[U-Boot] [PATCH] make hang() a weak function

Stefan Roese
2013-04-16T10:29:26Z

Hi Andreas,

On 16.04.2013 12:14, Andreas Bie?mann wrote:
> This patch also does some minor coding style cleanups.
>
> Signed-off-by: Andreas Bie?mann <andreas.devel@googlemail.com>
>
> ---
> arch/arm/lib/board.c | 3 ++-
> arch/avr32/lib/board.c | 3 ++-
> arch/blackfin/lib/board.c | 3 ++-
> arch/m68k/lib/board.c | 3 ++-
> arch/microblaze/lib/board.c | 5 +++--
> arch/mips/lib/board.c | 3 ++-
> arch/nds32/lib/board.c | 3 ++-
> arch/nios2/lib/board.c | 5 +++--
> arch/openrisc/lib/board.c | 3 ++-
> arch/powerpc/lib/board.c | 4 ++--
> arch/sandbox/lib/board.c | 3 ++-
> arch/sh/lib/board.c | 3 ++-
> arch/sparc/lib/board.c | 3 ++-
> arch/x86/lib/board.c | 3 ++-
> common/board_f.c | 3 ++-
> common/spl/spl.c | 3 ++-
> drivers/mtd/nand/mxc_nand_spl.c | 3 ++-
> 17 files changed, 36 insertions(+), 20 deletions(-)
>
> diff --git a/arch/arm/lib/board.c b/arch/arm/lib/board.c
> index 0521178..4a00e16 100644
> --- a/arch/arm/lib/board.c
> +++ b/arch/arm/lib/board.c
> @@ -707,8 +707,9 @@ void board_init_r(gd_t *id, ulong dest_addr)
> /* NOTREACHED - no way out of command loop except booting */
> }
>
> -void hang(void)
> +void __hang(void)
> {
> puts("### ERROR ### Please RESET the board ###\n");
> for (;;);
> }
> +void hang(void) __attribute__((weak, alias("__hang")));

Please include "linux/compiler.h" and use:

void __weak hang(void)
{
puts("### ERROR ### Please RESET the board ###\n");
for (;;);
}

instead. No __attribute__ needed and easier to read.

Thanks,
Stefan