nuttx/tools/mkallsyms.sh
chao.an d20bd62e08 libc/allsyms: Load all symbols for debugging
let the nuttx print out symbolic crash information and
symbolic stack backtraces. This increases the size of the nuttx
somewhat, as all symbols have to be loaded into the nuttx image.

Signed-off-by: chao.an <anchao@xiaomi.com>
2021-12-13 08:31:13 -06:00

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#!/usr/bin/env bash
############################################################################
# tools/mkallsyms.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: $0 <ELFBIN> <CROSSDEV>"
# Get the symbol table
# Extract all of the symbols from the ELF files and create a
# list of sorted, unique undefined variable names.
# Now output the symbol table as a structure in a C source file. All
# undefined symbols are declared as void* types. If the toolchain does
# any kind of checking for function vs. data objects, then this could
# failed
nm="${2}nm"
filt="${2}c++filt"
if [ -f "${1}" ];then
count=`${nm} -n ${1} | grep -E " [T|t] " | uniq | wc -l`
else
count=0
fi
echo "#include <nuttx/compiler.h>"
echo "#include <nuttx/symtab.h>"
echo ""
echo "const int g_nallsyms = ${count} + 2;"
echo "const struct symtab_s g_allsyms[${count} + 2] = "
echo "{"
# Add start address boundary
echo " { \"Unknown\", (FAR const void *)0x00000000 },"
if [ -f "${1}" ];then
${nm} -n ${1} | grep -E " [T|t] " | uniq | \
while read addr type name
do
echo " { \"`${filt} -p $name`\", (FAR const void *)0x$addr },"
done
fi
# Add end address boundary
echo " { \"Unknown\", (FAR const void *)0xffffffff },"
echo "};"