Re: find-debuginfo failing with objcopy Permission denied error

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On Mon, Nov 18, 2024 at 03:35:38PM +0000, Richard W.M. Jones wrote:
> On Mon, Nov 18, 2024 at 03:16:13PM +0000, Richard W.M. Jones wrote:
> > This is a weird one:
> > 
> > https://koji.fedoraproject.org/koji/taskinfo?taskID=125988419
> > 
> > + /usr/bin/find-debuginfo -j48 --strict-build-id -m -i --build-id-seed 1.55.2-1.fc42 --unique-debug-suffix -1.55.2-1.fc42.x86_64 --unique-debug-src-base libguestfs-1.55.2-1.fc42.x86_64 --run-dwz --dwz-low-mem-die-limit 10000000 --dwz-max-die-limit 110000000 -S debugsourcefiles.list /builddir/build/BUILD/libguestfs-1.55.2-build/libguestfs-1.55.2
> > find-debuginfo: starting
> > Extracting debug info from 13 files
> > objcopy: unable to copy file '/builddir/build/BUILD/libguestfs-1.55.2-build/BUILDROOT/usr/lib64/perl5/vendor_perl/auto/Sys/Guestfs/Guestfs.so'; reason: Permission denied
> > *** ERROR:: GDB exited with exit status 1 during index generation
> 
> I managed to reproduce this locally.  The file permissions look
> normal, albeit the file is write-protected:
> 
> -r-xr-xr-x. 1 rjones rjones 2885944 Nov 18 15:22 /home/rjones/d/fedora/libguestfs/rawhide/libguestfs-1.55.2-build/BUILDROOT/usr/lib64/perl5/vendor_perl/auto/Sys/Guestfs/Guestfs.so
> 
> I patched gdb-add-index to print the exact command which fails, and
> that is:
> 
> + objcopy --add-section .gdb_index=/home/rjones/d/fedora/libguestfs/rawhide/libguestfs-1.55.2-build/BUILDROOT/usr/lib64/perl5/vendor_perl/auto/Sys/Guestfs/Guestfs.so.gdb-index --set-section-flags .gdb_index=readonly /home/rjones/d/fedora/libguestfs/rawhide/libguestfs-1.55.2-build/BUILDROOT/usr/lib64/perl5/vendor_perl/auto/Sys/Guestfs/Guestfs.so /home/rjones/d/fedora/libguestfs/rawhide/libguestfs-1.55.2-build/BUILDROOT/usr/lib64/perl5/vendor_perl/auto/Sys/Guestfs/Guestfs.so
> objcopy: unable to copy file '/home/rjones/d/fedora/libguestfs/rawhide/libguestfs-1.55.2-build/BUILDROOT/usr/lib64/perl5/vendor_perl/auto/Sys/Guestfs/Guestfs.so'; reason: Permission denied
> 
> It seems like it is trying to update the file in place, which is
> interesting.  Is that allowed?  Anyway as the permissions of the file
> are 0555 it won't be able to do that.  Is this a recent change in
> behaviour?

Perhaps the same thing as this thread:
https://lists.fedoraproject.org/archives/list/devel@xxxxxxxxxxxxxxxxxxxxxxx/thread/GG4LQYBEKGWAGFSJ5PKTKJAOHLAB3A27/#QYIK5E642MDB4NGBXLRLLTMU7HAJOVV5

ie, debugedit 5.1?

kevin

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