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[PATCH] ARM: Fix clone code when built for Thumb.
- From: Will Newton <will dot newton at linaro dot org>
- To: libc-ports at sourceware dot org
- Cc: patches at linaro dot org
- Date: Thu, 29 Aug 2013 20:17:34 +0100
- Subject: [PATCH] ARM: Fix clone code when built for Thumb.
- Authentication-results: sourceware.org; auth=none
The mov lr, pc instruction will lose the Thumb bit from the return address
so use blx lr instead.
ports/ChangeLog.arm:
2013-08-29 Will Newton <will.newton@linaro.org>
* sysdeps/unix/sysv/linux/arm/clone.S (__clone): Use blx
instead of mov lr, pc.
---
ports/sysdeps/unix/sysv/linux/arm/clone.S | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/ports/sysdeps/unix/sysv/linux/arm/clone.S b/ports/sysdeps/unix/sysv/linux/arm/clone.S
index ce9c2a5..6e74fa7 100644
--- a/ports/sysdeps/unix/sysv/linux/arm/clone.S
+++ b/ports/sysdeps/unix/sysv/linux/arm/clone.S
@@ -93,8 +93,8 @@ PSEUDO_END (__clone)
mov lr, pc
bx ip
#else
- mov lr, pc
- ldr pc, [sp], #8
+ ldr lr, [sp], #8
+ blx lr
#endif
@ and we are done, passing the return value through r0
--
1.8.1.4