#12111: prof build flavour doesn't work -------------------------------------+------------------------------------- Reporter: osa1 | Owner: Type: bug | Status: closed Priority: normal | Milestone: Component: Build System | Version: 8.0.1 Resolution: invalid | 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 thomie): Actually, you do need to fiddle with `-fprof-auto` a little. See this comment in `compiler/ghc.mk`: {{{ # If we're profiling GHC then we want SCCs. However, adding -auto-all # everywhere tends to give a hard-to-read profile, and adds lots of # overhead. A better approach is to proceed top-down; identify the # parts of the compiler of interest, and then add further cost centres # as necessary. Turn on -fprof-auto for individual modules like this: # compiler/main/DriverPipeline_HC_OPTS += -fprof-auto compiler/main/GhcMake_HC_OPTS += -fprof-auto compiler/main/GHC_HC_OPTS += -fprof-auto # or alternatively add {-# OPTIONS_GHC -fprof-auto #-} to the top of # modules you're interested in. }}} -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/12111#comment:4 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler