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SubjectRe: [PATCH 2/2] initramfs: Fix initramfs size calculation
On Tue, Aug 31, 2010 at 04:23, Hendrik Brueckner wrote:
> --- a/usr/initramfs_data.S
> +++ b/usr/initramfs_data.S
> @@ -28,4 +24,14 @@ SECTIONS
>  #include <linux/stringify.h>
>
>  .section .init.ramfs,"a"
> +__irf_start:
>  .incbin __stringify(INITRAMFS_IMAGE)
> +__irf_end:
> +.section .init.ramfs.info,"a"
> +.globl __initramfs_size
> +__initramfs_size:
> +#ifdef CONFIG_32BIT
> +       .long __irf_end - __irf_start
> +#else
> +       .quad __irf_end - __irf_start
> +#endif

i'm pretty sure this breaks on every symbol-prefixed arch. at least,
it broke every Blackfin board:
init/built-in.o: In function `populate_rootfs':
init/initramfs.c:(.init.text+0x2548): undefined reference to `__initramfs_size'
init/initramfs.c:(.init.text+0x254e): undefined reference to `__initramfs_size'
make: *** [.tmp_vmlinux1] Error 1

look at VMLINUX_SYMBOL() in the vmlinux.lds.h file
-mike
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