shithub: riscv

ref: 361b65e4df0b4a3562a6e57b0f7b8009c59c3f2b
dir: /sys/src/libc/power/notejmp.c/

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#include <u.h>
#include <libc.h>
#include <ureg.h>

int	__noterestore(void);

void
notejmp(void *vr, jmp_buf j, int ret)
{
	struct Ureg *r = vr;

	/*
	 * song and dance to get around the kernel smashing r3 in noted
	 */
	r->r4 = ret;
	if(ret == 0)
		r->r4 = 1;
	r->r5 = j[JMPBUFPC] - JMPBUFDPC;
	r->pc = (ulong)__noterestore;
	r->sp = j[JMPBUFSP];
	noted(NCONT);
}