1 /* trace.c --- tracing output for the RL78 simulator.
3 Copyright (C) 2005, 2007-2012 Free Software Foundation, Inc.
4 Contributed by Red Hat, Inc.
6 This file is part of the GNU simulators.
8 This program is free software; you can redistribute it and/or modify
9 it under the terms of the GNU General Public License as published by
10 the Free Software Foundation; either version 3 of the License, or
11 (at your option) any later version.
13 This program is distributed in the hope that it will be useful,
14 but WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 GNU General Public License for more details.
18 You should have received a copy of the GNU General Public License
19 along with this program. If not, see <http://www.gnu.org/licenses/>.
28 #include <sys/types.h>
32 #include "libiberty.h"
41 sim_dis_read (bfd_vma memaddr, bfd_byte * ptr, unsigned int length,
42 struct disassemble_info *info)
44 mem_get_blk (memaddr, ptr, length);
48 /* Filter out (in place) symbols that are useless for disassembly.
49 COUNT is the number of elements in SYMBOLS.
50 Return the number of useful symbols. */
53 remove_useless_symbols (asymbol ** symbols, long count)
55 register asymbol **in_ptr = symbols, **out_ptr = symbols;
59 asymbol *sym = *in_ptr ++;
61 if (strstr (sym->name, "gcc2_compiled"))
63 if (sym->name == NULL || sym->name[0] == '\0')
65 if (sym->flags & (BSF_DEBUGGING))
67 if (bfd_is_und_section (sym->section)
68 || bfd_is_com_section (sym->section))
73 return out_ptr - symbols;
77 compare_symbols (const PTR ap, const PTR bp)
79 const asymbol *a = *(const asymbol **) ap;
80 const asymbol *b = *(const asymbol **) bp;
82 if (bfd_asymbol_value (a) > bfd_asymbol_value (b))
84 else if (bfd_asymbol_value (a) < bfd_asymbol_value (b))
89 static char opbuf[1000];
92 op_printf (char *buf, char *fmt, ...)
98 ret = vsprintf (opbuf + strlen (opbuf), fmt, ap);
103 static bfd * current_bfd = NULL;
104 static asymbol ** symtab = NULL;
105 static int symcount = 0;
106 static asection * code_section = NULL;
107 static bfd_vma code_base = 0;
108 static struct disassemble_info info;
111 sim_disasm_init (bfd *prog)
127 load_file_and_line (const char *filename, int lineno)
130 for (f = files; f; f = f->next)
131 if (strcmp (f->filename, filename) == 0)
137 const char *found_filename, *slash;
139 found_filename = filename;
142 if (stat (found_filename, &s) == 0)
144 slash = strchr (found_filename, '/');
147 found_filename = slash + 1;
150 f = (Files *) xmalloc (sizeof (Files));
153 f->filename = xstrdup (filename);
154 f->data = (char *) xmalloc (s.st_size + 2);
155 FILE *file = fopen (found_filename, "rb");
156 fread (f->data, 1, s.st_size, file);
157 f->data[s.st_size] = 0;
161 for (i = 0; i < s.st_size; i ++)
162 if (f->data[i] == '\n')
164 f->lines = (char **) xmalloc (f->nlines * sizeof (char *));
165 f->lines[0] = f->data;
167 for (i = 0; i < s.st_size; i ++)
168 if (f->data[i] == '\n')
170 f->lines[f->nlines] = f->data + i + 1;
171 while (*f->lines[f->nlines] == ' '
172 || *f->lines[f->nlines] == '\t')
173 f->lines[f->nlines] ++;
178 if (lineno < 1 || lineno > f->nlines)
180 return f->lines[lineno - 1];
184 sim_get_current_source_location (const char ** pfilename,
185 const char ** pfunctionname,
186 unsigned int * plineno)
188 static int initted = 0;
191 if (current_bfd == NULL)
200 memset (& info, 0, sizeof (info));
201 INIT_DISASSEMBLE_INFO (info, stdout, op_printf);
202 info.read_memory_func = sim_dis_read;
203 info.arch = bfd_get_arch (current_bfd);
204 info.mach = bfd_get_mach (current_bfd);
206 info.arch = bfd_arch_rl78;
208 disassemble_init_for_target (& info);
210 storage = bfd_get_symtab_upper_bound (current_bfd);
213 symtab = (asymbol **) xmalloc (storage);
214 symcount = bfd_canonicalize_symtab (current_bfd, symtab);
215 symcount = remove_useless_symbols (symtab, symcount);
216 qsort (symtab, symcount, sizeof (asymbol *), compare_symbols);
219 for (s = current_bfd->sections; s; s = s->next)
221 if (s->flags & SEC_CODE || code_section == 0)
224 code_base = bfd_section_lma (current_bfd, s);
230 *pfilename = *pfunctionname = NULL;
233 bfd_find_nearest_line
234 (current_bfd, code_section, symtab, mypc - code_base,
235 pfilename, pfunctionname, plineno);
241 sim_disasm_one (void)
243 static int last_sym = -1;
244 static const char * prev_filename = "";
245 static int prev_lineno = 0;
246 const char * filename;
247 const char * functionname;
251 int save_trace = trace;
254 if (! sim_get_current_source_location (& filename, & functionname, & lineno))
259 if (filename && functionname && lineno)
261 if (lineno != prev_lineno || strcmp (prev_filename, filename))
263 char * the_line = load_file_and_line (filename, lineno);
264 const char * slash = strrchr (filename, '/');
271 ("========================================"
272 "=====================================\n");
273 printf ("\033[37;41m %s:%d: \033[33;40m %s\033[K\033[0m\n",
274 slash, lineno, the_line);
276 prev_lineno = lineno;
277 prev_filename = filename;
282 while (min < max - 1)
286 sym = (min + max) / 2;
287 sa = bfd_asymbol_value (symtab[sym]);
288 /*printf ("checking %4d %08x %s\n",
289 sym, sa, bfd_asymbol_name (symtab[sym])); */
301 if (min != -1 && min != last_sym)
303 bestaddr = bfd_asymbol_value (symtab[min]);
304 printf ("\033[43;30m%s", bfd_asymbol_name (symtab[min]));
305 if (bestaddr != mypc)
306 printf ("+%d", mypc - bestaddr);
307 printf (":\t\t\t\033[0m\n");
311 if (strcmp (bfd_asymbol_name (symtab[min]), "abort") == 0
312 || strcmp (bfd_asymbol_name (symtab[min]), "exit") == 0)
320 #ifdef CYCLE_ACCURATE
321 printf ("\033[33m %04u %06x: ", (int)(regs.cycle_count % 10000), mypc);
323 printf ("\033[33m %08llx %06x: ", total_clocks, mypc);
326 max = print_insn_rl78 (mypc, & info);
328 for (i = 0; i < max; i ++)
329 printf ("%02x", mem_get_qi (mypc + i));
338 printf ("%-16s ", opbuf);
340 printf ("\033[0m\n");