| commit | 661cc8d0846273cf3b458764231ac10126f0d3a9 | [log] [tgz] |
|---|---|---|
| author | Andrew Jeffery <andrew@aj.id.au> | Tue Jan 11 15:42:32 2022 +1030 |
| committer | Andrew Jeffery <andrew@aj.id.au> | Tue Jan 11 18:15:17 2022 +1030 |
| tree | 9d57f566145dddc97b039b5191b6ad93a7b0abf6 | |
| parent | 9949cc7ca2192941a340a8dc7218a19b93f0bc55 [diff] |
bbdbg: Debug a target environment generated by bitbake
bbdbg does the legwork to give you a gdb instance tailored for a target
environment generated from a local bitbake build tree. This saves
the time otherwise spent by building and installing an SDK for the same.
Documentation:
```
3 15:52:42 andrew@mistburn:~/src/openbmc/openbmc-tools/bbdbg (bbdbg) $ ./bbdbg
./bbdbg: 26: 1: parameter not set
NAME
bbdbg - debug applications in a target environment built by bitbake
SYNOPSIS
bbdbg PATH FILE CORE PACKAGES
DESCRIPTION
PATH is the path to the root of a bitbake build directory
FILE is the absolute path to the binary of interest in the target environment
CORE is an optional core file generated by FILE. Pass '-' for no core file
PACKAGES will be used to populate a temporary rootfs for debugging FILE
EXAMPLE
bbdbg ~/src/openbmc/openbmc/build/p10bmc \
/usr/bin/nvmesensor - \
dbus-sensors dbus-sensors-dbg
```
Example use:
```
3 15:50:40 andrew@mistburn:~/src/openbmc/openbmc-tools/bbdbg (bbdbg) $ ./bbdbg ~/src/openbmc/openbmc/build/p10bmc /usr/bin/nvmesensor obmcdump_3_1641877435/core.nvmesensor.0.db0e4de236a6448e9005e85a0dffb348.1554.1641877432000000 dbus-sensors dbus-sensors-dbg
+ bbdbg_opkg update
+ LD_LIBRARY_PATH=/home/andrew/src/openbmc/openbmc/build/p10bmc/tmp/sysroots-components/x86_64/libsolv-native/usr/lib /home/andrew/src/openbmc/openbmc/build/p10bmc/tmp/sysroots-components/x86_64/opkg-native/usr/bin/opkg -V0 -f /home/andrew/src/openbmc/openbmc/build/p10bmc/tmp/work/p10bmc-openbmc-linux-gnueabi/obmc-phosphor-image/1.0-r0/opkg.conf -o /tmp/bbdbg.375 update
+ bbdbg_opkg install dbus-sensors dbus-sensors-dbg
+ LD_LIBRARY_PATH=/home/andrew/src/openbmc/openbmc/build/p10bmc/tmp/sysroots-components/x86_64/libsolv-native/usr/lib /home/andrew/src/openbmc/openbmc/build/p10bmc/tmp/sysroots-components/x86_64/opkg-native/usr/bin/opkg -V0 -f /home/andrew/src/openbmc/openbmc/build/p10bmc/tmp/work/p10bmc-openbmc-linux-gnueabi/obmc-phosphor-image/1.0-r0/opkg.conf -o /tmp/bbdbg.375 install dbus-sensors dbus-sensors-dbg
+ [ - = obmcdump_3_1641877435/core.nvmesensor.0.db0e4de236a6448e9005e85a0dffb348.1554.1641877432000000 ]
+ echo obmcdump_3_1641877435/core.nvmesensor.0.db0e4de236a6448e9005e85a0dffb348.1554.1641877432000000
+ gdb-multiarch -q -iex set solib-absolute-prefix /tmp/bbdbg.375 -iex add-auto-load-safe-path /tmp/bbdbg.375 /tmp/bbdbg.375/usr/bin/nvmesensor obmcdump_3_1641877435/core.nvmesensor.0.db0e4de236a6448e9005e85a0dffb348.1554.1641877432000000
Reading symbols from /tmp/bbdbg.375/usr/bin/nvmesensor...
Reading symbols from /tmp/bbdbg.375/usr/bin/.debug/nvmesensor...
[New LWP 1554]
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
Core was generated by `/usr/bin/nvmesensor'.
Program terminated with signal SIGSEGV, Segmentation fault.
#0 0x76b88f50 in epoll_wait (epfd=<optimised out>, events=0x7edf1478, maxevents=128, timeout=-1) at ../sysdeps/unix/sysv/linux/epoll_wait.c:30
30 ../sysdeps/unix/sysv/linux/epoll_wait.c: No such file or directory.
(gdb) bt
#0 0x76b88f50 in epoll_wait (epfd=<optimised out>, events=0x7edf1478, maxevents=128, timeout=-1) at ../sysdeps/unix/sysv/linux/epoll_wait.c:30
#1 0x0044adf4 in boost::asio::detail::epoll_reactor::run (ops=..., usec=<optimised out>, this=<optimised out>) at /usr/include/boost/asio/detail/impl/epoll_reactor.ipp:501
#2 boost::asio::detail::scheduler::do_run_one (ec=..., this_thread=..., lock=<synthetic pointer>..., this=0x17b1ea8) at /usr/include/boost/asio/detail/impl/scheduler.ipp:470
#3 boost::asio::detail::scheduler::run (ec=..., this=0x17b1ea8) at /usr/include/boost/asio/detail/impl/scheduler.ipp:204
#4 boost::asio::io_context::run (this=0x7edf1234, this=0x7edf1234) at /usr/include/boost/asio/impl/io_context.ipp:63
#5 main () at ../../../../../../workspace/sources/dbus-sensors/src/NVMeSensorMain.cpp:274
(gdb) quit
+ set +x
3 15:51:10 andrew@mistburn:~/src/openbmc/openbmc-tools/bbdbg (bbdbg) $
```
Signed-off-by: Andrew Jeffery <andrew@aj.id.au>
Change-Id: I82f5872742253351c7ac8d25b479ac8194e07afd
The goal of this repository is to collect the two-minute hacks you write to automate interactions with OpenBMC systems.
It's highly likely the scripts don't meet your needs - they could be undocumented, dysfunctional or utterly broken. Please help us improve!
Then this repository aims to be the default destination for your otherwise un-homed scripts. As such we are setting the bar for submission pretty low, and we aim to make the process as easy as possible.
Please use gerrit for all patches to this repository:
Do note that you will need to be party to the OpenBMC CLA before your contributions can be accepted. See Gerrit Setup and CLA for more information.
So long as your patches look sane with a cursory glance you can expect them to be applied. We may push back in the event that similar tools already exist or there are egregious issues.
We don't ask for much, but you need to give us at least a Signed-off-by, use SPDX markers in your source files and put your work under an Apache 2.0 compatible license.
There's no standard way to install the scripts housed here, and adding parts of the repository to your PATH might be a bit of a dice-roll. We may also move or remove scripts from time to time as part of housekeeping. It's probably best to copy things out if you need stability.