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| author | Samuel Thibault <samuel.thibault@ens-lyon.org> | 2013-03-17 13:29:39 +0100 |
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| committer | Samuel Thibault <samuel.thibault@ens-lyon.org> | 2013-03-17 13:29:39 +0100 |
| commit | b43ea6ca9b24067ee5d4775383a09c46233119df (patch) | |
| tree | ca8834a185270e2896cf213daf8184e3eeb3450b /faq/dev | |
| parent | f4e44fd710c97c83c0626ce0334a2d4aedb729a2 (diff) | |
| download | web-b43ea6ca9b24067ee5d4775383a09c46233119df.tar.gz web-b43ea6ca9b24067ee5d4775383a09c46233119df.tar.bz2 web-b43ea6ca9b24067ee5d4775383a09c46233119df.zip | |
Categorize FAQs more
Diffstat (limited to 'faq/dev')
| -rw-r--r-- | faq/dev/debugging_inside_glibc.mdwn | 19 | ||||
| -rw-r--r-- | faq/dev/debugging_translators.mdwn | 19 |
2 files changed, 38 insertions, 0 deletions
diff --git a/faq/dev/debugging_inside_glibc.mdwn b/faq/dev/debugging_inside_glibc.mdwn new file mode 100644 index 00000000..6f2d4ee3 --- /dev/null +++ b/faq/dev/debugging_inside_glibc.mdwn @@ -0,0 +1,19 @@ +[[!meta copyright="Copyright © 2007, 2008, 2009 Free Software Foundation, +Inc."]] + +[[!meta license="""[[!toggle id="license" text="GFDL 1.2+"]][[!toggleable +id="license" text="Permission is granted to copy, distribute and/or modify this +document under the terms of the GNU Free Documentation License, Version 1.2 or +any later version published by the Free Software Foundation; with no Invariant +Sections, no Front-Cover Texts, and no Back-Cover Texts. A copy of the license +is included in the section entitled +[[GNU Free Documentation License|/fdl]]."]]"""]] + +In Debian, to get [[debugging]] information for glibc, you need to install the +`libc0.3-dbg` package. At the place [[debugging/GDB]] looks for debugging +symbols by default (`/usr/lib/debug/lib/`), Debian's `libc0.3-dbg` stores only +the frame unwind information used for backtracing. If you want to step into +glibc while debugging, you need to add `LD_LIBRARY_PATH=/usr/lib/debug` to +debugged program's environment (`set env VAR value` from the GDB command line). +If that still does not work, try `LD_PRELOAD=/usr/lib/debug/libc.so.0.3` +instead. diff --git a/faq/dev/debugging_translators.mdwn b/faq/dev/debugging_translators.mdwn new file mode 100644 index 00000000..7a90a7e0 --- /dev/null +++ b/faq/dev/debugging_translators.mdwn @@ -0,0 +1,19 @@ +[[!meta copyright="Copyright © 2007, 2008 Free Software Foundation, Inc."]] + +[[!meta license="""[[!toggle id="license" text="GFDL 1.2+"]][[!toggleable +id="license" text="Permission is granted to copy, distribute and/or modify this +document under the terms of the GNU Free Documentation License, Version 1.2 or +any later version published by the Free Software Foundation; with no Invariant +Sections, no Front-Cover Texts, and no Back-Cover Texts. A copy of the license +is included in the section entitled +[[GNU Free Documentation License|/fdl]]."]]"""]] + +In order to [[debug|debugging]] translators and being able to step into glibc +during it, on Debian you need the `hurd-dbg` and `libc0.3-dbg` packages installed. +If you need to debug the initialization of the translator, start the translator +like + + $ settrans -P /foo /usr/bin/env LD_LIBRARY_PATH=/usr/lib/debug /hurd/foofs + +The `-P` option will make it +pause and you will be able to attach [[debugging/GDB]] to the process. |