X-Git-Url: http://git.megacz.com/?a=blobdiff_plain;f=docs%2Fusers_guide%2Fphases.xml;h=2f74a6bbaa47cb16a40ab4f92a7893e2b37e12bf;hb=c61001a6d252f2f260c271de30d76e64e4626c4f;hp=35e74c3544af72255e983afd72ef0e989f5449b4;hpb=f35cbb251108d6371fe9287418366a3c4e82e8dd;p=ghc-hetmet.git
diff --git a/docs/users_guide/phases.xml b/docs/users_guide/phases.xml
index 35e74c3..2f74a6b 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.
@@ -725,7 +760,12 @@ $ 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 +823,7 @@ $ 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.