static int
dump_sem_info(int argc, char **argv)
{
bool found = false;
addr_t num;
int32 i;
if (argc < 2) {
print_debugger_command_usage(argv[0]);
return 0;
}
num = strtoul(argv[1], NULL, 0);
if (IS_KERNEL_ADDRESS(num)) {
dump_sem((struct sem_entry *)num);
return 0;
} else if (num >= 0) {
uint32 slot = num % sMaxSems;
if (sSems[slot].id != (int)num) {
kprintf("sem %ld (%#lx) doesn't exist!\n", num, num);
return 0;
}
dump_sem(&sSems[slot]);
return 0;
}
// walk through the sem list, trying to match name
for (i = 0; i < sMaxSems; i++) {
if (sSems[i].u.used.name != NULL
&& strcmp(argv[1], sSems[i].u.used.name) == 0) {
dump_sem(&sSems[i]);
found = true;
}
}
if (!found)
kprintf("sem \"%s\" doesn't exist!\n", argv[1]);
return 0;
}
void do_read(char *buf){
int ret;
char *p;
struct sem sem;
/* read something */
if((p = strchr(buf, ' ')) == NULL){
printf("r must take an index argument\n");
return;
}
p++;
idx = atoi(p);
ret = read_sem(&sem);
if(ret < 0)
return;
printf("Index %d:\n", idx);
if((p = strchr(p, '.')) == NULL){
dump_sem(&sem);
dump_hex(&sem, sizeof(sem));
}
else{
p++;
if(strstr(p, "val"))
printf("val = %d (%.04x)\n",
sem.semval, sem.semval);
if(strstr(p, "pid"))
printf("pid = %d (%.08x)\n",
sem.sempid, sem.sempid);
if(strstr(p, "ncnt"))
printf("ncnt = %d (%.04x)\n",
sem.semncnt, sem.semncnt);
if(strstr(p, "zcnt"))
printf("zcnt = %d (%.04x)\n",
sem.semzcnt, sem.semzcnt);
}
}
