在 12/13/2018 2:15 PM, rander.wang 写道:
在 12/12/2018 8:00 AM, Pierre-Louis Bossart 写道:
On 12/11/18 5:08 PM, Andy Shevchenko wrote:
On Tue, Dec 11, 2018 at 03:23:17PM -0600, Pierre-Louis Bossart wrote:
Add common directory for xtensa architecture
+ for (i = 0; i <= stack_words - 4; i += 4) {
+ dev_err(sdev->dev, "0x%8.8x: 0x%8.8x 0x%8.8x 0x%8.8x
0x%8.8x\n",
+ stack_ptr + i, stack[i], stack[i + 1], stack[i + 2],
+ stack[i + 3]);
+ }
+
+ /* deal with any remaining words */
+ switch (stack_words - i) {
+ case 0:
+ break;
+ case 1:
+ dev_err(sdev->dev, "0x%8.8x: 0x%8.8x\n",
+ stack_ptr + stack_words - 1, stack[stack_words - 1]);
+ break;
+ case 2:
+ dev_err(sdev->dev, "0x%8.8x: 0x%8.8x 0x%8.8x\n",
+ stack_ptr + stack_words - 2, stack[stack_words - 2],
+ stack[stack_words - 1]);
+ break;
+ case 3:
+ dev_err(sdev->dev, "0x%8.8x: 0x%8.8x 0x%8.8x 0x%8.8x\n",
+ stack_ptr + stack_words - 3, stack[stack_words - 3],
+ stack[stack_words - 2], stack[stack_words - 1]);
+ break;
+ default:
+ break;
+ }
hex_dump_to_buffer().
I vaguely recall there was a reason not to do it, we'll relook at this.
we don't want to convert a blob of data to "hex ASCII" in memory
(hex_dump_to_buffer).
Here, we just want to dump the content of call stack, like:
[ 3.250628] sof-audio sof-audio: 0x0049fbb0: 0x8000f2d0 0x0049fc00
0x6f6c6c61 0x00632e63
[ 3.250670] sof-audio sof-audio: 0x0049fbb4: 0x00ffffff 0x0010b5d4
0x00000000 0x2000004c
[ 3.250710] sof-audio sof-audio: 0x0049fbb8: 0x0040d000 0x00000000
0x0000024c 0x2000930c
[ 3.250747] sof-audio sof-audio: 0x0049fbbc: 0x8000454c 0x0049fc30
0x00401e20 0x00000001
[ 3.250787] sof-audio sof-audio: 0x0049fbc0: 0x8000454c 0x0049fc30
0x00401e20 0x00000001
[ 3.250827] sof-audio sof-audio: 0x0049fbc4: 0x00000000 0x00000001
0x00000010 0x0049fcb8
[ 3.250865] sof-audio sof-audio: 0x0049fbc8: 0x0040a000 0x00401e98
0x00000001 0x00000002
[ 3.250889] sof-audio sof-audio: 0x0049fbcc: 0x80005ac5 0x0049fc60
0x00000000 0x00000000
Add more details: we use another tool to analysis the hex numbers with a
ELF file to get the correct information, so we do it by ourself.
Thanks!
Rander
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