Merge "Tell bionic when we overwrite argv[0]."
diff --git a/core/jni/AndroidRuntime.cpp b/core/jni/AndroidRuntime.cpp
index 6c80200..b30fed6 100644
--- a/core/jni/AndroidRuntime.cpp
+++ b/core/jni/AndroidRuntime.cpp
@@ -342,6 +342,8 @@
}
void AndroidRuntime::setArgv0(const char* argv0, bool setProcName) {
+ // Set the kernel's task name, for as much of the name as we can fit.
+ // The kernel's TASK_COMM_LEN minus one for the terminating NUL == 15.
if (setProcName) {
int len = strlen(argv0);
if (len < 15) {
@@ -350,8 +352,14 @@
pthread_setname_np(pthread_self(), argv0 + len - 15);
}
}
+
+ // Directly change the memory pointed to by argv[0].
memset(mArgBlockStart, 0, mArgBlockLength);
strlcpy(mArgBlockStart, argv0, mArgBlockLength);
+
+ // Let bionic know that we just did that, because __progname points
+ // into argv[0] (https://issuetracker.google.com/152893281).
+ setprogname(mArgBlockStart);
}
status_t AndroidRuntime::callMain(const String8& className, jclass clazz,