1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
|
{-# LANGUAGE TypeFamilies #-}
module Rules.Libffi (
LibffiDynLibs(..),
needLibffi, askLibffilDynLibs, libffiRules, libffiLibrary, libffiHeaderFiles,
libffiHeaders, libffiSystemHeaders, libffiName
) where
import Hadrian.Utilities
import Packages
import Settings.Builders.Common
import Target
import Utilities
{- Note [Libffi indicating inputs]
First see https://gitlab.haskell.org/ghc/ghc/wikis/Developing-Hadrian for an
explanation of "indicating input". Part of the definition is copied here for
your convenience:
change in the vital output -> change in the indicating inputs
In the case of building libffi `vital output = built libffi library files` and
we can consider the libffi archive file (i.e. the "libffi-tarballs/libffi*.tar.gz"
file) to be the only indicating input besides the build tools (e.g. make).
Note building libffi is split into a few rules, but we also expect that:
no change in the archive file -> no change in the intermediate build artifacts
and so the archive file is still a valid choice of indicating input for
all libffi rules. Hence we can get away with `need`ing only the archive file and
don't have to `need` intermediate build artifacts (besides those to trigger
dependant libffi rules i.e. to generate vital inputs as is noted on the wiki).
It is then safe to `trackAllow` the libffi build directory as is done in
`needLibfffiArchive`.
A disadvantage to this approach is that changing the archive file forces a clean
build of libffi i.e. we cannot incrementally build libffi. This seems like a
performance issue, but is justified as building libffi is fast and the archive
file is rarely changed.
-}
-- | Oracle question type. The oracle returns the list of dynamic
-- libffi library file paths (all but one of which should be symlinks).
newtype LibffiDynLibs = LibffiDynLibs Stage
deriving (Eq, Show, Hashable, Binary, NFData)
type instance RuleResult LibffiDynLibs = [FilePath]
askLibffilDynLibs :: Stage -> Action [FilePath]
askLibffilDynLibs stage = askOracle (LibffiDynLibs stage)
-- | The path to the dynamic library manifest file. The file contains all file
-- paths to libffi dynamic library file paths.
-- The path is calculated but not `need`ed.
dynLibManifest' :: Monad m => m FilePath -> Stage -> m FilePath
dynLibManifest' getRoot stage = do
root <- getRoot
return $ root -/- stageString stage -/- pkgName libffi -/- ".dynamiclibs"
dynLibManifestRules :: Stage -> Rules FilePath
dynLibManifestRules = dynLibManifest' buildRootRules
dynLibManifest :: Stage -> Action FilePath
dynLibManifest = dynLibManifest' buildRoot
-- | Need the (locally built) libffi library.
needLibffi :: Stage -> Action ()
needLibffi stage = do
manifest <- dynLibManifest stage
need [manifest]
-- | Context for @libffi@.
libffiContext :: Stage -> Action Context
libffiContext stage = do
ways <- interpretInContext
(Context stage libffi (error "libffiContext: way not set"))
getLibraryWays
return . Context stage libffi $ if any (wayUnit Dynamic) ways
then dynamic
else vanilla
-- | The name of the (locally built) library
libffiName :: Expr String
libffiName = do
windows <- expr windowsHost
way <- getWay
return $ libffiName' windows (Dynamic `wayUnit` way)
-- | The name of the (locally built) library
libffiName' :: Bool -> Bool -> String
libffiName' windows dynamic
= (if dynamic then "" else "C")
++ (if windows then "ffi-6" else "ffi")
libffiLibrary :: FilePath
libffiLibrary = "inst/lib/libffi.a"
libffiHeaderFiles :: [FilePath]
libffiHeaderFiles = ["ffi.h", "ffitarget.h"]
libffiHeaders :: Stage -> Action [FilePath]
libffiHeaders stage = do
path <- libffiBuildPath stage
return $ fmap ((path -/- "inst/include") -/-) libffiHeaderFiles
libffiSystemHeaders :: Action [FilePath]
libffiSystemHeaders = do
ffiIncludeDir <- setting FfiIncludeDir
return $ fmap (ffiIncludeDir -/-) libffiHeaderFiles
fixLibffiMakefile :: FilePath -> String -> String
fixLibffiMakefile top =
replace "-MD" "-MMD"
. replace "@toolexeclibdir@" "$(libdir)"
. replace "@INSTALL@" ("$(subst ../install-sh," ++ top ++ "/install-sh,@INSTALL@)")
-- TODO: check code duplication w.r.t. ConfCcArgs
configureEnvironment :: Stage -> Action [CmdOption]
configureEnvironment stage = do
context <- libffiContext stage
cFlags <- interpretInContext context $ mconcat
[ cArgs
, getStagedSettingList ConfCcArgs ]
ldFlags <- interpretInContext context ldArgs
sequence [ builderEnvironment "CC" $ Cc CompileC stage
, builderEnvironment "CXX" $ Cc CompileC stage
, builderEnvironment "LD" (Ld stage)
, builderEnvironment "AR" (Ar Unpack stage)
, builderEnvironment "NM" Nm
, builderEnvironment "RANLIB" Ranlib
, return . AddEnv "CFLAGS" $ unwords cFlags ++ " -w"
, return . AddEnv "LDFLAGS" $ unwords ldFlags ++ " -w" ]
-- Need the libffi archive and `trackAllow` all files in the build directory.
-- See [Libffi indicating inputs].
needLibfffiArchive :: FilePath -> Action FilePath
needLibfffiArchive buildPath = do
top <- topDirectory
tarball <- unifyPath
. fromSingleton "Exactly one LibFFI tarball is expected"
<$> getDirectoryFiles top ["libffi-tarballs/libffi*.tar.gz"]
need [top -/- tarball]
trackAllow [buildPath -/- "//*"]
return tarball
libffiRules :: Rules ()
libffiRules = do
_ <- addOracleCache $ \ (LibffiDynLibs stage)
-> readFileLines =<< dynLibManifest stage
forM_ [Stage1 ..] $ \stage -> do
root <- buildRootRules
let path = root -/- stageString stage
libffiPath = path -/- pkgName libffi -/- "build"
-- We set a higher priority because this rule overlaps with the build rule
-- for static libraries 'Rules.Library.libraryRules'.
dynLibMan <- dynLibManifestRules stage
let topLevelTargets = [ libffiPath -/- libffiLibrary
, dynLibMan
]
priority 2 $ topLevelTargets &%> \_ -> do
_ <- needLibfffiArchive libffiPath
context <- libffiContext stage
-- Note this build needs the Makefile, triggering the rules bellow.
build $ target context (Make libffiPath) [] []
-- Find dynamic libraries.
dynLibFiles <- do
windows <- windowsHost
osx <- osxHost
let libfilesDir = libffiPath -/-
(if windows then "inst" -/- "bin" else "inst" -/- "lib")
libffiName'' = libffiName' windows True
dynlibext
| windows = "dll"
| osx = "dylib"
| otherwise = "so"
filepat = "lib" ++ libffiName'' ++ "." ++ dynlibext ++ "*"
liftIO $ getDirectoryFilesIO "." [libfilesDir -/- filepat]
writeFileLines dynLibMan dynLibFiles
putSuccess "| Successfully build libffi."
fmap (libffiPath -/-) ["Makefile.in", "configure" ] &%> \[mkIn, _] -> do
-- Extract libffi tar file
context <- libffiContext stage
removeDirectory libffiPath
tarball <- needLibfffiArchive libffiPath
-- Go from 'libffi-3.99999+git20171002+77e130c.tar.gz' to 'libffi-3.99999'
let libname = takeWhile (/= '+') $ takeFileName tarball
-- Move extracted directory to libffiPath.
root <- buildRoot
removeDirectory (root -/- libname)
actionFinally (do
build $ target context (Tar Extract) [tarball] [path]
moveDirectory (path -/- libname) libffiPath) $
-- And finally:
removeFiles (path) [libname <//> "*"]
top <- topDirectory
fixFile mkIn (fixLibffiMakefile top)
files <- liftIO $ getDirectoryFilesIO "." [libffiPath <//> "*"]
produces files
fmap (libffiPath -/-) ["Makefile", "config.guess", "config.sub"] &%> \[mk, _, _] -> do
_ <- needLibfffiArchive libffiPath
context <- libffiContext stage
-- This need rule extracts the libffi tar file to libffiPath.
need [mk <.> "in"]
-- Configure.
forM_ ["config.guess", "config.sub"] $ \file -> do
copyFile file (libffiPath -/- file)
env <- configureEnvironment stage
buildWithCmdOptions env $
target context (Configure libffiPath) [mk <.> "in"] [mk]
dir <- setting BuildPlatform
files <- liftIO $ getDirectoryFilesIO "." [libffiPath -/- dir <//> "*"]
produces files
|
