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📁 ..
📄 ar.go(7.15 KB)
📄 asmb.go(5.44 KB)
📄 config.go(5.64 KB)
📄 data.go(99.49 KB)
📄 data_test.go(2.27 KB)
📄 deadcode.go(18.8 KB)
📄 deadcode_test.go(1.69 KB)
📄 decodesym.go(10.12 KB)
📄 dwarf.go(72.42 KB)
📄 dwarf_test.go(48.49 KB)
📄 elf.go(63.2 KB)
📄 elf_test.go(4.18 KB)
📄 errors.go(1.89 KB)
📄 execarchive.go(876 B)
📄 execarchive_noexec.go(320 B)
📄 fallocate_test.go(1.69 KB)
📄 go.go(11.17 KB)
📄 go_test.go(2.67 KB)
📄 heap.go(1.89 KB)
📄 heap_test.go(1.87 KB)
📄 inittask.go(6.18 KB)
📄 issue33808_test.go(792 B)
📄 ld.go(7.98 KB)
📄 ld_test.go(10.34 KB)
📄 lib.go(86.45 KB)
📄 link.go(5.13 KB)
📄 macho.go(43.68 KB)
📄 macho_combine_dwarf.go(13.1 KB)
📄 main.go(15.99 KB)
📄 msync_darwin_libc.go(307 B)
📄 nooptcgolink_test.go(733 B)
📄 outbuf.go(8.05 KB)
📄 outbuf_darwin.go(1.35 KB)
📄 outbuf_freebsd.go(515 B)
📄 outbuf_linux.go(304 B)
📄 outbuf_mmap.go(1.46 KB)
📄 outbuf_nofallocate.go(301 B)
📄 outbuf_nommap.go(741 B)
📄 outbuf_notdarwin.go(236 B)
📄 outbuf_test.go(2.21 KB)
📄 outbuf_windows.go(2.31 KB)
📄 pcln.go(29.75 KB)
📄 pe.go(48.82 KB)
📄 seh.go(2.05 KB)
📄 stackcheck.go(11.88 KB)
📄 stackcheck_test.go(2.25 KB)
📄 sym.go(3.91 KB)
📄 symtab.go(29.17 KB)
📄 target.go(3.86 KB)
📁 testdata
📄 typelink.go(1.87 KB)
📄 util.go(2.5 KB)
📄 xcoff.go(51.76 KB)

Editing: data_test.go

// Copyright 2020 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.

package ld

import (
	"cmd/internal/objabi"
	"cmd/internal/sys"
	"cmd/link/internal/loader"
	"internal/buildcfg"
	"testing"
)

func setUpContext(arch *sys.Arch, iself bool, ht objabi.HeadType, bm, lm string) *Link {
	ctxt := linknew(arch)
	ctxt.HeadType = ht
	er := loader.ErrorReporter{}
	ctxt.loader = loader.NewLoader(0, &er)
	ctxt.BuildMode.Set(bm)
	ctxt.LinkMode.Set(lm)
	ctxt.IsELF = iself
	ctxt.mustSetHeadType()
	ctxt.setArchSyms()
	return ctxt
}

// Make sure the addgotsym properly increases the symbols.
func TestAddGotSym(t *testing.T) {
	tests := []struct {
		arch    *sys.Arch
		ht      objabi.HeadType
		bm, lm  string
		rel     string
		relsize int
		gotsize int
	}{
		{
			arch:    sys.Arch386,
			ht:      objabi.Hlinux,
			bm:      "pie",
			lm:      "internal",
			rel:     ".rel",
			relsize: 2 * sys.Arch386.PtrSize,
			gotsize: sys.Arch386.PtrSize,
		},
		{
			arch:    sys.ArchAMD64,
			ht:      objabi.Hlinux,
			bm:      "pie",
			lm:      "internal",
			rel:     ".rela",
			relsize: 3 * sys.ArchAMD64.PtrSize,
			gotsize: sys.ArchAMD64.PtrSize,
		},
		{
			arch:    sys.ArchAMD64,
			ht:      objabi.Hdarwin,
			bm:      "pie",
			lm:      "external",
			gotsize: sys.ArchAMD64.PtrSize,
		},
	}

// Save the architecture as we're going to set it on each test run.
	origArch := buildcfg.GOARCH
	defer func() {
		buildcfg.GOARCH = origArch
	}()

for i, test := range tests {
		iself := len(test.rel) != 0
		buildcfg.GOARCH = test.arch.Name
		ctxt := setUpContext(test.arch, iself, test.ht, test.bm, test.lm)
		foo := ctxt.loader.CreateSymForUpdate("foo", 0)
		ctxt.loader.CreateExtSym("bar", 0)
		AddGotSym(&ctxt.Target, ctxt.loader, &ctxt.ArchSyms, foo.Sym(), 0)

if iself {
			rel := ctxt.loader.Lookup(test.rel, 0)
			if rel == 0 {
				t.Fatalf("[%d] could not find symbol: %q", i, test.rel)
			}
			if s := ctxt.loader.SymSize(rel); s != int64(test.relsize) {
				t.Fatalf("[%d] expected ldr.Size(%q) == %v, got %v", i, test.rel, test.relsize, s)
			}
		}
		if s := ctxt.loader.SymSize(ctxt.loader.Lookup(".got", 0)); s != int64(test.gotsize) {
			t.Fatalf(`[%d] expected ldr.Size(".got") == %v, got %v`, i, test.gotsize, s)
		}
	}
}

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Editing: data_test.go

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