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| author |   Michael Ellerman <mpe@ellerman.id.au> | 2018-07-24 15:53:22 +1000 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2018-10-20 13:26:47 +1100 |
| commit | b7683fc66eba91674e52c30f4d8e596bfb5cbcf4 (patch) | |
| tree | e724c8201aa93f0d70b86ed37ee47597afefb882 /tools/testing/selftests/powerpc/mm/Makefile | |
| parent | powerpc/mm: Fix page table dump to work on Radix (diff) | |
| download | linux-dev-b7683fc66eba91674e52c30f4d8e596bfb5cbcf4.tar.xz linux-dev-b7683fc66eba91674e52c30f4d8e596bfb5cbcf4.zip | |
selftests/powerpc: Add a test of wild bctr
This tests that a bctr (Branch to counter and link), ie. a function
call, to a wildly out-of-bounds address is handled correctly.
Some old kernel versions didn't handle it correctly, see eg:
"powerpc/slb: Force a full SLB flush when we insert for a bad EA"
https://lists.ozlabs.org/pipermail/linuxppc-dev/2017-April/157397.html
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Diffstat (limited to 'tools/testing/selftests/powerpc/mm/Makefile')
| -rw-r--r-- | tools/testing/selftests/powerpc/mm/Makefile | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/tools/testing/selftests/powerpc/mm/Makefile b/tools/testing/selftests/powerpc/mm/Makefile index 33ced6e0ad25..43d68420e363 100644 --- a/tools/testing/selftests/powerpc/mm/Makefile +++ b/tools/testing/selftests/powerpc/mm/Makefile @@ -2,7 +2,7 @@ noarg: $(MAKE) -C ../ -TEST_GEN_PROGS := hugetlb_vs_thp_test subpage_prot prot_sao segv_errors +TEST_GEN_PROGS := hugetlb_vs_thp_test subpage_prot prot_sao segv_errors wild_bctr TEST_GEN_FILES := tempfile top_srcdir = ../../../../.. @@ -12,6 +12,8 @@ $(TEST_GEN_PROGS): ../harness.c $(OUTPUT)/prot_sao: ../utils.c +$(OUTPUT)/wild_bctr: CFLAGS += -m64 + $(OUTPUT)/tempfile: dd if=/dev/zero of=$@ bs=64k count=1 |