sourcebuild.texi (Subdirectories): Document common subdirectory.

	* doc/sourcebuild.texi (Subdirectories): Document common
	subdirectory.

From-SVN: r189988

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 3b26c17ff82cea6581f19cdb0ae34afa1c42f397..b1d114c0c9d93a80de06e4de0f5aed8e87c6c23f 100644 (file)
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,8 @@
+2012-07-30  Joseph Myers  <joseph@codesourcery.com>
+
+       * doc/sourcebuild.texi (Subdirectories): Document common
+       subdirectory.
+
 2012-07-30  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
 
        PR middle-end/53823

diff --git a/gcc/doc/sourcebuild.texi b/gcc/doc/sourcebuild.texi
index 43afa00c1629ed786480cf9aeb849d78994a7cbb..41388a07da9a2557132962fd56bc6b0ad74958bd 100644 (file)
--- a/gcc/doc/sourcebuild.texi
+++ b/gcc/doc/sourcebuild.texi
@@ -176,6 +176,12 @@ those for other languages are not.  @xref{Front End, ,
 Anatomy of a Language Front End}, for details of the files in these
 directories.
 
+@item common
+Source files shared between the compiler drivers (such as
+@command{gcc}) and the compilers proper (such as @file{cc1}).  If an
+architecture defines target hooks shared between those places, it also
+has a subdirectory in @file{common/config}.  @xref{Target Structure}.
+
 @item config
 Configuration files for supported architectures and operating
 systems.  @xref{Back End, , Anatomy of a Target Back End}, for