Fix getcwd use to work on old devices.

Apparently not all versions of Android supported the getcwd(3)
extension of mallocing memory when passed NULL, so this would create
the string "(null)/libbar.so" on JB.

Change-Id: I0174762c53337577a25893402fe74ae3481539f5

1 files changed, 9 insertions, 3 deletions

diff --git a/tests/device/whole-static-libs/jni/main.c b/tests/device/whole-static-libs/jni/main.c
index 67a4bc775..f4a3317eb 100644
--- a/tests/device/whole-static-libs/jni/main.c
+++ b/tests/device/whole-static-libs/jni/main.c
@@ -9,10 +9,16 @@
 
 int main(int argc, char *argv[])
 {
-    void*  lib;
+    char cwd[PATH_MAX];
+    if (getcwd(cwd, sizeof(cwd)) == NULL) {
+        perror("getcwd");
+        return 1;
+    }
+
     char buf[PATH_MAX];
-    sprintf(buf, "%s/libbar.so", getcwd(NULL, 0));
-    lib = dlopen(buf, RTLD_NOW);
+    sprintf(buf, "%s/libbar.so", cwd);
+
+    void* lib = dlopen(buf, RTLD_NOW);
     if (lib == NULL) {
         fprintf(stderr, "Could not dlopen(\"libbar.so\"): %s\n", dlerror());
         return 1;