reeze

> [百度Lamp技术博客](/) 原创作品，转载时请务必以超链接形式标明文章 [原始出处](http://lamp.baidu.com/2014/11/03/hhvm-in-baidu/) 、作者信息和本声明。否则将追究法律责任。

##背景
HHVM 其前身是hiphop(hphpc)，进行php代码->cpp代码->二进制的转换，这个引擎属于静态编译优化，在Facebook应用了4年（2007-2011），但是由于开发、编译、调试、维护并不方便，所以2011年12月Facebook 开始了HHVM的开发和调研；
也就是hiphop->hphpi->hhvm的一个发展。

1. HipHop PHP: 将PHP代码翻译成C++代码，然后编译成二进制运行
1. hphpi: 为了解决编译太慢的问题，实现的一个PHP解释器，不过代码和hphpc很多都不一样，有很多的问题
1. HHVM：一个真正的虚拟机，目标是和Zend VM保持兼容。

reeze

# 2014-11-09 Issue #2 第二期

Arch Weekly ——arch同学共同整理的技术周报

> 投稿专线： tbrd_arch@baidu.com hi群 QQ群

## 会议

1. AWS亚马逊技术峰会：<http://www.awssummitbeijing.com/index.html?Code=infoq>

reeze

{ 
  :'pt-BR' => {

    # formatos de data e hora
    :date => {
      :formats => {
        :default      => "%d/%m/%Y",
        :short        => lambda { |date| "#{date.day} %b" },
        :long         => lambda { |date| "#{date.day} de %B de %Y" },
        :only_day     => "%e"

reeze

git checkout origin/osx
HEAD is now at 77edf8d... Tidying up and an attempt to measure shared memory.
git checkout-index -af --prefix=/private/tmp/homebrew-htop-HEAD-9yJ0/
==> ./autogen.sh
./autogen.sh 
glibtoolize: putting auxiliary files in `.'.
glibtoolize: copying file `./ltmain.sh'
glibtoolize: putting macros in AC_CONFIG_MACRO_DIR, `m4'.
glibtoolize: copying file `m4/libtool.m4'
glibtoolize: copying file `m4/ltoptions.m4'

reeze

Max Battery Life Checklist

Here is a checklist to follow if you want maximum battery life -- for instance if you're about to get on a long plane flight.

Low power use checklist

With power connected:

reeze

➜  Opensource  git config --global core.autocrlf      
input
➜  Opensource  git clone https://github.com/php/php-src.git php-src-clean
Cloning into php-src-clean...
remote: Counting objects: 492188, done.
remote: Compressing objects: 100% (99071/99071), done.
remote: Total 492188 (delta 392149), reused 491908 (delta 391913)
Receiving objects: 100% (492188/492188), 108.91 MiB | 221 KiB/s, done.
Resolving deltas: 100% (392149/392149), done.
➜  Opensource  cd php-src-clean 

reeze

➜  Opensource  git config --global core.autocrlf
false
➜  Opensource  git clone https://github.com/php/php-src.git php-src-clean
Cloning into php-src-clean...
remote: Counting objects: 492188, done.
remote: Compressing objects: 100% (99071/99071), done.
remote: Total 492188 (delta 392149), reused 491908 (delta 391913)
Receiving objects: 100% (492188/492188), 108.91 MiB | 1.08 MiB/s, done.
Resolving deltas: 100% (392149/392149), done.
➜  Opensource  cd php-src-clean 

reeze

➜  php-src git:(PHP-5.4) ✗ gdb sapi/cli/php
GNU gdb 6.3.50-20050815 (Apple version gdb-1705) (Fri Jul  1 10:50:06 UTC 2011)
Copyright 2004 Free Software Foundation, Inc.
GDB is free software, covered by the GNU General Public License, and you are
welcome to change it and/or distribute copies of it under certain conditions.
Type "show copying" to see the conditions.
There is absolutely no warranty for GDB.  Type "show warranty" for details.
This GDB was configured as "x86_64-apple-darwin"...Reading symbols for shared libraries ....... done

(gdb) b gc_zval_possible_root

reeze

diff --git a/sapi/cli/php_cli_server.c b/sapi/cli/php_cli_server.c
index a3ed390..45c5f4a 100644
--- a/sapi/cli/php_cli_server.c
+++ b/sapi/cli/php_cli_server.c
@@ -1285,8 +1285,8 @@ static void php_cli_server_request_translate_vpath(php_cli_server_request *reque
 	struct stat sb;
 	static const char *index_files[] = { "index.php", "index.html", NULL };
 	char *buf = safe_pemalloc(1, request->vpath_len, 1 + document_root_len + 1 + sizeof("index.html"), 1);
-	char *p = buf, *prev_patch = 0, *q, *vpath;
-	size_t prev_patch_len;

reeze

diff --git a/build/config-stubs b/build/config-stubs
index 765eb54..0d84f4b 100755
--- a/build/config-stubs
+++ b/build/config-stubs
@@ -6,5 +6,11 @@ dir=$1; shift
 for stubfile in $dir/*/config0.m4 $dir/*/config.m4 $dir/*/config9.m4; do
     echo "config_m4_src=$stubfile
 config_m4_dir=`dirname $stubfile`
+
+dnl Define where extension directories are located in the configure context