Add --suppress-rules argument for misra.py (#1259)
* Added ignore list - Added ignore list - Use argparse to parse arguments - Source formatting * misra.py changed argument name - Changed ` --ignore-rules` to ` --suppress-rules` * Resolved VERIFY option in misra.py Resolved broken broken logic in commit to add argparse. * edit suppression list Modified names Hide some arguments * command line help formatting * Revert removal of --no-summary argument * missing text rules no longer reported * VERIFY scope modified to global
This commit is contained in:
Kyle Chisholm
Daniel Marjamäki
parent
9f47d04af6
commit
6ce3571bdd
232
addons/misra.py
232
addons/misra.py
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@ -19,25 +19,38 @@ import cppcheckdata
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import sys
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import re
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import os
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import tempfile
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import subprocess
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import argparse
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ruleTexts = {}
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suppressRules = {}
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typeBits = {
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'CHAR': None,
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'SHORT': None,
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'INT': None,
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'LONG': None,
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'LONG_LONG': None,
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'POINTER': None
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}
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VERIFY = False
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SHOW_SUMMARY = True
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QUIET = False
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SHOW_SUMMARY = True
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VERIFY_EXPECTED = []
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VERIFY_ACTUAL = []
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VIOLATIONS = []
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def printStatus(*args, **kwargs):
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if not QUIET:
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print(*args, **kwargs)
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def reportError(location, num1, num2):
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if VERIFY:
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VERIFY_ACTUAL.append(str(location.linenr) + ':' + str(num1) + '.' + str(num2))
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elif num1 in suppressRules and num2 in suppressRules[num1]:
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# ignore error
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return
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else:
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num = num1 * 100 + num2
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id = 'misra-c2012-' + str(num1) + '.' + str(num2)
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@ -47,11 +60,11 @@ def reportError(location, num1, num2):
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errmsg = 'misra violation (use --rule-texts=<file> to get proper output) [' + id + ']'
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else:
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return
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errmsg = '[' + location.file + ':' + str(location.linenr) + '] (style): ' + errmsg + '\n'
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sys.stderr.write(errmsg)
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sys.stderr.write('[' + location.file + ':' + str(location.linenr) + '] (style): ' + errmsg + '\n')
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VIOLATIONS.append(errmsg)
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def simpleMatch(token, pattern):
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for p in pattern.split(' '):
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if not token or token.str != p:
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@ -59,6 +72,7 @@ def simpleMatch(token, pattern):
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token = token.next
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return True
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def rawlink(rawtoken):
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if rawtoken.str == '}':
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indent = 0
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@ -74,6 +88,7 @@ def rawlink(rawtoken):
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rawtoken = None
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return rawtoken
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KEYWORDS = {
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'auto',
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'break',
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@ -178,15 +193,15 @@ def bitsOfEssentialType(expr):
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if type is None:
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return 0
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if type == 'char':
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return CHAR_BIT
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return typeBits['CHAR']
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if type == 'short':
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return SHORT_BIT
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return typeBits['SHORT']
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if type == 'int':
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return INT_BIT
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return typeBits['INT']
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if type == 'long':
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return LONG_BIT
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return typeBits['LONG']
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if type == 'long long':
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return LONG_LONG_BIT
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return typeBits['LONG_LONG']
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return 0
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@ -356,7 +371,7 @@ def findRawLink(token):
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if indent <= 1:
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return token
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indent = indent - 1
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if forward == True:
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if forward is True:
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token = token.next
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else:
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token = token.previous
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@ -364,6 +379,7 @@ def findRawLink(token):
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# raw link not found
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return None
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def numberOfParentheses(tok1, tok2):
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while tok1 and tok1 != tok2:
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if tok1.str == '(' or tok1.str == ')':
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@ -399,7 +415,8 @@ def getArgumentsRecursive(tok, arguments):
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getArgumentsRecursive(tok.astOperand1, arguments)
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getArgumentsRecursive(tok.astOperand2, arguments)
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else:
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arguments.append(tok);
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arguments.append(tok)
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def getArguments(ftok):
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arguments = []
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@ -410,9 +427,11 @@ def getArguments(ftok):
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def isHexDigit(c):
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return (c >= '0' and c <= '9') or (c >= 'a' and c <= 'f') or (c >= 'A' and c >= 'F')
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def isOctalDigit(c):
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return (c >= '0' and c <= '7')
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def isNoReturnScope(tok):
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if tok is None or tok.str != '}':
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return False
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@ -429,12 +448,14 @@ def isNoReturnScope(tok):
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return True
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return False
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def misra_3_1(rawTokens):
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for token in rawTokens:
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if token.str.startswith('/*') or token.str.startswith('//'):
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if '//' in token.str[2:] or '/*' in token.str[2:]:
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reportError(token, 3, 1)
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def misra_4_1(rawTokens):
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for token in rawTokens:
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if token.str[0] != '"':
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@ -489,6 +510,7 @@ def misra_5_1(data):
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else:
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reportError(variable2.nameToken, 5, 1)
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def misra_5_2(data):
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scopeVars = {}
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for var in data.variables:
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@ -534,7 +556,6 @@ def misra_5_2(data):
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reportError(scopename2.bodyStart, 5, 2)
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def misra_5_3(data):
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enum = []
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scopeVars = {}
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@ -587,6 +608,7 @@ def misra_5_3(data):
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if (scope.className and scope.className[:31] == e[:31]):
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reportError(scope.bodyStart, 5, 3)
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def misra_5_4(data):
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macro = {}
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compile_name = re.compile(r'#define ([a-zA-Z0-9_]+)')
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@ -986,7 +1008,8 @@ def misra_12_2(data):
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def misra_12_3(data):
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for token in data.tokenlist:
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if token.str != ',' or token.scope.type == 'Enum' or token.scope.type == 'Class' or token.scope.type == 'Global':
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if token.str != ',' or token.scope.type == 'Enum' or \
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token.scope.type == 'Class' or token.scope.type == 'Global':
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continue
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if token.astParent and token.astParent.str in ['(', ',', '{']:
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continue
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@ -994,9 +1017,9 @@ def misra_12_3(data):
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def misra_12_4(data):
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if INT_BIT == 16:
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if typeBits['INT'] == 16:
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max_uint = 0xffff
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elif INT_BIT == 32:
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elif typeBits['INT'] == 32:
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max_uint = 0xffffffff
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else:
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return
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@ -1392,6 +1415,7 @@ def misra_20_5(data):
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if directive.str.startswith('#undef '):
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reportError(directive, 20, 5)
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def misra_20_13(data):
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for directive in data.directives:
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dir = directive.str
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@ -1399,9 +1423,11 @@ def misra_20_13(data):
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dir = dir[:dir.find(' ')]
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if dir.find('(') > 0:
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dir = dir[:dir.find('(')]
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if dir not in ['#define', '#elif', '#else', '#endif', '#error', '#if', '#ifdef', '#ifndef', '#include', '#pragma', '#undef', '#warning']:
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if dir not in ['#define', '#elif', '#else', '#endif', '#error', '#if', '#ifdef', '#ifndef', '#include',
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'#pragma', '#undef', '#warning']:
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reportError(directive, 20, 13)
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def misra_20_14(data):
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# stack for #if blocks. contains the #if directive until the corresponding #endif is seen.
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# the size increases when there are inner #if directives.
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@ -1422,6 +1448,7 @@ def misra_20_14(data):
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reportError(directive, 20, 14)
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ifStack.pop()
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def misra_21_3(data):
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for token in data.tokenlist:
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if isFunctionCall(token) and (token.astOperand1.str in {'malloc', 'calloc', 'realloc', 'free'}):
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@ -1483,6 +1510,26 @@ def misra_21_11(data):
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reportError(directive, 21, 11)
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def setSuppressionList(suppressionlist):
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num1 = 0
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num2 = 0
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global suppressRules
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rule_pattern = re.compile(r'([0-9]+).([0-9]+)')
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strlist = suppressionlist.split(",")
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# build ignore list
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suppressRules = {}
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for item in strlist:
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res = rule_pattern.match(item)
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if res:
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num1 = int(res.group(1))
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num2 = int(res.group(2))
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if num1 in suppressRules:
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suppressRules[num1][num2] = True
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else:
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suppressRules[num1] = {num2: True}
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def loadRuleTexts(filename):
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num1 = 0
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num2 = 0
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@ -1526,37 +1573,6 @@ def loadRuleTexts(filename):
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ruleTexts[num] = ruleTexts[num] + ' ' + line
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continue
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if len(sys.argv) == 1:
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print("""
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Syntax: misra.py [OPTIONS] <dumpfiles>
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OPTIONS:
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--rule-texts=<file> Load rule texts from plain text file.
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If you have the tool 'pdftotext' you might be able
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to generate this textfile with such command:
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$ pdftotext MISRA_C_2012.pdf MISRA_C_2012.txt
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Otherwise you can more or less copy/paste the chapter
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Appendix A Summary of guidelines
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from the MISRA pdf. You can buy the MISRA pdf from
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http://www.misra.org.uk/
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Format:
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<..arbitrary text..>
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Appendix A Summary of guidelines
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Rule 1.1
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Rule text for 1.1
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Rule 1.2
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Rule text for 1.2
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<...>
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--quiet Only print something when there is an error
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""")
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sys.exit(1)
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def generateTable():
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numberOfRules = {}
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@ -1593,10 +1609,11 @@ def generateTable():
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addon.append(res.group(1) + '.' + res.group(2))
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# rules handled by cppcheck
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cppcheck = ['1.3', '2.1', '2.2', '2.4', '2.6', '8.3', '12.2', '13.2', '13.6', '17.5', '18.1', '18.6', '20.6', '22.1', '22.2', '22.4', '22.6']
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cppcheck = ['1.3', '2.1', '2.2', '2.4', '2.6', '8.3', '12.2', '13.2', '13.6', '17.5', '18.1', '18.6',
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'20.6', '22.1', '22.2', '22.4', '22.6']
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# rules that can be checked with compilers
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compiler = ['1.1', '1.2']
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# compiler = ['1.1', '1.2']
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# print table
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for i1 in range(1, 23):
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@ -1611,44 +1628,19 @@ def generateTable():
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print(num[:8] + s)
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sys.exit(1)
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for arg in sys.argv[1:]:
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if arg == '-verify':
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VERIFY = True
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elif arg.startswith('--rule-texts='):
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filename = arg[13:]
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if not os.path.isfile(filename):
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print('Fatal error: file is not found: ' + filename)
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sys.exit(1)
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loadRuleTexts(filename)
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elif ".dump" in arg:
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continue
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elif arg == "-generate-table":
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generateTable()
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elif arg == "--no-summary":
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SHOW_SUMMARY = False
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elif arg == "--quiet":
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QUIET = True
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else:
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print('Fatal error: unhandled argument ' + arg)
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sys.exit(1)
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exitCode = 0
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for arg in sys.argv[1:]:
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if not arg.endswith('.dump'):
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continue
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def parseDump(dumpfile):
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data = cppcheckdata.parsedump(arg)
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data = cppcheckdata.parsedump(dumpfile)
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CHAR_BIT = data.platform.char_bit
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SHORT_BIT = data.platform.short_bit
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INT_BIT = data.platform.int_bit
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LONG_BIT = data.platform.long_bit
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LONG_LONG_BIT = data.platform.long_long_bit
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POINTER_BIT = data.platform.pointer_bit
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typeBits['CHAR'] = data.platform.char_bit
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typeBits['SHORT'] = data.platform.short_bit
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typeBits['INT'] = data.platform.int_bit
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typeBits['LONG'] = data.platform.long_bit
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typeBits['LONG_LONG'] = data.platform.long_long_bit
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typeBits['POINTER'] = data.platform.pointer_bit
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if VERIFY:
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VERIFY_ACTUAL = []
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VERIFY_EXPECTED = []
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for tok in data.rawTokens:
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if tok.str.startswith('//') and 'TODO' not in tok.str:
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compiled = re.compile(r'[0-9]+\.[0-9]+')
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@ -1656,14 +1648,14 @@ for arg in sys.argv[1:]:
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if compiled.match(word):
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VERIFY_EXPECTED.append(str(tok.linenr) + ':' + word)
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else:
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printStatus('Checking ' + arg + '...')
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printStatus('Checking ' + dumpfile + '...')
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cfgNumber = 0
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for cfg in data.configurations:
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cfgNumber = cfgNumber + 1
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if len(data.configurations) > 1:
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printStatus('Checking ' + arg + ', config "' + cfg.name + '"...')
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printStatus('Checking ' + dumpfile + ', config "' + cfg.name + '"...')
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if cfgNumber == 1:
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misra_3_1(data.rawTokens)
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@ -1747,8 +1739,9 @@ for arg in sys.argv[1:]:
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misra_21_10(cfg)
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misra_21_11(cfg)
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# 22.4 is already covered by Cppcheck writeReadOnlyFile
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if VERIFY:
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exitCode = 0
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if VERIFY:
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for expected in VERIFY_EXPECTED:
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if expected not in VERIFY_ACTUAL:
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print('Expected but not seen: ' + expected)
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@ -1757,11 +1750,74 @@ for arg in sys.argv[1:]:
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if actual not in VERIFY_EXPECTED:
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print('Not expected: ' + actual)
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exitCode = 1
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if not VERIFY:
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else:
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if len(VIOLATIONS) > 0:
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if SHOW_SUMMARY:
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print("\nRule violations found: %d\n" % (len(VIOLATIONS)))
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exitCode = 1
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sys.exit(exitCode)
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RULE_TEXTS_HELP = '''Path to text file of MISRA rules
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If you have the tool 'pdftotext' you might be able
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to generate this textfile with such command:
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pdftotext MISRA_C_2012.pdf MISRA_C_2012.txt
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Otherwise you can more or less copy/paste the chapter
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Appendix A Summary of guidelines
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from the MISRA pdf. You can buy the MISRA pdf from
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http://www.misra.org.uk/
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Format:
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<..arbitrary text..>
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Appendix A Summary of guidelines
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Rule 1.1
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Rule text for 1.1
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Rule 1.2
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Rule text for 1.2
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<...>
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'''
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SUPPRESS_RULES_HELP = '''MISRA rules to suppress (comma-separated)
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For example, if you'd like to suppress rules 15.1, 11.3,
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and 20.13, run:
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python misra.py --suppress-rules 15.1,11.3,20.13 ...
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'''
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parser = argparse.ArgumentParser(formatter_class=argparse.RawTextHelpFormatter)
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parser.add_argument("--rule-texts", type=str, help=RULE_TEXTS_HELP)
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parser.add_argument("--suppress-rules", type=str, help=SUPPRESS_RULES_HELP)
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parser.add_argument("--quiet", help="Only print something when there is an error", action="store_true")
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parser.add_argument("--no-summary", help="Hide summary of violations", action="store_true")
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parser.add_argument("-verify", help=argparse.SUPPRESS, action="store_true")
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parser.add_argument("-generate-table", help=argparse.SUPPRESS, action="store_true")
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parser.add_argument("file", help="Path of dump file from cppcheck")
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args = parser.parse_args()
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if args.generate_table:
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generateTable()
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else:
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if args.verify:
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VERIFY = True
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if args.rule_texts:
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filename = os.path.normpath(args.rule_texts)
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if not os.path.isfile(filename):
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print('Fatal error: file is not found: ' + filename)
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sys.exit(1)
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loadRuleTexts(filename)
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if args.suppress_rules:
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setSuppressionList(args.suppress_rules)
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if args.quiet:
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QUIET = True
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if args.no_summary:
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SHOW_SUMMARY = False
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if args.file:
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parseDump(args.file)
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Reference in New Issue