From: David Crawshaw <crawshaw@golang.org>
Date: Sat, 28 Feb 2015 22:06:06 +0000 (-0500)
Subject: runtime/cgo: no-op getwd call as test breakpoint
X-Git-Tag: go1.5beta1~1812
X-Git-Url: http://www.git.cypherpunks.su/?a=commitdiff_plain;h=2dbee8919c5c0e19e26e9d80d9135c367d2bf4cf;p=gostls13.git

runtime/cgo: no-op getwd call as test breakpoint

This is to be used by an lldb script inside go_darwin_arm_exec to pause
the execution of tests on iOS so the working directory can be adjusted
into something resembling a GOROOT.

Change-Id: I69ea2d4d871800ae56634b23ffa48583559ddbc6
Reviewed-on: https://go-review.googlesource.com/6363
Reviewed-by: Minux Ma <minux@golang.org>
---

diff --git a/src/runtime/cgo/gcc_darwin_arm.c b/src/runtime/cgo/gcc_darwin_arm.c
index 7bb7f88a86..aa7f43832a 100644
--- a/src/runtime/cgo/gcc_darwin_arm.c
+++ b/src/runtime/cgo/gcc_darwin_arm.c
@@ -123,6 +123,11 @@ init_working_dir()
 	if (chdir(dir) != 0) {
 		fprintf(stderr, "runtime/cgo: chdir(%s) failed\n", dir);
 	}
+
+	// No-op to set a breakpoint on, immediately after the real chdir.
+	// Gives the test harness in go_darwin_arm_exec (which uses lldb) a
+	// chance to move the working directory.
+	getwd(dir);
 }
 
 void