diff options
| author | Rander Wang <[email protected]> | 2023-09-19 12:24:08 +0300 |
|---|---|---|
| committer | Mark Brown <[email protected]> | 2023-09-19 13:48:44 +0100 |
| commit | 58bb5081cba130f12c26d8e4d5e9416a0272f07e (patch) | |
| tree | 45f7a64ad635d76f7bdc4525955cc24a38736ce9 | |
| parent | 88e20c1f8c1c0018a2dad50b991b87ef028b9c1c (diff) | |
ASoC: SOF: Xtensa: dump ar registers to restore call stack
On Xtensa platform ar0 is for caller address and ar1 is for stack
address. The ar register dump can be used to rebuild call stack with
FW elf file by debug tools.
Signed-off-by: Rander Wang <[email protected]>
Reviewed-by: Péter Ujfalusi <[email protected]>
Reviewed-by: Kai Vehmanen <[email protected]>
Reviewed-by: Pierre-Louis Bossart <[email protected]>
Reviewed-by: Guennadi Liakhovetski <[email protected]>
Signed-off-by: Peter Ujfalusi <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Mark Brown <[email protected]>
| -rw-r--r-- | sound/soc/sof/xtensa/core.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/sound/soc/sof/xtensa/core.c b/sound/soc/sof/xtensa/core.c index bebbe3a2865c..7c91a919eadc 100644 --- a/sound/soc/sof/xtensa/core.c +++ b/sound/soc/sof/xtensa/core.c @@ -132,6 +132,17 @@ static void xtensa_stack(struct snd_sof_dev *sdev, const char *level, void *oops buf, sizeof(buf), false); dev_printk(level, sdev->dev, "0x%08x: %s\n", stack_ptr + i * 4, buf); } + + if (!xoops->plat_hdr.numaregs) + return; + + dev_printk(level, sdev->dev, "AR registers:\n"); + /* the number of ar registers is a multiple of 4 */ + for (i = 0; i < xoops->plat_hdr.numaregs; i += 4) { + hex_dump_to_buffer(xoops->ar + i, 16, 16, 4, + buf, sizeof(buf), false); + dev_printk(level, sdev->dev, "%#x: %s\n", i * 4, buf); + } } const struct dsp_arch_ops sof_xtensa_arch_ops = { |