Commit | Line | Data |
---|---|---|
2ebecbb1 DC |
1 | /* od-avrelf.c -- dump information about an AVR elf object file. |
2 | Copyright (C) 2011-2014 Free Software Foundation, Inc. | |
3 | Written by Senthil Kumar Selvaraj, Atmel. | |
4 | ||
5 | This file is part of GNU Binutils. | |
6 | ||
7 | This program is free software; you can redistribute it and/or modify | |
8 | it under the terms of the GNU General Public License as published by | |
9 | the Free Software Foundation; either version 3, or (at your option) | |
10 | any later version. | |
11 | ||
12 | This program is distributed in the hope that it will be useful, | |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | GNU General Public License for more details. | |
16 | ||
17 | You should have received a copy of the GNU General Public License | |
18 | along with this program; if not, write to the Free Software | |
19 | Foundation, 51 Franklin Street - Fifth Floor, Boston, | |
20 | MA 02110-1301, USA. */ | |
21 | ||
22 | #include "sysdep.h" | |
23 | #include <stddef.h> | |
24 | #include <time.h> | |
25 | #include <stdint.h> | |
26 | #include "safe-ctype.h" | |
27 | #include "bfd.h" | |
28 | #include "objdump.h" | |
29 | #include "bucomm.h" | |
30 | #include "bfdlink.h" | |
31 | #include "bfd.h" | |
32 | #include "elf/external.h" | |
33 | #include "elf/internal.h" | |
34 | ||
35 | /* Index of the options in the options[] array. */ | |
36 | #define OPT_MEMUSAGE 0 | |
37 | ||
38 | /* List of actions. */ | |
39 | static struct objdump_private_option options[] = | |
40 | { | |
41 | { "mem-usage", 0 }, | |
42 | { NULL, 0 } | |
43 | }; | |
44 | ||
45 | /* Display help. */ | |
46 | ||
47 | static void | |
48 | elf32_avr_help (FILE *stream) | |
49 | { | |
50 | fprintf (stream, _("\ | |
51 | For AVR ELF files:\n\ | |
52 | mem-usage Display memory usage\n\ | |
53 | ")); | |
54 | } | |
55 | ||
56 | typedef struct tagDeviceInfo | |
57 | { | |
58 | uint32_t flash_start; | |
59 | uint32_t flash_size; | |
60 | uint32_t ram_start; | |
61 | uint32_t ram_size; | |
62 | uint32_t eeprom_start; | |
63 | uint32_t eeprom_size; | |
64 | char * name; | |
65 | } deviceinfo; | |
66 | ||
67 | ||
68 | /* Return TRUE if ABFD is handled. */ | |
69 | ||
70 | static int | |
71 | elf32_avr_filter (bfd *abfd) | |
72 | { | |
73 | return bfd_get_flavour (abfd) == bfd_target_elf_flavour; | |
74 | } | |
75 | ||
76 | static char* | |
77 | elf32_avr_get_note_section_contents (bfd *abfd, bfd_size_type *size) | |
78 | { | |
79 | asection *section; | |
80 | ||
81 | if ((section = bfd_get_section_by_name (abfd, ".note.gnu.avr.deviceinfo")) == NULL) | |
82 | return NULL; | |
83 | ||
84 | *size = bfd_get_section_size (section); | |
85 | char *contents = (char *) xmalloc (*size); | |
86 | bfd_get_section_contents (abfd, section, contents, 0, *size); | |
87 | ||
88 | return contents; | |
89 | } | |
90 | ||
91 | static char* elf32_avr_get_note_desc (bfd *abfd, char *contents, | |
92 | bfd_size_type size) | |
93 | { | |
94 | Elf_External_Note *xnp = (Elf_External_Note *) contents; | |
95 | Elf_Internal_Note in; | |
96 | ||
97 | if (offsetof (Elf_External_Note, name) > size) | |
98 | return NULL; | |
99 | ||
100 | in.type = bfd_get_32 (abfd, xnp->type); | |
101 | in.namesz = bfd_get_32 (abfd, xnp->namesz); | |
102 | in.namedata = xnp->name; | |
103 | if (in.namesz > contents - in.namedata + size) | |
104 | return NULL; | |
105 | ||
106 | in.descsz = bfd_get_32 (abfd, xnp->descsz); | |
107 | in.descdata = in.namedata + align_power (in.namesz, 2); | |
108 | if (in.descsz != 0 | |
109 | && (in.descdata >= contents + size | |
110 | || in.descsz > contents - in.descdata + size)) | |
111 | return NULL; | |
112 | ||
113 | if (strcmp (in.namedata, "AVR") != 0) | |
114 | return NULL; | |
115 | ||
116 | return in.descdata; | |
117 | } | |
118 | ||
119 | static void | |
120 | elf32_avr_get_device_info (bfd *abfd, char *description, | |
121 | deviceinfo *device) | |
122 | { | |
123 | if (description == NULL) | |
124 | return; | |
125 | ||
126 | const bfd_size_type memory_sizes = 6; | |
127 | ||
128 | memcpy (device, description, memory_sizes * sizeof(uint32_t)); | |
129 | device->name = NULL; | |
130 | ||
131 | uint32_t *stroffset_table = ((uint32_t *) description) + memory_sizes; | |
132 | bfd_size_type stroffset_table_size = bfd_get_32 (abfd, stroffset_table); | |
133 | char *str_table = ((char *) stroffset_table) + stroffset_table_size; | |
134 | ||
135 | /* If the only content is the size itself, there's nothing in the table */ | |
136 | if (stroffset_table_size == 4) | |
137 | return; | |
138 | ||
139 | /* First entry is the device name index. */ | |
140 | uint32_t device_name_index = bfd_get_32 (abfd, stroffset_table + 1); | |
141 | ||
142 | device->name = str_table + device_name_index; | |
143 | } | |
144 | ||
145 | static void | |
146 | elf32_avr_get_memory_usage (bfd *abfd, | |
147 | bfd_size_type *text_usage, | |
148 | bfd_size_type *data_usage, | |
149 | bfd_size_type *eeprom_usage) | |
150 | { | |
151 | ||
152 | bfd_size_type avr_datasize = 0; | |
153 | bfd_size_type avr_textsize = 0; | |
154 | bfd_size_type avr_bsssize = 0; | |
155 | bfd_size_type bootloadersize = 0; | |
156 | bfd_size_type noinitsize = 0; | |
157 | bfd_size_type eepromsize = 0; | |
158 | asection *section; | |
159 | ||
160 | if ((section = bfd_get_section_by_name (abfd, ".data")) != NULL) | |
161 | avr_datasize = bfd_section_size (abfd, section); | |
162 | if ((section = bfd_get_section_by_name (abfd, ".text")) != NULL) | |
163 | avr_textsize = bfd_section_size (abfd, section); | |
164 | if ((section = bfd_get_section_by_name (abfd, ".bss")) != NULL) | |
165 | avr_bsssize = bfd_section_size (abfd, section); | |
166 | if ((section = bfd_get_section_by_name (abfd, ".bootloader")) != NULL) | |
167 | bootloadersize = bfd_section_size (abfd, section); | |
168 | if ((section = bfd_get_section_by_name (abfd, ".noinit")) != NULL) | |
169 | noinitsize = bfd_section_size (abfd, section); | |
170 | if ((section = bfd_get_section_by_name (abfd, ".eeprom")) != NULL) | |
171 | eepromsize = bfd_section_size (abfd, section); | |
172 | ||
173 | *text_usage = avr_textsize + avr_datasize + bootloadersize; | |
174 | *data_usage = avr_datasize + avr_bsssize + noinitsize; | |
175 | *eeprom_usage = eepromsize; | |
176 | } | |
177 | ||
178 | static void | |
179 | elf32_avr_dump_mem_usage (bfd *abfd) | |
180 | { | |
181 | char *description = NULL; | |
182 | bfd_size_type note_section_size = 0; | |
183 | ||
184 | deviceinfo device = {0}; | |
185 | device.name = "Unknown"; | |
186 | ||
187 | bfd_size_type data_usage = 0; | |
188 | bfd_size_type text_usage = 0; | |
189 | bfd_size_type eeprom_usage = 0; | |
190 | ||
191 | char *contents = elf32_avr_get_note_section_contents (abfd, | |
192 | ¬e_section_size); | |
193 | ||
194 | if (contents != NULL) | |
195 | { | |
196 | description = elf32_avr_get_note_desc (abfd, contents, note_section_size); | |
197 | elf32_avr_get_device_info (abfd, description, &device); | |
198 | } | |
199 | ||
200 | elf32_avr_get_memory_usage (abfd, &text_usage, &data_usage, | |
201 | &eeprom_usage); | |
202 | ||
203 | printf ("AVR Memory Usage\n" | |
204 | "----------------\n" | |
205 | "Device: %s\n\n", device.name); | |
206 | ||
207 | /* Text size */ | |
208 | printf ("Program:%8ld bytes", text_usage); | |
209 | if (device.flash_size > 0) | |
210 | printf (" (%2.1f%% Full)", ((float) text_usage / device.flash_size) * 100); | |
211 | ||
212 | printf ("\n(.text + .data + .bootloader)\n\n"); | |
213 | ||
214 | /* Data size */ | |
215 | printf ("Data: %8ld bytes", data_usage); | |
216 | if (device.ram_size > 0) | |
217 | printf (" (%2.1f%% Full)", ((float) data_usage / device.ram_size) * 100); | |
218 | ||
219 | printf ("\n(.data + .bss + .noinit)\n\n"); | |
220 | ||
221 | /* EEPROM size */ | |
222 | if (eeprom_usage > 0) | |
223 | { | |
224 | printf ("EEPROM: %8ld bytes", eeprom_usage); | |
225 | if (device.eeprom_size > 0) | |
226 | printf (" (%2.1f%% Full)", ((float) eeprom_usage / device.eeprom_size) * 100); | |
227 | ||
228 | printf ("\n(.eeprom)\n\n"); | |
229 | } | |
230 | ||
231 | if (contents != NULL) | |
232 | free (contents); | |
233 | ||
234 | } | |
235 | ||
236 | static void | |
237 | elf32_avr_dump (bfd *abfd) | |
238 | { | |
239 | if (options[OPT_MEMUSAGE].selected) | |
240 | elf32_avr_dump_mem_usage (abfd); | |
241 | } | |
242 | ||
243 | const struct objdump_private_desc objdump_private_desc_elf32_avr = | |
244 | { | |
245 | elf32_avr_help, | |
246 | elf32_avr_filter, | |
247 | elf32_avr_dump, | |
248 | options | |
249 | }; |