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#!/bin/bash
## \file
# \brief Generate the text files of the symbol size table from the readelf
# output. The values are separated by white spaces. Only 3 fields are
# extracted in order: the size of symbol in decimal, the type of the symbol
# and the name of the symbol. The text files can be imported into spreadsheet
# or document files to make the tables a printable form.
# The input prefix
ELF_PREFIX='./builds/proone.bin/readelf'
# The output prefix
OUT_PREFIX='./builds/proone.bin/symsize'
# The number of threads on the host
NPROC=$(nproc)
# The number of concurrent processes
NB_PROC=0
##
# \brief Call the script that actually does the job
# \param 1 input file
# \param 2 output file
call_extsymsize () {
./scripts/extsymsize.sh < "$1" | sort -nr > "$2"
}
# Process each readelf output file
for f in "$ELF_PREFIX".*; do
# Extract the arch from the file name
# The script assumes that the "middle name" is the name of the arch
suffix=$(echo "$f" | egrep -o '(\.\w+\.\w+)$')
if [ $? -ne 0 ]; then
echo "$f: invalid suffix" >&2
exit 1
fi
# Die on error: while running \c extsymsize.sh or in the process of
# launching it
set -e
out="$OUT_PREFIX""$suffix"
# Limit the number of processses running concurrently to the number of
# threads on the host.
if [ $NB_PROC -lt $NPROC ]; then
call_extsymsize "$f" "$out" &
let 'NB_PROC += 1'
else
wait
call_extsymsize "$f" "$out" &
fi
set +e
done
# Reap processes
for (( i = 0; i < NB_PROC; i += 1 )); do
wait
done
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