From 5cfeae293b3290de2da2249f63b1220d0eea6fbe Mon Sep 17 00:00:00 2001
From: Michael Marineau <mike@marineau.org>
Date: Tue, 3 Jan 2017 01:09:55 -0800
Subject: [PATCH] golang: fix runtime init on chromeos (#648)

Android on ChromeOS uses a restrictive seccomp filter that blocks
sched_getaffinity. Simply assume 1 CPU on any error.
---
 packages/golang/build.sh                   |  1 +
 packages/golang/src-runtime-os_linux.patch | 14 ++++++++++++++
 2 files changed, 15 insertions(+)
 create mode 100644 packages/golang/src-runtime-os_linux.patch

diff --git a/packages/golang/build.sh b/packages/golang/build.sh
index ae5176e5..1bd7adea 100644
--- a/packages/golang/build.sh
+++ b/packages/golang/build.sh
@@ -3,6 +3,7 @@ TERMUX_PKG_DESCRIPTION="Go programming language compiler"
 _MAJOR_VERSION=1.7.4
 # Use the ~ deb versioning construct in the future:
 TERMUX_PKG_VERSION=2:${_MAJOR_VERSION}
+TERMUX_PKG_BUILD_REVISION=1
 TERMUX_PKG_SRCURL=https://storage.googleapis.com/golang/go${_MAJOR_VERSION}.src.tar.gz
 TERMUX_PKG_SHA256=4c189111e9ba651a2bb3ee868aa881fab36b2f2da3409e80885ca758a6b614cc
 TERMUX_PKG_FOLDERNAME=go
diff --git a/packages/golang/src-runtime-os_linux.patch b/packages/golang/src-runtime-os_linux.patch
new file mode 100644
index 00000000..e97e7df0
--- /dev/null
+++ b/packages/golang/src-runtime-os_linux.patch
@@ -0,0 +1,14 @@
+diff --git a/src/runtime/os_linux.go b/src/runtime/os_linux.go
+index 542f214..9151aff 100644
+--- a/src/runtime/os_linux.go
++++ b/src/runtime/os_linux.go
+@@ -91,6 +91,9 @@ func getproccount() int32 {
+ 	const maxCPUs = 64 * 1024
+ 	var buf [maxCPUs / (sys.PtrSize * 8)]uintptr
+ 	r := sched_getaffinity(0, unsafe.Sizeof(buf), &buf[0])
++	if r <= 0 {
++		return 1
++	}
+ 	n := int32(0)
+ 	for _, v := range buf[:r/sys.PtrSize] {
+ 		for v != 0 {
-- 
2.11.0