powerpc: Update in-kernel dtc and libfdt to version 1.2.0

Some time ago, a copies of the upstream dtc and libfdt sources were
included in the kernel tree to avoid having these as external
dependencies for building the kernel.  Since then development on the
upstream dtc and libfdt has continued.  This updates the in-kernel
versions to match the recently released upstream dtc version 1.2.0.
This includes a number of bugfixes, many cleanups and a few new
features.

Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>
This commit is contained in:
David Gibson
2008-08-07 12:24:17 +10:00
committed by Paul Mackerras
parent 0ec27c049d
commit ed95d7450d
28 changed files with 1617 additions and 1431 deletions

View File

@ -20,86 +20,97 @@
#include "dtc.h"
#include "srcpos.h"
/*
* Record the complete unique set of opened file names.
* Primarily used to cache source position file names.
*/
#define MAX_N_FILE_NAMES (100)
const char *file_names[MAX_N_FILE_NAMES];
static int n_file_names = 0;
/*
* Like yylineno, this is the current open file pos.
*/
int srcpos_filenum = -1;
struct dtc_file *srcpos_file;
FILE *dtc_open_file(const char *fname)
static int dtc_open_one(struct dtc_file *file,
const char *search,
const char *fname)
{
FILE *f;
char *fullname;
if (lookup_file_name(fname, 1) < 0)
die("Too many files opened\n");
if (search) {
fullname = xmalloc(strlen(search) + strlen(fname) + 2);
if (streq(fname, "-"))
f = stdin;
else
f = fopen(fname, "r");
if (! f)
die("Couldn't open \"%s\": %s\n", fname, strerror(errno));
return f;
}
/*
* Locate and optionally add filename fname in the file_names[] array.
*
* If the filename is currently not in the array and the boolean
* add_it is non-zero, an attempt to add the filename will be made.
*
* Returns;
* Index [0..MAX_N_FILE_NAMES) where the filename is kept
* -1 if the name can not be recorded
*/
int lookup_file_name(const char *fname, int add_it)
{
int i;
for (i = 0; i < n_file_names; i++) {
if (strcmp(file_names[i], fname) == 0)
return i;
strcpy(fullname, search);
strcat(fullname, "/");
strcat(fullname, fname);
} else {
fullname = strdup(fname);
}
if (add_it) {
if (n_file_names < MAX_N_FILE_NAMES) {
file_names[n_file_names] = strdup(fname);
return n_file_names++;
}
file->file = fopen(fullname, "r");
if (!file->file) {
free(fullname);
return 0;
}
return -1;
file->name = fullname;
return 1;
}
const char *srcpos_filename_for_num(int filenum)
struct dtc_file *dtc_open_file(const char *fname,
const struct search_path *search)
{
if (0 <= filenum && filenum < n_file_names) {
return file_names[filenum];
static const struct search_path default_search = { NULL, NULL, NULL };
struct dtc_file *file;
const char *slash;
file = xmalloc(sizeof(struct dtc_file));
slash = strrchr(fname, '/');
if (slash) {
char *dir = xmalloc(slash - fname + 1);
memcpy(dir, fname, slash - fname);
dir[slash - fname] = 0;
file->dir = dir;
} else {
file->dir = NULL;
}
return 0;
if (streq(fname, "-")) {
file->name = "stdin";
file->file = stdin;
return file;
}
if (fname[0] == '/') {
file->file = fopen(fname, "r");
if (!file->file)
goto fail;
file->name = strdup(fname);
return file;
}
if (!search)
search = &default_search;
while (search) {
if (dtc_open_one(file, search->dir, fname))
return file;
if (errno != ENOENT)
goto fail;
search = search->next;
}
fail:
die("Couldn't open \"%s\": %s\n", fname, strerror(errno));
}
const char *srcpos_get_filename(void)
void dtc_close_file(struct dtc_file *file)
{
return srcpos_filename_for_num(srcpos_filenum);
if (fclose(file->file))
die("Error closing \"%s\": %s\n", file->name, strerror(errno));
free(file->dir);
free(file);
}