Re: how to use perf annotate on the kernel

[Arnaldo Carvalho de Melo]

Em Thu, Jun 03, 2010 at 08:18:04PM +0200, Stephane Eranian escreveu:
> perf annotate __lock_acquire -k /home/eranian/perfmon/official/tip/build/vmlinux
> build id event received for [kernel.kallsyms]:
> 5c110a704293a259fbe11158dc1b25107ad7a23e
> build id event received for
> /lib/modules/2.6.35-rc1-tip/kernel/arch/x86/kernel/cpu/cpufreq/mperf.ko:
> cb5
> build id event received for
> /lib/modules/2.6.35-rc1-tip/kernel/drivers/cpufreq/cpufreq_ondemand.ko:
> cdb5
> Using /home/eranian/perfmon/official/tip/build/vmlinux for symbols
> hist_entry__inc_addr_samples: ip=0xffffffff81073b36
> 0xffffffff81073b30 __lock_acquire: period++ [ip: 0xffffffff81073b36, 0x6] => 1
> hist_entry__inc_addr_samples: ip=0xffffffff81073c94
> 
> But in the end I get:
> objdump: '[kernel.kallsyms]': No such file

Reproduced, working on it now. I've been testing only with vmlinux in
the path it searches for, not by directly specifying it, will get that
fixed, thanks,

- Arnaldo
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