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arm: mark save_boot_params_ret as a function

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As no '.type' was set for save_boot_params_ret in start.S, binutils
did not track whether it was emitted as A32 or T32.  By properly
marking save_boot_params_ret as a potential function entry, we can
make sure that the compiler will insert the appropriate instructions
for branching to save_boot_params_ret both for call-sites emitted as
A32 and T32.

Reported-by: Andy Yan <andy.yan@rock-chips.com>
Signed-off-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
Tested-by: Andy Yan <andy.yan@rock-chips.com>
This commit is contained in:
Philipp Tomsich 2017-10-10 16:21:12 +02:00
parent 7776cc011d
commit ff143d5556
1 changed files with 1 additions and 0 deletions
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1
arch/arm/cpu/armv7/start.S
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@ -31,6 +31,7 @@
.globl reset
.globl save_boot_params_ret
.type save_boot_params_ret,%function
#ifdef CONFIG_ARMV7_LPAE
.global switch_to_hypervisor_ret
#endif