From: Po-Yu Chuang <ratbert@xxxxxxxxxxxxxxxx>
Some architectures like ARM place __init_end before .text section.
If any function in .init section is hit while profiling, readprofile
stops at __init_end. That means if we enable profiling at boot time,
the profiler probably hits init functions and readprofile does not
work well unless we reset profiling buffer with -r option.
Signed-off-by: Po-Yu Chuang <ratbert@xxxxxxxxxxxxxxxx>
---
sys-utils/readprofile.c | 6 ++++--
1 files changed, 4 insertions(+), 2 deletions(-)
diff --git a/sys-utils/readprofile.c b/sys-utils/readprofile.c
index 91ff329..174f9aa 100644
--- a/sys-utils/readprofile.c
+++ b/sys-utils/readprofile.c
@@ -323,8 +323,10 @@ main(int argc, char **argv) {
done = 1;
else {
/* ignore any LEADING (before a '[tT]' symbol is found)
- Absolute symbols */
- if ((*mode == 'A' || *mode == '?') && total == 0)
+ Absolute symbols and __init_end because some
+ architectures place it before .text section */
+ if ((*mode == 'A' || *mode == '?')
+ && (total == 0 || !strcmp(next_name, "__init_end")))
continue;
if (*mode != 'T' && *mode != 't' &&
*mode != 'W' && *mode != 'w')
--
1.6.3.3
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