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debug/gosym: Remove Makefile, rewrite test using go tool.

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Update #2573.

R=r
CC=golang-dev
https://golang.org/cl/5656071
This commit is contained in:
David Symonds 2012-02-16 14:47:14 +11:00
parent 8bb7f7791b
commit 3430599306
3 changed files with 25 additions and 26 deletions
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19
src/pkg/debug/gosym/Makefile
View File

@ -1,19 +0,0 @@
# Copyright 2009 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.
include ../../../Make.inc
TARG=debug/gosym
GOFILES=\
pclntab.go\
symtab.go\
include ../../../Make.pkg
test: make-pclinetest
testshort: make-pclinetest
make-pclinetest:
@if [ "`uname`-`uname -m`" = Linux-x86_64 -a $(GOARCH) = amd64 ]; then mkdir -p _test && $(AS) pclinetest.s && $(LD) -E main -o _test/pclinetest pclinetest.$O; fi

2
src/pkg/debug/gosym/pclinetest.s → src/pkg/debug/gosym/pclinetest.asm
View File

@ -1,5 +1,3 @@
// +build ignore
TEXT linefrompc(SB),7,$0 // Each byte stores its line delta
BYTE $2;
BYTE $1;

30
src/pkg/debug/gosym/pclntab_test.go
View File

@ -7,14 +7,31 @@ package gosym
import (
"debug/elf"
"os"
"os/exec"
"runtime"
"strings"
"testing"
)
var pclinetestBinary string
func dotest() bool {
// For now, only works on ELF platforms.
// TODO: convert to work with new go tool
return false && runtime.GOOS == "linux" && runtime.GOARCH == "amd64"
if runtime.GOOS != "linux" || runtime.GOARCH != "amd64" {
return false
}
if pclinetestBinary != "" {
return true
}
// This command builds pclinetest from pclinetest.asm;
// the resulting binary looks like it was built from pclinetest.s,
// but we have renamed it to keep it away from the go tool.
pclinetestBinary = os.TempDir() + "/pclinetest"
cmd := exec.Command("sh", "-c", "go tool 6a pclinetest.asm && go tool 6l -E main -o "+pclinetestBinary+" pclinetest.6")
if err := cmd.Run(); err != nil {
panic(err)
}
return true
}
func getTable(t *testing.T) *Table {
@ -149,7 +166,7 @@ func TestPCLine(t *testing.T) {
return
}
f, tab := crack("_test/pclinetest", t)
f, tab := crack(pclinetestBinary, t)
text := f.Section(".text")
textdat, err := text.Data()
if err != nil {
@ -163,10 +180,13 @@ func TestPCLine(t *testing.T) {
file, line, fn := tab.PCToLine(pc)
off := pc - text.Addr // TODO(rsc): should not need off; bug in 8g
wantLine += int(textdat[off])
t.Logf("off is %d", off)
if fn == nil {
t.Errorf("failed to get line of PC %#x", pc)
} else if len(file) < 12 || file[len(file)-12:] != "pclinetest.s" || line != wantLine || fn != sym {
t.Errorf("expected %s:%d (%s) at PC %#x, got %s:%d (%s)", "pclinetest.s", wantLine, sym.Name, pc, file, line, fn.Name)
} else if !strings.HasSuffix(file, "pclinetest.s") {
t.Errorf("expected %s (%s) at PC %#x, got %s (%s)", "pclinetest.s", sym.Name, pc, file, fn.Name)
} else if line != wantLine || fn != sym {
t.Errorf("expected :%d (%s) at PC %#x, got :%d (%s)", wantLine, sym.Name, pc, line, fn.Name)
}
}