| #!/usr/bin/env bash |
| ############################################################################ |
| # apps/tools/mksymtab.sh |
| # |
| # Licensed to the Apache Software Foundation (ASF) under one or more |
| # contributor license agreements. See the NOTICE file distributed with |
| # this work for additional information regarding copyright ownership. The |
| # ASF licenses this file to you under the Apache License, Version 2.0 (the |
| # "License"); you may not use this file except in compliance with the |
| # License. You may obtain a copy of the License at |
| # |
| # http://www.apache.org/licenses/LICENSE-2.0 |
| # |
| # Unless required by applicable law or agreed to in writing, software |
| # distributed under the License is distributed on an "AS IS" BASIS, WITHOUT |
| # WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the |
| # License for the specific language governing permissions and limitations |
| # under the License. |
| # |
| ############################################################################ |
| |
| export LC_ALL=C |
| |
| usage="Usage: $0 <imagedirpath> [symtabprefix]" |
| |
| # Check for the required directory path |
| |
| dir=$1 |
| if [ -z "$dir" ]; then |
| echo "ERROR: Missing <imagedirpath>" |
| echo "" |
| echo $usage |
| exit 1 |
| fi |
| |
| # Get the symbol table prefix |
| |
| prefix=$2 |
| |
| # Extract all of the undefined symbols from the ELF files and create a |
| # list of sorted, unique undefined variable names. |
| |
| varlist=`find $dir -name *-thunk.S 2>/dev/null | xargs grep -h asciz | cut -f3 | sort | uniq` |
| if [ -z "$varlist" ]; then |
| execlist=`find $dir -type f 2>/dev/null` |
| if [ ! -z "$execlist" ]; then |
| varlist=`nm $execlist 2>/dev/null | fgrep ' U ' | sed -e "s/^[ ]*//g" | cut -d' ' -f2 | sort | uniq` |
| fi |
| fi |
| |
| # Now output the symbol table as a structure in a C source file. All |
| # undefined symbols are declared as void* types. If the toolchain does |
| # any kind of checking for function vs. data objects, then this could |
| # failed |
| |
| echo "#include <nuttx/compiler.h>" |
| echo "#include <nuttx/symtab.h>" |
| echo "" |
| |
| for string in $varlist; do |
| var=`echo $string | sed -e "s/\"//g"` |
| echo "extern void *${var};" |
| done |
| |
| echo "" |
| if [ -z "$prefix" ]; then |
| echo "#if defined(CONFIG_EXECFUNCS_HAVE_SYMTAB)" |
| echo "const struct symtab_s CONFIG_EXECFUNCS_SYMTAB_ARRAY[] = " |
| echo "#elif defined(CONFIG_NSH_SYMTAB)" |
| echo "const struct symtab_s CONFIG_NSH_SYMTAB_ARRAYNAME[] = " |
| echo "#else" |
| echo "const struct symtab_s dummy_symtab[] = " |
| echo "#endif" |
| else |
| echo "const struct symtab_s ${prefix}_exports[] = " |
| fi |
| echo "{" |
| |
| for string in $varlist; do |
| var=`echo $string | sed -e "s/\"//g"` |
| echo " {\"${var}\", &${var}}," |
| done |
| |
| echo "};" |
| echo "" |
| if [ -z "$prefix" ]; then |
| echo "#if defined(CONFIG_EXECFUNCS_HAVE_SYMTAB)" |
| echo "const int CONFIG_EXECFUNCS_NSYMBOLS_VAR = sizeof(CONFIG_EXECFUNCS_SYMTAB_ARRAY) / sizeof(struct symtab_s);" |
| echo "#elif defined(CONFIG_NSH_SYMTAB)" |
| echo "const int CONFIG_NSH_SYMTAB_COUNTNAME = sizeof(CONFIG_NSH_SYMTAB_ARRAYNAME) / sizeof(struct symtab_s);" |
| echo "#else" |
| echo "const int dummy_nsymtabs = sizeof(dummy_symtab) / sizeof(struct symtab_s);" |
| echo "#endif" |
| else |
| echo "const int ${prefix}_nexports = sizeof(${prefix}_exports) / sizeof(struct symtab_s);" |
| fi |