Blackfin arch: make sure the BSS and kernel load address are 4 byte a…

…ligned Signed-off-by: Mike Frysinger <vapier.adi@gmail.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
git-mirror · Aug 6, 2008 · 1375204 · 1375204
1 parent 09e1f70
commit 1375204
Show file tree

Hide file tree

Showing 2 changed files with 10 additions and 0 deletions.
diff --git a/arch/blackfin/kernel/vmlinux.lds.S b/arch/blackfin/kernel/vmlinux.lds.S
@@ -83,6 +83,7 @@ SECTIONS
 #if !L1_DATA_B_LENGTH
 		*(.l1.bss.B)
 #endif
+		. = ALIGN(4);
 		___bss_stop = .;
 	}
 

diff --git a/arch/blackfin/mach-common/arch_checks.c b/arch/blackfin/mach-common/arch_checks.c
@@ -27,6 +27,7 @@
  * 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
  */
 
+#include <asm/fixed_code.h>
 #include <asm/mach/anomaly.h>
 #include <asm/mach-common/clocks.h>
 
@@ -53,3 +54,11 @@
 # endif
 
 #endif /* CONFIG_BFIN_KERNEL_CLOCK */
+
+#if CONFIG_BOOT_LOAD < FIXED_CODE_END
+# error "The kernel load address must be after the fixed code section"
+#endif
+
+#if (CONFIG_BOOT_LOAD & 0x3)
+# error "The kernel load address must be 4 byte aligned"
+#endif