1 /* trace.c --- tracing output for the RL78 simulator.
3 Copyright (C) 2005-2014 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");
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