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/*
* Copyright (C) 2016-2017 Paul Kocialkowski <contact@paulk.fr>
*
* 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 of the License, 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, see <http://www.gnu.org/licenses/>.
*/
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <pcm/pcm.h>
#include "pcm-analysis.h"
struct pcm_ops_data pcm_ops_data = {
.address = 0,
};
struct pcm_ops pcm_ops = {
.asm_write = NULL,
.disasm_write = pcm_disasm_write,
.data = (void *) &pcm_ops_data,
};
int pcm_disasm_write(void *data, unsigned int value, char *mnemonic)
{
struct pcm_ops_data *ops_data;
if (data == NULL)
return -1;
ops_data = (struct pcm_ops_data *) data;
if (mnemonic != NULL)
printf("[0x%04x] 0x%08x ; %s\n", ops_data->address, value, mnemonic);
else
printf("[0x%04x] 0x%08x\n", ops_data->address, value);
ops_data->address++;
return 0;
}
int firmware_values(char *file, unsigned int **values)
{
struct stat stat_data;
size_t size;
int fd = -1;
int rc;
if (file == NULL || values == NULL)
return -1;
rc = stat(file, &stat_data);
if (rc < 0) {
fprintf(stderr, "Invalid file: %s\n", file);
goto error;
}
size = stat_data.st_size;
*values = malloc(size);
fd = open(file, O_RDONLY, 0644);
if (fd < 0) {
fprintf(stderr, "Unable to open file: %s\n", file);
goto error;
}
rc = read(fd, *values, size);
if (rc <= 0) {
fprintf(stderr, "Unable to read file: %s\n", file);
goto error;
}
rc = size / sizeof(unsigned int);
goto complete;
error:
rc = -1;
if (*values != NULL)
free(*values);
complete:
if (fd >= 0)
close(fd);
return rc;
}
int main(int argc, char *argv[])
{
unsigned int *values = NULL;
unsigned int count;
int rc;
int i;
if (argc < 2 || argv[1] == NULL)
return 1;
rc = firmware_values(argv[1], &values);
if (rc < 0 || values == NULL)
goto error;
count = rc;
rc = pcm_ops_register(&pcm_ops);
if (rc < 0) {
fprintf(stderr, "Unable to set PCM OPS\n");
goto error;
}
i = 0;
while (count > 0) {
rc = pcm_op_disasm(&values[i], count);
if (rc < 0) {
pcm_disasm_write(pcm_ops.data, values[i], NULL);
rc = 0;
}
count -= 1 + rc;
i += 1 + rc;
}
rc = 0;
goto complete;
error:
rc = 1;
complete:
if (values != NULL)
free(values);
return rc;
}
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