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qemu移植开源软件

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boa

boa概述

image-20241015223050748

boa移植

1.解压源代码
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tar -xvf boa-0.94.13.tar.gz
2.生成Makefile
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cd ./boa-0.94.13/src 
./configure
3.编译源代码
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将Makefile中的下面内容：
CC = gcc
CPP = gcc –E
改为（即采用交叉编译工具）：
CC = arm-linux-gcc
CPP = arm-linux-gcc –E
4.修改源代码 修改src/compat.h

出现错误：

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compat.h:120:30: note: in definition of macro ‘TIMEZONE_OFFSET’
#define TIMEZONE_OFFSET(foo) foo##->tm_gmtoff
                                      ^
make: *** [util.o] Error 1

解决方案：

vim compat.h 
#define TIMEZONE_OFFSET(foo) (foo)->tm_gmtoff        //修改成这个
//#define TIMEZONE_OFFSET(foo) foo##->tm_gmtoff        //注释掉

vim boa.c  //注释掉下面部分
#if 0     
    if (setuid(0) != -1) {
        DIE("icky Linux kernel bug!");
    }
#endif
5.编译 make clean && make -j8生成boa文件

此时再次按照自己的需求修改安装目录，着重修改如下内容：

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Port  80  
User  0  
Group 0  
#Listen 192.68.0.5 
ErrorLog /boa/log/error_log  
AccessLog /boa/log/access_log    
DocumentRoot /boa/www  
UserDir public_html  
DirectoryIndex index.html    
DirectoryMaker /boa/boa_indexer
KeepAliveMax 1000  
KeepAliveTimeout 10  
MimeTypes /boa/mime.types 
DefaultType text/plain    
CGIPath /bin:/usr/bin:/usr/local/bin   
Alias /doc /usr/doc   
ScriptAlias /cgi-bin/ /boa/cgi-bin/

我的目录在/etc/boa，boa.conf配置文件如下：

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# Boa v0.94 configuration file
# File format has not changed from 0.93
# File format has changed little from 0.92
# version changes are noted in the comments
#
# The Boa configuration file is parsed with a lex/yacc or flex/bison
# generated parser.  If it reports an error, the line number will be
# provided; it should be easy to spot.  The syntax of each of these
# rules is very simple, and they can occur in any order.  Where possible
# these directives mimic those of NCSA httpd 1.3; I saw no reason to
# introduce gratuitous differences.

# $Id: boa.conf,v 1.25 2002/03/22 04:33:09 jnelson Exp $

# The "ServerRoot" is not in this configuration file.  It can be compiled
# into the server (see defines.h) or specified on the command line with
# the -c option, for example:
#
# boa -c /usr/local/boa


# Port: The port Boa runs on.  The default port for http servers is 80.
# If it is less than 1024, the server must be started as root.

Port 80

# Listen: the Internet address to bind(2) to.  If you leave it out,
# it takes the behavior before 0.93.17.2, which is to bind to all
# addresses (INADDR_ANY).  You only get one "Listen" directive,
# if you want service on multiple IP addresses, you have three choices:
#    1. Run boa without a "Listen" directive
#       a. All addresses are treated the same; makes sense if the addresses
#          are localhost, ppp, and eth0.
#       b. Use the VirtualHost directive below to point requests to different
#          files.  Should be good for a very large number of addresses (web
#          hosting clients).
#    2. Run one copy of boa per IP address, each has its own configuration
#       with a "Listen" directive.  No big deal up to a few tens of addresses.
#       Nice separation between clients.
# The name you provide gets run through inet_aton(3), so you have to use dotted
# quad notation.  This configuration is too important to trust some DNS.

#Listen 192.68.0.5

#  User: The name or UID the server should run as.
# Group: The group name or GID the server should run as.

User 0
Group 0

# ServerAdmin: The email address where server problems should be sent.
# Note: this is not currently used, except as an environment variable
# for CGIs.

#ServerAdmin root@localhost

# ErrorLog: The location of the error log file. If this does not start
# with /, it is considered relative to the server root.
# Set to /dev/null if you don't want errors logged.
# If unset, defaults to /dev/stderr

ErrorLog /etc/boa/log/error_log
# Please NOTE: Sending the logs to a pipe ('|'), as shown below,
#  is somewhat experimental and might fail under heavy load.
# "Usual libc implementations of printf will stall the whole
#  process if the receiving end of a pipe stops reading."
#ErrorLog "|/usr/sbin/cronolog --symlink=/var/log/boa/error_log /var/log/boa/error-%Y%m%d.log"

# AccessLog: The location of the access log file. If this does not
# start with /, it is considered relative to the server root.
# Comment out or set to /dev/null (less effective) to disable
# Access logging.

AccessLog /etc/boa/log/access_log
# Please NOTE: Sending the logs to a pipe ('|'), as shown below,
#  is somewhat experimental and might fail under heavy load.
# "Usual libc implementations of printf will stall the whole
#  process if the receiving end of a pipe stops reading."
#AccessLog  "|/usr/sbin/cronolog --symlink=/var/log/boa/access_log /var/log/boa/access-%Y%m%d.log"

# UseLocaltime: Logical switch.  Uncomment to use localtime
# instead of UTC time
#UseLocaltime

# VerboseCGILogs: this is just a logical switch.
#  It simply notes the start and stop times of cgis in the error log
# Comment out to disable.

#VerboseCGILogs

# ServerName: the name of this server that should be sent back to
# clients if different than that returned by gethostname + gethostbyname

#ServerName www.your.org.here

# VirtualHost: a logical switch.
# Comment out to disable.
# Given DocumentRoot /var/www, requests on interface 'A' or IP 'IP-A'
# become /var/www/IP-A.
# Example: http://localhost/ becomes /var/www/127.0.0.1
#
# Not used until version 0.93.17.2.  This "feature" also breaks commonlog
# output rules, it prepends the interface number to each access_log line.
# You are expected to fix that problem with a postprocessing script.

#VirtualHost

# DocumentRoot: The root directory of the HTML documents.
# Comment out to disable server non user files.

DocumentRoot /etc/boa/www

# UserDir: The name of the directory which is appended onto a user's home
# directory if a ~user request is recieved.

UserDir public_html

# DirectoryIndex: Name of the file to use as a pre-written HTML
# directory index.  Please MAKE AND USE THESE FILES.  On the
# fly creation of directory indexes can be _slow_.
# Comment out to always use DirectoryMaker

DirectoryIndex index.html

# DirectoryMaker: Name of program used to create a directory listing.
# Comment out to disable directory listings.  If both this and
# DirectoryIndex are commented out, accessing a directory will give
# an error (though accessing files in the directory are still ok).

DirectoryMaker /etc/boa/boa_indexer

# DirectoryCache: If DirectoryIndex doesn't exist, and DirectoryMaker
# has been commented out, the the on-the-fly indexing of Boa can be used
# to generate indexes of directories. Be warned that the output is
# extremely minimal and can cause delays when slow disks are used.
# Note: The DirectoryCache must be writable by the same user/group that
# Boa runs as.

# DirectoryCache /var/spool/boa/dircache

# KeepAliveMax: Number of KeepAlive requests to allow per connection
# Comment out, or set to 0 to disable keepalive processing

KeepAliveMax 1000

# KeepAliveTimeout: seconds to wait before keepalive connection times out

KeepAliveTimeout 10

# MimeTypes: This is the file that is used to generate mime type pairs
# and Content-Type fields for boa.
# Set to /dev/null if you do not want to load a mime types file.
# Do *not* comment out (better use AddType!)

MimeTypes /etc/boa/mime.types


# DefaultType: MIME type used if the file extension is unknown, or there
# is no file extension.

DefaultType text/plain

# CGIPath: The value of the $PATH environment variable given to CGI progs.

CGIPath /bin:/usr/bin:/usr/local/bin

# SinglePostLimit: The maximum allowable number of bytes in
# a single POST.  Default is normally 1MB.

# AddType: adds types without editing mime.types
# Example: AddType type extension [extension ...]

# Uncomment the next line if you want .cgi files to execute from anywhere
#AddType application/x-httpd-cgi cgi

# Redirect, Alias, and ScriptAlias all have the same semantics -- they
# match the beginning of a request and take appropriate action.  Use
# Redirect for other servers, Alias for the same server, and ScriptAlias
# to enable directories for script execution.

# Redirect allows you to tell clients about documents which used to exist in
# your server's namespace, but do not anymore. This allows you to tell the
# clients where to look for the relocated document.
# Example: Redirect /bar http://elsewhere/feh/bar

# Aliases: Aliases one path to another.
# Example: Alias /path1/bar /path2/foo

Alias /doc /usr/doc

# ScriptAlias: Maps a virtual path to a directory for serving scripts
# Example: ScriptAlias /htbin/ /www/htbin/

ScriptAlias /cgi-bin/ /etc/boa/cgi-bin/

6.新建index.html和test.c

index.html:

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<html>
    <body>
        <h3>this is a test! 2024-10-15 jym</h3><br/>
        <img src="oei.jpg"/>
        <h3>tree picture</h3><br/>
        <a href="/cgi-bin/test.cgi">to cgi page</a>    //指定了cgi可执行文件存放的路径，默认从/boa的根目录开始查找
    </body>
</html> j

test.c:

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#include <stdio.h>
int main()
{
    printf("Content-type:text/html\n\n"); //这句一定要加上
    printf("<html><body>");
    printf("<font style=\"color:red; font-size:30px;\">Hello, CGI!</font><br/>");
    printf("<a href=\"/index.html\">return index.html</a>");
    printf("</body></html>");
    return 0;
}

gcc -o test.cgi test.c 生成测试所用的test.cgi

7.拷贝相关文件
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cp boa boa_indexer test.cgi index.html ../boa.conf ../../arm64_boa
cd ../../arm64_boa
mkdir www cgi-bin log
sudo cp /etc/mime.types ./
mv index.html www
mv test.cgi cgi-bin
cp ~/pics/oei.jpg ./www

image-20241017093215392

8.ARM移植

PC:

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cp ./arm64_boa ../rootfs #rootfs是我所设置的nfs挂载目录

虚拟ARM:

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mount -t nfs -o proto=tcp,nolock 10.0.0.1:/home/jym/code/linux/qemu/rootfs /mnt

将对应文件从/mnt文件夹中拷贝到对应目录 可执行文件放在/usr/sbin boa对应文件放在/etc/boa

第一遍运行出现如下问题：

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[root@FriendlyARM /]# ./boa
gethostbyname:: Success

解决办法：

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vim boa.conf #添加如下内容即可
ServerName www.mydomain.com
9.运行测试

image-20241017092231141

注意这里我们的虚拟开发板是10.0.0.2，在移植过程中，我先在x86平台上移植了boa，本地地址为127.0.0.1或者10.0.0.1都是如下所示画面，但是10.0.0.2却是原来的bo官方界面，后续移植的时候，我将虚拟平台上的boa重命名为boa_old，其中/etc/boa和/usr/sbin中都存在，然后将我生成的文件拷贝到/etc/boa中关掉之前的boa服务再次运行即可

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ps | grep boa
kill 进程号

image-20241017092608730

image-20241017092209961

GoAhead

后续移植

GoAhead概述

GoAhead移植

madplay

madplay概述

Madplay是一个开源mp3解码库，对mp3解码算法做了很多优化

单纯想要播放音乐，在linux下播放MP3文件，我们可以使用sox，运行下面语句即可

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sudo apt-get install sox libsox-fmt-all
play shanghaitan.mp3

madplay-PC-Linux

1.解压源码包

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cd /arm
mkdir madplay
cd madplay
mkdir tarball src-x86 src-arm target-x86 target-arm

cd tarball
for f in $(ls *.tar.gz); do tar -zxvf $f –C ../src-x86; done
或者：
cd tarball
tar -zxvf zlib-1.2.3.tar.gz -C ../src-x86
tar -zxvf libid3tag-0.15.1b.tar.gz -C ../src-x86
tar -zxvf libmad-0.15.1b.tar.gz -C ../src-x86
tar -zxvf madplay-0.15.2b.tar.gz -C ../src-x86

目录说明：
tarball 目录用来存放所有的源代码包
src-x86 目录用来存放 X86 版本的所有源代码文件
src-arm 目录用来存放 ARM 版本的所有源代码文件
target-x86 目录是 X86 版本的安装目录
target-arm 目录是 ARM 版本的安装目录
接下来把从网上下载到的源代码包放入 tarball 目录

2.编译madplay及它所依赖的库文件

zlib
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cd ../src-x86/zlib-1.2.3
./configure --prefix=/home/jym/code/linux/qemu/madplay/target-x86
make -j8
make install
libid3tag
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cd ../libid3tag-0.15.1b
./configure --prefix=/home/jym/code/linux/qemu/madplay/target-x86/  --disable-debugging --disable-shared --enable-static CPPFLAGS=-I/home/jym/code/linux/qemu/madplay/target-x86/include LDFLAGS=-L/home/jym/code/linux/qemu/madplay/target-x86/lib
make -j8
make install

其中，–disable-shared –enable-static 是指定为静态编译，不过这样并不能够进行静态编译.

libmad
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cd ../libmad-0.15.1b
./configure --prefix=/home/jym/code/linux/qemu/madplay/target-x86 --disable-debugging --disable-shared --enable-static CPPFLAGS=-I/home/jym/code/linux/qemu/madplay/target-x86/include LDFLAGS=-L/home/jym/code/linux/qemu/madplay/target-x86/lib

如果此时 make，make install 就会报错，说是”-fforce-mem”参数不能识别。打开当前目录下的 Makefile 文件，去掉里面出现的”-fforce-mem”，再进行后续操作

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make -j8
make install
madplay
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cd ../madplay-0.15.2b
./configure --prefix=/home/jym/code/linux/qemu/madplay/target-x86 --disable-debugging --disable-shared --enable-static CPPFLAGS=-I/home/jym/code/linux/qemu/madplay/target-x86/include LDFLAGS=-L/home/jym/code/linux/qemu/madplay/target-x86/lib
make -j8
make install

但是，这样得到的是动态链接。如果在 madplay-0.15.2b 目录中执行gcc 命令，并且在最后加上-static，运行以后就可以得到静态链接的程序

静态链接
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gcc -Wall -O2 -fomit-frame-pointer -o madplay madplay.o getopt.o getopt1.o version.o resample.o filter.o tag.o crc.o rgain.o player.o audio.o audio_aiff.o audio_cdda.o audio_hex.o audio_null.o audio_raw.o audio_snd.o audio_wave.o audio_oss.o -L/home/jym/code/linux/qemu/madplay/target-x86/lib /home/jym/code/linux/qemu/madplay/target-x86/lib/libmad.a /home/jym/code/linux/qemu/madplay/target-x86/lib/libid3tag.a -lz -lm -static
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ls /home/jym/code/linux/qemu/madplay/target-x86/bin/
abxtest  madplay

使用file查看madplay文件

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jym@jym-virtual-machine:~/code/linux/qemu/madplay/target-x86/bin$ file madplay
madplay: ELF 64-bit LSB shared object, x86-64, version 1 (SYSV), dynamically linked, interpreter /lib64/ld-linux-x86-64.so.2, BuildID[sha1]=16f52c3b88a3bce95f5274f8d6b43d15b03fca25, for GNU/Linux 3.2.0, not stripped

jym@jym-virtual-machine:~/code/linux/qemu/madplay/src-x86/madplay-0.15.2b$ file madplay
madplay: ELF 64-bit LSB executable, x86-64, version 1 (GNU/Linux), statically linked, BuildID[sha1]=e5deaf02bfed1309a9f82f53f4c89edcd0e45070, for GNU/Linux 3.2.0, not stripped

image-20241016232303443

3.运行测试

移植完成后还有一个问题需要处理，直接运行会报错如下：

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jym@jym-virtual-machine:~/code/linux/qemu/madplay/target-x86/bin$ ./madplay shanghaitan.mp3
MPEG Audio Decoder 0.15.2 (beta) - Copyright (C) 2000-2004 Robert Leslie et al.
audio: /dev/dsp: 没有那个文件或目录

原因是madplay使用oss建构，在网上查找了一些资料，可以用alsa支持oss架构，后续我再探索,root 账号下不能用audio，切记！

简单解决方法如下：使用madplay解码再使用aplay播放

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./madplay -o wav:- shanghaitan.mp3 | aplay

最终效果如图所示

image-20241016233558824

4.构建脚本文件

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#!/bin/sh
# This build script is for madplay under PC-Linux
MADPLAY_DIR=/home/jym/code/linux/qemu/madplay
TARBALL_DIR=$MADPLAY_DIR/tarball
SRC_DIR=$MADPLAY_DIR/src-x86
TARGET_DIR=$MADPLAY_DIR/target-x86

tar -zxvf $TARBALL_DIR/zlib-1.2.3.tar.gz -C $SRC_DIR
tar -zxvf $TARBALL_DIR/libid3tag-0.15.1b.tar.gz -C $SRC_DIR
tar -zxvf $TARBALL_DIR/libmad-0.15.1b.tar.gz -C $SRC_DIR
tar -zxvf $TARBALL_DIR/madplay-0.15.2b.tar.gz -C $SRC_DIR
# for f in $(ls $TARBALL_DIR/*.tar.gz); do tar -zxvf $f -C $SRC_DIR; done
cd $SRC_DIR/zlib-1.2.3
./configure --prefix=$TARGET_DIR
make
make install

cd $SRC_DIR/libid3tag-0.15.1b
./configure --prefix=$TARGET_DIR --disable-debugging --disable-shared --enable-static CPPFLAGS=-I$TARGET_DIR/include LDFLAGS=-L$TARGET_DIR/lib
make
make install

cd $SRC_DIR/libmad-0.15.1b
./configure --prefix=$TARGET_DIR --disable-debugging --disable-shared --enable-static CPPFLAGS=-I$TARGET_DIR/include LDFLAGS=-L$TARGET_DIR/lib

sed 's/-fforce-mem //g' Makefile > Makefile.bak
mv Makefile.bak Makefile

make
make install

cd $SRC_DIR/madplay-0.15.2b
./configure --prefix=$TARGET_DIR --disable-debugging --disable-shared --enable-static CPPFLAGS=-I$TARGET_DIR/include LDFLAGS=-L$TARGET_DIR/lib
make
make install

gcc -Wall -O2 -fomit-frame-pointer -o madplay-s madplay.o getopt.o getopt1.o version.o resample.o filter.o tag.o crc.o rgain.o player.o audio.o audio_aiff.o audio_cdda.o audio_hex.o audio_null.o audio_raw.o audio_snd.o audio_wave.o audio_oss.o -L$TARGET_DIR/lib $TARGET_DIR/lib/libmad.a $TARGET_DIR/lib/libid3tag.a -lz -lm -static

mv madplay madplay-d
mv $TARGET_DIR/bin/madplay $TARGET_DIR/bin/madplay-d
cp -a madplay-s $TARGET_DIR/bin

madplay-ARM-Linux

1.构建脚本

移植ARM-Linux版本和上述PC端流程类似，使用交叉编译器即可，这里给出编译脚本，一键运行即可

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#!/bin/sh
# This build script is for madplay under ARM-Linux
MADPLAY_DIR=/home/jym/code/linux/qemu/madplay
TARBALL_DIR=$MADPLAY_DIR/tarball
SRC_DIR=$MADPLAY_DIR/src-arm
TARGET_DIR=$MADPLAY_DIR/target-arm
tar -zxvf $TARBALL_DIR/zlib-1.2.3.tar.gz -C $SRC_DIR
tar -zxvf $TARBALL_DIR/libid3tag-0.15.1b.tar.gz -C $SRC_DIR
tar -zxvf $TARBALL_DIR/libmad-0.15.1b.tar.gz -C $SRC_DIR
tar -zxvf $TARBALL_DIR/madplay-0.15.2b.tar.gz -C $SRC_DIR
# for f in $(ls $TARBALL_DIR/*.tar.gz); do tar -zxvf $f -C $SRC_DIR; done

export CC=arm-linux-gcc
cd $SRC_DIR/zlib-1.2.3
./configure --prefix=$TARGET_DIR
make -j8
make install

cd $SRC_DIR/libid3tag-0.15.1b
./configure --host=arm-linux --prefix=$TARGET_DIR --disable-debugging --disable-shared --enable-static CPPFLAGS=-I$TARGET_DIR/include LDFLAGS=-L$TARGET_DIR/lib
make -j8
make install

cd $SRC_DIR/libmad-0.15.1b
./configure --host=arm-linux --prefix=$TARGET_DIR --disable-debugging --disable-shared --enable-static CPPFLAGS=-I$TARGET_DIR/include LDFLAGS=-L$TARGET_DIR/lib

sed 's/-fforce-mem //g' Makefile > Makefile.bak
mv Makefile.bak Makefile

make -j8
make install

cd $SRC_DIR/madplay-0.15.2b
./configure --host=arm-linux --prefix=$TARGET_DIR --disable-debugging --disable-shared --enable-static CPPFLAGS=-I$TARGET_DIR/include LDFLAGS=-L$TARGET_DIR/lib
make -j8
make install

arm-linux-gcc -Wall -O2 -fomit-frame-pointer -o madplay-s madplay.o getopt.o getopt1.o version.o resample.o filter.o tag.o crc.o rgain.o player.o audio.o audio_aiff.o audio_cdda.o audio_hex.o audio_null.o audio_raw.o audio_snd.o audio_wave.o audio_oss.o -L$TARGET_DIR/lib $TARGET_DIR/lib/libmad.a $TARGET_DIR/lib/libid3tag.a -lz -lm -static

mv madplay madplay-d
mv $TARGET_DIR/bin/madplay $TARGET_DIR/bin/madplay-d
cp -a madplay-s $TARGET_DIR/bin

这里经过验证，是可以不报错运行完毕的，生成的相关文件信息如下：

image-20241017090810624!image-20241017090719513

2.运行验证

启动虚拟arm平台

image-20241017091028207

音乐成功响起

image-20241017091252686

生成的相关信息如下

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MPEG Audio Decoder 0.15.2 (beta) - Copyright (C) 2000-2004 Robert Leslie et al.
          Title: ▒Ϻ▒̲
         Artist: Ҷ▒▒▒▒
           Year: 2000
          Genre: Goa
<3>__free_from_pool: freeing wrong coherent size from pool
__free_from_pool: freeing wrong coherent size from pool
[<800151e8>] (unwind_backtrace+0x0/0xf0) from [<800189c4>] (arm_dma_free+0x188/0x1b0)
[<800151e8>] (unwind_backtrace+0x0/0xf0) from [<800189c4>] (arm_dma_free+0x188/0x1b0)
[<800189c4>] (arm_dma_free+0x188/0x1b0) from [<8027dfa4>] (snd_dma_free_pages+0xb4/0xc8)
[<800189c4>] (arm_dma_free+0x188/0x1b0) from [<8027dfa4>] (snd_dma_free_pages+0xb4/0xc8)
[<8027dfa4>] (snd_dma_free_pages+0xb4/0xc8) from [<8027d4ac>] (snd_pcm_lib_free_pages+0x2c/0x54)
[<8027dfa4>] (snd_dma_free_pages+0xb4/0xc8) from [<8027d4ac>] (snd_pcm_lib_free_pages+0x2c/0x54)
[<8027d4ac>] (snd_pcm_lib_free_pages+0x2c/0x54) from [<80292144>] (aaci_pcm_hw_free+0x40/0x5c)
[<8027d4ac>] (snd_pcm_lib_free_pages+0x2c/0x54) from [<80292144>] (aaci_pcm_hw_free+0x40/0x5c)
[<80292144>] (aaci_pcm_hw_free+0x40/0x5c) from [<80292180>] (aaci_pcm_hw_params+0x20/0xd4)
[<80292144>] (aaci_pcm_hw_free+0x40/0x5c) from [<80292180>] (aaci_pcm_hw_params+0x20/0xd4)
[<80292180>] (aaci_pcm_hw_params+0x20/0xd4) from [<80276ce4>] (snd_pcm_hw_params+0x114/0x3e0)
[<80292180>] (aaci_pcm_hw_params+0x20/0xd4) from [<80276ce4>] (snd_pcm_hw_params+0x114/0x3e0)
[<80276ce4>] (snd_pcm_hw_params+0x114/0x3e0) from [<80277984>] (snd_pcm_common_ioctl1+0x5a0/0x10a4)
[<80276ce4>] (snd_pcm_hw_params+0x114/0x3e0) from [<80277984>] (snd_pcm_common_ioctl1+0x5a0/0x10a4)
[<80277984>] (snd_pcm_common_ioctl1+0x5a0/0x10a4) from [<80278990>] (snd_pcm_playback_ioctl1+0x38/0x4c0)
[<80277984>] (snd_pcm_common_ioctl1+0x5a0/0x10a4) from [<80278990>] (snd_pcm_playback_ioctl1+0x38/0x4c0)
[<80278990>] (snd_pcm_playback_ioctl1+0x38/0x4c0) from [<80278e84>] (snd_pcm_kernel_ioctl+0x40/0x6c)
[<80278990>] (snd_pcm_playback_ioctl1+0x38/0x4c0) from [<80278e84>] (snd_pcm_kernel_ioctl+0x40/0x6c)
[<80278e84>] (snd_pcm_kernel_ioctl+0x40/0x6c) from [<80282730>] (snd_pcm_oss_change_params+0x818/0xcc0)
[<80278e84>] (snd_pcm_kernel_ioctl+0x40/0x6c) from [<80282730>] (snd_pcm_oss_change_params+0x818/0xcc0)
[<80282730>] (snd_pcm_oss_change_params+0x818/0xcc0) from [<80283214>] (snd_pcm_oss_get_active_substream+0x68/0x74)
[<80282730>] (snd_pcm_oss_change_params+0x818/0xcc0) from [<80283214>] (snd_pcm_oss_get_active_substream+0x68/0x74)
[<80283214>] (snd_pcm_oss_get_active_substream+0x68/0x74) from [<80283258>] (snd_pcm_oss_get_format+0x10/0x28)
[<80283214>] (snd_pcm_oss_get_active_substream+0x68/0x74) from [<80283258>] (snd_pcm_oss_get_format+0x10/0x28)
[<80283258>] (snd_pcm_oss_get_format+0x10/0x28) from [<80283ed8>] (snd_pcm_oss_ioctl+0x438/0xd2c)
[<80283258>] (snd_pcm_oss_get_format+0x10/0x28) from [<80283ed8>] (snd_pcm_oss_ioctl+0x438/0xd2c)
[<80283ed8>] (snd_pcm_oss_ioctl+0x438/0xd2c) from [<800c6c9c>] (do_vfs_ioctl+0x80/0x5b0)
[<80283ed8>] (snd_pcm_oss_ioctl+0x438/0xd2c) from [<800c6c9c>] (do_vfs_ioctl+0x80/0x5b0)
[<800c6c9c>] (do_vfs_ioctl+0x80/0x5b0) from [<800c7204>] (sys_ioctl+0x38/0x60)
[<800c6c9c>] (do_vfs_ioctl+0x80/0x5b0) from [<800c7204>] (sys_ioctl+0x38/0x60)
[<800c7204>] (sys_ioctl+0x38/0x60) from [<8000e2c0>] (ret_fast_syscall+0x0/0x30)
[<800c7204>] (sys_ioctl+0x38/0x60) from [<8000e2c0>] (ret_fast_syscall+0x0/0x30)
<3>__free_from_pool: freeing wrong coherent size from pool
__free_from_pool: freeing wrong coherent size from pool
[<800151e8>] (unwind_backtrace+0x0/0xf0) from [<800189c4>] (arm_dma_free+0x188/0x1b0)
[<800151e8>] (unwind_backtrace+0x0/0xf0) from [<800189c4>] (arm_dma_free+0x188/0x1b0)
[<800189c4>] (arm_dma_free+0x188/0x1b0) from [<8027dfa4>] (snd_dma_free_pages+0xb4/0xc8)
[<800189c4>] (arm_dma_free+0x188/0x1b0) from [<8027dfa4>] (snd_dma_free_pages+0xb4/0xc8)
[<8027dfa4>] (snd_dma_free_pages+0xb4/0xc8) from [<8027d4ac>] (snd_pcm_lib_free_pages+0x2c/0x54)
[<8027dfa4>] (snd_dma_free_pages+0xb4/0xc8) from [<8027d4ac>] (snd_pcm_lib_free_pages+0x2c/0x54)
[<8027d4ac>] (snd_pcm_lib_free_pages+0x2c/0x54) from [<80292144>] (aaci_pcm_hw_free+0x40/0x5c)
[<8027d4ac>] (snd_pcm_lib_free_pages+0x2c/0x54) from [<80292144>] (aaci_pcm_hw_free+0x40/0x5c)
[<80292144>] (aaci_pcm_hw_free+0x40/0x5c) from [<80292180>] (aaci_pcm_hw_params+0x20/0xd4)
[<80292144>] (aaci_pcm_hw_free+0x40/0x5c) from [<80292180>] (aaci_pcm_hw_params+0x20/0xd4)
[<80292180>] (aaci_pcm_hw_params+0x20/0xd4) from [<80276ce4>] (snd_pcm_hw_params+0x114/0x3e0)
[<80292180>] (aaci_pcm_hw_params+0x20/0xd4) from [<80276ce4>] (snd_pcm_hw_params+0x114/0x3e0)
[<80276ce4>] (snd_pcm_hw_params+0x114/0x3e0) from [<80277984>] (snd_pcm_common_ioctl1+0x5a0/0x10a4)
[<80276ce4>] (snd_pcm_hw_params+0x114/0x3e0) from [<80277984>] (snd_pcm_common_ioctl1+0x5a0/0x10a4)
[<80277984>] (snd_pcm_common_ioctl1+0x5a0/0x10a4) from [<80278990>] (snd_pcm_playback_ioctl1+0x38/0x4c0)
[<80277984>] (snd_pcm_common_ioctl1+0x5a0/0x10a4) from [<80278990>] (snd_pcm_playback_ioctl1+0x38/0x4c0)
[<80278990>] (snd_pcm_playback_ioctl1+0x38/0x4c0) from [<80278e84>] (snd_pcm_kernel_ioctl+0x40/0x6c)
[<80278990>] (snd_pcm_playback_ioctl1+0x38/0x4c0) from [<80278e84>] (snd_pcm_kernel_ioctl+0x40/0x6c)
[<80278e84>] (snd_pcm_kernel_ioctl+0x40/0x6c) from [<80282730>] (snd_pcm_oss_change_params+0x818/0xcc0)
[<80278e84>] (snd_pcm_kernel_ioctl+0x40/0x6c) from [<80282730>] (snd_pcm_oss_change_params+0x818/0xcc0)
[<80282730>] (snd_pcm_oss_change_params+0x818/0xcc0) from [<80283214>] (snd_pcm_oss_get_active_substream+0x68/0x74)
[<80282730>] (snd_pcm_oss_change_params+0x818/0xcc0) from [<80283214>] (snd_pcm_oss_get_active_substream+0x68/0x74)
[<80283214>] (snd_pcm_oss_get_active_substream+0x68/0x74) from [<80283280>] (snd_pcm_oss_get_channels+0x10/0x28)
[<80283214>] (snd_pcm_oss_get_active_substream+0x68/0x74) from [<80283280>] (snd_pcm_oss_get_channels+0x10/0x28)
[<80283280>] (snd_pcm_oss_get_channels+0x10/0x28) from [<80283fb4>] (snd_pcm_oss_ioctl+0x514/0xd2c)
[<80283280>] (snd_pcm_oss_get_channels+0x10/0x28) from [<80283fb4>] (snd_pcm_oss_ioctl+0x514/0xd2c)
[<80283fb4>] (snd_pcm_oss_ioctl+0x514/0xd2c) from [<800c6c9c>] (do_vfs_ioctl+0x80/0x5b0)
[<80283fb4>] (snd_pcm_oss_ioctl+0x514/0xd2c) from [<800c6c9c>] (do_vfs_ioctl+0x80/0x5b0)
[<800c6c9c>] (do_vfs_ioctl+0x80/0x5b0) from [<800c7204>] (sys_ioctl+0x38/0x60)
[<800c6c9c>] (do_vfs_ioctl+0x80/0x5b0) from [<800c7204>] (sys_ioctl+0x38/0x60)
[<800c7204>] (sys_ioctl+0x38/0x60) from [<8000e2c0>] (ret_fast_syscall+0x0/0x30)
[<800c7204>] (sys_ioctl+0x38/0x60) from [<8000e2c0>] (ret_fast_syscall+0x0/0x30)
<3>__free_from_pool: freeing wrong coherent size from pool
__free_from_pool: freeing wrong coherent size from pool
[<800151e8>] (unwind_backtrace+0x0/0xf0) from [<800189c4>] (arm_dma_free+0x188/0x1b0)
[<800151e8>] (unwind_backtrace+0x0/0xf0) from [<800189c4>] (arm_dma_free+0x188/0x1b0)
[<800189c4>] (arm_dma_free+0x188/0x1b0) from [<8027dfa4>] (snd_dma_free_pages+0xb4/0xc8)
[<800189c4>] (arm_dma_free+0x188/0x1b0) from [<8027dfa4>] (snd_dma_free_pages+0xb4/0xc8)
[<8027dfa4>] (snd_dma_free_pages+0xb4/0xc8) from [<8027d4ac>] (snd_pcm_lib_free_pages+0x2c/0x54)
[<8027dfa4>] (snd_dma_free_pages+0xb4/0xc8) from [<8027d4ac>] (snd_pcm_lib_free_pages+0x2c/0x54)
[<8027d4ac>] (snd_pcm_lib_free_pages+0x2c/0x54) from [<80292144>] (aaci_pcm_hw_free+0x40/0x5c)
[<8027d4ac>] (snd_pcm_lib_free_pages+0x2c/0x54) from [<80292144>] (aaci_pcm_hw_free+0x40/0x5c)
[<80292144>] (aaci_pcm_hw_free+0x40/0x5c) from [<80292180>] (aaci_pcm_hw_params+0x20/0xd4)
[<80292144>] (aaci_pcm_hw_free+0x40/0x5c) from [<80292180>] (aaci_pcm_hw_params+0x20/0xd4)
[<80292180>] (aaci_pcm_hw_params+0x20/0xd4) from [<80276ce4>] (snd_pcm_hw_params+0x114/0x3e0)
[<80292180>] (aaci_pcm_hw_params+0x20/0xd4) from [<80276ce4>] (snd_pcm_hw_params+0x114/0x3e0)
[<80276ce4>] (snd_pcm_hw_params+0x114/0x3e0) from [<80277984>] (snd_pcm_common_ioctl1+0x5a0/0x10a4)
[<80276ce4>] (snd_pcm_hw_params+0x114/0x3e0) from [<80277984>] (snd_pcm_common_ioctl1+0x5a0/0x10a4)
[<80277984>] (snd_pcm_common_ioctl1+0x5a0/0x10a4) from [<80278990>] (snd_pcm_playback_ioctl1+0x38/0x4c0)
[<80277984>] (snd_pcm_common_ioctl1+0x5a0/0x10a4) from [<80278990>] (snd_pcm_playback_ioctl1+0x38/0x4c0)
[<80278990>] (snd_pcm_playback_ioctl1+0x38/0x4c0) from [<80278e84>] (snd_pcm_kernel_ioctl+0x40/0x6c)
[<80278990>] (snd_pcm_playback_ioctl1+0x38/0x4c0) from [<80278e84>] (snd_pcm_kernel_ioctl+0x40/0x6c)
[<80278e84>] (snd_pcm_kernel_ioctl+0x40/0x6c) from [<80282730>] (snd_pcm_oss_change_params+0x818/0xcc0)
[<80278e84>] (snd_pcm_kernel_ioctl+0x40/0x6c) from [<80282730>] (snd_pcm_oss_change_params+0x818/0xcc0)
[<80282730>] (snd_pcm_oss_change_params+0x818/0xcc0) from [<80283214>] (snd_pcm_oss_get_active_substream+0x68/0x74)
[<80282730>] (snd_pcm_oss_change_params+0x818/0xcc0) from [<80283214>] (snd_pcm_oss_get_active_substream+0x68/0x74)
[<80283214>] (snd_pcm_oss_get_active_substream+0x68/0x74) from [<80283230>] (snd_pcm_oss_get_rate+0x10/0x28)
[<80283214>] (snd_pcm_oss_get_active_substream+0x68/0x74) from [<80283230>] (snd_pcm_oss_get_rate+0x10/0x28)
[<80283230>] (snd_pcm_oss_get_rate+0x10/0x28) from [<80284658>] (snd_pcm_oss_ioctl+0xbb8/0xd2c)
[<80283230>] (snd_pcm_oss_get_rate+0x10/0x28) from [<80284658>] (snd_pcm_oss_ioctl+0xbb8/0xd2c)
[<80284658>] (snd_pcm_oss_ioctl+0xbb8/0xd2c) from [<800c6c9c>] (do_vfs_ioctl+0x80/0x5b0)
[<80284658>] (snd_pcm_oss_ioctl+0xbb8/0xd2c) from [<800c6c9c>] (do_vfs_ioctl+0x80/0x5b0)
[<800c6c9c>] (do_vfs_ioctl+0x80/0x5b0) from [<800c7204>] (sys_ioctl+0x38/0x60)
[<800c6c9c>] (do_vfs_ioctl+0x80/0x5b0) from [<800c7204>] (sys_ioctl+0x38/0x60)
[<800c7204>] (sys_ioctl+0x38/0x60) from [<8000e2c0>] (ret_fast_syscall+0x0/0x30)
[<800c7204>] (sys_ioctl+0x38/0x60) from [<8000e2c0>] (ret_fast_syscall+0x0/0x30)

iconv

后续移植

iconv概述

iconv是字符编码转换库

iconv应用

FrameBuffer

后续移植

FrameBuffer概述

framebuffer简介

image-20241015225141191

FrameBuffer编程模型

image-20241015225312473

对framebuffer设备操作

image-20241015225538409

操作framebuffer步骤

image-20241015225711248

framebuffer信息结构

framebuffer实战