From: Eli Zaretskii <eliz@gnu.org>
To: Andrew Burgess <andrew.burgess@embecosm.com>
Cc: gdb-patches@sourceware.org
Subject: Re: [PUSHED 6/6] gdb: print backtrace for internal error/warning
Date: Tue, 28 Sep 2021 15:26:47 +0300 [thread overview]
Message-ID: <83ee98khrs.fsf@gnu.org> (raw)
In-Reply-To: <91f2597bd24d171c1337a4629f8237aa47c59082.1632828191.git.andrew.burgess@embecosm.com> (message from Andrew Burgess on Tue, 28 Sep 2021 12:26:24 +0100)
> From: Andrew Burgess <andrew.burgess@embecosm.com>
> Date: Tue, 28 Sep 2021 12:26:24 +0100
>
> ../../src.dev-3/gdb/maint.c:82: internal-error: blah
> A problem internal to GDB has been detected,
> further debugging may prove unreliable.
> Create a core file of GDB? (y or n) n
>
> My hope is that this backtrace might make it slightly easier to
> diagnose GDB issues if all that is provided is the console output, I
> find that we frequently get reports of an assert being hit that is
> located in pretty generic code (frame.c, value.c, etc) and it is not
> always obvious how we might have arrived at the assert.
>
> Bug: https://sourceware.org/bugzilla/show_bug.cgi?id=26377
> ---
> gdb/NEWS | 8 ++
> gdb/doc/gdb.texinfo | 13 ++
> .../gdb.base/bt-on-error-and-warning.exp | 118 ++++++++++++++++++
> gdb/testsuite/gdb.base/bt-on-fatal-signal.exp | 36 ------
> gdb/utils.c | 36 +++++-
> 5 files changed, 174 insertions(+), 37 deletions(-)
> create mode 100644 gdb/testsuite/gdb.base/bt-on-error-and-warning.exp
>
> diff --git a/gdb/NEWS b/gdb/NEWS
> index d7c29c82edb..1e25cb8cc36 100644
> --- a/gdb/NEWS
> +++ b/gdb/NEWS
> @@ -19,6 +19,14 @@ show source open
> to open and read source code files, which can be useful if the files
> are located over a slow network connection.
>
> +maint set internal-error backtrace on|off
> +maint show internal-error backtrace
> +maint set internal-warning backtrace on|off
> +maint show internal-warning backtrace
> + GDB can now print a backtrace of itself when it encounters either an
> + internal-error, or an internal-warning. This is on by default for
> + internal-error and off by default for internal-warning.
Does this depend on libbacktrace? If so, should that be mentioned in
the documentation?
> +When @value{GDBN} reports an internal problem (error or warning) it is
> +possible to have a backtrace of @value{GDBN} printed to stderr. This
I suggest "standard error stream" instead of "stderr".
The documentation parts are okay with these nits taken care of.
Thanks.
next prev parent reply other threads:[~2021-09-28 12:26 UTC|newest]
Thread overview: 34+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-08-19 9:49 [PATCH 0/6] Display GDB backtrace for internal errors Andrew Burgess
2021-08-19 9:49 ` [PATCH 1/6] gdb: use bool instead of int in struct internal_problem Andrew Burgess
2021-08-19 18:33 ` Simon Marchi
2021-09-07 14:11 ` Andrew Burgess
2021-08-19 9:49 ` [PATCH 2/6] gdb: make use of std::string in utils.c Andrew Burgess
2021-08-19 18:41 ` Simon Marchi
2021-09-07 14:12 ` Andrew Burgess
2021-08-19 9:49 ` [PATCH 3/6] gdb: Add a dependency between gdb and libbacktrace Andrew Burgess
2021-08-19 18:43 ` Simon Marchi
2021-08-27 17:44 ` Tom Tromey
2021-08-30 20:33 ` Andrew Burgess
2021-08-19 9:49 ` [PATCH 4/6] Copy in libbacktrace from gcc Andrew Burgess
2021-08-27 17:46 ` Tom Tromey
2021-08-30 20:34 ` Andrew Burgess
2021-08-19 9:49 ` [PATCH 5/6] gdb: use libbacktrace to create a better backtrace for fatal signals Andrew Burgess
2021-08-19 18:58 ` Simon Marchi
2021-08-19 9:49 ` [PATCH 6/6] gdb: print backtrace for internal error/warning Andrew Burgess
2021-08-19 19:01 ` Simon Marchi
2021-08-30 14:16 ` [PATCH 0/6] Display GDB backtrace for internal errors Tom de Vries
2021-08-30 20:35 ` Andrew Burgess
2021-08-31 11:17 ` Florian Weimer
2021-09-28 11:26 ` [PUSHED " Andrew Burgess
2021-09-28 11:26 ` [PUSHED 1/6] top-level configure: setup target_configdirs based on repository Andrew Burgess
2021-09-28 11:26 ` [PUSHED 2/6] gdb: Add a dependency between gdb and libbacktrace Andrew Burgess
2021-09-28 11:26 ` [PUSHED 4/6] src-release.sh: add libbacktrace to GDB_SUPPORT_DIRS Andrew Burgess
2021-09-28 11:26 ` [PUSHED 5/6] gdb: use libbacktrace to create a better backtrace for fatal signals Andrew Burgess
2021-09-28 18:55 ` Pedro Alves
2021-09-29 8:21 ` Andrew Burgess
2021-09-29 3:09 ` Simon Marchi
2021-09-29 9:56 ` Andrew Burgess
2021-09-28 11:26 ` [PUSHED 6/6] gdb: print backtrace for internal error/warning Andrew Burgess
2021-09-28 12:26 ` Eli Zaretskii [this message]
2021-09-29 8:34 ` Andrew Burgess
2021-09-28 12:20 ` [PUSHED 3/6] Copy in libbacktrace from gcc Andrew Burgess
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