#14221: yaml-0.8.23.3 fails to build with -g -------------------------------------+------------------------------------- Reporter: bgamari | Owner: (none) Type: bug | Status: new Priority: normal | Milestone: 8.4.1 Component: Compiler (NCG) | Version: 8.2.1 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: | -------------------------------------+------------------------------------- Old description:
`yaml-0.8.23.3` fails to build with an assembler error, {{{ $ cabal unpack yaml-0.8.23.3 $ ghc Data/Yaml/Internal.hs -O -g [1 of 2] Compiling Text.Libyaml ( Text/Libyaml.hs, Text/Libyaml.o ) [Data.Conduit changed] [2 of 2] Compiling Data.Yaml.Internal ( Data/Yaml/Internal.hs, Data/Yaml/Internal.o ) /tmp/ghc17780_0/ghc_9.s: Assembler messages:
/tmp/ghc17780_0/ghc_9.s:64575:0: error: Error: can't resolve `.LcJO0_entry_end' {*UND* section} - `cJO0_entry' {*UND* section} | 64575 | .quad .LcJO0_entry_end-cJO0_entry | ^ `gcc' failed in phase `Assembler'. (Exit code: 1) }}}
Strangely enough, the symbols `.LcJO0` and `.LcJO0_end` are defined in the resulting assembler, but not `.LcJO0_entry_end` nor `cJO0_entry`. I suspect the backend
New description: `yaml-0.8.23.3` fails to build with an assembler error, {{{ $ cabal unpack yaml-0.8.23.3 $ ghc Data/Yaml/Internal.hs -O -g -keep-tmp-files -ddump-cmm -ddump-to- file -ddump-stg -ddump-cmm-verbose [2 of 2] Compiling Data.Yaml.Internal ( Data/Yaml/Internal.hs, Data/Yaml/Internal.o ) /tmp/ghc26515_0/ghc_6.s: Assembler messages: /tmp/ghc26515_0/ghc_6.s:64491:0: error: Error: can't resolve `.LcsyP_entry_end' {*UND* section} - `csyP_entry' {*UND* section} | 64491 | .quad .LcsyP_entry_end-csyP_entry | ^ `gcc' failed in phase `Assembler'. (Exit code: 1) }}} Strangely enough, there are local symbols `.LcsyP` and `.LcsyP_end` are defined in the resulting assembler (as local labels within `DataziYamlziInternal_zdwisNumeric_info`), but not `.LcsyP_entry_end` nor `csyP_entry`. -- Comment (by bgamari): Here is a minimal reproducer, {{{#!hs module T14221 where import Data.Text as T isNumeric :: Text -> Bool isNumeric t = T.all isNumeric' t && T.any isNumber t where isNumber c = '0' <= c && c <= '9' isNumeric' c = isNumber c || c == 'e' || c == 'E' || c == '.' || c == '-' || c == '+' }}} -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/14221#comment:1 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler