Add a RHEL reproducer that causes a kpatch-build to fail when the final
module references a symbol with a different CRC than the original
kernel.
Signed-off-by: Julien Thierry <jthierry@redhat.com>
The gcc-static-local-var-4.patch and test check that unmodified
functions that contain dynamic debugging printk's aren't incorrectly
included in the resulting livepatch .ko.
Note that on RHEL-7.7 ppc64le, the gcc-static-local-var-4.ko livepatch
module may include klp-relocation references to free_ioctx(), a function
that would match the above criteria. These klp-relocation symbols are
OK as they are only used for referencing said functions, they are not
copies that the check should FAIL on.
Modify gcc-static-local-var-4.test in a few ways:
- Use eu-readelf instead of readelf, which some versions have problems
handling klp-relocations.
- Set pipefail to catch any errors in the symbol table dump (missing
elfutils, etc.)
- Instead of a grep regex, use awk to string compare exact function
and module names. This avoids matching on .klp.sym prefixed
klp-relocation symbols.
Fixes#1069.
Signed-off-by: Joe Lawrence <joe.lawrence@redhat.com>
new-function test fails on ppc64le with the following message:
create-diff-object: ERROR: n_tty.o: kpatch_no_sibling_calls_ppc64le: 3445: Found an unsupported sibling call at n_tty_write()+0x20. Add __attribute__((optimize("-fno-optimize-sibling-calls"))) to n_tty_write() definition.
Add the suggested attribute, as was done for rhel-7.[5-7] versions of
the test.
Signed-off-by: Julien Thierry <jthierry@redhat.com>
On ppcle64, test gcc-static-local-var-4 impacts a jump label reference
which is currently unsupported.
Signed-off-by: Julien Thierry <jthierry@redhat.com>
Jump labels are unsupported, so tests modifying functions using them are
expected to fail. So disable them, for now...
Signed-off-by: Julien Thierry <jthierry@redhat.com>
Rebase the integration test cases on top of RHEL 8.0 kernel version
4.18.0-80.el8.
Suggested-by: Joe Lawrence <joe.lawrence@redhat.com>
Signed-off-by: Kamalesh Babulal <kamalesh@linux.vnet.ibm.com>
[JT: adapt data-new-LOADED to new meminfo format,
use common template for multiple.test]
Signed-off-by: Julien Thierry <jthierry@redhat.com>
