TILERA--Makefile实例

港控/mmm° 2022-08-22 01:25 144阅读 0赞

Makefile文件内容：

\# Default target.

all:

ifdef TILERA\_ROOT  
CC = $(TILERA\_ROOT)/bin/tile-gcc  
else  
ifeq ($(filter tile%,$(shell uname -m)),)  
$(error The 'TILERA\_ROOT' environment variable is not set.)  
endif  
CC = gcc  
endif  
OPT = -Os  
CFLAGS = -std=gnu99 -Wall -Werror -g $(OPT)  
EXE = multi\_tile  
$(EXE).o: $(EXE).c  
$(CC) $(CFLAGS) $(XFLAGS) -c -o $@ $<  
$(EXE): $(EXE).o  
$(CC) $(LDFLAGS) $(XFLAGS) -o $@ $< **-ltmc**  
all: $(EXE)  
clean:  
rm -f \*.o $(EXE)  
.PHONY: all clean  
ifdef TILERA\_ROOT  
SIZE = 4x4  
TILE\_MONITOR = $(TILERA\_ROOT)/bin/tile-monitor  
  
COMMON\_ARGS = \\  
  --mkdir /opt/test --cd /opt/test \\  
  --upload $(EXE) $(EXE) -- $(EXE)  
DEV\_ARGS = --tile $(SIZE) $(COMMON\_ARGS)  
SIM\_ARGS = --image $(SIZE) --functional $(COMMON\_ARGS)  
run\_dev: $(EXE)  
$(TILE\_MONITOR) $(DEV\_ARGS)  
test\_dev: $(EXE)  
set -e -o pipefail; \\  
$(TILE\_MONITOR) $(DEV\_ARGS) \\  
 > $@.out; \\  
diff $(EXE).out $@.out  
run\_sim: $(EXE)  
$(TILE\_MONITOR) $(SIM\_ARGS)  
test\_sim: $(EXE)  
set -e -o pipefail; \\  
$(TILE\_MONITOR) $(SIM\_ARGS) \\  
 > $@.out; \\  
diff $(EXE).out $@.out  
.PHONY: run\_dev test\_dev run\_sim test\_sim  
  
else  
run: $(EXE)  
./$(EXE)  
test: $(EXE)  
set -e -o pipefail; \\  
./$(EXE) > $@.out; \\  
diff $(EXE).out $@.out  
.PHONY: run test

endif

main.c文件包含头文件如下：

\#include <stdio.h>  
\#include <stdlib.h>  
\#include <unistd.h>  
\#include <tmc/alloc.h>  
\#include <sys/types.h>  
\#include <tmc/cpus.h>  
\#include <tmc/task.h>  
\#include <tmc/udn.h>

main.c文件内容如下：

\#include <stdio.h>  
\#include <stdlib.h>  
\#include <unistd.h>  
\#include <tmc/alloc.h>  
\#include <sys/types.h>  
\#include <tmc/cpus.h>  
\#include <tmc/task.h>  
\#include <tmc/udn.h>

// We will use N cpus to calculate the sum of N \* M integers.  
\#define NUM\_CPUS 8  
\#define INTS\_PER\_CPU 1024  
\#define TOTAL\_INTS (NUM\_CPUS \* INTS\_PER\_CPU)  
  
  
static int parallelize(int count)  
 \{  
      cpu\_set\_t cpus;  
     if (tmc\_cpus\_get\_my\_affinity(&cpus) != 0)  
           tmc\_task\_die("Failure in 'tmc\_cpus\_get\_my\_affinity()'.");  
     if (tmc\_cpus\_count(&cpus) < count)  
         tmc\_task\_die("Insufficient cpus (%d < %d).", tmc\_cpus\_count(&cpus), count);  
    // int watch\_forked\_children = tmc\_task\_watch\_forked\_children(1);  
     tmc\_task\_watch\_forked\_children(1);  
     int rank;  
     for (rank = 1; rank < count; rank++)  
     \{  
          pid\_t child = fork();  
          if (child < 0)  
            tmc\_task\_die("Failure in 'fork()'.");  
          if (child == 0) //父进程事物  
             \{   //  goto done;  
              //if (tmc\_cpus\_set\_my\_cpu(tmc\_cpus\_find\_nth\_cpu(&cpus, rank)) < 0)  
              if (tmc\_cpus\_set\_my\_cpu(rank) < 0)  
                          tmc\_task\_die("Failure in 'tmc\_cpus\_set\_my\_cpu()'.");  
             \}  
           if (child > 0) //父进程事物          
            \{  
             for (uint32\_t i = 0; i < 500000; i++) //子进程事物  
                          printf("childpid000\\n");  
             \}      
     \}  
   //  rank = 0;  
   // (void)tmc\_task\_watch\_forked\_children(watch\_forked\_children);  
  //done:  
   // if (tmc\_cpus\_set\_my\_cpu(tmc\_cpus\_find\_nth\_cpu(&cpus, rank)) < 0)  
   //              tmc\_task\_die("Failure in 'tmc\_cpus\_set\_my\_cpu()'.");  
   return rank;  
 \}  
  
  
int main(int argc, char\*\*argv)  
\{  
  // Make sure we have enough cpus.  
  cpu\_set\_t cpus;  
  if (tmc\_cpus\_get\_my\_affinity(&cpus) != 0)  
    tmc\_task\_die("Failure in 'tmc\_cpus\_get\_my\_affinity()'.");  
  
   parallelize(NUM\_CPUS);  
  
  
\}

查找tmc库的位置：

\[root@COMPASS-COMPASS:0115 /home\]\# find / -name \*tmc.so  
/usr/lib32/libtmc.so  
/usr/lib/libtmc.so  
\[root@COMPASS-COMPASS:0115 /home\]\# find / -name \*tmc.a  
/usr/lib32/libtmc.a  
/usr/lib/feedback/libtmc.a  
/usr/lib/libtmc.a

\[root@COMPASS-COMPASS:0115 /home\]\#

如果在Makefile中不加入-ltmc连接自己的动态库libtmc.so时，编译过程中会出错：

\[root@COMPASS-COMPASS:0115 /usr/tilera/examples/tmc/multi\_tile\]\# make  
gcc   -o multi\_tile multi\_tile.o   
multi\_tile.o: In function \`sum\_of\_sums':  
/usr/tilera/examples/tmc/multi\_tile/multi\_tile.c:102: undefined reference to \`tmc\_cpus\_find\_nth\_cpu'  
/usr/tilera/examples/tmc/multi\_tile/multi\_tile.c:103: undefined reference to \`tmc\_udn\_header\_from\_cpu'  
multi\_tile.o: In function \`tmc\_cpus\_get\_my\_affinity':  
//usr/include/tmc/cpus.h:401: undefined reference to \`tmc\_cpus\_get\_task\_affinity'  
multi\_tile.o: In function \`tmc\_alloc\_map':  
//usr/include/tmc/alloc.h:328: undefined reference to \`tmc\_alloc\_map\_at'  
multi\_tile.o: In function \`main':  
/usr/tilera/examples/tmc/multi\_tile/multi\_tile.c:142: undefined reference to \`tmc\_udn\_init'  
multi\_tile.o: In function \`tmc\_cpus\_get\_my\_affinity':  
//usr/include/tmc/cpus.h:401: undefined reference to \`tmc\_cpus\_get\_task\_affinity'  
multi\_tile.o: In function \`parallelize':  
/usr/tilera/examples/tmc/multi\_tile/multi\_tile.c:48: undefined reference to \`tmc\_cpus\_count'  
/usr/tilera/examples/tmc/multi\_tile/multi\_tile.c:51: undefined reference to \`tmc\_task\_watch\_forked\_children'  
/usr/tilera/examples/tmc/multi\_tile/multi\_tile.c:64: undefined reference to \`tmc\_task\_watch\_forked\_children'  
/usr/tilera/examples/tmc/multi\_tile/multi\_tile.c:68: undefined reference to \`tmc\_cpus\_find\_nth\_cpu'  
multi\_tile.o: In function \`tmc\_cpus\_set\_my\_cpu':  
//usr/include/tmc/cpus.h:415: undefined reference to \`tmc\_cpus\_set\_task\_cpu'  
multi\_tile.o: In function \`main':  
/usr/tilera/examples/tmc/multi\_tile/multi\_tile.c:149: undefined reference to \`tmc\_udn\_activate'  
/usr/tilera/examples/tmc/multi\_tile/multi\_tile.c:137: undefined reference to \`tmc\_task\_die'  
multi\_tile.o: In function \`parallelize':  
/usr/tilera/examples/tmc/multi\_tile/multi\_tile.c:49: undefined reference to \`tmc\_cpus\_count'  
/usr/tilera/examples/tmc/multi\_tile/multi\_tile.c:49: undefined reference to \`tmc\_task\_die'  
multi\_tile.o: In function \`main':  
/usr/tilera/examples/tmc/multi\_tile/multi\_tile.c:137: undefined reference to \`tmc\_task\_die'  
/usr/tilera/examples/tmc/multi\_tile/multi\_tile.c:137: undefined reference to \`tmc\_task\_die'  
/usr/tilera/examples/tmc/multi\_tile/multi\_tile.c:137: undefined reference to \`tmc\_task\_die'  
/usr/tilera/examples/tmc/multi\_tile/multi\_tile.c:137: undefined reference to \`tmc\_task\_die'  
multi\_tile.o:/usr/tilera/examples/tmc/multi\_tile/multi\_tile.c:137: more undefined references to \`tmc\_task\_die' follow  
collect2: ld returned 1 exit status  
make: \*\*\* \[multi\_tile\] Error 1  
\[root@COMPASS-COMPASS:0115 /usr/tilera/examples/tmc/multi\_tile\]\#

错误提示，找不到指定的库中的函数。

加入-ltmc选项后，系统会到默认的 /usr/lib 或/lib等目录下搜索相应的库文件，如libtmc.so或libtmc.a等动态库或静态库。如果同一个目录下有相同名字的库文件（动态库和静态库）时，如libtmc.so和libtmc.a，此时系统优先选择使用动态库libtmc.so。

查看系统环境变量：

\[root@localhost ~\]\# env  
HOSTNAME=localhost  
SELINUX\_ROLE\_REQUESTED=  
TERM=xterm  
SHELL=/bin/bash  
HISTSIZE=1000  
SSH\_CLIENT=172.23.22.159 63804 22  
SELINUX\_USE\_CURRENT\_RANGE=  
QTDIR=/usr/lib/qt-3.3  
QTINC=/usr/lib/qt-3.3/include  
SSH\_TTY=/dev/pts/0  
USER=root  
LS\_COLORS=rs=0:di=01;34:ln=01;36:mh=00:pi=40;33:so=01;35:do=01;35:bd=40;33;01:cd=40;33;01:or=40;31;01:mi=01;05;37;41:su=37;41:sg=30;43:ca=30;41:tw=30;42:ow=34;42:st=37;44:ex=01;32:\*.tar=01;31:\*.tgz=01;31:\*.arj=01;31:\*.taz=01;31:\*.lzh=01;31:\*.lzma=01;31:\*.tlz=01;31:\*.txz=01;31:\*.zip=01;31:\*.z=01;31:\*.Z=01;31:\*.dz=01;31:\*.gz=01;31:\*.lz=01;31:\*.xz=01;31:\*.bz2=01;31:\*.tbz=01;31:\*.tbz2=01;31:\*.bz=01;31:\*.tz=01;31:\*.deb=01;31:\*.rpm=01;31:\*.jar=01;31:\*.rar=01;31:\*.ace=01;31:\*.zoo=01;31:\*.cpio=01;31:\*.7z=01;31:\*.rz=01;31:\*.jpg=01;35:\*.jpeg=01;35:\*.gif=01;35:\*.bmp=01;35:\*.pbm=01;35:\*.pgm=01;35:\*.ppm=01;35:\*.tga=01;35:\*.xbm=01;35:\*.xpm=01;35:\*.tif=01;35:\*.tiff=01;35:\*.png=01;35:\*.svg=01;35:\*.svgz=01;35:\*.mng=01;35:\*.pcx=01;35:\*.mov=01;35:\*.mpg=01;35:\*.mpeg=01;35:\*.m2v=01;35:\*.mkv=01;35:\*.ogm=01;35:\*.mp4=01;35:\*.m4v=01;35:\*.mp4v=01;35:\*.vob=01;35:\*.qt=01;35:\*.nuv=01;35:\*.wmv=01;35:\*.asf=01;35:\*.rm=01;35:\*.rmvb=01;35:\*.flc=01;35:\*.avi=01;35:\*.fli=01;35:\*.flv=01;35:\*.gl=01;35:\*.dl=01;35:\*.xcf=01;35:\*.xwd=01;35:\*.yuv=01;35:\*.cgm=01;35:\*.emf=01;35:\*.axv=01;35:\*.anx=01;35:\*.ogv=01;35:\*.ogx=01;35:\*.aac=01;36:\*.au=01;36:\*.flac=01;36:\*.mid=01;36:\*.midi=01;36:\*.mka=01;36:\*.mp3=01;36:\*.mpc=01;36:\*.ogg=01;36:\*.ra=01;36:\*.wav=01;36:\*.axa=01;36:\*.oga=01;36:\*.spx=01;36:\*.xspf=01;36:  
MAIL=/var/spool/mail/root  
PATH=/opt/tilera/TileraMDE/tilegx/bin:/usr/lib/qt-3.3/bin:/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/opt/subversion/bin:/root/bin  
PWD=/root  
LANG=zh\_CN.UTF-8  
SELINUX\_LEVEL\_REQUESTED=  
SSH\_ASKPASS=/usr/libexec/openssh/gnome-ssh-askpass  
HISTCONTROL=ignoredups  
SHLVL=1  
HOME=/root  
TILERA\_ROOT=/opt/tilera/TileraMDE/tilegx  
LOGNAME=root  
QTLIB=/usr/lib/qt-3.3/lib  
CVS\_RSH=ssh  
SSH\_CONNECTION=172.23.22.159 63804 172.23.22.245 22  
LESSOPEN=||/usr/bin/lesspipe.sh %s  
G\_BROKEN\_FILENAMES=1  
\_=/bin/env  
\[root@localhost ~\]\# vim /etc/profile   
\[root@localhost ~\]\#

查看/ect/profile文件内容：

\[root@localhost ~\]\# vim /etc/profile   
  
  
 60 \# /usr/share/doc/setup-\*/uidgid file  
 61 if \[ $UID -gt 199 \] && \[ "\`id -gn\`" = "\`id -un\`" \]; then  
 62     umask 002  
 63 else  
 64     umask 022  
 65 fi  
 66   
 67 for i in /etc/profile.d/\*.sh ; do  
 68     if \[ -r "$i" \]; then  
 69         if \[ "$\{-\#\*i\}" != "$-" \]; then  
 70             . "$i"  
 71         else  
 72             . "$i" >/dev/null 2>&1  
 73         fi  
 74     fi  
 75 done  
 76   
 77 unset i  
 78 unset -f pathmunge  
 79   
 80 TILERA\_ROOT=/opt/tilera/TileraMDE/tilegx  
 81 PATH=$TILERA\_ROOT/bin:$PATH  
 82 export TILERA\_ROOT PATH  
 83 \#export PATH=$PATH:/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin  
 84   
 85 \#svn  
 86   
 87 \#PATH=$PATH:/opt/svn/subversion-1.9.1/bin  
 88 \#export PATH  
 89   
 90 SVN\_HOME=/opt/subversion  
 91 export PATH=$PATH:$SVN\_HOME/bin  
 92   
 93   
 94 \# System wide environment and startup programs, for login setup  
 95 \# Function and aliases go in /etc/bashrc  
 96   
 97 ulimit -u 1000  
 98 ulimit -n 65535  
 99 ulimit -d unlimited  
100 ulimit -m unlimited  
101 ulimit -s unlimited  
102 ulimit -t unlimited  
103 ulimit -v unlimited