Repository : ssh://darcs.haskell.org//srv/darcs/ghc On branch : master
http://hackage.haskell.org/trac/ghc/changeset/b35a12aa910dcb90cfd7b40ca1fb6d89a0a63bc8 >--------------------------------------------------------------- commit b35a12aa910dcb90cfd7b40ca1fb6d89a0a63bc8 Author: Simon Marlow <[email protected]> Date: Wed Nov 30 08:52:38 2011 +0000 remove obsolete notes (#5660) >--------------------------------------------------------------- compiler/DLL-NOTES | 58 ---------------------------------------------------- 1 files changed, 0 insertions(+), 58 deletions(-) diff --git a/compiler/DLL-NOTES b/compiler/DLL-NOTES deleted file mode 100644 index c710b14..0000000 --- a/compiler/DLL-NOTES +++ /dev/null @@ -1,58 +0,0 @@ - The DLL story - ------------- - -*** - -This file is intended to be a focal point for notes on how DLLs work. Please -add cross-references to source and other docs, especially when you don't -find something here that you need. - -*** - - -Introduction ------------- - -On Windows, DLLs are synonymous with packages (since 4.07; this change -simplified a rather horrible mess). Hence whenever a module is to be -compiled to go in a DLL, it must be compiled with -package-name dll-name. -Typically, failing to do this gives Windows error message boxes of the form -"The instruction at address <x> tried to read memory at address <x>". - - -Dependencies ------------- - -Because references in DLLs must be fully resolved when the DLL is compiled -(except for references to other DLLs), it is not possible for DLLs to call -the main program. This means that the parts of the RTS and standard package -which call the main program cannot be compiled into the relevant DLLs, and -must instead be compiled as standalone object files and linked in to each -executable. This gives the following picture of dependencies within a program: - - ___________ ___________ - | |------>| | GHC-land | Application-land -DLL-land | HSrts.dll | | HSstd.dll | | - |___________|<------|___________| | - | ^ | ------------------|-------------------|-------------------| - _____v_____ _____|______ | -.o-land | | | | | - | Main.o | | PrelMain.o |----------------------- - |___________| |____________| | | - | | ______v______ - | | | | - ------------------------------------------>| Main.o | - | |_____________| - -(The application's dependencies are not shown.) - - -Bits of the compiler that deal with DLLs ----------------------------------------- - -basicTypes/Module.lhs is the most important place, as it deals with which -modules identifiers are in. - -basicTypes/name.lhs, other bits of basicTypes/, nativeGen/, codeGen/, -abcCSyn/, and even profiling/ have other references. _______________________________________________ Cvs-ghc mailing list [email protected] http://www.haskell.org/mailman/listinfo/cvs-ghc
