ref: 2a03ed80e4fc52c327e47e1749c97b4e2c1aa1d8
dir: /sys/src/libc/sparc/notejmp.c/
#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 r7 in noted */ r->r8 = ret; if(ret == 0) r->r8 = 1; r->r9 = j[JMPBUFPC] - JMPBUFDPC; r->pc = (ulong)__noterestore; r->npc = (ulong)__noterestore + 4; r->sp = j[JMPBUFSP]; noted(NCONT); }