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Blackfin arch: add link-time asserts to make sure on-chip regions dont overflow

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Signed-off-by: Mike Frysinger <vapier.adi@gmail.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
This commit is contained in:
Mike Frysinger 2009-03-29 00:47:31 +08:00 committed by Bryan Wu
parent 1eb19e30ad
commit 4636b3019a
1 changed files with 4 additions and 0 deletions
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4
arch/blackfin/kernel/vmlinux.lds.S
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@ -183,6 +183,7 @@ SECTIONS
. = ALIGN(4); . = ALIGN(4);
__etext_l1 = .; __etext_l1 = .;
} }
ASSERT (SIZEOF(.text_l1) <= L1_CODE_LENGTH, "L1 text overflow!")
.data_l1 L1_DATA_A_START : AT(LOADADDR(.text_l1) + SIZEOF(.text_l1)) .data_l1 L1_DATA_A_START : AT(LOADADDR(.text_l1) + SIZEOF(.text_l1))
{ {
@ -200,6 +201,7 @@ SECTIONS
. = ALIGN(4); . = ALIGN(4);
__ebss_l1 = .; __ebss_l1 = .;
} }
ASSERT (SIZEOF(.data_a_l1) <= L1_DATA_A_LENGTH, "L1 data A overflow!")
.data_b_l1 L1_DATA_B_START : AT(LOADADDR(.data_l1) + SIZEOF(.data_l1)) .data_b_l1 L1_DATA_B_START : AT(LOADADDR(.data_l1) + SIZEOF(.data_l1))
{ {
@ -214,6 +216,7 @@ SECTIONS
. = ALIGN(4); . = ALIGN(4);
__ebss_b_l1 = .; __ebss_b_l1 = .;
} }
ASSERT (SIZEOF(.data_b_l1) <= L1_DATA_B_LENGTH, "L1 data B overflow!")
__l2_lma_start = LOADADDR(.data_b_l1) + SIZEOF(.data_b_l1); __l2_lma_start = LOADADDR(.data_b_l1) + SIZEOF(.data_b_l1);
@ -239,6 +242,7 @@ SECTIONS
. = ALIGN(4); . = ALIGN(4);
__ebss_l2 = .; __ebss_l2 = .;
} }
ASSERT (SIZEOF(.text_data_l1) <= L2_LENGTH, "L2 overflow!")
/* Force trailing alignment of our init section so that when we /* Force trailing alignment of our init section so that when we
* free our init memory, we don't leave behind a partial page. * free our init memory, we don't leave behind a partial page.