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| author | Sergei Trofimovich <siarheit@google.com> | 2017-01-29 18:39:48 +0000 |
|---|---|---|
| committer | Sergei Trofimovich <siarheit@google.com> | 2017-01-29 18:48:09 +0000 |
| commit | 34a0205587c8c6017a26ddf7023e91789da2e81b (patch) | |
| tree | 36f82fc0aaaa5d3dd652974bb830767c4ed3f227 /compiler/cmm | |
| parent | bc42e2b03a87e3f6c0d24584382f281c6580801b (diff) | |
| download | haskell-34a0205587c8c6017a26ddf7023e91789da2e81b.tar.gz | |
UNREG: fix "_bytes" string literal forward declaration
Typical UNREG build failure looks like that:
ghc-unreg/includes/Stg.h:226:46: error:
note: in definition of macro 'EI_'
#define EI_(X) extern StgWordArray (X) GNU_ATTRIBUTE(aligned (8))
^
|
226 | #define EI_(X) extern StgWordArray (X) GNU_ATTRIBUTE(aligned (8))
| ^
/tmp/ghc10489_0/ghc_3.hc:1754:6: error:
note: previous definition of 'ghczmprim_GHCziTypes_zdtcTyCon2_bytes' was here
char ghczmprim_GHCziTypes_zdtcTyCon2_bytes[] = "TyCon";
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
|
1754 | char ghczmprim_GHCziTypes_zdtcTyCon2_bytes[] = "TyCon";
| ^
As we see here "_bytes" string literals are defined as 'char []'
array, not 'StgWord []'.
The change special-cases "_bytes" string literals to have
correct declaration type.
Signed-off-by: Sergei Trofimovich <siarheit@google.com>
Diffstat (limited to 'compiler/cmm')
| -rw-r--r-- | compiler/cmm/CLabel.hs | 6 | ||||
| -rw-r--r-- | compiler/cmm/PprC.hs | 3 |
2 files changed, 8 insertions, 1 deletions
diff --git a/compiler/cmm/CLabel.hs b/compiler/cmm/CLabel.hs index ee87ef1b37..2f382039be 100644 --- a/compiler/cmm/CLabel.hs +++ b/compiler/cmm/CLabel.hs @@ -89,6 +89,7 @@ module CLabel ( addLabelSize, foreignLabelStdcallInfo, + isBytesLabel, isForeignLabel, mkCCLabel, mkCCSLabel, @@ -573,6 +574,11 @@ addLabelSize (ForeignLabel str _ src fod) sz addLabelSize label _ = label +-- | Whether label is a top-level string literal +isBytesLabel :: CLabel -> Bool +isBytesLabel (IdLabel _ _ Bytes) = True +isBytesLabel _lbl = False + -- | Whether label is a non-haskell label (defined in C code) isForeignLabel :: CLabel -> Bool isForeignLabel (ForeignLabel _ _ _ _) = True diff --git a/compiler/cmm/PprC.hs b/compiler/cmm/PprC.hs index 6380451cc9..811d9083f3 100644 --- a/compiler/cmm/PprC.hs +++ b/compiler/cmm/PprC.hs @@ -1007,7 +1007,8 @@ pprExternDecl _in_srt lbl hcat [ visibility, label_type lbl, lparen, ppr lbl, text ");" ] where - label_type lbl | isForeignLabel lbl && isCFunctionLabel lbl = text "FF_" + label_type lbl | isBytesLabel lbl = text "B_" + | isForeignLabel lbl && isCFunctionLabel lbl = text "FF_" | isCFunctionLabel lbl = text "F_" | otherwise = text "I_" |