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15b4155138
prctl(PR_SET_CFI,PR_CFI_BRANCH_LANDING_PADS) silently ignored
unknown control values. Only PR_CFI_{ENABLE,DISABLE,LOCK} should
be permitted.
This changes the behavior of the uABI (fails previously accepted bits
with EINVAL).
Fixes: 08ee155905 ("prctl: cfi: change the branch landing pad prctl()s to be more descriptive")
Signed-off-by: Richard Patel <ripatel@wii.dev>
Link: https://patch.msgid.link/20260518183918.322545-1-ripatel@wii.dev
[pjw@kernel.org: change the patch description to note that although this is a uABI change, it does not break the uABI]
Signed-off-by: Paul Walmsley <pjw@kernel.org>
KSelfTest RISC-V
================
- These tests are riscv specific and so not built or run but just skipped
completely when env-variable ARCH is found to be different than 'riscv'.
- Holding true the above, RISC-V KSFT tests can be run within the
KSelfTest framework using standard Linux top-level-makefile targets:
$ make TARGETS=riscv kselftest-clean
$ make TARGETS=riscv kselftest
or
$ make -C tools/testing/selftests TARGETS=riscv \
INSTALL_PATH=<your-installation-path> install
or, alternatively, only specific riscv/ subtargets can be picked:
$ make -C tools/testing/selftests TARGETS=riscv RISCV_SUBTARGETS="mm vector" \
INSTALL_PATH=<your-installation-path> install
Further details on building and running KSFT can be found in:
Documentation/dev-tools/kselftest.rst