#include <linux/kexec.h>
#include <linux/limits.h>
#include <linux/proc_fs.h>
+#include <linux/sysfs.h>
#include <asm/system.h>
#include <asm/uaccess.h>
#include <asm/fpu.h>
static unsigned long se_user;
static unsigned long se_sys;
-static unsigned long se_skipped;
static unsigned long se_half;
static unsigned long se_word;
static unsigned long se_dword;
/* bitfield: 1: warn 2: fixup 4: signal -> combinations 2|4 && 1|2|4 are not
valid! */
static int se_usermode = 3;
-/* 0: no warning 1: print a warning message */
-static int se_kernmode_warn = 1;
+/* 0: no warning 1: print a warning message, disabled by default */
+static int se_kernmode_warn;
#ifdef CONFIG_PROC_FS
static const char *se_usermode_action[] = {
p += sprintf(p, "User:\t\t%lu\n", se_user);
p += sprintf(p, "System:\t\t%lu\n", se_sys);
- p += sprintf(p, "Skipped:\t%lu\n", se_skipped);
p += sprintf(p, "Half:\t\t%lu\n", se_half);
p += sprintf(p, "Word:\t\t%lu\n", se_word);
p += sprintf(p, "DWord:\t\t%lu\n", se_dword);
oops_enter();
- console_verbose();
spin_lock_irq(&die_lock);
+ console_verbose();
bust_spinlocks(1);
printk("%s: %04lx [#%d]\n", str, err & 0xffff, ++die_counter);
-
+ sysfs_printk_last_file();
print_modules();
show_regs(regs);
bust_spinlocks(0);
add_taint(TAINT_DIE);
spin_unlock_irq(&die_lock);
+ oops_exit();
if (kexec_should_crash(current))
crash_kexec(regs);
if (panic_on_oops)
panic("Fatal exception");
- oops_exit();
do_exit(SIGSEGV);
}
u_int rm;
int ret, index;
+ /*
+ * XXX: We can't handle mixed 16/32-bit instructions yet
+ */
+ if (instruction_size(instruction) != 2)
+ return -EINVAL;
+
index = (instruction>>8)&15; /* 0x0F00 */
rm = regs->regs[index];
se_user += 1;
-#ifndef CONFIG_CPU_SH2A
set_fs(USER_DS);
- if (copy_from_user(&instruction, (u16 *)(regs->pc & ~1), 2)) {
+ if (copy_from_user(&instruction, (insn_size_t *)(regs->pc & ~1),
+ sizeof(instruction))) {
set_fs(oldfs);
goto uspace_segv;
}
"in \"%s\" pid=%d pc=0x%p ins=0x%04hx\n",
current->comm, current->pid, (void *)regs->pc,
instruction);
-#endif
if (se_usermode & 2)
goto fixup;
} else {
se_sys += 1;
- if (se_kernmode_warn)
- printk(KERN_NOTICE "Unaligned kernel access "
- "on behalf of \"%s\" pid=%d pc=0x%p ins=0x%04hx\n",
- current->comm, current->pid, (void *)regs->pc,
- instruction);
-
if (regs->pc & 1)
die("unaligned program counter", regs, error_code);
die("insn faulting in do_address_error", regs, 0);
}
+ if (se_kernmode_warn)
+ printk(KERN_NOTICE "Unaligned kernel access "
+ "on behalf of \"%s\" pid=%d pc=0x%p ins=0x%04hx\n",
+ current->comm, current->pid, (void *)regs->pc,
+ instruction);
+
handle_unaligned_access(instruction, regs,
&user_mem_access, 0);
set_fs(oldfs);