| commit | 3e7abf82e3e0614f7d8163053d944dc59d8b9247 | [log] [tgz] |
|---|---|---|
| author | Lynn Boger <laboger@linux.vnet.ibm.com> | Tue Aug 08 13:45:41 2017 -0400 |
| committer | Lynn Boger <laboger@linux.vnet.ibm.com> | Wed Aug 09 17:11:38 2017 +0000 |
| tree | d4e0f1af4a2d46b863c2d734e13e0fbc72c95a54 | |
| parent | 53f2d534504f2804ae7ccea45b5a8d6f1e693147 [diff] |
cmd/go,cmd/link: support buildmode c-shared on ppc64le This change enables buildmode c-shared on ppc64le. A bug was fixed in runtime/rt0_linux_ppc64le.s that was necessary to make this work. In _rt0_ppc64le_linux_lib, there is code to store the value of r2 onto the caller's stack. However, if this file is compiled using a build mode that maintains the TOC address in r2, then instructions will be inserted at the beginning of this function to generate the r2 value for the callee, not the caller. That means the r2 value for the callee is stored onto the caller's stack. If caller and callee don't have the same r2 values, then the caller will restore the wrong r2 value after it returns. This situation can happen when using dlopen since the caller of this function will be in ld64.so and will definitely have a different TOC. Updates #20756 Change-Id: I6e165e0d0716e73721bbbcc520e8302e4856e3ba Reviewed-on: https://go-review.googlesource.com/53890 Reviewed-by: Ian Lance Taylor <iant@golang.org>
Go is an open source programming language that makes it easy to build simple, reliable, and efficient software.
Gopher image by Renee French, licensed under Creative Commons 3.0 Attributions license.
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.
Unless otherwise noted, the Go source files are distributed under the BSD-style license found in the LICENSE file.
Official binary distributions are available at https://golang.org/dl/.
After downloading a binary release, visit https://golang.org/doc/install or load doc/install.html in your web browser for installation instructions.
If a binary distribution is not available for your combination of operating system and architecture, visit https://golang.org/doc/install/source or load doc/install-source.html in your web browser for source installation instructions.
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
Note that the Go project does not use GitHub pull requests, and that we use the issue tracker for bug reports and proposals only. See https://golang.org/wiki/Questions for a list of places to ask questions about the Go language.