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[/] [openrisc/] [trunk/] [gnu-src/] [newlib-1.17.0/] [libgloss/] [arm/] [libcfunc.c] - Rev 310
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/* Support files for GNU libc. Files in the C namespace go here. Files in the system namespace (ie those that start with an underscore) go in syscalls.c. Note: These functions are in a seperate file so that OS providers can overrride the system call stubs (defined in syscalls.c) without having to provide libc funcitons as well. */ #include "swi.h" #include <errno.h> #include <unistd.h> unsigned __attribute__((weak)) alarm (unsigned seconds) { (void)seconds; return 0; } clock_t _clock(void); clock_t __attribute__((weak)) clock(void) { return _clock(); } int _isatty(int fildes); int __attribute__((weak)) isatty(int fildes) { return _isatty(fildes); } int __attribute__((weak)) pause(void) { errno = ENOSYS; return -1; } #include <sys/types.h> #include <time.h> unsigned __attribute__((weak)) sleep(unsigned seconds) { clock_t t0 = _clock(); clock_t dt = seconds * CLOCKS_PER_SEC; while (_clock() - t0 < dt); return 0; } int __attribute__((weak)) usleep(useconds_t useconds) { clock_t t0 = _clock(); clock_t dt = useconds / (1000000/CLOCKS_PER_SEC); while (_clock() - t0 < dt); return 0; }
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