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      1 #!/bin/sh
      2 #
      3 #   Copyright (C) 2021-2025 Free Software Foundation, Inc.
      4 #
      5 # This file is free software; you can redistribute it and/or modify
      6 # it under the terms of the GNU General Public License as published by
      7 # the Free Software Foundation; either version 3 of the License, or
      8 # (at your option) any later version.
      9 #
     10 # This program is distributed in the hope that it will be useful,
     11 # but WITHOUT ANY WARRANTY; without even the implied warranty of
     12 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
     13 # GNU General Public License for more details.
     14 #
     15 # You should have received a copy of the GNU General Public License
     16 # along with this program; see the file COPYING3.  If not see
     17 # <http://www.gnu.org/licenses/>.
     18 
     19 #
     20 # CHK_LIBC_OBJ  -- a script to scan the .o's in an output directory,
     21 #	which is one of ../{intel-S2,sparc-S2,intel-Linux,sparc-Linux}
     22 #	
     23 #	usage: cd to the output directory, and invoke ../src/CHK_LIBC_OBJ
     24 
     25 
     26 check_obj() {
     27     logF="nm.`basename $1`.log"
     28     if [ `uname` = 'Linux' ]; then 
     29         nm $1 | grep -v GLIBC_ > ${logF}
     30     else
     31         nm $1 > ${logF}
     32     fi
     33 
     34     FUNC_LIST="strcpy strlcpy strncpy strcat strlcat strncat strncmp strlen \
     35                strerror strchr strrchr strpbrk strstr strtok strtok_r \
     36                printf fprintf sprintf snprintf asprintf  wsprintf \
     37                vprintf vfprintf vsprintf vsnprintf vasprintf \
     38                memset memcmp memcpy strtol strtoll strtoul strtoull \
     39                getcpuid calloc malloc free strdup"
     40     res=0
     41     echo " -- Checking Object file '$1' for functions from libc"
     42     for j in `echo ${FUNC_LIST}` ; do
     43         grep -w ${j} ${logF} | grep UNDEF> grep.log 2>&1
     44         if [ $? -eq 0 ]; then
     45             grep -w ${j} ${logF}
     46             res=1
     47         fi
     48     done
     49     return ${res}
     50 }
     51 
     52 STATUS=0
     53 
     54 for i in *.o ; do
     55     echo ""
     56     check_obj ${i}
     57     res=$?
     58     if [ ${res} -eq 0 ]; then
     59 	echo "Object file ${i} does not reference functions in libc"
     60     else
     61 	echo "======Object file: ${i} DOES reference functions in libc"
     62     fi
     63     if [ ${STATUS} -eq 0 ]; then 
     64 	STATUS=${res}
     65     fi
     66 done
     67 
     68 for i in *.so ; do
     69     echo ""
     70     check_obj ${i}
     71     res=$?
     72     if [ ${res} -eq 0 ]; then
     73 	echo "Object file ${i} does not reference functions in libc"
     74     else
     75 	echo "======Object file: ${i} DOES reference functions in libc"
     76     fi
     77     if [ ${STATUS} -eq 0 ]; then 
     78 	STATUS=${res}
     79     fi
     80 done
     81 
     82 exit $STATUS
     83