42bb59a372
This extends the cgo changes in http://golang.org/cl/8094 to gccgo. It also adds support for setting runtime_iscgo correctly for gccgo; the gc runtime bases the variable on the runtime/cgo package, but gccgo has no equivalent to that package. The go tool supports -buildmode=c-archive for gccgo by linking all the Go objects together using -r. For convenience this object is then put into an archive file. The go tool now passes -fsplit-stack when building C code for gccgo on 386 and amd64. This is required for using -r and will also cut down on unnecessary stack splits. The go tool no longer applies standard package cgo LDFLAGS when using gccgo. This is mainly to avoid getting confused by the LDFLAGS in the runtime/cgo package that gccgo does not use. Change-Id: I1d0865b2a362818a033ca9e9e901d0ce250784e7 Reviewed-on: https://go-review.googlesource.com/9511 Reviewed-by: David Crawshaw <crawshaw@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.
Our canonical Git repository is located at https://go.googlesource.com/go. There is a mirror of the repository at https://github.com/golang/go.
Please report issues here: https://golang.org/issue/new
Go is the work of hundreds of contributors. We appreciate your help!
To contribute, please read the contribution guidelines: https://golang.org/doc/contribute.html
Please note that we do not use pull requests.
Unless otherwise noted, the Go source files are distributed under the BSD-style license found in the LICENSE file.
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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.