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| author | Steven Rostedt <rostedt@goodmis.org> | 2024-10-22 19:36:28 +0000 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2025-05-02 07:50:37 +0200 |
| commit | e13358c4884d9e824462232f86655bbb8c06cb30 (patch) | |
| tree | da2c83681cbab337e875aca16a8fc117d394d45f /include/trace | |
| parent | 896e30f76840c9cc196927ee69109745fb23d499 (diff) | |
| download | linux-e13358c4884d9e824462232f86655bbb8c06cb30.tar.gz linux-e13358c4884d9e824462232f86655bbb8c06cb30.tar.bz2 linux-e13358c4884d9e824462232f86655bbb8c06cb30.zip | |
tracing: Add __print_dynamic_array() helper
[ Upstream commit e52750fb1458ae9ea5860a08ed7a149185bc5b97 ]
When printing a dynamic array in a trace event, the method is rather ugly.
It has the format of:
__print_array(__get_dynamic_array(array),
__get_dynmaic_array_len(array) / el_size, el_size)
Since dynamic arrays are known to the tracing infrastructure, create a
helper macro that does the above for you.
__print_dynamic_array(array, el_size)
Which would expand to the same output.
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
Signed-off-by: Avadhut Naik <avadhut.naik@amd.com>
Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de>
Reviewed-by: Qiuxu Zhuo <qiuxu.zhuo@intel.com>
Link: https://lore.kernel.org/r/20241022194158.110073-3-avadhut.naik@amd.com
Stable-dep-of: ea8d7647f9dd ("tracing: Verify event formats that have "%*p.."")
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'include/trace')
| -rw-r--r-- | include/trace/stages/stage3_trace_output.h | 8 | ||||
| -rw-r--r-- | include/trace/stages/stage7_class_define.h | 1 |
2 files changed, 9 insertions, 0 deletions
diff --git a/include/trace/stages/stage3_trace_output.h b/include/trace/stages/stage3_trace_output.h index c1fb1355d309..1e7b0bef95f5 100644 --- a/include/trace/stages/stage3_trace_output.h +++ b/include/trace/stages/stage3_trace_output.h @@ -119,6 +119,14 @@ trace_print_array_seq(p, array, count, el_size); \ }) +#undef __print_dynamic_array +#define __print_dynamic_array(array, el_size) \ + ({ \ + __print_array(__get_dynamic_array(array), \ + __get_dynamic_array_len(array) / (el_size), \ + (el_size)); \ + }) + #undef __print_hex_dump #define __print_hex_dump(prefix_str, prefix_type, \ rowsize, groupsize, buf, len, ascii) \ diff --git a/include/trace/stages/stage7_class_define.h b/include/trace/stages/stage7_class_define.h index bcb960d16fc0..fcd564a590f4 100644 --- a/include/trace/stages/stage7_class_define.h +++ b/include/trace/stages/stage7_class_define.h @@ -22,6 +22,7 @@ #undef __get_rel_cpumask #undef __get_rel_sockaddr #undef __print_array +#undef __print_dynamic_array #undef __print_hex_dump #undef __get_buf |