Linux kernel, Android, Golang & Recsys http://wifihack.net/blog simple is powerful Mon, 20 May 2013 07:32:51 +0000 en-US hourly 1 git 修改注释 http://wifihack.net/blog/2013/05/git-commit-amend/ http://wifihack.net/blog/2013/05/git-commit-amend/#comments Mon, 20 May 2013 07:32:51 +0000 BianJiang http://wifihack.net/blog/?p=821 1. 修改最后一次提交的注释
git commit –amend
2. git使用amend选项提供了最后一次commit的反悔。但是对于历史提交呢，就必须使用rebase了。
git rebase -i HEAD~3
表示要修改当前版本的倒数第三次状态。
这个命令出来之后，会出来三行：
pick:*******
pick:*******
pick:*******
如果你要修改哪个，就把那行的pick改成edit，然后退出。

这时通过git log你可以发现，git的最后一次提交已经变成你选的那个了，这时再使用：
git commit -amend
使用git rebase –continue

]]> http://wifihack.net/blog/2013/05/git-commit-amend/feed/ 0 使用git svn创建一个svn的分支 http://wifihack.net/blog/2013/04/git-svn-remote-svn-remote-branch/ http://wifihack.net/blog/2013/04/git-svn-remote-svn-remote-branch/#comments Mon, 22 Apr 2013 05:30:54 +0000 BianJiang http://wifihack.net/blog/?p=816
git config --add svn-remote.newbranch.url https://svn/path_to_newbranch/
git config --add svn-remote.newbranch.fetch :refs/remotes/newbranch
git svn fetch newbranch [-r]
git checkout -b local-newbranch -t newbranch
git svn rebase newbranch

From: http://stackoverflow.com/questions/296975/how-do-i-tell-git-svn-about-a-remote-branch-created-after-i-fetched-the-repo

]]> http://wifihack.net/blog/2013/04/git-svn-remote-svn-remote-branch/feed/ 0 Mac mkyaffs2image binary Re: HOWTO: Roll Your Own Firmware http://wifihack.net/blog/2013/04/mac-mkyaffs2image-binary-re-howto-roll-your-own-firmware/ http://wifihack.net/blog/2013/04/mac-mkyaffs2image-binary-re-howto-roll-your-own-firmware/#comments Wed, 10 Apr 2013 03:15:50 +0000 BianJiang http://wifihack.net/blog/?p=814 Here’s a Mac (intel 32bit snow leopard) built binary of mkyaffs2image

http://www.multiupload.com/DD76DX276D

I have only tested it so far that it runs. Use at your own peril.

Based on the source from http://code.google.com/p/fatplus/downloads/list .

Got it to compile by adding the following to devextras.h

#if defined(__APPLE__) || defined (__FreeBSD__)
typedef long long loff_t;
#endif

No luck on finding or building a mac binary of unyaffs so far. However, a Windows binary can be found at http://boomtopper.blogspot.com/2009/10/unyaffs-windows-binary.html

From: http://forums.seagate.com/t5/FreeAgent-Theater-and-GoFlexTV/HOWTO-Roll-Your-Own-Firmware/m-p/48669

–EOF–

]]> http://wifihack.net/blog/2013/04/mac-mkyaffs2image-binary-re-howto-roll-your-own-firmware/feed/ 0 /proc/net/tcp文件网络状态 http://wifihack.net/blog/2013/01/procnettcp%e6%96%87%e4%bb%b6%e7%bd%91%e7%bb%9c%e7%8a%b6%e6%80%81/ http://wifihack.net/blog/2013/01/procnettcp%e6%96%87%e4%bb%b6%e7%bd%91%e7%bb%9c%e7%8a%b6%e6%80%81/#comments Mon, 21 Jan 2013 10:01:01 +0000 BianJiang http://wifihack.net/blog/?p=811 when retrnsmt uid timeout inode 0: 0100007F:13AD 00000000:0000 0A 00000000:00000000 00:00000000 00000000 0 0 521 1 dce53a80 300 0 0 2 -1 最主要的，就是local_address本地地址:端口、rem_address远程地址:端口、st连接状态。 注1：文件中都是用的16进制，所以HTTP的80端口记录为0050。 注2：状态码对应如下 00 “ERROR_STATUS”, 01 “TCP_ESTABLISHED”, 02 “TCP_SYN_SENT”, 03 “TCP_SYN_RECV”, 04 “TCP_FIN_WAIT1″, 05 “TCP_FIN_WAIT2″, 06 “TCP_TIME_WAIT”, 07 “TCP_CLOSE”, 08 “TCP_CLOSE_WAIT”, 09 “TCP_LAST_ACK”, 0A [...]]]> /proc/net/tcp或/proc/net/tcp6 文件，这里记录的是ipv4/ipv6下所有tcp连接的情况，包括下列数值：
sl local_address rem_address st tx_queue rx_queue tr tm->when retrnsmt uid timeout inode
0: 0100007F:13AD 00000000:0000 0A 00000000:00000000 00:00000000 00000000 0 0 521 1 dce53a80 300 0 0 2 -1
最主要的，就是local_address本地地址:端口、rem_address远程地址:端口、st连接状态。
注1：文件中都是用的16进制，所以HTTP的80端口记录为0050。
注2：状态码对应如下
00 “ERROR_STATUS”,
01 “TCP_ESTABLISHED”,
02 “TCP_SYN_SENT”,
03 “TCP_SYN_RECV”,
04 “TCP_FIN_WAIT1″,
05 “TCP_FIN_WAIT2″,
06 “TCP_TIME_WAIT”,
07 “TCP_CLOSE”,
08 “TCP_CLOSE_WAIT”,
09 “TCP_LAST_ACK”,
0A “TCP_LISTEN”,
0B “TCP_CLOSING”,

–EOF–

]]> http://wifihack.net/blog/2013/01/procnettcp%e6%96%87%e4%bb%b6%e7%bd%91%e7%bb%9c%e7%8a%b6%e6%80%81/feed/ 0 Script for pack mtk’s boot/recovery image http://wifihack.net/blog/2012/12/script-for-pack-mtks-bootrecovery-image/ http://wifihack.net/blog/2012/12/script-for-pack-mtks-bootrecovery-image/#comments Thu, 20 Dec 2012 08:39:39 +0000 BianJiang http://wifihack.net/blog/?p=805 From: http://www.beautyorange.com/2011/10/script-for-pack-mtks-bootrecovery-image/

mt6573-recovery

1. pack-mtk-boot.sh

1
2
3
4
5
6
7
8
9

cd rmdisk
find . | cpio -o -H newc | gzip > ../new_ram
cd ..
python cksum.py new_ram ram_header
mv ram_header.alt ram_header
dd if=./new_ram >> ./ram_header
mv ram_header ramdisk_new
./mkbootimg --kernel ./kernel_no_header --ramdisk ./ramdisk_new -o ./new_boot.img
rm -rf kernel rmdisk new_ram ramdisk ramdisk_no_header kernel_no_header ramdisk_new

2. pack-mtk-recovery.sh

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20

echo "packing..."
 
cd rmdisk
# Compress ramdisk_no_header
find . | cpio -o -H newc | gzip > ../new_ram
cd ..
# Generate ramdisk_header
python cksum.py new_ram ram_header
# Rename ramdisk_header file
mv ram_header.alt ram_header
# Merge ramdisk_no_header and ramdisk_header
dd if=./new_ram >> ./ram_header
# Rename ramdisk
mv ram_header ramdisk_new
# Make recovery image with kernel_no_header and ramdisk
./mkbootimg --kernel ./kernel_no_header --ramdisk ./ramdisk_new --base 0x10000000 --pagesize 2048 -o ./new_recovery.img
# Clean temp files
rm -rf kernel rmdisk new_ram ramdisk ramdisk_no_header kernel_no_header ramdisk_new
 
echo "Done!"

3. cksum.py

1
2
3
4

import struct
import sys
 
usage = "usage: cksum.py<header>" if len(sys.argv)</header>

–EOF–

]]> http://wifihack.net/blog/2012/12/script-for-pack-mtks-bootrecovery-image/feed/ 0 Script for unpack mtk’s boot/recovery image http://wifihack.net/blog/2012/12/script-for-unpack-mtks-bootrecovery-image/ http://wifihack.net/blog/2012/12/script-for-unpack-mtks-bootrecovery-image/#comments Thu, 20 Dec 2012 08:19:43 +0000 BianJiang http://wifihack.net/blog/?p=801 From: http://www.beautyorange.com/2011/10/script-for-unpack-mtks-bootrecovery-image/

mt6573-recovery-900x254

1. unpack-boot.sh

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23

echo "Unpacking MTK Boot.img..."
 
KER=$(hexdump -C boot.img | grep "KERNEL" | cut --fields=3-10 -d' ');
NUMKER=$(od -A d -t x1 boot.img | grep "$KER" | cut -f1 -d' ');
 
REC=$(hexdump -C boot.img | grep "ROOTFS" | cut --fields=3-10 -d' ');
NUMREC=$(od -A d -t x1 boot.img | grep "$REC" | cut -f1 -d' ');
 
dd if=boot.img of=kernel bs=$NUMREC count=1
dd if=kernel of=kernel_no_header bs=$NUMKER skip=1
 
dd if=boot.img of=ramdisk bs=$NUMREC skip=1
NUMRAM=$(od -A d -t x1 ramdisk | grep "1f 8b 08 00" | cut -f1 -d' ');
 
dd if=ramdisk of=ram_header bs=$NUMRAM count=1
dd if=ramdisk of=ramdisk_no_header.gz bs=$NUMRAM skip=1
 
gunzip ./ramdisk_no_header.gz
mkdir rmdisk
cd rmdisk
cpio -i < ../ramdisk_no_header
 
echo "Done!"

2. unpacking-recovery.sh

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23

echo "Unpacking MTK recovery..."
 
KER=$(hexdump -C recovery.img | grep "KERNEL" | cut --fields=3-10 -d' ');
NUMKER=$(od -A d -t x1 recovery.img | grep "$KER" | cut -f1 -d' ');
 
REC=$(hexdump -C recovery.img | grep "RECOVERY" | cut --fields=3-10 -d' ');
NUMREC=$(od -A d -t x1 recovery.img | grep "$REC" | cut -f1 -d' ');
 
dd if=recovery.img of=kernel bs=$NUMREC count=1
dd if=kernel of=kernel_no_header bs=$NUMKER skip=1
 
dd if=recovery.img of=ramdisk bs=$NUMREC skip=1
NUMRAM=$(od -A d -t x1 ramdisk | grep "1f 8b 08 00" | cut -f1 -d' ');
 
dd if=ramdisk of=ram_header bs=$NUMRAM count=1
dd if=ramdisk of=ramdisk_no_header.gz bs=$NUMRAM skip=1
 
gunzip ./ramdisk_no_header.gz
mkdir rmdisk
cd rmdisk
cpio -i < ../ramdisk_no_header
 
echo "Done!"
]]> http://wifihack.net/blog/2012/12/script-for-unpack-mtks-bootrecovery-image/feed/ 0 在ubuntu上面安装谷歌拼音输入法libgooglepinyin http://wifihack.net/blog/2012/11/install-google-pinyin-on-ubuntu/ http://wifihack.net/blog/2012/11/install-google-pinyin-on-ubuntu/#comments Mon, 05 Nov 2012 08:19:54 +0000 BianJiang http://wifihack.net/blog/?p=794 ubuntu自动的拼音输入发实在是太难用了, 前段时间无意中看到一个linux环境下面的谷歌拼音输入法libgooglepinyin，试用了一段时间，感觉非常不错。

安装过程非常简单, 具体过程如下:

1. 按照必要的编译环境如: GCC, cmake 等

1

sudo apt-get install cmake build-essential opencc mercurial ibus

2. 安装谷歌输入法libgooglepinyin

1
2
3
4
5
6
7
8
9

hg clone http://code.google.com/p/libgooglepinyin/
 
cd libgooglepinyin
 
mkdir build; cd build
cmake .. -DCMAKE_INSTALL_PREFIX=/usr
 
make
sudo make install

3. 安装ibus皮肤 ibus-googlepinyin

1
2
3
4
5
6
7
8
9

hg clone http://code.google.com/p/libgooglepinyin.ibus-wrapper/ ibus-googlepinyin
 
cd ibus-googlepinyin
 
mkdir build; cd build
cmake .. -DCMAKE_INSTALL_PREFIX=/usr
 
make
sudo make install

4. 重新启动ibus-daemon

1

sudo killall -9 ibus-daemon

5. ibus配置谷歌输入法

打开 IBUS设置 → 输入法 → 选择输入法→ 汉语 → GooglePinyin，然后将其上升到顶，或者把其他的输入法删掉。

更详细的安装过程参考: http://code.google.com/p/libgooglepinyin/wiki/INSTALL

-EOF-

]]> http://wifihack.net/blog/2012/11/install-google-pinyin-on-ubuntu/feed/ 2 Go语言开放工具之Emacs http://wifihack.net/blog/2012/09/golang-ide-emacs/ http://wifihack.net/blog/2012/09/golang-ide-emacs/#comments Tue, 04 Sep 2012 14:03:54 +0000 BianJiang http://wifihack.net/blog/?p=787 原文放在@astaxie 写的“build web application with golang”书里面。

下面只把Emacs里面的拿出来，如果需要参考vim，liteide和Sublime text的请一步 https://github.com/astaxie/build-web-application-with-golang/blob/master/1.4.md

Emacs主要是使用了gocode, speedbar, 并把一些go的命令融合进来。

## Emacs
Emacs传说中的神器，她不仅仅是一个编辑器，它是一个整合环境，或可称它为集成开发环境，这些功能如让使用者置身于全功能的操作系统中

1. 配置Emacs高亮显示

cp $GOROOT/misc/emacs/* ~/.emacs.d/

2. 安装[Gocode](https://github.com/nsf/gocode/)

go get -u github.com/nsf/gocode

gocode默认安装到$GOPATH/bin里面下面，需要把$GOPATH/bin路径设置到系统PATH里面。

3. 配置[Gocode](https://github.com/nsf/gocode/)

~ cd $GOPATH/src/github.com/nsf/gocode/emacs
~ cp go-autocomplete.el ~/.emacs.d/
~ gocode set propose-builtins true
propose-builtins true
~ gocode set lib-path “/home/border/gocode/pkg/linux_amd64″ // 换为你自己的路径
lib-path “/home/border/gocode/pkg/linux_amd64″
~ gocode set
propose-builtins true
lib-path “/home/border/gocode/pkg/linux_amd64″

4. 需要安装 [Auto Completion](http://www.emacswiki.org/emacs/AutoComplete)

下载AutoComplete并解压

~ make install DIR=$HOME/.emacs.d/auto-complete

配置~/.emacs文件

;;auto-complete
(require ‘auto-complete-config)
(add-to-list ‘ac-dictionary-directories “~/.emacs.d/auto-complete/ac-dict”)
(ac-config-default)
(local-set-key (kbd “M-/”) ‘semantic-complete-analyze-inline)
(local-set-key “.” ‘semantic-complete-self-insert)
(local-set-key “>” ‘semantic-complete-self-insert)

详细信息参考: http://www.emacswiki.org/emacs/AutoComplete

5. 配置.emacs

;; golang mode
(require ‘go-mode-load)
(require ‘go-autocomplete)
;; speedbar
;; (speedbar 1)
(speedbar-add-supported-extension “.go”)
(add-hook
‘go-mode-hook
‘(lambda ()
;; gocode
(auto-complete-mode 1)
(setq ac-sources ‘(ac-source-go))
;; Imenu & Speedbar
(setq imenu-generic-expression
‘((“type” “^type *\\([^ \t\n\r\f]*\\)” 1)
(“func” “^func *\\(.*\\) {” 1)))
(imenu-add-to-menubar “Index”)
;; Outline mode
(make-local-variable ‘outline-regexp)
(setq outline-regexp “//\\.\\|//[^\r\n\f][^\r\n\f]\\|pack\\|func\\|impo\\|cons\\|var.\\|type\\|\t\t*….”)
(outline-minor-mode 1)
(local-set-key “\M-a” ‘outline-previous-visible-heading)
(local-set-key “\M-e” ‘outline-next-visible-heading)
;; Menu bar
(require ‘easymenu)
(defconst go-hooked-menu
‘(“Go tools”
["Go run buffer" go t]
["Go reformat buffer" go-fmt-buffer t]
["Go check buffer" go-fix-buffer t]))
(easy-menu-define
go-added-menu
(current-local-map)
“Go tools”
go-hooked-menu)

;; Other
(setq show-trailing-whitespace t)
))
;; helper function
(defun go ()
“run current buffer”
(interactive)
(compile (concat “go run ” (buffer-file-name))))

;; helper function
(defun go-fmt-buffer ()
“run gofmt on current buffer”
(interactive)
(if buffer-read-only
(progn
(ding)
(message “Buffer is read only”))
(let ((p (line-number-at-pos))
(filename (buffer-file-name))
(old-max-mini-window-height max-mini-window-height))
(show-all)
(if (get-buffer “*Go Reformat Errors*”)
(progn
(delete-windows-on “*Go Reformat Errors*”)
(kill-buffer “*Go Reformat Errors*”)))
(setq max-mini-window-height 1)
(if (= 0 (shell-command-on-region (point-min) (point-max) “gofmt” “*Go Reformat Output*” nil “*Go Reformat Errors*” t))
(progn
(erase-buffer)
(insert-buffer-substring “*Go Reformat Output*”)
(goto-char (point-min))
(forward-line (1- p)))
(with-current-buffer “*Go Reformat Errors*”
(progn
(goto-char (point-min))
(while (re-search-forward “” nil t)
(replace-match filename))
(goto-char (point-min))
(compilation-mode))))
(setq max-mini-window-height old-max-mini-window-height)
(delete-windows-on “*Go Reformat Output*”)
(kill-buffer “*Go Reformat Output*”))))
;; helper function
(defun go-fix-buffer ()
“run gofix on current buffer”
(interactive)
(show-all)
(shell-command-on-region (point-min) (point-max) “go tool fix -diff”))

6. 恭喜你，你现在可以体验在神器中开发Go的乐趣. 默认speedbar是关闭的，如果打开需要把 ;; (speedbar 1) 前面的注释去掉，或者也可以通过 *M-x speedbar* 手动开启。

参考:
1. Go & Emacs http://www.let.rug.nl/~kleiweg/go/go-emacs.html
2. https://github.com/border/emacs

–EOF–

]]> http://wifihack.net/blog/2012/09/golang-ide-emacs/feed/ 1 Sina微薄oauth2验证Go实现 http://wifihack.net/blog/2012/09/sina-weibo-oauth2-login-with-golang/ http://wifihack.net/blog/2012/09/sina-weibo-oauth2-login-with-golang/#comments Tue, 04 Sep 2012 03:04:58 +0000 BianJiang http://wifihack.net/blog/?p=784 Sina微薄oauth2验证Go实现的方法:
格式化后的代码在: https://gist.github.com/3607494

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140

// Copyright 2012 Jiang Bian (borderj@gmail.com). All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
 
// Email: borderj@gmail.com
// Blog: http://wifihack.net/
 
// Sina WeiBo oauth2 Login, Base on goauth2 lib
package main
 
import (
	"code.google.com/p/goauth2/oauth"
	//"crypto/tls"
	"fmt"
	"io/ioutil"
	"log"
	"net/http"
	"strings"
	"text/template"
)
 
var notAuthenticatedTemplate = template.Must(template.New("").Parse(`
<html><body>
You have currently not given permissions to access your data.
<form action="/authorize" method="POST"><input type="submit" value="Ok, authorize this app with my id"/></form>
</form>
</body></html>
`))
 
var userInfoTemplate = template.Must(template.New("").Parse(`
<html><body>
Please Input Your Sina User Name:
<form action="/getuserinfo" method="POST">
<input type="input" name="userinfo" value="b0rder"/>
<input type="submit" value="Get User Info"/>
</form>
</body></html>
`))
 
// variables used during oauth protocol flow of authentication
var (
	code  = ""
	token = ""
)
 
var oauthCfg = &oauth.Config{
	ClientId:     "2168100802",
	ClientSecret: "29da9ac80a8387c52e59ec6c957d2e1b",
	AuthURL:      "https://api.weibo.com/oauth2/authorize",
	TokenURL:     "https://api.weibo.com/oauth2/access_token",
	RedirectURL:  "http://127.0.0.1:8080/oauth2callback",
	Scope:        "",
}
 
const profileInfoURL = "https://api.weibo.com/2/users/show.json"
const port = ":8080"
 
func main() {
	http.HandleFunc("/", handleRoot)
	http.HandleFunc("/authorize", handleAuthorize)
 
	http.HandleFunc("/oauth2callback", handleOAuth2Callback)
	http.HandleFunc("/getuserinfo", getUserInfo)
 
	log.Println("Listen On" + port)
	http.ListenAndServe(port, nil)
}
 
func handleRoot(w http.ResponseWriter, r *http.Request) {
	notAuthenticatedTemplate.Execute(w, nil)
}
 
// Start the authorization process
func handleAuthorize(w http.ResponseWriter, r *http.Request) {
	//Get the Google URL which shows the Authentication page to the user
	url := oauthCfg.AuthCodeURL("")
 
	log.Printf("URL: %v\n", url)
	//redirect user to that page
	http.Redirect(w, r, url, http.StatusFound)
}
 
// Function that handles the callback from the Google server
func handleOAuth2Callback(w http.ResponseWriter, r *http.Request) {
	//Get the code from the response
	code := r.FormValue("code")
 
	t := &oauth.Transport{oauth.Config: oauthCfg}
 
	// Exchange the received code for a token
	tok, _ := t.Exchange(code)
 
	{
		tokenCache := oauth.CacheFile("./request.token")
 
		err := tokenCache.PutToken(tok)
		if err != nil {
			log.Fatal("Cache write:", err)
		}
		log.Printf("Token is cached in %v\n", tokenCache)
		token = tok.AccessToken
	}
 
	/*
		// Skip TLS Verify
		t.Transport = &http.Transport{
		    TLSClientConfig: &tls.Config{InsecureSkipVerify: true},
		}
	*/
 
	userInfoTemplate.Execute(w, nil)
 
}
 
// Get Sina User Info
func getUserInfo(w http.ResponseWriter, r *http.Request) {
	if token == "" {
		log.Println("Get Access Token Error")
		http.Redirect(w, r, "/", http.StatusFound)
		return
	}
	user := r.FormValue("userinfo")
	if strings.TrimSpace(user) == "" {
		w.Write([]byte("Please Input User Name"))
		return
	}
 
	url := fmt.Sprintf("%s?screen_name=%s&access_token=%s", profileInfoURL, user, token)
	log.Println("url: " + url)
 
	resp, err := http.Get(url)
	defer resp.Body.Close()
 
	if err != nil {
		log.Fatal("Request Error:", err)
	}
 
	body, _ := ioutil.ReadAll(resp.Body)
	w.Write(body)
}
]]> http://wifihack.net/blog/2012/09/sina-weibo-oauth2-login-with-golang/feed/ 0 Go Release相关说明 http://wifihack.net/blog/2012/09/go-release%e7%9b%b8%e5%85%b3%e8%af%b4%e6%98%8e/ http://wifihack.net/blog/2012/09/go-release%e7%9b%b8%e5%85%b3%e8%af%b4%e6%98%8e/#comments Sat, 01 Sep 2012 13:50:50 +0000 BianJiang http://wifihack.net/blog/?p=780 By: minux.ma # gmail.com
FROM: https://groups.google.com/group/golang-china/msg/f71b2bd13b239313

今天在邮件列表里面讨论GC相关的问题的时候，聊到了Go Release发行相关的流程，@minux 详细总结了一下，下面原文。
PS: @minux 给Go核心代码里面提交了不少代码。

Dmitriy Vyukov前一阵（5月）在搞这个，已经提交了以下改动，
http://codereview.appspot.com/6223050 faster GC mark phase
http://codereview.appspot.com/6215065 faster GC sweep phase
后来又有几个小的性能微调，其他的暂时不知道；

PS: 可能还有人不清楚，我详细说下Go release相关的事情：
1, Go 1之后取消weekly发布，理由是这样会fragment user base
至少在短期内不会恢复；想要尝鲜的直接建议使用default分支；它是足够稳定的；

2, 当积累了足够的重要的bugfixes之后，会考虑发布一个新的Go 1.0.x版本；
其特点是：cherry pick一部分default分支的commit到release分支；要求是
不引入任何API改动（新加入API都不会考虑，如果一个bugfix必须引入新API，
那么要么这个改动不被选择要么会把导出符号改成非导出符号）；保证用户
可以安全升级。

这个版本的发布流程大概包括如下三歩：
(1) 在golang-dev发布一个表格指示哪些commit计划被加入新的发布；此阶段
接受意见，但是绝大多数情况下只会接受反对加入某个commit的意见；想要
加入一个新commit是要花很大精力的。
这个表格以CL的形式发布方便大家评论。
示例：http://codereview.appspot.com/6279048/ （cherry pick的过程是自动的，
这个CL里面包含所需要的所有脚本）
(2) 在golang-dev发布几个preview，但是都不打包，需要自己去clone然后测试，
面向开发者
比如这个：https://groups.google.com/d/topic/golang-dev/9UtB9iZBo4o/discussion
(3) 发布
在所有支持的系统上编译测试然后制作安装包，测试；上传到

http://code.google.com/p/go/downloads/list；然后在go-nuts发布更新说明；

关于Go 1.0.3的发布日期到现在也没有确定；而且还有标记优先级为Soon的问题
没解决，所以可能还得等等；

3，经过足够考验后的default分支在合适的时候用来发布Go 1.1
所有前段时间的改变，包括新添加的API会在这个时候发布出来。
也就是这次会是个merge。据说是今年年底发布这个。
-EOF-

]]> http://wifihack.net/blog/2012/09/go-release%e7%9b%b8%e5%85%b3%e8%af%b4%e6%98%8e/feed/ 0 Building android 4.0.4 for P7300 http://wifihack.net/blog/2012/07/building-android-4-for-p7300/ http://wifihack.net/blog/2012/07/building-android-4-for-p7300/#comments Wed, 18 Jul 2012 05:40:46 +0000 BianJiang http://wifihack.net/blog/?p=776 在下载android代码时候耗时比较长，一个比较简单的方法就是先在本地建个镜像，然后再根据本地的镜像来进行更新，能减少不少时间。

比如: P7300 相关的操作如下.
repo init -u https://github.com/Galaxian-Soup/android.git –mirror
repo init -u https://github.com/Galaxian-Soup/android.git -b ics –reference=git://127.0.0.1/galaxian-soup.mirror/android.git

在编译Android 4.0.4 r2的时候出现的错误信息，修改如下:

host C++: libMesa <= external/mesa3d/src/glsl/loop_unroll.cpp
In file included from external/mesa3d/src/glsl/ir.h:38:0,
from external/mesa3d/src/glsl/loop_analysis.h:29,
from external/mesa3d/src/glsl/loop_unroll.cpp:25:
external/mesa3d/src/glsl/ir_visitor.h:48:17: warning: 'virtual void ir_visitor::visit(ir_function_signature*)' was hidden [-Woverloaded-virtual]
external/mesa3d/src/glsl/ir_visitor.h:81:17: warning: by 'ir_control_flow_visitor::visit' [-Woverloaded-virtual]
external/mesa3d/src/glsl/ir_visitor.h:49:17: warning: 'virtual void ir_visitor::visit(ir_function*)' was hidden [-Woverloaded-virtual]
external/mesa3d/src/glsl/ir_visitor.h:81:17: warning: by 'ir_control_flow_visitor::visit' [-Woverloaded-virtual]
external/mesa3d/src/glsl/ir_visitor.h:59:17: warning: 'virtual void ir_visitor::visit(ir_return*)' was hidden [-Woverloaded-virtual]
external/mesa3d/src/glsl/ir_visitor.h:81:17: warning: by 'ir_control_flow_visitor::visit' [-Woverloaded-virtual]
external/mesa3d/src/glsl/ir_visitor.h:60:17: warning: 'virtual void ir_visitor::visit(ir_discard*)' was hidden [-Woverloaded-virtual]
external/mesa3d/src/glsl/ir_visitor.h:81:17: warning: by 'ir_control_flow_visitor::visit' [-Woverloaded-virtual]
external/mesa3d/src/glsl/ir_visitor.h:61:17: warning: 'virtual void ir_visitor::visit(ir_if*)' was hidden [-Woverloaded-virtual]
external/mesa3d/src/glsl/ir_visitor.h:81:17: warning: by 'ir_control_flow_visitor::visit' [-Woverloaded-virtual]
external/mesa3d/src/glsl/ir_visitor.h:62:17: warning: 'virtual void ir_visitor::visit(ir_loop*)' was hidden [-Woverloaded-virtual]
external/mesa3d/src/glsl/ir_visitor.h:81:17: warning: by 'ir_control_flow_visitor::visit' [-Woverloaded-virtual]
external/mesa3d/src/glsl/ir_visitor.h:63:17: warning: 'virtual void ir_visitor::visit(ir_loop_jump*)' was hidden [-Woverloaded-virtual]
external/mesa3d/src/glsl/ir_visitor.h:81:17: warning: by 'ir_control_flow_visitor::visit' [-Woverloaded-virtual]
external/mesa3d/src/glsl/ir_hierarchical_visitor.h:114:30: warning: 'virtual ir_visitor_status ir_hierarchical_visitor::visit_leave(ir_function_signature*)' was hidden [-Woverloaded-virtual]
external/mesa3d/src/glsl/loop_unroll.cpp:37:30: warning: by 'virtual ir_visitor_status loop_unroll_visitor::visit_leave(ir_loop*)' [-Woverloaded-virtual]
external/mesa3d/src/glsl/ir_hierarchical_visitor.h:116:30: warning: 'virtual ir_visitor_status ir_hierarchical_visitor::visit_leave(ir_function*)' was hidden [-Woverloaded-virtual]
external/mesa3d/src/glsl/loop_unroll.cpp:37:30: warning: by 'virtual ir_visitor_status loop_unroll_visitor::visit_leave(ir_loop*)' [-Woverloaded-virtual]
external/mesa3d/src/glsl/ir_hierarchical_visitor.h:118:30: warning: 'virtual ir_visitor_status ir_hierarchical_visitor::visit_leave(ir_expression*)' was hidden [-Woverloaded-virtual]
external/mesa3d/src/glsl/loop_unroll.cpp:37:30: warning: by 'virtual ir_visitor_status loop_unroll_visitor::visit_leave(ir_loop*)' [-Woverloaded-virtual]
external/mesa3d/src/glsl/ir_hierarchical_visitor.h:120:30: warning: 'virtual ir_visitor_status ir_hierarchical_visitor::visit_leave(ir_texture*)' was hidden [-Woverloaded-virtual]
external/mesa3d/src/glsl/loop_unroll.cpp:37:30: warning: by 'virtual ir_visitor_status loop_unroll_visitor::visit_leave(ir_loop*)' [-Woverloaded-virtual]
external/mesa3d/src/glsl/ir_hierarchical_visitor.h:122:30: warning: 'virtual ir_visitor_status ir_hierarchical_visitor::visit_leave(ir_swizzle*)' was hidden [-Woverloaded-virtual]
external/mesa3d/src/glsl/loop_unroll.cpp:37:30: warning: by 'virtual ir_visitor_status loop_unroll_visitor::visit_leave(ir_loop*)' [-Woverloaded-virtual]
external/mesa3d/src/glsl/ir_hierarchical_visitor.h:124:30: warning: 'virtual ir_visitor_status ir_hierarchical_visitor::visit_leave(ir_dereference_array*)' was hidden [-Woverloaded-virtual]
external/mesa3d/src/glsl/loop_unroll.cpp:37:30: warning: by 'virtual ir_visitor_status loop_unroll_visitor::visit_leave(ir_loop*)' [-Woverloaded-virtual]
external/mesa3d/src/glsl/ir_hierarchical_visitor.h:126:30: warning: 'virtual ir_visitor_status ir_hierarchical_visitor::visit_leave(ir_dereference_record*)' was hidden [-Woverloaded-virtual]
external/mesa3d/src/glsl/loop_unroll.cpp:37:30: warning: by 'virtual ir_visitor_status loop_unroll_visitor::visit_leave(ir_loop*)' [-Woverloaded-virtual]
external/mesa3d/src/glsl/ir_hierarchical_visitor.h:128:30: warning: 'virtual ir_visitor_status ir_hierarchical_visitor::visit_leave(ir_assignment*)' was hidden [-Woverloaded-virtual]
external/mesa3d/src/glsl/loop_unroll.cpp:37:30: warning: by 'virtual ir_visitor_status loop_unroll_visitor::visit_leave(ir_loop*)' [-Woverloaded-virtual]
external/mesa3d/src/glsl/ir_hierarchical_visitor.h:130:30: warning: 'virtual ir_visitor_status ir_hierarchical_visitor::visit_leave(ir_call*)' was hidden [-Woverloaded-virtual]
external/mesa3d/src/glsl/loop_unroll.cpp:37:30: warning: by 'virtual ir_visitor_status loop_unroll_visitor::visit_leave(ir_loop*)' [-Woverloaded-virtual]
external/mesa3d/src/glsl/ir_hierarchical_visitor.h:132:30: warning: 'virtual ir_visitor_status ir_hierarchical_visitor::visit_leave(ir_return*)' was hidden [-Woverloaded-virtual]
external/mesa3d/src/glsl/loop_unroll.cpp:37:30: warning: by 'virtual ir_visitor_status loop_unroll_visitor::visit_leave(ir_loop*)' [-Woverloaded-virtual]
external/mesa3d/src/glsl/ir_hierarchical_visitor.h:134:30: warning: 'virtual ir_visitor_status ir_hierarchical_visitor::visit_leave(ir_discard*)' was hidden [-Woverloaded-virtual]
external/mesa3d/src/glsl/loop_unroll.cpp:37:30: warning: by 'virtual ir_visitor_status loop_unroll_visitor::visit_leave(ir_loop*)' [-Woverloaded-virtual]
external/mesa3d/src/glsl/ir_hierarchical_visitor.h:136:30: warning: 'virtual ir_visitor_status ir_hierarchical_visitor::visit_leave(ir_if*)' was hidden [-Woverloaded-virtual]
external/mesa3d/src/glsl/loop_unroll.cpp:37:30: warning: by 'virtual ir_visitor_status loop_unroll_visitor::visit_leave(ir_loop*)' [-Woverloaded-virtual]
In file included from external/mesa3d/src/glsl/ir.h:38:0,
from external/mesa3d/src/glsl/glsl_symbol_table.h:34,
from external/mesa3d/src/glsl/linker.cpp:78:
external/mesa3d/src/glsl/ir_visitor.h:48:17: warning: 'virtual void ir_visitor::visit(ir_function_signature*)' was hidden [-Woverloaded-virtual]
external/mesa3d/src/glsl/ir_visitor.h:81:17: warning: by 'ir_control_flow_visitor::visit' [-Woverloaded-virtual]
external/mesa3d/src/glsl/ir_visitor.h:49:17: warning: 'virtual void ir_visitor::visit(ir_function*)' was hidden [-Woverloaded-virtual]
external/mesa3d/src/glsl/ir_visitor.h:81:17: warning: by 'ir_control_flow_visitor::visit' [-Woverloaded-virtual]
external/mesa3d/src/glsl/ir_visitor.h:59:17: warning: 'virtual void ir_visitor::visit(ir_return*)' was hidden [-Woverloaded-virtual]
external/mesa3d/src/glsl/ir_visitor.h:81:17: warning: by 'ir_control_flow_visitor::visit' [-Woverloaded-virtual]
external/mesa3d/src/glsl/ir_visitor.h:60:17: warning: 'virtual void ir_visitor::visit(ir_discard*)' was hidden [-Woverloaded-virtual]
external/mesa3d/src/glsl/ir_visitor.h:81:17: warning: by 'ir_control_flow_visitor::visit' [-Woverloaded-virtual]
external/mesa3d/src/glsl/ir_visitor.h:61:17: warning: 'virtual void ir_visitor::visit(ir_if*)' was hidden [-Woverloaded-virtual]
external/mesa3d/src/glsl/ir_visitor.h:81:17: warning: by 'ir_control_flow_visitor::visit' [-Woverloaded-virtual]
external/mesa3d/src/glsl/ir_visitor.h:62:17: warning: 'virtual void ir_visitor::visit(ir_loop*)' was hidden [-Woverloaded-virtual]
external/mesa3d/src/glsl/ir_visitor.h:81:17: warning: by 'ir_control_flow_visitor::visit' [-Woverloaded-virtual]
external/mesa3d/src/glsl/ir_visitor.h:63:17: warning: 'virtual void ir_visitor::visit(ir_loop_jump*)' was hidden [-Woverloaded-virtual]
external/mesa3d/src/glsl/ir_visitor.h:81:17: warning: by 'ir_control_flow_visitor::visit' [-Woverloaded-virtual]
external/mesa3d/src/glsl/ir_hierarchical_visitor.h:111:30: warning: 'virtual ir_visitor_status ir_hierarchical_visitor::visit_enter(ir_loop*)' was hidden [-Woverloaded-virtual]
external/mesa3d/src/glsl/linker.cpp:110:30: warning: by 'find_assignment_visitor::visit_enter' [-Woverloaded-virtual]
external/mesa3d/src/glsl/ir_hierarchical_visitor.h:113:30: warning: 'virtual ir_visitor_status ir_hierarchical_visitor::visit_enter(ir_function_signature*)' was hidden [-Woverloaded-virtual]
external/mesa3d/src/glsl/linker.cpp:110:30: warning: by 'find_assignment_visitor::visit_enter' [-Woverloaded-virtual]
external/mesa3d/src/glsl/ir_hierarchical_visitor.h:115:30: warning: 'virtual ir_visitor_status ir_hierarchical_visitor::visit_enter(ir_function*)' was hidden [-Woverloaded-virtual]
external/mesa3d/src/glsl/linker.cpp:110:30: warning: by 'find_assignment_visitor::visit_enter' [-Woverloaded-virtual]
external/mesa3d/src/glsl/ir_hierarchical_visitor.h:117:30: warning: 'virtual ir_visitor_status ir_hierarchical_visitor::visit_enter(ir_expression*)' was hidden [-Woverloaded-virtual]
external/mesa3d/src/glsl/linker.cpp:110:30: warning: by 'find_assignment_visitor::visit_enter' [-Woverloaded-virtual]
external/mesa3d/src/glsl/ir_hierarchical_visitor.h:119:30: warning: 'virtual ir_visitor_status ir_hierarchical_visitor::visit_enter(ir_texture*)' was hidden [-Woverloaded-virtual]
external/mesa3d/src/glsl/linker.cpp:110:30: warning: by 'find_assignment_visitor::visit_enter' [-Woverloaded-virtual]
external/mesa3d/src/glsl/ir_hierarchical_visitor.h:121:30: warning: 'virtual ir_visitor_status ir_hierarchical_visitor::visit_enter(ir_swizzle*)' was hidden [-Woverloaded-virtual]
external/mesa3d/src/glsl/linker.cpp:110:30: warning: by 'find_assignment_visitor::visit_enter' [-Woverloaded-virtual]
external/mesa3d/src/glsl/ir_hierarchical_visitor.h:123:30: warning: 'virtual ir_visitor_status ir_hierarchical_visitor::visit_enter(ir_dereference_array*)' was hidden [-Woverloaded-virtual]
external/mesa3d/src/glsl/linker.cpp:110:30: warning: by 'find_assignment_visitor::visit_enter' [-Woverloaded-virtual]
external/mesa3d/src/glsl/ir_hierarchical_visitor.h:125:30: warning: 'virtual ir_visitor_status ir_hierarchical_visitor::visit_enter(ir_dereference_record*)' was hidden [-Woverloaded-virtual]
external/mesa3d/src/glsl/linker.cpp:110:30: warning: by 'find_assignment_visitor::visit_enter' [-Woverloaded-virtual]
external/mesa3d/src/glsl/ir_hierarchical_visitor.h:131:30: warning: 'virtual ir_visitor_status ir_hierarchical_visitor::visit_enter(ir_return*)' was hidden [-Woverloaded-virtual]
external/mesa3d/src/glsl/linker.cpp:110:30: warning: by 'find_assignment_visitor::visit_enter' [-Woverloaded-virtual]
external/mesa3d/src/glsl/ir_hierarchical_visitor.h:133:30: warning: 'virtual ir_visitor_status ir_hierarchical_visitor::visit_enter(ir_discard*)' was hidden [-Woverloaded-virtual]
external/mesa3d/src/glsl/linker.cpp:110:30: warning: by 'find_assignment_visitor::visit_enter' [-Woverloaded-virtual]
external/mesa3d/src/glsl/ir_hierarchical_visitor.h:135:30: warning: 'virtual ir_visitor_status ir_hierarchical_visitor::visit_enter(ir_if*)' was hidden [-Woverloaded-virtual]
external/mesa3d/src/glsl/linker.cpp:110:30: warning: by 'find_assignment_visitor::visit_enter' [-Woverloaded-virtual]
external/mesa3d/src/glsl/ir_hierarchical_visitor.h:86:30: warning: 'virtual ir_visitor_status ir_hierarchical_visitor::visit(ir_variable*)' was hidden [-Woverloaded-virtual]
external/mesa3d/src/glsl/linker.cpp:153:30: warning: by 'virtual ir_visitor_status find_deref_visitor::visit(ir_dereference_variable*)' [-Woverloaded-virtual]
external/mesa3d/src/glsl/ir_hierarchical_visitor.h:87:30: warning: 'virtual ir_visitor_status ir_hierarchical_visitor::visit(ir_constant*)' was hidden [-Woverloaded-virtual]
external/mesa3d/src/glsl/linker.cpp:153:30: warning: by 'virtual ir_visitor_status find_deref_visitor::visit(ir_dereference_variable*)' [-Woverloaded-virtual]
external/mesa3d/src/glsl/ir_hierarchical_visitor.h:88:30: warning: 'virtual ir_visitor_status ir_hierarchical_visitor::visit(ir_loop_jump*)' was hidden [-Woverloaded-virtual]
external/mesa3d/src/glsl/linker.cpp:153:30: warning: by 'virtual ir_visitor_status find_deref_visitor::visit(ir_dereference_variable*)' [-Woverloaded-virtual]
external/mesa3d/src/glsl/ir_hierarchical_visitor.h: In function 'void remap_variables(ir_instruction*, gl_shader*, hash_table*)':
external/mesa3d/src/glsl/ir_hierarchical_visitor.h:86:30: warning: 'virtual ir_visitor_status ir_hierarchical_visitor::visit(ir_variable*)' was hidden [-Woverloaded-virtual]
external/mesa3d/src/glsl/linker.cpp:623:33: warning: by 'virtual ir_visitor_status remap_variables(ir_instruction*, gl_shader*, hash_table*)::remap_visitor::visit(ir_dereference_variable*)' [-Woverloaded-virtual]
external/mesa3d/src/glsl/ir_hierarchical_visitor.h:87:30: warning: 'virtual ir_visitor_status ir_hierarchical_visitor::visit(ir_constant*)' was hidden [-Woverloaded-virtual]
external/mesa3d/src/glsl/linker.cpp:623:33: warning: by 'virtual ir_visitor_status remap_variables(ir_instruction*, gl_shader*, hash_table*)::remap_visitor::visit(ir_dereference_variable*)' [-Woverloaded-virtual]
external/mesa3d/src/glsl/ir_hierarchical_visitor.h:88:30: warning: 'virtual ir_visitor_status ir_hierarchical_visitor::visit(ir_loop_jump*)' was hidden [-Woverloaded-virtual]
external/mesa3d/src/glsl/linker.cpp:623:33: warning: by 'virtual ir_visitor_status remap_variables(ir_instruction*, gl_shader*, hash_table*)::remap_visitor::visit(ir_dereference_variable*)' [-Woverloaded-virtual]
external/mesa3d/src/glsl/linker.cpp: In function 'void assign_varying_locations(gl_shader_program*, gl_shader*, gl_shader*)':
external/mesa3d/src/glsl/linker.cpp:1394:49: error: expected primary-expression before ',' token
external/mesa3d/src/glsl/linker.cpp:1394:50: error: 'varyings' was not declared in this scope
external/mesa3d/src/glsl/linker.cpp:1394:58: error: 'offsetof' was not declared in this scope
external/mesa3d/src/glsl/linker.cpp:1395:48: error: expected primary-expression before ',' token
external/mesa3d/src/glsl/linker.cpp:1412:47: error: expected primary-expression before ',' token
external/mesa3d/src/glsl/linker.cpp:1412:48: error: 'position' was not declared in this scope
external/mesa3d/src/glsl/linker.cpp:1414:47: error: expected primary-expression before ',' token
external/mesa3d/src/glsl/linker.cpp:1414:48: error: 'pointSize' was not declared in this scope
external/mesa3d/src/glsl/linker.cpp:1424:47: error: expected primary-expression before ',' token
external/mesa3d/src/glsl/linker.cpp:1424:48: error: 'position' was not declared in this scope
external/mesa3d/src/glsl/linker.cpp:1428:47: error: expected primary-expression before ',' token
external/mesa3d/src/glsl/linker.cpp:1428:48: error: 'frontFacingPointCoord' was not declared in this scope
external/mesa3d/src/glsl/linker.cpp:1431:47: error: expected primary-expression before ',' token
external/mesa3d/src/glsl/linker.cpp:1431:48: error: 'frontFacingPointCoord' was not declared in this scope
external/mesa3d/src/glsl/linker.cpp: In function 'void link_shaders(const gl_context*, gl_shader_program*)':
external/mesa3d/src/glsl/linker.cpp:1734:49: error: expected primary-expression before ',' token
external/mesa3d/src/glsl/linker.cpp:1734:50: error: 'fragColor' was not declared in this scope
external/mesa3d/src/glsl/linker.cpp:1734:59: error: 'offsetof' was not declared in this scope
make: *** [out/host/linux-x86/obj/STATIC_LIBRARIES/libMesa_intermediates/src/glsl/linker.o] Error 1
make: *** Waiting for unfinished jobs....

解决这个问题需要修改文件如下：

把 "#include ” 添加到 linker.cpp 文件头部。

====================================================

host C++: liboprofile_pp <= external/oprofile/libpp/arrange_profiles.cpp
In file included from external/oprofile/libpp/arrange_profiles.cpp:24:0:
external/oprofile/libpp/format_output.h:94:22: error: reference 'counts' cannot be declared 'mutable' [-fpermissive]
host C++: liboprofile_pp <= external/oprofile/libpp/callgraph_container.cpp
make: *** [out/host/linux-x86/obj/STATIC_LIBRARIES/liboprofile_pp_intermediates/arrange_profiles.o] Error 1
make: *** Waiting for unfinished jobs....

解决方法：
需要修改external/oprofile/libpp/format_output.h:94行
mutable counts_t & counts为
counts_t & counts

====================================================

external/gtest/src/../include/gtest/internal/gtest-param-util.h:122:11: error: 'ptrdiff_t' does not name a type
make: *** [out/host/linux-x86/obj/STATIC_LIBRARIES/libgtest_main_host_intermediates/gtest_main.o] Error 1
make: *** Waiting for unfinished jobs....
In file included from external/gtest/src/gtest-all.cc:38:0:
external/gtest/src/../src/gtest-filepath.cc: In member function 'bool testing::internal::FilePath::FileOrDirectoryExists() const':
external/gtest/src/../src/gtest-filepath.cc:180:28: warning: missing initializer for member 'stat::st_dev' [-Wmissing-field-initializers]
external/gtest/src/../src/gtest-filepath.cc:180:28: warning: missing initializer for member 'stat::__pad1' [-Wmissing-field-initializers]
external/gtest/src/../src/gtest-filepath.cc:180:28: warning: missing initializer for member 'stat::__st_ino' [-Wmissing-field-initializers]
external/gtest/src/../src/gtest-filepath.cc:180:28: warning: missing initializer for member 'stat::st_mode' [-Wmissing-field-initializers]
external/gtest/src/../src/gtest-filepath.cc:180:28: warning: missing initializer for member 'stat::st_nlink' [-Wmissing-field-initializers]
external/gtest/src/../src/gtest-filepath.cc:180:28: warning: missing initializer for member 'stat::st_uid' [-Wmissing-field-initializers]
external/gtest/src/../src/gtest-filepath.cc:180:28: warning: missing initializer for member 'stat::st_gid' [-Wmissing-field-initializers]
external/gtest/src/../src/gtest-filepath.cc:180:28: warning: missing initializer for member 'stat::st_rdev' [-Wmissing-field-initializers]
external/gtest/src/../src/gtest-filepath.cc:180:28: warning: missing initializer for member 'stat::__pad2' [-Wmissing-field-initializers]
external/gtest/src/../src/gtest-filepath.cc:180:28: warning: missing initializer for member 'stat::st_size' [-Wmissing-field-initializers]
external/gtest/src/../src/gtest-filepath.cc:180:28: warning: missing initializer for member 'stat::st_blksize' [-Wmissing-field-initializers]
external/gtest/src/../src/gtest-filepath.cc:180:28: warning: missing initializer for member 'stat::st_blocks' [-Wmissing-field-initializers]
external/gtest/src/../src/gtest-filepath.cc:180:28: warning: missing initializer for member 'stat::st_atim' [-Wmissing-field-initializers]
external/gtest/src/../src/gtest-filepath.cc:180:28: warning: missing initializer for member 'stat::st_mtim' [-Wmissing-field-initializers]
external/gtest/src/../src/gtest-filepath.cc:180:28: warning: missing initializer for member 'stat::st_ctim' [-Wmissing-field-initializers]
external/gtest/src/../src/gtest-filepath.cc:180:28: warning: missing initializer for member 'stat::st_ino' [-Wmissing-field-initializers]
external/gtest/src/../src/gtest-filepath.cc: In member function 'bool testing::internal::FilePath::DirectoryExists() const':
external/gtest/src/../src/gtest-filepath.cc:208:28: warning: missing initializer for member 'stat::st_dev' [-Wmissing-field-initializers]
external/gtest/src/../src/gtest-filepath.cc:208:28: warning: missing initializer for member 'stat::__pad1' [-Wmissing-field-initializers]
external/gtest/src/../src/gtest-filepath.cc:208:28: warning: missing initializer for member 'stat::__st_ino' [-Wmissing-field-initializers]
external/gtest/src/../src/gtest-filepath.cc:208:28: warning: missing initializer for member 'stat::st_mode' [-Wmissing-field-initializers]
external/gtest/src/../src/gtest-filepath.cc:208:28: warning: missing initializer for member 'stat::st_nlink' [-Wmissing-field-initializers]
external/gtest/src/../src/gtest-filepath.cc:208:28: warning: missing initializer for member 'stat::st_uid' [-Wmissing-field-initializers]
external/gtest/src/../src/gtest-filepath.cc:208:28: warning: missing initializer for member 'stat::st_gid' [-Wmissing-field-initializers]
external/gtest/src/../src/gtest-filepath.cc:208:28: warning: missing initializer for member 'stat::st_rdev' [-Wmissing-field-initializers]
external/gtest/src/../src/gtest-filepath.cc:208:28: warning: missing initializer for member 'stat::__pad2' [-Wmissing-field-initializers]
external/gtest/src/../src/gtest-filepath.cc:208:28: warning: missing initializer for member 'stat::st_size' [-Wmissing-field-initializers]
external/gtest/src/../src/gtest-filepath.cc:208:28: warning: missing initializer for member 'stat::st_blksize' [-Wmissing-field-initializers]
external/gtest/src/../src/gtest-filepath.cc:208:28: warning: missing initializer for member 'stat::st_blocks' [-Wmissing-field-initializers]
external/gtest/src/../src/gtest-filepath.cc:208:28: warning: missing initializer for member 'stat::st_atim' [-Wmissing-field-initializers]
external/gtest/src/../src/gtest-filepath.cc:208:28: warning: missing initializer for member 'stat::st_mtim' [-Wmissing-field-initializers]
external/gtest/src/../src/gtest-filepath.cc:208:28: warning: missing initializer for member 'stat::st_ctim' [-Wmissing-field-initializers]
external/gtest/src/../src/gtest-filepath.cc:208:28: warning: missing initializer for member 'stat::st_ino' [-Wmissing-field-initializers]
frameworks/base/media/mtp/MtpDataPacket.cpp: In member function 'int android::MtpDataPacket::read(usb_request*)':
frameworks/base/media/mtp/MtpDataPacket.cpp:387:30: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
make: *** [out/host/linux-x86/obj/STATIC_LIBRARIES/libgtest_host_intermediates/gtest-all.o] Error 1

解决方法：
$vi external/gtest/src/../include/gtest/internal/gtest-param-util.h
+#include

====================================================

host C++: llvm-rs-cc <= frameworks/compile/slang/slang_rs_reflection.cpp
frameworks/compile/slang/slang_rs_export_foreach.cpp: In static member function ‘static slang::RSExportForEach* slang::RSExportForEach::Create(slang::RSContext*, const clang::FunctionDecl*)’:
frameworks/compile/slang/slang_rs_export_foreach.cpp:249:23: error: variable ‘ParamName’ set but not used [-Werror=unused-but-set-variable]
cc1plus: all warnings being treated as errors

make: *** [out/host/linux-x86/obj/EXECUTABLES/llvm-rs-cc_intermediates/slang_rs_export_foreach.o] Error 1
make: *** Waiting for unfinished jobs….

解决办法：
vim frameworks/compile/slang/Android.mk
把：
local_cflags_for_slang := -Wno-sign-promo -Wall -Wno-unused-parameter -Werror
改为：
local_cflags_for_slang := -Wno-sign-promo -Wall -Wno-unused-parameter
参考：http://code.google.com/p/android/issues/detail?id=22006#c0
参考：http://groups.google.com/group/android-building/browse_thread/thread/0207abb98ed72304

-EOF-

]]> http://wifihack.net/blog/2012/07/building-android-4-for-p7300/feed/ 0 把Android源码中的密码对转换为keystore的方法 http://wifihack.net/blog/2012/05/%e6%8a%8aandroid%e6%ba%90%e7%a0%81%e4%b8%ad%e7%9a%84%e5%af%86%e7%a0%81%e5%af%b9%e8%bd%ac%e6%8d%a2%e4%b8%bakeystore%e7%9a%84%e6%96%b9%e6%b3%95/ http://wifihack.net/blog/2012/05/%e6%8a%8aandroid%e6%ba%90%e7%a0%81%e4%b8%ad%e7%9a%84%e5%af%86%e7%a0%81%e5%af%b9%e8%bd%ac%e6%8d%a2%e4%b8%bakeystore%e7%9a%84%e6%96%b9%e6%b3%95/#comments Wed, 30 May 2012 02:26:34 +0000 BianJiang http://wifihack.net/blog/?p=774 把Android源码中的密码对转换为keystore的方法
原文作者: Yongce
原文链接: http://www.goafter.info/2011/07/09/36.html

如果要在Eclipse中调试Android源码中非test key签名的程序（也就是使用platform, media or shared key签名的程序），需要把Android源码中的公私钥对（build/target/product/security）转换为Eclipse能够使用的keystore。

转换步骤如下：

0. 把build/target/product/security下面的某对需要转换的key拷贝到一个你的工作目录

（下面以shared key为例：shared.pk8 & shared.x509.pem）

1. 把pkcs8格式的私钥转换为pkcs12格式：

$ openssl pkcs8 -in shared.pk8 -inform DER -outform PEM -out shared.priv.pem -nocrypt

2.生成pkcs12格式的密钥文件：

$ openssl pkcs12 -export -in shared.x509.pem -inkey shared.priv.pem -out shared.pk12 -name androiddebugkey

(注：此过程中需要输入密码：android)

3.生成keystore：

$ keytool -importkeystore -deststorepass android -destkeypass android -destkeystore debug.keystore -srckeystore shared.pk12 -srcstoretype PKCS12 -srcstorepass android -alias androiddebugkey

至此，已经生成keystore：debug.keystore

在Eclipse的Windows/Preferences/Android/Build中设置“Custom debug keystore“为刚才生成的keystore即可。

对于其它类型的key，步骤相同。

–EOF–

]]> http://wifihack.net/blog/2012/05/%e6%8a%8aandroid%e6%ba%90%e7%a0%81%e4%b8%ad%e7%9a%84%e5%af%86%e7%a0%81%e5%af%b9%e8%bd%ac%e6%8d%a2%e4%b8%bakeystore%e7%9a%84%e6%96%b9%e6%b3%95/feed/ 0 Emacs块操作 http://wifihack.net/blog/2012/05/block-text-in-emacs/ http://wifihack.net/blog/2012/05/block-text-in-emacs/#comments Mon, 28 May 2012 07:44:15 +0000 BianJiang http://wifihack.net/blog/?p=771 参考: How do I intelligently indent a block of text in Emacs?
http://www.quora.com/How-do-I-intelligently-indent-a-block-of-text-in-Emacs

块选择: C-Space 或者 C-@ 开始进行块选择。

可以通过C-n, C-p, C-v 等进行选择。

块删除: C-w

快缩进: C-u C-x TAB 移动一个TAB(4个空格)，  C-u -4 C-x TAB 删除4个空格

 

]]> http://wifihack.net/blog/2012/05/block-text-in-emacs/feed/ 0 windows版本的Emacs无法显示图片的解决方法 http://wifihack.net/blog/2012/05/windows-emacs-cant-display-picture-of-the-solution/ http://wifihack.net/blog/2012/05/windows-emacs-cant-display-picture-of-the-solution/#comments Sun, 27 May 2012 00:53:24 +0000 BianJiang http://wifihack.net/blog/?p=766 原文参考: http://blog.csdn.net/atskyline/article/details/7569621

可以先在运行下面几个语句检查一下是否已经支持了图片

(image-type-available-p ‘png)

(image-type-available-p ‘gif)

(image-type-available-p ‘jpeg)

(image-type-available-p ‘tiff)

(image-type-available-p ‘xbm)

(image-type-available-p ‘xpm)

这几个函数复制到随便Lisp模式的buffer，

然后在每一行行尾按C-j，就可以看到每个函数运行的结果，返回t证明已经可以支持图片了。

Win 的不能显示图片是因为编译后默认没有带几个DLL文件。

把以下DLL文件拷贝到EMACS安装目录的BIN目录下，就可以显示图片了。

jpeg62.dll
libgcrypt-11.dll
libgnutls-26.dll
libpng14-14.dll
libtasn1-3.dll
libtiff3.dll
libungif4.dll
libXpm.dll
xpm4.dll
zlib1.dll

这些文件都可以在

http://gnuwin32.sourceforge.net/packages.html

一个个下载到。

另外一个比较快的方法了在

https://code.google.com/p/emacs-for-windows/downloads/list

有已经修改过的EMACS版本。

我把emacs里面图片相关的链接库单独提取出来供大家下载使用:
emacs-images

–EOF-

]]> http://wifihack.net/blog/2012/05/windows-emacs-cant-display-picture-of-the-solution/feed/ 1 Android基于ClockworkMod Recovery(CWM)的系统升级 http://wifihack.net/blog/2012/04/android-clockworkmod-recovery-system-updat/ http://wifihack.net/blog/2012/04/android-clockworkmod-recovery-system-updat/#comments Wed, 18 Apr 2012 13:29:47 +0000 BianJiang http://wifihack.net/blog/?p=760 Android 系统自带了升级的接库RecoverySystem.installPackage，但是通过installPackage进入ClockworkMod Recovery(CWM)后，包的签名验证是打开的，导致升级错误。但是在实践中发现，如果通过自己手动按键进入CWM Recovery模式后，签名验证默认是关闭的，而自己通过APK升级进入后验证是打开的，这个就说明签名验证是可以通过外部参数调整的。由于CWM本身是不开源的，无法看到具体的实现细节，只能通过反编译，RomManager的日志和猜。

CWM提供了一个配套的RomManager.apk进行升级，那我们就从RomManager.apk下手。

通过分析RomManager.apk的日志，发现RomManager.apk在运行的时候会通过一个 rommanager.sh 的脚本，来进行相关的reboot 并进入recovery模式。

1
2
3
4
5
6
7

border@kvbian:~ s$ cat rommanager.sh 
mkdir -p /cache/recovery ; cat /data/data/com.koushikdutta.rommanager/files/extendedcommand > /cache/recovery/extendedcommand ;  rm /cache/recovery/command ; mkdir -p /sdcard/clockworkmod ; echo 1 > /sdcard/clockworkmod/.recoverycheckpoint ;  reboot recovery ;
border@kvbian:~ s$ cat extendedcommand 
ui_print("ROM Manager Version 5.0.0.5");
ui_print("2012年4月18日");
ui_print("Preparing to install ROM...");
assert(install_zip("/sdcard/update/kvbian-rom-signed-20120417-2112.zip"));

从上面的rommanager.sh 脚本可以看出:
CWM如果要取消签名验证进行升级，不能使用Android默认的
/cache/recovery/command 文件进行相关的命令。
而是使用 /cache/recovery/extendedcommand 执行相关的升级命令。

同时要在 /sdcard/clockworkmod/.recoverycheckpoint 文件做相关的标记。

相关的升级代码:
权限:

1
2

    <uses-permission android:name="android.permission.ACCESS_CACHE_FILESYSTEM" />
    <uses-permission android:name="android.permission.REBOOT" />

Java 代码(完成的程序参考: 升级程序RomUpdate下载):

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209

package com.kvbian.romupdate;
 
import java.io.File;
import java.io.FileOutputStream;
import java.io.FileWriter;
import java.io.IOException;
import java.io.InputStream;
import java.net.HttpURLConnection;
import java.net.MalformedURLException;
import java.net.URL;
 
import android.app.Activity;
import android.content.Context;
import android.os.Bundle;
import android.os.PowerManager;
import android.os.StrictMode;
import android.util.Log;
import android.widget.TextView;
 
/**
 * @author Jiang Bian
 * mail: borderj@gmail.com
 * blog: http://wifihack.net
 *
 */
public class RomUpdateActivity extends Activity {
    /** Called when the activity is first created. */
 
    /*
     * Android 3.0
     * 测试机器: GT-P7300/GT-P7310
     *  本程序之在 ClockworkMod_Recovery_v5.5.0.4 版本测试过，其他版本没有测试。
     *  ClockworkMod Recovery(CWM) 如果要取消签名验证进行升级，不能使用Android默认的
     *  /cache/recovery/command 文件进行相关的命令。
     *  而是使用 /cache/recovery/extendedcommand 执行相关的升级命令。
     *  
     *  同时要在 /sdcard/clockworkmod/.recoverycheckpoint 文件做相关的标记。
     * 
     * 本文参考: 
     *  1. frameworks/base/core/java/android/os/RecoverySystem.java
     *  2. bootable/recovery/recovery.c
     *  3. RomManager.apk
     */
 
    private static final String TAG = "RomUpdateActivity";
 
    private static final String ROM_DOWNLOAD_URL = "http://192.168.1.66/update.zip";
 
    private static final String ROMPATH = "/sdcard/update.zip";
 
    private static int buffer_size = 1024 * 10;
 
    /** Used to communicate with recovery.  See bootable/recovery/recovery.c. */
    private static File RECOVERY_DIR = new File("/cache/recovery");
    private static File CLOCK_WORK_MOD_DIR = new File("/sdcard/clockworkmod");
 
    private static File CLOCK_WORK_MOD_CHECKPOINT_FILE = new File(CLOCK_WORK_MOD_DIR, ".recoverycheckpoint");
    private static File COMMAND_FILE = new File(RECOVERY_DIR, "command");
    //     // /cache/recovery/extendedcommand
    private static File EXTENDED_FILE = new File(RECOVERY_DIR, "extendedcommand");
    private static File LOG_FILE = new File(RECOVERY_DIR, "log");
 
    /**
     * Reboot into the recovery system with the supplied argument.
     * @throws IOException if something goes wrong.
     *  From: frameworks/base/core/java/android/os/RecoverySystem.java
 
border@kvbian:~ s$ cat rommanager.sh 
mkdir -p /cache/recovery ; cat /data/data/com.koushikdutta.rommanager/files/extendedcommand > /cache/recovery/extendedcommand ;  rm /cache/recovery/command ; mkdir -p /sdcard/clockworkmod ; echo 1 > /sdcard/clockworkmod/.recoverycheckpoint ;  reboot recovery ;
border@kvbian:~ s$ cat extendedcommand 
ui_print("ROM Manager Version 5.0.0.5");
ui_print("2012年4月18日");
ui_print("Preparing to install ROM...");
assert(install_zip("/sdcard/update/kvbian-rom-signed-20120417-2112.zip"));
     */
    private  void bootCommand(Context context) throws IOException {
        RECOVERY_DIR.mkdirs();  // In case we need it
        CLOCK_WORK_MOD_DIR.mkdirs();
 
        EXTENDED_FILE.delete();
        COMMAND_FILE.delete();  // In case it's not writable
        CLOCK_WORK_MOD_CHECKPOINT_FILE.delete();
        LOG_FILE.delete();
 
        Log.v(TAG, "write ClockWorkMod Checkpoint File: " + CLOCK_WORK_MOD_CHECKPOINT_FILE.getAbsolutePath());
        FileWriter checkpoint = new FileWriter(CLOCK_WORK_MOD_CHECKPOINT_FILE);
 
        try {
            checkpoint.write("1");
            checkpoint.write("\n");
        } finally {
            checkpoint.close();
        }
 
        Log.v(TAG, "write Extended Command File: " + EXTENDED_FILE.getAbsolutePath());
        Log.v(TAG, "write Extended Command File args: " + ROMPATH);
        FileWriter command = new FileWriter(EXTENDED_FILE);
 
        try {
            command.write("ui_print(\"ZPad ROM Manager Version:\"); ");
            command.write("\n");
            command.write("ui_print(\"2012.4.18\");");
            command.write("\n");
            command.write("ui_print(\"Preparing to install ROM...\");");
            command.write("\n");
            //assert(install_zip("/sdcard/update/kvbian-rom-signed-20120417-2112.zip"));
            command.write("assert(install_zip(\"" + ROMPATH  + "\"));");
            command.write("\n");
        } finally {
            command.close();
        }
 
        /**
         * boot-recovery
         * recovery
         */
        // Having written the command file, go ahead and reboot
        PowerManager pm = (PowerManager) context.getSystemService(Context.POWER_SERVICE);
        //pm.reboot("recovery");
        pm.reboot("recovery");
    }
 
 
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
 
        StrictMode.setThreadPolicy(new StrictMode.ThreadPolicy.Builder()
                .detectDiskReads().detectDiskWrites().detectNetwork() // or
                                                                      // .detectAll()
                                                                      // for
                                                                      // all
                                                                      // detectable
                                                                      // problems
                .penaltyLog().build());
        StrictMode.setVmPolicy(new StrictMode.VmPolicy.Builder()
                .detectLeakedSqlLiteObjects().detectLeakedClosableObjects()
                .penaltyLog().penaltyDeath().build());
 
        // getRomFromNet(ROM_DOWNLOAD_URL);
        romUpdate(this);
 
        TextView tv = new TextView(this);
        tv.setText("RomUpdate Version: 1.1 - 2012.4.18");
        setContentView(tv);
    }
 
    public void romUpdate(Context context) {
 
        try {
            bootCommand(context);
 
        } catch (IOException e) {
            Log.v(TAG, e.getMessage());
            e.printStackTrace();
        }
    }
 
    public void getRomFromNet(String romURL) {
 
        try {
            // set the download URL, a url that points to a file on the internet
            // this is the file to be downloaded
            Log.v(TAG, "   -------------  url: " + romURL + " -------------  ");
 
            URL url = new URL(romURL);
 
            // create the new connection
            HttpURLConnection urlConnection = (HttpURLConnection) url
                    .openConnection();
 
            File file = new File(ROMPATH);
 
            // this will be used in reading the data from the internet
            InputStream inputStream = urlConnection.getInputStream();
 
            // this is the total size of the file
            int totalSize = urlConnection.getContentLength();
 
            // variable to store total downloaded bytes
            int downloadedSize = 0;
 
            // create a buffer...
            byte[] buffer = new byte[1024];
            int bufferLength = 0; // used to store a temporary size of the
 
            Log.v(TAG, "Download From [" + romURL + "], Save File To: "
                    + ROMPATH + "]");
 
            FileOutputStream fileOutput = new FileOutputStream(file);
 
            while ((bufferLength = inputStream.read(buffer)) > 0) {
 
                fileOutput.write(buffer, 0, bufferLength);
 
                downloadedSize += bufferLength;
            }
            // close the output stream when done
            fileOutput.close();
            Log.v(TAG, " Save File To: [" + ROMPATH + "]");
        } catch (MalformedURLException e) {
            e.printStackTrace();
        } catch (IOException e) {
            e.printStackTrace();
        }
 
    }
 
}

测试机器: GT-P7300/GT-P7310
测试环境: Android 3.0
在 ClockworkMod_Recovery_v5.5.0.4 版本测试过，其他版本没有测试。

本文参考:
1. frameworks/base/core/java/android/os/RecoverySystem.java
2. bootable/recovery/recovery.c
3. RomManager.apk
4. 升级程序RomUpdate下载

]]> http://wifihack.net/blog/2012/04/android-clockworkmod-recovery-system-updat/feed/ 18