Re: [GHC] #11395: The via-C code generation backend is incompatible with gcc 5.3.1 on m68k (ELF)

#11395: The via-C code generation backend is incompatible with gcc 5.3.1 on m68k (ELF) --------------------------------------------+------------------------------ Reporter: mkarcher | Owner: Type: bug | Status: new Priority: normal | Milestone: Component: Compiler | Version: 7.10.2 Resolution: | Keywords: Operating System: Linux | Architecture: m68k Type of failure: GHC doesn't work at all | Test Case: Blocked By: | Blocking: Related Tickets: | Differential Rev(s): Wiki Page: | --------------------------------------------+------------------------------ Comment (by Sergei Trofimovich ): In [changeset:"90e1e160b783644c2d3cc0a05e3a804cea549cf9/ghc" 90e1e160/ghc]: {{{ #!CommitTicketReference repository="ghc" revision="90e1e160b783644c2d3cc0a05e3a804cea549cf9" Split external symbol prototypes (EF_) (Trac #11395) Before the patch both Cmm and C symbols were declared with 'EF_' macro: #define EF_(f) extern StgFunPtr f() but for Cmm symbols we know exact prototypes. The patch splits there prototypes in to: #define EFF_(f) void f() /* See Note [External function prototypes] */ #define EF_(f) StgFunPtr f(void) Cmm functions are 'EF_' (External Functions), C functions are 'EFF_' (External Foreign Functions). While at it changed external C function prototype to return 'void' to workaround ghc bug on m68k. Described in detail in Trac #11395. This makes simple tests work on m68k-linux target! Thanks to Michael Karcher for awesome analysis happening in Trac #11395. Signed-off-by: Sergei Trofimovich Test Plan: ran "hello world" on m68k successfully Reviewers: simonmar, austin, bgamari Reviewed By: bgamari Subscribers: thomie Differential Revision: https://phabricator.haskell.org/D1975 GHC Trac Issues: #11395 }}} -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/11395#comment:22 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler