2 * Copyright (c) 2015 The FreeBSD Foundation
4 * This software was developed by Semihalf under
5 * the sponsorship of the FreeBSD Foundation.
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31 #include <sys/cdefs.h>
32 __FBSDID("$FreeBSD$");
33 #include <sys/param.h>
37 #include <machine/pcb.h>
39 #include <ddb/db_sym.h>
41 #include <machine/armreg.h>
42 #include <machine/debug_monitor.h>
43 #include <machine/stack.h>
46 db_md_list_watchpoints(void)
49 dbg_show_watchpoint();
53 db_stack_trace_cmd(struct thread *td, struct unwind_state *frame)
61 uintptr_t pc = frame->pc;
63 if (!unwind_frame(td, frame))
66 sym = db_search_symbol(pc, DB_STGY_ANY, &offset);
67 if (sym == C_DB_SYM_NULL) {
71 db_symbol_values(sym, &name, &value);
73 db_printf("%s() at ", name);
74 db_printsym(frame->pc, DB_STGY_PROC);
77 db_printf("\t pc = 0x%016lx lr = 0x%016lx\n", pc,
79 db_printf("\t sp = 0x%016lx fp = 0x%016lx\n", frame->sp,
81 /* TODO: Show some more registers */
87 db_trace_thread(struct thread *thr, int count)
89 struct unwind_state frame;
92 if (thr != curthread) {
93 ctx = kdb_thr_ctx(thr);
95 frame.sp = (uintptr_t)ctx->pcb_sp;
96 frame.fp = (uintptr_t)ctx->pcb_x[29];
97 frame.pc = (uintptr_t)ctx->pcb_lr;
98 db_stack_trace_cmd(thr, &frame);
107 struct unwind_state frame;
110 __asm __volatile("mov %0, sp" : "=&r" (sp));
113 frame.fp = (uintptr_t)__builtin_frame_address(0);
114 frame.pc = (uintptr_t)db_trace_self;
115 db_stack_trace_cmd(curthread, &frame);