Lenny Maiorani
5066858bcd
Removing strncpy() checking in CString checker for now. Some significant changes need to be made to properly support modeling of it since it potentially leaves strings non-null terminated.
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llvm-svn: 130758
2011-05-03 16:34:26 +00:00
Lenny Maiorani
0b510279c6
Implements strncasecmp() checker and simplifies some of the logic around creating substrings if necessary and calling the appropriate StringRef::compare/compare_lower().
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llvm-svn: 130708
2011-05-02 19:05:49 +00:00
Lenny Maiorani
4af23c8159
Implements strcasecmp() checker in Static Analyzer.
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llvm-svn: 130398
2011-04-28 15:09:11 +00:00
Argyrios Kyrtzidis
a9b630e4d7
Emit a -Wnull-dereference warning for "*null" not just "*null = something". Addresses rdar://9269271.
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llvm-svn: 130207
2011-04-26 17:41:22 +00:00
Lenny Maiorani
e553e40467
Implements the strncmp() checker just like the strcmp() checker, but with bounds. Requires LLVM svn r129582.
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llvm-svn: 130161
2011-04-25 22:21:00 +00:00
Chris Lattner
57540c5be0
fix a bunch of comment typos found by codespell. Patch by
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Luis Felipe Strano Moraes!
llvm-svn: 129559
2011-04-15 05:22:18 +00:00
Lenny Maiorani
f3539ad5c7
This patch adds modeling of strcmp() to the CString checker. Validates inputs are not NULL and are real C strings, then does the comparison and binds the proper return value. Unit tests included.
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llvm-svn: 129364
2011-04-12 17:08:43 +00:00
Lenny Maiorani
467dbd5f13
strcat() and strncat() model additions to CStringChecker.
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Validates inputs are not NULL, checks for overlapping strings, concatenates the strings checking for buffer overflow, sets the length of the destination string to the sum of the s1 length and the s2 length, binds the return value to the s1 value.
llvm-svn: 129215
2011-04-09 15:12:58 +00:00
Ted Kremenek
49c79790de
Rework checker "packages" and groups to be more hierarchical.
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llvm-svn: 128187
2011-03-24 00:28:47 +00:00
Carl Norum
58d489fc6e
Fix tests to account for new warning "expected ';' at end of declaration list". Sorry, folks!
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llvm-svn: 127188
2011-03-07 22:57:45 +00:00
Argyrios Kyrtzidis
9eb02dfa89
[analyzer] Remove '-analyzer-check-objc-mem' flag, the nominee for best misnomer award.
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llvm-svn: 126676
2011-02-28 19:49:42 +00:00
Argyrios Kyrtzidis
2c49ec7f1d
[analyzer] Migrate NSErrorChecker and DereferenceChecker to CheckerV2.
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They cooperate in that NSErrorChecker listens for ImplicitNullDerefEvent events that
DereferenceChecker can dispatch.
ImplicitNullDerefEvent is when we dereferenced a location that may be null.
llvm-svn: 126659
2011-02-28 17:36:18 +00:00
Argyrios Kyrtzidis
c08d89e6c2
Allow passing a list of comma separated checker names to -analyzer-checker, e.g:
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-analyzer-checker=cocoa,unix
llvm-svn: 126372
2011-02-24 08:42:20 +00:00
Ted Kremenek
fb1a79af7a
Add CStringChecker support for strncpy. Patch by Lenny Maiorani!
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llvm-svn: 126188
2011-02-22 04:58:34 +00:00
Ted Kremenek
280a01fa1b
Add CStringChecker support for strnlen. Patch by Lenny Maiorani!
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llvm-svn: 126187
2011-02-22 04:55:05 +00:00
Argyrios Kyrtzidis
2d3905ffac
[analyzer] Use the new registration mechanism on some of the experimental checks. These are:
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CStringChecker
ChrootChecker
MallocChecker
PthreadLockChecker
StreamChecker
UnreachableCodeChecker
MallocChecker creates implicit dependencies between checkers and needs to be handled differently.
llvm-svn: 125598
2011-02-15 21:25:03 +00:00
Jordy Rose
722f558f07
Model the effects of strcpy() and stpcpy() in CStringChecker. Other changes:
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- Fix memcpy() and friends to actually invalidate the destination buffer.
- Emit a different message for out-of-bounds buffer accesses if the buffer is being written to.
- When conjuring symbols, let ValueManager figure out the type.
llvm-svn: 111120
2010-08-16 07:51:42 +00:00
Jordy Rose
2a2e21c902
Update CStringChecker to take advantage of the new metadata symbols and region change callback. Now does basic tracking of string length for general regions. Currently this is still only used for modeling strlen().
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llvm-svn: 111081
2010-08-14 21:02:52 +00:00
Tom Care
29a6250bf0
Added some false positive checking to UnreachableCodeChecker
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- Allowed reporting of dead macros
- Added path walking function to search for false positives in conditional statements
- Updated some affected tests
- Added some false positive test cases
llvm-svn: 109561
2010-07-27 23:30:21 +00:00
Jordy Rose
b052e8f436
Groundwork for C string length tracking. Currently only handles the length of constant string literals, which is not too helpful, and only calls to strlen() are checked.
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llvm-svn: 109480
2010-07-27 01:37:31 +00:00