#9549: deriveConstants fails on OpenBSD -------------------------------------+------------------------------------- Reporter: roland | Owner: Type: bug | Status: new Priority: normal | Milestone: Component: Build | Version: 7.9 System | Keywords: Resolution: | Architecture: Unknown/Multiple Operating System: OpenBSD | Difficulty: Unknown Type of failure: Building | Blocked By: GHC failed | Related Tickets: Test Case: | Blocking: | Differential Revisions: | -------------------------------------+------------------------------------- Comment (by kgardas): Hi Roland, I'm afraid replacing nm with objdump is too invasive change. Few months ago various Solaris users including myself were working on extending deriveConstants to work with non-GNU nm and usage of nm -P is what's working on linux, freebsd, windows and solaris. I'm not sure about others but for example objdump is completely missing on Solaris so I would rather prefer to stick to what we do have now in nm functionality. Let me ask, isn't there some other OpenBSD's nm option which may be used to get that working? IMHO not using -P for OpenBSD and/or using some other option is still less invasive change than changing to objdump completely for all other platforms. Thanks for you care about OpenBSD! Karel -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/9549#comment:1 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler

#9549: deriveConstants fails on OpenBSD -------------------------------------+------------------------------------- Reporter: roland | Owner: Type: bug | Status: new Priority: normal | Milestone: Component: Build | Version: 7.9 System | Keywords: Resolution: | Architecture: Unknown/Multiple Operating System: OpenBSD | Difficulty: Unknown Type of failure: Building | Blocked By: GHC failed | Related Tickets: Test Case: | Blocking: | Differential Revisions: | -------------------------------------+------------------------------------- Comment (by roland): Removing the -P option (and adapting the pattern matching) in DeriveConstants.hs yields the following error: {{{ "inplace/bin/ghc-stage1" -static -H32m -O -Iincludes -Iincludes/dist -Iincludes/dist-derivedconstants/header -Iincludes/dist- ghcconstants/header -Irts -Irts/dist/build -DCOMPILING_RTS -this-package- key rts -dcmm-lint -i -irts -irts/dist/build -irts/dist/build/autogen -Irts/dist/build -Irts/dist/build/autogen -O2 -c rts/HeapStackCheck.cmm -o rts/dist/build/HeapStackCheck.o rts/HeapStackCheck.cmm:97:18: parse error on input `[' }}} Apparently this is due to a wrong value being derived for REP_bdescr_link: {{{ $ grep '#define REP_bdescr_link' ./includes/dist- derivedconstants/header/DerivedConstants.h #define REP_bdescr_link b0 }}} ...which in turn comes from nm's output: {{{ $ nm ./includes/dist-derivedconstants/header/tmp.o | grep REP_bdescr_link 00000001 C derivedConstantREP_bdescr_link }}} On the other hand, objdump outputs 9 instead of 1: {{{ $ objdump -t ./includes/dist-derivedconstants/header/tmp.o | grep REP_bdescr_link 0000000000000009 O *COM* 0000000000000001 derivedConstantREP_bdescr_link }}} With this value (9), REP_bdescr_link is derived as 'b64' instead of 'b0' and thus HeapStackCheck.cmm compiles. No matter what options are passed to OpenBSD's nm, it won't output '9' for derivedconstantREP_bdescr_link. Does this have to be handled differently on different systems or is there another way? -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/9549#comment:3 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler

#9549: deriveConstants fails on OpenBSD -------------------------------------+------------------------------------- Reporter: roland | Owner: Type: bug | Status: new Priority: normal | Milestone: Component: Build | Version: 7.9 System | Keywords: Resolution: | Architecture: Unknown/Multiple Operating System: OpenBSD | Difficulty: Unknown Type of failure: Building | Blocked By: GHC failed | Related Tickets: Test Case: | Blocking: | Differential Revisions: Phab:D332 | -------------------------------------+------------------------------------- Changes (by roland): * differential: => Phab:D332 -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/9549#comment:5 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler

#9549: deriveConstants fails on OpenBSD -------------------------------------+------------------------------------- Reporter: roland | Owner: Type: bug | Status: new Priority: normal | Milestone: Component: Build | Version: 7.9 System | Keywords: Resolution: | Architecture: Unknown/Multiple Operating System: OpenBSD | Difficulty: Unknown Type of failure: Building | Blocked By: GHC failed | Related Tickets: Test Case: | Blocking: | Differential Revisions: Phab:D332 | -------------------------------------+------------------------------------- Comment (by Austin Seipp ): In [changeset:"2cc206505d248ac8c706aa85342a895857c9f091/ghc"]: {{{ #!CommitTicketReference repository="ghc" revision="2cc206505d248ac8c706aa85342a895857c9f091" Use objdump instead of nm to derive constants on OpenBSD Summary: OpenBSD's nm doesn't support the -P option and there appears to be no other way to get the desired information from it. Reviewers: kgardas, #ghc, austin Reviewed By: kgardas, #ghc, austin Subscribers: austin, ggreif Projects: #ghc Differential Revision: https://phabricator.haskell.org/D332 GHC Trac Issues: #9549 }}} -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/9549#comment:7 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler