diff options
Diffstat (limited to 'vendor/golang.org/x/sys/unix/mkpost.go')
-rw-r--r-- | vendor/golang.org/x/sys/unix/mkpost.go | 88 |
1 files changed, 0 insertions, 88 deletions
diff --git a/vendor/golang.org/x/sys/unix/mkpost.go b/vendor/golang.org/x/sys/unix/mkpost.go deleted file mode 100644 index d3ff659..0000000 --- a/vendor/golang.org/x/sys/unix/mkpost.go +++ /dev/null @@ -1,88 +0,0 @@ -// Copyright 2016 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. - -// +build ignore - -// mkpost processes the output of cgo -godefs to -// modify the generated types. It is used to clean up -// the sys API in an architecture specific manner. -// -// mkpost is run after cgo -godefs; see README.md. -package main - -import ( - "bytes" - "fmt" - "go/format" - "io/ioutil" - "log" - "os" - "regexp" -) - -func main() { - // Get the OS and architecture (using GOARCH_TARGET if it exists) - goos := os.Getenv("GOOS") - goarch := os.Getenv("GOARCH_TARGET") - if goarch == "" { - goarch = os.Getenv("GOARCH") - } - // Check that we are using the new build system if we should be. - if goos == "linux" && goarch != "sparc64" { - if os.Getenv("GOLANG_SYS_BUILD") != "docker" { - os.Stderr.WriteString("In the new build system, mkpost should not be called directly.\n") - os.Stderr.WriteString("See README.md\n") - os.Exit(1) - } - } - - b, err := ioutil.ReadAll(os.Stdin) - if err != nil { - log.Fatal(err) - } - - // If we have empty Ptrace structs, we should delete them. Only s390x emits - // nonempty Ptrace structs. - ptraceRexexp := regexp.MustCompile(`type Ptrace((Psw|Fpregs|Per) struct {\s*})`) - b = ptraceRexexp.ReplaceAll(b, nil) - - // Replace the control_regs union with a blank identifier for now. - controlRegsRegex := regexp.MustCompile(`(Control_regs)\s+\[0\]uint64`) - b = controlRegsRegex.ReplaceAll(b, []byte("_ [0]uint64")) - - // Remove fields that are added by glibc - // Note that this is unstable as the identifers are private. - removeFieldsRegex := regexp.MustCompile(`X__glibc\S*`) - b = removeFieldsRegex.ReplaceAll(b, []byte("_")) - - // We refuse to export private fields on s390x - if goarch == "s390x" && goos == "linux" { - // Remove cgo padding fields - removeFieldsRegex := regexp.MustCompile(`Pad_cgo_\d+`) - b = removeFieldsRegex.ReplaceAll(b, []byte("_")) - - // Remove padding, hidden, or unused fields - removeFieldsRegex = regexp.MustCompile(`X_\S+`) - b = removeFieldsRegex.ReplaceAll(b, []byte("_")) - } - - // Remove the first line of warning from cgo - b = b[bytes.IndexByte(b, '\n')+1:] - // Modify the command in the header to include: - // mkpost, our own warning, and a build tag. - replacement := fmt.Sprintf(`$1 | go run mkpost.go -// Code generated by the command above; see README.md. DO NOT EDIT. - -// +build %s,%s`, goarch, goos) - cgoCommandRegex := regexp.MustCompile(`(cgo -godefs .*)`) - b = cgoCommandRegex.ReplaceAll(b, []byte(replacement)) - - // gofmt - b, err = format.Source(b) - if err != nil { - log.Fatal(err) - } - - os.Stdout.Write(b) -} |