// 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.

// Parse input AST and prepare Prog structure.

package main

import (
	"fmt"
	"go/ast"
	"go/format"
	"go/parser"
	"go/scanner"
	"go/token"
	"os"
	"strings"
)

func parse(name string, src []byte, flags parser.Mode) *ast.File {

// one.

import (
	"bytes"
	"debug/elf"
	"os"
	"testing"
)

func testBuildID(t *testing.T) {
	f, err := elf.Open("/proc/self/exe")
	if err != nil {
		if os.IsNotExist(err) {
			t.Skip("no /proc/self/exe")
		}
		t.Fatal("opening /proc/self/exe: ", err)
	}
	defer f.Close()

	c := 0
sections:
	for i, s := range f.Sections {
		if s.Type != elf.SHT_NOTE {
			continue
		}

func ARMConditionCodes(prog *obj.Prog, cond string) bool {
	if cond == "" {
		return true
	}
	bits, ok := ParseARMCondition(cond)
	if !ok {
		return false
	}
	/* hack to make B.NE etc. work: turn it into the corresponding conditional */
	if prog.As == arm.AB {
		prog.As = bcode[(bits^arm.C_SCOND_XOR)&0xf]
		bits = (bits &^ 0xf) | arm.C_SCOND_NONE
	}
	prog.Scond = bits
	return true
}

	expected := filter + expect
	pid := syscall.Getpid()
	fs, err := os.ReadDir(fmt.Sprintf("/proc/%d/task", pid))
	if err != nil {
		return fmt.Errorf("unable to find %d tasks: %v", pid, err)
	}
	expectedProc := fmt.Sprintf("Pid:\t%d", pid)
	foundAThread := false
	for _, f := range fs {
		tf := fmt.Sprintf("/proc/%s/status", f.Name())
		d, err := os.ReadFile(tf)
		if err != nil {

			// so we don't know how they correspond to Go fields
			// even if they are aligned at byte boundaries.
			continue
		}

		if talign > 0 && f.ByteOffset%talign != 0 {
			// Drop misaligned fields, the same way we drop integer bit fields.
			// The goal is to make available what can be made available.
			// Otherwise one bad and unneeded field in an otherwise okay struct

pkg syscall (darwin-arm64), const PROT_EXEC = 4
pkg syscall (darwin-arm64), const PROT_EXEC ideal-int
pkg syscall (darwin-arm64), const PROT_NONE = 0
pkg syscall (darwin-arm64), const PROT_NONE ideal-int
pkg syscall (darwin-arm64), const PROT_READ = 1
pkg syscall (darwin-arm64), const PROT_READ ideal-int
pkg syscall (darwin-arm64), const PROT_WRITE = 2
pkg syscall (darwin-arm64), const PROT_WRITE ideal-int

pkg syscall (freebsd-arm64), const PROT_EXEC = 4
pkg syscall (freebsd-arm64), const PROT_EXEC ideal-int
pkg syscall (freebsd-arm64), const PROT_NONE = 0
pkg syscall (freebsd-arm64), const PROT_NONE ideal-int
pkg syscall (freebsd-arm64), const PROT_READ = 1
pkg syscall (freebsd-arm64), const PROT_READ ideal-int
pkg syscall (freebsd-arm64), const PROT_WRITE = 2
pkg syscall (freebsd-arm64), const PROT_WRITE ideal-int

pkg syscall (freebsd-riscv64), const PROT_EXEC = 4 #53466
pkg syscall (freebsd-riscv64), const PROT_EXEC ideal-int #53466
pkg syscall (freebsd-riscv64), const PROT_NONE = 0 #53466
pkg syscall (freebsd-riscv64), const PROT_NONE ideal-int #53466
pkg syscall (freebsd-riscv64), const PROT_READ = 1 #53466
pkg syscall (freebsd-riscv64), const PROT_READ ideal-int #53466

	if string(m) != expect {
		t.Errorf("rot13: expected %q got %q", expect, m)
	}

	// 5. Drop
	dropNotLatin := func(r rune) rune {
		if unicode.Is(unicode.Latin, r) {
			return r
		}
		return -1
	}
	m = Map(dropNotLatin, []byte("Hello, 세계"))
	expect = "Hello"
	if string(m) != expect {
		t.Errorf("drop: expected %q got %q", expect, m)
	}

	// 6. Invalid rune

	MOVD SPR(3), 4(R1)              // 7fe302a6fbe10004
	MOVD XER, 4(R1)                 // 7fe102a6fbe10004
	MOVD 4(R1), SPR(3)              // ebe100047fe303a6
	MOVD 4(R1), XER                 // ebe100047fe103a6
	PNOP                            // 0700000000000000

	SETB CR1,R3                     // 7c640100
	VCLZLSBB V1,R2                  // 10400e02
	VCTZLSBB V1,R2                  // 10410e02