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Document Sun linker warning

Paul linked warning messages issued by the Sun linker under certain 
circumstances to a bug in the Sun assembler and proposed a documentation 

Applied to mainline and 3.4 branch.

2004-06-01  Paul Eggert  <>

	PR target/15626
	* doc/install.texi (sparc-sun-solaris2*): Document messages issued
	by the Sun linker in conjunction with the Sun assembler.
	(sparc-sun-solaris2.7): Update revision info for Sun patch 106950.

Eric Botcazou
Index: doc/install.texi
RCS file: /cvs/gcc/gcc/gcc/doc/install.texi,v
retrieving revision 1.281
diff -u -p -r1.281 install.texi
--- doc/install.texi	25 May 2004 00:52:57 -0000	1.281
+++ doc/install.texi	1 Jun 2004 11:17:17 -0000
@@ -3363,7 +3363,7 @@ supported as cross-compilation target on
 <hr />
 @end html
 @c Please use Solaris 2 to refer to all release of Solaris, starting
-@c with 2.0 until 2.6, 7, and 8.  Solaris 1 was a marketing name for
+@c with 2.0 until 2.6, 7, 8, etc.  Solaris 1 was a marketing name for
 @c SunOS 4 releases which we don't use to avoid confusion.  Solaris
 @c alone is too unspecific and must be avoided.
 @heading @anchor{*-*-solaris2*}*-*-solaris2*
@@ -3472,6 +3472,17 @@ and 5.5 (Sun ONE Studio 8) of the Sun co
 failure in form of a miscompilation of the stage1 compiler by the Sun
 compiler.  This is Sun bug 4974440.  This is fixed with patch 112760-07.
+GCC 3.4 changed the default debugging format from STABS to DWARF-2 for
+32-bit code on Solaris 7 and later.  If you are using the Sun
+assembler, this change apparently runs afoul of Sun bug 4910101, for
+which (as of 2004-05-23) there is no fix.  A symptom of the problem is
+that you cannot compile C++ programs like @command{groff} 1.19.1
+without getting messages like @samp{ld: warning: relocation error:
+R_SPARC_UA32 @dots{} external symbolic relocation against
+non-allocatable section .debug_info; cannot be processed at runtime:
+relocation ignored}.  To work around this problem, compile with
+@option{-gstabs+} instead of plain @option{-g}.
 <hr />
 @end html
@@ -3508,7 +3519,7 @@ run code generated by GCC; it doesn't su
 the hosts that run GCC itself.  Second, Sun says that 106950-03 is
 only a partial fix for bug 4210064, but Sun doesn't know whether the
 partial fix is adequate for GCC@.  Revision -08 or later should fix
-the bug.  The current (as of 2001-09-24) revision is -14, and is included in
+the bug.  The current (as of 2004-05-23) revision is -24, and is included in
 the Solaris 7 Recommended Patch Cluster.
 @end itemize

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