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|
-- -----------------------------------------------------------------------------
--
-- (c) The University of Glasgow, 2011
--
-- Generate code to initialise cost centres
--
-- -----------------------------------------------------------------------------
module ProfInit (profilingInitCode) where
import GhcPrelude
import CLabel
import CostCentre
import DynFlags
import Outputable
import Module
-- -----------------------------------------------------------------------------
-- Initialising cost centres
-- We must produce declarations for the cost-centres defined in this
-- module;
profilingInitCode :: Module -> CollectedCCs -> SDoc
profilingInitCode this_mod (local_CCs, ___extern_CCs, singleton_CCSs)
= sdocWithDynFlags $ \dflags ->
if not (gopt Opt_SccProfilingOn dflags)
then empty
else vcat
$ map emit_cc_decl local_CCs
++ map emit_ccs_decl singleton_CCSs
++ [emit_cc_list local_CCs]
++ [emit_ccs_list singleton_CCSs]
++ [ text "static void prof_init_" <> ppr this_mod
<> text "(void) __attribute__((constructor));"
, text "static void prof_init_" <> ppr this_mod <> text "(void)"
, braces (vcat
[ text "registerCcList" <> parens local_cc_list_label <> semi
, text "registerCcsList" <> parens singleton_cc_list_label <> semi
])
]
where
emit_cc_decl cc =
text "extern CostCentre" <+> cc_lbl <> text "[];"
where cc_lbl = ppr (mkCCLabel cc)
local_cc_list_label = text "local_cc_" <> ppr this_mod
emit_cc_list ccs =
text "static CostCentre *" <> local_cc_list_label <> text "[] ="
<+> braces (vcat $ [ ppr (mkCCLabel cc) <> comma
| cc <- ccs
] ++ [text "NULL"])
<> semi
emit_ccs_decl ccs =
text "extern CostCentreStack" <+> ccs_lbl <> text "[];"
where ccs_lbl = ppr (mkCCSLabel ccs)
singleton_cc_list_label = text "singleton_cc_" <> ppr this_mod
emit_ccs_list ccs =
text "static CostCentreStack *" <> singleton_cc_list_label <> text "[] ="
<+> braces (vcat $ [ ppr (mkCCSLabel cc) <> comma
| cc <- ccs
] ++ [text "NULL"])
<> semi
|
