commit 7839c173f1d720e5c2d23b7d32de51675e4ef8cc
author Lokesh Gidra <lokeshgidra@google.com> Thu Mar 11 08:00:26 2021 -0800
committer Lokesh Gidra <lokeshgidra@google.com> Thu Mar 11 19:30:08 2021 +0000
tree 1a72c6cd049245cf094b9f6eaec53506a7f7f1af
parent 4b6a29dbe930ef00d4a062b86e0213d37a0d21a2

Add userfaultfd syscall in SECCOMP allowlist

Enable userfaultfd syscall to be used by ART-GC.

Bug: 160737021
Test: manually tested by invoking userfaultfd syscall in ART
Change-Id: I9f98402a96bb8363a1e5fa49dbadbb37dc70d561

libc/SECCOMP_ALLOWLIST_COMMON.TXT

diff --git a/libc/SECCOMP_ALLOWLIST_COMMON.TXT b/libc/SECCOMP_ALLOWLIST_COMMON.TXT
index 20c1441..6650d7e 100644
--- a/libc/SECCOMP_ALLOWLIST_COMMON.TXT
+++ b/libc/SECCOMP_ALLOWLIST_COMMON.TXT
@@ -72,3 +72,5 @@
 int rt_sigtimedwait_time64(const sigset64_t*, siginfo_t*, const timespec64*, size_t) lp32
 int futex_time64(int*, int, int, const timespec64*, int*, int) lp32
 int sched_rr_get_interval_time64(pid_t, timespec64*) lp32
+# Since Linux 5.4, not in glibc. Probed for and conditionally used by ART.
+int userfaultfd(int) all