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Emscripten + pdfium: MCStreamer::SwitchSection: Assertion `Section && "Cannot switch to a null section!"' failed #44900

Closed Quuxplusone closed 4 years ago

Quuxplusone commented 4 years ago
Bugzilla Link PR45930
Status RESOLVED WONTFIX
Importance P normal
Reported by Andrew de los Reyes (adlr@gmail.com)
Reported on 2020-05-14 15:31:47 -0700
Last modified on 2020-09-20 13:47:37 -0700
Version trunk
Hardware PC Linux
CC dschuff@google.com, htmldeveloper@gmail.com, llvm-bugs@lists.llvm.org, neeilans@live.com, richard-llvm@metafoo.co.uk, sbc@chromium.org
Fixed by commit(s)
Attachments bio-68852d.zip (122284 bytes, application/zip)
Blocks
Blocked by
See also 
Created attachment 23488
Requested files (.c, .sh) to repro

Trying to compile pdfium w/ latest emscripten SDK. I'm getting this crash on
the very first file I'm compiling. (Note that I was able to compile other
software w/ this setup fine, just failing on pdfium now)

Log in the terminal:

+++ dirname ../../formulatenext/build_pdfium.sh
++ cd ../../formulatenext
++ pwd
+ BASE_DIR=/mnt/ext/adlr/FN/formulatenext
++ readlink -f /mnt/ext/adlr/FN/formulatenext/depot_tools
+ export
PATH=/mnt/ext/adlr/FN/emsdk:/mnt/ext/adlr/FN/emsdk/upstream/emscripten:/mnt/ext/adlr/FN/emsdk/node/12.9.1_64bit/bin:/Users/adlr/narwhal/bin:/Applications/Graphviz.app/Contents/MacOS:/usr/local/google/home/adlr/depot_tools:/usr/lib/google-golang/bin:/usr/local/buildtools/java/jdk/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/opt/local/bin:/usr/local/google/home/adlr/bin:/mnt/ext/adlr/FN/formulatenext/depot_tools
+
PATH=/mnt/ext/adlr/FN/emsdk:/mnt/ext/adlr/FN/emsdk/upstream/emscripten:/mnt/ext/adlr/FN/emsdk/node/12.9.1_64bit/bin:/Users/adlr/narwhal/bin:/Applications/Graphviz.app/Contents/MacOS:/usr/local/google/home/adlr/depot_tools:/usr/lib/google-golang/bin:/usr/local/buildtools/java/jdk/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/opt/local/bin:/usr/local/google/home/adlr/bin:/mnt/ext/adlr/FN/formulatenext/depot_tools
+ cd /mnt/ext/adlr/FN/formulatenext/../pdfium/pdfium
+ BUILD_DIR=out/Debug
+ gn --export-compile-commands gen out/Debug '--args=is_debug=false
is_official_build=false   use_goma=false   pdf_use_skia=false
pdf_use_skia_paths=false   pdf_enable_xfa=false   pdf_enable_v8=false
pdf_is_standalone=true   is_component_build=false
clang_use_chrome_plugins=false   use_libjpeg_turbo=true
use_system_libpng=false   use_glib=false   target_os="wasm"   target_cpu="wasm"
pdf_is_complete_lib=true   '
Generating compile_commands took 14ms
Done. Made 120 targets from 78 files in 93ms
++ which ninja
+ NINJA=/usr/local/google/home/adlr/depot_tools/ninja
+ /usr/local/google/home/adlr/depot_tools/ninja -j 1 -C out/Debug pdfium
ninja: Entering directory `out/Debug'
[1/779] CC obj/third_party/fx_libopenjpeg/bio.o
FAILED: obj/third_party/fx_libopenjpeg/bio.o
emcc -MMD -MF obj/third_party/fx_libopenjpeg/bio.o.d -D_GNU_SOURCE -
D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -
DCR_CLANG_REVISION=\"n346557-4e0d9925-3\" -DNDEBUG -DNVALGRIND -
DDYNAMIC_ANNOTATIONS_ENABLED=0 -DPNG_PREFIX -DPNG_USE_READ_MACROS -DOPJ_STATIC -
I../.. -Igen -I../.. -fno-strict-aliasing --param=ssp-buffer-size=4 -fstack-
protector -funwind-tables -fcolor-diagnostics -fmerge-all-constants -Wno-
builtin-macro-redefined -D__DATE__= -D__TIME__= -D__TIMESTAMP__= -no-canonical-
prefixes -O2 -fno-ident -fdata-sections -ffunction-sections -fomit-frame-
pointer -g2 -Xclang -debug-info-kind=constructor -ggnu-pubnames -ftrivial-auto-
var-init=pattern -fvisibility=hidden -Wheader-hygiene -Wstring-conversion -
Wtautological-overlap-compare -Werror -Wall -Wno-unused-variable -Wno-
misleading-indentation -Wno-missing-field-initializers -Wno-unused-parameter -
Wno-c++11-narrowing -Wno-unneeded-internal-declaration -Wno-undefined-var-
template -Wno-implicit-int-float-conversion -Wno-final-dtor-non-final-class -
Wno-builtin-assume-aligned-alignment -Wno-deprecated-copy -Wno-non-c-typedef-
for-linkage -std=c11 -Wno-implicit-fallthrough -c
../../third_party/libopenjpeg20/bio.c -o obj/third_party/fx_libopenjpeg/bio.o
clang: /b/s/w/ir/cache/builder/emscripten-releases/llvm-
project/llvm/lib/MC/MCStreamer.cpp:1098: virtual void
llvm::MCStreamer::SwitchSection(llvm::MCSection *, const llvm::MCExpr *):
Assertion `Section && "Cannot switch to a null section!"' failed.
PLEASE submit a bug report to https://bugs.llvm.org/ and include the crash
backtrace, preprocessed source, and associated run script.
Stack dump:
0.  Program arguments: /mnt/ext/adlr/FN/emsdk/upstream/bin/clang -target wasm32-
unknown-emscripten -D__EMSCRIPTEN_major__=1 -D__EMSCRIPTEN_minor__=39 -
D__EMSCRIPTEN_tiny__=15 -D_LIBCPP_ABI_VERSION=2 -Dunix -D__unix -D__unix__ -
Werror=implicit-function-declaration -Xclang -nostdsysteminc -Xclang -
isystem/mnt/ext/adlr/FN/emsdk/upstream/emscripten/system/include/compat -Xclang
-isystem/mnt/ext/adlr/FN/emsdk/upstream/emscripten/system/include -Xclang -
isystem/mnt/ext/adlr/FN/emsdk/upstream/emscripten/system/include/libc -Xclang -
isystem/mnt/ext/adlr/FN/emsdk/upstream/emscripten/system/lib/libc/musl/arch/emscripten
-Xclang -isystem/mnt/ext/adlr/FN/emsdk/upstream/emscripten/system/local/include
-Xclang -isystem/usr/local/google/home/adlr/.emscripten_cache/wasm/include -
DEMSCRIPTEN -fignore-exceptions -MMD -MF obj/third_party/fx_libopenjpeg/bio.o.d
-D_GNU_SOURCE -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -
DCR_CLANG_REVISION="n346557-4e0d9925-3" -DNDEBUG -DNVALGRIND -
DDYNAMIC_ANNOTATIONS_ENABLED=0 -DPNG_PREFIX -DPNG_USE_READ_MACROS -DOPJ_STATIC -
I../.. -Igen -I../.. -fno-strict-aliasing --param=ssp-buffer-size=4 -fstack-
protector -funwind-tables -fcolor-diagnostics -fmerge-all-constants -Wno-
builtin-macro-redefined -D__DATE__= -D__TIME__= -D__TIMESTAMP__= -no-canonical-
prefixes -O2 -fno-ident -fdata-sections -ffunction-sections -fomit-frame-
pointer -Xclang -debug-info-kind=constructor -ggnu-pubnames -ftrivial-auto-var-
init=pattern -fvisibility=hidden -Wheader-hygiene -Wstring-conversion -
Wtautological-overlap-compare -Werror -Wall -Wno-unused-variable -Wno-
misleading-indentation -Wno-missing-field-initializers -Wno-unused-parameter -
Wno-c++11-narrowing -Wno-unneeded-internal-declaration -Wno-undefined-var-
template -Wno-implicit-int-float-conversion -Wno-final-dtor-non-final-class -
Wno-builtin-assume-aligned-alignment -Wno-deprecated-copy -Wno-non-c-typedef-
for-linkage -std=c11 -Wno-implicit-fallthrough -c
../../third_party/libopenjpeg20/bio.c -Xclang -
isystem/mnt/ext/adlr/FN/emsdk/upstream/emscripten/system/include/SDL -c -o
obj/third_party/fx_libopenjpeg/bio.o -mllvm -combiner-global-alias-
analysis=false -mllvm -enable-emscripten-sjlj -mllvm -disable-lsr
1.  <eof> parser at end of file
2.  Code generation
 #0 0x00007f645ae59bf4 PrintStackTraceSignalHandler(void*) (/mnt/ext/adlr/FN/emsdk/upstream/bin/../lib/libLLVM-11git.so+0x7cdbf4)
 #1 0x00007f645ae5783e llvm::sys::RunSignalHandlers() (/mnt/ext/adlr/FN/emsdk/upstream/bin/../lib/libLLVM-11git.so+0x7cb83e)
 #2 0x00007f645ae58d9d llvm::sys::CleanupOnSignal(unsigned long) (/mnt/ext/adlr/FN/emsdk/upstream/bin/../lib/libLLVM-11git.so+0x7ccd9d)
 #3 0x00007f645ad90553 (anonymous namespace)::CrashRecoveryContextImpl::HandleCrash(int, unsigned long) (/mnt/ext/adlr/FN/emsdk/upstream/bin/../lib/libLLVM-11git.so+0x704553)
 #4 0x00007f645ad9068c CrashRecoverySignalHandler(int) (/mnt/ext/adlr/FN/emsdk/upstream/bin/../lib/libLLVM-11git.so+0x70468c)
 #5 0x00007f645a64c520 __restore_rt (/lib/x86_64-linux-gnu/libpthread.so.0+0x13520)
 #6 0x00007f6456c94f61 raise /build/glibc-oCLvUT/glibc-2.29/signal/../sysdeps/unix/sysv/linux/raise.c:51:1
 #7 0x00007f6456c80535 abort /build/glibc-oCLvUT/glibc-2.29/stdlib/abort.c:81:7
 #8 0x00007f6456c8040f _nl_load_domain /build/glibc-oCLvUT/glibc-2.29/intl/loadmsgcat.c:1177:9
 #9 0x00007f6456c8db92 (/lib/x86_64-linux-gnu/libc.so.6+0x32b92)
#10 0x00007f645c354164 llvm::MCStreamer::SwitchSection(llvm::MCSection*,
llvm::MCExpr const*) (/mnt/ext/adlr/FN/emsdk/upstream/bin/../lib/libLLVM-
11git.so+0x1cc8164)
#11 0x00007f645b724954 llvm::DwarfDebug::emitDebugPubSections()
(/mnt/ext/adlr/FN/emsdk/upstream/bin/../lib/libLLVM-11git.so+0x1098954)
#12 0x00007f645b6f2c73 llvm::AsmPrinter::doFinalization(llvm::Module&)
(/mnt/ext/adlr/FN/emsdk/upstream/bin/../lib/libLLVM-11git.so+0x1066c73)
#13 0x00007f645afb7485 llvm::FPPassManager::doFinalization(llvm::Module&)
(/mnt/ext/adlr/FN/emsdk/upstream/bin/../lib/libLLVM-11git.so+0x92b485)
#14 0x00007f645afb7b4a llvm::legacy::PassManagerImpl::run(llvm::Module&)
(/mnt/ext/adlr/FN/emsdk/upstream/bin/../lib/libLLVM-11git.so+0x92bb4a)
#15 0x00007f6458731058 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> >)
(/mnt/ext/adlr/FN/emsdk/upstream/bin/../lib/libclang-cpp.so.11git+0x17b7058)
#16 0x00007f6458a2bf4d
clang::BackendConsumer::HandleTranslationUnit(clang::ASTContext&)
(/mnt/ext/adlr/FN/emsdk/upstream/bin/../lib/libclang-cpp.so.11git+0x1ab1f4d)
#17 0x00007f6457821593 clang::ParseAST(clang::Sema&, bool, bool)
(/mnt/ext/adlr/FN/emsdk/upstream/bin/../lib/libclang-cpp.so.11git+0x8a7593)
#18 0x00007f6459239440 clang::FrontendAction::Execute()
(/mnt/ext/adlr/FN/emsdk/upstream/bin/../lib/libclang-cpp.so.11git+0x22bf440)
#19 0x00007f64591d3c63
clang::CompilerInstance::ExecuteAction(clang::FrontendAction&)
(/mnt/ext/adlr/FN/emsdk/upstream/bin/../lib/libclang-cpp.so.11git+0x2259c63)
#20 0x00007f64592a98d3
clang::ExecuteCompilerInvocation(clang::CompilerInstance*)
(/mnt/ext/adlr/FN/emsdk/upstream/bin/../lib/libclang-cpp.so.11git+0x232f8d3)
#21 0x0000000000410d88 cc1_main(llvm::ArrayRef<char const*>, char const*,
void*) (/mnt/ext/adlr/FN/emsdk/upstream/bin/clang+0x410d88)
#22 0x000000000040ef7c ExecuteCC1Tool(llvm::SmallVectorImpl<char const*>&)
(/mnt/ext/adlr/FN/emsdk/upstream/bin/clang+0x40ef7c)
#23 0x00007f6458e85ad2 void llvm::function_ref<void
()>::callback_fn<clang::driver::CC1Command::Execute(llvm::ArrayRef<llvm::Optional<llvm::StringRef>
>, std::__cxx11::basic_string<char, std::char_traits<char>,
std::allocator<char> >*, bool*) const::$_1>(long)
(/mnt/ext/adlr/FN/emsdk/upstream/bin/../lib/libclang-cpp.so.11git+0x1f0bad2)
#24 0x00007f645ad90471
llvm::CrashRecoveryContext::RunSafely(llvm::function_ref<void ()>)
(/mnt/ext/adlr/FN/emsdk/upstream/bin/../lib/libLLVM-11git.so+0x704471)
#25 0x00007f6458e850dd
clang::driver::CC1Command::Execute(llvm::ArrayRef<llvm::Optional<llvm::StringRef>
>, std::__cxx11::basic_string<char, std::char_traits<char>,
std::allocator<char> >*, bool*) const
(/mnt/ext/adlr/FN/emsdk/upstream/bin/../lib/libclang-cpp.so.11git+0x1f0b0dd)
#26 0x00007f6458e53f8b
clang::driver::Compilation::ExecuteCommand(clang::driver::Command const&,
clang::driver::Command const*&) const
(/mnt/ext/adlr/FN/emsdk/upstream/bin/../lib/libclang-cpp.so.11git+0x1ed9f8b)
#27 0x00007f6458e54377
clang::driver::Compilation::ExecuteJobs(clang::driver::JobList const&,
llvm::SmallVectorImpl<std::pair<int, clang::driver::Command const*> >&) const
(/mnt/ext/adlr/FN/emsdk/upstream/bin/../lib/libclang-cpp.so.11git+0x1eda377)
#28 0x00007f6458e6c9c8
clang::driver::Driver::ExecuteCompilation(clang::driver::Compilation&,
llvm::SmallVectorImpl<std::pair<int, clang::driver::Command const*> >&)
(/mnt/ext/adlr/FN/emsdk/upstream/bin/../lib/libclang-cpp.so.11git+0x1ef29c8)
#29 0x000000000040e9a3 main (/mnt/ext/adlr/FN/emsdk/upstream/bin/clang+0x40e9a3)
#30 0x00007f6456c81bbb __libc_start_main /build/glibc-oCLvUT/glibc-
2.29/csu/../csu/libc-start.c:342:3
#31 0x000000000040be0a _start
(/mnt/ext/adlr/FN/emsdk/upstream/bin/clang+0x40be0a)
clang: error: clang frontend command failed due to signal (use -v to see
invocation)
clang version 11.0.0 (/b/s/w/ir/cache/git/chromium.googlesource.com-external-
github.com-llvm-llvm--project 57d361bd2f3668eefa7028ad4a2d616317ed437c)
Target: wasm32-unknown-emscripten
Thread model: posix
InstalledDir: /mnt/ext/adlr/FN/emsdk/upstream/bin
  Registered Targets:
    wasm32 - WebAssembly 32-bit
    wasm64 - WebAssembly 64-bit
    x86    - 32-bit X86: Pentium-Pro and above
    x86-64 - 64-bit X86: EM64T and AMD64
clang: note: diagnostic msg:
********************

PLEASE ATTACH THE FOLLOWING FILES TO THE BUG REPORT:
Preprocessed source(s) and associated run script(s) are located at:
clang: note: diagnostic msg: /tmp/bio-68852d.c
clang: note: diagnostic msg: /tmp/bio-68852d.sh
clang: note: diagnostic msg:

********************
emcc: error: '/mnt/ext/adlr/FN/emsdk/upstream/bin/clang -target wasm32-unknown-
emscripten -D__EMSCRIPTEN_major__=1 -D__EMSCRIPTEN_minor__=39 -
D__EMSCRIPTEN_tiny__=15 -D_LIBCPP_ABI_VERSION=2 -Dunix -D__unix -D__unix__ -
Werror=implicit-function-declaration -Xclang -nostdsysteminc -Xclang -
isystem/mnt/ext/adlr/FN/emsdk/upstream/emscripten/system/include/compat -Xclang
-isystem/mnt/ext/adlr/FN/emsdk/upstream/emscripten/system/include -Xclang -
isystem/mnt/ext/adlr/FN/emsdk/upstream/emscripten/system/include/libc -Xclang -
isystem/mnt/ext/adlr/FN/emsdk/upstream/emscripten/system/lib/libc/musl/arch/emscripten
-Xclang -isystem/mnt/ext/adlr/FN/emsdk/upstream/emscripten/system/local/include
-Xclang -isystem/usr/local/google/home/adlr/.emscripten_cache/wasm/include -
DEMSCRIPTEN -fignore-exceptions -MMD -MF obj/third_party/fx_libopenjpeg/bio.o.d
-D_GNU_SOURCE -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -
DCR_CLANG_REVISION="n346557-4e0d9925-3" -DNDEBUG -DNVALGRIND -
DDYNAMIC_ANNOTATIONS_ENABLED=0 -DPNG_PREFIX -DPNG_USE_READ_MACROS -DOPJ_STATIC -
I../.. -Igen -I../.. -fno-strict-aliasing --param=ssp-buffer-size=4 -fstack-
protector -funwind-tables -fcolor-diagnostics -fmerge-all-constants -Wno-
builtin-macro-redefined -D__DATE__= -D__TIME__= -D__TIMESTAMP__= -no-canonical-
prefixes -O2 -fno-ident -fdata-sections -ffunction-sections -fomit-frame-
pointer -Xclang -debug-info-kind=constructor -ggnu-pubnames -ftrivial-auto-var-
init=pattern -fvisibility=hidden -Wheader-hygiene -Wstring-conversion -
Wtautological-overlap-compare -Werror -Wall -Wno-unused-variable -Wno-
misleading-indentation -Wno-missing-field-initializers -Wno-unused-parameter -
Wno-c++11-narrowing -Wno-unneeded-internal-declaration -Wno-undefined-var-
template -Wno-implicit-int-float-conversion -Wno-final-dtor-non-final-class -
Wno-builtin-assume-aligned-alignment -Wno-deprecated-copy -Wno-non-c-typedef-
for-linkage -std=c11 -Wno-implicit-fallthrough -c
../../third_party/libopenjpeg20/bio.c -Xclang -
isystem/mnt/ext/adlr/FN/emsdk/upstream/emscripten/system/include/SDL -c -o
obj/third_party/fx_libopenjpeg/bio.o -mllvm -combiner-global-alias-
analysis=false -mllvm -enable-emscripten-sjlj -mllvm -disable-lsr' failed (254)
ninja: build stopped: subcommand failed.
Quuxplusone commented 4 years ago

Attached bio-68852d.zip (122284 bytes, application/zip): Requested files (.c, .sh) to repro

Quuxplusone commented 4 years ago

I'm not sure how I missed this before, but I traced this to the -debug-info-kind=constructor argument. Removing that solves the issue. Apologies!