ref: 5030157da9e89da53739b13c36942a5355de669f
dir: /sys/src/9/port/rdb.c/
#include "u.h" #include "../port/lib.h" #include "mem.h" #include "dat.h" #include "fns.h" #include "io.h" #include "ureg.h" static char* getline(void) { static char buf[128]; int i, c; for(i = 0; i < sizeof(buf)-1 && (c=uartgetc()) != '\n'; i++) buf[i] = c; buf[i] = 0; return buf; } static void* addr(char *s, Ureg *ureg, char **p) { uvlong a; a = strtoull(s, p, 16); if(a < sizeof(Ureg)) return ((uchar*)ureg)+a; return (void*)(uintptr)a; } static void talkrdb(Ureg *ureg) { uchar *a; char *p, *req; if(consuart == nil) return; if(serialoq != nil){ qhangup(serialoq, nil); if(consuart->phys->disable != nil) consuart->phys->disable(consuart); if(consuart->phys->enable != nil) consuart->phys->enable(consuart, 0); serialoq = nil; } kprintoq = nil; /* turn off /dev/kprint if active */ iprint("Edebugger reset\n"); for(;;){ req = getline(); switch(*req){ case 'r': a = addr(req+1, ureg, nil); iprint("R%.8zux %.2ux %.2ux %.2ux %.2ux\n", (uintptr)a, a[0], a[1], a[2], a[3]); break; case 'w': a = addr(req+1, ureg, &p); *(ulong*)a = strtoul(p, nil, 16); iprint("W\n"); break; default: iprint("Eunknown message\n"); break; } } } void rdb(void) { splhi(); iprint("rdb..."); callwithureg(talkrdb); }