移植第六十五章 Linux 音频驱动实验遇到的问题

woshi520laoxie · 发表于 2020-4-19 14:38:01

大家好 - 咨询一下移植 alsa-utils 遇到的一个问题

移植过程有两个
65.4.1 alsa-lib 移植       # 第一个移植
65.4.2 alsa-utils 移植    # 第二个移植

问题出在 65.4.2 alsa-utils 移植 # 第二个移植无法执行make

alsa-utils 移植
1.1、编译指令加入回车换行，好看一些
./configure --host=arm-linux-gnueabihf
--prefix=/home/sambaShare/tools/alsaLib_process/alsa-utils/alsa-utils          # 路径1
--with-alsa-inc-prefix=/home/sambaShare/tools/xwzSelf_alsa_lib/include/    # 路径2
--with-alsaprefix=/home/sambaShare/tools/xwzSelf_alsa_lib/lib/ # 路径3
--disable-alsamixer --disable-xmlto

# 路径1  自己建立的用于放置接下来编译好的 alsa-utils
# 路径2  之前alsa-lib-1.2.2编译出来的目录

查看  之前alsa-lib-1.2.2编译出来的文件
xwz@xwz-virtual-machine:/home/sambaShare/tools/xwzSelf_alsa_lib$ ls
include  lib
xwz@xwz-virtual-machine:/home/sambaShare/tools/xwzSelf_alsa_lib$ ls include/
alsa  asoundlib.h  sys
xwz@xwz-virtual-machine:/home/sambaShare/tools/xwzSelf_alsa_lib$ ls lib/
libasound.la  libasound.so  libasound.so.2  libasound.so.2.0.0

准备用于存放 alsa-utils 编译出来的文件的目录这是一个空目录
xwz@xwz-virtual-machine:/home/sambaShare/tools/alsaLib_process/alsa-utils/alsa-utils$ pwd
/home/sambaShare/tools/alsaLib_process/alsa-utils/alsa-utils  # 空目录

1.2、进入 alsa-utils-1.2.2 目录
xwz@xwz-virtual-machine:/home/sambaShare/tools/alsaLib_process/alsa-utils/alsa-utils-1.2.2$ ls
ABOUT-NLS    alsa-info  amixer    compile    configure    iecset    Makefile.am  seq          utils
acinclude.m4  alsaloop aplay    config.guess  configure.ac  include    Makefile.in  speaker-test
aclocal.m4 alsamixer  axfer    config.log COPYING    INSTALL    missing    test-driver
alsaconf    alsaucm bat       config.rpath  depcomp    install-sh  po          TODO
alsactl    amidi    ChangeLog  config.sub gitcompile m4       README.md topology

1.3、执行配置指令报的异常
./configure --host=arm-linux-gnueabihf --prefix=/home/sambaShare/tools/alsaLib_process/alsa-utils/alsa-utils --with-alsa-inc-prefix=/home/sambaShare/tools/xwzSelf_alsa_lib/include/ --with-alsaprefix=/home/sambaShare/tools/xwzSelf_alsa_lib/lib/ --disable-alsamixer --disable-xmlto
----》
checking for pkg-config... /usr/bin/pkg-config
configure: WARNING: using cross tools not prefixed with host triplet
checking pkg-config is at least version 0.9.0... yes
checking for ALSA CFLAGS...  -I/home/sambaShare/tools/xwzSelf_alsa_lib/include/
checking for dlopen in -lc... no
checking for dlopen in -ldl... yes
checking for ALSA LDFLAGS...  -lasound -lm -ldl -lpthread
checking required libasound headers version... 1.0.27
checking for libasound headers version >= 1.0.27 (1.0.27)... found.
checking for libatopology (sound headers version > 1.1.9)... yes
checking for snd_ctl_open in -lasound... no
configure: error: No linkable libasound was found.

1.4、可能由于错误，无法执行make
xwz@xwz-virtual-machine:/home/sambaShare/tools/alsaLib_process/alsa-utils/alsa-utils-1.2.2$ make
make: *** 没有指明目标并且找不到 makefile。停止。

zuozhongkai · 发表于 2020-4-19 14:38:02

本帖最后由 zuozhongkai 于 2020-4-20 11:43 编辑

按照如下补助重新编译一下alsa-lib，注意，重点是libatopology.la编译失败的处理方法：
KPKX1QFZR95UJPJQY$]5JP1.png

正点原子 · 发表于 2020-4-20 01:08:15

帮顶

woshi520laoxie · 发表于 2020-5-1 11:04:10

zuozhongkai 发表于 2020-4-20 11:42
按照如下补助重新编译一下alsa-lib，注意，重点是libatopology.la编译失败的处理方法：

报的是警告，是否有影响呢？
make[3]: Nothing to be done for 'install-data-am'.
make[3]: Leaving directory '/home/sambaShare/tools/alsa-lib-1.2.2/src'
make[2]: Leaving directory '/home/sambaShare/tools/alsa-lib-1.2.2/src'
make[1]: Leaving directory '/home/sambaShare/tools/alsa-lib-1.2.2/src'
Making install in src/topology
make[1]: Entering directory '/home/sambaShare/tools/alsa-lib-1.2.2/src/topology'
make[2]: Entering directory '/home/sambaShare/tools/alsa-lib-1.2.2/src/topology'
/bin/mkdir -p '/home/sambaShare/tools/xwzSelf_alsa_lib/lib'
/bin/bash ../../libtool --mode=install /usr/bin/install -c libatopology.la '/home/sambaShare/tools/xwzSelf_alsa_lib/lib'
libtool: warning: relinking 'libatopology.la'
libtool: install: (cd /home/sambaShare/tools/alsa-lib-1.2.2/src/topology; /bin/bash "/home/sambaShare/tools/alsa-lib-1.2.2/libtool" --silent --tag CC --mode=relink arm-linux-gnueabihf-gcc -g -O2 -version-info 2:0:0 -Wl,--version-script=../Versions -Wl,-z,defs -o libatopology.la -rpath /home/sambaShare/tools/xwzSelf_alsa_lib/lib parser.lo builder.lo ctl.lo dapm.lo pcm.lo data.lo text.lo channel.lo ops.lo elem.lo save.lo decoder.lo log.lo ../libasound.la )
libtool: install: /usr/bin/install -c .libs/libatopology.so.2.0.0T /home/sambaShare/tools/xwzSelf_alsa_lib/lib/libatopology.so.2.0.0