123510bf83
On NetBSD a signal handler returns to the kernel by calling the setcontext system call with the context passed to the signal handler. The implementation of runtime·sigreturn_tramp for amd64, copied from the NetBSD libc, expects that context address to be in r15. That works in the NetBSD libc because r15 is preserved across the call to the signal handler. It fails in the Go library because r15 is not preserved. There are various ways to fix this; this one uses the simple approach, essentially identical to the one in the NetBSD libc, of preserving r15 across the signal handler proper. Looking at the code for 386 and arm suggests that they are OK. However, I have not actually tested them. Update #14052. Change-Id: I2b516b1d05fe5d3b8911e65ca761d621dc37fa1b Reviewed-on: https://go-review.googlesource.com/18815 Run-TryBot: Ian Lance Taylor <iant@golang.org> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org> |
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The Go Programming Language
Go is an open source programming language that makes it easy to build simple, reliable, and efficient software.
For documentation about how to install and use Go, visit https://golang.org/ or load doc/install-source.html in your web browser.
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Binary Distribution Notes
If you have just untarred a binary Go distribution, you need to set the environment variable $GOROOT to the full path of the go directory (the one containing this file). You can omit the variable if you unpack it into /usr/local/go, or if you rebuild from sources by running all.bash (see doc/install-source.html). You should also add the Go binary directory $GOROOT/bin to your shell's path.
For example, if you extracted the tar file into $HOME/go, you might put the following in your .profile:
export GOROOT=$HOME/go
export PATH=$PATH:$GOROOT/bin
See https://golang.org/doc/install or doc/install.html for more details.