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<head>
<base href="https://bugs.llvm.org/">
</head>
<body><table border="1" cellspacing="0" cellpadding="8">
<tr>
<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - riscv64 Linux kernel's allyesconfig fails to build after 5d73f79c54788"
href="https://bugs.llvm.org/show_bug.cgi?id=45580">45580</a>
</td>
</tr>
<tr>
<th>Summary</th>
<td>riscv64 Linux kernel's allyesconfig fails to build after 5d73f79c54788
</td>
</tr>
<tr>
<th>Product</th>
<td>libraries
</td>
</tr>
<tr>
<th>Version</th>
<td>trunk
</td>
</tr>
<tr>
<th>Hardware</th>
<td>PC
</td>
</tr>
<tr>
<th>OS</th>
<td>Windows NT
</td>
</tr>
<tr>
<th>Status</th>
<td>NEW
</td>
</tr>
<tr>
<th>Severity</th>
<td>enhancement
</td>
</tr>
<tr>
<th>Priority</th>
<td>P
</td>
</tr>
<tr>
<th>Component</th>
<td>MC
</td>
</tr>
<tr>
<th>Assignee</th>
<td>unassignedbugs@nondot.org
</td>
</tr>
<tr>
<th>Reporter</th>
<td>natechancellor@gmail.com
</td>
</tr>
<tr>
<th>CC</th>
<td>llvm-bugs@lists.llvm.org
</td>
</tr></table>
<p>
<div>
<pre>$ make -j$(nproc) -s ARCH=riscv CROSS_COMPILE=riscv64-linux-gnu-
LD=riscv64-linux-gnu-ld LLVM=1 LLVM_IAS=1 O=out/riscv64 distclean allyesconfig
all
...
clang:
/home/nathan/cbl/git/tc-build/llvm-project/llvm/lib/Target/RISCV/MCTargetDesc/RISCVMCCodeEmitter.cpp:265:
unsigned int (anonymous namespace)::RISCVMCCodeEmitter::getImmOpValue(const
llvm::MCInst &, unsigned int, SmallVectorImpl<llvm::MCFixup> &, const
llvm::MCSubtargetInfo &) const: Assertion `MO.isExpr() && "getImmOpValue
expects only expressions or immediates"' failed.
PLEASE submit a bug report to <a href="https://bugs.llvm.org/">https://bugs.llvm.org/</a> and include the crash
backtrace, preprocessed source, and associated run script.
Stack dump:
0. Program arguments: clang -Wp,-MD,crypto/.jitterentropy.o.d -nostdinc
-isystem /tmp/tmp.AN5nkMuk3h/llvm-bad/lib/clang/11.0.0/include
-I/home/nathan/src/linux/arch/riscv/include -I./arch/riscv/include/generated
-I/home/nathan/src/linux/include -I./include
-I/home/nathan/src/linux/arch/riscv/include/uapi
-I./arch/riscv/include/generated/uapi -I/home/nathan/src/linux/include/uapi
-I./include/generated/uapi -include
/home/nathan/src/linux/include/linux/kconfig.h -include
/home/nathan/src/linux/include/linux/compiler_types.h -D__KERNEL__
-Qunused-arguments -Wall -Wundef -Werror=strict-prototypes -Wno-trigraphs
-fno-strict-aliasing -fno-common -fshort-wchar -fno-PIE
-Werror=implicit-function-declaration -Werror=implicit-int -Wno-format-security
-std=gnu89 --target=riscv64-linux-gnu
--prefix=/home/nathan/cbl/toolchains/binutils/bin/
--gcc-toolchain=/home/nathan/cbl/toolchains/binutils-20200416-0232-aec72fda3b320c36eb99fc1c4cf95b10fc026729
-Werror=unknown-warning-option -mabi=lp64 -march=rv64imac -mno-save-restore
-DCONFIG_PAGE_OFFSET=0xffffffe000000000 -mcmodel=medany -fno-omit-frame-pointer
-fno-delete-null-pointer-checks -Wno-frame-address
-Wno-address-of-packed-member -O2 -Wframe-larger-than=2048 -fno-stack-protector
-Wno-format-invalid-specifier -Wno-gnu -mno-global-merge
-Wno-unused-const-variable -fno-omit-frame-pointer -fno-optimize-sibling-calls
-ftrivial-auto-var-init=pattern -pg -Wdeclaration-after-statement -Wvla
-Wno-pointer-sign -fno-strict-overflow -fno-merge-all-constants
-fno-stack-check -Werror=date-time -Werror=incompatible-pointer-types
-fmacro-prefix-map=/home/nathan/src/linux/= -Wno-initializer-overrides
-Wno-format -Wno-sign-compare -Wno-format-zero-length -Wno-pointer-to-enum-cast
-Wno-tautological-constant-out-of-range-compare -O0 -fno-builtin -I
/home/nathan/src/linux/crypto -I ./crypto
-DKBUILD_MODFILE="crypto/jitterentropy_rng" -DKBUILD_BASENAME="jitterentropy"
-DKBUILD_MODNAME="jitterentropy_rng" -c -o crypto/jitterentropy.o
/home/nathan/src/linux/crypto/jitterentropy.c
1. <eof> parser at end of file
2. Code generation
3. Running pass 'Function Pass Manager' on module
'/home/nathan/src/linux/crypto/jitterentropy.c'.
4. Running pass 'RISCV Assembly Printer' on function '@jent_read_entropy'
#0 0x0000000002635d34 PrintStackTraceSignalHandler(void*)
(/tmp/tmp.AN5nkMuk3h/llvm-bad/bin/clang-11+0x2635d34)
#1 0x0000000002633b0e llvm::sys::RunSignalHandlers()
(/tmp/tmp.AN5nkMuk3h/llvm-bad/bin/clang-11+0x2633b0e)
#2 0x0000000002634fbd llvm::sys::CleanupOnSignal(unsigned long)
(/tmp/tmp.AN5nkMuk3h/llvm-bad/bin/clang-11+0x2634fbd)
#3 0x00000000025cc923 (anonymous
namespace)::CrashRecoveryContextImpl::HandleCrash(int, unsigned long)
(/tmp/tmp.AN5nkMuk3h/llvm-bad/bin/clang-11+0x25cc923)
#4 0x00000000025cca5c CrashRecoverySignalHandler(int)
(/tmp/tmp.AN5nkMuk3h/llvm-bad/bin/clang-11+0x25cca5c)
#5 0x00007f99dba88890 __restore_rt
(/lib/x86_64-linux-gnu/libpthread.so.0+0x12890)
#6 0x00007f99da75be97 raise (/lib/x86_64-linux-gnu/libc.so.6+0x3ee97)
#7 0x00007f99da75d801 abort (/lib/x86_64-linux-gnu/libc.so.6+0x40801)
#8 0x00007f99da74d39a (/lib/x86_64-linux-gnu/libc.so.6+0x3039a)
#9 0x00007f99da74d412 (/lib/x86_64-linux-gnu/libc.so.6+0x30412)
#10 0x00000000016758b1 (anonymous
namespace)::RISCVMCCodeEmitter::getImmOpValue(llvm::MCInst const&, unsigned
int, llvm::SmallVectorImpl<llvm::MCFixup>&, llvm::MCSubtargetInfo const&) const
(/tmp/tmp.AN5nkMuk3h/llvm-bad/bin/clang-11+0x16758b1)
#11 0x0000000001674e72 (anonymous
namespace)::RISCVMCCodeEmitter::getBinaryCodeForInstr(llvm::MCInst const&,
llvm::SmallVectorImpl<llvm::MCFixup>&, llvm::MCSubtargetInfo const&) const
(/tmp/tmp.AN5nkMuk3h/llvm-bad/bin/clang-11+0x1674e72)
#12 0x0000000001672ec1 (anonymous
namespace)::RISCVMCCodeEmitter::encodeInstruction(llvm::MCInst const&,
llvm::raw_ostream&, llvm::SmallVectorImpl<llvm::MCFixup>&,
llvm::MCSubtargetInfo const&) const
(/tmp/tmp.AN5nkMuk3h/llvm-bad/bin/clang-11+0x1672ec1)
#13 0x000000000231e1b7 llvm::MCELFStreamer::EmitInstToData(llvm::MCInst const&,
llvm::MCSubtargetInfo const&)
(/tmp/tmp.AN5nkMuk3h/llvm-bad/bin/clang-11+0x231e1b7)
#14 0x000000000232d4ce llvm::MCObjectStreamer::emitInstructionImpl(llvm::MCInst
const&, llvm::MCSubtargetInfo const&)
(/tmp/tmp.AN5nkMuk3h/llvm-bad/bin/clang-11+0x232d4ce)
#15 0x000000000232d333 llvm::MCObjectStreamer::emitInstruction(llvm::MCInst
const&, llvm::MCSubtargetInfo const&)
(/tmp/tmp.AN5nkMuk3h/llvm-bad/bin/clang-11+0x232d333)
#16 0x0000000001618c39 (anonymous
namespace)::RISCVAsmPrinter::emitInstruction(llvm::MachineInstr const*)
(/tmp/tmp.AN5nkMuk3h/llvm-bad/bin/clang-11+0x1618c39)
#17 0x0000000003164731 llvm::AsmPrinter::emitFunctionBody()
(/tmp/tmp.AN5nkMuk3h/llvm-bad/bin/clang-11+0x3164731)
#18 0x0000000001618573 (anonymous
namespace)::RISCVAsmPrinter::runOnMachineFunction(llvm::MachineFunction&)
(/tmp/tmp.AN5nkMuk3h/llvm-bad/bin/clang-11+0x1618573)
#19 0x0000000001c2363e
llvm::MachineFunctionPass::runOnFunction(llvm::Function&)
(/tmp/tmp.AN5nkMuk3h/llvm-bad/bin/clang-11+0x1c2363e)
#20 0x0000000002007c64 llvm::FPPassManager::runOnFunction(llvm::Function&)
(/tmp/tmp.AN5nkMuk3h/llvm-bad/bin/clang-11+0x2007c64)
#21 0x0000000002007f58 llvm::FPPassManager::runOnModule(llvm::Module&)
(/tmp/tmp.AN5nkMuk3h/llvm-bad/bin/clang-11+0x2007f58)
#22 0x0000000002008684 llvm::legacy::PassManagerImpl::run(llvm::Module&)
(/tmp/tmp.AN5nkMuk3h/llvm-bad/bin/clang-11+0x2008684)
#23 0x0000000002818d4a clang::EmitBackendOutput(clang::DiagnosticsEngine&,
clang::HeaderSearchOptions const&, clang::CodeGenOptions const&,
clang::TargetOptions const&, clang::LangOptions const&, llvm::DataLayout
const&, llvm::Module*, clang::BackendAction,
std::unique_ptr<llvm::raw_pwrite_stream,
std::default_delete<llvm::raw_pwrite_stream> >)
(/tmp/tmp.AN5nkMuk3h/llvm-bad/bin/clang-11+0x2818d4a)
#24 0x0000000002fdb8ad
clang::BackendConsumer::HandleTranslationUnit(clang::ASTContext&)
(/tmp/tmp.AN5nkMuk3h/llvm-bad/bin/clang-11+0x2fdb8ad)
#25 0x000000000367fa43 clang::ParseAST(clang::Sema&, bool, bool)
(/tmp/tmp.AN5nkMuk3h/llvm-bad/bin/clang-11+0x367fa43)
#26 0x0000000002f43d70 clang::FrontendAction::Execute()
(/tmp/tmp.AN5nkMuk3h/llvm-bad/bin/clang-11+0x2f43d70)
#27 0x0000000002ea3ea3
clang::CompilerInstance::ExecuteAction(clang::FrontendAction&)
(/tmp/tmp.AN5nkMuk3h/llvm-bad/bin/clang-11+0x2ea3ea3)
#28 0x0000000002fd57f4
clang::ExecuteCompilerInvocation(clang::CompilerInstance*)
(/tmp/tmp.AN5nkMuk3h/llvm-bad/bin/clang-11+0x2fd57f4)
#29 0x000000000160dab5 cc1_main(llvm::ArrayRef<char const*>, char const*,
void*) (/tmp/tmp.AN5nkMuk3h/llvm-bad/bin/clang-11+0x160dab5)
#30 0x000000000160bb9c ExecuteCC1Tool(llvm::SmallVectorImpl<char const*>&)
(/tmp/tmp.AN5nkMuk3h/llvm-bad/bin/clang-11+0x160bb9c)
#31 0x0000000002d6d642 void llvm::function_ref<void
()>::callback_fn<clang::driver::CC1Command::Execute(llvm::ArrayRef<llvm::Optional<llvm::StringRef>
<span class="quote">>, std::__cxx11::basic_string<char, std::char_traits<char>,</span >
std::allocator<char> >*, bool*) const::$_1>(long)
(/tmp/tmp.AN5nkMuk3h/llvm-bad/bin/clang-11+0x2d6d642)
#32 0x00000000025cc841
llvm::CrashRecoveryContext::RunSafely(llvm::function_ref<void ()>)
(/tmp/tmp.AN5nkMuk3h/llvm-bad/bin/clang-11+0x25cc841)
#33 0x0000000002d6cc5d
clang::driver::CC1Command::Execute(llvm::ArrayRef<llvm::Optional<llvm::StringRef>
<span class="quote">>, std::__cxx11::basic_string<char, std::char_traits<char>,</span >
std::allocator<char> >*, bool*) const
(/tmp/tmp.AN5nkMuk3h/llvm-bad/bin/clang-11+0x2d6cc5d)
#34 0x0000000002d3b1ab
clang::driver::Compilation::ExecuteCommand(clang::driver::Command const&,
clang::driver::Command const*&) const
(/tmp/tmp.AN5nkMuk3h/llvm-bad/bin/clang-11+0x2d3b1ab)
#35 0x0000000002d3b59a
clang::driver::Compilation::ExecuteJobs(clang::driver::JobList const&,
llvm::SmallVectorImpl<std::pair<int, clang::driver::Command const*> >&) const
(/tmp/tmp.AN5nkMuk3h/llvm-bad/bin/clang-11+0x2d3b59a)
#36 0x0000000002d522d8
clang::driver::Driver::ExecuteCompilation(clang::driver::Compilation&,
llvm::SmallVectorImpl<std::pair<int, clang::driver::Command const*> >&)
(/tmp/tmp.AN5nkMuk3h/llvm-bad/bin/clang-11+0x2d522d8)
#37 0x000000000160b5eb main
(/tmp/tmp.AN5nkMuk3h/llvm-bad/bin/clang-11+0x160b5eb)
#38 0x00007f99da73eb97 __libc_start_main
(/lib/x86_64-linux-gnu/libc.so.6+0x21b97)
#39 0x0000000001608aaa _start
(/tmp/tmp.AN5nkMuk3h/llvm-bad/bin/clang-11+0x1608aaa)
clang-11: error: clang frontend command failed due to signal (use -v to see
invocation)
ClangBuiltLinux clang version 11.0.0 (git://github.com/llvm/llvm-project
5d73f79c54788bc07dabe9ed75c36f12bafe9d28)
Target: riscv64-unknown-linux-gnu
Thread model: posix
InstalledDir: /tmp/tmp.AN5nkMuk3h/llvm-bad/bin
...
creduce spits out:
a() {
if (a)
;
}
This is related to that particular file using -O0
(<a href="https://github.com/torvalds/linux/commit/dfc9fa91938bd0cd5597a3da33d613986149a1e6">https://github.com/torvalds/linux/commit/dfc9fa91938bd0cd5597a3da33d613986149a1e6</a>).
Full preprocessed source and interestingness test available at
<a href="https://github.com/nathanchance/creduce-files/tree/5933b4a47563579c3d50803f5a886a935c6cdf6e/riscv64-crash-5d73f79c54788">https://github.com/nathanchance/creduce-files/tree/5933b4a47563579c3d50803f5a886a935c6cdf6e/riscv64-crash-5d73f79c54788</a></pre>
</div>
</p>
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