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s390/vdso: Create .build-id links for unstripped vdso files

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Citing Andy Lutomirski from commit dda1e95cee ("x86/vdso: Create
.build-id links for unstripped vdso files"):

"With this change, doing 'make vdso_install' and telling gdb:

set debug-file-directory /lib/modules/KVER/vdso

will enable vdso debugging with symbols.  This is useful for
testing, but kernel RPM builds will probably want to manually delete
these symlinks or otherwise do something sensible when they strip
the vdso/*.so files."

Fixes: 4bff8cb545 ("s390: convert to GENERIC_VDSO")
Signed-off-by: Jens Remus <jremus@linux.ibm.com>
Signed-off-by: Alexander Gordeev <agordeev@linux.ibm.com>
This commit is contained in:
Jens Remus 2024-04-29 17:02:53 +02:00 committed by Alexander Gordeev
parent 10f7052536
commit fc2f5f10f9
1 changed files with 1 additions and 1 deletions
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2
scripts/Makefile.vdsoinst
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@ -21,7 +21,7 @@ $$(dest): $$(src) FORCE
$$(call cmd,install) $$(call cmd,install)
# Some architectures create .build-id symlinks # Some architectures create .build-id symlinks
ifneq ($(filter arm sparc x86, $(SRCARCH)),) ifneq ($(filter arm s390 sparc x86, $(SRCARCH)),)
link := $(install-dir)/.build-id/$$(shell $(READELF) -n $$(src) | sed -n 's@^.*Build ID: \(..\)\(.*\)@\1/\2@p').debug link := $(install-dir)/.build-id/$$(shell $(READELF) -n $$(src) | sed -n 's@^.*Build ID: \(..\)\(.*\)@\1/\2@p').debug
__default: $$(link) __default: $$(link)