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coreboot-kgpe-d16/util/genprof/README

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Add support utils for tracing Following patch adds a userspace util genprof which is able to convert the console printed traces to gmon.out file used by gprof & friends. The log2dress will replace the adresses in logfile with a line numbers. Change-Id: I9f716f3ff2522a24fbc844a1dd5e32ef49b540c5 Signed-off-by: Rudolf Marek <r.marek@assembler.cz> Reviewed-on: http://review.coreboot.org/179 Tested-by: build bot (Jenkins) Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
2011-09-02 23:34:15 +02:00
Function tracing
----------------
Enable CONFIG_TRACE in debug menu. Run the compiled image on target. You will get
a log with a lot of lines like:
...
~0x001072e8(0x00100099)
~0x00108bc0(0x0010730a)
...
First address is address of function which was just entered, the second address
is address of functions which call that.
You can use the log2dress to dress the log again:
...
src/arch/x86/lib/c_start.S:85 calls /home/ruik/coreboot/src/boot/selfboot.c:367
Rename devices -> device to match src/include/device Change-Id: I5d0e5b4361c34881a3b81347aac48738cb5b9af0 Signed-off-by: Stefan Reinauer <reinauer@google.com> Reviewed-on: http://review.coreboot.org/1960 Tested-by: build bot (Jenkins) Reviewed-by: David Hendricks <dhendrix@chromium.org>
2012-11-30 21:34:04 +01:00
/home/ruik/coreboot/src/boot/selfboot.c:370 calls /home/ruik/coreboot/src/device/device.c:325
Add support utils for tracing Following patch adds a userspace util genprof which is able to convert the console printed traces to gmon.out file used by gprof & friends. The log2dress will replace the adresses in logfile with a line numbers. Change-Id: I9f716f3ff2522a24fbc844a1dd5e32ef49b540c5 Signed-off-by: Rudolf Marek <r.marek@assembler.cz> Reviewed-on: http://review.coreboot.org/179 Tested-by: build bot (Jenkins) Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
2011-09-02 23:34:15 +02:00
...
Alternatively, you can use genprof to generate a gmon.out file, which can be used
by gprof to show the call traces. You will need to install uthash library to compile
that.
Great use is:
make
Rename coreboot_ram stage to ramstage Rename coreboot_ram stage to ramstage. This is done in order to provide consistency with other stage names (bootblock, romstage) and to allow any Makefile rule generalization, required for patches to be submitted later. Change-Id: Ib66e43b7e17b9c48b2d099670ba7e7d857673386 Signed-off-by: Furquan Shaikh <furquan@google.com> Reviewed-on: http://review.coreboot.org/5567 Tested-by: build bot (Jenkins) Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net> Reviewed-by: Patrick Georgi <patrick@georgi-clan.de>
2014-04-22 19:41:05 +02:00
./genprof /tmp/yourlog ; gprof ../../build/ramstage | ./gprof2dot.py -e0 -n0 | dot -Tpng -o output.png
Add support utils for tracing Following patch adds a userspace util genprof which is able to convert the console printed traces to gmon.out file used by gprof & friends. The log2dress will replace the adresses in logfile with a line numbers. Change-Id: I9f716f3ff2522a24fbc844a1dd5e32ef49b540c5 Signed-off-by: Rudolf Marek <r.marek@assembler.cz> Reviewed-on: http://review.coreboot.org/179 Tested-by: build bot (Jenkins) Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
2011-09-02 23:34:15 +02:00
Which generates a PNG with a call graph.