X-Git-Url: http://git.megacz.com/?a=blobdiff_plain;f=docs%2Fusers_guide%2Fphases.xml;h=3ac9ef27e27a6d6a0fd74e44c1e7717013fa105d;hb=d4050431de1adddedb240e497f77f89301f77070;hp=e5bac79dfd7dd1d7d1a7992b01726dc411956964;hpb=c5a97ea01a810333608ef1e26f5cb5422dd25928;p=ghc-hetmet.git
diff --git a/docs/users_guide/phases.xml b/docs/users_guide/phases.xml
index e5bac79..3ac9ef2 100644
--- a/docs/users_guide/phases.xml
+++ b/docs/users_guide/phases.xml
@@ -49,6 +49,28 @@
+ cmd
+
+
+
+ Use cmd as the
+ mangler.
+
+
+
+
+
+ cmd
+
+
+
+ Use cmd as the
+ splitter.
+
+
+
+
+ cmd
@@ -82,17 +104,6 @@
- cmd
-
-
-
- Use cmd as the dependency
- generator.
-
-
-
-
- cmd
@@ -155,6 +166,15 @@
+ option
+
+
+
+ Pass option to the mangler.
+
+
+
+ option
@@ -486,6 +506,24 @@ $ cat foo.hspp
are fed to cmd on the command
line after the three standard input and output
arguments.
+
+
+ An example of a pre-processor is to convert your source files to the
+ input encoding that GHC expects, i.e. create a script
+ convert.sh containing the lines:
+
+
+#!/bin/sh
+( echo "{-# LINE 1 \"$2\" #-}" ; iconv -f l1 -t utf-8 $2 ) > $3
+
+ and pass -F -pgmF convert.sh to GHC.
+ The -f l1 option tells iconv to convert your
+ Latin-1 file, supplied in argument $2, while
+ the "-t utf-8" options tell iconv to return a UTF-8 encoded file.
+ The result is redirected into argument $3.
+ The echo "{-# LINE 1 \"$2\" #-}"
+ just makes sure that your error positions are reported as
+ in the original source file.
@@ -529,9 +567,7 @@ $ cat foo.hspp
Use GHC's native code generator rather than
compiling via C. This will compile faster (up to twice as
fast), but may produce code that is slightly slower than
- compiling via C. is the default
- when optimisation is off (see ).
+ compiling via C. is the default.
@@ -542,9 +578,8 @@ $ cat foo.hspp
Compile via C instead of using the native code
- generator. This is default for optimised compilations,
- and on architectures for which GHC doesn't have a native
- code generator.
+ generator. This is the default on architectures for which GHC
+ doesn't have a native code generator.
@@ -562,6 +597,32 @@ $ cat foo.hspp
+
+
+
+
+ Generate object code. This is the default outside of
+ GHCi, and can be used with GHCi to cause object code to be
+ generated in preference to bytecode.
+
+
+
+
+
+
+
+
+
+ Generate byte-code instead of object-code. This is
+ the default in GHCi. Byte-code can currently only be used
+ in the interactive interpreter, not saved to disk. This
+ option is only useful for reversing the effect of
+ .
+
+
+
+
+
@@ -725,7 +786,12 @@ $ cat foo.hspp
Tell the linker to split the single object file that
would normally be generated into multiple object files,
one per top-level Haskell function or type in the module.
- We use this feature for building GHC's libraries libraries
+ This only makes sense for libraries, where it means that
+ executables linked against the library are smaller as they only
+ link against the object files that they need. However, assembling
+ all the sections separately is expensive, so this is slower than
+ compiling normally.
+ We use this feature for building GHC's libraries
(warning: don't use it unless you know what you're
doing!).
@@ -783,7 +849,7 @@ $ cat foo.hspp
ghc is not clever
enough to figure out that they both need recompiling. You can
force recompilation by removing the object file, or by using the
- flag.
+ flag.
@@ -856,10 +922,10 @@ $ cat foo.hspp
Parallelismparallelism on a multiprocessormultiprocessorSMP or multicoremulticore
- machine. See .
+ machine. See .
The ability to make a foreign call that does not
- block all other Haskell threads..
+ block all other Haskell threads.
The ability to invoke foreign exported Haskell
functions from multiple OS threads.