mirror of
https://github.com/radareorg/radare2.git
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1029 lines
31 KiB
C
1029 lines
31 KiB
C
/* radare - LGPL - Copyright 2009-2013 - pancake */
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static void dot_r_graph_traverse(RCore *core, RGraph *t) {
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RGraphNode *n, *n2;
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RListIter *iter, *iter2;
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const char *gfont = r_config_get (core->config, "graph.font");
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r_cons_printf ("digraph code {\n"
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"graph [bgcolor=white];\n"
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" node [color=lightgray, style=filled"
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" shape=box fontname=\"%s\" fontsize=\"8\"];\n", gfont);
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r_list_foreach (t->nodes, iter, n) {
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r_cons_printf ("\"0x%08"PFMT64x"\" [URL=\"0x%08"PFMT64x
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"\" color=\"lightgray\" label=\"0x%08"PFMT64x
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" (%d)\"]\n", n->addr, n->addr, n->addr, n->refs);
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r_list_foreach (n->children, iter2, n2) {
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r_cons_printf ("\"0x%08"PFMT64x"\" -> \"0x%08"PFMT64x
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"\" [color=\"red\"];\n", n->addr, n2->addr);
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}
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}
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r_cons_printf ("}\n");
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}
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static int checkbpcallback(RCore *core) ;
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static int step_until(RCore *core, ut64 addr) {
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ut64 off = r_debug_reg_get (core->dbg, "pc");
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if (off == 0LL) {
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eprintf ("Cannot 'drn pc'\n");
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return R_FALSE;
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}
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if (addr == 0LL) {
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eprintf ("Cannot continue until address 0\n");
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return R_FALSE;
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}
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do {
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r_debug_step (core->dbg, 1);
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if (checkbpcallback (core)) {
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eprintf ("Interrupted by a breakpoint\n");
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break;
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}
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off = r_debug_reg_get (core->dbg, "pc");
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// check breakpoint here
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} while (off != addr);
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return R_TRUE;
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}
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/* until end of frame */
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static int step_until_eof(RCore *core) {
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ut64 off, now = r_debug_reg_get (core->dbg, "sp");
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do {
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r_debug_step (core->dbg, 1);
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if (checkbpcallback (core)) {
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eprintf ("Interrupted by a breakpoint\n");
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break;
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}
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off = r_debug_reg_get (core->dbg, "sp");
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// check breakpoint here
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} while (off <= now);
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return R_TRUE;
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}
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static int step_line(RCore *core, int times) {
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char file[512], file2[512];
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int find_meta, line = -1, line2 = -1;
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ut64 off = r_debug_reg_get (core->dbg, "pc");
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if (off == 0LL) {
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eprintf ("Cannot 'drn pc'\n");
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return R_FALSE;
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}
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file[0] = 0;
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file2[0] = 0;
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if (r_bin_meta_get_line (core->bin, off, file, sizeof (file), &line)) {
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eprintf ("--> 0x%08"PFMT64x" %s : %d\n", off, file, line);
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eprintf ("--> %s\n", r_file_slurp_line (file, line, 0));
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find_meta = R_FALSE;
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} else {
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eprintf ("--> Stepping until dwarf line\n");
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find_meta = R_TRUE;
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}
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do {
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r_debug_step (core->dbg, 1);
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if (checkbpcallback (core)) {
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eprintf ("Interrupted by a breakpoint\n");
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break;
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}
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off = r_debug_reg_get (core->dbg, "pc");
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if (!r_bin_meta_get_line (core->bin, off, file2, sizeof (file2), &line2)) {
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if (find_meta)
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continue;
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eprintf ("Cannot retrieve dwarf info at 0x%08"PFMT64x"\n", off);
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return R_FALSE;
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}
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} while (!strcmp (file, file2) && line == line2);
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eprintf ("--> 0x%08"PFMT64x" %s : %d\n", off, file2, line2);
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eprintf ("--> %s\n", r_file_slurp_line (file2, line2, 0));
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return R_TRUE;
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}
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static void cmd_debug_pid(RCore *core, const char *input) {
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const char *ptr;
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int pid, sig;
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switch (input[1]) {
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case 'k':
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/* XXX: not for threads? signal is for a whole process!! */
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/* XXX: but we want fine-grained access to process resources */
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pid = atoi (input+2);
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ptr = strchr (input, ' ');
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sig = ptr? atoi (ptr+1): 0;
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if (pid > 0) {
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eprintf ("Sending signal '%d' to pid '%d'\n", sig, pid);
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r_debug_kill (core->dbg, 0, R_FALSE, sig);
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} else eprintf ("cmd_debug_pid: Invalid arguments (%s)\n", input);
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break;
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case 'n':
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eprintf ("TODO: debug_fork: %d\n", r_debug_fork (core->dbg));
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break;
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case 't':
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switch (input[2]) {
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case 'n':
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eprintf ("TODO: debug_clone: %d\n", r_debug_clone (core->dbg));
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break;
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case '=':
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case ' ':
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r_debug_select (core->dbg, core->dbg->pid,
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(int) r_num_math (core->num, input+3));
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break;
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default:
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r_debug_thread_list (core->dbg, core->dbg->pid);
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break;
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}
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break;
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case 'a':
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if (input[2]) {
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r_debug_attach (core->dbg, (int) r_num_math (
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core->num, input+2));
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} else r_debug_attach (core->dbg, core->file->fd->fd);
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r_debug_select (core->dbg, core->dbg->pid, core->dbg->tid);
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r_config_set_i (core->config, "dbg.swstep",
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(core->dbg->h && !core->dbg->h->canstep));
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break;
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case 'f':
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r_debug_select (core->dbg, core->file->fd->fd, core->dbg->tid);
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break;
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case '=':
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r_debug_select (core->dbg,
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(int) r_num_math (core->num, input+2), core->dbg->tid);
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break;
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case '*':
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r_debug_pid_list (core->dbg, 0);
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break;
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case ' ':
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r_debug_pid_list (core->dbg,
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(int) r_num_math (core->num, input+2));
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break;
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case '?':
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r_cons_printf ("Usage: dp[=][pid]\n"
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" dp list current pid and childrens\n"
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" dp 748 list children of pid\n"
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" dp* list all attachable pids\n"
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" dpa 377 attach and select this pid\n"
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" dp=748 select this pid\n"
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" dpn Create new process (fork)\n"
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" dpnt Create new thread (clone)\n"
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" dpt List threads of current pid\n"
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" dpt 74 List threads of given process\n"
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" dpt=64 Attach to thread\n"
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" dpk P S send signal S to P process id\n");
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break;
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default:
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eprintf ("selected: %d %d\n", core->dbg->pid, core->dbg->tid);
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r_debug_pid_list (core->dbg, core->dbg->pid);
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break;
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}
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}
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static void cmd_debug_backtrace (RCore *core, const char *input) {
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RAnalOp analop;
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ut64 addr, len = r_num_math (core->num, input);
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if (len == 0) {
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r_bp_traptrace_list (core->dbg->bp);
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} else {
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ut64 oaddr = 0LL;
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eprintf ("Trap tracing 0x%08"PFMT64x"-0x%08"PFMT64x"\n",
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core->offset, core->offset+len);
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r_reg_arena_swap (core->dbg->reg, R_TRUE);
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r_bp_traptrace_reset (core->dbg->bp, R_TRUE);
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r_bp_traptrace_add (core->dbg->bp, core->offset, core->offset+len);
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r_bp_traptrace_enable (core->dbg->bp, R_TRUE);
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do {
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ut8 buf[32];
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r_debug_continue (core->dbg);
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if (checkbpcallback (core)) {
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eprintf ("Interrupted by breakpoint\n");
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break;
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}
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addr = r_debug_reg_get (core->dbg, "pc");
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if (addr == 0LL) {
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eprintf ("pc=0\n");
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break;
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}
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if (addr == oaddr) {
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eprintf ("pc=opc\n");
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break;
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}
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oaddr = addr;
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/* XXX Bottleneck..we need to reuse the bytes read by traptrace */
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// XXX Do asm.arch should define the max size of opcode?
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r_core_read_at (core, addr, buf, 32); // XXX longer opcodes?
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r_anal_op (core->anal, &analop, addr, buf, sizeof (buf));
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} while (r_bp_traptrace_at (core->dbg->bp, addr, analop.length));
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r_bp_traptrace_enable (core->dbg->bp, R_FALSE);
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}
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}
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static int cmd_debug_map(RCore *core, const char *input) {
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char file[128];
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RListIter *iter;
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RDebugMap *map;
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ut64 addr = core->offset;
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switch (input[0]) {
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case '?':
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r_cons_printf (
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"Usage: dm [size]\n"
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" dm List memory maps of target process\n"
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" dm* Same as above but in radare commands\n"
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" dm 4096 Allocate 4096 bytes in child process\n"
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" dm-0x8048 Deallocate memory map of address 0x8048\n"
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" dmp A S rwx Change page at A with size S protection permissions\n"
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" dmd [file] Dump current debug map region to a file (from-to.dmp) (see Sd)\n"
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" dml file Load contents of file into the current map region (see Sl)\n"
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" dmi [addr|libname] [symname] List symbols of target lib\n"
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" dmi* [addr|libname] [symname] Same as above but in radare commands\n"
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//" dm rw- esp 9K set 9KB of the stack as read+write (no exec)\n"
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"TODO: map files in process memory. (dmf file @ [addr])\n");
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break;
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case 'p':
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if (input[1] == ' ') {
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int perms;
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char *p, *q;
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ut64 size, addr;
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p = strchr (input+2, ' ');
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if (p) {
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*p++ = 0;
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q = strchr (p, ' ');
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if (q) {
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*q++ = 0;
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addr = r_num_math (core->num, input+2);
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size = r_num_math (core->num, p);
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perms = r_str_rwx (q);
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eprintf ("(%s)(%s)(%s)\n", input+2, p, q);
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eprintf ("0x%08"PFMT64x" %d %o\n", addr, (int) size, perms);
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r_debug_map_protect (core->dbg, addr, size, perms);
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} else eprintf ("See dm?\n");
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} else eprintf ("See dm?\n");
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} else eprintf ("See dm?\n");
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break;
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case 'd':
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r_debug_map_sync (core->dbg); // update process memory maps
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r_list_foreach (core->dbg->maps, iter, map) {
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if (addr >= map->addr && addr < map->addr_end) {
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ut8 *buf = malloc (map->size);
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#warning TODO: use mmap here. we need a portable implementation
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if (!buf) {
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eprintf ("Cannot allocate 0x%08"PFMT64x" bytes\n", map->size);
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return R_FALSE;
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}
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r_io_read_at (core->io, map->addr, buf, map->size);
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if (input[1]==' ' && input[2]) {
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strncpy (file, input+2, sizeof (file));
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} else snprintf (file, sizeof (file),
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"0x%08"PFMT64x"-0x%08"PFMT64x"-%s.dmp",
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map->addr, map->addr_end, r_str_rwx_i (map->perm));
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if (!r_file_dump (file, buf, map->size)) {
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eprintf ("Cannot write '%s'\n", file);
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free (buf);
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return R_FALSE;
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}
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eprintf ("Dumped %d bytes into %s\n", (int)map->size, file);
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free (buf);
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return R_TRUE;
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}
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}
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eprintf ("No debug region found here\n");
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return R_FALSE;
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case 'l':
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if (input[1] != ' ') {
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eprintf ("Usage: dml [file]\n");
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return R_FALSE;
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}
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r_debug_map_sync (core->dbg); // update process memory maps
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r_list_foreach (core->dbg->maps, iter, map) {
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if (addr >= map->addr && addr < map->addr_end) {
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int sz;
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char *buf = r_file_slurp (input+2, &sz);
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#warning TODO: use mmap here. we need a portable implementation
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if (!buf) {
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eprintf ("Cannot allocate 0x%08"PFMT64x" bytes\n", map->size);
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return R_FALSE;
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}
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r_io_write_at (core->io, map->addr, (const ut8*)buf, sz);
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if (sz != map->size)
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eprintf ("File size differs from region size (%d vs %"PFMT64d")\n",
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sz, map->size);
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eprintf ("Loaded %d bytes into the map region at 0x%08"PFMT64x"\n",
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sz, map->addr);
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free (buf);
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return R_TRUE;
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}
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}
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eprintf ("No debug region found here\n");
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return R_FALSE;
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case 'i':
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{ // Move to a separate function
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RCoreBinFilter filter;
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const char *libname = NULL, *symname = NULL;
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char *ptr = strdup (r_str_trim_head ((char*)input+2));
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int i;
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ut64 baddr;
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addr = 0LL;
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i = r_str_word_set0 (ptr);
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switch (i) {
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case 2: // get symname
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symname = r_str_word_get0 (ptr, 1);
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case 1: // get addr|libname
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addr = r_num_math (core->num, r_str_word_get0 (ptr, 0));
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if (!addr) libname = r_str_word_get0 (ptr, 0);
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}
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r_debug_map_sync (core->dbg); // update process memory maps
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r_list_foreach (core->dbg->maps, iter, map) {
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if ((addr != -1 && (addr >= map->addr && addr < map->addr_end)) ||
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(libname != NULL && (strstr (map->name, libname)))) {
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RBinObject *o = core->bin->cur.o;
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filter.offset = 0LL;
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filter.name = (char *)symname;
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baddr = o->baddr;
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o->baddr = map->addr;
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r_core_bin_info (core, R_CORE_BIN_ACC_SYMBOLS, (input[1]=='*'),
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R_TRUE, &filter, 0);
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o->baddr = baddr;
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break;
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}
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}
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free (ptr);
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}
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break;
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case '*':
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r_debug_map_sync (core->dbg); // update process memory maps
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r_debug_map_list (core->dbg, core->offset, 1);
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break;
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case '-':
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case ' ':
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eprintf ("TODO\n");
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break;
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default:
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r_debug_map_sync (core->dbg); // update process memory maps
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r_debug_map_list (core->dbg, core->offset, 0);
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break;
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}
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return R_TRUE;
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}
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static void cmd_debug_reg(RCore *core, const char *str) {
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struct r_reg_item_t *r;
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const char *name;
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char *arg;
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int size, i, type = R_REG_TYPE_GPR;
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int bits = (core->dbg->bits & R_SYS_BITS_64)? 64: 32;
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switch (str[0]) {
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case '?':
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if (str[1]) {
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ut64 off;
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r_debug_reg_sync (core->dbg, R_REG_TYPE_GPR, R_FALSE);
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off = r_debug_reg_get (core->dbg, str+1);
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// r = r_reg_get (core->dbg->reg, str+1, 0);
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// if (r == NULL) eprintf ("Unknown register (%s)\n", str+1);
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r_cons_printf ("0x%08"PFMT64x"\n", off);
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//r_reg_get_value (core->dbg->reg, r));
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} else
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eprintf ("Usage: dr[*] [type] [size] - get/set registers\n"
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" dr show 'gpr' registers\n"
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" dr all show all registers\n"
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" dr flg 1 show flag registers ('flg' is type, see drt)\n"
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" dr 16 show 16 bit registers\n"
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" dr 32 show 32 bit registers\n"
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" dr eax=33 set register value. eax = 33\n"
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" dr? display this help message\n"
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" drt show all register types\n"
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" drn [pc] get register name for pc,sp,bp,a0-3\n"
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" dro show previous (old) values of registers\n"
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" dr= show registers in columns\n"
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" dr?eax show value of eax register\n"
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" .dr* include common register values in flags\n"
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" .dr- unflag all registers\n"
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" drp [file] load register metadata file\n"
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" drp display current register profile\n"
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" drb [type] display hexdump of gpr arena (WIP)\n");
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// TODO: 'drs' to swap register arenas and display old register valuez
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break;
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case 'b':
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{ // WORK IN PROGRESS // DEBUG COMMAND
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int len;
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const ut8 *buf = r_reg_get_bytes (core->dbg->reg, R_REG_TYPE_GPR, &len);
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//r_print_hexdump (core->print, 0LL, buf, len, 16, 16);
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r_print_hexdump (core->print, 0LL, buf, len, 32, 4);
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}
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break;
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case 'p':
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if (!str[1]) {
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if (core->dbg->reg->reg_profile_str) {
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//core->anal->reg = core->dbg->reg;
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r_cons_printf ("%s\n", core->dbg->reg->reg_profile_str);
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//r_cons_printf ("%s\n", core->anal->reg->reg_profile);
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} else eprintf ("No register profile defined. Try 'dr.'\n");
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} else r_reg_set_profile (core->dbg->reg, str+2);
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break;
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case 't':
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for (i=0; (name=r_reg_get_type (i)); i++)
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r_cons_printf ("%s\n", name);
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break;
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case 'n':
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name = r_reg_get_name (core->dbg->reg, r_reg_get_name_idx (str+2));
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if (name && *name)
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r_cons_printf ("%s\n", name);
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else eprintf ("Oops. try dn [pc|sp|bp|a0|a1|a2|a3]\n");
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break;
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case 'd':
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r_debug_reg_list (core->dbg, R_REG_TYPE_GPR, bits, 3); // XXX detect which one is current usage
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break;
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case 'o':
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r_reg_arena_swap (core->dbg->reg, R_FALSE);
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r_debug_reg_list (core->dbg, R_REG_TYPE_GPR, bits, 0); // XXX detect which one is current usage
|
|
r_reg_arena_swap (core->dbg->reg, R_FALSE);
|
|
break;
|
|
case '=':
|
|
if (r_debug_reg_sync (core->dbg, R_REG_TYPE_GPR, R_FALSE)) {
|
|
r_debug_reg_list (core->dbg, R_REG_TYPE_GPR, bits, 2); // XXX detect which one is current usage
|
|
} //else eprintf ("Cannot retrieve registers from pid %d\n", core->dbg->pid);
|
|
break;
|
|
case '*':
|
|
if (r_debug_reg_sync (core->dbg, R_REG_TYPE_GPR, R_FALSE))
|
|
r_debug_reg_list (core->dbg, R_REG_TYPE_GPR, bits, '*');
|
|
break;
|
|
case 'j':
|
|
case '\0':
|
|
if (r_debug_reg_sync (core->dbg, R_REG_TYPE_GPR, R_FALSE)) {
|
|
r_debug_reg_list (core->dbg, R_REG_TYPE_GPR, bits, str[0]);
|
|
} else eprintf ("Cannot retrieve registers from pid %d\n", core->dbg->pid);
|
|
break;
|
|
case ' ':
|
|
arg = strchr (str+1, '=');
|
|
if (arg) {
|
|
*arg = 0;
|
|
r = r_reg_get (core->dbg->reg, str+1, R_REG_TYPE_GPR);
|
|
if (r) {
|
|
r_cons_printf ("0x%08"PFMT64x" ->", str,
|
|
r_reg_get_value (core->dbg->reg, r));
|
|
r_reg_set_value (core->dbg->reg, r,
|
|
r_num_math (core->num, arg+1));
|
|
r_debug_reg_sync (core->dbg, R_REG_TYPE_GPR, R_TRUE);
|
|
r_cons_printf ("0x%08"PFMT64x"\n",
|
|
r_reg_get_value (core->dbg->reg, r));
|
|
} else eprintf ("Unknown register '%s'\n", str+1);
|
|
return;
|
|
}
|
|
size = atoi (str+1);
|
|
if (size==0) {
|
|
arg = strchr (str+1, ' ');
|
|
if (arg && size==0) {
|
|
*arg='\0';
|
|
size = atoi (arg);
|
|
} else size = core->dbg->bits;
|
|
type = r_reg_type_by_name (str+1);
|
|
}
|
|
if (type != R_REG_TYPE_LAST) {
|
|
r_debug_reg_sync (core->dbg, type, R_FALSE);
|
|
r_debug_reg_list (core->dbg, type, size, str[0]=='*');
|
|
} else eprintf ("cmd_debug_reg: Unknown type\n");
|
|
}
|
|
}
|
|
|
|
static int checkbpcallback(RCore *core) {
|
|
ut64 pc = r_debug_reg_get (core->dbg, "pc");
|
|
RBreakpointItem *bpi = r_bp_get (core->dbg->bp, pc);
|
|
if (bpi) {
|
|
if (bpi->data)
|
|
r_core_cmd (core, bpi->data, 0);
|
|
return R_TRUE;
|
|
}
|
|
return R_FALSE;
|
|
}
|
|
|
|
static int bypassbp(RCore *core) {
|
|
RBreakpointItem *bpi;
|
|
ut64 addr;
|
|
r_debug_reg_sync (core->dbg, R_REG_TYPE_GPR, R_FALSE);
|
|
addr = r_debug_reg_get (core->dbg, "pc");
|
|
bpi = r_bp_get (core->dbg->bp, addr);
|
|
if (!bpi) return R_FALSE;
|
|
/* XXX 2 if libr/debug/debug.c:226 is enabled */
|
|
r_debug_step (core->dbg, 1);
|
|
return R_TRUE;
|
|
}
|
|
|
|
|
|
static void static_debug_stop(void *u) {
|
|
RDebug *dbg = (RDebug *)u;
|
|
r_debug_stop (dbg);
|
|
}
|
|
|
|
static void r_core_cmd_bp(RCore *core, const char *input) {
|
|
ut64 addr;
|
|
RList *list;
|
|
RListIter *iter;
|
|
RDebugFrame *frame;
|
|
int i, hwbp = r_config_get_i (core->config, "dbg.hwbp");
|
|
switch (input[1]) {
|
|
case 't':
|
|
addr = UT64_MAX;
|
|
if (input[2]==' ' && input[3])
|
|
addr = r_num_math (core->num, input+2);
|
|
i = 0;
|
|
list = r_debug_frames (core->dbg, addr);
|
|
r_list_foreach (list, iter, frame) {
|
|
r_cons_printf ("%d 0x%08"PFMT64x" %d\n",
|
|
i++, frame->addr, frame->size);
|
|
}
|
|
r_list_destroy (list);
|
|
break;
|
|
case '\0':
|
|
r_bp_list (core->dbg->bp, input[1]=='*');
|
|
break;
|
|
case '-':
|
|
r_bp_del (core->dbg->bp, r_num_math (core->num, input+2));
|
|
break;
|
|
case 'c':
|
|
addr = r_num_math (core->num, input+2);
|
|
RBreakpointItem *bpi = r_bp_get (core->dbg->bp, addr);
|
|
if (bpi) {
|
|
char *arg = strchr (input+2, ' ');
|
|
if (arg)
|
|
arg = strchr (arg+1, ' ');
|
|
if (arg) {
|
|
free (bpi->data);
|
|
bpi->data = strdup (arg+1);
|
|
} else {
|
|
free (bpi->data);
|
|
bpi->data = NULL;
|
|
}
|
|
} else eprintf ("No breakpoint defined at 0x%08"PFMT64x"\n", addr);
|
|
break;
|
|
case 's':
|
|
addr = r_num_math (core->num, input+2);
|
|
RBreakpointItem *bp = r_bp_get (core->dbg->bp, addr);
|
|
if (bp) bp->enabled = !bp->enabled;
|
|
else {
|
|
if (hwbp) bp = r_bp_add_hw (core->dbg->bp, addr, 1, R_BP_PROT_EXEC);
|
|
else bp = r_bp_add_sw (core->dbg->bp, addr, 1, R_BP_PROT_EXEC);
|
|
if (!bp) eprintf ("Cannot set breakpoint (%s)\n", input+2);
|
|
}
|
|
r_bp_enable (core->dbg->bp, r_num_math (core->num, input+2), 0);
|
|
break;
|
|
case 'e':
|
|
r_bp_enable (core->dbg->bp, r_num_math (core->num, input+2), 1);
|
|
break;
|
|
case 'd':
|
|
r_bp_enable (core->dbg->bp, r_num_math (core->num, input+2), 0);
|
|
break;
|
|
case 'h':
|
|
if (input[2]==' ') {
|
|
if (!r_bp_use (core->dbg->bp, input+3))
|
|
eprintf ("Invalid name: '%s'.\n", input+3);
|
|
} else r_bp_plugin_list (core->dbg->bp);
|
|
break;
|
|
case '?':
|
|
r_cons_printf (
|
|
"Usage: db[ecdht] [[-]addr] [len] [rwx] [condstring]\n"
|
|
"db ; list breakpoints\n"
|
|
"db sym.main ; add breakpoint into sym.main\n"
|
|
"db 0x804800 ; add breakpoint\n"
|
|
"db -0x804800 ; remove breakpoint\n"
|
|
"dbs 0x8048000 ; toggle breakpoint on given address\n"
|
|
"dbe 0x8048000 ; enable breakpoint\n"
|
|
"dbc 0x8048000 cmd ; run command when breakpoint is hit\n"
|
|
"dbd 0x8048000 ; disable breakpoint\n"
|
|
"dbh x86 ; set/list breakpoint plugin handlers\n"
|
|
"Unrelated:\n"
|
|
"dbt [ebp] ; debug backtrace\n");
|
|
break;
|
|
default:
|
|
addr = r_num_math (core->num, input+2);
|
|
if (hwbp) bp = r_bp_add_hw (core->dbg->bp, addr, 1, R_BP_PROT_EXEC);
|
|
else bp = r_bp_add_sw (core->dbg->bp, addr, 1, R_BP_PROT_EXEC);
|
|
if (!bp) eprintf ("Cannot set breakpoint (%s)\n", input+2);
|
|
break;
|
|
}
|
|
}
|
|
|
|
static void r_core_debug_trace_calls (RCore *core) {
|
|
int n = 0, t = core->dbg->trace->enabled;
|
|
/*RGraphNode *gn;*/
|
|
core->dbg->trace->enabled = 0;
|
|
r_graph_plant (core->dbg->graph);
|
|
r_cons_break (static_debug_stop, core->dbg);
|
|
r_reg_arena_swap (core->dbg->reg, R_TRUE);
|
|
for (;;) {
|
|
ut8 buf[32];
|
|
ut64 addr;
|
|
RAnalOp aop;
|
|
if (r_cons_singleton ()->breaked)
|
|
break;
|
|
r_debug_step (core->dbg, 1);
|
|
r_debug_reg_sync (core->dbg, R_REG_TYPE_GPR, R_FALSE);
|
|
addr = r_debug_reg_get (core->dbg, "pc");
|
|
r_io_read_at (core->io, addr, buf, sizeof (buf));
|
|
r_anal_op (core->anal, &aop, addr, buf, sizeof (buf));
|
|
eprintf (" %d %"PFMT64x"\r", n++, addr);
|
|
switch (aop.type) {
|
|
case R_ANAL_OP_TYPE_UCALL:
|
|
// store regs
|
|
// step into
|
|
// get pc
|
|
r_debug_step (core->dbg, 1);
|
|
r_debug_reg_sync (core->dbg, R_REG_TYPE_GPR, R_FALSE);
|
|
addr = r_debug_reg_get (core->dbg, "pc");
|
|
eprintf ("0x%08"PFMT64x" ucall. computation may fail\n", addr);
|
|
r_graph_push (core->dbg->graph, addr, NULL);
|
|
// TODO: push pc+aop.length into the call path stack
|
|
break;
|
|
case R_ANAL_OP_TYPE_CALL:
|
|
r_graph_push (core->dbg->graph, addr, NULL);
|
|
break;
|
|
case R_ANAL_OP_TYPE_RET:
|
|
#if 0
|
|
// TODO: we must store ret value for each call in the graph path to do this check
|
|
r_debug_step (core->dbg, 1);
|
|
r_debug_reg_sync (core->dbg, R_REG_TYPE_GPR, R_FALSE);
|
|
addr = r_debug_reg_get (core->dbg, "pc");
|
|
// TODO: step into and check return address if correct
|
|
// if not correct we are hijacking the control flow (exploit!)
|
|
#endif
|
|
/*gn =*/ r_graph_pop (core->dbg->graph);
|
|
#if 0
|
|
if (addr != gn->addr) {
|
|
eprintf ("Oops. invalid return address 0x%08"PFMT64x
|
|
"\n0x%08"PFMT64x"\n", addr, gn->addr);
|
|
}
|
|
#endif
|
|
break;
|
|
}
|
|
if (checkbpcallback (core)) {
|
|
eprintf ("Interrupted by a breakpoint\n");
|
|
break;
|
|
}
|
|
}
|
|
r_graph_traverse (core->dbg->graph);
|
|
core->dbg->trace->enabled = t;
|
|
r_cons_break_end();
|
|
}
|
|
|
|
static int cmd_debug(void *data, const char *input) {
|
|
RCore *core = (RCore *)data;
|
|
int i, times, sig, follow=0;
|
|
ut64 addr;
|
|
char *ptr;
|
|
|
|
switch (input[0]) {
|
|
case 'x': // XXX : only for testing
|
|
r_debug_execute (core->dbg, (ut8*)
|
|
"\xc7\xc0\x03\x00\x00\x00\x33\xdb\x33"
|
|
"\xcc\xc7\xc2\x10\x00\x00\x00\xcd\x80", 18);
|
|
break;
|
|
case 't':
|
|
switch (input[1]) {
|
|
case '?':
|
|
r_cons_printf ("Usage: dt[*] [tag]\n");
|
|
r_cons_printf (" dtc - trace call/ret\n");
|
|
r_cons_printf (" dtg - graph call/ret trace\n");
|
|
r_cons_printf (" dtr - reset traces (instruction//cals)\n");
|
|
break;
|
|
case 'c':
|
|
if (r_debug_is_dead (core->dbg))
|
|
eprintf ("No process to debug.");
|
|
else r_core_debug_trace_calls (core);
|
|
break;
|
|
case 'g':
|
|
dot_r_graph_traverse (core, core->dbg->graph);
|
|
break;
|
|
case 'r':
|
|
r_graph_reset (core->dbg->graph);
|
|
r_debug_trace_free (core->dbg);
|
|
core->dbg->trace = r_debug_trace_new ();
|
|
break;
|
|
case '\0':
|
|
r_debug_trace_list (core->dbg, -1);
|
|
break;
|
|
default:
|
|
eprintf ("Wrong arg. See dt?\n");
|
|
break;
|
|
}
|
|
break;
|
|
case 'd':
|
|
switch (input[1]) {
|
|
case '\0':
|
|
r_debug_desc_list (core->dbg, 0);
|
|
break;
|
|
case '*':
|
|
r_debug_desc_list (core->dbg, 1);
|
|
break;
|
|
case 's':
|
|
// r_debug_desc_seek()
|
|
break;
|
|
case 'd':
|
|
// r_debug_desc_dup()
|
|
break;
|
|
case 'r':
|
|
// r_debug_desc_read()
|
|
break;
|
|
case 'w':
|
|
// r_debug_desc_write()
|
|
break;
|
|
case '-':
|
|
// close file
|
|
break;
|
|
case ' ':
|
|
// open file
|
|
break;
|
|
case '?':
|
|
default:
|
|
r_cons_printf ("Usage: dd[*sdrw-?]\n"
|
|
" dd list filedescriptors\n"
|
|
" dd* list filedescriptors (in radare commands)\n"
|
|
" dd? show this help\n");
|
|
break;
|
|
}
|
|
break;
|
|
case 's':
|
|
times = atoi (input+2);
|
|
if (times<1) times = 1;
|
|
switch (input[1]) {
|
|
case '?':
|
|
r_cons_printf ("Usage: ds[ol] [count]\n"
|
|
" ds step one instruction\n"
|
|
" ds 4 step 4 instructions\n"
|
|
" dss 3 skip 3 step instructions\n"
|
|
" dso 3 step over 3 instructions\n"
|
|
" dsp step into program (skip libs)\n"
|
|
" dsu addr step until address\n"
|
|
" dsf step until end of frame\n"
|
|
" dsl step one source line\n"
|
|
" dsl 40 step 40 source lines\n");
|
|
break;
|
|
case 'f':
|
|
step_until_eof(core);
|
|
break;
|
|
case 'u':
|
|
r_reg_arena_swap (core->dbg->reg, R_TRUE);
|
|
step_until (core, r_num_math (core->num, input+2)); // XXX dupped by times
|
|
break;
|
|
case 'p':
|
|
r_reg_arena_swap (core->dbg->reg, R_TRUE);
|
|
for (i=0; i<times; i++) {
|
|
ut8 buf[64];
|
|
ut64 addr;
|
|
RAnalOp aop;
|
|
r_debug_reg_sync (core->dbg, R_REG_TYPE_GPR, R_FALSE);
|
|
addr = r_debug_reg_get (core->dbg, "pc");
|
|
r_io_read_at (core->io, addr, buf, sizeof (buf));
|
|
r_anal_op (core->anal, &aop, addr, buf, sizeof (buf));
|
|
if (aop.type == R_ANAL_OP_TYPE_CALL) {
|
|
RIOSection *s = r_io_section_get (core->io, aop.jump);
|
|
if (!s) {
|
|
r_debug_step_over (core->dbg, times);
|
|
continue;
|
|
}
|
|
}
|
|
r_debug_step (core->dbg, 1);
|
|
if (checkbpcallback (core)) {
|
|
eprintf ("Interrupted by a breakpoint\n");
|
|
break;
|
|
}
|
|
}
|
|
break;
|
|
case 's':
|
|
{
|
|
ut64 addr = r_debug_reg_get (core->dbg, "pc");
|
|
r_reg_arena_swap (core->dbg->reg, R_TRUE);
|
|
for (i=0; i<times; i++) {
|
|
ut8 buf[64];
|
|
RAnalOp aop;
|
|
r_debug_reg_sync (core->dbg, R_REG_TYPE_GPR, R_FALSE);
|
|
r_io_read_at (core->io, addr, buf, sizeof (buf));
|
|
r_anal_op (core->anal, &aop, addr, buf, sizeof (buf));
|
|
if (aop.jump != UT64_MAX && aop.fail != UT64_MAX) {
|
|
eprintf ("Dont know how to skip this instruction\n");
|
|
break;
|
|
}
|
|
addr += aop.length;
|
|
}
|
|
r_debug_reg_set (core->dbg, "pc", addr);
|
|
}
|
|
break;
|
|
case 'o':
|
|
r_reg_arena_swap (core->dbg->reg, R_TRUE);
|
|
r_debug_step_over (core->dbg, times);
|
|
if (checkbpcallback (core)) {
|
|
eprintf ("Interrupted by a breakpoint\n");
|
|
break;
|
|
}
|
|
break;
|
|
case 'l':
|
|
r_reg_arena_swap (core->dbg->reg, R_TRUE);
|
|
step_line (core, times);
|
|
break;
|
|
default:
|
|
r_reg_arena_swap (core->dbg->reg, R_TRUE);
|
|
r_debug_reg_sync (core->dbg, R_REG_TYPE_GPR, R_FALSE);
|
|
r_debug_step (core->dbg, times);
|
|
if (checkbpcallback (core)) {
|
|
eprintf ("Interrupted by a breakpoint\n");
|
|
break;
|
|
}
|
|
}
|
|
follow = r_config_get_i (core->config, "dbg.follow");
|
|
break;
|
|
case 'b':
|
|
r_core_cmd_bp (core, input);
|
|
break;
|
|
case 'H':
|
|
eprintf ("TODO: transplant process\n");
|
|
break;
|
|
case 'c':
|
|
// TODO: we must use this for step 'ds' too maybe...
|
|
r_cons_break (static_debug_stop, core->dbg);
|
|
switch (input[1]) {
|
|
case '?':
|
|
eprintf("Usage: dc[?] -- continue execution\n"
|
|
" dc? show this help\n"
|
|
" dc continue execution of all children\n"
|
|
" dcf continue until fork (TODO)\n"
|
|
" dca [sym] [sym]. continue at every hit on any given symbol\n"
|
|
" dct [len] traptrace from curseek to len, no argument to list\n"
|
|
" dcu [addr] continue until address\n"
|
|
" dcu [addr] [end] continue until given address range\n"
|
|
" dco [num] step over N instructions\n"
|
|
" dcp continue until program code (mapped io section)\n"
|
|
" dcs [num] continue until syscall\n"
|
|
" dcc continue until call (use step into)\n"
|
|
" dcr continue until ret (uses step over)\n"
|
|
" dck [sig] [pid] continue sending kill 9 to process\n"
|
|
" dc [pid] continue execution of pid\n"
|
|
" dc[-pid] stop execution of pid\n"
|
|
"TODO: dcu/dcr needs dbg.untilover=true??\n"
|
|
"TODO: same for only user/libs side, to avoid steping into libs\n"
|
|
"TODO: support for threads?\n");
|
|
break;
|
|
case 'a':
|
|
eprintf ("TODO: dca\n");
|
|
break;
|
|
case 'c':
|
|
r_reg_arena_swap (core->dbg->reg, R_TRUE);
|
|
r_debug_continue_until_optype (core->dbg, R_ANAL_OP_TYPE_CALL, 0);
|
|
checkbpcallback (core);
|
|
break;
|
|
case 'r':
|
|
r_reg_arena_swap (core->dbg->reg, R_TRUE);
|
|
r_debug_continue_until_optype (core->dbg, R_ANAL_OP_TYPE_RET, 1);
|
|
checkbpcallback (core);
|
|
break;
|
|
case 'k':
|
|
// select pid and r_debug_continue_kill (core->dbg,
|
|
r_reg_arena_swap (core->dbg->reg, R_TRUE);
|
|
ptr = strchr (input+3, ' ');
|
|
if (ptr) {
|
|
bypassbp (core);
|
|
int old_pid = core->dbg->pid;
|
|
int old_tid = core->dbg->tid;
|
|
int pid = atoi (ptr+1);
|
|
int tid = pid; // XXX
|
|
*ptr = 0;
|
|
r_debug_select (core->dbg, pid, tid);
|
|
r_debug_continue_kill (core->dbg, atoi (input+2));
|
|
r_debug_select (core->dbg, old_pid, old_tid);
|
|
} else r_debug_continue_kill (core->dbg, atoi (input+2));
|
|
checkbpcallback (core);
|
|
break;
|
|
case 's':
|
|
if (input[2]==' ') {
|
|
sig = r_num_math (core->num, input+3);
|
|
if (sig <= 0) {
|
|
sig = r_syscall_get_num (core->anal->syscall, input+3);
|
|
if (sig == -1) {
|
|
eprintf ("Unknown syscall number\n");
|
|
return 0;
|
|
}
|
|
}
|
|
eprintf ("Running child until syscall %d\n", sig);
|
|
r_reg_arena_swap (core->dbg->reg, R_TRUE);
|
|
r_debug_continue_syscall (core->dbg, sig);
|
|
checkbpcallback (core);
|
|
} else eprintf ("Usage: dcs [syscall-name-or-number]\n");
|
|
break;
|
|
case 'p':
|
|
{ // XXX: this is very slow
|
|
RIOSection *s;
|
|
ut64 pc;
|
|
int n = 0;
|
|
int t = core->dbg->trace->enabled;
|
|
core->dbg->trace->enabled = 0;
|
|
r_cons_break (static_debug_stop, core->dbg);
|
|
do {
|
|
r_debug_step (core->dbg, 1);
|
|
r_debug_reg_sync (core->dbg, R_REG_TYPE_GPR, R_FALSE);
|
|
pc = r_debug_reg_get (core->dbg, "pc");
|
|
eprintf (" %d %"PFMT64x"\r", n++, pc);
|
|
s = r_io_section_get (core->io, pc);
|
|
if (r_cons_singleton ()->breaked)
|
|
break;
|
|
} while (!s);
|
|
eprintf ("\n");
|
|
core->dbg->trace->enabled = t;
|
|
r_cons_break_end();
|
|
return 1;
|
|
}
|
|
case 'u':
|
|
ptr = strchr (input+3, ' ');
|
|
// TODO : handle ^C here
|
|
if (ptr) { // TODO: put '\0' in *ptr to avoid
|
|
ut64 from, to, pc;
|
|
from = r_num_math (core->num, input+3);
|
|
to = r_num_math (core->num, ptr+1);
|
|
do {
|
|
r_debug_step (core->dbg, 1);
|
|
r_debug_reg_sync (core->dbg, R_REG_TYPE_GPR, R_FALSE);
|
|
pc = r_debug_reg_get (core->dbg, "pc");
|
|
eprintf ("Continue 0x%08"PFMT64x" > 0x%08"PFMT64x" < 0x%08"PFMT64x"\n",
|
|
from, pc, to);
|
|
} while (pc < from || pc > to);
|
|
return 1;
|
|
}
|
|
addr = r_num_math (core->num, input+2);
|
|
if (addr) {
|
|
eprintf ("Continue until 0x%08"PFMT64x"\n", addr);
|
|
bypassbp (core);
|
|
r_reg_arena_swap (core->dbg->reg, R_TRUE);
|
|
r_bp_add_sw (core->dbg->bp, addr, 1, R_BP_PROT_EXEC);
|
|
r_debug_continue (core->dbg);
|
|
checkbpcallback (core);
|
|
r_bp_del (core->dbg->bp, addr);
|
|
} else eprintf ("Cannot continue until address 0\n");
|
|
break;
|
|
case ' ':
|
|
{
|
|
int old_pid = core->dbg->pid;
|
|
int pid = atoi (input+2);
|
|
bypassbp (core);
|
|
r_reg_arena_swap (core->dbg->reg, R_TRUE);
|
|
r_debug_select (core->dbg, pid, core->dbg->tid);
|
|
r_debug_continue (core->dbg);
|
|
r_debug_select (core->dbg, old_pid, core->dbg->tid);
|
|
checkbpcallback (core);
|
|
}
|
|
break;
|
|
case 't':
|
|
cmd_debug_backtrace (core, input+2);
|
|
break;
|
|
default:
|
|
bypassbp (core);
|
|
r_reg_arena_swap (core->dbg->reg, R_TRUE);
|
|
r_debug_continue (core->dbg);
|
|
checkbpcallback (core);
|
|
}
|
|
follow = r_config_get_i (core->config, "dbg.follow");
|
|
r_cons_break_end();
|
|
break;
|
|
case 'm':
|
|
cmd_debug_map (core, input+1);
|
|
break;
|
|
case 'r':
|
|
cmd_debug_reg (core, input+1);
|
|
//r_core_cmd (core, "|reg", 0);
|
|
break;
|
|
case 'p':
|
|
cmd_debug_pid (core, input);
|
|
break;
|
|
case 'h':
|
|
if (input[1]==' ')
|
|
r_debug_use (core->dbg, input+2);
|
|
else r_debug_plugin_list (core->dbg);
|
|
break;
|
|
case 'o':
|
|
r_core_file_reopen (core, input[1]? input+2: NULL, 0);
|
|
break;
|
|
case 'w':
|
|
r_cons_break (static_debug_stop, core->dbg);
|
|
for (;!r_cons_singleton ()->breaked;) {
|
|
int pid = atoi (input+1);
|
|
//int opid = core->dbg->pid = pid;
|
|
int res = r_debug_kill (core->dbg, pid, 0, 0);
|
|
if (!res) break;
|
|
r_sys_usleep (200);
|
|
}
|
|
r_cons_break_end();
|
|
break;
|
|
default:
|
|
r_cons_printf ("Usage: d[sbhcrbo] [arg]\n"
|
|
" dh [handler] list or set debugger handler\n"
|
|
" dH [handler] transplant process to a new handler\n"
|
|
" dd file descriptors (!fd in r1)\n"
|
|
" ds[ol] N step, over, source line\n"
|
|
" do open process (reload, alias for 'oo')\n"
|
|
" dp[=*?t][pid] list, attach to process or thread id\n"
|
|
" dc[?] continue execution. dc? for more\n"
|
|
" dr[?] cpu registers, dr? for extended help\n"
|
|
" db[?] breakpoints\n"
|
|
" dbt display backtrace\n"
|
|
" dt[?r] [tag] display instruction traces (dtr=reset)\n"
|
|
" dm[?*] show memory maps\n"
|
|
" dw [pid] block prompt until pid dies\n");
|
|
break;
|
|
}
|
|
if (follow>0) {
|
|
ut64 pc = r_debug_reg_get (core->dbg, "pc");
|
|
if ((pc<core->offset) || (pc > (core->offset+follow)))
|
|
r_core_cmd0 (core, "sr pc");
|
|
}
|
|
return 0;
|
|
}
|