main/go-boostrap: new aport

This is a more minimal version of the main/go aport. It is only supposed
to be used for bootstrapping go1.5 and to clarify this point it is called
go-bootstrap instead of go1.4.

This package doesn't ship a tools or cross subpackage anymore because
doing so would increase the amount of redundant 'code' in this APKBUILD
and neither tools nor cross compilers are needed for bootstrapping
go1.5.

6 files changed, 241 insertions, 0 deletions

diff --git a/main/go-bootstrap/APKBUILD b/main/go-bootstrap/APKBUILD
new file mode 100644
index 0000000000..3a43912bdf
--- /dev/null
+++ b/main/go-bootstrap/APKBUILD
@@ -0,0 +1,94 @@
+# Contributor: Sören Tempel <soeren+alpine@soeren-tempel.net>
+# Contributor: Eivind Uggedal <eivind@uggedal.com>
+# Maintainer: Sören Tempel <soeren+alpine@soeren-tempel.net>
+pkgname=go-bootstrap
+_realname="${pkgname%-*}"
+pkgver=1.4.2
+pkgrel=0
+pkgdesc="Go programming language compiler used for bootstraping"
+url="http://www.golang.org/"
+arch="x86 x86_64 armhf"
+license="BSD"
+replaces="go"
+depends=""
+depends_dev=""
+makedepends="bash perl"
+options="!strip"
+install=""
+subpackages="$pkgname-doc"
+source="
+	https://storage.googleapis.com/golang/go${pkgver}.src.tar.gz
+	no-werror.patch
+	no-pic.patch
+	no-longjmp-redefine.patch
+	fix-arm-hackery.patch
+	default-sc-getpw-r-size-max.patch
+	"
+
+_builddir="$srcdir"/$_realname
+prepare() {
+	cd "$_builddir"
+	for i in $source; do
+		case $i in
+		*.patch) patch -p1 -i "$srcdir"/$i || return 1 ;;
+		esac
+	done
+}
+
+build() {
+	cd "$_builddir/src"
+
+	export GOPATH="$srcdir"
+	export GOROOT="$_builddir"
+	export GOBIN="$GOROOT"/bin
+	export GOROOT_FINAL=/usr/lib/go
+
+	case "$CARCH" in
+	x86)	export GOARCH="386" ;;
+	x86_64)	export GOARCH="amd64" ;;
+	arm*)	export GOARCH="arm" ;;
+	*)	return 1 ;;
+	esac
+
+	unset CC # ccache breaks build for some reason
+	./make.bash --no-clean || return 1
+
+	# FIXME: race and bench tests fail:
+	#PATH="$GOROOT/bin:$PATH" ./run.bash --no-rebuild --banner || return 1
+}
+
+package() {
+	cd "$_builddir"
+	mkdir -p "$pkgdir"/usr/bin "$pkgdir"/usr/lib/go "$pkgdir"/usr/share/doc/go
+
+	# The source needs to be installed due to an upstream
+	# bug (https://github.com/golang/go/issues/2775).
+	# When this is resolved we can split out the source to a
+	# go-doc sub package.
+	cp -a bin pkg src "$pkgdir"/usr/lib/go || return 1
+	cp -r doc misc "$pkgdir"/usr/share/doc/go || return 1
+
+	# Remove tests from /usr/lib/go/src.
+	# Those shouldn't be affacted by the upstream bug (see above).
+	find "$pkgdir"/usr/lib/go \( -type f -a -iname '*_test*' \) \
+		-o \( -type d -name 'testdata' \) -exec rm -rf \{\} \+
+}
+
+md5sums="907f85c8fa765d31f7f955836fec4049  go1.4.2.src.tar.gz
+65330c61f6d6c881033b0a95ca228edb  no-werror.patch
+4391be88ce8bacdd7fee433b39635583  no-pic.patch
+93ad940db4a6d51e086f80755eaa8f53  no-longjmp-redefine.patch
+81ac9f3188df7a0c16c52cc4d8cc1ffa  fix-arm-hackery.patch
+fd4d1a7ccb5d37da4ff9c3a2d97aa976  default-sc-getpw-r-size-max.patch"
+sha256sums="299a6fd8f8adfdce15bc06bde926e7b252ae8e24dd5b16b7d8791ed79e7b5e9b  go1.4.2.src.tar.gz
+65d38b9485da2ff9417a2c44a81b6e52cc9bd2727b27e7add10d48a63805d4a3  no-werror.patch
+86fc68a50bc4a9336a003239adf1dcc6d7cabfb9c1bcf09b0d53d09100ceff12  no-pic.patch
+084020e0eb6cb0aceee047bd5962872ed51dbb45465174018d108eb195c26605  no-longjmp-redefine.patch
+fced8436d9c32a43a5cc87f2243529e7a8209ba73a9afd4fd7733245bc55e4e3  fix-arm-hackery.patch
+3757d5f7c4e6d3b2fed4b01c7da6e3e8c0b7789333219ab10ec0b151fb163980  default-sc-getpw-r-size-max.patch"
+sha512sums="cda1a29d4418875dffaf3324004ddae8e1bbb573f7668e6e0c03d8b61284f4db7fca244c181f2859f8ccdd3db6391fb21e0d98a1a9fc15096c15883249d48a9c  go1.4.2.src.tar.gz
+3cf139723e6ff0cbf7aaf76295fe4208f2062f2d4086e36d05cad83919217b5355e0e79b0b515a06a578389301bd07b062cb58b98fc0f9e4badf190cd1c34826  no-werror.patch
+a8e95c3c536a30e15b9bad5e623a085c521739639a58ac638679d99413a1bee8823729783123cbe4495ac42822df31f4776f0380a63786b9f4fc73190e012ae5  no-pic.patch
+3a9b665f8fda89729c4c269ea82f82ee515f0026d26f1d51e2cf84054456e394afc14875e7ed29280a12488907d50c70af313e2e4a5b62c328bbade098db9d4d  no-longjmp-redefine.patch
+573146b72c980af5e41540fd7912b5579b050e41ac9d808e8d14268cf0a0fa1a70e6fade85011c0f18f1a428bc95b225d8b8345be1c50656dc69046ef1eb0b40  fix-arm-hackery.patch
+5de9747fe60bbc60aa8ac9870f397fa8750723f919fea25a6afc22066be45a8ad193f7935d3deacbe85c032be89b8ace0a7e82b6c9981ddaf3b7f6e8d140c61f  default-sc-getpw-r-size-max.patch"
diff --git a/main/go-bootstrap/default-sc-getpw-r-size-max.patch b/main/go-bootstrap/default-sc-getpw-r-size-max.patch
new file mode 100644
index 0000000000..f242b5a3cc
--- /dev/null
+++ b/main/go-bootstrap/default-sc-getpw-r-size-max.patch
@@ -0,0 +1,15 @@
+--- a/src/os/user/lookup_unix.go
++++ b/src/os/user/lookup_unix.go
+@@ -57,6 +57,12 @@
+ 		bufSize = 1024
+ 	} else {
+ 		bufSize = C.sysconf(C._SC_GETPW_R_SIZE_MAX)
++		// The musl alternative standard library on Linux
++		// return -1 as specified by POSIX if there are no
++		// hard limit on _SC_GETPW_R_SIZE_MAX.
++		if bufSize == -1 {
++			bufSize = 1024
++		}
+ 		if bufSize <= 0 || bufSize > 1<<20 {
+ 			return nil, fmt.Errorf("user: unreasonable _SC_GETPW_R_SIZE_MAX of %d", bufSize)
+ 		}
diff --git a/main/go-bootstrap/fix-arm-hackery.patch b/main/go-bootstrap/fix-arm-hackery.patch
new file mode 100644
index 0000000000..f5a447264c
--- /dev/null
+++ b/main/go-bootstrap/fix-arm-hackery.patch
@@ -0,0 +1,98 @@
+--- go/src/cmd/dist/arm.c
++++ go.fixed/src/cmd/dist/arm.c
+@@ -11,8 +11,8 @@
+ 	return "6";
+ }
+ #else
+-static void useVFPv3(void);
+-static void useVFPv1(void);
++void useVFPv3(void);
++void useVFPv1(void);
+ 
+ char *
+ xgetgoarm(void)
+@@ -26,46 +26,6 @@
+ 	else if(xtryexecfunc(useVFPv1))
+ 		return "6";
+ 	return "5";
+-}
+-
+-static void
+-useVFPv3(void)
+-{
+-	// try to run VFPv3-only "vmov.f64 d0, #112" instruction
+-	// we can't use that instruction directly, because we
+-	// might be compiling with a soft-float only toolchain.
+-	//
+-	// some newer toolchains are configured to use thumb
+-	// by default, so we need to do some mode changing magic
+-	// here.
+-	// We can use "bx pc; nop" here, but GNU as(1) insists
+-	// on warning us
+-	// "use of r15 in bx in ARM mode is not really useful"
+-	// so we workaround that by using "bx r0"
+-	__asm__ __volatile__ ("mov r0, pc");
+-	__asm__ __volatile__ ("bx r0");
+-	__asm__ __volatile__ (".word 0xeeb70b00"); // vmov.f64 d0, #112
+-	__asm__ __volatile__ (".word 0xe12fff1e"); // bx lr
+-}
+-
+-static void
+-useVFPv1(void)
+-{
+-	// try to run "vmov.f64 d0, d0" instruction
+-	// we can't use that instruction directly, because we
+-	// might be compiling with a soft-float only toolchain
+-	//
+-	// some newer toolchains are configured to use thumb
+-	// by default, so we need to do some mode changing magic
+-	// here.
+-	// We can use "bx pc; nop" here, but GNU as(1) insists
+-	// on warning us
+-	// "use of r15 in bx in ARM mode is not really useful"
+-	// so we workaround that by using "bx r0"
+-	__asm__ __volatile__ ("mov r0, pc");
+-	__asm__ __volatile__ ("bx r0");
+-	__asm__ __volatile__ (".word 0xeeb00b40"); // vomv.f64 d0, d0
+-	__asm__ __volatile__ (".word 0xe12fff1e"); // bx lr
+ }
+ 
+ #endif
+--- go/src/make.bash
++++ go.fixed/src/make.bash
+@@ -129,7 +132,7 @@
+ if [ -z "$CC" -a -z "$(type -t gcc)" -a -n "$(type -t clang)" ]; then
+ 	export CC=clang CXX=clang++
+ fi
+-${CC:-gcc} $mflag -O2 -Wall -Werror -o cmd/dist/dist -Icmd/dist "$DEFGOROOT" cmd/dist/*.c
++${CC:-gcc} $mflag -O2 -Wall -Werror -o cmd/dist/dist -Icmd/dist "$DEFGOROOT" cmd/dist/*.c cmd/dist/*.S
+ 
+ # -e doesn't propagate out of eval, so check success by hand.
+ eval $(./cmd/dist/dist env -p || echo FAIL=true)
+--- /dev/null	2014-12-09 07:52:31.203329541 -0200
++++ go.fixed/src/cmd/dist/arm.S	2014-12-09 10:29:34.149969243 -0200
+@@ -0,0 +1,24 @@
++#ifdef __ARMEL__
++
++.text
++
++.global useVFPv3
++.hidden useVFPv3
++.type useVFPv3,%function
++useVFPv3:
++	mov r0, pc
++	bx r0
++	.word 0xeeb70b00 // vmov.f64 d0, #112
++	.word 0xe12fff1e // bx lr
++
++
++.global useVFPv1
++.hidden useVFPv1
++.type useVFPv1,%function
++useVFPv1:
++	mov r0, pc
++	bx r0
++	.word 0xeeb00b40 // vomv.f64 d0, d0
++	.word 0xe12fff1e // bx lr
++
++#endif
diff --git a/main/go-bootstrap/no-longjmp-redefine.patch b/main/go-bootstrap/no-longjmp-redefine.patch
new file mode 100644
index 0000000000..36566d7a82
--- /dev/null
+++ b/main/go-bootstrap/no-longjmp-redefine.patch
@@ -0,0 +1,10 @@
+--- a/include/libc.h
++++ b/include/libc.h
+@@ -102,7 +102,6 @@ extern	void	sysfatal(char*, ...);
+ #define atoll		p9atoll
+ #define getenv		p9getenv
+ #define	getwd		p9getwd
+-#define	longjmp		p9longjmp
+ #undef  setjmp
+ #define setjmp		p9setjmp
+ #define putenv		p9putenv
diff --git a/main/go-bootstrap/no-pic.patch b/main/go-bootstrap/no-pic.patch
new file mode 100644
index 0000000000..633dd9a1cf
--- /dev/null
+++ b/main/go-bootstrap/no-pic.patch
@@ -0,0 +1,14 @@
+--- a/src/cmd/ld/lib.c
++++ b/src/cmd/ld/lib.c
+@@ -786,6 +786,11 @@ hostlink(void)
+ 		p = strchr(p + 1, ' ');
+ 	}
+ 
++	// The Go linker does not currently support building objects that
++	// may be linked into a PIE. See:
++	// https://code.google.com/p/go/issues/detail?id=6940
++	argv[argc++] = "-fno-PIC";
++
+ 	argv[argc] = nil;
+ 
+ 	quotefmtinstall();
diff --git a/main/go-bootstrap/no-werror.patch b/main/go-bootstrap/no-werror.patch
new file mode 100644
index 0000000000..01f183edb0
--- /dev/null
+++ b/main/go-bootstrap/no-werror.patch
@@ -0,0 +1,10 @@
+--- a/src/cmd/dist/build.c
++++ b/src/cmd/dist/build.c
+@@ -384,7 +384,6 @@ static char *proto_gccargs[] = {
+ 	"-Wno-switch",
+ 	"-Wno-comment",
+	"-Wno-missing-field-initializers",
+-	"-Werror",
+ 	"-fno-common",
+ 	"-ggdb",
+ 	"-pipe",