#15967: can't build ghc on Mac with any level of dwarf for base library -------------------------------------+------------------------------------- Reporter: carter | Owner: (none) Type: bug | Status: new Priority: highest | Milestone: 8.6.3 Component: Compiler | Version: 8.6.2 (CodeGen) | Resolution: | Keywords: Operating System: Unknown/Multiple | Architecture: | Unknown/Multiple Type of failure: None/Unknown | Test Case: Blocked By: | Blocking: Related Tickets: | Differential Rev(s): Wiki Page: | -------------------------------------+------------------------------------- Description changed by carter: Old description:

i tried building base in 8.6.2 with -g1 and i get the following error pretty consitently from the system linker

``` ld: in /Users/carter/dev-checkouts/ghc-tree/ghc-8.6.2-checkout- build/libraries/base/dist-install/build/libHSbase-4.12.0.0_p.a(Base.p_o), sectionForAddress(0x8066) address not in any section for architecture x86_64 ```

if i do

``` GhcLibHcOpts += -g1 ``` or higher in the build.mk file, i get this linker error at some point in building ghc or resulting executables .

I'm not sure if its *just* for profiled libs or every lib, but it looks like theres actually no way to handle the number of dwarf sections for large archives on OSX?!

or equivalently, we may need support for more parsimonious dwarf annotations if at all?

point being: if we can't support debug symbols for base on a tier 1 platform, either debug symbols working isn't part of our support SLA for tier 1 platforms, OR its a release blocker we've not had in our validate configuration matrix.

New description: i tried building base in 8.6.2 with -g1 and i get the following error pretty consitently from the system linker {{{ ld: in /Users/carter/dev-checkouts/ghc-tree/ghc-8.6.2-checkout- build/libraries/base/dist-install/build/libHSbase-4.12.0.0_p.a(Base.p_o), sectionForAddress(0x8066) address not in any section for architecture x86_64 }}} if i do {{{ GhcLibHcOpts += -g1 }}} or higher in the build.mk file, i get this linker error at some point in building ghc or resulting executables . I'm not sure if its *just* for profiled libs or every lib, but it looks like theres actually no way to handle the number of dwarf sections for large archives on OSX?! or equivalently, we may need support for more parsimonious dwarf annotations if at all? point being: if we can't support debug symbols for base on a tier 1 platform, either debug symbols working isn't part of our support SLA for tier 1 platforms, OR its a release blocker we've not had in our validate configuration matrix. -- -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/15967#comment:1 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler

#15967: can't build ghc on Mac with any level of dwarf for base library -------------------------------------+------------------------------------- Reporter: carter | Owner: (none) Type: bug | Status: new Priority: highest | Milestone: 8.6.3 Component: Compiler | Version: 8.6.2 (CodeGen) | Resolution: | Keywords: Operating System: Unknown/Multiple | Architecture: | Unknown/Multiple Type of failure: None/Unknown | Test Case: Blocked By: | Blocking: Related Tickets: | Differential Rev(s): Wiki Page: | -------------------------------------+------------------------------------- Comment (by bgamari):

debug symbols working isn't part of our support SLA for tier 1 platforms

Quite right. I make a best-effort to keep them working on Linux because I make use of them. However, we have no support for debugging information on Windows (which doesn't use DWARF) and I, for one, have never attempted to build a debug-enabled GHC on anything but Linux. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/15967#comment:3 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler

#15967: can't build ghc on Mac with any level of dwarf for base library -------------------------------------+------------------------------------- Reporter: carter | Owner: (none) Type: bug | Status: new Priority: highest | Milestone: 8.6.3 Component: Compiler | Version: 8.6.2 (CodeGen) | Resolution: | Keywords: Operating System: Unknown/Multiple | Architecture: | Unknown/Multiple Type of failure: None/Unknown | Test Case: Blocked By: | Blocking: Related Tickets: | Differential Rev(s): Wiki Page: | -------------------------------------+------------------------------------- Comment (by AndreasK):

we have no support for debugging information on Windows (which doesn't use DWARF)

I've got a lot of use out of DWARF/-g on windows. While windows centric tools don't support dwarf in general gdb does as does VTune. So having dwarf support on windows is far from useless. There are also tools to convert dwarf info into windows compatible formats but I haven't had a need to use these yet. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/15967#comment:5 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler