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cd296721a9
This updates scripts/dtc to commit 317a5d9 "dtc: zero out new label objects" from git://git.jdl.com/software/dtc.git. This adds features such as: * /bits/ syntax for cell data. * Math expressions within cell data. * The ability to delete properties or nodes. * Support for #line directives in the input file, which allows the use of cpp on *.dts. * -i command-line option (/include/ path) * -W/-E command-line options for error/warning control. * Removal of spew to STDOUT containing the filename being compiled. * Many additions to the libfdt API. Signed-off-by: Stephen Warren <swarren@nvidia.com> Acked-by: Jon Loeliger <jdl@jdl.com> Signed-off-by: Rob Herring <rob.herring@calxeda.com>
270 lines
5.1 KiB
C
270 lines
5.1 KiB
C
/*
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* (C) Copyright David Gibson <dwg@au1.ibm.com>, IBM Corporation. 2005.
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*
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of the
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* License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
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* USA
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*/
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#include "dtc.h"
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void data_free(struct data d)
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{
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struct marker *m, *nm;
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m = d.markers;
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while (m) {
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nm = m->next;
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free(m->ref);
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free(m);
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m = nm;
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}
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if (d.val)
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free(d.val);
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}
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struct data data_grow_for(struct data d, int xlen)
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{
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struct data nd;
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int newsize;
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if (xlen == 0)
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return d;
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nd = d;
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newsize = xlen;
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while ((d.len + xlen) > newsize)
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newsize *= 2;
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nd.val = xrealloc(d.val, newsize);
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return nd;
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}
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struct data data_copy_mem(const char *mem, int len)
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{
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struct data d;
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d = data_grow_for(empty_data, len);
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d.len = len;
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memcpy(d.val, mem, len);
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return d;
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}
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struct data data_copy_escape_string(const char *s, int len)
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{
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int i = 0;
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struct data d;
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char *q;
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d = data_grow_for(empty_data, strlen(s)+1);
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q = d.val;
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while (i < len) {
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char c = s[i++];
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if (c == '\\')
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c = get_escape_char(s, &i);
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q[d.len++] = c;
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}
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q[d.len++] = '\0';
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return d;
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}
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struct data data_copy_file(FILE *f, size_t maxlen)
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{
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struct data d = empty_data;
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while (!feof(f) && (d.len < maxlen)) {
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size_t chunksize, ret;
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if (maxlen == -1)
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chunksize = 4096;
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else
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chunksize = maxlen - d.len;
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d = data_grow_for(d, chunksize);
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ret = fread(d.val + d.len, 1, chunksize, f);
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if (ferror(f))
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die("Error reading file into data: %s", strerror(errno));
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if (d.len + ret < d.len)
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die("Overflow reading file into data\n");
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d.len += ret;
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}
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return d;
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}
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struct data data_append_data(struct data d, const void *p, int len)
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{
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d = data_grow_for(d, len);
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memcpy(d.val + d.len, p, len);
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d.len += len;
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return d;
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}
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struct data data_insert_at_marker(struct data d, struct marker *m,
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const void *p, int len)
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{
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d = data_grow_for(d, len);
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memmove(d.val + m->offset + len, d.val + m->offset, d.len - m->offset);
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memcpy(d.val + m->offset, p, len);
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d.len += len;
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/* Adjust all markers after the one we're inserting at */
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m = m->next;
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for_each_marker(m)
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m->offset += len;
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return d;
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}
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static struct data data_append_markers(struct data d, struct marker *m)
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{
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struct marker **mp = &d.markers;
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/* Find the end of the markerlist */
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while (*mp)
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mp = &((*mp)->next);
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*mp = m;
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return d;
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}
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struct data data_merge(struct data d1, struct data d2)
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{
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struct data d;
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struct marker *m2 = d2.markers;
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d = data_append_markers(data_append_data(d1, d2.val, d2.len), m2);
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/* Adjust for the length of d1 */
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for_each_marker(m2)
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m2->offset += d1.len;
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d2.markers = NULL; /* So data_free() doesn't clobber them */
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data_free(d2);
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return d;
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}
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struct data data_append_integer(struct data d, uint64_t value, int bits)
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{
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uint8_t value_8;
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uint16_t value_16;
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uint32_t value_32;
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uint64_t value_64;
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switch (bits) {
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case 8:
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value_8 = value;
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return data_append_data(d, &value_8, 1);
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case 16:
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value_16 = cpu_to_fdt16(value);
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return data_append_data(d, &value_16, 2);
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case 32:
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value_32 = cpu_to_fdt32(value);
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return data_append_data(d, &value_32, 4);
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case 64:
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value_64 = cpu_to_fdt64(value);
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return data_append_data(d, &value_64, 8);
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default:
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die("Invalid literal size (%d)\n", bits);
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}
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}
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struct data data_append_re(struct data d, const struct fdt_reserve_entry *re)
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{
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struct fdt_reserve_entry bere;
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bere.address = cpu_to_fdt64(re->address);
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bere.size = cpu_to_fdt64(re->size);
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return data_append_data(d, &bere, sizeof(bere));
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}
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struct data data_append_cell(struct data d, cell_t word)
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{
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return data_append_integer(d, word, sizeof(word) * 8);
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}
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struct data data_append_addr(struct data d, uint64_t addr)
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{
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return data_append_integer(d, addr, sizeof(addr) * 8);
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}
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struct data data_append_byte(struct data d, uint8_t byte)
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{
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return data_append_data(d, &byte, 1);
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}
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struct data data_append_zeroes(struct data d, int len)
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{
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d = data_grow_for(d, len);
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memset(d.val + d.len, 0, len);
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d.len += len;
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return d;
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}
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struct data data_append_align(struct data d, int align)
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{
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int newlen = ALIGN(d.len, align);
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return data_append_zeroes(d, newlen - d.len);
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}
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struct data data_add_marker(struct data d, enum markertype type, char *ref)
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{
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struct marker *m;
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m = xmalloc(sizeof(*m));
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m->offset = d.len;
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m->type = type;
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m->ref = ref;
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m->next = NULL;
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return data_append_markers(d, m);
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}
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int data_is_one_string(struct data d)
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{
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int i;
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int len = d.len;
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if (len == 0)
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return 0;
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for (i = 0; i < len-1; i++)
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if (d.val[i] == '\0')
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return 0;
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if (d.val[len-1] != '\0')
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return 0;
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return 1;
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}
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