replica
/
hanchenye-llvm-project
2
0
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity
261,541 Commits 2 Branches 0 Tags 1.8 GiB
Commit Graph

39 Commits

Author SHA1 Message Date
Benjamin Kramer f3b323debc [Sema] Don't crash on scanf on forward-declared enums. 
This is valid in GNU C, which allows pointers to incomplete enums. GCC
just pretends that the underlying type is 'int' in those cases, follow
that behavior.

llvm-svn: 279374
 2016-08-20 16:51:33 +00:00
Bruno Cardoso Lopes 0c18d03d91 [Sema] Handle UTF-8 invalid format string specifiers 
Improve invalid format string specifier handling by printing out
invalid specifiers characters with \x, \u and \U. Previously clang
would print gargabe whenever the character is unprintable.

Example, before:
  NSLog(@"%\u25B9"); => warning: invalid conversion specifier ' [-Wformat-invalid-specifier]
after:
  NSLog(@"%\u25B9"); => warning: invalid conversion specifier '\u25b9' [-Wformat-invalid-specifier]

Differential Revision: http://reviews.llvm.org/D18296

rdar://problem/24672159

llvm-svn: 264752
 2016-03-29 17:35:02 +00:00
Hans Wennborg 1b23158ce4 MS format strings: allow the 'h' length modifier with C, C, s and S (PR20808) 
llvm-svn: 217196
 2014-09-04 21:39:52 +00:00
Hans Wennborg 68f42b9515 MS format strings: support the 'w' length modifier (PR20808) 
llvm-svn: 217195
 2014-09-04 21:39:46 +00:00
Craig Topper 2554294321 [C++11] Use 'nullptr'. Analysis edition. 
llvm-svn: 209191
 2014-05-20 04:30:07 +00:00
Hans Wennborg 802df13e4d Fix bad comment from r207573. 
llvm-svn: 207854
 2014-05-02 18:12:30 +00:00
Hans Wennborg df51ee6c50 scanf analysis: handle scanlists that start with ^] (PR19559) 
llvm-svn: 207573
 2014-04-29 19:42:27 +00:00
Jordan Rose 177b0a3600 scanf format checking: include the buffer length in the fix-it for %s. 
Patch by Zach Davis!

llvm-svn: 204300
 2014-03-20 03:32:39 +00:00
David Majnemer 3cba495abc Analysis: Add support for MS specific printf format specifiers 
Summary: Adds support for %I, %I32 and %I64.

Reviewers: hans, jordan_rose, rnk, majnemer

Reviewed By: majnemer

CC: cfe-commits, cdavis5x

Differential Revision: http://llvm-reviews.chandlerc.com/D1456

llvm-svn: 188937
 2013-08-21 21:54:46 +00:00
Hans Wennborg 0d81e01916 Add support for __wchar_t in -fms-extensions mode. 
MSVC provides __wchar_t. This is the same as the built-in wchar_t type
from C++, but it is also available with -fno-wchar and in C.

The commit changes ASTContext to have two different types for this:

  - WCharTy is the built-in type used for wchar_t in C++ and __wchar_t.

  - WideCharTy is the type of a wide character literal. In C++ this is
    the same as WCharTy, and in C  it is an integer type compatible with
    the type in <stddef.h>.

This fixes PR15815.

llvm-svn: 181587
 2013-05-10 10:08:40 +00:00
Richard Smith 2bf7fdb723 s/CPlusPlus0x/CPlusPlus11/g 
llvm-svn: 171367
 2013-01-02 11:42:31 +00:00
Chandler Carruth 3a02247dc9 Sort all of Clang's files under 'lib', and fix up the broken headers 
uncovered.

This required manually correcting all of the incorrect main-module
headers I could find, and running the new llvm/utils/sort_includes.py
script over the files.

I also manually added quite a few missing headers that were uncovered by
shuffling the order or moving headers up to be main-module-headers.

llvm-svn: 169237
 2012-12-04 09:13:33 +00:00
Jordan Rose 510260c2bf Format strings: %D, %U, and %O are valid on Darwin (same as %d, %u, %o). 
These will warn under -Wformat-non-iso, and will still be rejected
outright on other platforms.

<rdar://problem/12061922>

llvm-svn: 163771
 2012-09-13 02:11:03 +00:00
Dmitri Gribenko 76bb5cabfa Remove redundant semicolons which are null statements. 
llvm-svn: 163546
 2012-09-10 21:20:09 +00:00
Jordan Rose 92303592c3 Format strings: %Ld isn't available on Darwin or Windows. 
This seems to be a GNU libc extension; we offer a fixit to %lld on
these platforms.

<rdar://problem/11518237>

llvm-svn: 163452
 2012-09-08 04:00:03 +00:00
Hans Wennborg abc1e22d65 Properly check length modfiers for %n in format strings. 
llvm-svn: 161408
 2012-08-07 09:13:19 +00:00
Hans Wennborg b1ab2a84f0 Remove ScanfArgType and bake that logic into ArgType. 
This is useful for example for %n in printf, which expects
a pointer to int with the same logic for checking as %d
would have in scanf.

llvm-svn: 161407
 2012-08-07 08:59:46 +00:00
Hans Wennborg c3b3da0bb2 Rename analyze_format_string::ArgTypeResult to ArgType 
Also remove redundant constructors and unused member functions.

llvm-svn: 161403
 2012-08-07 08:11:26 +00:00
Hans Wennborg 16250c7c18 -Wformat: better handling of qualifiers on pointer arguments 
Warn about using pointers to const-qualified types as arguments to
scanf. Ignore the volatile qualifier when checking if types match.

llvm-svn: 161052
 2012-07-31 16:37:47 +00:00
Hans Wennborg ebcd1c7ca2 Make -Wformat check the argument type for %n. 
This makes Clang check that the corresponding argument for "%n" in a
format string is a pointer to int.

llvm-svn: 160966
 2012-07-30 17:11:32 +00:00
Hans Wennborg 08574d3559 Make -Wformat walk the typedef chain when looking for size_t, etc. 
Clang's -Wformat fix-its currently suggest using "%zu" for values of
type size_t (in C99 or C++11 mode). However, for a type such as
std::vector<T>::size_type, it does not notice that type is actually
typedeffed to size_t, and instead suggests a format for the underlying
type, such as "%lu" or "%u".

This commit makes the format string fix mechanism walk the typedef chain
so that it notices if the type is size_t, even if that isn't "at the
top".

llvm-svn: 160886
 2012-07-27 19:17:46 +00:00
Jordan Rose 614e72bec7 Make suggestions for mismatched enum arguments to printf/scanf. 
llvm-svn: 157962
 2012-06-04 22:49:02 +00:00
Hans Wennborg 9bc9bcc247 Format string analysis: give 'q' its own enumerator. 
This is in preparation for being able to warn about 'q' and other
non-standard format string features.

It also allows us to print its name correctly.

llvm-svn: 150697
 2012-02-16 16:34:54 +00:00
Hans Wennborg d99d688358 Make -Wformat fix-its preserve original conversion specifiers. 
This commit makes PrintfSpecifier::fixType() and ScanfSpecifier::fixType()
only fix a conversion specification enough that Clang wouldn't warn about it,
as opposed to always changing it to use the "canonical" conversion specifier.
(PR11975)

This preserves the user's choice of conversion specifier in cases like:

printf("%a", (long double)1);
where we previously suggested "%Lf", we now suggest "%La"

printf("%x", (long)1);
where we previously suggested "%ld", we now suggest "%lx".

llvm-svn: 150578
 2012-02-15 09:59:46 +00:00
Ted Kremenek 6fa5727939 Teach scanf/printf checking about '%Ld' and friends (a GNU extension). Fixes PR 9466. 
llvm-svn: 148859
 2012-01-24 21:29:54 +00:00
David Blaikie e4d798f078 More dead code removal (using -Wunreachable-code) 
llvm-svn: 148577
 2012-01-20 21:50:17 +00:00
Hans Wennborg 6073e31baa scanf: parse the 'm' length modifier, and check that the right arguments 
are used with that and the 'a' length modifier.

llvm-svn: 148029
 2012-01-12 17:11:12 +00:00
Hans Wennborg 32f115f9c1 scanf analysis: don't bail out after successful parse of scanlist 
llvm-svn: 148025
 2012-01-12 14:44:54 +00:00
Hans Wennborg 23926bd2d7 Support the 'a' length modifier in scanf format strings as a C90 
extension.

This fixes gcc.dg/format/c90-scanf-3.c and ext-4.c (test for excess
errors).

llvm-svn: 146649
 2011-12-15 10:25:47 +00:00
Hans Wennborg b1a5e09f6f Check that arguments to a scanf call match the format specifier, 
and offer fixits when there is a mismatch.

llvm-svn: 146326
 2011-12-10 13:20:11 +00:00
Michael J. Spencer 2c35bc1232 Revert r109428 "Hoist argument type checking into CheckFormatHandler. This is prep for scanf format" 
Got errors about ASTContext being undefined with Visual Studio 2010.

llvm-svn: 109491
 2010-07-27 04:46:02 +00:00
Dan Gohman 28ade550f4 Fix namespace polution. 
llvm-svn: 109440
 2010-07-26 21:25:24 +00:00
Ted Kremenek df4472bca0 Hoist argument type checking into CheckFormatHandler. This is prep for scanf format 
string argument type checking.

llvm-svn: 109428
 2010-07-26 19:45:54 +00:00
Ted Kremenek 4407ea4948 Hookup checking for invalid length modifiers in scanf format strings. 
llvm-svn: 108907
 2010-07-20 20:04:47 +00:00
Ted Kremenek f03e6d85a1 Add 'ConversionSpecifier' root class in 'analyze_format_string' namespace and 
derived 'PrintfConversionSpecifier' from this class.  We will do the same for
'ScanfConversionSpecifier'.

llvm-svn: 108903
 2010-07-20 20:04:27 +00:00
Ted Kremenek 516ef222ba Rename 'ConsumedSoFarArg' -> 'nArg' and 'OutIntPtrArg' to 'nArg' (scanf and printf checking). 
llvm-svn: 108900
 2010-07-20 20:04:10 +00:00
Ted Kremenek 5c3e1b9a54 Add missing conversion specifier parsing for 'u', 'x', 'o', and 's'. Fixes <rdar://problem/8204052>. 
llvm-svn: 108742
 2010-07-19 19:47:40 +00:00
Ted Kremenek d7b31cc60d Hook up warning for an incomplete scanlist in scanf format strings. 
llvm-svn: 108542
 2010-07-16 18:28:03 +00:00
Ted Kremenek a1ef09407d Add the main scanf-parsing logic that I meant to include in my previous commit. 
llvm-svn: 108502
 2010-07-16 02:11:31 +00:00