tree b957f5e34565d1a9ad6ea1e64e002109a7ec3f69
parent a853a2f8ec284776b7b6cf0d39c4f339889d86b9
author Josh Gao <jmgao@google.com> 1555445828 -0700
committer Josh Gao <jmgao@google.com> 1555445828 -0700

debuggerd: call setsid in our children.

There appears to be a kernel bug that causes SIGHUP and SIGCONT to be
sent to the parent process group we spawn from if the process group
contains stopped jobs (e.g. the parent itself, because of wait_for_gdb).

Call setsid in all of our children to prevent this from happening.

Bug: http://b/31124563
Test: adb shell 'setprop debug.debuggerd.wait_for_gdb 1; killall -ABRT surfaceflinger'
Change-Id: I1a48d70886880a5bfbe2deb80d48deece55faf09