*
*/
-#include <linux/config.h>
#include <linux/kernel.h>
#include <linux/module.h>
#include <asm/uaccess.h>
"\tldil L%%" #lbl ", %%r1\n" \
"\tldo R%%" #lbl "(%%r1), %%r1\n" \
"\tbv,n %%r0(%%r1)\n"
+/* If you use FIXUP_BRANCH, then you must list this clobber */
+#define FIXUP_BRANCH_CLOBBER "r1"
/* 1111 1100 0000 0000 0001 0011 1100 0000 */
#define OPCODE1(a,b,c) ((a)<<26|(b)<<12|(c)<<6)
#define ERR_NOTHANDLED -1
#define ERR_PAGEFAULT -2
-int unaligned_enabled = 1;
+int unaligned_enabled __read_mostly = 1;
void die_if_kernel (char *str, struct pt_regs *regs, long err);
" .previous\n"
: "=r" (val), "=r" (ret)
: "0" (val), "r" (saddr), "r" (regs->isr)
- : "r20" );
+ : "r20", FIXUP_BRANCH_CLOBBER );
DPRINTF("val = 0x" RFMT "\n", val);
" .previous\n"
: "=r" (val), "=r" (ret)
: "0" (val), "r" (saddr), "r" (regs->isr)
- : "r19", "r20" );
+ : "r19", "r20", FIXUP_BRANCH_CLOBBER );
DPRINTF("val = 0x" RFMT "\n", val);
" .previous\n"
: "=r" (val), "=r" (ret)
: "0" (val), "r" (saddr), "r" (regs->isr)
- : "r19", "r20" );
+ : "r19", "r20", FIXUP_BRANCH_CLOBBER );
#else
{
unsigned long valh=0,vall=0;
" .previous\n"
: "=r" (valh), "=r" (vall), "=r" (ret)
: "0" (valh), "1" (vall), "r" (saddr), "r" (regs->isr)
- : "r19", "r20" );
+ : "r19", "r20", FIXUP_BRANCH_CLOBBER );
val=((__u64)valh<<32)|(__u64)vall;
}
#endif
" .previous\n"
: "=r" (ret)
: "r" (val), "r" (regs->ior), "r" (regs->isr)
- : "r19" );
+ : "r19", FIXUP_BRANCH_CLOBBER );
return ret;
}
" .previous\n"
: "=r" (ret)
: "r" (val), "r" (regs->ior), "r" (regs->isr)
- : "r19", "r20", "r21", "r22", "r1" );
+ : "r19", "r20", "r21", "r22", "r1", FIXUP_BRANCH_CLOBBER );
return 0;
}
" .previous\n"
: "=r" (ret)
: "r" (val), "r" (regs->ior), "r" (regs->isr)
- : "r19", "r20", "r21", "r22", "r1" );
+ : "r19", "r20", "r21", "r22", "r1", FIXUP_BRANCH_CLOBBER );
#else
{
unsigned long valh=(val>>32),vall=(val&0xffffffffl);
" .previous\n"
: "=r" (ret)
: "r" (valh), "r" (vall), "r" (regs->ior), "r" (regs->isr)
- : "r19", "r20", "r21", "r1" );
+ : "r19", "r20", "r21", "r1", FIXUP_BRANCH_CLOBBER );
}
#endif
register int flop=0; /* true if this is a flop */
/* log a message with pacing */
- if (user_mode(regs))
- {
- if (unaligned_count > 5 && jiffies - last_time > 5*HZ)
- {
+ if (user_mode(regs)) {
+ if (current->thread.flags & PARISC_UAC_SIGBUS) {
+ goto force_sigbus;
+ }
+
+ if (unaligned_count > 5 && jiffies - last_time > 5*HZ) {
unaligned_count = 0;
last_time = jiffies;
}
- if (++unaligned_count < 5)
- {
+
+ if (!(current->thread.flags & PARISC_UAC_NOPRINT)
+ && ++unaligned_count < 5) {
char buf[256];
sprintf(buf, "%s(%d): unaligned access to 0x" RFMT " at ip=0x" RFMT "\n",
current->comm, current->pid, regs->ior, regs->iaoq[0]);
show_regs(regs);
#endif
}
+
if (!unaligned_enabled)
goto force_sigbus;
}