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| -rw-r--r-- | binutils/od-elf32_avr.c | 249 |
1 files changed, 249 insertions, 0 deletions
diff --git a/binutils/od-elf32_avr.c b/binutils/od-elf32_avr.c new file mode 100644 index 0000000..7a0a212 --- /dev/null +++ b/binutils/od-elf32_avr.c @@ -0,0 +1,249 @@ +/* od-avrelf.c -- dump information about an AVR elf object file. + Copyright (C) 2011-2014 Free Software Foundation, Inc. + Written by Senthil Kumar Selvaraj, Atmel. + + This file is part of GNU Binutils. + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 3, or (at your option) + any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software + Foundation, 51 Franklin Street - Fifth Floor, Boston, + MA 02110-1301, USA. */ + +#include "sysdep.h" +#include <stddef.h> +#include <time.h> +#include <stdint.h> +#include "safe-ctype.h" +#include "bfd.h" +#include "objdump.h" +#include "bucomm.h" +#include "bfdlink.h" +#include "bfd.h" +#include "elf/external.h" +#include "elf/internal.h" + +/* Index of the options in the options[] array. */ +#define OPT_MEMUSAGE 0 + +/* List of actions. */ +static struct objdump_private_option options[] = + { + { "mem-usage", 0 }, + { NULL, 0 } + }; + +/* Display help. */ + +static void +elf32_avr_help (FILE *stream) +{ + fprintf (stream, _("\ +For AVR ELF files:\n\ + mem-usage Display memory usage\n\ +")); +} + +typedef struct tagDeviceInfo +{ + uint32_t flash_start; + uint32_t flash_size; + uint32_t ram_start; + uint32_t ram_size; + uint32_t eeprom_start; + uint32_t eeprom_size; + char * name; +} deviceinfo; + + +/* Return TRUE if ABFD is handled. */ + +static int +elf32_avr_filter (bfd *abfd) +{ + return bfd_get_flavour (abfd) == bfd_target_elf_flavour; +} + +static char* +elf32_avr_get_note_section_contents (bfd *abfd, bfd_size_type *size) +{ + asection *section; + + if ((section = bfd_get_section_by_name (abfd, ".note.gnu.avr.deviceinfo")) == NULL) + return NULL; + + *size = bfd_get_section_size (section); + char *contents = (char *) xmalloc (*size); + bfd_get_section_contents (abfd, section, contents, 0, *size); + + return contents; +} + +static char* elf32_avr_get_note_desc (bfd *abfd, char *contents, + bfd_size_type size) +{ + Elf_External_Note *xnp = (Elf_External_Note *) contents; + Elf_Internal_Note in; + + if (offsetof (Elf_External_Note, name) > size) + return NULL; + + in.type = bfd_get_32 (abfd, xnp->type); + in.namesz = bfd_get_32 (abfd, xnp->namesz); + in.namedata = xnp->name; + if (in.namesz > contents - in.namedata + size) + return NULL; + + in.descsz = bfd_get_32 (abfd, xnp->descsz); + in.descdata = in.namedata + align_power (in.namesz, 2); + if (in.descsz != 0 + && (in.descdata >= contents + size + || in.descsz > contents - in.descdata + size)) + return NULL; + + if (strcmp (in.namedata, "AVR") != 0) + return NULL; + + return in.descdata; +} + +static void +elf32_avr_get_device_info (bfd *abfd, char *description, + deviceinfo *device) +{ + if (description == NULL) + return; + + const bfd_size_type memory_sizes = 6; + + memcpy (device, description, memory_sizes * sizeof(uint32_t)); + device->name = NULL; + + uint32_t *stroffset_table = ((uint32_t *) description) + memory_sizes; + bfd_size_type stroffset_table_size = bfd_get_32 (abfd, stroffset_table); + char *str_table = ((char *) stroffset_table) + stroffset_table_size; + + /* If the only content is the size itself, there's nothing in the table */ + if (stroffset_table_size == 4) + return; + + /* First entry is the device name index. */ + uint32_t device_name_index = bfd_get_32 (abfd, stroffset_table + 1); + + device->name = str_table + device_name_index; +} + +static void +elf32_avr_get_memory_usage (bfd *abfd, + bfd_size_type *text_usage, + bfd_size_type *data_usage, + bfd_size_type *eeprom_usage) +{ + + bfd_size_type avr_datasize = 0; + bfd_size_type avr_textsize = 0; + bfd_size_type avr_bsssize = 0; + bfd_size_type bootloadersize = 0; + bfd_size_type noinitsize = 0; + bfd_size_type eepromsize = 0; + asection *section; + + if ((section = bfd_get_section_by_name (abfd, ".data")) != NULL) + avr_datasize = bfd_section_size (abfd, section); + if ((section = bfd_get_section_by_name (abfd, ".text")) != NULL) + avr_textsize = bfd_section_size (abfd, section); + if ((section = bfd_get_section_by_name (abfd, ".bss")) != NULL) + avr_bsssize = bfd_section_size (abfd, section); + if ((section = bfd_get_section_by_name (abfd, ".bootloader")) != NULL) + bootloadersize = bfd_section_size (abfd, section); + if ((section = bfd_get_section_by_name (abfd, ".noinit")) != NULL) + noinitsize = bfd_section_size (abfd, section); + if ((section = bfd_get_section_by_name (abfd, ".eeprom")) != NULL) + eepromsize = bfd_section_size (abfd, section); + + *text_usage = avr_textsize + avr_datasize + bootloadersize; + *data_usage = avr_datasize + avr_bsssize + noinitsize; + *eeprom_usage = eepromsize; +} + +static void +elf32_avr_dump_mem_usage (bfd *abfd) +{ + char *description = NULL; + bfd_size_type note_section_size = 0; + + deviceinfo device = {0}; + device.name = "Unknown"; + + bfd_size_type data_usage = 0; + bfd_size_type text_usage = 0; + bfd_size_type eeprom_usage = 0; + + char *contents = elf32_avr_get_note_section_contents (abfd, + ¬e_section_size); + + if (contents != NULL) + { + description = elf32_avr_get_note_desc (abfd, contents, note_section_size); + elf32_avr_get_device_info (abfd, description, &device); + } + + elf32_avr_get_memory_usage (abfd, &text_usage, &data_usage, + &eeprom_usage); + + printf ("AVR Memory Usage\n" + "----------------\n" + "Device: %s\n\n", device.name); + + /* Text size */ + printf ("Program:%8ld bytes", text_usage); + if (device.flash_size > 0) + printf (" (%2.1f%% Full)", ((float) text_usage / device.flash_size) * 100); + + printf ("\n(.text + .data + .bootloader)\n\n"); + + /* Data size */ + printf ("Data: %8ld bytes", data_usage); + if (device.ram_size > 0) + printf (" (%2.1f%% Full)", ((float) data_usage / device.ram_size) * 100); + + printf ("\n(.data + .bss + .noinit)\n\n"); + + /* EEPROM size */ + if (eeprom_usage > 0) + { + printf ("EEPROM: %8ld bytes", eeprom_usage); + if (device.eeprom_size > 0) + printf (" (%2.1f%% Full)", ((float) eeprom_usage / device.eeprom_size) * 100); + + printf ("\n(.eeprom)\n\n"); + } + + if (contents != NULL) + free (contents); + +} + +static void +elf32_avr_dump (bfd *abfd) +{ + if (options[OPT_MEMUSAGE].selected) + elf32_avr_dump_mem_usage (abfd); +} + +const struct objdump_private_desc objdump_private_desc_elf32_avr = + { + elf32_avr_help, + elf32_avr_filter, + elf32_avr_dump, + options + }; |