[COMMITTED] libsframe: add README and mention expectations

[Indu Bhagat]

libsframe is not meant for consumption by tools external to GNU
Binutils.

libsframe/
	* Makefile.in: Regenerate.
	* libsframe/README: New file.
---
 libsframe/Makefile.in | 2 +-
 libsframe/README      | 6 ++++++
 2 files changed, 7 insertions(+), 1 deletion(-)
 create mode 100644 libsframe/README

diff --git a/libsframe/Makefile.in b/libsframe/Makefile.in
index 660b3e38116..cb6895d1dcb 100644
--- a/libsframe/Makefile.in
+++ b/libsframe/Makefile.in
@@ -366,7 +366,7 @@ am__DIST_COMMON = $(srcdir)/Makefile.in $(srcdir)/config.h.in \
 	$(top_srcdir)/../compile $(top_srcdir)/../config.guess \
 	$(top_srcdir)/../config.sub $(top_srcdir)/../depcomp \
 	$(top_srcdir)/../install-sh $(top_srcdir)/../ltmain.sh \
-	$(top_srcdir)/../missing $(top_srcdir)/../mkinstalldirs
+	$(top_srcdir)/../missing $(top_srcdir)/../mkinstalldirs README
 DISTFILES = $(DIST_COMMON) $(DIST_SOURCES) $(TEXINFOS) $(EXTRA_DIST)
 distdir = $(PACKAGE)-$(VERSION)
 top_distdir = $(distdir)
diff --git a/libsframe/README b/libsframe/README
new file mode 100644
index 00000000000..6f81f093438
--- /dev/null
+++ b/libsframe/README
@@ -0,0 +1,6 @@
+libsframe is a support library for the GNU Binutils collection (currently used
+by GNU ld, objdump, etc.) to read and write SFrame section data.
+
+Note: This library is currently intended for internal use by GNU Binutils only.
+Strict guarantees for ABI compatibility are not provided, and external projects
+should not rely on the stability of these interfaces.
-- 
2.43.0