From 03b272d2c2b68e169d821ad73e9f23ff7925c576 Mon Sep 17 00:00:00 2001 From: Janis Johnson Date: Fri, 19 Oct 2001 16:52:31 +0000 Subject: [PATCH] * doc/install.texi (Specific, sparc-sun-solaris2*) Copy documentation about 64-bit support from the 3.0_branch version. From-SVN: r46350 --- gcc/doc/install.texi | 12 ++++++++++++ 1 file changed, 12 insertions(+) diff --git a/gcc/doc/install.texi b/gcc/doc/install.texi index 98404edf36d..ea43627d91d 100644 --- a/gcc/doc/install.texi +++ b/gcc/doc/install.texi @@ -3251,6 +3251,18 @@ This is Sun bug 4237974. This is fixed with patch 108908-02 for Solaris 2.6 and has been fixed in later (5.x) versions of the assembler, starting with Solaris 7. +Starting with Solaris 7, the operating system is capable of executing +64-bit SPARC V9 binaries. GCC 3.0 doesn't properly support this yet. +Although some patches or recipes to enable this support have been posted +to various newsgroups and mailing lists, we recommend against using +them, since the compiler may either crash or, worse, silently generate +bad code. If you really need this capability now, you might try a CVS +version of GCC 3.1, which will fully support this. If all you want is +code tuned for the UltraSPARC CPU, you should try the +@option{-mtune=ultrasparc} option instead, which should be safe from +those bugs and produce code that, unlike full 64-bit code, can still run +on non-UltraSPARC machines. + @html

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