From e893d649fa4ba38b7325ea3b482b8363176f0263 Mon Sep 17 00:00:00 2001
From: Chris Lattner <sabre@nondot.org>
Date: Sat, 29 Nov 2003 09:22:53 +0000
Subject: [PATCH] Add readme and spiff up makefile header

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10254 91177308-0d34-0410-b5e6-96231b3b80d8
---
 runtime/GCCLibraries/crtend/Makefile   |  8 +++++++-
 runtime/GCCLibraries/crtend/README.txt | 15 +++++++++++++++
 2 files changed, 22 insertions(+), 1 deletion(-)
 create mode 100644 runtime/GCCLibraries/crtend/README.txt

diff --git a/runtime/GCCLibraries/crtend/Makefile b/runtime/GCCLibraries/crtend/Makefile
index 666a88b28a1..361bad002b0 100644
--- a/runtime/GCCLibraries/crtend/Makefile
+++ b/runtime/GCCLibraries/crtend/Makefile
@@ -1,4 +1,4 @@
-##===- runtime/GCCLibraries/crtend/Makefile ------------------------------*- Makefile -*-===##
+##===- runtime/GCCLibraries/crtend/Makefile ----------------*- Makefile -*-===##
 # 
 #                     The LLVM Compiler Infrastructure
 #
@@ -6,6 +6,12 @@
 # the University of Illinois Open Source License. See LICENSE.TXT for details.
 # 
 ##===----------------------------------------------------------------------===##
+#
+# This directory contains the C and C++ runtime libraries for the LLVM GCC
+# front-ends.
+#
+##===----------------------------------------------------------------------===##
+
 LEVEL = ../../..
 BYTECODE_LIBRARY=1
 DONT_BUILD_RELINKED=1
diff --git a/runtime/GCCLibraries/crtend/README.txt b/runtime/GCCLibraries/crtend/README.txt
new file mode 100644
index 00000000000..ff070c442c2
--- /dev/null
+++ b/runtime/GCCLibraries/crtend/README.txt
@@ -0,0 +1,15 @@
+This directory contains the C and C++ runtime libraries for the LLVM GCC
+front-ends.  It is composed of four distinct pieces:
+
+1. __main and static ctor/dtor support.  This is used by both C and C++ codes.
+
+2. Generic EH support routines.  This is used by C/C++ programs that use
+   setjmp/longjmp, and by C++ programs that make use of exceptions.
+
+3. setjmp/longjmp EH support.  This is used by C/C++ programs that call SJLJ.
+
+4. C++ exception handling runtime support.
+
+These four components are compiled together into an archive file, so that
+applications using a subset of the four do not pull in unnecessary code and
+dependencies.