0fe7d7e976
Add a description of the JIT interface in the perf symbol resolution code. I reverse engineered the format from the source. Signed-off-by: Andi Kleen <ak@linux.intel.com> Acked-by: Pekka Enberg <penberg@cs.helsinki.fi> Cc: Pekka Enberg <penberg@cs.helsinki.fi> Link: http://lkml.kernel.org/r/1344526260-18721-1-git-send-email-andi@firstfloor.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
16 lines
447 B
Plaintext
16 lines
447 B
Plaintext
perf supports a simple JIT interface to resolve symbols for dynamic code generated
|
|
by a JIT.
|
|
|
|
The JIT has to write a /tmp/perf-%d.map (%d = pid of process) file
|
|
|
|
This is a text file.
|
|
|
|
Each line has the following format, fields separated with spaces:
|
|
|
|
START SIZE symbolname
|
|
|
|
START and SIZE are hex numbers without 0x.
|
|
symbolname is the rest of the line, so it could contain special characters.
|
|
|
|
The ownership of the file has to match the process.
|