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Anisse Astier ed36d20daa package/go: fix building host go toolchain when target isn't supported
The go toolchain can cross-compile by default. So most of the time,
building a toolchain that supports a target, allows us to also build go
binaries for the host. This is how support for host go packages was
added: we use the same toolchain that was initially built only for
target.

But we might want to build a go binary for the host, when compiling a
target for which go isn't supported. Then, building host-go will fail:
by default, we build go for a specific target, and give the toolchain
bootstrap scripts the cross compiler we'll use.

This change modifies this behaviour: we only assume the go toolchain is
cross-capable if we know the current target is supported. Otherwise this
is a simple host go tool. We don't need to set any of the options needed
for cross-compilation in that case.

Thus, only set all the target-specific go options under a condition that
the target arch is supported. The only option we still set is
HOST_GO_CGO_ENABLED, and we always set it to enabled.

It was also considered to create a separate package to build the
go-for-host compiler which would be used for host-go-packages, but that
would lead to a lot of duplication and is completely unnecessary.

Fixes:
http://autobuild.buildroot.net/results/98b9c7aaff2af4d19adfedac00b768d92530ce94
http://autobuild.buildroot.net/results/bed228995ce3778720f991df9b41345a7c724a46
http://autobuild.buildroot.net/results/3b3ea148165b96513ea511ee0d4adb334a6afac8

Signed-off-by: Anisse Astier <anisse@astier.eu>
Signed-off-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>
Reviewed-by: Anisse Astier <anisse@astier.eu>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
2019-04-17 09:00:19 +02:00
arch arch/mips: add (Marvell) Octeon III processor 2019-02-04 17:30:18 +01:00
board configs/asus_tinker_rk3288: adjust U-Boot config to boot larger kernel image 2019-04-15 21:37:43 +02:00
boot boot/opensbi: add hash file 2019-04-10 11:54:51 +02:00
configs configs/raspberrypi*: bump kernel version to 5eeff139ea 2019-04-16 22:42:46 +02:00
docs docs/website: update for 2019.02.1 2019-03-30 09:18:11 +01:00
fs core: add per-package and per-filesystem show-info 2019-04-15 23:47:22 +02:00
linux linux: simplify LINUX_BUILD_CMDS 2019-04-13 17:15:19 +02:00
package package/go: fix building host go toolchain when target isn't supported 2019-04-17 09:00:19 +02:00
support infra/utils: add helper to generate comma-separated lists 2019-04-15 23:24:13 +02:00
system system/skeleton: remove password expiration from shadow 2019-03-20 23:06:29 +01:00
toolchain toolchain/toolchain-external-custom: support Linux 5.1 2019-04-07 09:10:52 +02:00
utils utils/genrandconfig: test configurations with BR2_SYSTEM_ENABLE_NLS 2019-04-14 11:26:58 +02:00
.defconfig
.flake8 .flake8: fix check for 80/132 columns 2019-04-10 12:31:33 +02:00
.gitignore
.gitlab-ci.yml .gitlab-ci.yml: reorder jobs 2019-04-13 15:28:55 +02:00
.gitlab-ci.yml.in .gitlab-ci.yml: reorder jobs 2019-04-13 15:28:55 +02:00
CHANGES Update for 2019.02.1 2019-03-30 09:14:19 +01:00
Config.in toolchain: set the ssp gcc option in kconfig 2019-03-13 00:01:55 +01:00
Config.in.legacy package/lunit: remove package 2019-04-03 21:35:46 +02:00
COPYING
DEVELOPERS package/intel-mediasdk: new package 2019-04-16 22:13:36 +02:00
Makefile core: add per-package and per-filesystem show-info 2019-04-15 23:47:22 +02:00
Makefile.legacy
README

Buildroot is a simple, efficient and easy-to-use tool to generate embedded
Linux systems through cross-compilation.

The documentation can be found in docs/manual. You can generate a text
document with 'make manual-text' and read output/docs/manual/manual.text.
Online documentation can be found at http://buildroot.org/docs.html

To build and use the buildroot stuff, do the following:

1) run 'make menuconfig'
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3) run 'make'
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5) find the kernel, bootloader, root filesystem, etc. in output/images

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