https://sourceware.org/bugzilla/show_bug.cgi?id=25498
Bug ID: 25498
Summary: support reading /usr/src/kernels/...../vmlinux.id as
buildid for kernel images
Product: elfutils
Version: unspecified
Status: NEW
Severity: normal
Priority: P2
Component: libdw
Assignee: unassigned at sourceware dot org
Reporter: fche at redhat dot com
CC: elfutils-devel at sourceware dot org
Target Milestone: ---
Some linux kernel install images lack anything resembling the ELF file that
elfutils can read - even after x86 vmlinuz-style unwrapping/decompression. For
example, arm64 butchers the poor vmlinux via
objdump -O binary -R .note.gnu.build-id
etc. in linux arch/arm64/boot/Makefile
That leaves us nothing to extract a buildid, with which find_debuginfo() could
reach out to debuginfod.
"No, there is another." --- random jedi guy
Yes, find_debuginfo() for the kernel only, could also snoop on the file
/usr/src/kernels/`uname -r`/vmlinux.id
which contains the buildid hex string, as a part of the kernel-devel subrpm on
fedora/rhel-ish packaging at least. (No such luck on debian/ubuntu so far.)
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