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MIPS: start.S: fix boundary check in relocate_code 

The loop code copies more data with one than
necessary due to the 'ble' instuction. Use the
'blt' instruction instead to fix that.

Due to the lack of suitable hardware the Xburst
specific code is compile tested only. However the
change is quite obvious.

Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Cc: Daniel Schwierzeck <daniel.schwierzeck@googlemail.com>
This commit is contained in:
Gabor Juhos 2013-01-24 06:27:51 +00:00 committed by Daniel Schwierzeck
parent 14fdd1a8bf
commit 5b7dd8163d
3 changed files with 3 additions and 3 deletions
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2
arch/mips/cpu/mips32/start.S
View File

@ -313,7 +313,7 @@ relocate_code:
lw t3, 0(t0) lw t3, 0(t0)
sw t3, 0(t1) sw t3, 0(t1)
addu t0, 4 addu t0, 4
ble t0, t2, 1b blt t0, t2, 1b
addu t1, 4 addu t1, 4
/* If caches were enabled, we would have to flush them here. */ /* If caches were enabled, we would have to flush them here. */

2
arch/mips/cpu/mips64/start.S
View File

@ -192,7 +192,7 @@ relocate_code:
lw t3, 0(t0) lw t3, 0(t0)
sw t3, 0(t1) sw t3, 0(t1)
daddu t0, 4 daddu t0, 4
ble t0, t2, 1b blt t0, t2, 1b
daddu t1, 4 daddu t1, 4
/* If caches were enabled, we would have to flush them here. */ /* If caches were enabled, we would have to flush them here. */

2
arch/mips/cpu/xburst/start.S
View File

@ -87,7 +87,7 @@ relocate_code:
lw t3, 0(t0) lw t3, 0(t0)
sw t3, 0(t1) sw t3, 0(t1)
addu t0, 4 addu t0, 4
ble t0, t2, 1b blt t0, t2, 1b
addu t1, 4 addu t1, 4
/* If caches were enabled, we would have to flush them here. */ /* If caches were enabled, we would have to flush them here. */