarg.h> 8 9 extern int execv ( const char *command, char * const argv[] ); 10 11 /** 12 * Execute command 13 * 14 * @v command Command name 15 * @v arg ... Argument list (starting with argv[0]) 16 * @ret rc Command exit status 17 * 18 * This is a front end to execv(). 19 */ 20 #define execl( command, arg, ... ) ( { \ 21 char * const argv[] = { (arg), ## __VA_ARGS__ }; \ 22 int rc = execv ( (command), argv ); \ 23 rc; \ 24 } ) 25 26 /* Pick up udelay() */ 27 #include <gpxe/timer.h> 28 29 /* 30 * sleep() prototype is defined by POSIX.1. usleep() prototype is 31 * defined by 4.3BSD. udelay() and mdelay() prototypes are chosen to 32 * be reasonably sensible. 33 * 34 */ 35 36 extern unsigned int sleep ( unsigned int seconds ); 37 extern void mdelay ( unsigned long msecs ); 38 39 static inline __always_inline void usleep ( unsigned long usecs ) { 40 udelay ( usecs ); 41 } 42 43 #endif /* _UNISTD_H */ 44
