From: Ian Lance Taylor <ian@airs.com>
Date: Sat, 28 Feb 2009 18:08:30 +0000 (+0000)
Subject: 	* README: --gc-sections and map files are now supported.  Document
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=14359ca0dc033417af8fdf0fe5e3d68913e97197;p=binutils-gdb.git

	* README: --gc-sections and map files are now supported.  Document
	some build requirements.
---

diff --git a/gold/ChangeLog b/gold/ChangeLog
index de4597ec872..cac34053e24 100644
--- a/gold/ChangeLog
+++ b/gold/ChangeLog
@@ -1,5 +1,8 @@
 2009-02-28  Ian Lance Taylor  <iant@google.com>
 
+	* README: --gc-sections and map files are now supported.  Document
+	some build requirements.
+
 	PR 6992
 	* symtab.cc (Symbol_table::sized_write_section_symbol): In a
 	relocatable link set the value of the section symbol to zero.
diff --git a/gold/README b/gold/README
index 49de60ad872..8891d624d65 100644
--- a/gold/README
+++ b/gold/README
@@ -17,9 +17,7 @@ omissions--features of the GNU linker not currently supported in
 gold--are:
   * MEMORY regions in linker scripts
   * MRI compatible linker scripts
-  * linker map files (-M, -Map)
   * cross-reference reports (--cref)
-  * linker garbage collection (--gc-sections)
   * position independent executables (-pie)
   * various other minor options
 
@@ -51,3 +49,16 @@ of work.  Task objects are stored on a single Workqueue object.  Tasks
 communicate via Task_token objects.  Task_token objects are only
 manipulated while holding the master Workqueue lock.  Relatively few
 mutexes are used.
+
+
+Build requirements
+==================
+
+The gold source code uses templates heavily.  Building it requires a
+recent version of g++.  g++ 4.0.3 is known to work.  g++ 3.2 and g++
+3.4.3 are known to fail.
+
+The linker script parser uses features which are only in newer
+versions of bison.  bison 2.3 is known to work.  bison 1.26 is known
+to fail.  If you are building gold from an official binutils release,
+the bison output should already be included.