1 files changed, 0 insertions, 222 deletions
diff --git a/arch/um/sys-i386/bugs.c b/arch/um/sys-i386/bugs.c
deleted file mode 100644
index 41b0ab2fe83..00000000000
--- a/arch/um/sys-i386/bugs.c
+++ /dev/null
@@ -1,222 +0,0 @@
-/* 
- * Copyright (C) 2002 Jeff Dike (jdike@karaya.com)
- * Licensed under the GPL
- */
-
-#include <unistd.h>
-#include <errno.h>
-#include <string.h>
-#include <sys/signal.h>
-#include <asm/ldt.h>
-#include "kern_util.h"
-#include "user.h"
-#include "sysdep/ptrace.h"
-#include "task.h"
-#include "os.h"
-
-#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);
-}
-
-int cpu_feature(char *what, char *buf, int len)
-{
-	int fd, ret = 0;
-
-	fd = os_open_file("/proc/cpuinfo", of_read(OPENFLAGS()), 0);
-	if(fd < 0){
-		printk("Couldn't open /proc/cpuinfo, err = %d\n", -fd);
-		return(0);
-	}
-
-	if(!find_cpuinfo_line(fd, what, buf, len)){
-		printk("Couldn't find '%s' line in /proc/cpuinfo\n", what);
-		goto out_close;
-	}
-
-	token(fd, buf, len, '\n');
-	ret = 1;
-
- out_close:
-	os_close_file(fd);
-	return(ret);
-}
-
-static int check_cpu_flag(char *feature, int *have_it)
-{
-	char buf[MAXTOKEN], c;
-	int fd, len = sizeof(buf)/sizeof(buf[0]);
-
-	printk("Checking for host processor %s support...", feature);
-	fd = os_open_file("/proc/cpuinfo", of_read(OPENFLAGS()), 0);
-	if(fd < 0){
-		printk("Couldn't open /proc/cpuinfo, err = %d\n", -fd);
-		return(0);
-	}
-
-	*have_it = 0;
-	if(!find_cpuinfo_line(fd, "flags", buf, sizeof(buf) / sizeof(buf[0])))
-		goto out;
-
-	c = token(fd, buf, len - 1, ' ');
-	if(c < 0) goto out;
-	else if(c != ' '){
-		printk("Failed to find ' ' in /proc/cpuinfo\n");
-		goto out;
-	}
-
-	while(1){
-		c = token(fd, buf, len - 1, ' ');
-		if(c < 0) goto out;
-		else if(c == '\n') break;
-
-		if(!strcmp(buf, feature)){
-			*have_it = 1;
-			goto out;
-		}
-	}
- out:
-	if(*have_it == 0) printk("No\n");
-	else if(*have_it == 1) printk("Yes\n");
-	os_close_file(fd);
-	return(1);
-}
-
-#if 0 /* This doesn't work in tt mode, plus it's causing compilation problems
-       * for some people.
-       */
-static void disable_lcall(void)
-{
-	struct modify_ldt_ldt_s ldt;
-	int err;
-
-	bzero(&ldt, sizeof(ldt));
-	ldt.entry_number = 7;
-	ldt.base_addr = 0;
-	ldt.limit = 0;
-	err = modify_ldt(1, &ldt, sizeof(ldt));
-	if(err)
-		printk("Failed to disable lcall7 - errno = %d\n", errno);
-}
-#endif
-
-void arch_init_thread(void)
-{
-#if 0
-	disable_lcall();
-#endif
-}
-
-void arch_check_bugs(void)
-{
-	int have_it;
-
-	if(os_access("/proc/cpuinfo", OS_ACC_R_OK) < 0){
-		printk("/proc/cpuinfo not available - skipping CPU capability "
-		       "checks\n");
-		return;
-	}
-	if(check_cpu_flag("cmov", &have_it))
-		host_has_cmov = have_it;
-	if(check_cpu_flag("xmm", &have_it))
-		host_has_xmm = have_it;
-}
-
-int arch_handle_signal(int sig, union uml_pt_regs *regs)
-{
-	unsigned char tmp[2];
-
-	/* This is testing for a cmov (0x0f 0x4x) instruction causing a
-	 * SIGILL in init.
-	 */
-	if((sig != SIGILL) || (TASK_PID(get_current()) != 1)) return(0);
-
-	if (copy_from_user_proc(tmp, (void *) UPT_IP(regs), 2))
-		panic("SIGILL in init, could not read instructions!\n");
-	if((tmp[0] != 0x0f) || ((tmp[1] & 0xf0) != 0x40))
-		return(0);
-
-	if(host_has_cmov == 0)
-		panic("SIGILL caused by cmov, which this processor doesn't "
-		      "implement, boot a filesystem compiled for older "
-		      "processors");
-	else if(host_has_cmov == 1)
-		panic("SIGILL caused by cmov, which this processor claims to "
-		      "implement");
-	else if(host_has_cmov == -1)
-		panic("SIGILL caused by cmov, couldn't tell if this processor "
-		      "implements it, boot a filesystem compiled for older "
-		      "processors");
-	else panic("Bad value for host_has_cmov (%d)", host_has_cmov);
-	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:
- */