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go / go / 3e6334e2e059505aa3ebd16185b03f7a9cc88d23
commit3e6334e2e059505aa3ebd16185b03f7a9cc88d23[log] [tgz]
authorMichael Hudson-Doyle <michael.hudson@canonical.com>Wed Sep 23 15:46:00 2015 +1200
committerMichael Hudson-Doyle <michael.hudson@canonical.com>Tue Oct 06 07:05:51 2015 +0000
treeaf166bf1babf95308e4ef939daf451639c3f3503
parent007ee631d6e0fa27973fd9f40f8fbae98547181a [diff]
cmd/link: set the ELF headers of ARM executables that use cgo correctly

It is generally expected that the ELF flags of a dynamically linked executable
and the libraries it links against match. Go's linker currently always produces
executables with flags that do not declare a float abi (hard, soft) at all, but
when cgo is involved it is unlikely that this matches the system libraries
being linked against -- really the decision about ABI is made by the C compiler
during the invocation of cgo.

This change is basically a port of the code from binutils that parses the
".ARM.attributes" section to check for the tag that declares that the code is
built for the hard-float ABI.

Fixes #7094

Change-Id: I737c8f3b5ed4af545cfc3e86722d03eb83083402
Reviewed-on: https://go-review.googlesource.com/14860
Run-TryBot: Michael Hudson-Doyle <michael.hudson@canonical.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Minux Ma <minux@golang.org>
2 files changed
tree: af166bf1babf95308e4ef939daf451639c3f3503
  1. api/
  2. doc/
  3. lib/
  4. misc/
  5. src/
  6. test/
  7. .gitattributes
  8. .gitignore
  9. AUTHORS
  10. CONTRIBUTING.md
  11. CONTRIBUTORS
  12. favicon.ico
  13. LICENSE
  14. PATENTS
  15. README.md
  16. robots.txt
README.md

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