On 16:54 Tue 11 Mar , Timur Tabi wrote:
> I'm trying to write code that uses the "pragma weak" feature of gcc to define
> a
> global variable that is used only if it isn't defined somewhere else. I
> thought
> I had it working, but then I noticed this:
>
> powerpc-linux-gnu-gcc -g -Os -fPIC -ffixed-r14 -meabi -D__KERNEL__
> -DTEXT_BASE=0xFE000000 -I/temp/u-boot.281/include -fno-builtin -ffreestanding
> -nostdinc -isystem
> /opt/freescale/usr/local/gcc-4.2.72-eglibc-2.5.72-1/powerpc-linux-gnu/lib/gcc/powerpc-linux-gnu/4.2.1/include
> -pipe -DCONFIG_PPC -D__powerpc__ -DCONFIG_MPC83XX -DCONFIG_E300 -ffixed-r2
> -msoft-float -Wall -Wstrict-prototypes -c -o fsl_i2c.o fsl_i2c.c
> fsl_i2c.c: In function 'get_fdr':
> fsl_i2c.c:72: warning: 'alias' attribute ignored
>
>
> Here's the code in question, which is in fsl_i2c.c:
>
replace this
> #pragma weak fsl_i2c_speed_map = default_fsl_i2c_speed_map
>
> struct fsl_i2c_speed_map default_fsl_i2c_speed_map[] = {
> {0, 0x3F}, {-1, 0x3F}
> };
by this
struct fsl_i2c_speed_map fsl_i2c_speed_map[] __attribute__((weak))= {
{0, 0x3F}, {-1, 0x3F}
};
> static u8 get_fdr(unsigned int i2c_clk, unsigned int speed)
> {
and remove this line
> extern struct fsl_i2c_speed_map fsl_i2c_speed_map[];
Best Regards,
J.
-------------------------------------------------------------------------
This SF.net email is sponsored by: Microsoft
Defy all challenges. Microsoft(R) Visual Studio 2008.
http://clk.atdmt.com/MRT/go/vse0120000070mrt/direct/01/
_______________________________________________
U-Boot-Users mailing list
[email protected]
https://lists.sourceforge.net/lists/listinfo/u-boot-users
