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Print out command line arguments for pkbootimage after splitting image #1

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Print out command line arguments for pkbootimage after splitting image #1

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38 changes: 29 additions & 9 deletions spbootimg.c
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Original file line number Diff line number Diff line change
Expand Up @@ -36,15 +36,13 @@ unsigned pages(unsigned page_size, unsigned chunk_size)
return (chunk_size + page_size - 1) / page_size;
}

int write_chunk(int bootimg_fd, char *bootimg_fn, unsigned size, char *output_type, unsigned offset)
int write_chunk(int bootimg_fd, char *output_fn, unsigned size, unsigned offset)
{
char *msg;
char output_fn[MAXNAMELEN];
char *data;
int fd;
unsigned count;

sprintf(output_fn, "%s-%s", bootimg_fn, output_type);
data = (char *)malloc(size);
if (data == 0) {
msg = "Unable to allocate memory";
Expand Down Expand Up @@ -75,10 +73,9 @@ int write_chunk(int bootimg_fd, char *bootimg_fn, unsigned size, char *output_ty

fail_chunk:
close(bootimg_fd);
fprintf(stderr,"error: %s %s %s %s\n",
fprintf(stderr,"error: %s %s %s\n",
msg,
bootimg_fn,
output_type,
output_fn,
strerror(errno));
exit(1);

Expand Down Expand Up @@ -239,22 +236,45 @@ int main(int argc, char **argv)
goto fail;
}
offset = hdr.page_size;
write_chunk(bootimg_fd, bootimg_fn, hdr.kernel_size, "kernel", offset);
write_chunk(bootimg_fd, kernel_fn, hdr.kernel_size, offset);

/* ramdisk */
if(hdr.ramdisk_size == 0) {
msg1 = "ramdisk size is zero";
goto fail;
}
offset += pages(hdr.page_size, hdr.kernel_size) * hdr.page_size;
write_chunk(bootimg_fd, bootimg_fn, hdr.ramdisk_size, "first-ramdisk", offset);
sprintf(ramdisk_fn, "%s-%s", bootimg_fn, "first-ramdisk");
write_chunk(bootimg_fd, ramdisk_fn, hdr.ramdisk_size, offset);

/* ramdisk 2 */
if(hdr.second_size > 0) {
offset += pages(hdr.page_size, hdr.ramdisk_size) * hdr.page_size;
write_chunk(bootimg_fd, bootimg_fn, hdr.second_size, "second-ramdisk", offset);
sprintf(second_fn, "%s-%s", bootimg_fn, "first-ramdisk");
write_chunk(bootimg_fd, second_fn, hdr.second_size, offset);
}

fprintf(stderr, "To repackage the ramdisk, run pkbootimg like this:\n");
fprintf(stdout, "pkbootimg --kernel %s \\\n", kernel_fn);
fprintf(stdout, " --kernel-addr 0x%X \\\n", hdr.kernel_addr);
fprintf(stdout, " --ramdisk %s \\\n", ramdisk_fn);
fprintf(stdout, " --ramdisk-addr 0x%X \\\n", hdr.ramdisk_addr);
if(hdr.second_size > 0) {
fprintf(stdout, " --second %s \\\n", second_fn);
}
fprintf(stdout, " --second-addr 0x%X \\\n", hdr.second_addr);
fprintf(stdout, " --tags-addr 0x%X \\\n", hdr.tags_addr);
fprintf(stdout, " --pagesize %d \\\n", hdr.page_size);
if(strlen(hdr.name) > 0) {
fprintf(stdout, " --board %s \\\n", hdr.name);
}
if(strlen(hdr.cmdline) > 0) {
fprintf(stdout, " --cmdline \"%s\" \\\n", hdr.cmdline);
}
fprintf(stdout, " --output newboot.img\n");

fprintf(stderr, "\nSplit successful\n");

return 0;

fail:
Expand Down