linux-kernel - [PATCH v9 4/4] selftests/powerpc: update strlen() test to test the new assembly function for PPC32

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Date:   Thu,  2 Aug 2018 08:26:32 +0000 (UTC)
From:   Christophe Leroy <christophe.leroy@....fr>
To:     Benjamin Herrenschmidt <benh@...nel.crashing.org>,
        Paul Mackerras <paulus@...ba.org>,
        Michael Ellerman <mpe@...erman.id.au>, wei.guo.simon@...il.com,
        segher@...nel.crashing.org
Cc:     linux-kernel@...r.kernel.org, linuxppc-dev@...ts.ozlabs.org
Subject: [PATCH v9 4/4] selftests/powerpc: update strlen() test to test the
 new assembly function for PPC32

This patch adds a test for testing the new assembly strlen() for PPC32

Signed-off-by: Christophe Leroy <christophe.leroy@....fr>
---
 v9: fixed relevant checkpatch warnings
 v8: removed defines in ppc_asm.h that were added in v6 (not used anymore since v7) ; added missing link to strlen_32.S
 v7: reduced the scope to PPC32
 v6: added additional necessary defines in ppc_asm.h
 v5: no change
 v4: new

 tools/testing/selftests/powerpc/stringloops/Makefile    | 5 ++++-
 tools/testing/selftests/powerpc/stringloops/asm/cache.h | 3 +++
 tools/testing/selftests/powerpc/stringloops/strlen_32.S | 1 +
 3 files changed, 8 insertions(+), 1 deletion(-)
 create mode 100644 tools/testing/selftests/powerpc/stringloops/asm/cache.h
 create mode 120000 tools/testing/selftests/powerpc/stringloops/strlen_32.S

diff --git a/tools/testing/selftests/powerpc/stringloops/Makefile b/tools/testing/selftests/powerpc/stringloops/Makefile
index 779b644461c4..9e510de2c07d 100644
--- a/tools/testing/selftests/powerpc/stringloops/Makefile
+++ b/tools/testing/selftests/powerpc/stringloops/Makefile
@@ -13,9 +13,12 @@ $(OUTPUT)/memcmp_32: CFLAGS += -m32
 $(OUTPUT)/strlen: strlen.c string.o
 $(OUTPUT)/string.o: string.c
 
+$(OUTPUT)/strlen_32: strlen.c
+$(OUTPUT)/strlen_32: CFLAGS += -m32
+
 ASFLAGS = $(CFLAGS)
 
-TEST_GEN_PROGS := memcmp_32 memcmp_64 strlen
+TEST_GEN_PROGS := memcmp_32 memcmp_64 strlen strlen_32
 
 include ../../lib.mk
 
diff --git a/tools/testing/selftests/powerpc/stringloops/asm/cache.h b/tools/testing/selftests/powerpc/stringloops/asm/cache.h
new file mode 100644
index 000000000000..38685554b6c1
--- /dev/null
+++ b/tools/testing/selftests/powerpc/stringloops/asm/cache.h
@@ -0,0 +1,3 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+
+#define	IFETCH_ALIGN_BYTES 4
diff --git a/tools/testing/selftests/powerpc/stringloops/strlen_32.S b/tools/testing/selftests/powerpc/stringloops/strlen_32.S
new file mode 120000
index 000000000000..72b13731b24c
--- /dev/null
+++ b/tools/testing/selftests/powerpc/stringloops/strlen_32.S
@@ -0,0 +1 @@
+../../../../../arch/powerpc/lib/strlen_32.S
\ No newline at end of file
-- 
2.13.3