On 06/09/2019 09:26, Sebastian Huber wrote:
On 06/09/2019 09:01, Chris Johns wrote:
On 6/9/19 4:20 pm, Sebastian Huber wrote:
Hello,
I tried the rtems-addr2line on ARM and SPARC. On SPARC it seems to
work fine,
however, on ARM I get this:
rtems-addr2line -e
build/arm-rtems5-xilinx_zynq_a9_qemu-everything/media01.exe
0x0000135a
/home/EB/sebastian_h/git-rtems-5/c/src/lib/libbsp/arm/xilinx-zynq/../../../../../../bsps/arm/shared/irq/irq-gic.c:264
addr2line -e
build/arm-rtems5-xilinx_zynq_a9_qemu-everything/media01.exe 0000135a
/scratch/git-rtems-libbsd/build/arm-rtems5-xilinx_zynq_a9_qemu-everything/../../testsuite/include/rtems/bsd/test/default-network-init.h:179
The GNU tool is right. It is also considerably faster.
I would hope it is faster and exact. It has had many years of work on it,
written in C and not a means to test a C++ framework so we can grow an
ecosystem. I have stated its purpose before. I am perplexed by the
intent of
this statement.
If you want to compare performance I suggest you try the elftools one?
There is
one. It is not built because GNU provides one and good one.
Also be-careful as the exec call is not as fast as Linux on all the
hosts we
support.
That the GNU tool is faster was just an observation.
Do we have a working library solution to get from an address to the
source line/function? I don't have time to debug the DWARF support code
at the moment.
I have a working solution using "addr2line" and rld::process::execute().
Thanks for the hint to the elftoolchain:
https://github.com/elftoolchain/elftoolchain/blob/trunk/addr2line/addr2line.c
To me it looks pretty complicated. It should be possible to refactor
this code to use it as a library, e.g. call translate() for each address
you need the source information.
I tried to debug the rld get_source() problem for more than two hours
and the elftoolchain code looks similar. I am not sure what to do.
--
Sebastian Huber, embedded brains GmbH
Address : Dornierstr. 4, D-82178 Puchheim, Germany
Phone : +49 89 189 47 41-16
Fax : +49 89 189 47 41-09
E-Mail : sebastian.hu...@embedded-brains.de
PGP : Public key available on request.
Diese Nachricht ist keine geschäftliche Mitteilung im Sinne des EHUG.
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