[PATCH] D87544: [CFGuard] Add address-taken IAT tables and delay-load support

Thu Oct 1 10:25:11 PDT 2020

aeubanks added a comment.

I believe this is causing https://crbug.com/1134215:

  ninja -t msvc -e environment.x86 -- ..\..\third_party\llvm-build\Release+Asserts\bin\lld-link.exe /nologo -libpath:..\..\third_party\llvm-build\Release+Asserts\lib\clang\12.0.0\lib\windows -libpath:..\..\third_party\depot_tools\win_toolchain\vs_files\a687d8e2e4114d9015eb550e1b156af21381faac\VC\Tools\MSVC\14.26.28801\lib\x86 -libpath:..\..\third_party\depot_tools\win_toolchain\vs_files\a687d8e2e4114d9015eb550e1b156af21381faac\win_sdk\Lib\10.0.19041.0\um\x86 -libpath:..\..\third_party\depot_tools\win_toolchain\vs_files\a687d8e2e4114d9015eb550e1b156af21381faac\win_sdk\Lib\10.0.19041.0\ucrt\x86 -libpath:..\..\third_party\depot_tools\win_toolchain\vs_files\a687d8e2e4114d9015eb550e1b156af21381faac\VC\Tools\MSVC\14.26.28801\atlmfc\lib\x86 /IMPLIB:./browser_switcher_bho.dll.lib /DLL /OUT:./browser_switcher_bho.dll /PDB:./browser_switcher_bho.dll.pdb @./browser_switcher_bho.dll.rsp
  unknown symbol kind
  UNREACHABLE executed at C:\b\s\w\ir\cache\builder\src\third_party\llvm\lld\COFF\Symbols.h:443!
  PLEASE submit a bug report to https://crbug.com and run tools/clang/scripts/process_crashreports.py (only works inside Google) which will upload a report and include the crash backtrace.
  Stack dump:
  0.	Program arguments: ..\..\third_party\llvm-build\Release+Asserts\bin\lld-link.exe /nologo -libpath:..\..\third_party\llvm-build\Release+Asserts\lib\clang\12.0.0\lib\windows -libpath:..\..\third_party\depot_tools\win_toolchain\vs_files\a687d8e2e4114d9015eb550e1b156af21381faac\VC\Tools\MSVC\14.26.28801\lib\x86 -libpath:..\..\third_party\depot_tools\win_toolchain\vs_files\a687d8e2e4114d9015eb550e1b156af21381faac\win_sdk\Lib\10.0.19041.0\um\x86 -libpath:..\..\third_party\depot_tools\win_toolchain\vs_files\a687d8e2e4114d9015eb550e1b156af21381faac\win_sdk\Lib\10.0.19041.0\ucrt\x86 -libpath:..\..\third_party\depot_tools\win_toolchain\vs_files\a687d8e2e4114d9015eb550e1b156af21381faac\VC\Tools\MSVC\14.26.28801\atlmfc\lib\x86 /IMPLIB:./browser_switcher_bho.dll.lib /DLL /OUT:./browser_switcher_bho.dll /PDB:./browser_switcher_bho.dll.pdb @./browser_switcher_bho.dll.rsp 
   #0 0x00007ff7471970b5 HandleAbort C:\b\s\w\ir\cache\builder\src\third_party\llvm\llvm\lib\Support\Windows\Signals.inc:408:0
   #1 0x00007ff7495b0063 raise minkernel\crts\ucrt\src\appcrt\misc\signal.cpp:547:0
   #2 0x00007ff7495aa9d0 abort minkernel\crts\ucrt\src\appcrt\startup\abort.cpp:71:0
   #3 0x00007ff74716d416 llvm::llvm_unreachable_internal(char const *, char const *, unsigned int) C:\b\s\w\ir\cache\builder\src\third_party\llvm\llvm\lib\Support\ErrorHandling.cpp:213:0
   #4 0x00007ff7471f067c lld::coff::Defined::getChunk(void) C:\b\s\w\ir\cache\builder\src\third_party\llvm\lld\COFF\Symbols.h:443:0
   #5 0x00007ff747244292 addSymbolToRVASet C:\b\s\w\ir\cache\builder\src\third_party\llvm\lld\COFF\Writer.cpp:1542:0
   #6 0x00007ff747245187 `anonymous namespace'::Writer::createGuardCFTables C:\b\s\w\ir\cache\builder\src\third_party\llvm\lld\COFF\Writer.cpp:1655:0
   #7 0x00007ff747246283 `anonymous namespace'::Writer::createMiscChunks C:\b\s\w\ir\cache\builder\src\third_party\llvm\lld\COFF\Writer.cpp:988:0
   #8 0x00007ff74724bbb8 `anonymous namespace'::Writer::run C:\b\s\w\ir\cache\builder\src\third_party\llvm\lld\COFF\Writer.cpp:614:0
   #9 0x00007ff74724d439 lld::coff::writeResult(void) C:\b\s\w\ir\cache\builder\src\third_party\llvm\lld\COFF\Writer.cpp:311:0
  #10 0x00007ff7471f852a lld::coff::LinkerDriver::link(class llvm::ArrayRef<char const *>) C:\b\s\w\ir\cache\builder\src\third_party\llvm\lld\COFF\Driver.cpp:2143:0
  #11 0x00007ff7471f8af0 lld::coff::link(class llvm::ArrayRef<char const *>, bool, class llvm::raw_ostream &, class llvm::raw_ostream &) C:\b\s\w\ir\cache\builder\src\third_party\llvm\lld\COFF\Driver.cpp:96:0
  #12 0x00007ff747158898 lldMain C:\b\s\w\ir\cache\builder\src\third_party\llvm\lld\tools\lld\lld.cpp:155:0
  #13 0x00007ff747158ce7 main C:\b\s\w\ir\cache\builder\src\third_party\llvm\lld\tools\lld\lld.cpp:211:0
  #14 0x00007ff749583a04 __scrt_common_main_seh d:\A01\_work\6\s\src\vctools\crt\vcstartup\src\startup\exe_common.inl:288:0
  #15 0x00007ff9c0982774 (C:\Windows\System32\KERNEL32.DLL+0x12774)
  #16 0x00007ff9c0a90d51 (C:\Windows\SYSTEM32\ntdll.dll+0x70d51)

Repository:
  rG LLVM Github Monorepo

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  https://reviews.llvm.org/D87544/new/

https://reviews.llvm.org/D87544