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[Blackfin] arch: fix bug gdb testing on hardware has regression 

http://blackfin.uclinux.org/gf/project/toolchain/tracker/?action=TrackerItemEdit&tracker_item_id=3651

As Bernd predicted, this was only necessary because of other
problems in the kenel - fixing those, and this is not necessary, so
remove it.

Signed-off-by: Robin Getz <robin.getz@analog.com>
Signed-off-by: Bryan Wu <bryan.wu@analog.com>
This commit is contained in:
Robin Getz 2007-12-24 15:27:56 +08:00 committed by Bryan Wu
parent 13fe24f37d
commit d8f66c8c1e
1 changed files with 30 additions and 7 deletions
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37
arch/blackfin/kernel/traps.c
View File

@ -36,6 +36,7 @@
#include <asm/cacheflush.h>
#include <asm/blackfin.h>
#include <asm/irq_handler.h>
#include <linux/irq.h>
#include <asm/trace.h>
#include <asm/fixed_code.h>
@ -508,13 +509,6 @@ asmlinkage void trap_c(struct pt_regs *fp)
info.si_addr = (void *)fp->pc;
force_sig_info(sig, &info, current);
/* Ensure that bad return addresses don't end up in an infinite
* loop, due to speculative loads/reads. This needs to be done after
* the signal has been sent.
*/
if (trapnr == VEC_CPLB_I_M && sig != SIGTRAP)
fp->pc = SAFE_USER_INSTRUCTION;
trace_buffer_restore(j);
return;
}
@ -727,6 +721,9 @@ void dump_bfin_mem(void *retaddr)
void show_regs(struct pt_regs *fp)
{
char buf [150];
struct irqaction *action;
unsigned int i;
unsigned long flags;
printk(KERN_NOTICE "\n" KERN_NOTICE "SEQUENCER STATUS:\n");
printk(KERN_NOTICE " SEQSTAT: %08lx IPEND: %04lx SYSCFG: %04lx\n",
@ -735,6 +732,32 @@ void show_regs(struct pt_regs *fp)
(fp->seqstat & SEQSTAT_HWERRCAUSE) >> 14);
printk(KERN_NOTICE " EXCAUSE : 0x%lx\n",
fp->seqstat & SEQSTAT_EXCAUSE);
for (i = 6; i <= 15 ; i++) {
if (fp->ipend & (1 << i)) {
decode_address(buf, bfin_read32(EVT0 + 4*i));
printk(KERN_NOTICE " physical IVG%i asserted : %s\n", i, buf);
}
}
/* if no interrupts are going off, don't print this out */
if (fp->ipend & ~0x3F) {
for (i = 0; i < (NR_IRQS - 1); i++) {
spin_lock_irqsave(&irq_desc[i].lock, flags);
action = irq_desc[i].action;
if (!action)
goto unlock;
decode_address(buf, (unsigned int)action->handler);
printk(KERN_NOTICE " logical irq %3d mapped : %s", i, buf);
for (action = action->next; action; action = action->next) {
decode_address(buf, (unsigned int)action->handler);
printk(", %s", buf);
}
printk("\n");
unlock:
spin_unlock_irqrestore(&irq_desc[i].lock, flags);
}
}
decode_address(buf, fp->rete);
printk(KERN_NOTICE " RETE: %s\n", buf);