338 lines
6.8 KiB
C
338 lines
6.8 KiB
C
|
// SPDX-License-Identifier: GPL-2.0-or-later
|
||
|
|
/*
|
||
|
|
* (C) Copyright David Gibson <dwg@au1.ibm.com>, IBM Corporation. 2005.
|
||
|
|
*/
|
||
|
|
|
||
|
|
#include "dtc.h"
|
||
|
|
#include "srcpos.h"
|
||
|
|
|
||
|
|
extern FILE *yyin;
|
||
|
|
extern int yyparse(void);
|
||
|
|
extern YYLTYPE yylloc;
|
||
|
|
|
||
|
|
struct dt_info *parser_output;
|
||
|
|
bool treesource_error;
|
||
|
|
|
||
|
|
struct dt_info *dt_from_source(const char *fname)
|
||
|
|
{
|
||
|
|
parser_output = NULL;
|
||
|
|
treesource_error = false;
|
||
|
|
|
||
|
|
srcfile_push(fname);
|
||
|
|
yyin = current_srcfile->f;
|
||
|
|
yylloc.file = current_srcfile;
|
||
|
|
|
||
|
|
if (yyparse() != 0)
|
||
|
|
die("Unable to parse input tree\n");
|
||
|
|
|
||
|
|
if (treesource_error)
|
||
|
|
die("Syntax error parsing input tree\n");
|
||
|
|
|
||
|
|
return parser_output;
|
||
|
|
}
|
||
|
|
|
||
|
|
static void write_prefix(FILE *f, int level)
|
||
|
|
{
|
||
|
|
int i;
|
||
|
|
|
||
|
|
for (i = 0; i < level; i++)
|
||
|
|
fputc('\t', f);
|
||
|
|
}
|
||
|
|
|
||
|
|
static bool isstring(char c)
|
||
|
|
{
|
||
|
|
return (isprint((unsigned char)c)
|
||
|
|
|| (c == '\0')
|
||
|
|
|| strchr("\a\b\t\n\v\f\r", c));
|
||
|
|
}
|
||
|
|
|
||
|
|
static void write_propval_string(FILE *f, const char *s, size_t len)
|
||
|
|
{
|
||
|
|
const char *end = s + len - 1;
|
||
|
|
|
||
|
|
if (!len)
|
||
|
|
return;
|
||
|
|
|
||
|
|
assert(*end == '\0');
|
||
|
|
|
||
|
|
fprintf(f, "\"");
|
||
|
|
while (s < end) {
|
||
|
|
char c = *s++;
|
||
|
|
switch (c) {
|
||
|
|
case '\a':
|
||
|
|
fprintf(f, "\\a");
|
||
|
|
break;
|
||
|
|
case '\b':
|
||
|
|
fprintf(f, "\\b");
|
||
|
|
break;
|
||
|
|
case '\t':
|
||
|
|
fprintf(f, "\\t");
|
||
|
|
break;
|
||
|
|
case '\n':
|
||
|
|
fprintf(f, "\\n");
|
||
|
|
break;
|
||
|
|
case '\v':
|
||
|
|
fprintf(f, "\\v");
|
||
|
|
break;
|
||
|
|
case '\f':
|
||
|
|
fprintf(f, "\\f");
|
||
|
|
break;
|
||
|
|
case '\r':
|
||
|
|
fprintf(f, "\\r");
|
||
|
|
break;
|
||
|
|
case '\\':
|
||
|
|
fprintf(f, "\\\\");
|
||
|
|
break;
|
||
|
|
case '\"':
|
||
|
|
fprintf(f, "\\\"");
|
||
|
|
break;
|
||
|
|
case '\0':
|
||
|
|
fprintf(f, "\\0");
|
||
|
|
break;
|
||
|
|
default:
|
||
|
|
if (isprint((unsigned char)c))
|
||
|
|
fprintf(f, "%c", c);
|
||
|
|
else
|
||
|
|
fprintf(f, "\\x%02"PRIx8, c);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
fprintf(f, "\"");
|
||
|
|
}
|
||
|
|
|
||
|
|
static void write_propval_int(FILE *f, const char *p, size_t len, size_t width)
|
||
|
|
{
|
||
|
|
const char *end = p + len;
|
||
|
|
assert(len % width == 0);
|
||
|
|
|
||
|
|
for (; p < end; p += width) {
|
||
|
|
switch (width) {
|
||
|
|
case 1:
|
||
|
|
fprintf(f, "%02"PRIx8, *(const uint8_t*)p);
|
||
|
|
break;
|
||
|
|
case 2:
|
||
|
|
fprintf(f, "0x%02"PRIx16, dtb_ld16(p));
|
||
|
|
break;
|
||
|
|
case 4:
|
||
|
|
fprintf(f, "0x%02"PRIx32, dtb_ld32(p));
|
||
|
|
break;
|
||
|
|
case 8:
|
||
|
|
fprintf(f, "0x%02"PRIx64, dtb_ld64(p));
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
if (p + width < end)
|
||
|
|
fputc(' ', f);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
static const char *delim_start[] = {
|
||
|
|
[TYPE_UINT8] = "[",
|
||
|
|
[TYPE_UINT16] = "/bits/ 16 <",
|
||
|
|
[TYPE_UINT32] = "<",
|
||
|
|
[TYPE_UINT64] = "/bits/ 64 <",
|
||
|
|
[TYPE_STRING] = "",
|
||
|
|
};
|
||
|
|
static const char *delim_end[] = {
|
||
|
|
[TYPE_UINT8] = "]",
|
||
|
|
[TYPE_UINT16] = ">",
|
||
|
|
[TYPE_UINT32] = ">",
|
||
|
|
[TYPE_UINT64] = ">",
|
||
|
|
[TYPE_STRING] = "",
|
||
|
|
};
|
||
|
|
|
||
|
|
static enum markertype guess_value_type(struct property *prop)
|
||
|
|
{
|
||
|
|
int len = prop->val.len;
|
||
|
|
const char *p = prop->val.val;
|
||
|
|
struct marker *m = prop->val.markers;
|
||
|
|
int nnotstring = 0, nnul = 0;
|
||
|
|
int nnotstringlbl = 0, nnotcelllbl = 0;
|
||
|
|
int i;
|
||
|
|
|
||
|
|
for (i = 0; i < len; i++) {
|
||
|
|
if (! isstring(p[i]))
|
||
|
|
nnotstring++;
|
||
|
|
if (p[i] == '\0')
|
||
|
|
nnul++;
|
||
|
|
}
|
||
|
|
|
||
|
|
for_each_marker_of_type(m, LABEL) {
|
||
|
|
if ((m->offset > 0) && (prop->val.val[m->offset - 1] != '\0'))
|
||
|
|
nnotstringlbl++;
|
||
|
|
if ((m->offset % sizeof(cell_t)) != 0)
|
||
|
|
nnotcelllbl++;
|
||
|
|
}
|
||
|
|
|
||
|
|
if ((p[len-1] == '\0') && (nnotstring == 0) && (nnul <= (len-nnul))
|
||
|
|
&& (nnotstringlbl == 0)) {
|
||
|
|
return TYPE_STRING;
|
||
|
|
} else if (((len % sizeof(cell_t)) == 0) && (nnotcelllbl == 0)) {
|
||
|
|
return TYPE_UINT32;
|
||
|
|
}
|
||
|
|
|
||
|
|
return TYPE_UINT8;
|
||
|
|
}
|
||
|
|
|
||
|
|
static void write_propval(FILE *f, struct property *prop)
|
||
|
|
{
|
||
|
|
size_t len = prop->val.len;
|
||
|
|
struct marker *m = prop->val.markers;
|
||
|
|
struct marker dummy_marker;
|
||
|
|
enum markertype emit_type = TYPE_NONE;
|
||
|
|
char *srcstr;
|
||
|
|
|
||
|
|
if (len == 0) {
|
||
|
|
fprintf(f, ";");
|
||
|
|
if (annotate) {
|
||
|
|
srcstr = srcpos_string_first(prop->srcpos, annotate);
|
||
|
|
if (srcstr) {
|
||
|
|
fprintf(f, " /* %s */", srcstr);
|
||
|
|
free(srcstr);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
fprintf(f, "\n");
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
|
||
|
|
fprintf(f, " =");
|
||
|
|
|
||
|
|
if (!next_type_marker(m)) {
|
||
|
|
/* data type information missing, need to guess */
|
||
|
|
dummy_marker.type = guess_value_type(prop);
|
||
|
|
dummy_marker.next = prop->val.markers;
|
||
|
|
dummy_marker.offset = 0;
|
||
|
|
dummy_marker.ref = NULL;
|
||
|
|
m = &dummy_marker;
|
||
|
|
}
|
||
|
|
|
||
|
|
for_each_marker(m) {
|
||
|
|
size_t chunk_len = (m->next ? m->next->offset : len) - m->offset;
|
||
|
|
size_t data_len = type_marker_length(m) ? : len - m->offset;
|
||
|
|
const char *p = &prop->val.val[m->offset];
|
||
|
|
struct marker *m_phandle;
|
||
|
|
|
||
|
|
if (is_type_marker(m->type)) {
|
||
|
|
emit_type = m->type;
|
||
|
|
fprintf(f, " %s", delim_start[emit_type]);
|
||
|
|
} else if (m->type == LABEL)
|
||
|
|
fprintf(f, " %s:", m->ref);
|
||
|
|
|
||
|
|
if (emit_type == TYPE_NONE || chunk_len == 0)
|
||
|
|
continue;
|
||
|
|
|
||
|
|
switch(emit_type) {
|
||
|
|
case TYPE_UINT16:
|
||
|
|
write_propval_int(f, p, chunk_len, 2);
|
||
|
|
break;
|
||
|
|
case TYPE_UINT32:
|
||
|
|
m_phandle = prop->val.markers;
|
||
|
|
for_each_marker_of_type(m_phandle, REF_PHANDLE)
|
||
|
|
if (m->offset == m_phandle->offset)
|
||
|
|
break;
|
||
|
|
|
||
|
|
if (m_phandle) {
|
||
|
|
if (m_phandle->ref[0] == '/')
|
||
|
|
fprintf(f, "&{%s}", m_phandle->ref);
|
||
|
|
else
|
||
|
|
fprintf(f, "&%s", m_phandle->ref);
|
||
|
|
if (chunk_len > 4) {
|
||
|
|
fputc(' ', f);
|
||
|
|
write_propval_int(f, p + 4, chunk_len - 4, 4);
|
||
|
|
}
|
||
|
|
} else {
|
||
|
|
write_propval_int(f, p, chunk_len, 4);
|
||
|
|
}
|
||
|
|
break;
|
||
|
|
case TYPE_UINT64:
|
||
|
|
write_propval_int(f, p, chunk_len, 8);
|
||
|
|
break;
|
||
|
|
case TYPE_STRING:
|
||
|
|
write_propval_string(f, p, chunk_len);
|
||
|
|
break;
|
||
|
|
default:
|
||
|
|
write_propval_int(f, p, chunk_len, 1);
|
||
|
|
}
|
||
|
|
|
||
|
|
if (chunk_len == data_len) {
|
||
|
|
size_t pos = m->offset + chunk_len;
|
||
|
|
fprintf(f, pos == len ? "%s" : "%s,",
|
||
|
|
delim_end[emit_type] ? : "");
|
||
|
|
emit_type = TYPE_NONE;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
fprintf(f, ";");
|
||
|
|
if (annotate) {
|
||
|
|
srcstr = srcpos_string_first(prop->srcpos, annotate);
|
||
|
|
if (srcstr) {
|
||
|
|
fprintf(f, " /* %s */", srcstr);
|
||
|
|
free(srcstr);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
fprintf(f, "\n");
|
||
|
|
}
|
||
|
|
|
||
|
|
static void write_tree_source_node(FILE *f, struct node *tree, int level)
|
||
|
|
{
|
||
|
|
struct property *prop;
|
||
|
|
struct node *child;
|
||
|
|
struct label *l;
|
||
|
|
char *srcstr;
|
||
|
|
|
||
|
|
write_prefix(f, level);
|
||
|
|
for_each_label(tree->labels, l)
|
||
|
|
fprintf(f, "%s: ", l->label);
|
||
|
|
if (tree->name && (*tree->name))
|
||
|
|
fprintf(f, "%s {", tree->name);
|
||
|
|
else
|
||
|
|
fprintf(f, "/ {");
|
||
|
|
|
||
|
|
if (annotate) {
|
||
|
|
srcstr = srcpos_string_first(tree->srcpos, annotate);
|
||
|
|
if (srcstr) {
|
||
|
|
fprintf(f, " /* %s */", srcstr);
|
||
|
|
free(srcstr);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
fprintf(f, "\n");
|
||
|
|
|
||
|
|
for_each_property(tree, prop) {
|
||
|
|
write_prefix(f, level+1);
|
||
|
|
for_each_label(prop->labels, l)
|
||
|
|
fprintf(f, "%s: ", l->label);
|
||
|
|
fprintf(f, "%s", prop->name);
|
||
|
|
write_propval(f, prop);
|
||
|
|
}
|
||
|
|
for_each_child(tree, child) {
|
||
|
|
fprintf(f, "\n");
|
||
|
|
write_tree_source_node(f, child, level+1);
|
||
|
|
}
|
||
|
|
write_prefix(f, level);
|
||
|
|
fprintf(f, "};");
|
||
|
|
if (annotate) {
|
||
|
|
srcstr = srcpos_string_last(tree->srcpos, annotate);
|
||
|
|
if (srcstr) {
|
||
|
|
fprintf(f, " /* %s */", srcstr);
|
||
|
|
free(srcstr);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
fprintf(f, "\n");
|
||
|
|
}
|
||
|
|
|
||
|
|
void dt_to_source(FILE *f, struct dt_info *dti)
|
||
|
|
{
|
||
|
|
struct reserve_info *re;
|
||
|
|
|
||
|
|
fprintf(f, "/dts-v1/;\n\n");
|
||
|
|
|
||
|
|
for (re = dti->reservelist; re; re = re->next) {
|
||
|
|
struct label *l;
|
||
|
|
|
||
|
|
for_each_label(re->labels, l)
|
||
|
|
fprintf(f, "%s: ", l->label);
|
||
|
|
fprintf(f, "/memreserve/\t0x%016llx 0x%016llx;\n",
|
||
|
|
(unsigned long long)re->address,
|
||
|
|
(unsigned long long)re->size);
|
||
|
|
}
|
||
|
|
|
||
|
|
write_tree_source_node(f, dti->dt, 0);
|
||
|
|
}
|