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Blackfin: make hardware trace output a little more useful

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Decode the vast majority of insns that appear in the trace buffer to get a
better idea of what's going on at a glance.

Signed-off-by: Robin Getz <robin.getz@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
This commit is contained in:
Robin Getz
2010-03-15 17:42:07 +00:00
committed by Mike Frysinger
parent d60805ad47
commit 9a95e2f100
4 changed files with 447 additions and 68 deletions
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15
arch/blackfin/kernel/dumpstack.c
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@@ -18,21 +18,14 @@
*/
static bool is_bfin_call(unsigned short *addr)
{
unsigned short opcode = 0, *ins_addr;
ins_addr = (unsigned short *)addr;
unsigned int opcode;
if (!get_instruction(&opcode, ins_addr))
if (!get_instruction(&opcode, addr))
return false;
if ((opcode >= 0x0060 && opcode <= 0x0067) ||
(opcode >= 0x0070 && opcode <= 0x0077))
return true;
ins_addr--;
if (!get_instruction(&opcode, ins_addr))
return false;
if (opcode >= 0xE300 && opcode <= 0xE3FF)
(opcode >= 0x0070 && opcode <= 0x0077) ||
(opcode >= 0xE3000000 && opcode <= 0xE3FFFFFF))
return true;
return false;