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Document bootstrap problems on SPARC
- From: Eric Botcazou <ebotcazou at libertysurf dot fr>
- To: gcc-patches at gcc dot gnu dot org
- Date: Sat, 8 May 2004 19:42:41 +0200
- Subject: Document bootstrap problems on SPARC
Following Giovanni's suggestion, this patch documents the bootstrap problems
with GCC 3.3 and GCC 3.4 on SPARC when the bootstrap compiler is an earlier
version (typically 3.0.x) of the GNU compiler and gives the workaround.
Applied to all active branches (without the reference to 3.4 on 3.3 branch).
2004-05-08 Eric Botcazou <ebotcazou@libertysurf.fr>
* doc/install.texi (sparc-sun-solaris2*): Document bootstrap
problems with earlier versions of the GNU compiler.
--
Eric Botcazou
Index: doc/install.texi
===================================================================
RCS file: /cvs/gcc/gcc/gcc/doc/install.texi,v
retrieving revision 1.278
diff -u -p -r1.278 install.texi
--- doc/install.texi 19 Apr 2004 21:11:47 -0000 1.278
+++ doc/install.texi 4 May 2004 18:48:14 -0000
@@ -3459,6 +3459,13 @@ that supports only 32-bit binaries, one
@option{--disable-multilib}, since we will not be able to build the
64-bit target libraries.
+GCC 3.3 and GCC 3.4 trigger code generation bugs in earlier versions of
+the GNU compiler (especially GCC 3.0.x versions), which lead to the
+miscompilation of the stage1 compiler and the subsequent failure of the
+bootstrap process. A workaround is to use GCC 3.2.3 as an intermediary
+stage, i.e. to bootstrap that compiler with the base compiler and then
+use it to bootstrap the final compiler.
+
GCC 3.4 triggers a code generation bug in versions 5.4 (Sun ONE Studio 7)
and 5.5 (Sun ONE Studio 8) of the Sun compiler, which causes a bootstrap
failure in form of a miscompilation of the stage1 compiler by the Sun