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Russ Cox cd94cabad6 cmd/ld: external linking fixes for linux/386
The sticking point on 386 has been the "PC relative" relocations
used to point the garbage collection metadata at the type info.
These aren't in the code segment, and I don't trust that the linker
isn't doing something special that would be okay in code but
not when interpreting the pointers as data (for example, a PLT
jump table would be terrible).

Solve the problem in two steps:

1. Handle "PC relative" relocations within a section internally,
so that the external linker never sees them.

2. Move the gcdata and gcbss tables into the rodata section,
where the type information lives, so that the relocations can
be handled internally.

(To answer the obvious question, we make the gc->type
references relative so that they need not be relocated
individually when generating a shared object file.)

R=golang-dev, iant
CC=golang-dev
https://golang.org/cl/7629043
2013-03-08 20:22:38 -08:00
api api: update next.txt 2013-03-06 11:16:58 -08:00
doc effective_go.html: add a section on type assertions 2013-03-08 13:53:17 -08:00
include lib9: add mktempdir, removeall, runprog 2013-03-06 15:48:28 -05:00
lib cmd/godoc: add support for display Notes parsed by pkg/go/doc 2013-02-25 20:34:09 -08:00
misc misc/emacs: Rewrite gofmt to use own function for applying patch instead of using diff-mode. 2013-03-07 13:12:37 -05:00
src cmd/ld: external linking fixes for linux/386 2013-03-08 20:22:38 -08:00
test cmd/8g: fix code generation of int64(0) == int64(0). 2013-03-07 21:47:45 +01:00
.hgignore build: update Makefile to track source code dependencies better 2012-03-13 03:31:11 +08:00
.hgtags tag go1.0.3 2012-09-24 13:15:33 -05:00
AUTHORS A+C: Ewan Chou (individual CLA) 2013-03-06 15:20:24 -05:00
CONTRIBUTORS C: add Keith Randall (Google CLA) 2013-03-07 12:46:44 -08:00
favicon.ico godoc: update favicon 2012-10-11 17:02:36 +11:00
LICENSE doc: update licensing text one more time 2012-03-27 15:09:13 +11:00
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This is the source code repository for the Go programming language.  

For documentation about how to install and use Go,
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After installing Go, you can view a nicely formatted
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and then visiting http://localhost:6060/doc/install.html.

Unless otherwise noted, the Go source files are distributed
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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 README).  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.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
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See doc/install.html for more details.