diff options
| author | Michael Ellerman <mpe@ellerman.id.au> | 2020-07-24 19:25:24 +1000 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2020-07-29 21:02:11 +1000 |
| commit | c9938a9dac95be7650218cdd8e9d1f882e7b5691 (patch) | |
| tree | 303e91fb7bb2cfe2858eed4f66e38500253a6256 /tools/testing/selftests/powerpc/mm/Makefile | |
| parent | 5f8cf6475828b600ff6d000e580c961ac839cc61 (diff) | |
selftests/powerpc: Add test of stack expansion logic
We have custom stack expansion checks that it turns out are extremely
badly tested and contain bugs, surprise. So add some tests that
exercise the code and capture the current boundary conditions.
The signal test currently fails on 64-bit kernels because the 2048
byte allowance for the signal frame is too small, we will fix that in
a subsequent patch.
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20200724092528.1578671-1-mpe@ellerman.id.au
Diffstat (limited to 'tools/testing/selftests/powerpc/mm/Makefile')
| -rw-r--r-- | tools/testing/selftests/powerpc/mm/Makefile | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/tools/testing/selftests/powerpc/mm/Makefile b/tools/testing/selftests/powerpc/mm/Makefile index 740f7854548e..250ce172e0da 100644 --- a/tools/testing/selftests/powerpc/mm/Makefile +++ b/tools/testing/selftests/powerpc/mm/Makefile @@ -4,7 +4,8 @@ noarg: TEST_GEN_PROGS := hugetlb_vs_thp_test subpage_prot segv_errors wild_bctr \ large_vm_fork_separation bad_accesses pkey_exec_prot \ - pkey_siginfo + pkey_siginfo stack_expansion_signal stack_expansion_ldst + TEST_GEN_PROGS_EXTENDED := tlbie_test TEST_GEN_FILES := tempfile @@ -19,6 +20,11 @@ $(OUTPUT)/bad_accesses: CFLAGS += -m64 $(OUTPUT)/pkey_exec_prot: CFLAGS += -m64 $(OUTPUT)/pkey_siginfo: CFLAGS += -m64 +$(OUTPUT)/stack_expansion_signal: ../utils.c ../pmu/lib.c + +$(OUTPUT)/stack_expansion_ldst: CFLAGS += -fno-stack-protector +$(OUTPUT)/stack_expansion_ldst: ../utils.c + $(OUTPUT)/tempfile: dd if=/dev/zero of=$@ bs=64k count=1 |