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| author | Ananth N Mavinakayanahalli <ananth@in.ibm.com> | 2012-08-23 21:31:32 +0000 |
|---|---|---|
| committer | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2012-09-05 15:35:19 +1000 |
| commit | 8b7b80b9ebb46dd88fbb94e918297295cf312b59 (patch) | |
| tree | 9904b4440bbe1adc7c9dc3848814d15bf80b518d /arch/powerpc/Kconfig | |
| parent | 41ab5266c3622354353433618edb92ab278025fa (diff) | |
| download | lwn-8b7b80b9ebb46dd88fbb94e918297295cf312b59.tar.gz lwn-8b7b80b9ebb46dd88fbb94e918297295cf312b59.zip | |
powerpc: Uprobes port to powerpc
This is the port of uprobes to powerpc. Usage is similar to x86.
[root@xxxx ~]# ./bin/perf probe -x /lib64/libc.so.6 malloc
Added new event:
probe_libc:malloc (on 0xb4860)
You can now use it in all perf tools, such as:
perf record -e probe_libc:malloc -aR sleep 1
[root@xxxx ~]# ./bin/perf record -e probe_libc:malloc -aR sleep 20
[ perf record: Woken up 22 times to write data ]
[ perf record: Captured and wrote 5.843 MB perf.data (~255302 samples) ]
[root@xxxx ~]# ./bin/perf report --stdio
...
69.05% tar libc-2.12.so [.] malloc
28.57% rm libc-2.12.so [.] malloc
1.32% avahi-daemon libc-2.12.so [.] malloc
0.58% bash libc-2.12.so [.] malloc
0.28% sshd libc-2.12.so [.] malloc
0.08% irqbalance libc-2.12.so [.] malloc
0.05% bzip2 libc-2.12.so [.] malloc
0.04% sleep libc-2.12.so [.] malloc
0.03% multipathd libc-2.12.so [.] malloc
0.01% sendmail libc-2.12.so [.] malloc
0.01% automount libc-2.12.so [.] malloc
The trap_nr addition patch is a prereq.
Signed-off-by: Ananth N Mavinakayanahalli <ananth@in.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Diffstat (limited to 'arch/powerpc/Kconfig')
| -rw-r--r-- | arch/powerpc/Kconfig | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig index 352f416269ce..98e513b62709 100644 --- a/arch/powerpc/Kconfig +++ b/arch/powerpc/Kconfig @@ -239,6 +239,9 @@ config PPC_OF_PLATFORM_PCI config ARCH_SUPPORTS_DEBUG_PAGEALLOC def_bool y +config ARCH_SUPPORTS_UPROBES + def_bool y + config PPC_ADV_DEBUG_REGS bool depends on 40x || BOOKE |