编译oprofile的FAQ

fpseustar

Q1:
下载从
http://oprofile.sourceforge.net/download/  网址下载 oprofile-0.9.5.tar.gz
文件，将其放到我虚拟机的/nfs/memtest/oprofile文件夹下面并将其解压缩。
[root@localhost oprofile-0.9.5]# ./configure --with-kernel-support --target=arm-linux --host=arm-none-linux-gnueabi --build=i686-pc-linux-gnu --prefix=/nfs/memtest/oprofile/oprofile-0.9.5/usr/
checking for a BSD-compatible install... /usr/bin/install -c
checking whether build environment is sane... yes
checking for gawk... gawk
checking whether make sets $(MAKE)... yes
checking for arm-none-linux-gnueabi-strip... arm-none-linux-gnueabi-strip
checking for style of include used by make... GNU
checking for arm-none-linux-gnueabi-gcc... arm-none-linux-gnueabi-gcc
checking for C compiler default output file name... a.out
checking whether the C compiler works... yes
checking whether we are cross compiling... yes
checking for kernel OProfile support... yes
checking whether malloc attribute is understood... no
checking whether __builtin_expect is understood... yes
checking for sched_setaffinity... yes
checking for perfmonctl... no
checking for poptGetContext in -lpopt... no
configure: error: popt library not found
看来需要popt库才行啊
从
http://download.chinaunix.net/download.php?id=16763&ResourceID=8268
地方
下载popt-1.7.tar.gz文件
cp  /work/popt/poptinstall/lib/*  /opt/crosstool/gcc-3.4.1-glibc-2.3.3/arm-9tdmi-linux-gnu/arm-9tdmi-linux-gnu/lib
/usr/local/arm/arm-2008q3/arm-none-linux-gnueabi/libc/lib

Q2:
接着再编译，还是有问题啊：
[root@localhost oprofile-0.9.5]# ./configure --with-kernel-support --target=arm-linux --host=arm-none-linux-gnueabi --build=i686-pc-linux-gnu --prefix=/nfs/memtest/oprofile/oprofile-0.9.5/usr/
checking for a BSD-compatible install... /usr/bin/install -c
checking whether build environment is sane... yes
checking for gawk... gawk
checking whether make sets $(MAKE)... yes
checking whether __builtin_expect is understood... yes
checking for sched_setaffinity... yes
checking for perfmonctl... no
checking for poptGetContext in -lpopt... yes
checking libiberty.h usability... no
checking libiberty.h presence... no
checking for libiberty.h... no
checking for cplus_demangle in -liberty... no
configure: error: liberty library not found

看来还得下载libiberty库，这个库是干吗的呢？？
原来它真正的是：binutils库，他是一个大杂烩，包括对一些内存管理、字符串处理函数的扩充。看看目录树差不多就可知道一个大概，基本上 是一个文件实现一个函数。
我接着又去
http://download.chinaunix.net/download.php?id=25887&ResourceID=900
下载
binutils-2.19.51.0.12.tar.bz2文件
再将其解压，安装下

Q3:
接着编译发现还是不行啊：
[root@localhost oprofile-0.9.5]# ./configure --with-kernel-support --target=arm-linux --host=arm-none-linux-gnueabi --build=i686-pc-linux-gnu --prefix=/nfs/memtest/oprofile/oprofile-0.9.5/usr/
checking for a BSD-compatible install... /usr/bin/install -c
checking whether build environment is sane... yes
checking for gawk... gawk
checking whether make sets $(MAKE)... yes
checking for arm-none-linux-gnueabi-strip... arm-none-linux-gnueabi-strip
checking for style of include used by make... GNU
checking for arm-none-linux-gnueabi-gcc... arm-none-linux-gnueabi-gcc
checking for C compiler default output file name...
checking whether __builtin_expect is understood... yes
checking for sched_setaffinity... yes
checking for perfmonctl... no
checking for poptGetContext in -lpopt... yes
checking libiberty.h usability... no
checking libiberty.h presence... no
checking for libiberty.h... no
checking for cplus_demangle in -liberty... yes
checking for xcalloc... yes
checking for xmemdup... yes
checking for dlopen in -ldl... yes
checking for main in -lintl... no
checking for bfd_openr in -lbfd... no
checking for compress in -lz... no
configure: error: libz library not found; required by libbfd

nnd，怎么编译了半天还是和arm-linux-gcc3.4.1一样啊，出现这个问题，上网查了下发现原来libbfd就是binutils一部分，只是你在默认的情况下编译binutils时是不会去安装libbfd，你必须要指明--enable-install-libbfd，这样才能显示安装libbfd库的，于是我在binutils-2.19.51.0.12文件夹下面直接找到了bfd文件夹，在其下的文件中找到了libbfd.a静态库，将其直接拷贝到/usr/local/arm/arm-2008q3/arm-none-linux-gnueabi/libc/lib
然后接着再回到oprofile-0.9.5目录下继续交叉编译oprofile-0.9.5
[root@localhost oprofile-0.9.5]# ./configure --with-kernel-support --target=arm-linux --host=arm-none-linux-gnueabi --build=i686-pc-linux-gnu --prefix=/nfs/memtest/oprofile/oprofile-0.9.5/usr/
checking for a BSD-compatible install... /usr/bin/install -c
checking whether build environment is sane... yes
checking for gawk... gawk
checking whether make sets $(MAKE)... yes
checking for arm-none-linux-gnueabi-strip... arm-none-linux-gnueabi-strip
checking for style of include used by make... GNU
checking for arm-none-linux-gnueabi-gcc... arm-none-linux-gnueabi-gcc
config.status: executing depfiles commands
Warning: a working Qt not found; no GUI will be built
Warning: The user account 'oprofile:oprofile' does not exist on the system.
         To profile JITed code, this special user account must exist.
         Please add the following user and group:
             user name : 'oprofile'
             group name: 'oprofile'
         The 'oprofile' group must be the default group for the 'oprofile' user.
总算成功交叉配置了oprofile-0.9.5，哈哈

Q5:
现在开始编译oprofile-0.9.5，刚一开始敲make命令就发现出现错误了：
[root@localhost oprofile-0.9.5]# make
make  all-recursive
make[1]: Entering directory `/nfs/memtest/oprofile/oprofile-0.9.5'
Making all in .
make[2]: Entering directory `/nfs/memtest/oprofile/oprofile-0.9.5'
make[2]: Nothing to be done for `all-am'.
make[2]: Leaving directory `/nfs/memtest/oprofile/oprofile-0.9.5'
Making all in m4
make[2]: Entering directory `/nfs/memtest/oprofile/oprofile-0.9.5/m4'
make[2]: Nothing to be done for `all'.
make[2]: Leaving directory `/nfs/memtest/oprofile/oprofile-0.9.5/m4'
opagent.c:63:17: error: bfd.h: No such file or directory
opagent.c: In function 'define_bfd_vars':
opagent.c:77: error: 'bfd' undeclared (first use in this function)
opagent.c:77: error: (Each undeclared identifier is reported only once
opagent.c:77: error: for each function it appears in.)
opagent.c:78: error: 'bfd_boolean' undeclared (first use in this function)
opagent.c:78: error: expected ';' before 'r'
opagent.c:103: error: 'r' undeclared (first use in this function)
opagent.c:103: error: 'bfd_object' undeclared (first use in this function)
make[2]: *** [libopagent_la-opagent.lo] 错误 1
make[2]: Leaving directory `/nfs/memtest/oprofile/oprofile-0.9.5/libopagent'
make[1]: *** [all-recursive] 错误 1
make[1]: Leaving directory `/nfs/memtest/oprofile/oprofile-0.9.5'
make: *** [all] 错误 2
原来是bfd.h头文件找不到，nnd于是我又到binutils-2.19.51.0.12下面去找bfd.h头文件，接着又把bfd.h相关的ansidecl.h，symcat.h总共这三个文件都拷贝到/usr/local/arm/arm-2008q3/arm-none-linux-gnueabi/include目录下面，接着再次make，哈哈，成功过关！！
[root@localhost oprofile-0.9.5]# make
make  all-recursive
make[1]: Entering directory `/nfs/memtest/oprofile/oprofile-0.9.5'
Making all in .
make[2]: Entering directory `/nfs/memtest/oprofile/oprofile-0.9.5'
make[2]: Nothing to be done for `all-am'.
make[2]: Leaving directory `/nfs/memtest/oprofile/oprofile-0.9.5'
Making all in m4
make[2]: Entering directory `/nfs/memtest/oprofile/oprofile-0.9.5/m4'make[2]: Leaving directory `/nfs/memtest/oprofile/oprofile-0.9.5/gui'
Making all in agents
make[2]: Entering directory `/nfs/memtest/oprofile/oprofile-0.9.5/agents'
make[3]: Entering directory `/nfs/memtest/oprofile/oprofile-0.9.5/agents'
make[3]: Nothing to be done for `all-am'.
make[3]: Leaving directory `/nfs/memtest/oprofile/oprofile-0.9.5/agents'
make[2]: Leaving directory `/nfs/memtest/oprofile/oprofile-0.9.5/agents'
make[1]: Leaving directory `/nfs/memtest/oprofile/oprofile-0.9.5'
再接着make install一下就会在/nfs/memtest/oprofile/oprofile-0.9.5/usr/bin目录opcontrol，opgprog等工具，哈哈
[root@localhost bin]# ls
arm-linux-addr2line  arm-linux-c++filt  arm-linux-nm       arm-linux-ranlib   arm-linux-strings  oparchive  ophelp     opreport
arm-linux-ar         arm-linux-gprof    arm-linux-objcopy  arm-linux-readelf  arm-linux-strip    opcontrol  opimport   oprofiled
arm-linux-as         arm-linux-ld       arm-linux-objdump  arm-linux-size     opannotate         opgprof    opjitconv

接着再把oprofile相关的工具都拷贝到我们的网络文件系统的/usr/sbin下面去，这样我们就能在SEP4020开发板上使用这些工具了

Q6:开始真正地在SEP4020开发板上运行程序了
启动内核，挂载文件系统，这里需要注意的是，我的内核的profile选项是都选择上的，注意另外还需要将eabi选项也选上才行.
等文件系统挂载上去后就需要输入以下命令：但出现错误了。
/dev # opcontrol --init
/usr/sbin/opcontrol: line 1114: syntax error: Bad substitution
上网找了下，需要给我们的arm平台的opcontrol脚本打一个补丁：
diff -ru orig/utils/opcontrol new/utils/opcontrol
--- orig/utils/opcontrol        2009-07-31 11:10:18.000000000 -0600
+++ new/utils/opcontrol 2009-10-05 11:55:15.000000000 -0600
@@ -1111,9 +1111,7 @@
{
        case "$1" in
                ppc64/*)
-                       tmp="${1/cell/CELL}"
-                       if test "$1" = "$tmp"; then
-                       #No substituion occurred, so cputype is not cell
+                       if echo $1 | grep -q cell ; then
                                return 1
                        else
                                return 0

Q7:
现在再执行下，但还是出问题：
/dev # opcontrol --init
Kernel support not available, missing opcontrol --init as root ?
嗯，居然权限出问题了，重启一下再执行，这个问题是没了，可是又出现新的问题了：
/dev # opcontrol --init
cat: can't open '/dev/oprofile/cpu_type': No such file or directory
/usr/sbin/ophelp: error while loading shared libraries: libpopt.so.0: cannot open shared object file: No such file or directory
看来第二问题是库没从安装文件夹里拷到我们的网络文件系统/nfs/lib下面来，于是我去拷过来，有出现下面的问题：
/dev # opcontrol --init
cat: can't open '/dev/oprofile/cpu_type': No such file or directory
Unable to open cpu_type file for reading
Make sure you have done opcontrol --init
cpu_type 'unset' is not valid
you should upgrade oprofile or force the use of timer mode
晕的啦

Q7: cat: can't open '/dev/oprofile/cpu_type': No such file or directory
Step1：重新启动target
step2：执行# ./opcontrol --init
       显示：
        # ./opcontrol --init
        cat: can't open '/dev/oprofile/cpu_type': No such file or directory
        Unable to open cpu_type file for reading
        Make sure you have done opcontrol --init
        cpu_type 'unset' is not valid
        you should upgrade oprofile or force the use of timer mode
Step3: 删除/etc目录下的mtab文件
          Rm -f /etc/mtab
Step4:执行# ./opcontrol --init
       显示：
       # ./opcontrol --init
       grep: /etc/mtab: No such file or directory
       grep: /etc/mtab: No such file or directory
Kernel support not available, missing opcontrol --init as root ?
Step5:重新在/etc/目录下创建mtab并添加“nodev /dev/oprofile oprofilefs rw 0 0”
         touch /etc/mtab
         Vi /etc/mtab
         Insert  "nodev /dev/oprofile oprofilefs rw 0 0"   --->在mtab中添加的内容
Step6:执行# ./opcontrol –init
Kernel support not available, missing opcontrol --init as root ?
         ok

Q8: “Kernel support not available, missing opcontrol --init as root ?”
为啥还出现“Kernel support not available, missing opcontrol --init as root ?”这个东西呢？？
今天中午吃完中饭又去找了一遍，总算知道原因了：
check_version()
{
       OPROFILE_AVAILABLE=no
       grep oprofilefs /etc/mtab >/dev/null
       if test "$?" -eq 0; then
              # need to have oprofilefs mounted for this to work on 2.6
              KERNEL_SUPPORT=yes
              OPROFILE_AVAILABLE=yes
              return
       fi
}
原来是在opcontrol这个脚本的1790行判断“$?”这个shell变量出问题了，这个变量是判断上次操作时的退出符的，我打印出$?一看发现是‘1’，看来真的是上句出问题了，那它的上句就是grep oprofilefs /etc/mtab >/dev/null 了，这说明grep没有查询到任何一行合适的语句，看来是/etc/mtab文件出问题了，这个文件是我手动敲进去的，看来肯定是这个出问题了，一看果然出问题了，应该是
nodev /dev/oprofile oprofilefs rw 0 0
而我写的是nodev /dev/oprofile oprofile rw 0 0自己真是太粗心了！！！


Q9:再次编译binutils工具集时发现./configure无法生效
[fpmystar@SEP4020 binutils-2.19.51.0.12]$ make -j8
make[1]: Entering directory `/home/fpmystar/oprofile/binutils-2.19.51.0.12'
make[1]: Nothing to be done for `all-target'.
Configuring in ./intl
Configuring in ./libiberty
Configuring in ./etc
configure: loading cache ./config.cache
checking for a BSD-compatible install... configure: loading cache ./config.cache
configure: loading cache ./config.cache
/usr/bin/install -c
configure: error: `CFLAGS' has changed since the previous run:
configure:   former value:  `-g -O2'
configure:   current value: `-march=armv4t'
configure: error: in `/home/fpmystar/oprofile/binutils-2.19.51.0.12/intl':
configure: error: changes in the environment can compromise the build
configure: error: run `make distclean' and/or `rm ./config.cache' and start over
configure: error: `CFLAGS' has changed since the previous run:
configure:   former value:  `-g -O2'
configure:   current value: `-march=armv4t'
configure: error: in `/home/fpmystar/oprofile/binutils-2.19.51.0.12/libiberty':
configure: error: changes in the environment can compromise the build
configure: error: run `make distclean' and/or `rm ./config.cache' and start over
configure: creating ./config.status
make[1]: *** [configure-intl] 错误 1
make[1]: *** %3

本文来自ChinaUnix博客，如果查看原文请点：http://blog.chinaunix.net/u3/99507/showart_2153843.html