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

Signed-off-by: Mike Frysinger <vapier.adi@gmail.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>

1 files changed, 4 insertions, 0 deletions

diff --git a/arch/blackfin/kernel/vmlinux.lds.S b/arch/blackfin/kernel/vmlinux.lds.S
index 4b4341da0585..27952ae047d8 100644
--- a/arch/blackfin/kernel/vmlinux.lds.S
+++ b/arch/blackfin/kernel/vmlinux.lds.S
@@ -183,6 +183,7 @@ SECTIONS
                 . = ALIGN(4);
                 __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))
         {
@@ -200,6 +201,7 @@ SECTIONS
                 . = ALIGN(4);
                 __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))
         {
@@ -214,6 +216,7 @@ SECTIONS
                 . = ALIGN(4);
                 __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);
 
@@ -239,6 +242,7 @@ SECTIONS
                 . = ALIGN(4);
                 __ebss_l2 = .;
         }
+        ASSERT (SIZEOF(.text_data_l1) <= L2_LENGTH, "L2 overflow!")
 
         /* Force trailing alignment of our init section so that when we
          * free our init memory, we don't leave behind a partial page.