linux_dsm_epyc7002/scripts/dtc/util.c

475 lines
9.4 KiB
C
Raw Normal View History

/*
* Copyright 2011 The Chromium Authors, All Rights Reserved.
* Copyright 2008 Jon Loeliger, Freescale Semiconductor, Inc.
*
* util_is_printable_string contributed by
* Pantelis Antoniou <pantelis.antoniou AT gmail.com>
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of the
* License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
* USA
*/
#include <ctype.h>
#include <stdio.h>
#include <stdlib.h>
#include <stdarg.h>
#include <string.h>
#include <assert.h>
#include <errno.h>
#include <fcntl.h>
#include <unistd.h>
#include "libfdt.h"
#include "util.h"
#include "version_gen.h"
char *xstrdup(const char *s)
{
int len = strlen(s) + 1;
char *d = xmalloc(len);
memcpy(d, s, len);
return d;
}
scripts/dtc: Update to upstream version 0931cea3ba20 Sync to upstream dtc commit 0931cea3ba20 ("dtc: fdtdump: check fdt if not in scanning mode"). In particular, this pulls in dtc overlay support. This adds the following commits from upstream: f88865469b65 dtc: Fix memory leak in character literal parsing 00fbb8696b66 Rename boot_info 1ef86ad2c24f dtc: Clean up /dts-v1/ and /plugin/ handling in grammar e3c769aa9c16 dtc: Don't always generate __symbols__ for plugins c96cb3c0169e tests: Don't use -@ on plugin de/recompile tests 66381538ce24 tests: Remove "suppression of fixups" tests ba765b273f0f tests: Clarify dtc overlay tests 6ea8cd944fcd tests: More thorough tests of libfdt overlay application without dtc 7d8ef6e1db97 tests: Correct fdt handling of overlays without fixups and base trees without symbols b4dc0ed8b127 tests: Fix double expansion bugs in test code 3ea879dc0c8f tests: Split overlay tests into those with do/don't exercise dtc plugin generation 47b4d66a2f11 tests: Test auto-alias generation on base tree, not overlay 72e1ad811523 tests: Make overlay/plugin tests unconditional e7b3c3b5951b tests: Add overlay tests 9637e3f772a9 tests: Add check_path test 20f29d8d41f6 dtc: Plugin and fixup support a2c92cac53f8 dtc: Document the dynamic plugin internals 8f70ac39801d checks: Pass boot_info instead of root node ea10f953878f libfdt: add missing errors to fdt_strerror() daa75e8fa594 libfdt: fix fdt_stringlist_search() e28eff5b787a libfdt: fix fdt_stringlist_count() ae97c7722840 tests: overlay: Rename the device tree blobs to be more explicit 96162d2bd9cb tests: overlay: Add test suffix to the compiled blobs 5ce8634733b7 libfdt: Add fdt_overlay_apply to the exported symbols 804a9db90ad2 fdt: strerr: Remove spurious BADOVERLAY e8c3a1a493fa tests: overlay: Move back the bad fixup tests 7a72d89d3f81 libfdt: overlay: Fix symbols and fixups nodes condition cabbaa972cdd libfdt: overlay: Report a bad overlay for mismatching local fixups deb0a5c1aeaa libfdt: Add BADPHANDLE error string 7b7a6be9ba15 libfdt: Don't use 'index' as a local variable name aea8860d831e tests: Add tests cases for the overlay code 0cdd06c5135b libfdt: Add overlay application function 39240cc865cf libfdt: Extend the reach of FDT_ERR_BADPHANDLE 4aa3a6f5e6d9 libfdt: Add new errors for the overlay code 6d1832c9e64b dtc: Remove "home page" link 45fd440a9561 Fix some typing errors in libfdt.h and livetree.c a59be4939c13 Merge tag 'v1.4.2' a34bb721caca dtc: Fix assorted problems in the testcases for the -a option 874f40588d3e Implement the -a option to pad dtb aligned ec02b34c05be dtc: Makefile improvements for release uploading 1ed45d40a137 dtc: Bump version to 1.4.2 36fd7331fb11 libfdt: simplify fdt_del_mem_rsv() d877364e4a0f libfdt: Add fdt_setprop_inplace_namelen_partial 3e9037aaad44 libfdt: Add fdt_getprop_namelen_w 84e0e1346c68 libfdt: Add max phandle retrieval function d29126c90acb libfdt: Add iterator over properties 902d0f0953d0 libfdt: Add a subnodes iterator macro c539075ba8ba fdtput.c: Fix memory leak. f79ddb83e185 fdtget.c: Fix memory leak 1074ee54b63f convert-dtsv0-lexer.l: fix memory leak e24d39a024e6 fdtdump.c: make sure size_t argument to memchr is always unsigned. 44a59713cf05 Remove unused srcpos_dump() function cb9241ae3453 DTC: Fix memory leak on flatname. 1ee0ae24ea09 Simplify check field and macro names 9d97527a8621 Remove property check functions 2e709d158e11 Remove tree check functions c4cb12e193e3 Alter grammar to allow multiple /dts-v1/ tags d71d25d76012 Use xasprintf() in srcpos 9dc404958e9c util: Add xasprintf portable asprintf variant beef80b8b55f Correct a missing space in a fdt_header cast 68d43cec1253 Correct line lengths in libfdt.h b0dbceafd49a Correct space-after-tab in libfdt.h Signed-off-by: Rob Herring <robh@kernel.org>
2017-01-04 23:45:20 +07:00
/* based in part from (3) vsnprintf */
int xasprintf(char **strp, const char *fmt, ...)
{
int n, size = 128; /* start with 128 bytes */
char *p;
va_list ap;
/* initial pointer is NULL making the fist realloc to be malloc */
p = NULL;
while (1) {
p = xrealloc(p, size);
/* Try to print in the allocated space. */
va_start(ap, fmt);
n = vsnprintf(p, size, fmt, ap);
va_end(ap);
/* If that worked, return the string. */
if (n > -1 && n < size)
break;
/* Else try again with more space. */
if (n > -1) /* glibc 2.1 */
size = n + 1; /* precisely what is needed */
else /* glibc 2.0 */
size *= 2; /* twice the old size */
}
*strp = p;
return strlen(p);
}
char *join_path(const char *path, const char *name)
{
int lenp = strlen(path);
int lenn = strlen(name);
int len;
int needslash = 1;
char *str;
len = lenp + lenn + 2;
if ((lenp > 0) && (path[lenp-1] == '/')) {
needslash = 0;
len--;
}
str = xmalloc(len);
memcpy(str, path, lenp);
if (needslash) {
str[lenp] = '/';
lenp++;
}
memcpy(str+lenp, name, lenn+1);
return str;
}
bool util_is_printable_string(const void *data, int len)
{
const char *s = data;
const char *ss, *se;
/* zero length is not */
if (len == 0)
return 0;
/* must terminate with zero */
if (s[len - 1] != '\0')
return 0;
se = s + len;
while (s < se) {
ss = s;
while (s < se && *s && isprint((unsigned char)*s))
s++;
/* not zero, or not done yet */
if (*s != '\0' || s == ss)
return 0;
s++;
}
return 1;
}
/*
* Parse a octal encoded character starting at index i in string s. The
* resulting character will be returned and the index i will be updated to
* point at the character directly after the end of the encoding, this may be
* the '\0' terminator of the string.
*/
static char get_oct_char(const char *s, int *i)
{
char x[4];
char *endx;
long val;
x[3] = '\0';
strncpy(x, s + *i, 3);
val = strtol(x, &endx, 8);
assert(endx > x);
(*i) += endx - x;
return val;
}
/*
* Parse a hexadecimal encoded character starting at index i in string s. The
* resulting character will be returned and the index i will be updated to
* point at the character directly after the end of the encoding, this may be
* the '\0' terminator of the string.
*/
static char get_hex_char(const char *s, int *i)
{
char x[3];
char *endx;
long val;
x[2] = '\0';
strncpy(x, s + *i, 2);
val = strtol(x, &endx, 16);
if (!(endx > x))
die("\\x used with no following hex digits\n");
(*i) += endx - x;
return val;
}
char get_escape_char(const char *s, int *i)
{
char c = s[*i];
int j = *i + 1;
char val;
switch (c) {
case 'a':
val = '\a';
break;
case 'b':
val = '\b';
break;
case 't':
val = '\t';
break;
case 'n':
val = '\n';
break;
case 'v':
val = '\v';
break;
case 'f':
val = '\f';
break;
case 'r':
val = '\r';
break;
case '0':
case '1':
case '2':
case '3':
case '4':
case '5':
case '6':
case '7':
j--; /* need to re-read the first digit as
* part of the octal value */
val = get_oct_char(s, &j);
break;
case 'x':
val = get_hex_char(s, &j);
break;
default:
val = c;
}
(*i) = j;
return val;
}
int utilfdt_read_err_len(const char *filename, char **buffp, off_t *len)
{
int fd = 0; /* assume stdin */
char *buf = NULL;
off_t bufsize = 1024, offset = 0;
int ret = 0;
*buffp = NULL;
if (strcmp(filename, "-") != 0) {
fd = open(filename, O_RDONLY);
if (fd < 0)
return errno;
}
/* Loop until we have read everything */
buf = xmalloc(bufsize);
do {
/* Expand the buffer to hold the next chunk */
if (offset == bufsize) {
bufsize *= 2;
buf = xrealloc(buf, bufsize);
}
ret = read(fd, &buf[offset], bufsize - offset);
if (ret < 0) {
ret = errno;
break;
}
offset += ret;
} while (ret != 0);
/* Clean up, including closing stdin; return errno on error */
close(fd);
if (ret)
free(buf);
else
*buffp = buf;
*len = bufsize;
return ret;
}
int utilfdt_read_err(const char *filename, char **buffp)
{
off_t len;
return utilfdt_read_err_len(filename, buffp, &len);
}
char *utilfdt_read_len(const char *filename, off_t *len)
{
char *buff;
int ret = utilfdt_read_err_len(filename, &buff, len);
if (ret) {
fprintf(stderr, "Couldn't open blob from '%s': %s\n", filename,
strerror(ret));
return NULL;
}
/* Successful read */
return buff;
}
char *utilfdt_read(const char *filename)
{
off_t len;
return utilfdt_read_len(filename, &len);
}
int utilfdt_write_err(const char *filename, const void *blob)
{
int fd = 1; /* assume stdout */
int totalsize;
int offset;
int ret = 0;
const char *ptr = blob;
if (strcmp(filename, "-") != 0) {
fd = open(filename, O_WRONLY | O_CREAT | O_TRUNC, 0666);
if (fd < 0)
return errno;
}
totalsize = fdt_totalsize(blob);
offset = 0;
while (offset < totalsize) {
ret = write(fd, ptr + offset, totalsize - offset);
if (ret < 0) {
ret = -errno;
break;
}
offset += ret;
}
/* Close the file/stdin; return errno on error */
if (fd != 1)
close(fd);
return ret < 0 ? -ret : 0;
}
int utilfdt_write(const char *filename, const void *blob)
{
int ret = utilfdt_write_err(filename, blob);
if (ret) {
fprintf(stderr, "Couldn't write blob to '%s': %s\n", filename,
strerror(ret));
}
return ret ? -1 : 0;
}
int utilfdt_decode_type(const char *fmt, int *type, int *size)
{
int qualifier = 0;
if (!*fmt)
return -1;
/* get the conversion qualifier */
*size = -1;
if (strchr("hlLb", *fmt)) {
qualifier = *fmt++;
if (qualifier == *fmt) {
switch (*fmt++) {
/* TODO: case 'l': qualifier = 'L'; break;*/
case 'h':
qualifier = 'b';
break;
}
}
}
/* we should now have a type */
if ((*fmt == '\0') || !strchr("iuxs", *fmt))
return -1;
/* convert qualifier (bhL) to byte size */
if (*fmt != 's')
*size = qualifier == 'b' ? 1 :
qualifier == 'h' ? 2 :
qualifier == 'l' ? 4 : -1;
*type = *fmt++;
/* that should be it! */
if (*fmt)
return -1;
return 0;
}
void utilfdt_print_data(const char *data, int len)
{
int i;
const char *s;
/* no data, don't print */
if (len == 0)
return;
if (util_is_printable_string(data, len)) {
printf(" = ");
s = data;
do {
printf("\"%s\"", s);
s += strlen(s) + 1;
if (s < data + len)
printf(", ");
} while (s < data + len);
} else if ((len % 4) == 0) {
scripts/dtc: Update to upstream version v1.4.4-8-g756ffc4f52f6 This adds the following commits from upstream: 756ffc4f52f6 Build pylibfdt as part of the normal build process 8cb3896358e9 Adjust libfdt.h to work with swig b40aa8359aff Mention pylibfdt in the documentation 12cfb740cc76 Add tests for pylibfdt 50f250701631 Add an initial Python library for libfdt cdbb2b6c7a3a checks: Warn on node name unit-addresses with '0x' or leading 0s 4c15d5da17cc checks: Add bus checks for simple-bus buses 33c3985226d3 checks: Add bus checks for PCI buses 558cd81bdd43 dtc: Bump version to v1.4.4 c17a811c62eb fdtput: Remove star from value_len documentation 194d5caaefcb fdtget: Use @return to document the return value d922ecdd017b tests: Make realloc_fdt() really allocate *fdt 921cc17fec29 libfdt: overlay: Check the value of the right variable 9ffdf60bf463 dtc: Simplify asm_emit_string() implementation 881012e44386 libfdt: Change names of sparse helper macros bad5b28049e5 Fix assorted sparse warnings 672ac09ea04d Clean up gcc attributes 49300f2ade6a dtc: Don't abuse struct fdt_reserve_entry fa8bc7f928ac dtc: Bump version to v1.4.3 34a9886a177f Add printf format attributes f72508e2b6ca Correct some broken printf() like format mismatches 397d5ef0203c libfdt: Add fdt_setprop_empty() 69a1bd6ad3f9 libfdt: Remove undefined behaviour setting empty properties acd1b534a592 Print output filename as part of warning messages 120775eb1cf3 dtc: Use streq() in preference to strcmp() 852e9ecbe197 checks: Add Warning for stricter node name character checking ef0e8f061534 checks: Add Warning for stricter property name character checking 00d7bb1f4b0e dtc: pos parameter to srcpos_string() can't be NULL 95d57726bca4 livetree.c: Fix memory leak 3b9c97093d6e dtc: Fix NULL pointer use in dtlabel + dtref case 43eb551426ea manual: Fix typo it -> in 4baf15f7f13f Makefile: Add tags rule Signed-off-by: Rob Herring <robh@kernel.org>
2017-03-21 21:01:08 +07:00
const fdt32_t *cell = (const fdt32_t *)data;
printf(" = <");
for (i = 0, len /= 4; i < len; i++)
printf("0x%08x%s", fdt32_to_cpu(cell[i]),
i < (len - 1) ? " " : "");
printf(">");
} else {
const unsigned char *p = (const unsigned char *)data;
printf(" = [");
for (i = 0; i < len; i++)
printf("%02x%s", *p++, i < len - 1 ? " " : "");
printf("]");
}
}
scripts/dtc: Update to upstream version v1.4.4-8-g756ffc4f52f6 This adds the following commits from upstream: 756ffc4f52f6 Build pylibfdt as part of the normal build process 8cb3896358e9 Adjust libfdt.h to work with swig b40aa8359aff Mention pylibfdt in the documentation 12cfb740cc76 Add tests for pylibfdt 50f250701631 Add an initial Python library for libfdt cdbb2b6c7a3a checks: Warn on node name unit-addresses with '0x' or leading 0s 4c15d5da17cc checks: Add bus checks for simple-bus buses 33c3985226d3 checks: Add bus checks for PCI buses 558cd81bdd43 dtc: Bump version to v1.4.4 c17a811c62eb fdtput: Remove star from value_len documentation 194d5caaefcb fdtget: Use @return to document the return value d922ecdd017b tests: Make realloc_fdt() really allocate *fdt 921cc17fec29 libfdt: overlay: Check the value of the right variable 9ffdf60bf463 dtc: Simplify asm_emit_string() implementation 881012e44386 libfdt: Change names of sparse helper macros bad5b28049e5 Fix assorted sparse warnings 672ac09ea04d Clean up gcc attributes 49300f2ade6a dtc: Don't abuse struct fdt_reserve_entry fa8bc7f928ac dtc: Bump version to v1.4.3 34a9886a177f Add printf format attributes f72508e2b6ca Correct some broken printf() like format mismatches 397d5ef0203c libfdt: Add fdt_setprop_empty() 69a1bd6ad3f9 libfdt: Remove undefined behaviour setting empty properties acd1b534a592 Print output filename as part of warning messages 120775eb1cf3 dtc: Use streq() in preference to strcmp() 852e9ecbe197 checks: Add Warning for stricter node name character checking ef0e8f061534 checks: Add Warning for stricter property name character checking 00d7bb1f4b0e dtc: pos parameter to srcpos_string() can't be NULL 95d57726bca4 livetree.c: Fix memory leak 3b9c97093d6e dtc: Fix NULL pointer use in dtlabel + dtref case 43eb551426ea manual: Fix typo it -> in 4baf15f7f13f Makefile: Add tags rule Signed-off-by: Rob Herring <robh@kernel.org>
2017-03-21 21:01:08 +07:00
void NORETURN util_version(void)
{
printf("Version: %s\n", DTC_VERSION);
exit(0);
}
scripts/dtc: Update to upstream version v1.4.4-8-g756ffc4f52f6 This adds the following commits from upstream: 756ffc4f52f6 Build pylibfdt as part of the normal build process 8cb3896358e9 Adjust libfdt.h to work with swig b40aa8359aff Mention pylibfdt in the documentation 12cfb740cc76 Add tests for pylibfdt 50f250701631 Add an initial Python library for libfdt cdbb2b6c7a3a checks: Warn on node name unit-addresses with '0x' or leading 0s 4c15d5da17cc checks: Add bus checks for simple-bus buses 33c3985226d3 checks: Add bus checks for PCI buses 558cd81bdd43 dtc: Bump version to v1.4.4 c17a811c62eb fdtput: Remove star from value_len documentation 194d5caaefcb fdtget: Use @return to document the return value d922ecdd017b tests: Make realloc_fdt() really allocate *fdt 921cc17fec29 libfdt: overlay: Check the value of the right variable 9ffdf60bf463 dtc: Simplify asm_emit_string() implementation 881012e44386 libfdt: Change names of sparse helper macros bad5b28049e5 Fix assorted sparse warnings 672ac09ea04d Clean up gcc attributes 49300f2ade6a dtc: Don't abuse struct fdt_reserve_entry fa8bc7f928ac dtc: Bump version to v1.4.3 34a9886a177f Add printf format attributes f72508e2b6ca Correct some broken printf() like format mismatches 397d5ef0203c libfdt: Add fdt_setprop_empty() 69a1bd6ad3f9 libfdt: Remove undefined behaviour setting empty properties acd1b534a592 Print output filename as part of warning messages 120775eb1cf3 dtc: Use streq() in preference to strcmp() 852e9ecbe197 checks: Add Warning for stricter node name character checking ef0e8f061534 checks: Add Warning for stricter property name character checking 00d7bb1f4b0e dtc: pos parameter to srcpos_string() can't be NULL 95d57726bca4 livetree.c: Fix memory leak 3b9c97093d6e dtc: Fix NULL pointer use in dtlabel + dtref case 43eb551426ea manual: Fix typo it -> in 4baf15f7f13f Makefile: Add tags rule Signed-off-by: Rob Herring <robh@kernel.org>
2017-03-21 21:01:08 +07:00
void NORETURN util_usage(const char *errmsg, const char *synopsis,
const char *short_opts,
struct option const long_opts[],
const char * const opts_help[])
{
FILE *fp = errmsg ? stderr : stdout;
const char a_arg[] = "<arg>";
size_t a_arg_len = strlen(a_arg) + 1;
size_t i;
int optlen;
fprintf(fp,
"Usage: %s\n"
"\n"
"Options: -[%s]\n", synopsis, short_opts);
/* prescan the --long opt length to auto-align */
optlen = 0;
for (i = 0; long_opts[i].name; ++i) {
/* +1 is for space between --opt and help text */
int l = strlen(long_opts[i].name) + 1;
if (long_opts[i].has_arg == a_argument)
l += a_arg_len;
if (optlen < l)
optlen = l;
}
for (i = 0; long_opts[i].name; ++i) {
/* helps when adding new applets or options */
assert(opts_help[i] != NULL);
/* first output the short flag if it has one */
if (long_opts[i].val > '~')
fprintf(fp, " ");
else
fprintf(fp, " -%c, ", long_opts[i].val);
/* then the long flag */
if (long_opts[i].has_arg == no_argument)
fprintf(fp, "--%-*s", optlen, long_opts[i].name);
else
fprintf(fp, "--%s %s%*s", long_opts[i].name, a_arg,
(int)(optlen - strlen(long_opts[i].name) - a_arg_len), "");
/* finally the help text */
fprintf(fp, "%s\n", opts_help[i]);
}
if (errmsg) {
fprintf(fp, "\nError: %s\n", errmsg);
exit(EXIT_FAILURE);
} else
exit(EXIT_SUCCESS);
}