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misra; implement rule 8.6

This commit is contained in:
Daniel Marjamäki 2021-07-17 21:24:53 +02:00
parent aa910d3c38
commit 77d8b714ea
3 changed files with 30 additions and 7 deletions
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29
addons/misra.py
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@ -1240,7 +1240,9 @@ class MisraChecker:
internal_identifiers.append(identifier(var.nameToken))
else:
names.append(var.nameToken.str)
external_identifiers.append(identifier(var.nameToken))
i = identifier(var.nameToken)
i['decl'] = var.isExtern
external_identifiers.append(i)
for func in cfg.functions:
if func.tokenDef is None:
@ -1248,7 +1250,9 @@ class MisraChecker:
if func.isStatic:
internal_identifiers.append(identifier(func.tokenDef))
else:
external_identifiers.append(identifier(func.tokenDef))
i = identifier(func.tokenDef)
i['decl'] = func.token is None
external_identifiers.append(i)
cppcheckdata.reportSummary(dumpfile, 'MisraExternalIdentifiers', external_identifiers)
cppcheckdata.reportSummary(dumpfile, 'MisraInternalIdentifiers', internal_identifiers)
@ -3605,7 +3609,8 @@ class MisraChecker:
all_typedef_info = []
all_tagname_info = []
all_macro_info = []
all_external_identifiers = {}
all_external_identifiers_decl = {}
all_external_identifiers_def = {}
all_internal_identifiers = {}
all_local_identifiers = {}
@ -3669,10 +3674,18 @@ class MisraChecker:
if summary_type == 'MisraExternalIdentifiers':
for s in summary_data:
if s['name'] in all_external_identifiers and is_different_location(s, all_external_identifiers[s['name']]):
self.reportError(Location(s), 8, 5)
self.reportError(Location(all_external_identifiers[s['name']]), 8, 5)
all_external_identifiers[s['name']] = s
is_declaration = s['decl']
if is_declaration:
all_external_identifiers = all_external_identifiers_decl
else:
all_external_identifiers = all_external_identifiers_def
name = s['name']
if name in all_external_identifiers and is_different_location(s, all_external_identifiers[name]):
num = 5 if is_declaration else 6
self.reportError(Location(s), 8, num)
self.reportError(Location(all_external_identifiers[name]), 8, num)
all_external_identifiers[name] = s
if summary_type == 'MisraInternalIdentifiers':
for s in summary_data:
@ -3697,6 +3710,8 @@ class MisraChecker:
if not m['used']:
self.reportError(Location(m), 2, 5)
all_external_identifiers = all_external_identifiers_decl
all_external_identifiers.update(all_external_identifiers_def)
for name, external_identifier in all_external_identifiers.items():
internal_identifier = all_internal_identifiers.get(name)
if internal_identifier:

4
addons/test/misra/misra-ctu-1-test.c
View File

@ -33,3 +33,7 @@ static void misra_5_8_foo(void) {}
// cppcheck-suppress misra-c2012-8.4
// cppcheck-suppress misra-c2012-8.5
extern int misra_8_5;
// cppcheck-suppress misra-c2012-8.6
int32_t misra_8_6 = 1;

4
addons/test/misra/misra-ctu-2-test.c
View File

@ -34,3 +34,7 @@ static void misra_5_8_foo(void) {}
// cppcheck-suppress misra-c2012-8.4
// cppcheck-suppress misra-c2012-8.5
extern int misra_8_5;
// cppcheck-suppress misra-c2012-8.6
int32_t misra_8_6 = 2;