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|
#!/usr/bin/env bash
# Script to test fpc to system syscall numbers
# Location of syscall header in system
syscall_header=/usr/include/syscall.h
fpc_sysnr=./sysnr.inc
i=0
for arg in $* ; do
let i++
echo "Handling arg $i, \"$arg\""
if [ "${arg//=}" != "$arg" ] ; then
echo "Evaluating $arg"
eval $arg
elif [ "$arg" == "-v" ] ; then
verbose=1
else
echo "arg not handled!"
fi
done
start_pwd=`pwd`
start_dir=`basename $start_pwd`
if [ -d "rtl" ] ; then
echo "Entering rtl directory"
cd rtl
fi
os=`uname -s | tr [:upper:] [:lower:] `
now_pwd=`pwd`
now_dir=`basename $now_pwd`
if [ -d "$os" ] ; then
echo "Entering $os directory"
cd $os
fi
case "$os" in
freebsd|openbsd|netbsd) c_syscall_header=sys/syscall.h;;
*) c_syscall_header=syscall.h;;
esac
if [ -z "$FPC" ] ; then
FPC=fpc
fi
if [ ! -f $fpc_sysnr ] ; then
cpu=`$FPC -iTP`
if [ "${cpu//sparc/}" != "$cpu" ] ; then
cpu=sparcgen
fi
fpc_sysnr=./$cpu/sysnr.inc
if [ ! -f "$fpc_sysnr" ] ; then
fpc_sysnr=`ls -1 ./${cpu}*/sysnr.inc| head -1`
fi
if [ ! -f "$fpc_sysnr" ] ; then
if [ "${cpu//sparc/}" != "$cpu" ] ; then
cpu=sparcgen
fi
fpc_sysnr=./$cpu/sysnr.inc
if [ ! -f "$fpc_sysnr" ] ; then
echo "sysnr.inc file not found, try again in rtl/$os directory"
exit
fi
fi
fi
if [ -f "$fpc_sysnr" ] ; then
echo "Checking $fpc_sysnr content for Free Pascal syscall numbers"
fpc_sysnr_dir=`dirname $fpc_sysnr `
sysnr_includes=`grep -o '{\$i *[a-z_A-Z0-9/.]*' $fpc_sysnr | sed 's:.*{\$i *:'$fpc_sysnr_dir/: `
if [ -n "$sysnr_includes" ] ; then
echo "Found $sysnr_includes include files"
fpc_sysnr="$fpc_sysnr $sysnr_includes"
fi
fi
if [ -z "$verbose" ] ; then
verbose=0
fi
os=`uname -s`
# Test C file to grab all loaded headers
cat > test-syscall.c <<EOF
#include <${c_syscall_header}>
int
main ()
{
return 0;
}
EOF
# Default C compiler is gcc
# Can be overwritten by setting CC variable
# But I don't know if other compilers also generate
# .i files with --save-temps option
if [ -z "$CC" ] ; then
CC=gcc
fi
cpu=`$FPC -iTP`
is_16=0
is_32=0
is_64=0
case $cpu in
aarch64) is_64=1;;
alpha) is_32=1;;
arm) is_32=1;;
avr) is_16=1;;
i386) is_32=1;;
i8086) is_16=1;;
ia64) is_64=1;;
jvm) is_32=1;;
m68k) is_32=1;;
mips) is_32=1;;
mipsel) is_32=1;;
powerpc) is_32=1;;
powerpc64) is_64=1;;
riscv32) is_32=1;;
riscv64) is_64=1;;
sparc) is_32=1;;
sparc64) is_64=1;;
vis) is_32=1;;
x86_64) is_64=1;;
esac
if [ $is_64 -eq 1 ] ; then
CC_OPT="$CC_OPT -m64"
CPUBITS=64
elif [ $is_32 -eq 1 ] ;then
CC_OPT="$CC_OPT -m32"
CPUBITS=32
elif [ $is_16 -eq 1 ] ; then
CPUBITS=16
else
CPUBITS=unknown
fi
# Use gcc with --save-temps option to create .i file
echo "Calling $CC $CC_OPT --save-temps -o test-syscall ./test-syscall.c"
$CC $CC_OPT --save-temps -o ./test-syscall ./test-syscall.c
res=$?
if [ $res -ne 0 ] ; then
echo "Call to $CC failed"
exit
else
rm -f ./test-syscall.c ./test-syscall
fi
# list of errno.h headers listed
syscall_headers=` sed -n "s:.*\"\(.*/.*\.h\)\".*:\1:p" test-syscall.i |sort | uniq`
rm -f test-syscall.*
echo "C syscall headers files found are \"$syscall_headers\""
if [ -n "$syscall_headers" ] ; then
syscall_header="$syscall_headers"
fi
fpc_syscall_prefix=syscall_nr_
if [ "$os" == "Linux" ] ; then
# On Linux system, system call number are defined indirectly
# with #define SYS_XXX __NR_XXX
# We look directly for the __NT_ version
syscall_prefix=__NR_
else
syscall_prefix=SYS_
fi
# You should only need to change the variables above
awkfile=preproc.awk
tmp_fpc_sysnr=tmp-sysnr-${cpu}.inc
c_syscall_source=test-syscall-${cpu}.c
# Test C file to grab all loaded headers
# must be called with -DSYS_MACRO=$sys
cat > $c_syscall_source <<EOF
#include <${c_syscall_header}>
#include <stdio.h>
int
main ()
{
printf ("%d\n", (int) SYS_MACRO);
return 0;
}
EOF
cat > $awkfile <<EOF
BEGIN {IGNORECASE = 1;
enable=1;
macro="";
incfile="";
cpu= "cpu" proc;
cpubits= "cpu" cpubits;
}
/\{\\\$i / { incfile=\$2;
print "Include file " incfile " found"; }
/\{\\\$ifdef / { macro=gensub("[^A-Za-z_0-9].*","","",\$2);
if ( (macro == cpu) || (macro == cpubits)) { enable=1;
print "// ifdef " macro " found and accepted at line " FNR;
} else {enable=0;
print "// ifdef " macro " found and rejected at line " FNR;
};
}
/\{\\\$ifndef / { macro=gensub("[^A-Za-z_0-9].*","","",\$2);
if ( (macro == cpu) || (macro == cpubits) ) { enable=0;
print "// ifndef " macro " found and rejected at line " FNR;
} else {enable=1;
print "// ifndef " macro " found and accepted at line " FNR;
};
}
/\{\\\$else/ { if (enable == 1) {enable=0;} else {enable = 1;}}
/.*/ { if (enable == 1) {
wholeline=\$0;
code=gensub("{.*}","","g",\$0);
code=gensub("[(][*].*[*][)]","","g",code);
comments=gensub(code,"","",\$0);
comments1=gensub(".*({.*}).*","\1","g",comments);
if (comments == comments1)
comments1="";
comments2=gensub(".*[(][*].*[*][)]).*","\1","g",comments);
if (comments == comments2)
comments2="";
comments3=gensub(".*//","","",comments);
if (comments == comments3)
comments3="";
all_comments= comments1 comments2 comments3;
if (all_comments != "")
print code "// " comments1 comments2 comments3 ;
else
print code;
}
}
/\{\\\$endif/ {enable=1;}
EOF
if [ -z "$AWK" ] ; then
AWK=`which gawk 2> /dev/null`
fi
if [ -z "$AWK" ] ; then
AWK=`which awk 2> /dev/null`
fi
if [ -n "$AWK" ] ; then
echo "Preprocessing ${fpc_sysnr} to $tmp_fpc_sysnr"
echo "$AWK -v proc=$cpu -v cpubits=$CPUBITS -f $awkfile ${fpc_sysnr} > $tmp_fpc_sysnr"
$AWK -v proc=$cpu -v cpubits=$CPUBITS -f $awkfile ${fpc_sysnr} > $tmp_fpc_sysnr
fpc_sysnr=$tmp_fpc_sysnr
fi
sed -n "s:^\(.*\)*[ \t]*${fpc_syscall_prefix}\\([_a-zA-Z0-9]*\\)[ \t]*=[ \t]*\\([0-9]*\\)\\(.*\\)$:check_c_syscall_number_from_fpc_rtl \2 \3 \"\1 \4\":p" $fpc_sysnr > check_sys_list.sh
sed -n "s:^.*#[[:space:]]*define[[:space:]]*${syscall_prefix}\\([_a-zA-Z0-9]*\\)[[:space:]]*\\([0-9]*\\)\\(.*\\)$:check_c_syscall_number_in_fpc_rtl \1 \2 \"\3\":p" ${syscall_header} > check_sys_list_reverse.sh
forward_count=0
forward_ok_count=0
forward_failure_count=0
function check_c_syscall_number_from_fpc_rtl ()
{
bare_sys=$1
sys=${syscall_prefix}$bare_sys
value=$2
comment="$3"
if [[ ! ( ( -n "$value" ) && ( $value -ge 0 ) ) ]] ; then
echo "Computing $2 value"
let value=$2
fi
obsolete=0
let forward_count++
if [[ "$value" =~ ^[0-9]+$ ]] ; then
eval $sys=\$$value
if [ $verbose -ne 0 ] ; then
echo "$sys is $value"
fi
else
eval $sys=$value
if [ $verbose -ne 0 ] ; then
echo "$sys set to \"${$sys}\" trough \"$value\""
fi
fi
# Remember this value for later
eval $sys=$value
echo -en "Testing $sys value $value \r"
found=`sed -n "/#[[:space:]]*define[[:space:]]*${sys}[^A-Za-z0-9_]/p" ${syscall_header}`
val=`sed -n "s:#[[:space:]]*define[[:space:]]*${sys}[^A-Za-z0-9_][^A-Za-z0-9_]*\([0-9]*\).*:\1:p" ${syscall_header}`
$CC $CC_OPT -DSYS_MACRO=${syscall_prefix}${bare_sys} -o ./test_c_${bare_sys} $c_syscall_source > ./test_${bare_sys}.comp-log 2>&1
C_COMP_RES=$?
if [ $C_COMP_RES -eq 0 ] ; then
CC_value=`./test_c_${bare_sys} `
if [ "$value" != "$CC_value" ] ; then
echo "$CC returns $CC_value, while $value is expected"
let forward_failure_count++
return
else
rm -f ./test_c_${bare_sys}
fi
rm -f ./test-${bare_sys}.comp-log
else
echo "$CC failed to compile code containing $sys syscall number $value"
echo "$CC $CC_OPT -DSYS_MACRO=${syscall_prefix}${bare_sys} -o ./test_c_${bare_sys} $c_syscall_source > ./test_${bare_sys}.comp-log 2>&1"
let forward_failure_count++
return
fi
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 ${val} is correct
fi
let forward_ok_count++
else
if [ -z "${val}" ] ; then
found=`sed -n ".*define[[:space:]].*[^A-Za-z0-9_][[:space:]]${value}$/p" ${syscall_header}`
if [ -z "${found}" ] ; then
found=`sed -n "s:\/\* ${value} is compa:/* ${value} is compa:p" ${syscall_header}`
if [ -n "$found" ] ; then
obsolete=1
fi
fi
fi
if [ -z "$found" ] ; then
found=`grep -n -w $value ${syscall_header}`
fi
if [ $obsolete -eq 1 ] ; then
echo Warning: ${bare_sys} expected ${value}, is obsolete line is \"${found}\"
else
echo Problem: ${bare_sys} expected ${value}, line is \"${found}\", val found is \"${val}\"
fi
let forward_failure_count++
fi
}
reverse_count=0
reverse_ok_count=0
reverse_failure_count=0
add_file=./add_missing_syscalls.inc
suggested_addition_count=0
echo "{ Generated by check_rtl_sys.sh script }" > $add_file
function check_c_syscall_number_in_fpc_rtl ()
{
bare_sys=$1
sys=${fpc_syscall_prefix}${bare_sys}
c_sys=${syscall_prefix}${bare_sys}
value=$2
comment="$3"
echo -en "Testing $sys value $value \r"
$CC $CC_OPT -DSYS_MACRO=${c_sys} -o ./test_c_${bare_sys} $c_syscall_source > ./test_${bare_sys}.comp-log 2>&1
C_COMP_RES=$?
if [ $C_COMP_RES -eq 0 ] ; then
rm ./test_${bare_sys}.comp-log
CC_value=`./test_c_${bare_sys} `
if [ "$value" != "$CC_value" ] ; then
echo "For sys=$sys, $CC returns $CC_value, while $value is expected"
let reverse_failure_count++
return
else
rm -f ./test_c_$bare_sys
fi
else
# if C syscall is not accepted do nothing
#echo "For sys=$sys, $CC compilation failed"
#cat ./test_${bare_sys}.comp-log
# let reverse_failure_count++
rm -f ./test_c_${bare_sys}
rm ./test_${bare_sys}.comp-log
return
fi
if [ $verbose -ne 0 ] ; then
echo "Full comment is \"$comment \""
fi
if [ "${comment/*\/\*/}" != "$comment" ] ; then
comment="${comment/*\/\*/}"
if [ $verbose -ne 0 ] ; then
echo "comment is \"$comment \""
fi
comment="${comment/\*\/*/}"
if [ $verbose -ne 0 ] ; then
echo "comment is \"$comment \""
fi
comment=`echo $comment | sed 's:^[[:space:]]*\(.*\)[[:space:]]*$:\1' `
if [ $verbose -ne 0 ] ; then
echo "comment is \"$comment \""
fi
fi
if [ $verbose -ne 0 ] ; then
echo Testing syscall header entry $sys value $value
fi
let reverse_count++
found=`sed -n "/.*${sys}/p" ${fpc_sysnr}`
val=`sed -n "s:.*${sys}[ \t]*=[ \t]*\([0-9]*\).*:\1:p" ${fpc_sysnr}`
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 ${val} is correct
fi
let reverse_ok_count++
else
if [ -z "${val}" ] ; then
found=`sed -n "/#[[:space:]]*define.*[^A-Za-z0-9_][[:space:]]*${value}([[:space:]]|$)/p" ${syscall_header}`
if [ -z "${found}" ] ; then
found=`sed -n "s:\/\*.*i[[:space:]]${value} is compa: ${value} is compa:p" ${syscall_header}`
fi
fi
echo "Problem: ${bare_sys} expected ${value}, line is \"${found}\", val found is \"${val}\""
if [ -n "$comment" ] ; then
echo " ${fpc_syscall_prefix}${bare_sys} = ${value}; { $comment }" >> $add_file
echo "Suggest adding: ${fpc_syscall_prefix}${bare_sys} = ${value}; { $comment }"
else
echo " ${fpc_syscall_prefix}${bare_sys} = ${value};" >> $add_file
echo "Suggest adding: ${fpc_syscall_prefix}${bare_sys} = ${value};"
fi
let suggested_addition_count++
let reverse_failure_count++
fi
}
# Sustitution made to pass from fpc syscall number
# to system define
set -f
echo "Checking values from \"${fpc_sysnr}\" in C syscall headers"
source ./check_sys_list.sh
echo "Checking if values in C syscall headers are in \"${fpc_sysnr}\""
source ./check_sys_list_reverse.sh
echo "Forward counts: OK=$forward_ok_count, failures=$forward_failure_count, total=$forward_count"
echo "Reverse counts: OK=$reverse_ok_count, failures=$reverse_failure_count, total=$reverse_count"
if [ $suggested_addition_count -gt 0 ] ; then
echo "Missing $suggested_addition_count syscall numbers in $add_file"
else
rm $add_file
fi
rm ./check_sys_list.sh ./check_sys_list_reverse.sh ./$awkfile
if [ -f "$tmp_fpc_sysnr" ] ; then
echo rm $tmp_fpc_sysnr
fi
|