mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-09-12 05:48:40 +00:00
![Rob Herring](/assets/img/avatar_default.png)
This adds the following commits from upstream: 183df9e9c2b9 gitignore: Ignore the swp files 0db6d09584e1 gitignore: Add cscope files 307afa1a7be8 Update Jon Loeliger's email ca16a723fa9d fdtdump: Fix gcc11 warning 64990a272e8f srcpos: increase MAX_SRCFILE_DEPTH 163f0469bf2e dtc: Allow overlays to have .dtbo extension 3b01518e688d Set last_comp_version correctly in new dtb and fix potential version issues in fdt_open_into f7e5737f26aa tests: Fix overlay_overlay_nosugar test case 7cd5d5fe43d5 libfdt: Tweak description of assume-aligned load helpers a7c404099349 libfdt: Internally perform potentially unaligned loads bab85e48a6f4 meson: increase default timeout for tests f8b46098824d meson: do not assume python is installed, skip tests 30a56bce4f0b meson: fix -Wall warning 5e735860c478 libfdt: Check for 8-byte address alignment in fdt_ro_probe_() 67849a327927 build-sys: add meson build 05874d08212d pylibfdt: allow build out of tree 3bc3a6b9fe0c dtc: Fix signedness comparisons warnings: Wrap (-1) e1147b159e92 dtc: Fix signedness comparisons warnings: change types 04cf1fdc0fcf convert-dtsv0: Fix signedness comparisons warning b30013edb878 libfdt: Fix kernel-doc comments Signed-off-by: Rob Herring <robh@kernel.org>
406 lines
8.6 KiB
C
406 lines
8.6 KiB
C
// SPDX-License-Identifier: GPL-2.0-or-later
|
|
/*
|
|
* Copyright 2007 Jon Loeliger, Freescale Semiconductor, Inc.
|
|
*/
|
|
|
|
#define _GNU_SOURCE
|
|
|
|
#include <stdio.h>
|
|
|
|
#include "dtc.h"
|
|
#include "srcpos.h"
|
|
|
|
/* A node in our list of directories to search for source/include files */
|
|
struct search_path {
|
|
struct search_path *next; /* next node in list, NULL for end */
|
|
const char *dirname; /* name of directory to search */
|
|
};
|
|
|
|
/* This is the list of directories that we search for source files */
|
|
static struct search_path *search_path_head, **search_path_tail;
|
|
|
|
/* Detect infinite include recursion. */
|
|
#define MAX_SRCFILE_DEPTH (200)
|
|
static int srcfile_depth; /* = 0 */
|
|
|
|
static char *get_dirname(const char *path)
|
|
{
|
|
const char *slash = strrchr(path, '/');
|
|
|
|
if (slash) {
|
|
int len = slash - path;
|
|
char *dir = xmalloc(len + 1);
|
|
|
|
memcpy(dir, path, len);
|
|
dir[len] = '\0';
|
|
return dir;
|
|
}
|
|
return NULL;
|
|
}
|
|
|
|
FILE *depfile; /* = NULL */
|
|
struct srcfile_state *current_srcfile; /* = NULL */
|
|
static char *initial_path; /* = NULL */
|
|
static int initial_pathlen; /* = 0 */
|
|
static bool initial_cpp = true;
|
|
|
|
static void set_initial_path(char *fname)
|
|
{
|
|
int i, len = strlen(fname);
|
|
|
|
xasprintf(&initial_path, "%s", fname);
|
|
initial_pathlen = 0;
|
|
for (i = 0; i != len; i++)
|
|
if (initial_path[i] == '/')
|
|
initial_pathlen++;
|
|
}
|
|
|
|
static char *shorten_to_initial_path(char *fname)
|
|
{
|
|
char *p1, *p2, *prevslash1 = NULL;
|
|
int slashes = 0;
|
|
|
|
for (p1 = fname, p2 = initial_path; *p1 && *p2; p1++, p2++) {
|
|
if (*p1 != *p2)
|
|
break;
|
|
if (*p1 == '/') {
|
|
prevslash1 = p1;
|
|
slashes++;
|
|
}
|
|
}
|
|
p1 = prevslash1 + 1;
|
|
if (prevslash1) {
|
|
int diff = initial_pathlen - slashes, i, j;
|
|
int restlen = strlen(fname) - (p1 - fname);
|
|
char *res;
|
|
|
|
res = xmalloc((3 * diff) + restlen + 1);
|
|
for (i = 0, j = 0; i != diff; i++) {
|
|
res[j++] = '.';
|
|
res[j++] = '.';
|
|
res[j++] = '/';
|
|
}
|
|
strcpy(res + j, p1);
|
|
return res;
|
|
}
|
|
return NULL;
|
|
}
|
|
|
|
/**
|
|
* Try to open a file in a given directory.
|
|
*
|
|
* If the filename is an absolute path, then dirname is ignored. If it is a
|
|
* relative path, then we look in that directory for the file.
|
|
*
|
|
* @param dirname Directory to look in, or NULL for none
|
|
* @param fname Filename to look for
|
|
* @param fp Set to NULL if file did not open
|
|
* @return allocated filename on success (caller must free), NULL on failure
|
|
*/
|
|
static char *try_open(const char *dirname, const char *fname, FILE **fp)
|
|
{
|
|
char *fullname;
|
|
|
|
if (!dirname || fname[0] == '/')
|
|
fullname = xstrdup(fname);
|
|
else
|
|
fullname = join_path(dirname, fname);
|
|
|
|
*fp = fopen(fullname, "rb");
|
|
if (!*fp) {
|
|
free(fullname);
|
|
fullname = NULL;
|
|
}
|
|
|
|
return fullname;
|
|
}
|
|
|
|
/**
|
|
* Open a file for read access
|
|
*
|
|
* If it is a relative filename, we search the full search path for it.
|
|
*
|
|
* @param fname Filename to open
|
|
* @param fp Returns pointer to opened FILE, or NULL on failure
|
|
* @return pointer to allocated filename, which caller must free
|
|
*/
|
|
static char *fopen_any_on_path(const char *fname, FILE **fp)
|
|
{
|
|
const char *cur_dir = NULL;
|
|
struct search_path *node;
|
|
char *fullname;
|
|
|
|
/* Try current directory first */
|
|
assert(fp);
|
|
if (current_srcfile)
|
|
cur_dir = current_srcfile->dir;
|
|
fullname = try_open(cur_dir, fname, fp);
|
|
|
|
/* Failing that, try each search path in turn */
|
|
for (node = search_path_head; !*fp && node; node = node->next)
|
|
fullname = try_open(node->dirname, fname, fp);
|
|
|
|
return fullname;
|
|
}
|
|
|
|
FILE *srcfile_relative_open(const char *fname, char **fullnamep)
|
|
{
|
|
FILE *f;
|
|
char *fullname;
|
|
|
|
if (streq(fname, "-")) {
|
|
f = stdin;
|
|
fullname = xstrdup("<stdin>");
|
|
} else {
|
|
fullname = fopen_any_on_path(fname, &f);
|
|
if (!f)
|
|
die("Couldn't open \"%s\": %s\n", fname,
|
|
strerror(errno));
|
|
}
|
|
|
|
if (depfile)
|
|
fprintf(depfile, " %s", fullname);
|
|
|
|
if (fullnamep)
|
|
*fullnamep = fullname;
|
|
else
|
|
free(fullname);
|
|
|
|
return f;
|
|
}
|
|
|
|
void srcfile_push(const char *fname)
|
|
{
|
|
struct srcfile_state *srcfile;
|
|
|
|
if (srcfile_depth++ >= MAX_SRCFILE_DEPTH)
|
|
die("Includes nested too deeply");
|
|
|
|
srcfile = xmalloc(sizeof(*srcfile));
|
|
|
|
srcfile->f = srcfile_relative_open(fname, &srcfile->name);
|
|
srcfile->dir = get_dirname(srcfile->name);
|
|
srcfile->prev = current_srcfile;
|
|
|
|
srcfile->lineno = 1;
|
|
srcfile->colno = 1;
|
|
|
|
current_srcfile = srcfile;
|
|
|
|
if (srcfile_depth == 1)
|
|
set_initial_path(srcfile->name);
|
|
}
|
|
|
|
bool srcfile_pop(void)
|
|
{
|
|
struct srcfile_state *srcfile = current_srcfile;
|
|
|
|
assert(srcfile);
|
|
|
|
current_srcfile = srcfile->prev;
|
|
|
|
if (fclose(srcfile->f))
|
|
die("Error closing \"%s\": %s\n", srcfile->name,
|
|
strerror(errno));
|
|
|
|
/* FIXME: We allow the srcfile_state structure to leak,
|
|
* because it could still be referenced from a location
|
|
* variable being carried through the parser somewhere. To
|
|
* fix this we could either allocate all the files from a
|
|
* table, or use a pool allocator. */
|
|
|
|
return current_srcfile ? true : false;
|
|
}
|
|
|
|
void srcfile_add_search_path(const char *dirname)
|
|
{
|
|
struct search_path *node;
|
|
|
|
/* Create the node */
|
|
node = xmalloc(sizeof(*node));
|
|
node->next = NULL;
|
|
node->dirname = xstrdup(dirname);
|
|
|
|
/* Add to the end of our list */
|
|
if (search_path_tail)
|
|
*search_path_tail = node;
|
|
else
|
|
search_path_head = node;
|
|
search_path_tail = &node->next;
|
|
}
|
|
|
|
void srcpos_update(struct srcpos *pos, const char *text, int len)
|
|
{
|
|
int i;
|
|
|
|
pos->file = current_srcfile;
|
|
|
|
pos->first_line = current_srcfile->lineno;
|
|
pos->first_column = current_srcfile->colno;
|
|
|
|
for (i = 0; i < len; i++)
|
|
if (text[i] == '\n') {
|
|
current_srcfile->lineno++;
|
|
current_srcfile->colno = 1;
|
|
} else {
|
|
current_srcfile->colno++;
|
|
}
|
|
|
|
pos->last_line = current_srcfile->lineno;
|
|
pos->last_column = current_srcfile->colno;
|
|
}
|
|
|
|
struct srcpos *
|
|
srcpos_copy(struct srcpos *pos)
|
|
{
|
|
struct srcpos *pos_new;
|
|
struct srcfile_state *srcfile_state;
|
|
|
|
if (!pos)
|
|
return NULL;
|
|
|
|
pos_new = xmalloc(sizeof(struct srcpos));
|
|
assert(pos->next == NULL);
|
|
memcpy(pos_new, pos, sizeof(struct srcpos));
|
|
|
|
/* allocate without free */
|
|
srcfile_state = xmalloc(sizeof(struct srcfile_state));
|
|
memcpy(srcfile_state, pos->file, sizeof(struct srcfile_state));
|
|
pos_new->file = srcfile_state;
|
|
|
|
return pos_new;
|
|
}
|
|
|
|
struct srcpos *srcpos_extend(struct srcpos *pos, struct srcpos *newtail)
|
|
{
|
|
struct srcpos *p;
|
|
|
|
if (!pos)
|
|
return newtail;
|
|
|
|
for (p = pos; p->next != NULL; p = p->next);
|
|
p->next = newtail;
|
|
return pos;
|
|
}
|
|
|
|
char *
|
|
srcpos_string(struct srcpos *pos)
|
|
{
|
|
const char *fname = "<no-file>";
|
|
char *pos_str;
|
|
|
|
if (pos->file && pos->file->name)
|
|
fname = pos->file->name;
|
|
|
|
|
|
if (pos->first_line != pos->last_line)
|
|
xasprintf(&pos_str, "%s:%d.%d-%d.%d", fname,
|
|
pos->first_line, pos->first_column,
|
|
pos->last_line, pos->last_column);
|
|
else if (pos->first_column != pos->last_column)
|
|
xasprintf(&pos_str, "%s:%d.%d-%d", fname,
|
|
pos->first_line, pos->first_column,
|
|
pos->last_column);
|
|
else
|
|
xasprintf(&pos_str, "%s:%d.%d", fname,
|
|
pos->first_line, pos->first_column);
|
|
|
|
return pos_str;
|
|
}
|
|
|
|
static char *
|
|
srcpos_string_comment(struct srcpos *pos, bool first_line, int level)
|
|
{
|
|
char *pos_str, *fname, *first, *rest;
|
|
bool fresh_fname = false;
|
|
|
|
if (!pos) {
|
|
if (level > 1) {
|
|
xasprintf(&pos_str, "<no-file>:<no-line>");
|
|
return pos_str;
|
|
} else {
|
|
return NULL;
|
|
}
|
|
}
|
|
|
|
if (!pos->file)
|
|
fname = "<no-file>";
|
|
else if (!pos->file->name)
|
|
fname = "<no-filename>";
|
|
else if (level > 1)
|
|
fname = pos->file->name;
|
|
else {
|
|
fname = shorten_to_initial_path(pos->file->name);
|
|
if (fname)
|
|
fresh_fname = true;
|
|
else
|
|
fname = pos->file->name;
|
|
}
|
|
|
|
if (level > 1)
|
|
xasprintf(&first, "%s:%d:%d-%d:%d", fname,
|
|
pos->first_line, pos->first_column,
|
|
pos->last_line, pos->last_column);
|
|
else
|
|
xasprintf(&first, "%s:%d", fname,
|
|
first_line ? pos->first_line : pos->last_line);
|
|
|
|
if (fresh_fname)
|
|
free(fname);
|
|
|
|
if (pos->next != NULL) {
|
|
rest = srcpos_string_comment(pos->next, first_line, level);
|
|
xasprintf(&pos_str, "%s, %s", first, rest);
|
|
free(first);
|
|
free(rest);
|
|
} else {
|
|
pos_str = first;
|
|
}
|
|
|
|
return pos_str;
|
|
}
|
|
|
|
char *srcpos_string_first(struct srcpos *pos, int level)
|
|
{
|
|
return srcpos_string_comment(pos, true, level);
|
|
}
|
|
|
|
char *srcpos_string_last(struct srcpos *pos, int level)
|
|
{
|
|
return srcpos_string_comment(pos, false, level);
|
|
}
|
|
|
|
void srcpos_verror(struct srcpos *pos, const char *prefix,
|
|
const char *fmt, va_list va)
|
|
{
|
|
char *srcstr;
|
|
|
|
srcstr = srcpos_string(pos);
|
|
|
|
fprintf(stderr, "%s: %s ", prefix, srcstr);
|
|
vfprintf(stderr, fmt, va);
|
|
fprintf(stderr, "\n");
|
|
|
|
free(srcstr);
|
|
}
|
|
|
|
void srcpos_error(struct srcpos *pos, const char *prefix,
|
|
const char *fmt, ...)
|
|
{
|
|
va_list va;
|
|
|
|
va_start(va, fmt);
|
|
srcpos_verror(pos, prefix, fmt, va);
|
|
va_end(va);
|
|
}
|
|
|
|
void srcpos_set_line(char *f, int l)
|
|
{
|
|
current_srcfile->name = f;
|
|
current_srcfile->lineno = l;
|
|
|
|
if (initial_cpp) {
|
|
initial_cpp = false;
|
|
set_initial_path(f);
|
|
}
|
|
}
|