1 patch for repository http://darcs.haskell.org/ghc-7.0/ghc:
Tue Dec 21 08:32:33 EST 2010 gwri...@antiope.com * Fix #4829 (build does not respect --with-gcc option) This patch fixes what seems to be the last problem with the --with-gcc option. On OS X, we need to pass the path to gcc to dtrace as the preprocessor. (Internally, dtrace on OS X sets the default preprocessor to /usr/bin/gcc.) ATM, dtrace is only supported on OS X, so we don't need any conditionalization. If dtrace is ported to other platforms, we might need to change this. However, usage on other platforms will probably be similar to OS X, since many of Apple's changes are to use the gnu toolchain instead of the Sun toolchain.
New patches: [Fix #4829 (build does not respect --with-gcc option) gwri...@antiope.com**20101221133233 Ignore-this: 37918feb82f911c2beb75915b6e8b97b This patch fixes what seems to be the last problem with the --with-gcc option. On OS X, we need to pass the path to gcc to dtrace as the preprocessor. (Internally, dtrace on OS X sets the default preprocessor to /usr/bin/gcc.) ATM, dtrace is only supported on OS X, so we don't need any conditionalization. If dtrace is ported to other platforms, we might need to change this. However, usage on other platforms will probably be similar to OS X, since many of Apple's changes are to use the gnu toolchain instead of the Sun toolchain. ] { hunk ./rts/ghc.mk 444 rts_CC_OPTS += -DDTRACE rts_HC_OPTS += -DDTRACE +# Apple's dtrace (the only one supported by ghc at the moment) uses +# gcc as its preprocessor. If gcc isn't at /usr/bin/gcc, or we need +# to force it to use a different gcc, we need to give the path in +# the option cpppath. + DTRACEPROBES_SRC = rts/RtsProbes.d $(DTRACEPROBES_H): $(DTRACEPROBES_SRC) includes/ghcplatform.h | $(dir $@)/. hunk ./rts/ghc.mk 451 - "$(DTRACE)" $(filter -I%,$(rts_CC_OPTS)) -C -h -o $@ -s $< + "$(DTRACE)" $(filter -I%,$(rts_CC_OPTS)) -C -x cpppath=$(WhatGccIsCalled) -h -o $@ -s $< endif } Context: [Fix checkBinaries on OS X Ian Lynagh <ig...@earth.li>**20101216201121] [Use "-perm -u+x" rather than "-executable" to find executables Ian Lynagh <ig...@earth.li>**20101216145235 On Windows, -executable is matching the html docs. ] [Remove a debugging print Ian Lynagh <ig...@earth.li>**20101216011459] [Add release notes for 7.0.2 Ian Lynagh <ig...@earth.li>**20101215165746 Ignore-this: 686eeb9b0b301444a2ab0ed81e9d1d76 ] [Wibble to InstEnv.instanceHead simo...@microsoft.com**20101214082939 Ignore-this: 851db517f8638a0aeb7ad461298f7e9f Fixes an accidental glitch in T1835 ] [MERGED: Fix recursive superclasses (again). Fixes Trac #4809. Ian Lynagh <ig...@earth.li>**20101214180026 simo...@microsoft.com**20101213171511 Ignore-this: b91651397918fd8f0183812f9a070073 This patch finally deals with the super-delicate question of superclases in possibly-recursive dictionaries. The key idea is the DFun Superclass Invariant (see TcInstDcls): In the body of a DFun, every superclass argument to the returned dictionary is either * one of the arguments of the DFun, or * constant, bound at top level To establish the invariant, we add new "silent" superclass argument(s) to each dfun, so that the dfun does not do superclass selection internally. There's a bit of hoo-ha to make sure that we don't print those silent arguments in error messages; a knock on effect was a change in interface-file format. A second change is that instead of the complex and fragile "self dictionary binding" in TcInstDcls and TcClassDcl, using the same mechanism for existential pattern bindings. See Note [Subtle interaction of recursion and overlap] in TcInstDcls and Note [Binding when looking up instances] in InstEnv. Main notes are here: * Note [Silent Superclass Arguments] in TcInstDcls, including the DFun Superclass Invariant Main code changes are: * The code for MkId.mkDictFunId and mkDictFunTy * DFunUnfoldings get a little more complicated; their arguments are a new type DFunArg (in CoreSyn) * No "self" argument in tcInstanceMethod * No special tcSimplifySuperClasss * No "dependents" argument to EvDFunApp IMPORTANT It turns out that it's quite tricky to generate the right DFunUnfolding for a specialised dfun, when you use SPECIALISE INSTANCE. For now I've just commented it out (in DsBinds) but that'll lose some optimisation, and I need to get back to this. ] [Add libstdc++-4.5.0-1-mingw32-dll-6.tar.lzma to mingw tarballs Ian Lynagh <ig...@earth.li>**20101213223153] [GHCi linker: Assume non-Haskell libraries are dynamic libs Ian Lynagh <ig...@earth.li>**20101213124930 Ignore-this: aa153a8f6e309c7b3dae7e46bb7a9583 This works around a segfault we get when trying to load libiconv.a on some platforms. ] [Make the case-to-let transformation a little less eager simo...@microsoft.com**20101208172251 Ignore-this: 55eaa1b5753af31aeb32ec792cb6b662 See Note [Case elimination: lifted case]. Thanks to Roman for identifying this case. ] [Fix Trac #4534: renamer bug simo...@microsoft.com**20101210084530 Ignore-this: 8163bfa3a56344cfe89ad17c62e9655d The renamer wasn't attaching the right used-variables to a TransformStmt constructor. The real modification is in RnExpr; the rest is just pretty-printing and white space. ] [Only reset the event log if logging is turned on (addendum to #4512) Simon Marlow <marlo...@gmail.com>**20101210093951 Ignore-this: c9f85f0de2b11a37337672fba59aecc6 ] [allocate enough room for the longer filename (addendum to #4512) Simon Marlow <marlo...@gmail.com>**20101210093906 Ignore-this: 270dc0219d98f1e0f9e006102ade7087 ] [warning fix: don't redefine BLOCKS_PER_MBLOCK Simon Marlow <marlo...@gmail.com>**20101210094002 Ignore-this: cadba57f1c38f5e2af1de37d0a79c7ee ] [Add a test that all programs in the bindist were built with the right GHC Ian Lynagh <ig...@earth.li>**20101210161218 They should use the GHC from the build tree, not the bootstrapping compiler. ] [Add --version support to ghc-cabal Ian Lynagh <ig...@earth.li>**20101212213600 Ignore-this: ef696dcb1b96a23765f9f18e75a56f5 ] [Don't link the GHC RTS into our C-only programs Ian Lynagh <ig...@earth.li>**20101210185402 Ignore-this: 56f620f7eb16a03e7497a161bc48458e ] [Build a copy of ghc-cabal with the in-tree compiler, for the bindist Ian Lynagh <ig...@earth.li>**20101210181123] [fix warnings Simon Marlow <marlo...@gmail.com>**20101209115844 Ignore-this: ffff37feb2abbfc5bd12940c7007c208 ] [:unset settings support Boris Lykah <lyk...@gmail.com>**20101123190132 Ignore-this: 5e97c99238f5d2394592858c34c004d Added support for settings [args, prog, prompt, editor and stop]. Now :unset supports the same set of options as :set. ] [Use liftIO rather than io Ian Lynagh <ig...@earth.li>**20101103212216] [Fixes for #4512: EventLog.c - provides ability to terminate event logging, Schedule.c - uses them in forkProcess. Dmitry Astapov <dasta...@gmail.com>**20101203133950 Ignore-this: 2da7f215d6c22708a18291a416ba8881 ] [fix ticket number (#4505) Simon Marlow <marlo...@gmail.com>**20101209120404 Ignore-this: 5769c5ce2a8d69d62d977a9ae138ec23 ] [Catch too-large allocations and emit an error message (#4505) Simon Marlow <marlo...@gmail.com>**20101209114005 Ignore-this: c9013ab63dd0bd62ea045060528550c6 This is a temporary measure until we fix the bug properly (which is somewhat tricky, and we think might be easier in the new code generator). For now we get: ghc-stage2: sorry! (unimplemented feature or known bug) (GHC version 7.1 for i386-unknown-linux): Trying to allocate more than 1040384 bytes. See: http://hackage.haskell.org/trac/ghc/ticket/4550 Suggestion: read data from a file instead of having large static data structures in the code. ] [Tweak the "sorry" message a bit Simon Marlow <marlo...@gmail.com>**20101208163212 Ignore-this: aa1ce5bc3c27111548204b740572efbe - "sorry! (this is work in progress)\n" + "sorry! (unimplemented feature or known bug)\n" ] [Cleanup comments and formatting only b...@ouroborus.net**20101029065837 Ignore-this: 393131d43ae57e4c1e7ac0dce734c452 ] [Fix Windows memory freeing: add a check for fb == NULL; fixes trac #4506 Ian Lynagh <ig...@earth.li>**20101208152349 Also added a few comments, and a load of code got indented 1 level deeper. ] [Make CPPFLAGS variables, as well as CFLAGS and LDFLAGS Ian Lynagh <ig...@earth.li>**20101207010033 Ignore-this: 2fc1ca1422aae1988d0fe1d29a8485d9 This fixes the "does unsetenv return void" test in the unix package on OS X, if I tell it to make 10.4-compatible binaries. The test uses CPPFLAGS but not CFLAGS, so it thought it returned int (as it was in 10.5-mode), but the C compiler (using CFLAGS, so in 10.4 mode) thought it returned void. I also added CONF_LD_OPTS_STAGE$3 to the list of things in LDFLAGS, which looks like an accidental ommission. ] [Tweak the cleaning of inplace/; fixes trac #4320 Ian Lynagh <ig...@earth.li>**20101205212048] [Add a configure message Ian Lynagh <ig...@earth.li>**20101206215201] [Tweak a configure test Ian Lynagh <ig...@earth.li>**20101123170621] [Link even programs containing no Haskell modules with GHC Ian Lynagh <ig...@earth.li>**20101206203329 I don't remember why we made it use gcc instead, but going back to using ghc doesn't seem to break anything, and should fix the build on OS X 10.6. ] [Correct the stage that the includes/ tools are built in Ian Lynagh <ig...@earth.li>**20101206203125] [Close .ghci files after reading them; fixes trac #4487 Ian Lynagh <ig...@earth.li>**20101205205301] [Fix a nasty bug in RULE matching: Trac #4814 simo...@microsoft.com**20101202102618 Ignore-this: ba058ad46a02bd2faf3a14de93fd19c6 See Note [Matching lets], which explains it all in detail. It took me a day to think of a nice way to fix the bug, but I think the result is quite respectable. Subtle, though. ] [Fix a recomp bug: make classes/datatypes depend directly on DFuns (#4469) Simon Marlow <marlo...@gmail.com>**20101202122349 Ignore-this: 61c765583bb1d97caa88cf9b4f45b87c And remove the old mechanism of recording dfun uses separately, because it didn't work. This wiki page describes recompilation avoidance and fingerprinting. I'll update it to describe the new method and what went wrong with the old method: http://hackage.haskell.org/trac/ghc/wiki/Commentary/Compiler/RecompilationAvoidance ] [removeThreadFromQueue: stub out the link field before returning (#4813) Simon Marlow <marlo...@gmail.com>**20101202160838 Ignore-this: 653ae17bc1120d7f4130da94665002a1 ] [handle ThreadMigrating in throwTo() (#4811) Simon Marlow <marlo...@gmail.com>**20101203094818 Ignore-this: 8ef8cb7fd3b50a27f83c29968131d461 If a throwTo targets a thread that has just been created with forkOnIO, then it is possible the exception strikes while the thread is still in the process of migrating. throwTo() didn't handle this case, but it's fairly straightforward. ] [Tell gcc to support back to OS X 10.5 Ian Lynagh <ig...@earth.li>**20101203201558 Ignore-this: f02d70e5b9cce50137981c6cb2b62a18 ] [Remove the no-ghci-lib warning in ghc-pkg Ian Lynagh <ig...@earth.li>**20101127235805 GHCi libs are no longer necessary, as we can use the .a or .so versions instead. ] [rts/Linker.c (loadArchive): p...@cielonegro.org**20101130142700 Ignore-this: bc84f9369ce5c2d289440701b7a3a2ab This routine should be aware of Mach-O misalignment of malloc'ed memory regions. ] [Add GNU-variant support to the .a parser, and other improvements/tidyups Ian Lynagh <ig...@earth.li>**20101127223945] [Re-indent only Ian Lynagh <ig...@earth.li>**20101127191646] [Improve linker debugging for archive files Ian Lynagh <ig...@earth.li>**20101127190907] [Always enable the archive-loading code Ian Lynagh <ig...@earth.li>**20101127173000 If the GHCi .o lib doesn't exist, load the .a instead ] [FIX #1845 (unconditional relative branch out of range) p...@cielonegro.org**20101130143014 Ignore-this: df234bd8ad937104c455656fe3c33732 Don't use mmap on powerpc-apple-darwin as mmap doesn't support reallocating but we need to allocate jump islands just after each object images. Otherwise relative branches to jump islands can fail due to 24-bits displacement overflow. ] [rts/Linker.c (machoGetMisalignment): p...@cielonegro.org**20101130123355 Ignore-this: 75425600049efd587e9873578e26392f Use fseek(3) instead of rewind(3) to move the file position indicator back to the initial position. Otherwise we can't use this function in loadArchive(). ] [rts/Linker.c (ocFlushInstructionCache): p...@cielonegro.org**20101130121425 Ignore-this: 1e2c207e4b1d17387617ec5d645204b7 I found this function causes a segfault when ocAllocateSymbolExtras() has allocated a separate memory region for jump islands. ] [fix ref to utils/ext-core, which moved to Hackage (extcore package) Simon Marlow <marlo...@gmail.com>**20101201092147 Ignore-this: 272a7daaa335ef60bcc645db70b4d68b ] [fix floating-point/FFI section: fenv is C99, not POSIX Simon Marlow <marlo...@gmail.com>**20101201092119 Ignore-this: ce8b3edd428e4f77691dd739b5b4ae73 ] [Document the behaviour of fenv.h functions with GHC (#4391) Simon Marlow <marlo...@gmail.com>**20101126125336 Ignore-this: bc4eab49428d567505a28add6fed90f1 ] [Substitution should just substitute, not optimise simo...@microsoft.com**20101125172356 Ignore-this: 657628d9b6796ceb5f915c43d56e4a06 This was causing Trac #4524, by optimising (e |> co) to e on the LHS of a rule. Result, the template variable 'co' wasn't bound any more. Now that substition doesn't optimise, it seems sensible to call simpleOptExpr rather than substExpr when substituting in the RHS of rules. Not a big deal either way. ] [Allow the old [$foo| ... |] syntax for quasi-quotes simo...@microsoft.com**20101112083052 Ignore-this: 868e0e07fc6bbc9772bcba54e8ca79d This is just a backward-compatibility thing, to be removed eventually. ] [For bindists, build ghc-pwd with stage 1 Ian Lynagh <ig...@earth.li>**20101121183520 Ignore-this: a3b5c8b78c81ec1b6d5fbf23da346ff5 rather then the bootstrapping compiler. This fixes problems where the bootstrapping compiler dynamically links against libraries not on the target machine. ] [Makefile tweak Ian Lynagh <ig...@earth.li>**20101121183342 Ignore-this: cd55a2819c1a5fd36da1bc7a75d2ded1 ] [Fix a makefile include ordering sanity check Ian Lynagh <ig...@earth.li>**20101121174916 Ignore-this: d0bdd41c4b618944d04ecb4f54fdd0f1 ] [Tweak the bindist configure.ac.in Ian Lynagh <ig...@earth.li>**20101120173735] [configure.ac tweaks Ian Lynagh <ig...@earth.li>**20101120170245] [When testing the bindist, tell it where gcc is Ian Lynagh <ig...@earth.li>**20101120155920 The location isn't baked into the bindist, as it may differ from machine to machine. ] [Add -fwarn-lazy-unlifted-bindings to the list of flags simo...@microsoft.com**20101116172211 Ignore-this: 4f150f347bb74027adacb64545f6b757 ] [Improve documentation for -fwarn-incomplete-patterns simo...@microsoft.com**20101116171527 Ignore-this: d8386202cc322207436db0c5b185dab ] [Eventlog: Put correct size for startup event sc...@leeds.ac.uk**20101105151655 Ignore-this: 8b6eb4fa2137c8dfe50c5917e3a609a7 ] [Omit bogus test for -XDeriveFunctor simo...@microsoft.com**20101118090028 Ignore-this: a534243011809ebbb788b910961601c5 It was duplicated in the case of 'deriving( Functor )' and wrong for 'deriving( Foldable )' ] [Move the superclass generation to the canonicaliser simo...@microsoft.com**20101118120533 Ignore-this: 5e0e525402a240b709f2b8104c1682b2 Doing superclass generation in the canonicaliser (rather than TcInteract) uses less code, and is generally more efficient. See Note [Adding superclasses] in TcCanonical. Fixes Trac #4497. ] [Improve error message on advice from a user simo...@microsoft.com**20101118085306 Ignore-this: bd4f3858ff24e602e985288f27d536f3 See Trac #4499 ] [Buglet in tcIface, now that nested binders can have pragmas simo...@microsoft.com**20101027184235 Ignore-this: de2db50370c35b8ae92ec2574d806b33 This fix ties the knot for recursive groups properly ] [Fix initialisation of strictness in the demand analyser simo...@microsoft.com**20101026081757 Ignore-this: d89b117caa95b51b6c24584ac03bedf6 Previously, the demand analyser assumed that every binder starts off with no strictness info. But now that we are preserving strictness on nesting bindings in interface files, that assumption is no longer correct, because an inlined function might have a nested binding with strictness set. So we need to know when we are in the initial sweep, so that we can set the strictness to 'bottom'. See Note [Initialising strictness] ] [Fix the generation of in-scope variables for IfaceLint check simo...@microsoft.com**20101118090057 Ignore-this: bbcdba61ddf89d07fe69ca99c2017e3f ] [Serialise nested unfoldings across module boundaries simo...@microsoft.com**20101025152817 Ignore-this: 1520586f152501d4acb084ebf9cd3136 As Roman reported in #4428, nested let-bindings weren't being recorded with their unfoldings. Needless to say, fixing this had more knock-on effects than I expected. ] [Nicer error message for #3782 b...@ouroborus.net**20101029063320 Ignore-this: fc746cad57410123a29f37f61f13dd3c It now says: ghc-stage2: sorry! (this is work in progress) (GHC version 7.1.20101028 for i386-apple-darwin): Vectorise.Builtins.indexBuiltin DPH builtin function 'sumTyCon' of size '11' is not yet implemented. This function does not appear in your source program, but it is needed to compile your code in the backend. This is a known, current limitation of DPH. If you want it to to work you should send mail to cvs-ghc@haskell.org and ask what you can do to help (it might involve some GHC hacking). I added 'pprSorry' that behaves like 'pprPanic' except it say sorry! instead of panic!, and doesn't ask the user to report a bug. ] [Build system tweak: Inline DQ now it's the same on all platforms Ian Lynagh <ig...@earth.li>**20101114134636] [Update to docbook 4.5; fixes trac #4447 Ian Lynagh <ig...@earth.li>**20101114155023] [Fix -fwarn-missing-import-lists (fix Trac #4489) simo...@microsoft.com**20101115232142 Ignore-this: 656b3a76540a488a7111ba7c9ec8ebc4 ] [Ensure that instance overlap errors are report properly simo...@microsoft.com**20101115142805 Ignore-this: 2fca29a95bdc69a4c783cbcc663a10f7 This (annoyingly) requires us to re-flatten the class predicate. See Note [Flattening in error message generation] ] [Fix Trac #4501: a transposition error in DynFlags simo...@microsoft.com**20101117100832 Ignore-this: b81eca419581a7cec773556514915814 Push to STABLE ] [Fix Trac #4498: bang-pattern bindings are monomorphic simo...@microsoft.com**20101117101058 Ignore-this: 2a739aeca590b4dd1907078ba80133ff This patch forces bang patterns to be monomorphic, and documents this fact. ] [Ensure that unification variables alloc'd during solving are untouchable simo...@microsoft.com**20101115121540 Ignore-this: 4cdb38180488e605489ce5d018998089 This fixes Trac #4494. See Note [Extra TcsTv untouchables] in TcSimplify. ] [Document SPECIALISE for imported functions simo...@microsoft.com**20101117111559 Ignore-this: 5c9e83d15b85fe5a8639321e00e5dcaa This is a really useful new facility, but I'd forgotten to document it. Pls merge to 7.0 branch ] [Add a build system dependency; fixes #4357 Ian Lynagh <ig...@earth.li>**20101114140311] [Set RELEASE to NO Ian Lynagh <ig...@earth.li>**20101117141621] [TAG GHC 7.0.1 release Ian Lynagh <ig...@earth.li>**20101117140118 Ignore-this: ac737bfbb99523a6e0aa7f7a32727de9 ] Patch bundle hash: 720714d2611ec8d8d466d2ba5117c35204f98299
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