Em Thu, Jun 03, 2010 at 03:06:13PM -0300, Arnaldo Carvalho de Melo escreveu:
> For instance, here using -vvv I get:
>
> [r...@emilia ~]# perf annotate -vvv memcpy > /dev/null
> build id event received for [kernel.kallsyms]:
> 310920b54cbbf242dbfa09052f652806d2c73821
> build id event received for /lib64/libtinfo.so.5.7:
> cd9da7b5b1fcb25ee6b3762bb9fe62f782590fd5
> Looking at the vmlinux_path (6 entries long)
> No build_id in
> /root/.debug/.build-id/31/0920b54cbbf242dbfa09052f652806d2c73821, ignoring it
> No build_id in vmlinux, ignoring it
> No build_id in /boot/vmlinux, ignoring it
> No build_id in /boot/vmlinux-2.6.35-rc1, ignoring it
> Using /lib/modules/2.6.35-rc1/build/vmlinux for symbols
> hist_entry__inc_addr_samples: ip=0xffffffff811ea69e
> 0xffffffff811ea690 memcpy: period++ [ip: 0xffffffff811ea69e, 0xe] => 1
> hist_entry__annotate: filename=/lib/modules/2.6.35-rc1/build/vmlinux,
> sym=memcpy, start=0xffffffff811ea690, end=0xffffffff811ea730
> annotating [0x187e770] /lib/modules/2.6.35-rc1/build/vmlinux : [0x19b1f70]
> memcpy
> Executing: objdump --start-address=0xffffffff811ea690
> --stop-address=0xffffffff811ea730 -dS
> /lib/modules/2.6.35-rc1/build/vmlinux|grep -v
> /lib/modules/2.6.35-rc1/build/vmlinux|expand
> [r...@emilia ~]#
>
> I'm removing all vmlinux from the path so that I can reproduce what you see.
[r...@emilia ~]# mv /lib/modules/2.6.35-rc1/build/vmlinux
/lib/modules/2.6.35-rc1/build/vmlinux.OFF
[r...@emilia ~]# perf annotate -vvv memcpy > /dev/null
build id event received for [kernel.kallsyms]:
310920b54cbbf242dbfa09052f652806d2c73821
build id event received for /lib64/libtinfo.so.5.7:
cd9da7b5b1fcb25ee6b3762bb9fe62f782590fd5
Looking at the vmlinux_path (6 entries long)
No build_id in
/root/.debug/.build-id/31/0920b54cbbf242dbfa09052f652806d2c73821, ignoring it
No build_id in vmlinux, ignoring it
No build_id in /boot/vmlinux, ignoring it
No build_id in /boot/vmlinux-2.6.35-rc1, ignoring it
No build_id in /lib/modules/2.6.35-rc1/build/vmlinux, ignoring it
No build_id in /usr/lib/debug/lib/modules/2.6.35-rc1/vmlinux, ignoring it
Using /proc/kallsyms for symbols
[r...@emilia ~]#
[r...@emilia ~]# vi ~/.perfconfig
[r...@emilia ~]# cat ~/.perfconfig
[tui]
report = on
annotate = off
[r...@emilia ~]# perf annotate memcpy
[r...@emilia ~]# perf annotate memcpy
[r...@emilia ~]# perf annotate -k vmlinux memcpy
[kernel.kallsyms] with build id 310920b54cbbf242dbfa09052f652806d2c73821 not
found, continuing without symbols
Yeah, these error messages suckz, will work on having proper messages
for these cases :-\
- Arnaldo
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