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Rework the analysis of the 'r' specifier. It turns out that we can't

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make it like xArg because they are different ('x' doesn't accept sign,
but 'r' does).
This fixes some warnings when building DDB with clang.

With help from:	rdivacky
This commit is contained in:
Rui Paulo 2010-10-11 17:18:23 +00:00
parent 88660748b0
commit 72578a23bf
3 changed files with 7 additions and 1 deletions
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1
contrib/llvm/tools/clang/include/clang/Analysis/Analyses/FormatString.h
View File

@ -147,6 +147,7 @@ class ConversionSpecifier {
// FreeBSD specific specifiers
bArg,
DArg,
rArg,
// GlibC specific specifiers.
PrintErrno, // 'm'

2
contrib/llvm/tools/clang/lib/Analysis/FormatString.cpp
View File

@ -423,6 +423,7 @@ bool FormatSpecifier::hasValidLengthModifier() const {
case ConversionSpecifier::xArg:
case ConversionSpecifier::XArg:
case ConversionSpecifier::nArg:
case ConversionSpecifier::rArg:
return true;
default:
return false;
@ -448,6 +449,7 @@ bool FormatSpecifier::hasValidLengthModifier() const {
case ConversionSpecifier::nArg:
case ConversionSpecifier::cArg:
case ConversionSpecifier::sArg:
case ConversionSpecifier::rArg:
return true;
default:
return false;

5
contrib/llvm/tools/clang/lib/Analysis/PrintfFormatString.cpp
View File

@ -195,7 +195,7 @@ static PrintfSpecifierResult ParsePrintfSpecifier(FormatStringHandler &H,
case 'm': k = ConversionSpecifier::PrintErrno; break;
// FreeBSD format extensions
case 'b': if (FormatExtensions) k = ConversionSpecifier::bArg; break; /* check for int and then char * */
case 'r': if (FormatExtensions) k = ConversionSpecifier::xArg; break;
case 'r': if (FormatExtensions) k = ConversionSpecifier::rArg; break;
case 'y': if (FormatExtensions) k = ConversionSpecifier::iArg; break;
case 'D': if (FormatExtensions) k = ConversionSpecifier::DArg; break; /* check for u_char * pointer and a char * string */
}
@ -279,6 +279,7 @@ const char *ConversionSpecifier::toString() const {
// FreeBSD specific specifiers.
case bArg: return "b";
case DArg: return "D";
case rArg: return "r";
// GlibC specific specifiers.
case PrintErrno: return "m";
@ -491,6 +492,7 @@ bool PrintfSpecifier::hasValidPlusPrefix() const {
case ConversionSpecifier::GArg:
case ConversionSpecifier::aArg:
case ConversionSpecifier::AArg:
case ConversionSpecifier::rArg:
return true;
default:
@ -514,6 +516,7 @@ bool PrintfSpecifier::hasValidAlternativeForm() const {
case ConversionSpecifier::FArg:
case ConversionSpecifier::gArg:
case ConversionSpecifier::GArg:
case ConversionSpecifier::rArg:
return true;
default: