《操作系统》的实验代码。
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#ifndef __USER_LIBS_ULIB_H__
#define __USER_LIBS_ULIB_H__
#include <defs.h>
void __warn(const char *file, int line, const char *fmt, ...);
void __noreturn __panic(const char *file, int line, const char *fmt, ...);
#define warn(...) \
__warn(__FILE__, __LINE__, __VA_ARGS__)
#define panic(...) \
__panic(__FILE__, __LINE__, __VA_ARGS__)
#define assert(x) \
do { \
if (!(x)) { \
panic("assertion failed: %s", #x); \
} \
} while (0)
// static_assert(x) will generate a compile-time error if 'x' is false.
#define static_assert(x) \
switch (x) { case 0: case (x): ; }
void __noreturn exit(int error_code);
int fork(void);
int wait(void);
int waitpid(int pid, int *store);
void yield(void);
int kill(int pid);
int getpid(void);
void print_pgdir(void);
unsigned int gettime_msec(void);
void lab6_set_priority(uint32_t priority);
#endif /* !__USER_LIBS_ULIB_H__ */