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Cloning for GTS13 on RHEL8. [NOTE: There is no gcc-toolset-13-gdb
component in bugzilla.]
+++ This bug was initially created as a clone of Bug #2213228 +++
gdb carries a patch (in both fedora and rhel) which makes gdb-add-index use gdb.minimal: https://gitlab.com/redhat/centos-stream/rpms/gcc-toolset-13-gdb/-/blob/c9s/gdb-libexec-add-index.patch
Contrary to the comment in the patch, this does not just default to gdb.minimal, but will always use it if present, even if a different gdb has been explicitly specified via $PATH or $GDB.
gdb-add-index on LTO builds produced by Clang sometimes requires a newer gdb than the system version. We would like to make use of the gdb provided by gcc-toolset. However, this patch prevents us from specifying the newer gdb.
It should be possible to fix this issue by adding the same " && ! which $GDB &>/dev/null" check as is present in the first part of the patch.
--- Additional comment from Keith Seitz on 2023-06-09 16:03:35 UTC ---
This patch has recently been rewritten, and is available
in rawhide:
https://src.fedoraproject.org/rpms/gdb/blob/rawhide/f/gdb-add-index.patch
The most obvious change here is that the environment variable "GDB" is
no longer ignored, and is used if set/valid.
Would that suffice?
I can mock up a test build for you, if you'd like to verify. Just let
me know.
Would we need this for RHEL8, too?
--- Additional comment from Nikita Popov on 2023-06-12 09:28:42 UTC ---
Thanks! This patch should work for us. I did the following in a mock environment:
> source scl_source enable gcc-toolset-13
> vim /opt/rh/gcc-toolset-13/root/bin/gdb-add-index (and replace with the new script)
> export GDB=/opt/rh/gcc-toolset-13/root/usr/bin/gdb
> gdb-add-index build/BUILD/lldb-16.0.1.src/redhat-linux-build/bin/lldb-server
And this worked without error.
> Would we need this for RHEL8, too?
Just RHEL 9 is enough for our purposes.
Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.
For information on the advisory (gcc-toolset-13-gdb bug fix and enhancement update), and where to find the updated
files, follow the link below.
If the solution does not work for you, open a new bug report.
https://access.redhat.com/errata/RHEA-2023:6962