【记录】cygwin下用arm-xscale-linux-gnueabi交叉编译libcgi

【背景】

折腾：

【记录】用交叉编译器arm-xscale-linux-gnueabi交叉编译一个基于嵌入式Linux的无线HART的项目

期间，却发现，include的路径中有：

-I xxx/armxscalelibcgi/include

所以，还需要一个库libcgi。

其中，此处已有源码：libcgi-1.0

【折腾过程】

1.先去看看代码和配置：

CLi@PC-CLI-1 ~/develop/libcgi/libcgi-1.0
$ ls
AUTHORS*  autogen.sh*  BUGS*  ChangeLog*  configure*  configure.in*  doc/  examples/  install-sh*  Makefile.in*  README*  src/  THANKS*  TODO*
 
CLi@PC-CLI-1 ~/develop/libcgi/libcgi-1.0
$ ./configure --help
Usage: configure [options] [host]
Options: [defaults in brackets after descriptions]
Configuration:
  --cache-file=FILE       cache test results in FILE
  --help                  print this message
  --no-create             do not create output files
  --quiet, --silent       do not print `checking...' messages
  --version               print the version of autoconf that created configure
Directory and file names:
  --prefix=PREFIX         install architecture-independent files in PREFIX
                          [/usr/local]
  --exec-prefix=EPREFIX   install architecture-dependent files in EPREFIX
                          [same as prefix]
  --bindir=DIR            user executables in DIR [EPREFIX/bin]
  --sbindir=DIR           system admin executables in DIR [EPREFIX/sbin]
  --libexecdir=DIR        program executables in DIR [EPREFIX/libexec]
  --datadir=DIR           read-only architecture-independent data in DIR
                          [PREFIX/share]
  --sysconfdir=DIR        read-only single-machine data in DIR [PREFIX/etc]
  --sharedstatedir=DIR    modifiable architecture-independent data in DIR
                          [PREFIX/com]
  --localstatedir=DIR     modifiable single-machine data in DIR [PREFIX/var]
  --libdir=DIR            object code libraries in DIR [EPREFIX/lib]
  --includedir=DIR        C header files in DIR [PREFIX/include]
  --oldincludedir=DIR     C header files for non-gcc in DIR [/usr/include]
  --infodir=DIR           info documentation in DIR [PREFIX/info]
  --mandir=DIR            man documentation in DIR [PREFIX/man]
  --srcdir=DIR            find the sources in DIR [configure dir or ..]
  --program-prefix=PREFIX prepend PREFIX to installed program names
  --program-suffix=SUFFIX append SUFFIX to installed program names
  --program-transform-name=PROGRAM
                          run sed PROGRAM on installed program names
Host type:
  --build=BUILD           configure for building on BUILD [BUILD=HOST]
  --host=HOST             configure for HOST [guessed]
  --target=TARGET         configure for TARGET [TARGET=HOST]
Features and packages:
  --disable-FEATURE       do not include FEATURE (same as --enable-FEATURE=no)
  --enable-FEATURE[=ARG]  include FEATURE [ARG=yes]
  --with-PACKAGE[=ARG]    use PACKAGE [ARG=yes]
  --without-PACKAGE       do not use PACKAGE (same as --with-PACKAGE=no)
  --x-includes=DIR        X include files are in DIR
  --x-libraries=DIR       X library files are in DIR
 
CLi@PC-CLI-1 ~/develop/libcgi/libcgi-1.0
$

2.直接去配置：

1	`./configure` `--prefix=$HOME/develop/crosstool-ng/x-tools/libcgi` `--build=i686-pc-cygwin --target=arm-xscale-linux-gnueabi --host=arm-xscale-linux-gnueabi CC=arm-xscale-linux-gnueabi-gcc`

结果说是不支持这个CC：

CLi@PC-CLI-1 ~/develop/libcgi/libcgi-1.0
$ ./configure --prefix=$HOME/develop/crosstool-ng/x-tools/libcgi --build=i686-pc-cygwin --target=arm-xscale-linux-gnueabi --host=arm-xscale-linux-gnueabi CC=arm-xscale-linux-gnueabi-gcc
configure: warning: CC=arm-xscale-linux-gnueabi-gcc: invalid host type
creating cache ./config.cache
checking for gcc... gcc
checking whether the C compiler (gcc  ) works... yes
checking whether the C compiler (gcc  ) is a cross-compiler... no
checking whether we are using GNU C... yes
checking whether gcc accepts -g... yes
checking for a BSD compatible install... /usr/bin/install -c
checking how to run the C preprocessor... gcc -E
checking for ANSI C header files... yes
updating cache ./config.cache
creating ./config.status
creating Makefile
creating src/config.h
src/config.h is unchanged

3.所以，去掉CC：

1	`./configure` `--prefix=$HOME/develop/crosstool-ng/x-tools/libcgi` `--build=i686-pc-cygwin --target=arm-xscale-linux-gnueabi --host=arm-xscale-linux-gnueabi`

试试：

CLi@PC-CLI-1 ~/develop/libcgi/libcgi-1.0
$ ./configure --prefix=$HOME/develop/crosstool-ng/x-tools/libcgi --build=i686-pc-cygwin --target=arm-xscale-linux-gnueabi --host=arm-xscale-linux-gnueabi
loading cache ./config.cache
checking for gcc... (cached) gcc
checking whether the C compiler (gcc  ) works... yes
checking whether the C compiler (gcc  ) is a cross-compiler... no
checking whether we are using GNU C... (cached) yes
checking whether gcc accepts -g... (cached) yes
checking for a BSD compatible install... (cached) /usr/bin/install -c
checking how to run the C preprocessor... (cached) gcc -E
checking for ANSI C header files... (cached) yes
creating ./config.status
creating Makefile
creating src/config.h
src/config.h is unchanged

4.然后再去make编译：

CLi@PC-CLI-1 ~/develop/libcgi/libcgi-1.0
$ make
cc    -c -o src/error.o src/error.c
cc    -c -o src/cgi.o src/cgi.c
cc    -c -o src/session.o src/session.c
cc    -c -o src/base64.o src/base64.c
cc    -c -o src/md5.o src/md5.c
cc    -c -o src/string.o src/string.c
cc    -c -o src/general.o src/general.c
cc    -c -o src/list.o src/list.c
cc    -c -o src/cookie.o src/cookie.c
ar rc src/libcgi.a src/error.o src/cgi.o src/session.o src/base64.o src/md5.o  src/string.o src/general.o src/list.o src/cookie.o
cc -shared -o src/libcgi.so src/error.o src/cgi.o src/session.o src/base64.o src/md5.o  src/string.o src/general.o src/list.o src/cookie.o
 
 
 
+---------------------------------------+
|       Thanks for using LibCGI         |
+---------------------------------------+
| LibCGI is getting better because      |
| people like you are using it. So, if  |
| LibCGI is helping you in some way,    |
| please help us to improve it, sending |
| suggestions, bug reports, bug fixes,  |
| and specially improvment code.        |
| You can subscribe to the mailing list |
| or send a mail to the author.         |
+---------------------------------------+---------------------------+
| List: http://lists.sourceforge.net/lists/listinfo/libcgi-general  |
+-------------------------------------------------------------------+

和明显，不是交叉编译。

5.去看了下，.o，也的确只是x86的，不是arm的：

CLi@PC-CLI-1 ~/develop/libcgi/libcgi-1.0
$ file src/
base64.c     cgi.c        cgi.o        config.h.in  cookie.o     error.h      general.c    libcgi.a     list.c       md5.c        session.c    session.o    string.o
base64.o     cgi.h        config.h     cookie.c     error.c      error.o      general.o    libcgi.so    list.o       md5.o        session.h    string.c
 
CLi@PC-CLI-1 ~/develop/libcgi/libcgi-1.0
$ file src/cgi.o
src/cgi.o: 80386 COFF executable not stripped - version 30821

6.参考：

How to libcgi?

以及去看了：

libcgi-1.0\Makefile

中的：

1	`.c.o: $(CC) $(FLAGS) -c $<`

所以，去重新配置一下：

CLi@PC-CLI-1 ~/develop/libcgi/libcgi-1.0
$ ./configure --prefix=$HOME/develop/crosstool-ng/x-tools/libcgi --build=i686-pc-cygwin --target=arm-xscale-linux-gnueabi --host=arm-xscale-linux-gnueabi
loading cache ./config.cache
checking for gcc... (cached) gcc
checking whether the C compiler (gcc  ) works... yes
checking whether the C compiler (gcc  ) is a cross-compiler... no
checking whether we are using GNU C... (cached) yes
checking whether gcc accepts -g... (cached) yes
checking for a BSD compatible install... (cached) /usr/bin/install -c
checking how to run the C preprocessor... (cached) gcc -E
checking for ANSI C header files... (cached) yes
creating ./config.status
creating Makefile
creating src/config.h
src/config.h is unchanged

7.然后再在make的时候加上CC参数

1 2	`CLi@PC-CLI-1 ~/develop/libcgi/libcgi-1.0` `$` `make` `CC=arm-xscale-linux-gnueabi-gcc`

结果没东西需要重新编译的：

CLi@PC-CLI-1 ~/develop/libcgi/libcgi-1.0
$ make CC=arm-xscale-linux-gnueabi-gcc
 
 
 
+---------------------------------------+
|       Thanks for using LibCGI         |
+---------------------------------------+
| LibCGI is getting better because      |
| people like you are using it. So, if  |
| LibCGI is helping you in some way,    |
| please help us to improve it, sending |
| suggestions, bug reports, bug fixes,  |
| and specially improvment code.        |
| You can subscribe to the mailing list |
| or send a mail to the author.         |
+---------------------------------------+---------------------------+
| List: http://lists.sourceforge.net/lists/listinfo/libcgi-general  |
+-------------------------------------------------------------------+

8.所以去clean一把：

CLi@PC-CLI-1 ~/develop/libcgi/libcgi-1.0
$ make clean
find src/ -name *.*o -exec rm -f {} \;
find src/ -name *.a -exec rm -f {} \;

再重新配置：

CLi@PC-CLI-1 ~/develop/libcgi/libcgi-1.0
$ ./configure --prefix=$HOME/develop/crosstool-ng/x-tools/libcgi --build=i686-pc-cygwin --target=arm-xscale-linux-gnueabi --host=arm-xscale-linux-gnueabi
loading cache ./config.cache
checking for gcc... (cached) gcc
checking whether the C compiler (gcc  ) works... yes
checking whether the C compiler (gcc  ) is a cross-compiler... no
checking whether we are using GNU C... (cached) yes
checking whether gcc accepts -g... (cached) yes
checking for a BSD compatible install... (cached) /usr/bin/install -c
checking how to run the C preprocessor... (cached) gcc -E
checking for ANSI C header files... (cached) yes
creating ./config.status
creating Makefile
creating src/config.h
src/config.h is unchanged

make加CC，然后可以交叉编译了：

CLi@PC-CLI-1 ~/develop/libcgi/libcgi-1.0
$ make CC=arm-xscale-linux-gnueabi-gcc
arm-xscale-linux-gnueabi-gcc    -c -o src/error.o src/error.c
arm-xscale-linux-gnueabi-gcc    -c -o src/cgi.o src/cgi.c
arm-xscale-linux-gnueabi-gcc    -c -o src/session.o src/session.c
arm-xscale-linux-gnueabi-gcc    -c -o src/base64.o src/base64.c
arm-xscale-linux-gnueabi-gcc    -c -o src/md5.o src/md5.c

9.但是结果出错问题了：

【已解决】cygwin下用arm-xscale-linux-gnueabi交叉编译libcgi出错：src/string.c:587:2: error: incompatible type for argument 2 of ‘__builtin_va_copy’

10.make是编译完了。

现在去试试安装：

CLi@PC-CLI-1 ~/develop/libcgi/libcgi-1.0
$ make install
cp src/libcgi.a /home/CLi/develop/crosstool-ng/x-tools/libcgi/lib
cp src/libcgi.so /home/CLi/develop/crosstool-ng/x-tools/libcgi/lib
cp src/cgi.h /home/CLi/develop/crosstool-ng/x-tools/libcgi/include
cp src/session.h /home/CLi/develop/crosstool-ng/x-tools/libcgi/include

11.本以为OK了，但是突然坑爹的发现，安装目录中lib和include，都是文件，而不是文件夹：

CLi@PC-CLI-1 ~/develop/libcgi/libcgi-1.0
$ ll /home/CLi/develop/crosstool-ng/x-tools/libcgi
total 48K
-rwxr-xr-x 1 CLi Domänen-Benutzer 1.1K Aug  6 12:59 include*
-rw-r--r-- 1 CLi Domänen-Benutzer  44K Aug  6 12:59 lib

所以，删除掉此两个文件，新建两个文件夹，手动重新拷贝试试：

CLi@PC-CLI-1 ~/develop/libcgi/libcgi-1.0
$ rm /home/CLi/develop/crosstool-ng/x-tools/libcgi/*
 
CLi@PC-CLI-1 ~/develop/libcgi/libcgi-1.0
$ ll /home/CLi/develop/crosstool-ng/x-tools/libcgi
total 0
 
CLi@PC-CLI-1 ~/develop/libcgi/libcgi-1.0
$ mkdir /home/CLi/develop/crosstool-ng/x-tools/libcgi/lib
 
CLi@PC-CLI-1 ~/develop/libcgi/libcgi-1.0
$ mkdir /home/CLi/develop/crosstool-ng/x-tools/libcgi/include
 
CLi@PC-CLI-1 ~/develop/libcgi/libcgi-1.0
$ cp src/libcgi.a /home/CLi/develop/crosstool-ng/x-tools/libcgi/lib/
 
CLi@PC-CLI-1 ~/develop/libcgi/libcgi-1.0
$ cp src/libcgi.so /home/CLi/develop/crosstool-ng/x-tools/libcgi/lib/
 
CLi@PC-CLI-1 ~/develop/libcgi/libcgi-1.0
$ cp src/cgi.h /home/CLi/develop/crosstool-ng/x-tools/libcgi/include/
 
CLi@PC-CLI-1 ~/develop/libcgi/libcgi-1.0
$ cp src/session.h /home/CLi/develop/crosstool-ng/x-tools/libcgi/include/
 
CLi@PC-CLI-1 ~/develop/libcgi/libcgi-1.0
$ ll /home/CLi/develop/crosstool-ng/x-tools/libcgi
total 0
drwxr-xr-x+ 1 CLi Domänen-Benutzer 0 Aug  6 13:04 include/
drwxr-xr-x+ 1 CLi Domänen-Benutzer 0 Aug  6 13:03 lib/
 
CLi@PC-CLI-1 ~/develop/libcgi/libcgi-1.0
$ ll /home/CLi/develop/crosstool-ng/x-tools/libcgi/include/
total 12K
-rwxr-xr-x 1 CLi Domänen-Benutzer 4.3K Aug  6 13:04 cgi.h*
-rwxr-xr-x 1 CLi Domänen-Benutzer 1.1K Aug  6 13:04 session.h*
 
CLi@PC-CLI-1 ~/develop/libcgi/libcgi-1.0
$ ll /home/CLi/develop/crosstool-ng/x-tools/libcgi/lib
total 88K
-rw-r--r-- 1 CLi Domänen-Benutzer 43K Aug  6 13:03 libcgi.a
-rwxr-xr-x 1 CLi Domänen-Benutzer 44K Aug  6 13:03 libcgi.so*

如此，才算成功：

有了对应的.a和.so的库，有了对应的.h文件。

很明显是makefile写错了。

12.去折腾了下，测试结果是，makefile，应该从原先的：

install:
    cp src/libcgi.a $(LIBDIR)
    cp src/libcgi.so $(LIBDIR)
    cp src/cgi.h $(INCDIR)
    cp src/session.h $(INCDIR)

改为：

install:
    mkdir -p $(LIBDIR)
    cp src/libcgi.a $(LIBDIR)
    cp src/libcgi.so $(LIBDIR)
    mkdir -p $(INCDIR)
    cp src/cgi.h $(INCDIR)
    cp src/session.h $(INCDIR)

就可以了。

其中：

（1）对应的uninstall部分，没去管；

（2）由于makefile文件，也是configure生成的，所以，最终的修改，应该是修改configure文件。此处不熟悉，暂不去深究了。

效果是：

CLi@PC-CLI-1 ~/develop/libcgi/libcgi-1.0
$ rm /home/CLi/develop/crosstool-ng/x-tools/libcgi/* -fr
 
CLi@PC-CLI-1 ~/develop/libcgi/libcgi-1.0
$ ll /home/CLi/develop/crosstool-ng/x-tools/libcgi
total 0
 
CLi@PC-CLI-1 ~/develop/libcgi/libcgi-1.0
$ ll /home/CLi/develop/crosstool-ng/x-tools/libcgi^C
 
CLi@PC-CLI-1 ~/develop/libcgi/libcgi-1.0
$ make install
mkdir -p /home/CLi/develop/crosstool-ng/x-tools/libcgi/lib
cp src/libcgi.a /home/CLi/develop/crosstool-ng/x-tools/libcgi/lib
cp src/libcgi.so /home/CLi/develop/crosstool-ng/x-tools/libcgi/lib
mkdir -p /home/CLi/develop/crosstool-ng/x-tools/libcgi/include
cp src/cgi.h /home/CLi/develop/crosstool-ng/x-tools/libcgi/include
cp src/session.h /home/CLi/develop/crosstool-ng/x-tools/libcgi/include
 
CLi@PC-CLI-1 ~/develop/libcgi/libcgi-1.0
$ ll /home/CLi/develop/crosstool-ng/x-tools/libcgi
total 0
drwxr-xr-x+ 1 CLi Domänen-Benutzer 0 Aug  6 13:10 include/
drwxr-xr-x+ 1 CLi Domänen-Benutzer 0 Aug  6 13:10 lib/
 
CLi@PC-CLI-1 ~/develop/libcgi/libcgi-1.0
$ ll /home/CLi/develop/crosstool-ng/x-tools/libcgi/lib/
total 88K
-rw-r--r-- 1 CLi Domänen-Benutzer 43K Aug  6 13:10 libcgi.a
-rwxr-xr-x 1 CLi Domänen-Benutzer 44K Aug  6 13:10 libcgi.so*
 
CLi@PC-CLI-1 ~/develop/libcgi/libcgi-1.0
$ ll /home/CLi/develop/crosstool-ng/x-tools/libcgi/include/
total 12K
-rwxr-xr-x 1 CLi Domänen-Benutzer 4.3K Aug  6 13:10 cgi.h*
-rwxr-xr-x 1 CLi Domänen-Benutzer 1.1K Aug  6 13:10 session.h*

【总结】

此处的过程是：

1.配置：

1	`./configure` `--prefix=$HOME/develop/crosstool-ng/x-tools/libcgi` `--build=i686-pc-cygwin --target=arm-xscale-linux-gnueabi --host=arm-xscale-linux-gnueabi`

注：此处指定CC的话，无法识别，所以CC的指定，放在make后面了。

2.编译：

准备工作：

（1）修改：

libcgi-1.0\src\string.c

中的587行的：

1	`va_copy(bkp, str);`

改为：

1 2	`//va_copy(bkp, str);` `va_copy(bkp, ptr);`

编译：

再去指定CC，去make编译：

1	`make` `CC=arm-xscale-linux-gnueabi-gcc`

3.安装：

准备工作：

将makefile中的：

install:
    cp src/libcgi.a $(LIBDIR)
    cp src/libcgi.so $(LIBDIR)
    cp src/cgi.h $(INCDIR)
    cp src/session.h $(INCDIR)

改为：

install:
    mkdir -p $(LIBDIR)
    cp src/libcgi.a $(LIBDIR)
    cp src/libcgi.so $(LIBDIR)
    mkdir -p $(INCDIR)
    cp src/cgi.h $(INCDIR)
    cp src/session.h $(INCDIR)

就可以了。

安装：

1	`make` `install`

【后记】

去官网：

https://sourceforge.net/p/libcgi/bugs/?source=navbar

提交一下这个，生成的makefile的bug。

等待作者有空去修复此bug了。

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