#15207: bad dwarf frame in stgRun.c when compiled with with gcc on mac and assembled by as/gcc/clang (aka apple clang assembler) -------------------------------------+------------------------------------- Reporter: carter | Owner: (none) Type: bug | Status: infoneeded Priority: normal | Milestone: 8.8.1 Component: Runtime System | Version: 8.4.3 Resolution: | Keywords: Operating System: MacOS X | Architecture: | Unknown/Multiple Type of failure: None/Unknown | Test Case: Blocked By: | Blocking: Related Tickets: | Differential Rev(s): Phab:D4781 Wiki Page: | -------------------------------------+------------------------------------- Comment (by carter): So a few things: ben's patch on phabricator is inccorect, it needs to be changed as follows {{{ -#if defined(__clang__) + #if !defined(__clang__) && defined(darwin_HOST_OS) #define NEED_EXPLICIT_CFI_START_END #endif }}} and the comment / explanation there is wrong the issue isn't building the file with CLANG. its building the inline asm with GCC, but using the OSX assembler. even with the above tweak (which isolates the change to OSX and using gcc there), linking the RTS including one of the STGCRUN object files triggers an Assert in the system linker, both the xcode 10 cli tools LD and the LLVM 7 LD (ld.lld) both have this validation aasert -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/15207#comment:35 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler