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authorMike Frysinger <vapier.adi@gmail.com>2008-08-06 17:10:57 +0800
committerBryan Wu <cooloney@kernel.org>2008-08-06 17:10:57 +0800
commit1375204611f417541e55ee09e248acdbbb94356d (patch)
tree942acef30a954ac90e55ea1972c7dc406b476b81
parent09e1f70e31ed6ca23dd42feb10aa104fc1b04c40 (diff)
Blackfin arch: make sure the BSS and kernel load address are 4 byte aligned
Signed-off-by: Mike Frysinger <vapier.adi@gmail.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
-rw-r--r--arch/blackfin/kernel/vmlinux.lds.S1
-rw-r--r--arch/blackfin/mach-common/arch_checks.c9
2 files changed, 10 insertions, 0 deletions
diff --git a/arch/blackfin/kernel/vmlinux.lds.S b/arch/blackfin/kernel/vmlinux.lds.S
index 0896e38d610..d062597e621 100644
--- 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
index f9160d83b91..5986758b275 100644
--- 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