blob: c07e28a0f2c919a9bb170709d051b0b5b0870ff4 (
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#!/usr/bin/env bash
# Small script to test fpc to system error numbers
addtoerrno=0
errnonew=./errno-new.inc
temps="check_errno_list.sh check_reverse_errno_list.sh test-errno* $errnonew"
if [ "$1" == "clean" ] ; then
echo "Deleting $temps"
rm -f $temps
exit
fi
if [ "$1" == "verbose" ] ; then
verbose=1
echo "Being verbose"
shift
else
verbose=0
fi
if [ "$1" == "addall" ] ; then
addall=1
echo "Adding all entries to errno-new.inc"
shift
else
addall=0
fi
# Location of error number in system header
errno_headers="/usr/include/asm-generic/errno-base.h /usr/include/asm-generic/errno.h"
if [ "$1" != "" ] ; then
errno_include=$1
echo "Using $errno_include file"
else
errno_include=./errno.inc
fi
# Sustitution made to pass from fpc syscall number
# to system define
fpc_errno_prefix=ESysE
errno_prefix=E
# Test C file to grab all loaded headers
cat > test-errno.c <<EOF
#include <errno.h>
int
dummy ()
{
return 0;
}
EOF
# Default C compiler is gcc
# Can be overwritten by setting CC variable
# But I don't know if other compilers also generate
# .i files with --save-temps option
if [ "$CC" == "" ] ; then
CC=gcc
fi
# Use gcc with --save-temps option to create .i file
$CC --save-temps -c ./test-errno.c
# list of errno.h headers listed
errno_headers_CC=` sed -n "s:.*\"\(.*\.h\)\".*:\1:p" test-errno.i |sort | uniq`
echo "Headers found are \"$errno_headers_CC\""
if [ "$errno_headers_CC" != "" ] ; then
errno_headers="$errno_headers_CC"
fi
# You should only need to change the variables above
sed -n "s:^[[:space:]]*${fpc_errno_prefix}\\([_a-zA-Z0-9]*\\)[[:space:]]*=[[:space:]]*\\([0-9][0-9]*\\).*:check_errno_number ${errno_prefix}\1 \2:p" ${errno_include} > check_errno_list.sh
sed -n "s:#define[[:space:]]*${errno_prefix}\\([_a-zA-Z0-9]*\\)[[:space:]][[:space:]]*\\(-*[0-9A-Za-z_]*\\)[[:space:]]*\(.*\):check_reverse_errno_number ${fpc_errno_prefix}\1 \2 \"\3\":p" ${errno_headers} > check_reverse_errno_list.sh
function rpad {
word="$1"
while [ ${#word} -lt $2 ]; do
word="$word$3";
done;
echo "$word";
}
function compile_errno ()
{
errname=$1
errvalue=$2
# Test C file to grab all loaded headers
cat > test-errno.c <<EOF
#include <errno.h>
#include <stdio.h>
int
main ()
{
printf ("$errname=%d\n",$errname);
return 0;
}
EOF
$CC -o ./test-errno ./test-errno.c
compiledvalue=`./test-errno`
if [ "$compiledvalue" == "$errname=$errvalue" ] ; then
if [ $verbose -ne 0 ]; then
echo "GCC reports $compiledvalue OK"
fi
else
echo "GCC reports $compiledvalue, but $errvalue is expected"
fi
}
function check_errno_number ()
{
sys=$1
value=$2
if [ $verbose -ne 0 ] ; then
echo Testing $sys value $value
fi
# Remember value of this constant
eval ${sys}=${value}
compile_errno $sys $value
found=`sed -n "/#define[[:space:]][[:space:]]*${sys}[^A-Za-z0-9_]/p" ${errno_headers}`
val=`sed -n "s:#define[[:space:]][[:space:]]*${sys}[^A-Za-z0-9_][^A-Za-z0-9_]*\([0-9]*\).*:\1:p" ${errno_headers}`
extval=`sed -n "s:#define[[:space:]][[:space:]]*${sys}[^A-Za-z0-9_][^A-Za-z0-9_]*\([0-9A-Za-z_]*\).*:\1:p" ${errno_headers}`
if [ $verbose -ne 0 ] ; then
echo Test for $sys found \"${found}\" \"${value}\" \"${val}\"
fi
if [ "${val}" == "${value}" ] ; then
if [ $verbose -ne 0 ] ; then
echo ${sys} value ${val} is correct
fi
else
if [ $verbose -ne 0 ] ; then
echo "${sys} val=\"$val\", extval=\"$extval\""
fi
if [ "${val}" == "" ] ; then
foundvalue=`sed -n "/#define.*[^A-Za-z0-9_]${value}$/p" ${errno_headers}`
if [ "${foundvalue}" == "" ] ; then
foundvalue=`sed -n "s:\/\* ${value} is compa: ${value} is compa:p" ${errno_headers}`
fi
fi
if [ "$extval" != "$val" ] ; then
eval indirectval=\$$extval
echo "indirectval =\"$indirectval\" for \"$extval\""
if [ "$indirectval" != "$value" ] ; then
echo problem for ${sys} expected ${value}, line is \"${found}\", val found is \"${indirectval}\"
else
echo "$sys is defined as $extval which is $indirectval as expected $value"
fi
else
echo "problem for ${sys} expected ${value}, line is \"${found}\", val found is \"${val}\""
fi
fi
}
function write_errno_new_head ()
{
echo "{ File generated by $0" > $errnonew
uname_info=`uname -s -r -m`
echo " generated on \"$uname_info\" machine" >> $errnonew
echo "List of missing system error number found in" >> $errnonew
echo "$errno_headers" >> $errnonew
echo "}" >> $errnonew
}
function check_reverse_errno_number ()
{
errname=$1
errvalue=$2
rpaderrname=$(rpad $errname 20 " ")
if ! [[ "$errvalue" =~ ^[0-9]+$ ]] ; then
eval errvalue=\$$errvalue
fi
printf -v padd "%s = %4d" "$rpaderrname" $errvalue
found=`grep -i -w $1 ${errno_include}`
comment="$3"
comment=${comment##\/\*}
comment=${comment%%\*\/}
if [ "${found}" == "" ] ; then
echo "Error ${errname}, value ${errvalue}, not in ${errno_include} file"
if [ $addtoerrno -eq 0 ] ; then
addtoerrno=1
write_errno_new_head
fi
echo " $padd; { $comment }" >> $errnonew
else
if [ $addall -eq 1 ] ; then
if [ $addtoerrno -eq 0 ] ; then
addtoerrno=1
write_errno_new_head
fi
echo " $padd; { $comment }" >> $errnonew
fi
fi
}
set -f
echo "Checking all entries of ${errno_include} file"
source ./check_errno_list.sh
echo "Checking all defines from \"$errno_header\""
source ./check_reverse_errno_list.sh
if [ $addtoerrno -eq 1 ] ; then
echo " Missing error number found"
echo " New values are in \"$errnonew\"
echo You might want to add these lines to \"$errno_include\""
fi
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