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proc: support position independent executables (PIE)

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Support for position independent executables (PIE) on the native linux
backend, the gdbserver backend on linux and the core backend.
Also implemented in the windows native backend, but it can't be tested
because go doesn't support PIE on windows yet.
This commit is contained in:
aarzilli
2018-05-29 17:01:51 +02:00
committed by Derek Parker
parent 4e4ed02948
commit 74c98bc961
41 changed files with 467 additions and 161 deletions
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65
scripts/make.go
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@ -16,7 +16,7 @@ import (
const DelveMainPackagePath = "github.com/derekparker/delve/cmd/dlv"
var Verbose bool
var TestSet, TestRegex, TestBackend string
var TestSet, TestRegex, TestBackend, TestBuildMode string
func NewMakeCommands() *cobra.Command {
RootCommand := &cobra.Command{
@ -62,10 +62,13 @@ func NewMakeCommands() *cobra.Command {
Use the flags -s, -r and -b to specify which tests to run. Specifying nothing is equivalent to:
go run scripts/make.go test -s all -b default
go run scripts/make.go test -s basic -b lldb
go run scripts/make.go test -s basic -b rr
with lldb and rr tests only run if the relevant programs are installed.`,
go run scripts/make.go test -s basic -b lldb # if lldb-server is installed
go run scripts/make.go test -s basic -b rr # if rr is installed
go run scripts/make.go test -s basic -m pie # only on linux
go run scripts/make.go test -s core -m pie # only on linux
go run scripts/make.go test -s
`,
Run: testCmd,
}
test.PersistentFlags().BoolVarP(&Verbose, "verbose", "v", false, "Verbose tests")
@ -81,6 +84,11 @@ with lldb and rr tests only run if the relevant programs are installed.`,
lldb lldb backend
rr rr backend
This option can only be specified if testset is basic or a single package.`)
test.PersistentFlags().StringVarP(&TestBuildMode, "test-build-mode", "m", "", `Runs tests compiling with the specified build mode, one of either:
normal normal buildmode (default)
pie PIE buildmode
This option can only be specified if testset is basic or a single package.`)
RootCommand.AddCommand(test)
@ -253,21 +261,30 @@ func testCmd(cmd *cobra.Command, args []string) {
return
}
if TestSet == "" && TestBackend == "" {
if TestSet == "" && TestBackend == "" && TestBuildMode == "" {
if TestRegex != "" {
fmt.Printf("Can not use --test-run without --test-set\n")
os.Exit(1)
}
fmt.Println("Testing default backend")
testCmdIntl("all", "", "default")
testCmdIntl("all", "", "default", "normal")
if inpath("lldb-server") {
fmt.Println("\nTesting LLDB backend")
testCmdIntl("basic", "", "lldb")
testCmdIntl("basic", "", "lldb", "normal")
}
if inpath("rr") {
fmt.Println("\nTesting RR backend")
testCmdIntl("basic", "", "rr")
testCmdIntl("basic", "", "rr", "normal")
}
if runtime.GOOS == "linux" {
fmt.Println("\nTesting PIE buildmode, default backend")
testCmdIntl("basic", "", "default", "pie")
testCmdIntl("core", "", "default", "pie")
}
if runtime.GOOS == "linux" && inpath("rr") {
fmt.Println("\nTesting PIE buildmode, RR backend")
testCmdIntl("basic", "", "rr", "pie")
}
return
}
@ -280,10 +297,14 @@ func testCmd(cmd *cobra.Command, args []string) {
TestBackend = "default"
}
testCmdIntl(TestSet, TestRegex, TestBackend)
if TestBuildMode == "" {
TestBuildMode = "normal"
}
testCmdIntl(TestSet, TestRegex, TestBackend, TestBuildMode)
}
func testCmdIntl(testSet, testRegex, testBackend string) {
func testCmdIntl(testSet, testRegex, testBackend, testBuildMode string) {
testPackages := testSetToPackages(testSet)
if len(testPackages) == 0 {
fmt.Printf("Unknown test set %q\n", testSet)
@ -304,12 +325,21 @@ func testCmdIntl(testSet, testRegex, testBackend string) {
backendFlag = "-backend=" + testBackend
}
buildModeFlag := ""
if testBuildMode != "" && testBuildMode != "normal" {
if testSet != "basic" && len(testPackages) != 1 {
fmt.Printf("Can not use test-buildmode with test set %q\n", testSet)
os.Exit(1)
}
buildModeFlag = "-test-buildmode=" + testBuildMode
}
if len(testPackages) > 3 {
execute("go", "test", testFlags(), buildFlags(), testPackages, backendFlag)
executeq("go", "test", testFlags(), buildFlags(), testPackages, backendFlag, buildModeFlag)
} else if testRegex != "" {
execute("go", "test", testFlags(), buildFlags(), testPackages, "-run="+testRegex, backendFlag)
execute("go", "test", testFlags(), buildFlags(), testPackages, "-run="+testRegex, backendFlag, buildModeFlag)
} else {
execute("go", "test", testFlags(), buildFlags(), testPackages, backendFlag)
execute("go", "test", testFlags(), buildFlags(), testPackages, backendFlag, buildModeFlag)
}
}
@ -334,6 +364,13 @@ func testSetToPackages(testSet string) []string {
}
}
func defaultBackend() string {
if runtime.GOOS == "darwin" {
return "lldb"
}
return "native"
}
func inpath(exe string) bool {
path, _ := exec.LookPath(exe)
return path != ""