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arch: arm: Fix compile error on ARMv6-M SoCs with TICKLESS_KERNEL

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pop {lr} instruction is not supported in ARMv6-M, fixed by
using pop {r0}; mov lr, r0; instructions.

Jira: ZEP-2222

Signed-off-by: Vinayak Kariappa Chettimada <vich@nordicsemi.no>
This commit is contained in:
Vinayak Kariappa Chettimada 2017-06-01 09:22:34 +02:00 • committed by Anas Nashif
commit 1084165158
1 changed files with 5 additions and 0 deletions
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5
arch/arm/core/exc_exit.S
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@ -61,7 +61,12 @@ SECTION_SUBSEC_FUNC(TEXT, _HandlerModeExit, _IntExit)
#ifdef CONFIG_TICKLESS_KERNEL
push {lr}
bl _update_time_slice_before_swap
#if defined(CONFIG_ARMV6_M)
pop {r0}
mov lr, r0
#else
pop {lr}
#endif /* CONFIG_ARMV6_M */
#endif
/**