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82 lines
1.2 KiB
82 lines
1.2 KiB
#include <defs.h>
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#include <unistd.h>
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#include <stdarg.h>
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#include <syscall.h>
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#define MAX_ARGS 5
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static inline int
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syscall(int num, ...) {
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va_list ap;
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va_start(ap, num);
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uint32_t a[MAX_ARGS];
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int i, ret;
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for (i = 0; i < MAX_ARGS; i ++) {
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a[i] = va_arg(ap, uint32_t);
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}
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va_end(ap);
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asm volatile (
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"int %1;"
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: "=a" (ret)
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: "i" (T_SYSCALL),
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"a" (num),
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"d" (a[0]),
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"c" (a[1]),
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"b" (a[2]),
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"D" (a[3]),
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"S" (a[4])
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: "cc", "memory");
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return ret;
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}
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int
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sys_exit(int error_code) {
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return syscall(SYS_exit, error_code);
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}
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int
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sys_fork(void) {
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return syscall(SYS_fork);
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}
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int
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sys_wait(int pid, int *store) {
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return syscall(SYS_wait, pid, store);
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}
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int
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sys_yield(void) {
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return syscall(SYS_yield);
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}
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int
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sys_kill(int pid) {
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return syscall(SYS_kill, pid);
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}
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int
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sys_getpid(void) {
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return syscall(SYS_getpid);
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}
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int
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sys_putc(int c) {
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return syscall(SYS_putc, c);
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}
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int
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sys_pgdir(void) {
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return syscall(SYS_pgdir);
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}
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int
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sys_gettime(void) {
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return syscall(SYS_gettime);
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}
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void
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sys_lab6_set_priority(uint32_t priority)
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{
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syscall(SYS_lab6_set_priority, priority);
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}
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