MOVQ R15, AX // ERROR "when dynamic linking, R15 is clobbered by a global variable access and is used here"
	RET
TEXT ·a8(SB), 0, $0-0
	CMPL runtime·writeBarrier(SB), $0
	ADDQ AX, R15 // ERROR "when dynamic linking, R15 is clobbered by a global variable access and is used here"
	RET
TEXT ·a9(SB), 0, $0-0
	CMPL runtime·writeBarrier(SB), $0

# combination with selected "unusual" flags (involving plugins, LTO)
# that we force external linking.  See related
# issues 58619,  58620, and 58848.

[compiler:gccgo] skip # only external linking for gccgo

[!cgo] skip 'test verifies behavior that depends on CGO_CFLAGS'
[mustlinkext] skip 'test expects internal linking for non-cgo programs'

# Here we build three program: one with explicit CGO use, one with no

[short] skip 'links and runs binaries'

# This test requires external linking. Assume that if cgo is supported
# then external linking works.
[!cgo] skip 'requires a C linker'

# Only run on Unix systems.
[GOOS:windows] skip
[GOOS:plan9] skip

# Ordinary build should work.
go build
exec ./hello
stdout Hello

# Building with -linkmode=external should not say anything about
# runtime/cgo (issue #31544).

				ctxt.Logf("external linking prefer list is %v\n", preferlinkext)
			}
			if extNeeded || (iscgo && (externalobj || preferExternal)) {
				ctxt.LinkMode = LinkExternal
			} else {
				ctxt.LinkMode = LinkInternal
			}
		}
	}

	switch ctxt.LinkMode {
	case LinkInternal:
		if extNeeded {
			Exitf("internal linking requested %sbut external linking required: %s", via, extReason)
		}

stderr 'android/amd64 requires external \(cgo\) linking, but cgo is not enabled'
! stderr 'cannot find runtime/cgo'

! go test -c -o $devnull os
stderr '# os\nandroid/amd64 requires external \(cgo\) linking, but cgo is not enabled'
! stderr 'cannot find runtime/cgo'

env GOOS=ios GOARCH=arm64 CGO_ENABLED=0

! go build -o $devnull cmd/buildid
stderr 'ios/arm64 requires external \(cgo\) linking, but cgo is not enabled'

import "testing"

// If gcc is used, and linking internally, __mulsc3 and __muldc3
// will be linked in from libgcc which make several R_PPC64_TOC16_DS
// relocations which may not be resolvable with the internal linker.
func test8694(t *testing.T) { t.Skip("not supported on ppc64/ppc64le with internal linking") }

# Issue #7573
# cmd/cgo: undefined reference when linking a C-library using gccgo

[!cgo] skip
[!exec:gccgo] skip
[cross] skip  # gccgo can't necessarily cross-compile, so don't assume it will reach the step where we expect it to fail

! go build -x -compiler gccgo
stderr 'gccgo.*\-L [^ ]*alibpath \-lalib' # make sure that Go-inline "#cgo LDFLAGS:" ("-L alibpath -lalib") passed to gccgo linking stage

[!exec:ar] skip

cc -c -o a/b.syso b/b.c
cc -c -o b/lib.o b/lib.c
exec ar rc a/libb.a b/lib.o
go build
! go build -ldflags=-linkmode=internal
stderr 'some packages could not be built to support internal linking.*m/c|requires external linking|does not support internal cgo'

-- go.mod --
module m

-- a/a.go --
package a

// #cgo LDFLAGS: -L. -lb
// extern int CFn(int);
import "C"

        1 * invocationContext.createInvocation("linking lib", outputFile.parentFile, expectedArgs, operationLogger) >> invocation
        1 * queue.add(invocation)
        1 * queue.setLogLocation(LOG_LOCATION)
        0 * _
    }

    def "use the emit-library flag when linking shared library"() {
        given:
        def testDir = tmpDirProvider.testDirectory

		t.Fatalf("Program built with internal linking failed to run with err %v, output: %s", err, out)
	}

	// Build and run with external linking
	cmd = testenv.Command(t, testenv.GoToolPath(t), "build", "-o", "bigtext", "-ldflags", "-linkmode=external")
	cmd.Dir = tmpdir
	out, err = cmd.CombinedOutput()
	if err != nil {
		t.Fatalf("Build failed for big text program with external linking: %v, output: %s", err, out)
	}