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Blackfin arch: fix bugs in linker script when using upstream binutils

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Fix a few problems I discovered when building a kernel with upstream CVS
binutils.

We have to add the NOTES macro to our linker script, since a kernel
built with --build-id is otherwise unable to boot.  Last time NOTES was
added, it broke things, but the definition of the macro has changed not
to rely on parts of the linker script that aren't present on Blackfin.

I also noticed that _l2_lma_start does not point into the kernel image,
but rather somewhere in L1/L2 space, which seems unintended.  Also, when
the L2 section was added to the linker script, the part following it which
computes then length of the init section was not updated.

Signed-off-by: Bernd Schmidt <bernds_cb1@t-online.de>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
This commit is contained in:
Bernd Schmidt 2009-01-07 23:14:39 +08:00 committed by Bryan Wu
parent 5e6d9f511e
commit 6f985294f7
1 changed files with 6 additions and 2 deletions
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8
arch/blackfin/kernel/vmlinux.lds.S
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@ -68,6 +68,8 @@ SECTIONS
__etext = .;
}
NOTES
/* Just in case the first read only is a 32-bit access */
RO_DATA(4)
@ -167,6 +169,7 @@ SECTIONS
. = ALIGN(4);
___initramfs_start = .;
*(.init.ramfs)
. = ALIGN(4);
___initramfs_end = .;
}
@ -212,7 +215,7 @@ SECTIONS
__ebss_b_l1 = .;
}
__l2_lma_start = .;
__l2_lma_start = LOADADDR(.data_b_l1) + SIZEOF(.data_b_l1);
.text_data_l2 L2_START : AT(LOADADDR(.data_b_l1) + SIZEOF(.data_b_l1))
{
@ -236,10 +239,11 @@ SECTIONS
. = ALIGN(4);
__ebss_l2 = .;
}
/* Force trailing alignment of our init section so that when we
* free our init memory, we don't leave behind a partial page.
*/
. = LOADADDR(.data_b_l1) + SIZEOF(.data_b_l1);
. = LOADADDR(.text_data_l2) + SIZEOF(.text_data_l2);
. = ALIGN(PAGE_SIZE);
___init_end = .;