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authorAndreas Baumann <mail@andreasbaumann.cc>2018-03-24 19:53:56 +0100
committerAndreas Baumann <mail@andreasbaumann.cc>2018-03-24 19:53:56 +0100
commit14d0abcfea146fbb5e4254d7b592d4666c8b8c44 (patch)
tree85455c27fac343e33c586ac3207e79bd5c50ef69 /bin/opcode
parentc30de005f885202f24929bd4e3d3f5c885efbc0a (diff)
reverted opcode to original (no shellcheck)
added a -d option to check-opcodes renamed pentium4 to pentium3 (because without SSE2 this is the architecture we are aiming at) be more tolerant on failing readelf and objdump handle binaries too
Diffstat (limited to 'bin/opcode')
-rwxr-xr-xbin/opcode46
1 files changed, 22 insertions, 24 deletions
diff --git a/bin/opcode b/bin/opcode
index 8840e97..544c763 100755
--- a/bin/opcode
+++ b/bin/opcode
@@ -25,8 +25,8 @@
# * Remove all line in Opcode_ARM_THUMB
# return values
-# shellcheck disable=SC2001,SC2034,SC2086
+# return values
EXIT_FOUND=0
EXIT_NOT_FOUND=1
EXIT_USAGE=2
@@ -45,7 +45,6 @@ Line_Numbers=false
Leading_Context=0
Trailing_Context=0
-# shellcheck source=lib/opcode_list
source "${0%/*}/../lib/opcode_list" # include opcodes from a separate file
# GAS-specific opcodes (unofficial names) belonging to the x64 instruction set.
@@ -166,7 +165,7 @@ usage() {
echo "The script uses Intel opcode syntax. When used in conjunction with objdump, \`-M intel' must be set in order to prevent opcode translation using AT&T syntax."
echo
echo "BE AWARE THAT THE LIST OF KNOWN INSTRUCTIONS OR INSTRUCTIONS SUPPORTED BY PARTICULAR ARCHITECTURES (ESPECIALLY AMD'S) IS ONLY TENTATIVE AND MAY CONTAIN MISTAKES!"
- kill -TRAP "$TOP_PID"
+ kill -TRAP $TOP_PID
}
list_contains() { # Returns 0 if $2 is in array $1, 1 otherwise.
@@ -179,25 +178,25 @@ list_contains() { # Returns 0 if $2 is in array $1, 1 otherwise.
build_instruction_set() { # $1 = enum { Arch, InstSet }, $2 = architecture or instruction set as obtained using -L or -l, $3 = "architecture"/"instruction set" to be used in error message
local e
- list_contains "$(eval echo \\\$${1}List)" "$2" || (echo "$2 is not a valid $3."; usage) # Test if the architecture/instruction set is valid.
- if [ -n "$(eval echo \\\$${1}_${2})" ]; then # Add the instruction set(s) if any.
- for e in $(eval echo \\\$${1}_${2}); do # Skip duplicates.
+ list_contains "`eval echo \\\$${1}List`" "$2" || (echo "$2 is not a valid $3."; usage) # Test if the architecture/instruction set is valid.
+ if [ -n "`eval echo \\\$${1}_${2}`" ]; then # Add the instruction set(s) if any.
+ for e in `eval echo \\\$${1}_${2}`; do # Skip duplicates.
list_contains "$InstSet_Base" $e || InstSet_Base="$e $InstSet_Base"
done
fi
if [ $Recursive = true ]; then
- for a in $(eval echo \\\$${1}Dep_$2); do
+ for a in `eval echo \\\$${1}Dep_$2`; do
build_instruction_set $1 $a "$3"
done
fi
- InstSet_Base=$(echo $InstSet_Base | sed 's/$ *//') # Remove trailing space.
+ InstSet_Base="`echo $InstSet_Base | sed 's/$ *//'`" # Remove trailing space.
}
-trap 'exit $EXIT_USAGE' TRAP # Allow usage() function to abort script execution.
+trap "exit $EXIT_USAGE" TRAP # Allow usage() function to abort script execution.
export TOP_PID=$$ # PID of executing process.
# Parse command line arguments.
-while getopts ":ra:s:LliIcf:d:D:CvVm:nB:A:h" o; do
+while getopts ":ra:s:LliIcf:Fd:D:CvVm:nB:A:h" o; do
case $o in
r) Recursive=true ;;
a) build_instruction_set Arch "$OPTARG" "architecture" ;;
@@ -209,19 +208,19 @@ while getopts ":ra:s:LliIcf:d:D:CvVm:nB:A:h" o; do
echo $InstSet_Base
exit $EXIT_USAGE
else
- echo -e "No instruction set or architecture set.\\n"
+ echo -e "No instruction set or architecture set.\n"
usage
fi
;;
I)
if [ -n "$InstSet_Base" ]; then
for s in $InstSet_Base; do
- echo -ne "\\e[31;1m$s:\\e[0m "
+ echo -ne "\e[31;1m$s:\e[0m "
eval echo "\$Opcode_$s"
done
exit $EXIT_USAGE
else
- echo -e "No instruction set or architecture set.\\n"
+ echo -e "No instruction set or architecture set.\n"
usage
fi
;;
@@ -230,12 +229,12 @@ while getopts ":ra:s:LliIcf:d:D:CvVm:nB:A:h" o; do
# Unlike architectures, instruction sets are disjoint.
Found=false
for s in $InstSetList; do
- for b in $(eval echo \\\$InstSet_$s); do
+ for b in `eval echo \\\$InstSet_$s`; do
Found_In_Base=false
- for i in $(eval echo \\\$Opcode_$b); do
+ for i in `eval echo \\\$Opcode_$b`; do
if [[ "$i" =~ ^$OPTARG$ ]]; then
- $Found_In_Base || echo -ne "Instruction set \\e[33;1m$s\\e[0m (base instruction set \\e[32;1m$b\\e[0m):"
- echo -ne " \\e[31;1m$i\\e[0m"
+ $Found_In_Base || echo -ne "Instruction set \e[33;1m$s\e[0m (base instruction set \e[32;1m$b\e[0m):"
+ echo -ne " \e[31;1m$i\e[0m"
Found_In_Base=true
Found=true
fi
@@ -244,7 +243,7 @@ while getopts ":ra:s:LliIcf:d:D:CvVm:nB:A:h" o; do
done
done
if [ $Found = false ]; then
- echo -e "Operation code \\e[31;1m$OPTARG\\e[0m has not been found in the database of known instructions." \
+ echo -e "Operation code \e[31;1m$OPTARG\e[0m has not been found in the database of known instructions." \
"Perhaps it is translated using other than Intel syntax. If obtained from objdump, check if the \`-M intel' flag is set." \
"Be aware that the search is case sensitive by default (you may use the -C flag, otherwise only lower case opcodes are accepted)."
exit $EXIT_NOT_FOUND
@@ -263,13 +262,13 @@ while getopts ":ra:s:LliIcf:d:D:CvVm:nB:A:h" o; do
A) Trailing_Context=$OPTARG ;;
h) usage ;;
\?)
- echo -e "Unknown option: -$OPTARG\\n"
+ echo -e "Unknown option: -$OPTARG\n"
usage
;;
esac
done
shift $((OPTIND-1))
-[ -n "$1" ] && echo -e "Unknown command line parameter: $1\\n" && usage
+[ -n "$1" ] && echo -e "Unknown command line parameter: $1\n" && usage
[ -z "$InstSet_Base" ] && usage
# Create list of grep parameters.
@@ -283,13 +282,12 @@ Grep_Params="--color=auto -B $Leading_Context -A $Trailing_Context"
# Build regular expression for use in grep.
RegEx=""
for s in $InstSet_Base; do
- eval 'RegEx="$RegEx $Opcode_'"$s"'"'
+ eval RegEx=\"$RegEx \$Opcode_$s\"
done
# Add leading and trailing opcode separators to prevent false positives.
-RegEx="$Leading_Separator$(echo $RegEx | sed "s/ /$(echo "$Trailing_Separator"|sed 's/[\/&]/\\\&/g')|$(echo "$Leading_Separator"|sed 's/[\/&]/\\\&/g')/g")$Trailing_Separator"
+RegEx="$Leading_Separator`echo $RegEx | sed "s/ /$(echo "$Trailing_Separator"|sed 's/[\/&]/\\\&/g')|$(echo "$Leading_Separator"|sed 's/[\/&]/\\\&/g')/g"`$Trailing_Separator"
-[ $Verbose = true ] && [ $Count_Matching = false ] && RegEx="$RegEx|\$"
+[ $Verbose = true -a $Count_Matching = false ] && RegEx="$RegEx|\$"
-# shellcheck disable=SC2086
# The actual search.
grep $Grep_Params -E "$RegEx" && exit $EXIT_FOUND || exit $EXIT_NOT_FOUND