92d8b2320a
PR_GET_DUMPABLE is used by an application to indicate whether or not core dumps / PTRACE_ATTACH should work. Security sensitive applications often set PR_SET_DUMPABLE to 0 to disable core dumps, to avoid leaking sensitive memory to persistent storage. Similarly, they also set PR_SET_DUMPABLE to zero to prevent PTRACE_ATTACH from working, again to avoid leaking the contents of sensitive memory. Honor PR_GET_DUMPABLE when connecting to debuggerd. If an application has said it doesn't want its memory dumped, then we shouldn't ask debuggerd to dump memory on its behalf. FORTIFY_SOURCE tests: Modify the fortify_source tests to set PR_SET_DUMPABLE=0. This reduces the total runtime of /data/nativetest/bionic-unit-tests/bionic-unit-tests32 from approx 53 seconds to 25 seconds. There's no need to connect to debuggerd when running these tests. Bug: 16513137 (cherry picked from commit be0e43b77676338fd5e6a82c9cc2b6302d579de2) Change-Id: I6e1a9bce564e94fc19893d639b15f38c549cabfa