[llvm-bugs] [Bug 36157] New: Crash when building .c file containing C++ code
via llvm-bugs
llvm-bugs at lists.llvm.org
Tue Jan 30 14:16:38 PST 2018
https://bugs.llvm.org/show_bug.cgi?id=36157
Bug ID: 36157
Summary: Crash when building .c file containing C++ code
Product: clang
Version: trunk
Hardware: PC
OS: Linux
Status: NEW
Severity: enhancement
Priority: P
Component: -New Bugs
Assignee: unassignedclangbugs at nondot.org
Reporter: simon.marchi at polymtl.ca
CC: llvm-bugs at lists.llvm.org
I get this when building a .c file containing C++ some constructs.
foo.c:3:2: error: type name requires a specifier or qualifier
Foo (int n)
^
foo.c:4:4: warning: implicit declaration of function '_n' is invalid in C99
[-Wimplicit-function-declaration]
: _n(n)
^
clang-7.0: /home/emaisin/src/llvm/tools/clang/lib/AST/Decl.cpp:1954: bool
isDeclExternC(const T &) [T = clang::FunctionDecl]: Assertion
`D.getASTContext().getLangOpts().CPlusPlus' failed.
#0 0x000000000239f009 llvm::sys::PrintStackTrace(llvm::raw_ostream&)
/home/emaisin/src/llvm/lib/Support/Unix/Signals.inc:398:11
#1 0x000000000239f1b9 PrintStackTraceSignalHandler(void*)
/home/emaisin/src/llvm/lib/Support/Unix/Signals.inc:462:1
#2 0x000000000239d7b3 llvm::sys::RunSignalHandlers()
/home/emaisin/src/llvm/lib/Support/Signals.cpp:0:5
#3 0x000000000239f514 SignalHandler(int)
/home/emaisin/src/llvm/lib/Support/Unix/Signals.inc:252:1
#4 0x00007f8d06cf7390 __restore_rt
(/lib/x86_64-linux-gnu/libpthread.so.0+0x11390)
#5 0x00007f8d05861428 gsignal
/build/glibc-Cl5G7W/glibc-2.23/signal/../sysdeps/unix/sysv/linux/raise.c:54:0
#6 0x00007f8d0586302a abort /build/glibc-Cl5G7W/glibc-2.23/stdlib/abort.c:91:0
#7 0x00007f8d05859bd7 __assert_fail_base
/build/glibc-Cl5G7W/glibc-2.23/assert/assert.c:92:0
#8 0x00007f8d05859c82 (/lib/x86_64-linux-gnu/libc.so.6+0x2dc82)
#9 0x0000000005f85145 bool
isDeclExternC<clang::FunctionDecl>(clang::FunctionDecl const&)
/home/emaisin/src/llvm/tools/clang/lib/AST/Decl.cpp:1955:5
#10 0x0000000005f850c5 clang::FunctionDecl::isExternC() const
/home/emaisin/src/llvm/tools/clang/lib/AST/Decl.cpp:2788:3
#11 0x0000000004acaf86 bool
isIncompleteDeclExternC<clang::FunctionDecl>(clang::Sema&, clang::FunctionDecl
const*) /home/emaisin/src/llvm/tools/clang/lib/Sema/SemaDecl.cpp:6170:3
#12 0x0000000004abd692 clang::Sema::ActOnFunctionDeclarator(clang::Scope*,
clang::Declarator&, clang::DeclContext*, clang::TypeSourceInfo*,
clang::LookupResult&, llvm::MutableArrayRef<clang::TemplateParameterList*>,
bool&) /home/emaisin/src/llvm/tools/clang/lib/Sema/SemaDecl.cpp:9032:7
#13 0x0000000004ab86af clang::Sema::HandleDeclarator(clang::Scope*,
clang::Declarator&, llvm::MutableArrayRef<clang::TemplateParameterList*>)
/home/emaisin/src/llvm/tools/clang/lib/Sema/SemaDecl.cpp:5508:9
#14 0x0000000004ab7a72 clang::Sema::ActOnDeclarator(clang::Scope*,
clang::Declarator&)
/home/emaisin/src/llvm/tools/clang/lib/Sema/SemaDecl.cpp:5188:9
#15 0x0000000004aa2c70
clang::Sema::ImplicitlyDefineFunction(clang::SourceLocation,
clang::IdentifierInfo&, clang::Scope*)
/home/emaisin/src/llvm/tools/clang/lib/Sema/SemaDecl.cpp:13009:22
#16 0x0000000004e25c74 clang::Sema::ActOnIdExpression(clang::Scope*,
clang::CXXScopeSpec&, clang::SourceLocation, clang::UnqualifiedId&, bool, bool,
std::unique_ptr<clang::CorrectionCandidateCallback,
std::default_delete<clang::CorrectionCandidateCallback> >, bool, clang::Token*)
/home/emaisin/src/llvm/tools/clang/lib/Sema/SemaExpr.cpp:2118:16
#17 0x00000000045e9bdf clang::Parser::ParseCastExpression(bool, bool, bool&,
clang::Parser::TypeCastState, bool)
/home/emaisin/src/llvm/tools/clang/lib/Parse/ParseExpr.cpp:1037:19
#18 0x00000000045e3805 clang::Parser::ParseCastExpression(bool, bool,
clang::Parser::TypeCastState, bool)
/home/emaisin/src/llvm/tools/clang/lib/Parse/ParseExpr.cpp:527:20
#19 0x00000000045e592b
clang::Parser::ParseConstantExpressionInExprEvalContext(clang::Parser::TypeCastState)
/home/emaisin/src/llvm/tools/clang/lib/Parse/ParseExpr.cpp:205:18
#20 0x00000000045e59c3
clang::Parser::ParseConstantExpression(clang::Parser::TypeCastState)
/home/emaisin/src/llvm/tools/clang/lib/Parse/ParseExpr.cpp:217:10
#21 0x00000000045a7623
clang::Parser::ParseStructDeclaration(clang::ParsingDeclSpec&,
llvm::function_ref<void (clang::ParsingFieldDeclarator&)>)
/home/emaisin/src/llvm/tools/clang/lib/Parse/ParseDecl.cpp:3858:22
#22 0x00000000045a7ad4
clang::Parser::ParseStructUnionBody(clang::SourceLocation, unsigned int,
clang::Decl*) /home/emaisin/src/llvm/tools/clang/lib/Parse/ParseDecl.cpp:3954:7
#23 0x00000000045c5971
clang::Parser::ParseClassSpecifier(clang::tok::TokenKind,
clang::SourceLocation, clang::DeclSpec&, clang::Parser::ParsedTemplateInfo
const&, clang::AccessSpecifier, bool, clang::Parser::DeclSpecContext,
clang::Parser::ParsedAttributesWithRange&)
/home/emaisin/src/llvm/tools/clang/lib/Parse/ParseDeclCXX.cpp:1921:40
#24 0x000000000459fcb9
clang::Parser::ParseDeclarationSpecifiers(clang::DeclSpec&,
clang::Parser::ParsedTemplateInfo const&, clang::AccessSpecifier,
clang::Parser::DeclSpecContext, clang::Parser::LateParsedAttrList*)
/home/emaisin/src/llvm/tools/clang/lib/Parse/ParseDecl.cpp:3633:7
#25 0x000000000457982d
clang::Parser::ParseDeclOrFunctionDefInternal(clang::Parser::ParsedAttributesWithRange&,
clang::ParsingDeclSpec&, clang::AccessSpecifier)
/home/emaisin/src/llvm/tools/clang/lib/Parse/Parser.cpp:927:7
#26 0x0000000004579440
clang::Parser::ParseDeclarationOrFunctionDefinition(clang::Parser::ParsedAttributesWithRange&,
clang::ParsingDeclSpec*, clang::AccessSpecifier)
/home/emaisin/src/llvm/tools/clang/lib/Parse/Parser.cpp:1028:12
#27 0x0000000004578a72
clang::Parser::ParseExternalDeclaration(clang::Parser::ParsedAttributesWithRange&,
clang::ParsingDeclSpec*)
/home/emaisin/src/llvm/tools/clang/lib/Parse/Parser.cpp:853:12
#28 0x0000000004577826
clang::Parser::ParseTopLevelDecl(clang::OpaquePtr<clang::DeclGroupRef>&)
/home/emaisin/src/llvm/tools/clang/lib/Parse/Parser.cpp:609:12
#29 0x000000000457734e
clang::Parser::ParseFirstTopLevelDecl(clang::OpaquePtr<clang::DeclGroupRef>&)
/home/emaisin/src/llvm/tools/clang/lib/Parse/Parser.cpp:535:8
#30 0x00000000045726a2 clang::ParseAST(clang::Sema&, bool, bool)
/home/emaisin/src/llvm/tools/clang/lib/Parse/ParseAST.cpp:146:13
#31 0x0000000002e7bfac clang::ASTFrontendAction::ExecuteAction()
/home/emaisin/src/llvm/tools/clang/lib/Frontend/FrontendAction.cpp:1007:1
#32 0x000000000346b803 clang::CodeGenAction::ExecuteAction()
/home/emaisin/src/llvm/tools/clang/lib/CodeGen/CodeGenAction.cpp:1032:1
#33 0x0000000002e7ba20 clang::FrontendAction::Execute()
/home/emaisin/src/llvm/tools/clang/lib/Frontend/FrontendAction.cpp:908:7
#34 0x0000000002e07a5a
clang::CompilerInstance::ExecuteAction(clang::FrontendAction&)
/home/emaisin/src/llvm/tools/clang/lib/Frontend/CompilerInstance.cpp:992:7
#35 0x0000000002ffea1c
clang::ExecuteCompilerInvocation(clang::CompilerInstance*)
/home/emaisin/src/llvm/tools/clang/lib/FrontendTool/ExecuteCompilerInvocation.cpp:252:8
#36 0x0000000000e4b2fb cc1_main(llvm::ArrayRef<char const*>, char const*,
void*) /home/emaisin/src/llvm/tools/clang/tools/driver/cc1_main.cpp:221:11
#37 0x0000000000e3e0c9 ExecuteCC1Tool(llvm::ArrayRef<char const*>,
llvm::StringRef)
/home/emaisin/src/llvm/tools/clang/tools/driver/driver.cpp:309:5
#38 0x0000000000e3cdbd main
/home/emaisin/src/llvm/tools/clang/tools/driver/driver.cpp:389:5
#39 0x00007f8d0584c830 __libc_start_main
/build/glibc-Cl5G7W/glibc-2.23/csu/../csu/libc-start.c:325:0
#40 0x0000000000e3bbc9 _start (/home/emaisin/build/llvm/bin/clang-7.0+0xe3bbc9)
Stack dump:
0. Program arguments: /home/emaisin/build/llvm/bin/clang-7.0 -cc1 -triple
x86_64-unknown-linux-gnu -emit-obj -mrelax-all -disable-free -main-file-name
foo.c -mrelocation-model static -mthread-model posix -mdisable-fp-elim
-fmath-errno -masm-verbose -mconstructor-aliases -munwind-tables
-fuse-init-array -target-cpu x86-64 -dwarf-column-info -debugger-tuning=gdb
-resource-dir /home/emaisin/build/llvm/lib/clang/7.0.0 -internal-isystem
/usr/local/include -internal-isystem
/home/emaisin/build/llvm/lib/clang/7.0.0/include -internal-externc-isystem
/usr/include/x86_64-linux-gnu -internal-externc-isystem /include
-internal-externc-isystem /usr/include -fdebug-compilation-dir
/home/emaisin/build/llvm/ls-interact -ferror-limit 19 -fmessage-length 0
-fobjc-runtime=gcc -fdiagnostics-show-option -o /tmp/foo-486449.o -x c foo.c
1. foo.c:4:6: current parser token '('
2. foo.c:1:1: parsing struct/union body 'Foo'
clang-7.0: error: unable to execute command: Aborted
clang-7.0: error: clang frontend command failed due to signal (use -v to see
invocation)
clang version 7.0.0 (trunk 323257) (llvm/trunk 323256)
Target: x86_64-unknown-linux-gnu
Thread model: posix
InstalledDir: /home/emaisin/build/llvm/bin
clang-7.0: note: diagnostic msg: PLEASE submit a bug report to
http://llvm.org/bugs/ and include the crash backtrace, preprocessed source, and
associated run script.
clang-7.0: note: diagnostic msg:
********************
PLEASE ATTACH THE FOLLOWING FILES TO THE BUG REPORT:
Preprocessed source(s) and associated run script(s) are located at:
clang-7.0: note: diagnostic msg: /tmp/foo-390f0f.c
clang-7.0: note: diagnostic msg: /tmp/foo-390f0f.sh
clang-7.0: note: diagnostic msg:
********************
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