diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 366652ce109..a47a8df4bb6 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,9 @@
+2010-02-01  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
+
+	PR libgomp/29986
+	* doc/install.texi (Specific): Add sparc-sun-solaris2.10 entry.
+	Document fix for TLS bug.
+
 2010-01-31  Richard Guenther  <rguenther@suse.de>
 
 	* tree-sra.c (ptr_parm_has_direct_uses): Rewrite to be
diff --git a/gcc/doc/install.texi b/gcc/doc/install.texi
index 1be448083e4..1370b473016 100644
--- a/gcc/doc/install.texi
+++ b/gcc/doc/install.texi
@@ -2944,6 +2944,8 @@ information are.
 @item
 @uref{#sparc-sun-solaris27,,sparc-sun-solaris2.7}
 @item
+@uref{#sparc-sun-solaris210,,sparc-sun-solaris2.10}
+@item
 @uref{#sparc-x-linux,,sparc-*-linux*}
 @item
 @uref{#sparc64-x-solaris2,,sparc64-*-solaris2*}
@@ -4264,6 +4266,21 @@ ld: fatal: relocation error: R_SPARC_DISP32:
 
 This bug has been fixed in more recent revisions of the assembler.
 
+@html
+<hr />
+@end html
+@heading @anchor{sparc-sun-solaris210}sparc-sun-solaris2.10
+
+There is a bug in older versions of the Sun assembler which breaks
+thread-local storage (TLS).  A typical error message is
+
+@smallexample
+ld: fatal: relocation error: R_SPARC_TLS_LE_HIX22: file /var/tmp//ccamPA1v.o:
+  symbol <unknown>: bad symbol type SECT: symbol type must be TLS
+@end smallexample
+
+This bug is fixed in Sun patch 118683-03 or later.
+
 @html
 <hr />
 @end html