syscalls: add selftest for execveat(2)

Signed-off-by: David Drysdale <[email protected]> Cc: Meredydd Luff <[email protected]> Cc: Shuah Khan <[email protected]> Cc: "Eric W. Biederman" <[email protected]> Cc: Andy Lutomirski <[email protected]> Cc: Alexander Viro <[email protected]> Cc: Thomas Gleixner <[email protected]> Cc: Ingo Molnar <[email protected]> Cc: "H. Peter Anvin" <[email protected]> Cc: Kees Cook <[email protected]> Cc: Arnd Bergmann <[email protected]> Cc: Rich Felker <[email protected]> Cc: Christoph Hellwig <[email protected]> Cc: Michael Kerrisk <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
dtwlin · Dec 13, 2014 · c9b26b8 · c9b26b8
1 parent 27d6ec7
commit c9b26b8
Show file tree

Hide file tree

Showing 4 changed files with 432 additions and 0 deletions.
diff --git a/tools/testing/selftests/Makefile b/tools/testing/selftests/Makefile
@@ -15,6 +15,7 @@ TARGETS += user
 TARGETS += sysctl
 TARGETS += firmware
 TARGETS += ftrace
+TARGETS += exec
 
 TARGETS_HOTPLUG = cpu-hotplug
 TARGETS_HOTPLUG += memory-hotplug

diff --git a/tools/testing/selftests/exec/.gitignore b/tools/testing/selftests/exec/.gitignore
@@ -0,0 +1,9 @@
+subdir*
+script*
+execveat
+execveat.symlink
+execveat.moved
+execveat.path.ephemeral
+execveat.ephemeral
+execveat.denatured
+xxxxxxxx*
diff --git a/tools/testing/selftests/exec/Makefile b/tools/testing/selftests/exec/Makefile
@@ -0,0 +1,25 @@
+CC = $(CROSS_COMPILE)gcc
+CFLAGS = -Wall
+BINARIES = execveat
+DEPS = execveat.symlink execveat.denatured script subdir
+all: $(BINARIES) $(DEPS)
+
+subdir:
+	mkdir -p $@
+script:
+	echo '#!/bin/sh' > $@
+	echo 'exit $$*' >> $@
+	chmod +x $@
+execveat.symlink: execveat
+	ln -s -f $< $@
+execveat.denatured: execveat
+	cp $< $@
+	chmod -x $@
+%: %.c
+	$(CC) $(CFLAGS) -o $@ $^
+
+run_tests: all
+	./execveat
+
+clean:
+	rm -rf $(BINARIES) $(DEPS) subdir.moved execveat.moved xxxxx*