This test does a fork syscall inside a transaction. Basic sniff test to see
if we can enter the kernel during a transaction.
Signed-off-by: Rashmica Gupta <rashm...@gmail.com>
---
tools/testing/selftests/powerpc/tm/.gitignore | 1 +
tools/testing/selftests/powerpc/tm/Makefile | 2 +-
tools/testing/selftests/powerpc/tm/tm-fork.c | 42 +++++++++++++++++++++++++++
3 files changed, 44 insertions(+), 1 deletion(-)
create mode 100644 tools/testing/selftests/powerpc/tm/tm-fork.c
diff --git a/tools/testing/selftests/powerpc/tm/.gitignore
b/tools/testing/selftests/powerpc/tm/.gitignore
index 7d0f14b8cb2e..d216eddcd493 100644
--- a/tools/testing/selftests/powerpc/tm/.gitignore
+++ b/tools/testing/selftests/powerpc/tm/.gitignore
@@ -3,3 +3,4 @@ tm-syscall
tm-signal-msr-resv
tm-signal-stack
tm-vmxcopy
+tm-fork
diff --git a/tools/testing/selftests/powerpc/tm/Makefile
b/tools/testing/selftests/powerpc/tm/Makefile
index 737f72c964e6..2db475b12720 100644
--- a/tools/testing/selftests/powerpc/tm/Makefile
+++ b/tools/testing/selftests/powerpc/tm/Makefile
@@ -1,4 +1,4 @@
-TEST_PROGS := tm-resched-dscr tm-syscall tm-signal-msr-resv tm-signal-stack
tm-vmxcopy
+TEST_PROGS := tm-resched-dscr tm-syscall tm-signal-msr-resv tm-signal-stack
tm-vmxcopy tm-fork
all: $(TEST_PROGS)
diff --git a/tools/testing/selftests/powerpc/tm/tm-fork.c
b/tools/testing/selftests/powerpc/tm/tm-fork.c
new file mode 100644
index 000000000000..8d48579b7778
--- /dev/null
+++ b/tools/testing/selftests/powerpc/tm/tm-fork.c
@@ -0,0 +1,42 @@
+/*
+ * Copyright 2015, Michael Neuling, IBM Corp.
+ * Licensed under GPLv2.
+ *
+ * Edited: Rashmica Gupta, Nov 2015
+ *
+ * This test does a fork syscall inside a transaction. Basic sniff test
+ * to see if we can enter the kernel during a transaction.
+ */
+
+#include <errno.h>
+#include <inttypes.h>
+#include <pthread.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+
+#include "utils.h"
+#include "tm.h"
+
+int test_fork(void)
+{
+ SKIP_IF(!have_htm());
+
+ asm __volatile__(
+ "tbegin.;"
+ "blt 1f; "
+ "li 0, 2;" /* fork syscall */
+ "sc ;"
+ "tend.;"
+ "1: ;"
+ : : : "memory", "r0");
+ /* If we reach here, we've passed. Otherwise we've probably crashed
+ * the kernel */
+
+ return 0;
+}
+
+int main(int argc, char *argv[])
+{
+ return test_harness(test_fork, "tm_fork");
+}
--
2.5.0
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