143773 2015-04-15 06:34:44 -0700 [W32] Many warnings about printf format all over the code when building with MinGW 2019-02-03 12:23:01 -0800 1 1 1 Unclassified WebKit New Bugs 528+ (Nightly build) Unspecified Unspecified NEW https://bugs.webkit.org/show_bug.cgi?id=30342 P2 Normal --- 133028 1 lrn1986 webkit-unassigned cgarcia lrn1986 oldest_to_newest 1085468 0 lrn1986 2015-04-15 06:34:44 -0700 "printf" means "gnu_printf" when compiling for non-Windows and means "ms_printf" when compiling for Windows. The code, however, does seems to be assuming gnu_printf (judging by the use of %z and %l). 1085563 1 250820 lrn1986 2015-04-15 10:18:24 -0700 Created attachment 250820 Change printf format attribute to gnu_printf, MinGW compatibility "printf" means "gnu_printf" when compiling for non-Windows and means "ms_printf" when compiling for Windows. The code, however, does seems to be assuming gnu_printf (judging by the use of %z and %l). Fix this by explicitly specifying gnu_printf format style. To ensure that gnu-compatible printf implementation is used, compile with -D__USE_MINGW_ANSI_STDIO=1, it will automagically turn all *printf() invocations into __mingw_*printf(), which are gnu-compatible. Only one function that won't be turned is _vsnprintf(). Ifdef its use and call vsnprintf() instead when __USE_MINGW_ANSI_STDIO != 0. 1085569 2 250820 darin 2015-04-15 10:29:21 -0700 Comment on attachment 250820 Change printf format attribute to gnu_printf, MinGW compatibility View in context: https://bugs.webkit.org/attachment.cgi?id=250820&action=review > Source/WTF/ChangeLog:7 > + "printf" means "gnu_printf" when compiling for non-Windows and means > + "ms_printf" when compiling for Windows. The code, however, does seems to be > + assuming gnu_printf (judging by the use of %z and %l). We don’t need to use %z and %l; where do you see those? This patch might makes things better for MinGW, but they don’t resolve the problem for Windows so I’d prefer to actually tackle that problem. 1085577 3 lrn1986 2015-04-15 10:37:41 -0700 (In reply to comment #2) > Comment on attachment 250820 [details] > Change printf format attribute to gnu_printf, MinGW compatibility > > View in context: > https://bugs.webkit.org/attachment.cgi?id=250820&action=review > > > Source/WTF/ChangeLog:7 > > + "printf" means "gnu_printf" when compiling for non-Windows and means > > + "ms_printf" when compiling for Windows. The code, however, does seems to be > > + assuming gnu_printf (judging by the use of %z and %l). > > We don’t need to use %z and %l; where do you see those? This patch might > makes things better for MinGW, but they don’t resolve the problem for > Windows so I’d prefer to actually tackle that problem. ../webkitgtk-2.4.8/Source/WTF/wtf/FilePrintStream.cpp: In member function 'virtual void WTF::FilePrintStream::vprintf(const char*, va_list)': ../webkitgtk-2.4.8/Source/WTF/wtf/FilePrintStream.cpp:55:37: warning: function might be possible candidate for 'gnu_printf' format attribute [-Wsuggest-attribute=format] vfprintf(m_file, format, argList); ^ ../webkitgtk-2.4.8/Source/WTF/wtf/PrintStream.cpp: In function 'void WTF::printInternal(WTF::PrintStream&, long long int)': ../webkitgtk-2.4.8/Source/WTF/wtf/PrintStream.cpp:124:29: warning: unknown conversion type character 'l' in format [-Wformat=] out.printf("%lld", value); ^ ../webkitgtk-2.4.8/Source/WTF/wtf/PrintStream.cpp:124:29: warning: too many arguments for format [-Wformat-extra-args] ../webkitgtk-2.4.8/Source/WTF/wtf/PrintStream.cpp: In function 'void WTF::printInternal(WTF::PrintStream&, long long unsigned int)': ../webkitgtk-2.4.8/Source/WTF/wtf/PrintStream.cpp:129:29: warning: unknown conversion type character 'l' in format [-Wformat=] out.printf("%llu", value); ^ ../webkitgtk-2.4.8/Source/WTF/wtf/PrintStream.cpp:129:29: warning: too many arguments for format [-Wformat-extra-args] ../webkitgtk-2.4.8/Source/WTF/wtf/StringPrintStream.cpp: In member function 'virtual void WTF::StringPrintStream::vprintf(const char*, va_list)': ../webkitgtk-2.4.8/Source/WTF/wtf/StringPrintStream.cpp:60:79: warning: function might be possible candidate for 'gnu_printf' format attribute [-Wsuggest-attribute=format] vsnprintf(m_buffer + m_next, m_size - m_next, format, firstPassArgList); ^ ../webkitgtk-2.4.8/Source/WTF/wtf/StringPrintStream.cpp:73:70: warning: function might be possible candidate for 'gnu_printf' format attribute [-Wsuggest-attribute=format] vsnprintf(m_buffer + m_next, m_size - m_next, format, argList); ^ ../webkitgtk-2.4.8/Source/WTF/wtf/text/WTFString.cpp: In static member function 'static WTF::String WTF::String::format(const char*, ...)': ../webkitgtk-2.4.8/Source/WTF/wtf/text/WTFString.cpp:463:48: warning: function might be possible candidate for 'gnu_printf' format attribute [-Wsuggest-attribute=format] int result = vsnprintf(&ch, 1, format, args); ^ ../webkitgtk-2.4.8/Source/WTF/wtf/text/WTFString.cpp:482:57: warning: function might be possible candidate for 'gnu_printf' format attribute [-Wsuggest-attribute=format] vsnprintf(buffer.data(), buffer.size(), format, args); ^ ../webkitgtk-2.4.8/Source/WebCore/platform/sql/SQLiteFileSystem.cpp: In static member function 'static WTF::String WebCore::SQLiteFileSystem::getFileNameForNewDatabase(const WTF::String&, const WTF::String&, const WTF::String&, WebCore::SQLiteDatabase*)': ../webkitgtk-2.4.8/Source/WebCore/platform/sql/SQLiteFileSystem.cpp:76:91: warning: unknown conversion type character 'l' in format [-Wformat=] fileName = pathByAppendingComponent(dbDir, String::format("%016" PRIx64 ".db", seq)); ^ ../webkitgtk-2.4.8/Source/WebCore/platform/sql/SQLiteFileSystem.cpp:76:91: warning: too many arguments for format [-Wformat-extra-args] ../webkitgtk-2.4.8/Source/WebCore/platform/sql/SQLiteFileSystem.cpp:79:51: warning: unknown conversion type character 'l' in format [-Wformat=] return String::format("%016" PRIx64 ".db", seq); ^ ../webkitgtk-2.4.8/Source/WebCore/platform/sql/SQLiteFileSystem.cpp:79:51: warning: too many arguments for format [-Wformat-extra-args] ../webkitgtk-2.4.8/Source/JavaScriptCore/jsc.cpp: In member function 'JSC::StackVisitor::Status FunctionJSCStackFunctor::operator()(JSC::StackVisitor&)': ../webkitgtk-2.4.8/Source/JavaScriptCore/jsc.cpp:339:108: warning: unknown conversion type character 'z' in format [-Wformat=] m_trace.append(String::format(" %zu %s\n", visitor->index(), visitor->toString().utf8().data())); ^ ../webkitgtk-2.4.8/Source/JavaScriptCore/jsc.cpp:339:108: warning: format '%s' expects argument of type 'char*', but argument 2 has type 'size_t {aka unsigned int}' [-Wformat=] ../webkitgtk-2.4.8/Source/JavaScriptCore/jsc.cpp:339:108: warning: too many arguments for format [-Wformat-extra-args] ../webkitgtk-2.4.8/Source/WebCore/xml/parser/XMLDocumentParserLibxml2.cpp: In member function 'void WebCore::XMLDocumentParser::error(WebCore::XMLErrors::ErrorType, const char*, va_list)': ../webkitgtk-2.4.8/Source/WebCore/xml/parser/XMLDocumentParserLibxml2.cpp:964:46: warning: function might be possible candidate for 'gnu_printf' format attribute [-Wsuggest-attribute=format] vsnprintf(m, sizeof(m) - 1, message, args); ^ In file included from ../webkitgtk-2.4.8/Source/JavaScriptCore/disassembler/ARM64/A64DOpcode.cpp:27:0: ../webkitgtk-2.4.8/Source/JavaScriptCore/disassembler/ARM64/A64DOpcode.h: In member function 'void JSC::ARM64Disassembler::A64DOpcode::appendUnsignedImmediate64(uint64_t)': ../webkitgtk-2.4.8/Source/JavaScriptCore/disassembler/ARM64/A64DOpcode.h:175:42: warning: unknown conversion type character 'l' in format [-Wformat=] bufferPrintf("#0x%llx", immediate); ^ ../webkitgtk-2.4.8/Source/JavaScriptCore/disassembler/ARM64/A64DOpcode.h:175:42: warning: too many arguments for format [-Wformat-extra-args] ../webkitgtk-2.4.8/Source/JavaScriptCore/disassembler/ARM64/A64DOpcode.h: In member function 'void JSC::ARM64Disassembler::A64DOpcode::appendPCRelativeOffset(uint32_t*, int32_t)': ../webkitgtk-2.4.8/Source/JavaScriptCore/disassembler/ARM64/A64DOpcode.h:180:74: warning: unknown conversion type character 'l' in format [-Wformat=] bufferPrintf("0x%llx", reinterpret_cast<uint64_t>(pc + immediate)); ^ ../webkitgtk-2.4.8/Source/JavaScriptCore/disassembler/ARM64/A64DOpcode.h:180:74: warning: too many arguments for format [-Wformat-extra-args] ../webkitgtk-2.4.8/Source/JavaScriptCore/disassembler/ARM64/A64DOpcode.cpp: In member function 'void JSC::ARM64Disassembler::A64DOpcode::bufferPrintf(const char*, ...)': ../webkitgtk-2.4.8/Source/JavaScriptCore/disassembler/ARM64/A64DOpcode.cpp:162:110: warning: function might be possible candidate for 'gnu_printf' format attribute [-Wsuggest-attribute=format] m_bufferOffset += vsnprintf(m_formatBuffer + m_bufferOffset, bufferSize - m_bufferOffset, format, argList); ^ In file included from ../webkitgtk-2.4.8/Source/JavaScriptCore/tools/CodeProfile.cpp:32:0: ../webkitgtk-2.4.8/Source/JavaScriptCore/tools/ProfileTreeNode.h: In member function 'void JSC::ProfileTreeNode::dumpInternal(unsigned int)': ../webkitgtk-2.4.8/Source/JavaScriptCore/tools/ProfileTreeNode.h:102:89: warning: unknown conversion type character 'l' in format [-Wformat=] static_cast<long long>(entry->value.count() - entry->value.childCount())); ^ ../webkitgtk-2.4.8/Source/JavaScriptCore/tools/ProfileTreeNode.h:102:89: warning: format '%s' expects argument of type 'char*', but argument 2 has type 'long long int' [-Wformat=] ../webkitgtk-2.4.8/Source/JavaScriptCore/tools/ProfileTreeNode.h:102:89: warning: unknown conversion type character 'l' in format [-Wformat=] ../webkitgtk-2.4.8/Source/JavaScriptCore/tools/ProfileTreeNode.h:102:89: warning: too many arguments for format [-Wformat-extra-args] ../webkitgtk-2.4.8/Source/JavaScriptCore/tools/CodeProfile.cpp: In member function 'void JSC::CodeProfile::report()': ../webkitgtk-2.4.8/Source/JavaScriptCore/tools/CodeProfile.cpp:183:83: warning: unknown conversion type character 'l' in format [-Wformat=] dataLogF("Total samples: %lld\n", static_cast<long long>(profile.childCount())); ^ ../webkitgtk-2.4.8/Source/JavaScriptCore/tools/CodeProfile.cpp:183:83: warning: too many arguments for format [-Wformat-extra-args] 250820 2015-04-15 10:18:24 -0700 2015-04-15 10:29:21 -0700 Change printf format attribute to gnu_printf, MinGW compatibility Change-printf-format-attribute-to-gnuprintf-MinGW-.patch text/plain 4685 lrn1986 RnJvbSA0YzUwMzQwODI2MmU0MWJmZWFiOGU1ZjBhYTBhYTgzNmFhZWI2YzcxIE1vbiBTZXAgMTcg MDA6MDA6MDAgMjAwMQpGcm9tOiA9P1VURi04P3E/PUQwPUEwPUQxPTgzPUQxPTgxPUQwPUJCPUQw 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