tree 79587d30dda7acb00545333067596dfcfa11bdb6
parent e300c4e4eabe3388b730efe35561e54f1c306710
author Victor Hsieh <victorhsieh@google.com> 1621891315 -0700
committer Treehugger Robot <treehugger-gerrit@google.com> 1623338522 +0000

Add runtime option -Xbootclasspathfds: for pre-opened fds

The new option allows the client to pass a pre-opened fds to the
runtime. The number of elements must match the number of BCP jars
specified in -Xbootclasspath. An fd of negative number is a valid
option, in such case the runtime will still open the jar in the
corresponding path in -Xbootclasspath.

Example: -Xbootclasspathfds:10:11:-1:12

The option is currently only used in "unstarted runtime", but will also
be used elsewhere in the follow-up changes.

Bug: 187327262
Test: patch odrefresh to use the option, no longer seeing such openat(2)
Test: m test-art-host-gtest

Change-Id: I1bebbd80136419c03ac1309a8cb8229a0fd69838