* [PATCH] Add -msoft-float to BOOTCFLAGS
@ 2007-05-15 0:52 Josh Boyer
2007-05-15 1:08 ` Benjamin Herrenschmidt
2007-05-15 4:46 ` Segher Boessenkool
0 siblings, 2 replies; 3+ messages in thread
From: Josh Boyer @ 2007-05-15 0:52 UTC (permalink / raw)
To: paulus; +Cc: linuxppc-dev
We want to avoid any float instructions that may occur in the wrapper that
may be generated if the compiler isn't told not to.
Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>
---
arch/powerpc/boot/Makefile | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- linux-2.6.orig/arch/powerpc/boot/Makefile
+++ linux-2.6/arch/powerpc/boot/Makefile
@@ -24,7 +24,7 @@ all: $(obj)/zImage
HOSTCC := gcc
BOOTCFLAGS := $(HOSTCFLAGS) -fno-builtin -nostdinc -isystem \
- $(shell $(CROSS32CC) -print-file-name=include) -fPIC
+ $(shell $(CROSS32CC) -print-file-name=include) -fPIC -msoft-float
BOOTAFLAGS := -D__ASSEMBLY__ $(BOOTCFLAGS) -traditional -nostdinc
ifeq ($(call cc-option-yn, -fstack-protector),y)
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: [PATCH] Add -msoft-float to BOOTCFLAGS
2007-05-15 0:52 [PATCH] Add -msoft-float to BOOTCFLAGS Josh Boyer
@ 2007-05-15 1:08 ` Benjamin Herrenschmidt
2007-05-15 4:46 ` Segher Boessenkool
1 sibling, 0 replies; 3+ messages in thread
From: Benjamin Herrenschmidt @ 2007-05-15 1:08 UTC (permalink / raw)
To: Josh Boyer; +Cc: linuxppc-dev, paulus
On Mon, 2007-05-14 at 19:52 -0500, Josh Boyer wrote:
> We want to avoid any float instructions that may occur in the wrapper that
> may be generated if the compiler isn't told not to.
>
> Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>
Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
> ---
> arch/powerpc/boot/Makefile | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> --- linux-2.6.orig/arch/powerpc/boot/Makefile
> +++ linux-2.6/arch/powerpc/boot/Makefile
> @@ -24,7 +24,7 @@ all: $(obj)/zImage
>
> HOSTCC := gcc
> BOOTCFLAGS := $(HOSTCFLAGS) -fno-builtin -nostdinc -isystem \
> - $(shell $(CROSS32CC) -print-file-name=include) -fPIC
> + $(shell $(CROSS32CC) -print-file-name=include) -fPIC -msoft-float
> BOOTAFLAGS := -D__ASSEMBLY__ $(BOOTCFLAGS) -traditional -nostdinc
>
> ifeq ($(call cc-option-yn, -fstack-protector),y)
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: [PATCH] Add -msoft-float to BOOTCFLAGS
2007-05-15 0:52 [PATCH] Add -msoft-float to BOOTCFLAGS Josh Boyer
2007-05-15 1:08 ` Benjamin Herrenschmidt
@ 2007-05-15 4:46 ` Segher Boessenkool
1 sibling, 0 replies; 3+ messages in thread
From: Segher Boessenkool @ 2007-05-15 4:46 UTC (permalink / raw)
To: Josh Boyer; +Cc: linuxppc-dev, paulus
> HOSTCC := gcc
> BOOTCFLAGS := $(HOSTCFLAGS) -fno-builtin -nostdinc -isystem \
> - $(shell $(CROSS32CC) -print-file-name=include) -fPIC
> + $(shell $(CROSS32CC) -print-file-name=include) -fPIC -msoft-float
> BOOTAFLAGS := -D__ASSEMBLY__ $(BOOTCFLAGS) -traditional -nostdinc
While you're at it, could you get rid of the HOSTCFLAGS
inclusion here? The host compiler has absolutely nothing
to do with the 32-bit powerpc compiler.
There are some more flags you might want to add btw
(-nostdlib, -mno-multiple, stuff like that -- just examples,
don't blindly add these).
Segher
^ permalink raw reply [flat|nested] 3+ messages in thread
end of thread, other threads:[~2007-05-15 4:46 UTC | newest]
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2007-05-15 1:08 ` Benjamin Herrenschmidt
2007-05-15 4:46 ` Segher Boessenkool
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