On Tue, Jun 15, Tom Rini wrote:

And yes, passing -many does work on all older supported versions of
binutils.  So perhaps we should just add -Wa,-many to our cflags and be
done with it now (and for future fixes of this sort).

gcc 3.2 passes only -mppc, so all altive instructions will fail to
compile without either -many or -maltivec

I have tested this patch with
gcc 3.2.3 + binutils-2.15.91.0.1
gcc 3.3.4 + binutils-2.15.91.0.1
gcc 3.4.1 + binutils-2.15.91.0.1
gcc 3.2.3 + binutils-2.15
gcc 3.3.4 + binutils-2.15
gcc 3.4.1 + binutils-2.15


diff -purNX /suse/olh/kernel/kernel_exclude.txt linux-2.6.7-bk16.orig/arch/ppc/Makefile linux-2.6.7-bk16/arch/ppc/Makefile

--- linux-2.6.7-bk16.orig/arch/ppc/Makefile	2004-07-03 22:33:35.000000000 +0200
+++ linux-2.6.7-bk16/arch/ppc/Makefile	2004-07-03 23:11:10.037787069 +0200

@@ -24,6 +24,9 @@ ifndef CONFIG_E500
 cflags-y	+= -mstring
 endif

+# gcc 3.2.3 passes -mppc,
+# the altivec asm code will fail to compile with binutils newer than 2.15
+cflags-$(CONFIG_6xx)		+= -Wa,-many
 cflags-$(CONFIG_4xx)		+= -Wa,-m405
 cflags-$(CONFIG_E500)		+= -Wa,-me500
 cflags-$(CONFIG_PPC64BRIDGE)	+= -Wa,-mppc64bridge

diff -purNX /suse/olh/kernel/kernel_exclude.txt linux-2.6.7-bk16.orig/arch/ppc/kernel/Makefile linux-2.6.7-bk16/arch/ppc/kernel/Makefile

--- linux-2.6.7-bk16.orig/arch/ppc/kernel/Makefile	2004-07-03 22:33:35.000000000 +0200
+++ linux-2.6.7-bk16/arch/ppc/kernel/Makefile	2004-07-03 22:51:16.802332774 +0200

@@ -8,6 +8,9 @@ endif
 ifdef CONFIG_4xx
 EXTRA_AFLAGS		:= -Wa,-m405
 endif
+ifdef CONFIG_6xx
+EXTRA_AFLAGS		:= -Wa,-maltivec
+endif
 ifdef CONFIG_E500
 EXTRA_AFLAGS		:= -Wa,-me500
 endif

--

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sUse lINUX ag, nÜRNBERG

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