1 /* trace.c --- tracing output for the RL78 simulator.
3 Copyright (C) 2005-2022 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/>.
22 /* This must come before any other includes. */
29 #include <sys/types.h>
33 #include "libiberty.h"
42 static disassembler_ftype rl78_disasm_fn = NULL;
45 sim_dis_read (bfd_vma memaddr, bfd_byte * ptr, unsigned int length,
46 struct disassemble_info *info)
48 mem_get_blk (memaddr, ptr, length);
52 /* Filter out (in place) symbols that are useless for disassembly.
53 COUNT is the number of elements in SYMBOLS.
54 Return the number of useful symbols. */
57 remove_useless_symbols (asymbol ** symbols, long count)
59 register asymbol **in_ptr = symbols, **out_ptr = symbols;
63 asymbol *sym = *in_ptr ++;
65 if (strstr (sym->name, "gcc2_compiled"))
67 if (sym->name == NULL || sym->name[0] == '\0')
69 if (sym->flags & (BSF_DEBUGGING))
71 if (bfd_is_und_section (sym->section)
72 || bfd_is_com_section (sym->section))
77 return out_ptr - symbols;
81 compare_symbols (const void *ap, const void *bp)
83 const asymbol *a = *(const asymbol **) ap;
84 const asymbol *b = *(const asymbol **) bp;
86 if (bfd_asymbol_value (a) > bfd_asymbol_value (b))
88 else if (bfd_asymbol_value (a) < bfd_asymbol_value (b))
93 static char opbuf[1000];
95 static int ATTRIBUTE_PRINTF (2, 3)
96 op_printf (char *buf, char *fmt, ...)
102 ret = vsprintf (opbuf + strlen (opbuf), fmt, ap);
107 static int ATTRIBUTE_PRINTF (3, 4)
108 op_styled_printf (char *buf, enum disassembler_style style, char *fmt, ...)
114 ret = vsprintf (opbuf + strlen (opbuf), fmt, ap);
119 static bfd * current_bfd = NULL;
120 static asymbol ** symtab = NULL;
121 static int symcount = 0;
122 static asection * code_section = NULL;
123 static bfd_vma code_base = 0;
124 static struct disassemble_info info;
127 sim_disasm_init (bfd *prog)
130 rl78_disasm_fn = NULL;
144 load_file_and_line (const char *filename, int lineno)
147 for (f = files; f; f = f->next)
148 if (strcmp (f->filename, filename) == 0)
154 const char *found_filename, *slash;
158 found_filename = filename;
161 if (stat (found_filename, &s) == 0)
163 slash = strchr (found_filename, '/');
166 found_filename = slash + 1;
169 f = (Files *) xmalloc (sizeof (Files));
172 f->filename = xstrdup (filename);
173 f->data = (char *) xmalloc (s.st_size + 2);
174 file = fopen (found_filename, "rb");
175 ret = fread (f->data, 1, s.st_size, file);
180 for (i = 0; i < s.st_size; i ++)
181 if (f->data[i] == '\n')
183 f->lines = (char **) xmalloc (f->nlines * sizeof (char *));
184 f->lines[0] = f->data;
186 for (i = 0; i < s.st_size; i ++)
187 if (f->data[i] == '\n')
189 f->lines[f->nlines] = f->data + i + 1;
190 while (*f->lines[f->nlines] == ' '
191 || *f->lines[f->nlines] == '\t')
192 f->lines[f->nlines] ++;
197 if (lineno < 1 || lineno > f->nlines)
199 return f->lines[lineno - 1];
203 sim_get_current_source_location (const char ** pfilename,
204 const char ** pfunctionname,
205 unsigned int * plineno)
207 static int initted = 0;
210 if (current_bfd == NULL)
219 memset (& info, 0, sizeof (info));
220 INIT_DISASSEMBLE_INFO (info, stdout, op_printf, op_styled_printf);
221 info.read_memory_func = sim_dis_read;
222 info.arch = bfd_get_arch (current_bfd);
223 info.mach = bfd_get_mach (current_bfd);
225 info.arch = bfd_arch_rl78;
227 disassemble_init_for_target (& info);
229 storage = bfd_get_symtab_upper_bound (current_bfd);
232 symtab = (asymbol **) xmalloc (storage);
233 symcount = bfd_canonicalize_symtab (current_bfd, symtab);
234 symcount = remove_useless_symbols (symtab, symcount);
235 qsort (symtab, symcount, sizeof (asymbol *), compare_symbols);
238 for (s = current_bfd->sections; s; s = s->next)
240 if (s->flags & SEC_CODE || code_section == 0)
243 code_base = bfd_section_lma (s);
249 *pfilename = *pfunctionname = NULL;
252 bfd_find_nearest_line
253 (current_bfd, code_section, symtab, mypc - code_base,
254 pfilename, pfunctionname, plineno);
260 sim_disasm_one (void)
262 static int last_sym = -1;
263 static const char * prev_filename = "";
264 static int prev_lineno = 0;
265 const char * filename;
266 const char * functionname;
270 int save_trace = trace;
273 if (! sim_get_current_source_location (& filename, & functionname, & lineno))
281 rl78_disasm_fn = print_insn_rl78_g10;
282 else if (g14_multiply)
283 rl78_disasm_fn = print_insn_rl78_g14;
284 else if (g13_multiply)
285 rl78_disasm_fn = print_insn_rl78_g13;
287 rl78_disasm_fn = print_insn_rl78;
290 if (filename && functionname && lineno)
292 if (lineno != prev_lineno || strcmp (prev_filename, filename))
294 char * the_line = load_file_and_line (filename, lineno);
295 const char * slash = strrchr (filename, '/');
302 ("========================================"
303 "=====================================\n");
304 printf ("\033[37;41m %s:%d: \033[33;40m %s\033[K\033[0m\n",
305 slash, lineno, the_line);
307 prev_lineno = lineno;
308 prev_filename = filename;
313 while (min < max - 1)
317 sym = (min + max) / 2;
318 sa = bfd_asymbol_value (symtab[sym]);
319 /*printf ("checking %4d %08x %s\n",
320 sym, sa, bfd_asymbol_name (symtab[sym])); */
332 if (min != -1 && min != last_sym)
334 bestaddr = bfd_asymbol_value (symtab[min]);
335 printf ("\033[43;30m%s", bfd_asymbol_name (symtab[min]));
336 if (bestaddr != mypc)
337 printf ("+%d", mypc - bestaddr);
338 printf (":\t\t\t\033[0m\n");
342 if (strcmp (bfd_asymbol_name (symtab[min]), "abort") == 0
343 || strcmp (bfd_asymbol_name (symtab[min]), "exit") == 0)
351 #ifdef CYCLE_ACCURATE
352 printf ("\033[33m %04u %06x: ", (int)(regs.cycle_count % 10000), mypc);
354 printf ("\033[33m %08llx %06x: ", total_clocks, mypc);
357 max = rl78_disasm_fn (mypc, & info);
359 for (i = 0; i < max; i ++)
360 printf ("%02x", mem_get_qi (mypc + i));
369 printf ("%-16s ", opbuf);
371 printf ("\033[0m\n");