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- #!/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 $dir -type f -perm -a=x 2>/dev/null`
- if [ ! -z "$execlist" ]; then
- varlist=`nm $execlist | 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_SYSTEM_NSH_SYMTAB)"
- echo "const struct symtab_s CONFIG_SYSTEM_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_SYSTEM_NSH_SYMTAB)"
- echo "const int CONFIG_SYSTEM_NSH_SYMTAB_COUNTNAME = sizeof(CONFIG_SYSTEM_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
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