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barebox / arch / arm / include / asm / common.h
@Sascha Hauer Sascha Hauer on 21 Mar 2018 992 bytes ARM: aarch64: implement get_pc()
#ifndef __ASM_ARM_COMMON_H
#define __ASM_ARM_COMMON_H

static inline unsigned long get_pc(void)
{
	unsigned long pc;
#ifdef CONFIG_CPU_32
	__asm__ __volatile__(
                "mov    %0, pc\n"
                : "=r" (pc)
                :
                : "memory");
#else
	__asm__ __volatile__(
                "adr    %0, .\n"
                : "=r" (pc)
                :
                : "memory");
#endif
	return pc;
}

static inline unsigned long get_lr(void)
{
	unsigned long lr;

	__asm__ __volatile__(
                "mov    %0, lr\n"
                : "=r" (lr)
                :
                : "memory");

	return lr;
}

static inline unsigned long get_sp(void)
{
	unsigned long sp;

	__asm__ __volatile__(
                "mov    %0, sp\n"
                : "=r" (sp)
                :
                : "memory");

	return sp;
}

static inline void arm_setup_stack(unsigned long top)
{
	__asm__ __volatile__("mov sp, %0" : : "r"(top));
}

#endif /* __ASM_ARM_COMMON_H */