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Commit Graph

6 Commits

Author SHA1 Message Date
Ian Lance Taylor
e45aebd6dd cmd/go: install headers for c-archive/c-shared cgo exports
When
  using -buildmode=c-archive or c-shared, and
  when installing packages that use cgo, and
  when those packages export some functions via //export comments,
then
  for each such package, install a pkg.h header file that declares the
  functions.

This permits C code to #include the header when calling the Go
functions.

This is a little awkward to use when there are multiple packages that
export functions, as you have to "go install" your c-archive/c-shared
object and then pull it out of the package directory.  When compiling
your C code you have to -I pkg/$GOOS_$GOARCH.  I haven't thought of
any more convenient approach.  It's simpler when only the main package
has exported functions.

When using c-shared you currently have to use a _shared suffix in the
-I option; it would be nice to fix that somehow.

Change-Id: I5d8cf08914b7d3c2b194120c77791d2732ffd26e
Reviewed-on: https://go-review.googlesource.com/9798
Reviewed-by: David Crawshaw <crawshaw@golang.org>
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2015-05-07 17:39:56 +00:00
Dave Cheney
ccaaf1f134 misc/cgo/testcshared, misc/cgo/testshared: fix clang warnings and errors
Fix several warnings generated on the linux-amd64-clang builder
and make it clear to clang that -znow is a linker only flag.

Tested with

    env CC=clang-3.5 ./all.bash
    env CC=gcc-4.8 ./all.bash

Change-Id: I5ca7366ba8bf6221a36d25a2157dda4b4f3e16fa
Reviewed-on: https://go-review.googlesource.com/9523
Reviewed-by: Ian Lance Taylor <iant@golang.org>
2015-04-30 17:08:15 +00:00
Hyang-Ah Hana Kim
e9a89b80b6 misc/cgo/testcshared: make test.bash resilient against noise.
Instead of comparing against the entire output that may include
verbose warning messages, use the last line of the output and check
it includes the expected success message (PASS).

Change-Id: Iafd583ee5529a8aef5439b9f1f6ce0185e4b1331
Reviewed-on: https://go-review.googlesource.com/9304
Reviewed-by: David Crawshaw <crawshaw@golang.org>
2015-04-24 18:32:24 +00:00
Hyang-Ah Hana Kim
8566979972 misc/cgo/testcshared: add a c-shared test for android/arm.
- main3.c tests main.main is exported when compiled for GOOS=android.
- wait longer for main2.c (it's slow on android/arm)
- rearranged test.bash

Fixes #10070.

Change-Id: I6e5a98d1c5fae776afa54ecb5da633b59b269316
Reviewed-on: https://go-review.googlesource.com/9296
Reviewed-by: David Crawshaw <crawshaw@golang.org>
Run-TryBot: Hyang-Ah Hana Kim <hyangah@gmail.com>
2015-04-24 16:32:31 +00:00
Ian Lance Taylor
e589e08014 misc/cgo/testcshared: add c-shared test with no exports
The purpose of this test is to make sure that -buildmode=c-shared
works even when the shared library can be built without invoking cgo.

Change-Id: Id6f95af755992b209aff770440ca9819b74113ab
Reviewed-on: https://go-review.googlesource.com/9166
Reviewed-by: David Crawshaw <crawshaw@golang.org>
2015-04-21 20:50:23 +00:00
Hyang-Ah Hana Kim
92189a2be2 misc/cgo/testcshared: test -buildmode=c-shared
Followed the same test pattern in misc/cgo/testcarchive.

Change-Id: I2f863b5c24a28f0b38b0128ed3e8a92c17fb5b9f
Reviewed-on: https://go-review.googlesource.com/8985
Reviewed-by: David Crawshaw <crawshaw@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
2015-04-17 16:16:44 +00:00