subject:"\[Xen\-devel\] \[PATCH 2\/6\] xen\/arm\: smccc\-1.1\: Handle function result as parameters"

Re: [Xen-devel] [PATCH 2/6] xen/arm: smccc-1.1: Handle function result as parameters

2018-08-27 Thread Volodymyr Babchuk

Hi, On 24.08.18 19:58, Julien Grall wrote: From: Marc Zyngier If someone has the silly idea to write something along those lines: extern u64 foo(void); void bar(struct arm_smccc_res *res) { arm_smccc_1_1_smc(0xbad, foo(), res); } they are in

[Xen-devel] [PATCH 2/6] xen/arm: smccc-1.1: Handle function result as parameters

2018-08-24 Thread Julien Grall

From: Marc Zyngier If someone has the silly idea to write something along those lines: extern u64 foo(void); void bar(struct arm_smccc_res *res) { arm_smccc_1_1_smc(0xbad, foo(), res); } they are in for a surprise, as this gets compiled as: