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| author | Michael Ellerman <mpe@ellerman.id.au> | 2021-01-19 15:18:00 +1100 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2021-01-20 11:49:55 +1100 |
| commit | dd3a44c06f7b4f14e90065bf05d62c255b20005f (patch) | |
| tree | d49ce19b7fa0e6a4ad879b10616cea4914c69004 | |
| parent | 92a5e1fdb286851d5bd0eb966b8d075be27cf5ee (diff) | |
| download | linux-dd3a44c06f7b4f14e90065bf05d62c255b20005f.tar.gz linux-dd3a44c06f7b4f14e90065bf05d62c255b20005f.tar.bz2 linux-dd3a44c06f7b4f14e90065bf05d62c255b20005f.zip | |
selftests/powerpc: Only test lwm/stmw on big endian
Newer binutils (>= 2.36) refuse to assemble lmw/stmw when building in
little endian mode. That breaks compilation of our alignment handler
test:
/tmp/cco4l14N.s: Assembler messages:
/tmp/cco4l14N.s:1440: Error: `lmw' invalid when little-endian
/tmp/cco4l14N.s:1814: Error: `stmw' invalid when little-endian
make[2]: *** [../../lib.mk:139: /output/kselftest/powerpc/alignment/alignment_handler] Error 1
These tests do pass on little endian machines, as the kernel will
still emulate those instructions even when running little
endian (which is arguably a kernel bug).
But we don't really need to test that case, so ifdef those
instructions out to get the alignment test building again.
Reported-by: Libor Pechacek <lpechacek@suse.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Tested-by: Libor Pechacek <lpechacek@suse.com>
Link: https://lore.kernel.org/r/20210119041800.3093047-1-mpe@ellerman.id.au
| -rw-r--r-- | tools/testing/selftests/powerpc/alignment/alignment_handler.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/tools/testing/selftests/powerpc/alignment/alignment_handler.c b/tools/testing/selftests/powerpc/alignment/alignment_handler.c index cb53a8b777e6..c25cf7cd45e9 100644 --- a/tools/testing/selftests/powerpc/alignment/alignment_handler.c +++ b/tools/testing/selftests/powerpc/alignment/alignment_handler.c @@ -443,7 +443,6 @@ int test_alignment_handler_integer(void) LOAD_DFORM_TEST(ldu); LOAD_XFORM_TEST(ldx); LOAD_XFORM_TEST(ldux); - LOAD_DFORM_TEST(lmw); STORE_DFORM_TEST(stb); STORE_XFORM_TEST(stbx); STORE_DFORM_TEST(stbu); @@ -462,7 +461,11 @@ int test_alignment_handler_integer(void) STORE_XFORM_TEST(stdx); STORE_DFORM_TEST(stdu); STORE_XFORM_TEST(stdux); + +#ifdef __BIG_ENDIAN__ + LOAD_DFORM_TEST(lmw); STORE_DFORM_TEST(stmw); +#endif return rc; } |