UbiquitousOS
/
OpenCloudOS-Kernel
mirror of https://gitee.com/OpenCloudOS/OpenCloudOS-Kernel.git
11
0
Fork 0
Code Issues Projects Releases Wiki Activity

ARM: 5734/1: arm: fix compilation of entry-common.S for older CPUs 

Commit 181f817eaa introduced some new code to entry-common.S
Sadly, this new code uses 'bx' instruction which is available only on
ARMv5 and higher CPUs. This causes following compilation errors when
building kernel for StrongARM (ARMv4):

arch/arm/kernel/entry-common.S: Assembler messages:
arch/arm/kernel/entry-common.S:129: Error: selected processor does not
 support `bx ip'
arch/arm/kernel/entry-common.S:138: Error: selected processor does not
 support `bx ip'

Fix these errors by using 'mov pc' instead of 'bx'.

Signed-off-by: Dmitry Artamonow <mad_soft@inbox.ru>
Acked-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
This commit is contained in:
Dmitry Artamonow 2009-09-29 06:12:37 +01:00 committed by Russell King
parent ca6cfa8346
commit 6176d39471
1 changed files with 2 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
arch/arm/kernel/entry-common.S
View File

@ -126,7 +126,7 @@ ENTRY(__gnu_mcount_nc)
cmp r0, r2
bne gnu_trace
ldmia sp!, {r0-r3, ip, lr}
bx ip
mov pc, ip
gnu_trace:
ldr r1, [sp, #20] @ lr of instrumented routine
@ -135,7 +135,7 @@ gnu_trace:
mov lr, pc
mov pc, r2
ldmia sp!, {r0-r3, ip, lr}
bx ip
mov pc, ip
ENTRY(mcount)
stmdb sp!, {r0-r3, lr}