selftests: vdso: Rename vdso_test to vdso_test_gettimeofday

Currently the vDSO kselftests have a test called vdso_test which tests
the vDSO implementation of gettimeofday(). In preparation for adding
tests for other vDSO functionality rename this test to reflect what's
going on.

Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>

diff --git a/tools/testing/selftests/vDSO/.gitignore b/tools/testing/selftests/vDSO/.gitignore
index 382cfb39a1a34afcd93b86789708c93c78dc6f54..74f49bd5f6dd89bf29657f9f1d846d487f8d6813 100644 (file)
--- a/tools/testing/selftests/vDSO/.gitignore
+++ b/tools/testing/selftests/vDSO/.gitignore
@@ -1,3 +1,4 @@
 # SPDX-License-Identifier: GPL-2.0-only
 vdso_test
+vdso_test_gettimeofday
 vdso_standalone_test_x86

diff --git a/tools/testing/selftests/vDSO/Makefile b/tools/testing/selftests/vDSO/Makefile
index 9e03d61f52fdfa911793010cc49b26e11bf3383f..ae15d700b62ee6d05804f2d4ae1907a09d83721b 100644 (file)
--- a/tools/testing/selftests/vDSO/Makefile
+++ b/tools/testing/selftests/vDSO/Makefile
@@ -4,7 +4,7 @@ include ../lib.mk
 uname_M := $(shell uname -m 2>/dev/null || echo not)
 ARCH ?= $(shell echo $(uname_M) | sed -e s/i.86/x86/ -e s/x86_64/x86/)
 
-TEST_GEN_PROGS := $(OUTPUT)/vdso_test
+TEST_GEN_PROGS := $(OUTPUT)/vdso_test_gettimeofday
 ifeq ($(ARCH),x86)
 TEST_GEN_PROGS += $(OUTPUT)/vdso_standalone_test_x86
 endif
@@ -17,7 +17,7 @@ LDLIBS += -lgcc_s
 endif
 
 all: $(TEST_GEN_PROGS)
-$(OUTPUT)/vdso_test: parse_vdso.c vdso_test.c
+$(OUTPUT)/vdso_test_gettimeofday: parse_vdso.c vdso_test_gettimeofday.c
 $(OUTPUT)/vdso_standalone_test_x86: vdso_standalone_test_x86.c parse_vdso.c
        $(CC) $(CFLAGS) $(CFLAGS_vdso_standalone_test_x86) \
                vdso_standalone_test_x86.c parse_vdso.c \

diff --git a/tools/testing/selftests/vDSO/vdso_test.c b/tools/testing/selftests/vDSO/vdso_test.c
deleted file mode 100644 (file)
index 719d5a6..0000000
--- a/tools/testing/selftests/vDSO/vdso_test.c
+++ /dev/null
@@ -1,68 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0-only
-/*
- * vdso_test.c: Sample code to test parse_vdso.c
- * Copyright (c) 2014 Andy Lutomirski
- *
- * Compile with:
- * gcc -std=gnu99 vdso_test.c parse_vdso.c
- *
- * Tested on x86, 32-bit and 64-bit.  It may work on other architectures, too.
- */
-
-#include <stdint.h>
-#include <elf.h>
-#include <stdio.h>
-#include <sys/auxv.h>
-#include <sys/time.h>
-
-#include "../kselftest.h"
-
-extern void *vdso_sym(const char *version, const char *name);
-extern void vdso_init_from_sysinfo_ehdr(uintptr_t base);
-extern void vdso_init_from_auxv(void *auxv);
-
-/*
- * ARM64's vDSO exports its gettimeofday() implementation with a different
- * name and version from other architectures, so we need to handle it as
- * a special case.
- */
-#if defined(__aarch64__)
-const char *version = "LINUX_2.6.39";
-const char *name = "__kernel_gettimeofday";
-#else
-const char *version = "LINUX_2.6";
-const char *name = "__vdso_gettimeofday";
-#endif
-
-int main(int argc, char **argv)
-{
-       unsigned long sysinfo_ehdr = getauxval(AT_SYSINFO_EHDR);
-       if (!sysinfo_ehdr) {
-               printf("AT_SYSINFO_EHDR is not present!\n");
-               return KSFT_SKIP;
-       }
-
-       vdso_init_from_sysinfo_ehdr(getauxval(AT_SYSINFO_EHDR));
-
-       /* Find gettimeofday. */
-       typedef long (*gtod_t)(struct timeval *tv, struct timezone *tz);
-       gtod_t gtod = (gtod_t)vdso_sym(version, name);
-
-       if (!gtod) {
-               printf("Could not find %s\n", name);
-               return KSFT_SKIP;
-       }
-
-       struct timeval tv;
-       long ret = gtod(&tv, 0);
-
-       if (ret == 0) {
-               printf("The time is %lld.%06lld\n",
-                      (long long)tv.tv_sec, (long long)tv.tv_usec);
-       } else {
-               printf("%s failed\n", name);
-               return KSFT_FAIL;
-       }
-
-       return 0;
-}

diff --git a/tools/testing/selftests/vDSO/vdso_test_gettimeofday.c b/tools/testing/selftests/vDSO/vdso_test_gettimeofday.c
new file mode 100644 (file)
index 0000000..511c0dc
--- /dev/null
+++ b/tools/testing/selftests/vDSO/vdso_test_gettimeofday.c
@@ -0,0 +1,69 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * vdso_test_gettimeofday.c: Sample code to test parse_vdso.c and
+ *                           vDSO gettimeofday()
+ * Copyright (c) 2014 Andy Lutomirski
+ *
+ * Compile with:
+ * gcc -std=gnu99 vdso_test_gettimeofday.c parse_vdso_gettimeofday.c
+ *
+ * Tested on x86, 32-bit and 64-bit.  It may work on other architectures, too.
+ */
+
+#include <stdint.h>
+#include <elf.h>
+#include <stdio.h>
+#include <sys/auxv.h>
+#include <sys/time.h>
+
+#include "../kselftest.h"
+
+extern void *vdso_sym(const char *version, const char *name);
+extern void vdso_init_from_sysinfo_ehdr(uintptr_t base);
+extern void vdso_init_from_auxv(void *auxv);
+
+/*
+ * ARM64's vDSO exports its gettimeofday() implementation with a different
+ * name and version from other architectures, so we need to handle it as
+ * a special case.
+ */
+#if defined(__aarch64__)
+const char *version = "LINUX_2.6.39";
+const char *name = "__kernel_gettimeofday";
+#else
+const char *version = "LINUX_2.6";
+const char *name = "__vdso_gettimeofday";
+#endif
+
+int main(int argc, char **argv)
+{
+       unsigned long sysinfo_ehdr = getauxval(AT_SYSINFO_EHDR);
+       if (!sysinfo_ehdr) {
+               printf("AT_SYSINFO_EHDR is not present!\n");
+               return KSFT_SKIP;
+       }
+
+       vdso_init_from_sysinfo_ehdr(getauxval(AT_SYSINFO_EHDR));
+
+       /* Find gettimeofday. */
+       typedef long (*gtod_t)(struct timeval *tv, struct timezone *tz);
+       gtod_t gtod = (gtod_t)vdso_sym(version, name);
+
+       if (!gtod) {
+               printf("Could not find %s\n", name);
+               return KSFT_SKIP;
+       }
+
+       struct timeval tv;
+       long ret = gtod(&tv, 0);
+
+       if (ret == 0) {
+               printf("The time is %lld.%06lld\n",
+                      (long long)tv.tv_sec, (long long)tv.tv_usec);
+       } else {
+               printf("%s failed\n", name);
+               return KSFT_FAIL;
+       }
+
+       return 0;
+}