100 lines
1.9 KiB
C
100 lines
1.9 KiB
C
|
/*
|
||
|
|
* Copyright 2003 PathScale, Inc.
|
||
|
|
*
|
||
|
|
* Licensed under the GPL
|
||
|
|
*/
|
||
|
|
|
||
|
|
#include "linux/sched.h"
|
||
|
|
#include "linux/errno.h"
|
||
|
|
#include "asm/system.h"
|
||
|
|
#include "asm/pda.h"
|
||
|
|
#include "sysdep/ptrace.h"
|
||
|
|
#include "os.h"
|
||
|
|
|
||
|
|
void arch_init_thread(void)
|
||
|
|
{
|
||
|
|
}
|
||
|
|
|
||
|
|
void arch_check_bugs(void)
|
||
|
|
{
|
||
|
|
}
|
||
|
|
|
||
|
|
int arch_handle_signal(int sig, union uml_pt_regs *regs)
|
||
|
|
{
|
||
|
|
return(0);
|
||
|
|
}
|
||
|
|
|
||
|
|
#define MAXTOKEN 64
|
||
|
|
|
||
|
|
/* Set during early boot */
|
||
|
|
int host_has_cmov = 1;
|
||
|
|
int host_has_xmm = 0;
|
||
|
|
|
||
|
|
static char token(int fd, char *buf, int len, char stop)
|
||
|
|
{
|
||
|
|
int n;
|
||
|
|
char *ptr, *end, c;
|
||
|
|
|
||
|
|
ptr = buf;
|
||
|
|
end = &buf[len];
|
||
|
|
do {
|
||
|
|
n = os_read_file(fd, ptr, sizeof(*ptr));
|
||
|
|
c = *ptr++;
|
||
|
|
if(n != sizeof(*ptr)){
|
||
|
|
if(n == 0) return(0);
|
||
|
|
printk("Reading /proc/cpuinfo failed, err = %d\n", -n);
|
||
|
|
if(n < 0)
|
||
|
|
return(n);
|
||
|
|
else
|
||
|
|
return(-EIO);
|
||
|
|
}
|
||
|
|
} while((c != '\n') && (c != stop) && (ptr < end));
|
||
|
|
|
||
|
|
if(ptr == end){
|
||
|
|
printk("Failed to find '%c' in /proc/cpuinfo\n", stop);
|
||
|
|
return(-1);
|
||
|
|
}
|
||
|
|
*(ptr - 1) = '\0';
|
||
|
|
return(c);
|
||
|
|
}
|
||
|
|
|
||
|
|
static int find_cpuinfo_line(int fd, char *key, char *scratch, int len)
|
||
|
|
{
|
||
|
|
int n;
|
||
|
|
char c;
|
||
|
|
|
||
|
|
scratch[len - 1] = '\0';
|
||
|
|
while(1){
|
||
|
|
c = token(fd, scratch, len - 1, ':');
|
||
|
|
if(c <= 0)
|
||
|
|
return(0);
|
||
|
|
else if(c != ':'){
|
||
|
|
printk("Failed to find ':' in /proc/cpuinfo\n");
|
||
|
|
return(0);
|
||
|
|
}
|
||
|
|
|
||
|
|
if(!strncmp(scratch, key, strlen(key)))
|
||
|
|
return(1);
|
||
|
|
|
||
|
|
do {
|
||
|
|
n = os_read_file(fd, &c, sizeof(c));
|
||
|
|
if(n != sizeof(c)){
|
||
|
|
printk("Failed to find newline in "
|
||
|
|
"/proc/cpuinfo, err = %d\n", -n);
|
||
|
|
return(0);
|
||
|
|
}
|
||
|
|
} while(c != '\n');
|
||
|
|
}
|
||
|
|
return(0);
|
||
|
|
}
|
||
|
|
|
||
|
|
/* Overrides for Emacs so that we follow Linus's tabbing style.
|
||
|
|
* Emacs will notice this stuff at the end of the file and automatically
|
||
|
|
* adjust the settings for this buffer only. This must remain at the end
|
||
|
|
* of the file.
|
||
|
|
* ---------------------------------------------------------------------------
|
||
|
|
* Local variables:
|
||
|
|
* c-file-style: "linux"
|
||
|
|
* End:
|
||
|
|
*/
|