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path: root/src/cmd/vendor/github.com/google/pprof/internal/binutils/binutils_test.go
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Diffstat (limited to 'src/cmd/vendor/github.com/google/pprof/internal/binutils/binutils_test.go')
-rw-r--r--src/cmd/vendor/github.com/google/pprof/internal/binutils/binutils_test.go392
1 files changed, 0 insertions, 392 deletions
diff --git a/src/cmd/vendor/github.com/google/pprof/internal/binutils/binutils_test.go b/src/cmd/vendor/github.com/google/pprof/internal/binutils/binutils_test.go
deleted file mode 100644
index 17d4225a87..0000000000
--- a/src/cmd/vendor/github.com/google/pprof/internal/binutils/binutils_test.go
+++ /dev/null
@@ -1,392 +0,0 @@
-// Copyright 2014 Google Inc. All Rights Reserved.
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-// http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-
-package binutils
-
-import (
- "bytes"
- "fmt"
- "math"
- "path/filepath"
- "reflect"
- "regexp"
- "runtime"
- "strings"
- "testing"
-
- "github.com/google/pprof/internal/plugin"
-)
-
-var testAddrMap = map[int]string{
- 1000: "_Z3fooid.clone2",
- 2000: "_ZNSaIiEC1Ev.clone18",
- 3000: "_ZNSt6vectorIS_IS_IiSaIiEESaIS1_EESaIS3_EEixEm",
-}
-
-func functionName(level int) (name string) {
- if name = testAddrMap[level]; name != "" {
- return name
- }
- return fmt.Sprintf("fun%d", level)
-}
-
-func TestAddr2Liner(t *testing.T) {
- const offset = 0x500
-
- a := addr2Liner{rw: &mockAddr2liner{}, base: offset}
- for i := 1; i < 8; i++ {
- addr := i*0x1000 + offset
- s, err := a.addrInfo(uint64(addr))
- if err != nil {
- t.Fatalf("addrInfo(%#x): %v", addr, err)
- }
- if len(s) != i {
- t.Fatalf("addrInfo(%#x): got len==%d, want %d", addr, len(s), i)
- }
- for l, f := range s {
- level := (len(s) - l) * 1000
- want := plugin.Frame{Func: functionName(level), File: fmt.Sprintf("file%d", level), Line: level}
-
- if f != want {
- t.Errorf("AddrInfo(%#x)[%d]: = %+v, want %+v", addr, l, f, want)
- }
- }
- }
- s, err := a.addrInfo(0xFFFF)
- if err != nil {
- t.Fatalf("addrInfo(0xFFFF): %v", err)
- }
- if len(s) != 0 {
- t.Fatalf("AddrInfo(0xFFFF): got len==%d, want 0", len(s))
- }
- a.rw.close()
-}
-
-type mockAddr2liner struct {
- output []string
-}
-
-func (a *mockAddr2liner) write(s string) error {
- var lines []string
- switch s {
- case "1000":
- lines = []string{"_Z3fooid.clone2", "file1000:1000"}
- case "2000":
- lines = []string{"_ZNSaIiEC1Ev.clone18", "file2000:2000", "_Z3fooid.clone2", "file1000:1000"}
- case "3000":
- lines = []string{"_ZNSt6vectorIS_IS_IiSaIiEESaIS1_EESaIS3_EEixEm", "file3000:3000", "_ZNSaIiEC1Ev.clone18", "file2000:2000", "_Z3fooid.clone2", "file1000:1000"}
- case "4000":
- lines = []string{"fun4000", "file4000:4000", "_ZNSt6vectorIS_IS_IiSaIiEESaIS1_EESaIS3_EEixEm", "file3000:3000", "_ZNSaIiEC1Ev.clone18", "file2000:2000", "_Z3fooid.clone2", "file1000:1000"}
- case "5000":
- lines = []string{"fun5000", "file5000:5000", "fun4000", "file4000:4000", "_ZNSt6vectorIS_IS_IiSaIiEESaIS1_EESaIS3_EEixEm", "file3000:3000", "_ZNSaIiEC1Ev.clone18", "file2000:2000", "_Z3fooid.clone2", "file1000:1000"}
- case "6000":
- lines = []string{"fun6000", "file6000:6000", "fun5000", "file5000:5000", "fun4000", "file4000:4000", "_ZNSt6vectorIS_IS_IiSaIiEESaIS1_EESaIS3_EEixEm", "file3000:3000", "_ZNSaIiEC1Ev.clone18", "file2000:2000", "_Z3fooid.clone2", "file1000:1000"}
- case "7000":
- lines = []string{"fun7000", "file7000:7000", "fun6000", "file6000:6000", "fun5000", "file5000:5000", "fun4000", "file4000:4000", "_ZNSt6vectorIS_IS_IiSaIiEESaIS1_EESaIS3_EEixEm", "file3000:3000", "_ZNSaIiEC1Ev.clone18", "file2000:2000", "_Z3fooid.clone2", "file1000:1000"}
- case "8000":
- lines = []string{"fun8000", "file8000:8000", "fun7000", "file7000:7000", "fun6000", "file6000:6000", "fun5000", "file5000:5000", "fun4000", "file4000:4000", "_ZNSt6vectorIS_IS_IiSaIiEESaIS1_EESaIS3_EEixEm", "file3000:3000", "_ZNSaIiEC1Ev.clone18", "file2000:2000", "_Z3fooid.clone2", "file1000:1000"}
- case "9000":
- lines = []string{"fun9000", "file9000:9000", "fun8000", "file8000:8000", "fun7000", "file7000:7000", "fun6000", "file6000:6000", "fun5000", "file5000:5000", "fun4000", "file4000:4000", "_ZNSt6vectorIS_IS_IiSaIiEESaIS1_EESaIS3_EEixEm", "file3000:3000", "_ZNSaIiEC1Ev.clone18", "file2000:2000", "_Z3fooid.clone2", "file1000:1000"}
- default:
- lines = []string{"??", "??:0"}
- }
- a.output = append(a.output, "0x"+s)
- a.output = append(a.output, lines...)
- return nil
-}
-
-func (a *mockAddr2liner) readLine() (string, error) {
- if len(a.output) == 0 {
- return "", fmt.Errorf("end of file")
- }
- next := a.output[0]
- a.output = a.output[1:]
- return next, nil
-}
-
-func (a *mockAddr2liner) close() {
-}
-
-func TestAddr2LinerLookup(t *testing.T) {
- const oddSizedData = `
-00001000 T 0x1000
-00002000 T 0x2000
-00003000 T 0x3000
-`
- const evenSizedData = `
-0000000000001000 T 0x1000
-0000000000002000 T 0x2000
-0000000000003000 T 0x3000
-0000000000004000 T 0x4000
-`
- for _, d := range []string{oddSizedData, evenSizedData} {
- a, err := parseAddr2LinerNM(0, bytes.NewBufferString(d))
- if err != nil {
- t.Errorf("nm parse error: %v", err)
- continue
- }
- for address, want := range map[uint64]string{
- 0x1000: "0x1000",
- 0x1001: "0x1000",
- 0x1FFF: "0x1000",
- 0x2000: "0x2000",
- 0x2001: "0x2000",
- } {
- if got, _ := a.addrInfo(address); !checkAddress(got, address, want) {
- t.Errorf("%x: got %v, want %s", address, got, want)
- }
- }
- for _, unknown := range []uint64{0x0fff, 0x4001} {
- if got, _ := a.addrInfo(unknown); got != nil {
- t.Errorf("%x: got %v, want nil", unknown, got)
- }
- }
- }
-}
-
-func checkAddress(got []plugin.Frame, address uint64, want string) bool {
- if len(got) != 1 {
- return false
- }
- return got[0].Func == want
-}
-
-func TestSetTools(t *testing.T) {
- // Test that multiple calls work.
- bu := &Binutils{}
- bu.SetTools("")
- bu.SetTools("")
-}
-
-func TestSetFastSymbolization(t *testing.T) {
- // Test that multiple calls work.
- bu := &Binutils{}
- bu.SetFastSymbolization(true)
- bu.SetFastSymbolization(false)
-}
-
-func skipUnlessLinuxAmd64(t *testing.T) {
- if runtime.GOOS != "linux" || runtime.GOARCH != "amd64" {
- t.Skip("This test only works on x86-64 Linux")
- }
-}
-
-func skipUnlessDarwinAmd64(t *testing.T) {
- if runtime.GOOS != "darwin" || runtime.GOARCH != "amd64" {
- t.Skip("This test only works on x86-64 Mac")
- }
-}
-
-func TestDisasm(t *testing.T) {
- skipUnlessLinuxAmd64(t)
- bu := &Binutils{}
- insts, err := bu.Disasm(filepath.Join("testdata", "exe_linux_64"), 0, math.MaxUint64)
- if err != nil {
- t.Fatalf("Disasm: unexpected error %v", err)
- }
- mainCount := 0
- for _, x := range insts {
- if x.Function == "main" {
- mainCount++
- }
- }
- if mainCount == 0 {
- t.Error("Disasm: found no main instructions")
- }
-}
-
-func findSymbol(syms []*plugin.Sym, name string) *plugin.Sym {
- for _, s := range syms {
- for _, n := range s.Name {
- if n == name {
- return s
- }
- }
- }
- return nil
-}
-
-func TestObjFile(t *testing.T) {
- skipUnlessLinuxAmd64(t)
- for _, tc := range []struct {
- desc string
- start, limit, offset uint64
- addr uint64
- }{
- {"fake mapping", 0, math.MaxUint64, 0, 0x40052d},
- {"fixed load address", 0x400000, 0x4006fc, 0, 0x40052d},
- // True user-mode ASLR binaries are ET_DYN rather than ET_EXEC so this case
- // is a bit artificial except that it approximates the
- // vmlinux-with-kernel-ASLR case where the binary *is* ET_EXEC.
- {"simulated ASLR address", 0x500000, 0x5006fc, 0, 0x50052d},
- } {
- t.Run(tc.desc, func(t *testing.T) {
- bu := &Binutils{}
- f, err := bu.Open(filepath.Join("testdata", "exe_linux_64"), tc.start, tc.limit, tc.offset)
- if err != nil {
- t.Fatalf("Open: unexpected error %v", err)
- }
- defer f.Close()
- syms, err := f.Symbols(regexp.MustCompile("main"), 0)
- if err != nil {
- t.Fatalf("Symbols: unexpected error %v", err)
- }
-
- m := findSymbol(syms, "main")
- if m == nil {
- t.Fatalf("Symbols: did not find main")
- }
- for _, addr := range []uint64{m.Start + f.Base(), tc.addr} {
- gotFrames, err := f.SourceLine(addr)
- if err != nil {
- t.Fatalf("SourceLine: unexpected error %v", err)
- }
- wantFrames := []plugin.Frame{
- {Func: "main", File: "/tmp/hello.c", Line: 3},
- }
- if !reflect.DeepEqual(gotFrames, wantFrames) {
- t.Fatalf("SourceLine for main: got %v; want %v\n", gotFrames, wantFrames)
- }
- }
- })
- }
-}
-
-func TestMachoFiles(t *testing.T) {
- skipUnlessDarwinAmd64(t)
-
- // Load `file`, pretending it was mapped at `start`. Then get the symbol
- // table. Check that it contains the symbol `sym` and that the address
- // `addr` gives the `expected` stack trace.
- for _, tc := range []struct {
- desc string
- file string
- start, limit, offset uint64
- addr uint64
- sym string
- expected []plugin.Frame
- }{
- {"normal mapping", "exe_mac_64", 0x100000000, math.MaxUint64, 0,
- 0x100000f50, "_main",
- []plugin.Frame{
- {Func: "main", File: "/tmp/hello.c", Line: 3},
- }},
- {"other mapping", "exe_mac_64", 0x200000000, math.MaxUint64, 0,
- 0x200000f50, "_main",
- []plugin.Frame{
- {Func: "main", File: "/tmp/hello.c", Line: 3},
- }},
- {"lib normal mapping", "lib_mac_64", 0, math.MaxUint64, 0,
- 0xfa0, "_bar",
- []plugin.Frame{
- {Func: "bar", File: "/tmp/lib.c", Line: 5},
- }},
- } {
- t.Run(tc.desc, func(t *testing.T) {
- bu := &Binutils{}
- f, err := bu.Open(filepath.Join("testdata", tc.file), tc.start, tc.limit, tc.offset)
- if err != nil {
- t.Fatalf("Open: unexpected error %v", err)
- }
- t.Logf("binutils: %v", bu)
- if runtime.GOOS == "darwin" && !bu.rep.addr2lineFound && !bu.rep.llvmSymbolizerFound {
- // On OSX user needs to install gaddr2line or llvm-symbolizer with
- // Homebrew, skip the test when the environment doesn't have it
- // installed.
- t.Skip("couldn't find addr2line or gaddr2line")
- }
- defer f.Close()
- syms, err := f.Symbols(nil, 0)
- if err != nil {
- t.Fatalf("Symbols: unexpected error %v", err)
- }
-
- m := findSymbol(syms, tc.sym)
- if m == nil {
- t.Fatalf("Symbols: could not find symbol %v", tc.sym)
- }
- gotFrames, err := f.SourceLine(tc.addr)
- if err != nil {
- t.Fatalf("SourceLine: unexpected error %v", err)
- }
- if !reflect.DeepEqual(gotFrames, tc.expected) {
- t.Fatalf("SourceLine for main: got %v; want %v\n", gotFrames, tc.expected)
- }
- })
- }
-}
-
-func TestLLVMSymbolizer(t *testing.T) {
- if runtime.GOOS != "linux" {
- t.Skip("testtdata/llvm-symbolizer has only been tested on linux")
- }
-
- cmd := filepath.Join("testdata", "fake-llvm-symbolizer")
- symbolizer, err := newLLVMSymbolizer(cmd, "foo", 0)
- if err != nil {
- t.Fatalf("newLLVMSymbolizer: unexpected error %v", err)
- }
- defer symbolizer.rw.close()
-
- for _, c := range []struct {
- addr uint64
- frames []plugin.Frame
- }{
- {0x10, []plugin.Frame{
- {Func: "Inlined_0x10", File: "foo.h", Line: 0},
- {Func: "Func_0x10", File: "foo.c", Line: 2},
- }},
- {0x20, []plugin.Frame{
- {Func: "Inlined_0x20", File: "foo.h", Line: 0},
- {Func: "Func_0x20", File: "foo.c", Line: 2},
- }},
- } {
- frames, err := symbolizer.addrInfo(c.addr)
- if err != nil {
- t.Errorf("LLVM: unexpected error %v", err)
- continue
- }
- if !reflect.DeepEqual(frames, c.frames) {
- t.Errorf("LLVM: expect %v; got %v\n", c.frames, frames)
- }
- }
-}
-
-func TestOpenMalformedELF(t *testing.T) {
- // Test that opening a malformed ELF file will report an error containing
- // the word "ELF".
- bu := &Binutils{}
- _, err := bu.Open(filepath.Join("testdata", "malformed_elf"), 0, 0, 0)
- if err == nil {
- t.Fatalf("Open: unexpected success")
- }
-
- if !strings.Contains(err.Error(), "ELF") {
- t.Errorf("Open: got %v, want error containing 'ELF'", err)
- }
-}
-
-func TestOpenMalformedMachO(t *testing.T) {
- // Test that opening a malformed Mach-O file will report an error containing
- // the word "Mach-O".
- bu := &Binutils{}
- _, err := bu.Open(filepath.Join("testdata", "malformed_macho"), 0, 0, 0)
- if err == nil {
- t.Fatalf("Open: unexpected success")
- }
-
- if !strings.Contains(err.Error(), "Mach-O") {
- t.Errorf("Open: got %v, want error containing 'Mach-O'", err)
- }
-}
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