From a20596752cbd4088d87c8651850de9286a8e9d72 Mon Sep 17 00:00:00 2001
From: Ray Essick <essick@google.com>
Date: Sun, 12 Jul 2020 20:28:07 -0700
Subject: [PATCH] extend syscall minijail for clang code coverage

cutover to clang-based code coverage uses extra system call (ftruncate)
when writing coverage data. exposed while generating coverage for media.extractor.

Bug: 160917521
Test: build, boot, kill -37 extractors for {arm,x86}x{32,64}
Change-Id: I555b168c7aab43caa590df951861b92e8fa14bc3
---
 code_coverage/seccomp_policy/code_coverage.arm.policy    | 1 +
 code_coverage/seccomp_policy/code_coverage.arm64.policy  | 1 +
 code_coverage/seccomp_policy/code_coverage.policy.def    | 2 ++
 code_coverage/seccomp_policy/code_coverage.x86.policy    | 1 +
 code_coverage/seccomp_policy/code_coverage.x86_64.policy | 1 +
 5 files changed, 6 insertions(+)

diff --git a/code_coverage/seccomp_policy/code_coverage.arm.policy b/code_coverage/seccomp_policy/code_coverage.arm.policy
index d6784e371..b80910f19 100644
--- a/code_coverage/seccomp_policy/code_coverage.arm.policy
+++ b/code_coverage/seccomp_policy/code_coverage.arm.policy
@@ -6,6 +6,7 @@ openat: 1
 write: 1
 fcntl64: 1
 fstat64: 1
+ftruncate64: 1
 geteuid32: 1
 _llseek: 1
 mmap2: 1
diff --git a/code_coverage/seccomp_policy/code_coverage.arm64.policy b/code_coverage/seccomp_policy/code_coverage.arm64.policy
index 4c3dd2664..7040ea258 100644
--- a/code_coverage/seccomp_policy/code_coverage.arm64.policy
+++ b/code_coverage/seccomp_policy/code_coverage.arm64.policy
@@ -6,6 +6,7 @@ openat: 1
 write: 1
 fcntl: 1
 fstat: 1
+ftruncate: 1
 geteuid: 1
 lseek: 1
 mmap: 1
diff --git a/code_coverage/seccomp_policy/code_coverage.policy.def b/code_coverage/seccomp_policy/code_coverage.policy.def
index f136084bc..599c4a458 100644
--- a/code_coverage/seccomp_policy/code_coverage.policy.def
+++ b/code_coverage/seccomp_policy/code_coverage.policy.def
@@ -22,6 +22,7 @@ write: 1
 #if     defined(__LP64__)
 fcntl: 1
 fstat: 1
+ftruncate: 1
 geteuid: 1
 lseek: 1
 mmap: 1
@@ -29,6 +30,7 @@ rt_sigreturn: 1
 #else
 fcntl64: 1
 fstat64: 1
+ftruncate64: 1
 geteuid32: 1
 _llseek: 1
 mmap2: 1
diff --git a/code_coverage/seccomp_policy/code_coverage.x86.policy b/code_coverage/seccomp_policy/code_coverage.x86.policy
index 24ff8b9c0..f8e0cc0f4 100644
--- a/code_coverage/seccomp_policy/code_coverage.x86.policy
+++ b/code_coverage/seccomp_policy/code_coverage.x86.policy
@@ -6,6 +6,7 @@ openat: 1
 write: 1
 fcntl64: 1
 fstat64: 1
+ftruncate64: 1
 geteuid32: 1
 _llseek: 1
 mmap2: 1
diff --git a/code_coverage/seccomp_policy/code_coverage.x86_64.policy b/code_coverage/seccomp_policy/code_coverage.x86_64.policy
index 308103654..dcf2f9a11 100644
--- a/code_coverage/seccomp_policy/code_coverage.x86_64.policy
+++ b/code_coverage/seccomp_policy/code_coverage.x86_64.policy
@@ -6,6 +6,7 @@ openat: 1
 write: 1
 fcntl: 1
 fstat: 1
+ftruncate: 1
 geteuid: 1
 lseek: 1
 mmap: 1