commit 9ce28844db7cf80ee8cf7c88dab23b666eaab739
author Christopher Ferris <cferris@google.com> Thu Oct 25 12:11:39 2018 -0700
committer Christopher Ferris <cferris@google.com> Tue Oct 30 09:21:16 2018 -0700
tree a6dc35217992637cf0102c4beba99c6fdcd1ffdc
parent e898a17e8f2bf30506642be8106b1f8a6de61151

Update to v4.19 kernel headers.

Test: Builds and boots.
Change-Id: I99a9ed79666e143b47f02ca4e59eed94f69b7e4a
(cherry picked from commit a981e2e52e2e95a65fa9c9b6fb16dcb4c83dd576)

libc/kernel/uapi/linux/perf_event.h

diff --git a/libc/kernel/uapi/linux/perf_event.h b/libc/kernel/uapi/linux/perf_event.h
index dc1e32c..c106b5b 100644
--- a/libc/kernel/uapi/linux/perf_event.h
+++ b/libc/kernel/uapi/linux/perf_event.h
@@ -100,6 +100,7 @@
   PERF_SAMPLE_REGS_INTR = 1U << 18,
   PERF_SAMPLE_PHYS_ADDR = 1U << 19,
   PERF_SAMPLE_MAX = 1U << 20,
+  __PERF_SAMPLE_CALLCHAIN_EARLY = 1ULL << 63,
 };
 enum perf_branch_sample_type_shift {
   PERF_SAMPLE_BRANCH_USER_SHIFT = 0,