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wdenk47d1a6e2002-11-03 00:01:44 +00001/*
2 * BedBug Functions
3 */
4
5#include <common.h>
Simon Glass18d66532014-04-10 20:01:25 -06006#include <cli.h>
wdenk47d1a6e2002-11-03 00:01:44 +00007#include <command.h>
Simon Glass24b852a2015-11-08 23:47:45 -07008#include <console.h>
wdenk47d1a6e2002-11-03 00:01:44 +00009#include <linux/ctype.h>
10#include <net.h>
wdenk8bde7f72003-06-27 21:31:46 +000011#include <bedbug/type.h>
wdenk47d1a6e2002-11-03 00:01:44 +000012#include <bedbug/bedbug.h>
13#include <bedbug/regs.h>
14#include <bedbug/ppc.h>
wdenk47d1a6e2002-11-03 00:01:44 +000015
Wolfgang Denkd87080b2006-03-31 18:32:53 +020016DECLARE_GLOBAL_DATA_PTR;
17
Wolfgang Denkd87080b2006-03-31 18:32:53 +020018extern void show_regs __P ((struct pt_regs *));
19extern int run_command __P ((const char *, int));
wdenk47d1a6e2002-11-03 00:01:44 +000020
Wolfgang Denkd87080b2006-03-31 18:32:53 +020021ulong dis_last_addr = 0; /* Last address disassembled */
22ulong dis_last_len = 20; /* Default disassembler length */
23CPU_DEBUG_CTX bug_ctx; /* Bedbug context structure */
Simon Glasse1bf8242014-04-10 20:01:27 -060024
Wolfgang Denkd87080b2006-03-31 18:32:53 +020025
wdenk47d1a6e2002-11-03 00:01:44 +000026/* ======================================================================
27 * U-Boot's puts function does not append a newline, so the bedbug stuff
28 * will use this for the output of the dis/assembler.
29 * ====================================================================== */
30
Wolfgang Denkd87080b2006-03-31 18:32:53 +020031int bedbug_puts (const char *str)
wdenk47d1a6e2002-11-03 00:01:44 +000032{
Wolfgang Denkd87080b2006-03-31 18:32:53 +020033 /* -------------------------------------------------- */
wdenk47d1a6e2002-11-03 00:01:44 +000034
Wolfgang Denkd87080b2006-03-31 18:32:53 +020035 printf ("%s\r\n", str);
36 return 0;
37} /* bedbug_puts */
Simon Glasse1bf8242014-04-10 20:01:27 -060038
Wolfgang Denkd87080b2006-03-31 18:32:53 +020039
40
wdenk47d1a6e2002-11-03 00:01:44 +000041/* ======================================================================
42 * Initialize the bug_ctx structure used by the bedbug debugger. This is
43 * specific to the CPU since each has different debug registers and
44 * settings.
45 * ====================================================================== */
46
Ovidiu Panait5fb292f2020-04-20 10:31:45 +030047int bedbug_init(void)
wdenk47d1a6e2002-11-03 00:01:44 +000048{
Wolfgang Denkd87080b2006-03-31 18:32:53 +020049 /* -------------------------------------------------- */
Ovidiu Panait5fb292f2020-04-20 10:31:45 +030050 return 0;
Wolfgang Denkd87080b2006-03-31 18:32:53 +020051} /* bedbug_init */
Simon Glasse1bf8242014-04-10 20:01:27 -060052
Wolfgang Denkd87080b2006-03-31 18:32:53 +020053
54
wdenk47d1a6e2002-11-03 00:01:44 +000055/* ======================================================================
56 * Entry point from the interpreter to the disassembler. Repeated calls
57 * will resume from the last disassembled address.
58 * ====================================================================== */
Wolfgang Denk54841ab2010-06-28 22:00:46 +020059int do_bedbug_dis (cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
wdenk47d1a6e2002-11-03 00:01:44 +000060{
Wolfgang Denkd87080b2006-03-31 18:32:53 +020061 ulong addr; /* Address to start disassembly from */
62 ulong len; /* # of instructions to disassemble */
wdenk47d1a6e2002-11-03 00:01:44 +000063
Wolfgang Denkd87080b2006-03-31 18:32:53 +020064 /* -------------------------------------------------- */
wdenk47d1a6e2002-11-03 00:01:44 +000065
Wolfgang Denkd87080b2006-03-31 18:32:53 +020066 /* Setup to go from the last address if none is given */
67 addr = dis_last_addr;
68 len = dis_last_len;
wdenk47d1a6e2002-11-03 00:01:44 +000069
Wolfgang Denk47e26b12010-07-17 01:06:04 +020070 if (argc < 2)
Simon Glass4c12eeb2011-12-10 08:44:01 +000071 return CMD_RET_USAGE;
wdenk47d1a6e2002-11-03 00:01:44 +000072
Wolfgang Denkd87080b2006-03-31 18:32:53 +020073 if ((flag & CMD_FLAG_REPEAT) == 0) {
74 /* New command */
75 addr = simple_strtoul (argv[1], NULL, 16);
wdenk47d1a6e2002-11-03 00:01:44 +000076
Wolfgang Denkd87080b2006-03-31 18:32:53 +020077 /* If an extra param is given then it is the length */
78 if (argc > 2)
79 len = simple_strtoul (argv[2], NULL, 16);
80 }
wdenk47d1a6e2002-11-03 00:01:44 +000081
Wolfgang Denkd87080b2006-03-31 18:32:53 +020082 /* Run the disassembler */
83 disppc ((unsigned char *) addr, 0, len, bedbug_puts, F_RADHEX);
84
85 dis_last_addr = addr + (len * 4);
86 dis_last_len = len;
87 return 0;
88} /* do_bedbug_dis */
89
90U_BOOT_CMD (ds, 3, 1, do_bedbug_dis,
Peter Tyser2fb26042009-01-27 18:03:12 -060091 "disassemble memory",
Wolfgang Denka89c33d2009-05-24 17:06:54 +020092 "ds <address> [# instructions]");
Simon Glasse1bf8242014-04-10 20:01:27 -060093
wdenk47d1a6e2002-11-03 00:01:44 +000094/* ======================================================================
95 * Entry point from the interpreter to the assembler. Assembles
96 * instructions in consecutive memory locations until a '.' (period) is
97 * entered on a line by itself.
98 * ====================================================================== */
Wolfgang Denk54841ab2010-06-28 22:00:46 +020099int do_bedbug_asm (cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
wdenk47d1a6e2002-11-03 00:01:44 +0000100{
Wolfgang Denkd87080b2006-03-31 18:32:53 +0200101 long mem_addr; /* Address to assemble into */
102 unsigned long instr; /* Machine code for text */
103 char prompt[15]; /* Prompt string for user input */
104 int asm_err; /* Error code from the assembler */
wdenk47d1a6e2002-11-03 00:01:44 +0000105
Wolfgang Denkd87080b2006-03-31 18:32:53 +0200106 /* -------------------------------------------------- */
107 int rcode = 0;
wdenk47d1a6e2002-11-03 00:01:44 +0000108
Wolfgang Denk47e26b12010-07-17 01:06:04 +0200109 if (argc < 2)
Simon Glass4c12eeb2011-12-10 08:44:01 +0000110 return CMD_RET_USAGE;
wdenk47d1a6e2002-11-03 00:01:44 +0000111
Wolfgang Denkd87080b2006-03-31 18:32:53 +0200112 printf ("\nEnter '.' when done\n");
113 mem_addr = simple_strtoul (argv[1], NULL, 16);
wdenk47d1a6e2002-11-03 00:01:44 +0000114
Wolfgang Denkd87080b2006-03-31 18:32:53 +0200115 while (1) {
116 putc ('\n');
117 disppc ((unsigned char *) mem_addr, 0, 1, bedbug_puts,
118 F_RADHEX);
wdenk47d1a6e2002-11-03 00:01:44 +0000119
Wolfgang Denkd87080b2006-03-31 18:32:53 +0200120 sprintf (prompt, "%08lx: ", mem_addr);
Simon Glasse1bf8242014-04-10 20:01:27 -0600121 cli_readline(prompt);
Wolfgang Denkd87080b2006-03-31 18:32:53 +0200122
123 if (console_buffer[0] && strcmp (console_buffer, ".")) {
124 if ((instr =
125 asmppc (mem_addr, console_buffer,
126 &asm_err)) != 0) {
127 *(unsigned long *) mem_addr = instr;
128 mem_addr += 4;
129 } else {
130 printf ("*** Error: %s ***\n",
131 asm_error_str (asm_err));
132 rcode = 1;
133 }
134 } else {
135 break;
136 }
137 }
138 return rcode;
139} /* do_bedbug_asm */
140
141U_BOOT_CMD (as, 2, 0, do_bedbug_asm,
Wolfgang Denka89c33d2009-05-24 17:06:54 +0200142 "assemble memory", "as <address>");
Simon Glasse1bf8242014-04-10 20:01:27 -0600143
wdenk47d1a6e2002-11-03 00:01:44 +0000144/* ======================================================================
145 * Used to set a break point from the interpreter. Simply calls into the
146 * CPU-specific break point set routine.
147 * ====================================================================== */
148
Wolfgang Denk54841ab2010-06-28 22:00:46 +0200149int do_bedbug_break (cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
wdenk47d1a6e2002-11-03 00:01:44 +0000150{
Wolfgang Denkd87080b2006-03-31 18:32:53 +0200151 /* -------------------------------------------------- */
152 if (bug_ctx.do_break)
153 (*bug_ctx.do_break) (cmdtp, flag, argc, argv);
154 return 0;
wdenk47d1a6e2002-11-03 00:01:44 +0000155
Wolfgang Denkd87080b2006-03-31 18:32:53 +0200156} /* do_bedbug_break */
157
158U_BOOT_CMD (break, 3, 0, do_bedbug_break,
Peter Tyser2fb26042009-01-27 18:03:12 -0600159 "set or clear a breakpoint",
Wolfgang Denkd87080b2006-03-31 18:32:53 +0200160 " - Set or clear a breakpoint\n"
161 "break <address> - Break at an address\n"
162 "break off <bp#> - Disable breakpoint.\n"
Wolfgang Denka89c33d2009-05-24 17:06:54 +0200163 "break show - List breakpoints.");
Simon Glasse1bf8242014-04-10 20:01:27 -0600164
wdenk47d1a6e2002-11-03 00:01:44 +0000165/* ======================================================================
166 * Called from the debug interrupt routine. Simply calls the CPU-specific
167 * breakpoint handling routine.
168 * ====================================================================== */
169
170void do_bedbug_breakpoint (struct pt_regs *regs)
171{
Wolfgang Denkd87080b2006-03-31 18:32:53 +0200172 /* -------------------------------------------------- */
wdenk47d1a6e2002-11-03 00:01:44 +0000173
Wolfgang Denkd87080b2006-03-31 18:32:53 +0200174 if (bug_ctx.break_isr)
175 (*bug_ctx.break_isr) (regs);
wdenk47d1a6e2002-11-03 00:01:44 +0000176
Wolfgang Denkd87080b2006-03-31 18:32:53 +0200177 return;
178} /* do_bedbug_breakpoint */
Simon Glasse1bf8242014-04-10 20:01:27 -0600179
Wolfgang Denkd87080b2006-03-31 18:32:53 +0200180
181
wdenk47d1a6e2002-11-03 00:01:44 +0000182/* ======================================================================
183 * Called from the CPU-specific breakpoint handling routine. Enter a
184 * mini main loop until the stopped flag is cleared from the breakpoint
185 * context.
186 *
187 * This handles the parts of the debugger that are common to all CPU's.
188 * ====================================================================== */
189
Wolfgang Denkd87080b2006-03-31 18:32:53 +0200190void bedbug_main_loop (unsigned long addr, struct pt_regs *regs)
wdenk47d1a6e2002-11-03 00:01:44 +0000191{
Wolfgang Denkd87080b2006-03-31 18:32:53 +0200192 int len; /* Length of command line */
193 int flag; /* Command flags */
194 int rc = 0; /* Result from run_command */
195 char prompt_str[20]; /* Prompt string */
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200196 static char lastcommand[CONFIG_SYS_CBSIZE] = { 0 }; /* previous command */
Wolfgang Denkd87080b2006-03-31 18:32:53 +0200197 /* -------------------------------------------------- */
wdenk47d1a6e2002-11-03 00:01:44 +0000198
Wolfgang Denkd87080b2006-03-31 18:32:53 +0200199 if (bug_ctx.clear)
200 (*bug_ctx.clear) (bug_ctx.current_bp);
wdenk47d1a6e2002-11-03 00:01:44 +0000201
Wolfgang Denkd87080b2006-03-31 18:32:53 +0200202 printf ("Breakpoint %d: ", bug_ctx.current_bp);
203 disppc ((unsigned char *) addr, 0, 1, bedbug_puts, F_RADHEX);
wdenk47d1a6e2002-11-03 00:01:44 +0000204
Wolfgang Denkd87080b2006-03-31 18:32:53 +0200205 bug_ctx.stopped = 1;
206 bug_ctx.regs = regs;
wdenk47d1a6e2002-11-03 00:01:44 +0000207
Wolfgang Denkd87080b2006-03-31 18:32:53 +0200208 sprintf (prompt_str, "BEDBUG.%d =>", bug_ctx.current_bp);
wdenk47d1a6e2002-11-03 00:01:44 +0000209
Wolfgang Denkd87080b2006-03-31 18:32:53 +0200210 /* A miniature main loop */
211 while (bug_ctx.stopped) {
Simon Glasse1bf8242014-04-10 20:01:27 -0600212 len = cli_readline(prompt_str);
wdenk47d1a6e2002-11-03 00:01:44 +0000213
Wolfgang Denkd87080b2006-03-31 18:32:53 +0200214 flag = 0; /* assume no special flags for now */
wdenk47d1a6e2002-11-03 00:01:44 +0000215
Wolfgang Denkd87080b2006-03-31 18:32:53 +0200216 if (len > 0)
217 strcpy (lastcommand, console_buffer);
218 else if (len == 0)
219 flag |= CMD_FLAG_REPEAT;
wdenk47d1a6e2002-11-03 00:01:44 +0000220
Wolfgang Denkd87080b2006-03-31 18:32:53 +0200221 if (len == -1)
222 printf ("<INTERRUPT>\n");
223 else
Thomas Betker52715f82014-06-05 20:07:58 +0200224 rc = run_command_repeatable(lastcommand, flag);
wdenk47d1a6e2002-11-03 00:01:44 +0000225
Wolfgang Denkd87080b2006-03-31 18:32:53 +0200226 if (rc <= 0) {
227 /* invalid command or not repeatable, forget it */
228 lastcommand[0] = 0;
229 }
230 }
wdenk47d1a6e2002-11-03 00:01:44 +0000231
Wolfgang Denkd87080b2006-03-31 18:32:53 +0200232 bug_ctx.regs = NULL;
233 bug_ctx.current_bp = 0;
wdenk47d1a6e2002-11-03 00:01:44 +0000234
Wolfgang Denkd87080b2006-03-31 18:32:53 +0200235 return;
236} /* bedbug_main_loop */
Simon Glasse1bf8242014-04-10 20:01:27 -0600237
Wolfgang Denkd87080b2006-03-31 18:32:53 +0200238
239
wdenk47d1a6e2002-11-03 00:01:44 +0000240/* ======================================================================
241 * Interpreter command to continue from a breakpoint. Just clears the
242 * stopped flag in the context so that the breakpoint routine will
243 * return.
244 * ====================================================================== */
Wolfgang Denk54841ab2010-06-28 22:00:46 +0200245int do_bedbug_continue (cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
wdenk47d1a6e2002-11-03 00:01:44 +0000246{
Wolfgang Denkd87080b2006-03-31 18:32:53 +0200247 /* -------------------------------------------------- */
wdenk47d1a6e2002-11-03 00:01:44 +0000248
Wolfgang Denkd87080b2006-03-31 18:32:53 +0200249 if (!bug_ctx.stopped) {
250 printf ("Not at a breakpoint\n");
251 return 1;
252 }
wdenk47d1a6e2002-11-03 00:01:44 +0000253
Wolfgang Denkd87080b2006-03-31 18:32:53 +0200254 bug_ctx.stopped = 0;
255 return 0;
256} /* do_bedbug_continue */
257
258U_BOOT_CMD (continue, 1, 0, do_bedbug_continue,
Peter Tyser2fb26042009-01-27 18:03:12 -0600259 "continue from a breakpoint",
Wolfgang Denka89c33d2009-05-24 17:06:54 +0200260 "");
Simon Glasse1bf8242014-04-10 20:01:27 -0600261
wdenk47d1a6e2002-11-03 00:01:44 +0000262/* ======================================================================
263 * Interpreter command to continue to the next instruction, stepping into
264 * subroutines. Works by calling the find_next_addr() routine to compute
265 * the address passes control to the CPU-specific set breakpoint routine
266 * for the current breakpoint number.
267 * ====================================================================== */
Wolfgang Denk54841ab2010-06-28 22:00:46 +0200268int do_bedbug_step (cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
wdenk47d1a6e2002-11-03 00:01:44 +0000269{
Wolfgang Denkd87080b2006-03-31 18:32:53 +0200270 unsigned long addr; /* Address to stop at */
wdenk47d1a6e2002-11-03 00:01:44 +0000271
Wolfgang Denkd87080b2006-03-31 18:32:53 +0200272 /* -------------------------------------------------- */
wdenk47d1a6e2002-11-03 00:01:44 +0000273
Wolfgang Denkd87080b2006-03-31 18:32:53 +0200274 if (!bug_ctx.stopped) {
275 printf ("Not at a breakpoint\n");
276 return 1;
277 }
wdenk47d1a6e2002-11-03 00:01:44 +0000278
York Sun472d5462013-04-01 11:29:11 -0700279 if (!find_next_address((unsigned char *) &addr, false, bug_ctx.regs))
Wolfgang Denkd87080b2006-03-31 18:32:53 +0200280 return 1;
wdenk47d1a6e2002-11-03 00:01:44 +0000281
Wolfgang Denkd87080b2006-03-31 18:32:53 +0200282 if (bug_ctx.set)
283 (*bug_ctx.set) (bug_ctx.current_bp, addr);
284
285 bug_ctx.stopped = 0;
286 return 0;
287} /* do_bedbug_step */
288
289U_BOOT_CMD (step, 1, 1, do_bedbug_step,
Peter Tyser2fb26042009-01-27 18:03:12 -0600290 "single step execution.",
Wolfgang Denka89c33d2009-05-24 17:06:54 +0200291 "");
Simon Glasse1bf8242014-04-10 20:01:27 -0600292
wdenk47d1a6e2002-11-03 00:01:44 +0000293/* ======================================================================
294 * Interpreter command to continue to the next instruction, stepping over
295 * subroutines. Works by calling the find_next_addr() routine to compute
296 * the address passes control to the CPU-specific set breakpoint routine
297 * for the current breakpoint number.
298 * ====================================================================== */
Wolfgang Denk54841ab2010-06-28 22:00:46 +0200299int do_bedbug_next (cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
wdenk47d1a6e2002-11-03 00:01:44 +0000300{
Wolfgang Denkd87080b2006-03-31 18:32:53 +0200301 unsigned long addr; /* Address to stop at */
wdenk47d1a6e2002-11-03 00:01:44 +0000302
Wolfgang Denkd87080b2006-03-31 18:32:53 +0200303 /* -------------------------------------------------- */
wdenk47d1a6e2002-11-03 00:01:44 +0000304
Wolfgang Denkd87080b2006-03-31 18:32:53 +0200305 if (!bug_ctx.stopped) {
306 printf ("Not at a breakpoint\n");
307 return 1;
308 }
wdenk47d1a6e2002-11-03 00:01:44 +0000309
York Sun472d5462013-04-01 11:29:11 -0700310 if (!find_next_address((unsigned char *) &addr, true, bug_ctx.regs))
Wolfgang Denkd87080b2006-03-31 18:32:53 +0200311 return 1;
wdenk47d1a6e2002-11-03 00:01:44 +0000312
Wolfgang Denkd87080b2006-03-31 18:32:53 +0200313 if (bug_ctx.set)
314 (*bug_ctx.set) (bug_ctx.current_bp, addr);
315
316 bug_ctx.stopped = 0;
317 return 0;
318} /* do_bedbug_next */
319
320U_BOOT_CMD (next, 1, 1, do_bedbug_next,
Peter Tyser2fb26042009-01-27 18:03:12 -0600321 "single step execution, stepping over subroutines.",
Wolfgang Denka89c33d2009-05-24 17:06:54 +0200322 "");
Simon Glasse1bf8242014-04-10 20:01:27 -0600323
wdenk47d1a6e2002-11-03 00:01:44 +0000324/* ======================================================================
325 * Interpreter command to print the current stack. This assumes an EABI
326 * architecture, so it starts with GPR R1 and works back up the stack.
327 * ====================================================================== */
Wolfgang Denk54841ab2010-06-28 22:00:46 +0200328int do_bedbug_stack (cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
wdenk47d1a6e2002-11-03 00:01:44 +0000329{
Wolfgang Denkd87080b2006-03-31 18:32:53 +0200330 unsigned long sp; /* Stack pointer */
331 unsigned long func; /* LR from stack */
332 int depth; /* Stack iteration level */
333 int skip = 1; /* Flag to skip the first entry */
334 unsigned long top; /* Top of memory address */
wdenk47d1a6e2002-11-03 00:01:44 +0000335
Wolfgang Denkd87080b2006-03-31 18:32:53 +0200336 /* -------------------------------------------------- */
wdenk47d1a6e2002-11-03 00:01:44 +0000337
Wolfgang Denkd87080b2006-03-31 18:32:53 +0200338 if (!bug_ctx.stopped) {
339 printf ("Not at a breakpoint\n");
340 return 1;
341 }
wdenk47d1a6e2002-11-03 00:01:44 +0000342
Wolfgang Denkd87080b2006-03-31 18:32:53 +0200343 top = gd->bd->bi_memstart + gd->bd->bi_memsize;
344 depth = 0;
wdenk47d1a6e2002-11-03 00:01:44 +0000345
Wolfgang Denkd87080b2006-03-31 18:32:53 +0200346 printf ("Depth PC\n");
347 printf ("----- --------\n");
348 printf ("%5d %08lx\n", depth++, bug_ctx.regs->nip);
wdenk47d1a6e2002-11-03 00:01:44 +0000349
Wolfgang Denkd87080b2006-03-31 18:32:53 +0200350 sp = bug_ctx.regs->gpr[1];
351 func = *(unsigned long *) (sp + 4);
wdenk47d1a6e2002-11-03 00:01:44 +0000352
Wolfgang Denkd87080b2006-03-31 18:32:53 +0200353 while ((func < top) && (sp < top)) {
354 if (!skip)
355 printf ("%5d %08lx\n", depth++, func);
356 else
357 --skip;
wdenk47d1a6e2002-11-03 00:01:44 +0000358
Wolfgang Denkd87080b2006-03-31 18:32:53 +0200359 sp = *(unsigned long *) sp;
360 func = *(unsigned long *) (sp + 4);
361 }
362 return 0;
363} /* do_bedbug_stack */
364
365U_BOOT_CMD (where, 1, 1, do_bedbug_stack,
Peter Tyser2fb26042009-01-27 18:03:12 -0600366 "Print the running stack.",
Wolfgang Denka89c33d2009-05-24 17:06:54 +0200367 "");
Simon Glasse1bf8242014-04-10 20:01:27 -0600368
wdenk47d1a6e2002-11-03 00:01:44 +0000369/* ======================================================================
370 * Interpreter command to dump the registers. Calls the CPU-specific
371 * show registers routine.
372 * ====================================================================== */
Wolfgang Denk54841ab2010-06-28 22:00:46 +0200373int do_bedbug_rdump (cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
wdenk47d1a6e2002-11-03 00:01:44 +0000374{
Wolfgang Denkd87080b2006-03-31 18:32:53 +0200375 /* -------------------------------------------------- */
wdenk47d1a6e2002-11-03 00:01:44 +0000376
Wolfgang Denkd87080b2006-03-31 18:32:53 +0200377 if (!bug_ctx.stopped) {
378 printf ("Not at a breakpoint\n");
379 return 1;
380 }
wdenk47d1a6e2002-11-03 00:01:44 +0000381
Wolfgang Denkd87080b2006-03-31 18:32:53 +0200382 show_regs (bug_ctx.regs);
383 return 0;
384} /* do_bedbug_rdump */
385
386U_BOOT_CMD (rdump, 1, 1, do_bedbug_rdump,
Wolfgang Denka89c33d2009-05-24 17:06:54 +0200387 "Show registers.", "");
wdenk47d1a6e2002-11-03 00:01:44 +0000388/* ====================================================================== */
wdenk47d1a6e2002-11-03 00:01:44 +0000389
390
391/*
392 * Copyright (c) 2001 William L. Pitts
393 * All rights reserved.
394 *
395 * Redistribution and use in source and binary forms are freely
396 * permitted provided that the above copyright notice and this
397 * paragraph and the following disclaimer are duplicated in all
398 * such forms.
399 *
400 * This software is provided "AS IS" and without any express or
401 * implied warranties, including, without limitation, the implied
402 * warranties of merchantability and fitness for a particular
403 * purpose.
404 */