gcc-3.4.0-ultrasparc3-default64.patch

linux下编译交叉工具链的工具源码

Date: Sat, 1 May 2004 21:08:10 +0200
From: Jakub Jelinek <[e-mail]>
To: Dan Kegel <[e-mail]>, [e-mail]
Cc: [e-mail]
Subject: [PATCH] sparc64-linux --with-cpu=ultrasparc fix
Message-ID: <[e-mail]>
Reply-To: Jakub Jelinek <[e-mail]>
References: <[e-mail]>
In-Reply-To: <[e-mail]>

On Sat, May 01, 2004 at 01:39:45PM -0700, Dan Kegel wrote:
> I'm having a bit of trouble configuring gcc-3.4.0  for sparc64-linux.
> The resulting compiler defaults to sparc32, which is a problem
> because it means having to figure out how to add
> -mcpu=ultrasparc3 -Wa,-Av9a -m64 to CFLAGS for everything I build.
> The worst part is that this even affects libgcc.a, which makes it
> pretty hard to link any sparc64 executables.  I could figure out
> how mklibgcc and multilibbing work, and maybe thereby get a good 64 bit 
> libgcc.a,
> but I'd kind of like to avoid that for the moment, and just really get
> gcc to default to 64 bit output.
> 
> What's the right way to get gcc to default to building 64 bit executables
> when targeting sparc64-linux?

There was TARGET_CPU_ultrasparc3 missing in linux64.h.
I've commited the following fix to the trunk, but as it is not a regression,
I'm not sure if Mark is ok with this for gcc-3_4-branch.

2004-05-01  Jakub Jelinek  <[e-mail]>

	* config/sparc/linux64.h (TARGET_DEFAULT): Make 64-bit by default
	also for TARGET_CPU_DEFAULT == TARGET_CPU_ultrasparc3.

--- gcc-3.4.0/gcc/config/sparc/linux64.h.jj	2004-05-01 22:59:52.000000000 +0200
+++ gcc-3.4.0/gcc/config/sparc/linux64.h	2004-05-01 23:00:41.126176529 +0200
@@ -39,7 +39,9 @@ Boston, MA 02111-1307, USA.  */
 #undef MD_EXEC_PREFIX
 #undef MD_STARTFILE_PREFIX
 
-#if TARGET_CPU_DEFAULT == TARGET_CPU_v9 || TARGET_CPU_DEFAULT == TARGET_CPU_ultrasparc
+#if TARGET_CPU_DEFAULT == TARGET_CPU_v9 \
+    || TARGET_CPU_DEFAULT == TARGET_CPU_ultrasparc \
+    || TARGET_CPU_DEFAULT == TARGET_CPU_ultrasparc3
 /* A 64 bit v9 compiler with stack-bias,
    in a Medium/Low code model environment.  */
 

	Jakub