linux-kernel - [PATCH v7 4/4] selftests/powerpc: update strlen() test to test the new assembly function for PPC32

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Date:   Thu,  5 Jul 2018 08:29:04 +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 v7 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>
---
 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/ppc_asm.h | 10 ++++++++++
 2 files changed, 14 insertions(+), 1 deletion(-)

diff --git a/tools/testing/selftests/powerpc/stringloops/Makefile b/tools/testing/selftests/powerpc/stringloops/Makefile
index df663ee9ddb3..2f0bd203e18a 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/ppc_asm.h b/tools/testing/selftests/powerpc/stringloops/asm/ppc_asm.h
index 136242ec4b0e..161a7ee54005 100644
--- a/tools/testing/selftests/powerpc/stringloops/asm/ppc_asm.h
+++ b/tools/testing/selftests/powerpc/stringloops/asm/ppc_asm.h
@@ -1,4 +1,5 @@
 /* SPDX-License-Identifier: GPL-2.0 */
+
 #include <ppc-asm.h>
 
 #ifndef r1
@@ -6,3 +7,12 @@
 #endif
 
 #define _GLOBAL(A) FUNC_START(test_ ## A)
+
+#ifndef __powerpc64__
+#define SZL		4
+#define PPC_LLU		lwzu
+#define PPC_LCMPI	cmplwi
+#define PPC_ROTLI	rotlwi
+#define PPC_CNTLZL	cntlzw
+#define PPC_SRLI	srwi
+#endif
-- 
2.13.3