dev-lang/go: new package, add 1.25.8

dev-lang/go/Manifest

@@ -0,0 +1,8 @@
+AUX go-1.24-dont-force-gold-arm.patch 2151 BLAKE2B 1a2a16464d0fffdd78b195346cb7e8ddd9077c2e2e8472a8ca16de3c3b8468c4662f68398ada29463cc6b83869a8cdcab0f8ef0d0807fecf3f03bcc4becba03e SHA512 75eb534c214e9ba2ed7667d04c8007131b34dbae8b6e3e6ad0b8b7fe9ccee90fdb1c3bafe2f7e2bdd3270dc4a1cf3bcac789b03625f0eead9b51ce471bd294eb
+AUX go-1.24-skip-gdb-tests.patch 408 BLAKE2B 062d5ee7bda4e4891a3098e4a9328136b128ac029cf4613d13dcc062a0af03d687f67a4c35bd3b130aad6af8661371b48408df471760eceb76d4e757a60189c2 SHA512 311e45c7fa8f0c32f7c2b3cd017af126a1781fbfddc5d62c5fbd6a2f2b4bc9f9d7492a6ba231bd97806821b1c75b0e096e1e7e526ea9c2d8bbe6108e5a907ca2
+AUX go-1.25-no-dwarf5.patch 533 BLAKE2B 80045f28f75ba924626b87ae952f00c9efda36f1c1d76b6d1a58ce410a8abd6f799d3bcb6815ae484ba9a87f3c3f287de8b603918f85842972d3a811f78db067 SHA512 5371f9853fd220ad2bfc07b25847016996d0b46e07f5e43a2a257d4fc1f123bfdb15ea5b7c879e26a36b7d20639385cb3afb693985b750b1e81c022726dc705c
+AUX go-1.25-strip-top-level-const.patch 2808 BLAKE2B cd47888a8d26db5d72d6be0c2ce052ef3ef452e948af61487aa3a599880de2fecb52e388c1be33f4ca20d27f61254967826937c29240bbaa5ea7456d360c696c SHA512 6fd08437ce8717f61ee1b4151bcad0f5f2160dfd405ebcc49147b76d87341958643e773d2c05dbae8e17c02b0a48441e9bd6a86df326d480d94cb9c8f06b472f
+AUX go-never-download-newer-toolchains.patch 368 BLAKE2B 0c90f46492af80622f430b2d506b143f3b553b5276085f78f41b93fee8219745179038302462603b5b1677554d92911eb4865084d0488aaa4c71ae1abc307f71 SHA512 b5acf97ccf96c6a353fcb7bd97113c38562defd82338828124fcc72c71334feda9c4e839d2aae5b66b809bc8a692eac96396c54a478e17a7ffd8d2c68fea95e6
+DIST go1.25.8.src.tar.gz 31991986 BLAKE2B c8a18a74a8903e53954bcc39ce804518e94bd6b2ee0b8a0cc4b5cd87f5d1760d6b1235233d2bf2804e3ec55a42cf6f5345a6fe4382e7406483915101ca107c97 SHA512 2f5c9f314d18169985a9a4b19346e00dd5d4b396c8c17bfffe5719e51f27d834cc9649d0165f7eeb7367d3b6d384f49917325a40b49ba4da65e22f2c5362c739
+EBUILD go-1.25.8.ebuild 3471 BLAKE2B 2fc35df597cb7dc6f34364e3e4499be219b0dfa6fdf389de6b6b12a35418aa85cfc51f2d644f7416fd481e5cecfa5be368f2bce3e041f13a4afbc614f0901ac8 SHA512 562b68c217c999a24391edd00d7ed89f64904bfb8d01d53162da767f23d7be0d4a6e98ac6517ffd7d2c10914b6d80589e214e9d41fcb70ebe91dc95128a4bf46
+MISC metadata.xml 589 BLAKE2B 341e4c0e91d73ca668c1795035e1223eed60f85c724afd989ef1f8fb69649f7f6eaaf8a5228f6c8f587ffcc40a438c47d332fbe6866839f5a0829872a983f642 SHA512 fe58ddddfbd4d0d060516cb035592a80c0f48e125bb59c95d3c6fac0c182271e2a9ec9bd055b9cc8e6cb8c449e6c483bff4a23c362f532c24255febfdefc273a

dev-lang/go/files/go-1.24-dont-force-gold-arm.patch

@@ -0,0 +1,55 @@
+Don't default to -fuse-ld=gold on arm64. The gold linker is deprecated in
+GNU Binutils and the referenced bfd bug which led to this default being
+added is long-fixed.
+
+https://src.fedoraproject.org/rpms/golang/raw/rawhide/f/0006-Default-to-ld.bfd-on-ARM64.patch
+https://bugs.gentoo.org/893956
+https://github.com/golang/go/issues/22040
+https://github.com/golang/go/pull/49748
+https://sourceware.org/PR19962
+
+From 46ec67413008607e2150e3395668e54e538c5b6b Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?Alejandro=20S=C3=A1ez?= <asm@redhat.com>
+Date: Wed, 19 Jun 2024 10:18:58 +0200
+Subject: [PATCH] Default to ld.bfd on ARM64
+
+---
+ src/cmd/link/internal/ld/lib.go | 20 +++++++-------------
+ 1 file changed, 7 insertions(+), 13 deletions(-)
+
+diff --git a/src/cmd/link/internal/ld/lib.go b/src/cmd/link/internal/ld/lib.go
+index eab74dc328..b401f58727 100644
+--- a/src/cmd/link/internal/ld/lib.go
++++ b/src/cmd/link/internal/ld/lib.go
+@@ -1620,22 +1620,16 @@ func (ctxt *Link) hostlink() {
+ 		}
+ 
+ 		if ctxt.Arch.InFamily(sys.ARM64) && buildcfg.GOOS == "linux" {
+-			// On ARM64, the GNU linker will fail with
+-			// -znocopyreloc if it thinks a COPY relocation is
+-			// required. Switch to gold.
+-			// https://sourceware.org/bugzilla/show_bug.cgi?id=19962
+-			// https://go.dev/issue/22040
+-			altLinker = "gold"
+-
+-			// If gold is not installed, gcc will silently switch
+-			// back to ld.bfd. So we parse the version information
+-			// and provide a useful error if gold is missing.
++			// Use ld.bfd as the default linker
++			altLinker = "bfd"
++
++			// Provide a useful error if ld.bfd is missing
+ 			name, args := flagExtld[0], flagExtld[1:]
+-			args = append(args, "-fuse-ld=gold", "-Wl,--version")
++			args = append(args, "-fuse-ld=bfd", "-Wl,--version")
+ 			cmd := exec.Command(name, args...)
+ 			if out, err := cmd.CombinedOutput(); err == nil {
+-				if !bytes.Contains(out, []byte("GNU gold")) {
+-					log.Fatalf("ARM64 external linker must be gold (issue #15696, 22040), but is not: %s", out)
++				if !bytes.Contains(out, []byte("GNU ld")) {
++					log.Fatalf("ARM64 external linker must be ld.bfd, but is not: %s", out)
+ 				}
+ 			}
+ 		}
+-- 
+2.45.1

dev-lang/go/files/go-1.24-skip-gdb-tests.patch

@@ -0,0 +1,12 @@
+diff --git a/src/runtime/runtime-gdb_test.go b/src/runtime/runtime-gdb_test.go
+index 9c54d68949..d4eada51af 100644
+--- a/src/runtime/runtime-gdb_test.go
++++ b/src/runtime/runtime-gdb_test.go
+@@ -55,6 +55,7 @@ func checkGdbEnvironment(t *testing.T) {
+ 	case "plan9":
+ 		t.Skip("there is no gdb on Plan 9")
+ 	}
++		t.Skip("gdb tests do not work under gentoo portage")
+ }
+ 
+ func checkGdbVersion(t *testing.T) {

dev-lang/go/files/go-1.25-no-dwarf5.patch

@@ -0,0 +1,15 @@
+diff --git a/go.env b/go.env
+index 6ff2b921d4..e8959a72c7 100644
+--- a/go.env
++++ b/go.env
+@@ -2,6 +2,10 @@
+ # Values set by 'go env -w' and written to the user's go/env file override these.
+ # The environment overrides everything else.
+ 
++#This can be removed when debugedit is fixed to support dwarf5
++# https://sourceware.org/bugzilla/show_bug.cgi?id=33204
++GOEXPERIMENT=nodwarf5
++
+ # Use the Go module mirror and checksum database by default.
+ # See https://proxy.golang.org for details.
+ GOPROXY=https://proxy.golang.org,direct

dev-lang/go/files/go-1.25-strip-top-level-const.patch

@@ -0,0 +1,94 @@
+From 7a6e3f07acfd822aa1d62f1c715125e30d67d089 Mon Sep 17 00:00:00 2001
+From: Ian Lance Taylor <iant@golang.org>
+Date: Mon, 03 Nov 2025 15:54:39 -0800
+Subject: [PATCH] cmd/cgo: strip top-level const qualifier from argument frame struct
+
+Otherwise we can't assign to it.
+
+Fixes #75751
+
+Change-Id: Iba680db672297bca1a1d1a33912b80863da66a08
+---
+
+diff --git a/src/cmd/cgo/internal/test/test.go b/src/cmd/cgo/internal/test/test.go
+index 9626407..e83e367 100644
+--- a/src/cmd/cgo/internal/test/test.go
++++ b/src/cmd/cgo/internal/test/test.go
+@@ -953,6 +953,12 @@
+ } issue69086struct;
+ static int issue690861(issue69086struct* p) { p->b = 1234; return p->c; }
+ static int issue690862(unsigned long ul1, unsigned long ul2, unsigned int u, issue69086struct s) { return (int)(s.b); }
++
++char issue75751v = 1;
++char * const issue75751p = &issue75751v;
++#define issue75751m issue75751p
++char * const volatile issue75751p2 = &issue75751v;
++#define issue75751m2 issue75751p2
+ */
+ import "C"
+ 
+@@ -2396,3 +2402,8 @@
+ 		t.Errorf("call: got %d, want 1234", got)
+ 	}
+ }
++
++// Issue 75751: no runtime test, just make sure it compiles.
++func test75751() int {
++	return int(*C.issue75751m) + int(*C.issue75751m2)
++}
+diff --git a/src/cmd/cgo/out.go b/src/cmd/cgo/out.go
+index 394e766..05d9dcf 100644
+--- a/src/cmd/cgo/out.go
++++ b/src/cmd/cgo/out.go
+@@ -457,6 +457,33 @@
+ // Also assumes that gc convention is to word-align the
+ // input and output parameters.
+ func (p *Package) structType(n *Name) (string, int64) {
++	// It's possible for us to see a type with a top-level const here,
++	// which will give us an unusable struct type. See #75751.
++	// The top-level const will always appear as a final qualifier,
++	// constructed by typeConv.loadType in the dwarf.QualType case.
++	// The top-level const is meaningless here and can simply be removed.
++	stripConst := func(s string) string {
++		i := strings.LastIndex(s, "const")
++		if i == -1 {
++			return s
++		}
++
++		// A top-level const can only be followed by other qualifiers.
++		if r, ok := strings.CutSuffix(s, "const"); ok {
++			return r
++		}
++
++		for _, f := range strings.Fields(s[i:]) {
++			switch f {
++			case "const", "restrict", "volatile":
++			default:
++				return s
++			}
++		}
++
++		return strings.TrimSpace(s[:i]) + strings.TrimSpace(s[i+len("const"):])
++	}
++
+ 	var buf strings.Builder
+ 	fmt.Fprint(&buf, "struct {\n")
+ 	off := int64(0)
+@@ -468,7 +495,7 @@
+ 		}
+ 		c := t.Typedef
+ 		if c == "" {
+-			c = t.C.String()
++			c = stripConst(t.C.String())
+ 		}
+ 		fmt.Fprintf(&buf, "\t\t%s p%d;\n", c, i)
+ 		off += t.Size
+@@ -484,7 +511,7 @@
+ 			fmt.Fprintf(&buf, "\t\tchar __pad%d[%d];\n", off, pad)
+ 			off += pad
+ 		}
+-		fmt.Fprintf(&buf, "\t\t%s r;\n", t.C)
++		fmt.Fprintf(&buf, "\t\t%s r;\n", stripConst(t.C.String()))
+ 		off += t.Size
+ 	}
+ 	if off%p.PtrSize != 0 {

dev-lang/go/files/go-never-download-newer-toolchains.patch

@@ -0,0 +1,13 @@
+diff --git a/go.env b/go.env
+index 6ff2b921d4..1112a19c9b 100644
+--- a/go.env
++++ b/go.env
+@@ -7,6 +7,6 @@
+ GOPROXY=https://proxy.golang.org,direct
+ GOSUMDB=sum.golang.org
+ 
+-# Automatically download newer toolchains as directed by go.mod files.
++# Never download newer toolchains.
+ # See https://go.dev/doc/toolchain for details.
+-GOTOOLCHAIN=auto
++GOTOOLCHAIN=local

dev-lang/go/go-1.25.8.ebuild

@@ -0,0 +1,135 @@
+# Copyright 1999-2026 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=8
+
+export CBUILD=${CBUILD:-${CHOST}}
+export CTARGET=${CTARGET:-${CHOST}}
+
+# See "Bootstrap" in release notes
+GO_BOOTSTRAP_MIN=1.22.12
+MY_PV=${PV/_/}
+
+inherit go-env toolchain-funcs
+
+case ${PV}  in
+*9999*)
+	EGIT_REPO_URI="https://github.com/golang/go.git"
+	inherit git-r3
+	;;
+*)
+	SRC_URI="https://go.dev/dl/go${MY_PV}.src.tar.gz "
+	S="${WORKDIR}"/go
+	KEYWORDS="-* ~amd64 ~arm ~arm64 ~loong ~mips ~ppc64 ~riscv ~s390 ~x86 ~x64-macos ~x64-solaris"
+	;;
+esac
+
+DESCRIPTION="A concurrent garbage collected and typesafe programming language"
+HOMEPAGE="https://go.dev"
+
+LICENSE="BSD"
+SLOT="0/${PV}"
+IUSE="cpu_flags_x86_sse2"
+
+BDEPEND="|| (
+		>=dev-lang/go-${GO_BOOTSTRAP_MIN}
+		>=dev-lang/go-bootstrap-${GO_BOOTSTRAP_MIN} )"
+
+# the *.syso files have writable/executable stacks
+QA_EXECSTACK='*.syso'
+
+# Do not complain about CFLAGS, etc, since Go doesn't use them.
+QA_FLAGS_IGNORED='.*'
+
+# The tools in /usr/lib/go should not cause the multilib-strict check to fail.
+QA_MULTILIB_PATHS="usr/lib/go/pkg/tool/.*/.*"
+
+# This package triggers "unrecognized elf file(s)" notices on riscv.
+# https://bugs.gentoo.org/794046
+QA_PREBUILT="*"
+QA_PRESTRIPPED="*.syso"
+
+# The Go data race detector (go test -race) requires an unstripped Go toolchain.
+# https://bugs.gentoo.org/961618
+RESTRICT="strip"
+
+DOCS=(
+	CONTRIBUTING.md
+	PATENTS
+	README.md
+	SECURITY.md
+)
+
+go_tuple() {
+	echo "$(go-env_goos $@)_$(go-env_goarch $@)"
+}
+
+go_cross_compile() {
+	[[ $(go_tuple ${CBUILD}) != $(go_tuple) ]]
+}
+
+PATCHES=(
+	"${FILESDIR}"/go-1.24-skip-gdb-tests.patch
+	"${FILESDIR}"/go-1.24-dont-force-gold-arm.patch
+	"${FILESDIR}"/go-1.25-no-dwarf5.patch
+	"${FILESDIR}"/go-1.25-strip-top-level-const.patch
+	"${FILESDIR}"/go-never-download-newer-toolchains.patch
+)
+
+src_compile() {
+	if has_version -b ">=dev-lang/go-${GO_BOOTSTRAP_MIN}"; then
+		export GOROOT_BOOTSTRAP="${BROOT}/usr/lib/go"
+	elif has_version -b ">=dev-lang/go-bootstrap-${GO_BOOTSTRAP_MIN}"; then
+		export GOROOT_BOOTSTRAP="${BROOT}/usr/lib/go-bootstrap"
+	else
+		eerror "Go cannot be built without go or go-bootstrap installed"
+		die "Should not be here, please report a bug"
+	fi
+
+	# Go's build script does not use BUILD/HOST/TARGET consistently. :(
+	export GOHOSTARCH=$(go-env_goarch ${CBUILD})
+	export GOHOSTOS=$(go-env_goos ${CBUILD})
+	export CC=$(tc-getBUILD_CC)
+
+	export GOARCH=$(go-env_goarch)
+	export GOOS=$(go-env_goos)
+	export CC_FOR_TARGET=$(tc-getCC)
+	export CXX_FOR_TARGET=$(tc-getCXX)
+	use arm && export GOARM=$(go-env_goarm)
+	use x86 && export GO386=$(go-env_go386)
+
+	cd src
+	bash -x ./make.bash || die "build failed"
+}
+
+src_test() {
+	go_cross_compile && return 0
+	cd src
+	PATH="${GOBIN}:${PATH}" \
+	./run.bash -no-rebuild -k || die "tests failed"
+}
+
+src_install() {
+	dodir /usr/lib/go
+	# The use of cp is deliberate in order to retain permissions
+	cp -R . "${ED}"/usr/lib/go
+	einstalldocs
+
+	# testdata directories are not needed on the installed system
+	# The other files we remove are installed by einstalldocs
+	rm -r $(find "${ED}"/usr/lib/go -iname testdata -type d -print) || die
+	rm "${ED}"/usr/lib/go/{CONTRIBUTING.md,PATENTS,README.md} || die
+	rm "${ED}"/usr/lib/go/{SECURITY.md,codereview.cfg,LICENSE} || die
+
+	local bin_path
+	if go_cross_compile; then
+		bin_path="bin/$(go_tuple)"
+	else
+		bin_path=bin
+	fi
+	local f x
+	for x in ${bin_path}/*; do
+		f=${x##*/}
+		dosym ../lib/go/${bin_path}/${f} /usr/bin/${f}
+	done
+}

dev-lang/go/metadata.xml

@@ -0,0 +1,17 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE pkgmetadata SYSTEM "https://www.gentoo.org/dtd/metadata.dtd">
+<pkgmetadata>
+	<maintainer type="person">
+		<email>williamh@gentoo.org</email>
+		<name>William Hubbs</name>
+	</maintainer>
+	<longdescription lang="en">
+		Go is a new systems programming language developed at google by
+		Rob Pike. It has garbage collection, coroutines, communication
+		channels and a clean syntax.  
+	</longdescription>
+	<upstream>
+		<remote-id type="cpe">cpe:/a:golang:go</remote-id>
+		<remote-id type="github">golang/go</remote-id>
+	</upstream>
+</pkgmetadata>