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scripts/dtc: Update to upstream version v1.7.0-93-g1df7b047fe43

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This adds the following commits from upstream:

1df7b047fe43 pylibfdt/Makefile.pylibfdt: use project's flags to compile the extension
61e88fdcec52 libfdt: overlay: Fix phandle overwrite check for new subtrees
49d30894466e meson: fix installation with meson-python
d54aaf93673c pylibfdt: clean up python build directory
ab86f1e9fda8 pylibfdt: add VERSION.txt to Python sdist
7b8a30eceabe pylibfdt: fix Python version
ff4f17eb5865 pylibfdt/Makefile.pylibfdt: fix Python library being rebuild during install
9e313b14e684 pylibfdt/meson.build: fix Python library being rebuilt during install
d598fc3648ec tests/run_tests.sh: fix Meson library path being dropped
b98239da2f18 tests/meson.build: fix python and yaml tests not running
c17d76ab5e84 checks: Check the overall length of "interrupt-map"
ae26223a056e libfdt: overlay: Refactor overlay_fixup_phandle
4dd831affd01 libfdt: tests: Update test case for overlay_bad_fixup
e6d294200837 tests: Remove two_roots and named_root from LIBTREE_TESTS_L and add all dtb filenames generated by dumptrees to TESTS_TREES_L in Makefile.tests
855c934e26ae tests: fix tests broken under Meson
4fd3f4f0a95d github: enforce testing pylibfdt and yaml support
9ca7d62dbf0b meson: split run-tests by type
bb51223083a4 meson: fix dependencies of tests
e81900635c95 meson: fix pylibfdt missing dependency on libfdt
822123856980 pylibfdt: fix get_mem_rsv for newer Python versions
1fad065080e6 libfdt: overlay: ensure that existing phandles are not overwritten
b0aacd0a7735 github: add windows/msys CI build
ae97d9745862 github: Don't accidentally suppress test errors
057a7dbbb777 github: Display meson test logs on failure
92b5d4e91678 pylibfdt: Remove some apparently deprecated options from setup.py
417e3299dbd1 github: Update to newer checkout action
5e6cefa17e2d fix MinGW format attribute
24f60011fd43 libfdt: Simplify adjustment of values for local fixups
da39ee0e68b6 libfdt: rework shared/static libraries
a669223f7a60 Makefile: do not hardcode the `install` program path
3fbfdd08afd2 libfdt: fix duplicate meson target
dcef5f834ea3 tests: use correct pkg-config when cross compiling
0b8026ff254f meson: allow building from shallow clones
95c74d71f090 treesource: Restore string list output when no type markers
2283dd78eff5 libfdt: fdt_path_offset_namelen: Reject empty path
79b9e326a162 libfdt: fdt_get_alias_namelen: Validate aliases
52157f13ef3d pylibfdt: Support boolean properties
d77433727566 dtc: fix missing string in usage_opts_help
ad8bf9f9aa39 libfdt: Fix fdt_appendprop_addrrange documentation
6c5e189fb952 github: add workflow for Meson builds
a3dc9f006a78 libfdt: rename libfdt-X.Y.Z.so to libfdt.so.X.Y.Z
35019949c4c7 workflows: build: remove setuptools_scm hack
cd3e2304f4a9 pylibfdt: use fallback version in tarballs
0f5864567745 move release version into VERSION.txt
38165954c13b libfdt: add missing version symbols
5e98b5979354 editorconfig: use tab indentation for version.lds
d030a893be25 tests: generate dtbs in Meson build directory
8d8372b13706 tests: fix use of deprecated meson methods
761114effaf7 pylibtfdt: fix use of deprecated meson method
bf6377a98d97 meson: set minimum Meson version to 0.56.0
4c68e4b16b22 libfdt: fix library version to match project version
bdc5c8793a13 meson: allow disabling tests
f088e381f29e Makefile: allow to install libfdt without building executables
6df5328a902c Fix use of <ctype.h> functions
ccf1f62d59ad libfdt: Fix a typo in libfdt.h
71a8b8ef0adf libfdt: meson: Fix linking on macOS linker
589d8c7653c7 dtc: Add an option to generate __local_fixups__ and __fixups__
e8364666d5ac CI: Add build matrix with multiple Linux distributions
3b02a94b486f dtc: Correct invalid dts output with mixed phandles and integers
d4888958d64b tests: Add additional tests for device graph checks
ea3b9a1d2c5a checks: Fix crash in graph_child_address if 'reg' cell size != 1
b2b9671583e9 livetree: fix off-by-one in propval_cell_n() bounds check
ab481e483061 Add definition for a GitHub Actions CI job
c88038c9b8ca Drop obsolete/broken CI definitions
0ac8b30ba5a1 yaml: Depend on libyaml >= 0.2.3
f1657b2fb5be tests: Add test cases for bad endpoint node and remote-endpoint prop checks
44bb89cafd3d checks: Fix segmentation fault in check_graph_node
60bcf1cde1a8 improve documentation for fdt_path_offset()
a6f997bc77d4 add fdt_get_symbol() and fdt_get_symbol_namelen() functions
18f5ec12a10e use fdt_path_getprop_namelen() in fdt_get_alias_namelen()
df093279282c add fdt_path_getprop_namelen() helper
129bb4b78bc6 doc: dt-object-internal: Fix a typo
390f481521c3 fdtoverlay: Drop a a repeated article
9f8b382ed45e manual: Fix and improve documentation about -@
2cdf93a6d402 fdtoverlay: Fix usage string to not mention "<type>"
72fc810c3025 build-sys: add -Wwrite-strings
083ab26da83b tests: fix leaks spotted by ASAN
6f8b28f49609 livetree: fix leak spotted by ASAN
fd68bb8c5658 Make name_node() xstrdup its name argument
4718189c4ca8 Delay xstrdup() of node and property names coming from a flat tree
0b842c3c8199 Make build_property() xstrdup its name argument
9cceabea1ee0 checks: correct I2C 10-bit address check
0d56145938fe yamltree.c: fix -Werror=discarded-qualifiers & -Werror=cast-qual
61fa22b05f69 checks: make check.data const
7a1d72a788e0 checks.c: fix check_msg() leak
ee5799938697 checks.c: fix heap-buffer-overflow
44c9b73801c1 tests: fix -Wwrite-strings
5b60f5104fcc srcpos.c: fix -Wwrite-strings
32174a66efa4 meson: Fix cell overflow tests when running from meson
64a907f08b9b meson.build: bump version to 1.7.0
e3cde0613bfd Add -Wsuggest-attribute=format warning, correct warnings thus generated
41821821101a Use #ifdef NO_VALGRIND
71c19f20b3ef Do not redefine _GNU_SOURCE if already set
039a99414e77 Bump version to v1.7.0
9b62ec84bb2d Merge remote-tracking branch 'gitlab/main'
3f29d6d85c24 pylibfdt: add size_hint parameter for get_path
2022bb10879d checks: Update #{size,address}-cells check for 'dma-ranges'

Signed-off-by: Rob Herring (Arm) <robh@kernel.org>
This commit is contained in:
Rob Herring (Arm) 2024-07-09 09:13:03 -06:00
parent 9ca5a7d9d2
commit 12d638f48c
15 changed files with 539 additions and 158 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

85
scripts/dtc/checks.c
View File

@ -31,7 +31,7 @@ typedef void (*check_fn)(struct check *c, struct dt_info *dti, struct node *node
struct check {
const char *name;
check_fn fn;
void *data;
const void *data;
bool warn, error;
enum checkstatus status;
bool inprogress;
@ -114,6 +114,7 @@ static inline void PRINTF(5, 6) check_msg(struct check *c, struct dt_info *dti,
}
fputs(str, stderr);
free(str);
}
#define FAIL(c, dti, node, ...) \
@ -207,7 +208,7 @@ static void check_is_string(struct check *c, struct dt_info *dti,
struct node *node)
{
struct property *prop;
char *propname = c->data;
const char *propname = c->data;
prop = get_property(node, propname);
if (!prop)
@ -226,7 +227,7 @@ static void check_is_string_list(struct check *c, struct dt_info *dti,
{
int rem, l;
struct property *prop;
char *propname = c->data;
const char *propname = c->data;
char *str;
prop = get_property(node, propname);
@ -254,7 +255,7 @@ static void check_is_cell(struct check *c, struct dt_info *dti,
struct node *node)
{
struct property *prop;
char *propname = c->data;
const char *propname = c->data;
prop = get_property(node, propname);
if (!prop)
@ -1078,10 +1079,11 @@ static void check_i2c_bus_reg(struct check *c, struct dt_info *dti, struct node
/* Ignore I2C_OWN_SLAVE_ADDRESS */
reg &= ~I2C_OWN_SLAVE_ADDRESS;
if ((reg & I2C_TEN_BIT_ADDRESS) && ((reg & ~I2C_TEN_BIT_ADDRESS) > 0x3ff))
FAIL_PROP(c, dti, node, prop, "I2C address must be less than 10-bits, got \"0x%x\"",
if (reg & I2C_TEN_BIT_ADDRESS) {
if ((reg & ~I2C_TEN_BIT_ADDRESS) > 0x3ff)
FAIL_PROP(c, dti, node, prop, "I2C address must be less than 10-bits, got \"0x%x\"",
reg);
else if (reg > 0x7f)
} else if (reg > 0x7f)
FAIL_PROP(c, dti, node, prop, "I2C address must be less than 7-bits, got \"0x%x\". Set I2C_TEN_BIT_ADDRESS for 10 bit addresses or fix the property",
reg);
}
@ -1108,7 +1110,7 @@ static void check_spi_bus_bridge(struct check *c, struct dt_info *dti, struct no
for_each_child(node, child) {
struct property *prop;
for_each_property(child, prop) {
if (strprefixeq(prop->name, 4, "spi-")) {
if (strstarts(prop->name, "spi-")) {
node->bus = &spi_bus;
break;
}
@ -1180,7 +1182,7 @@ static void check_unit_address_format(struct check *c, struct dt_info *dti,
/* skip over 0x for next test */
unitname += 2;
}
if (unitname[0] == '0' && isxdigit(unitname[1]))
if (unitname[0] == '0' && isxdigit((unsigned char)unitname[1]))
FAIL(c, dti, node, "unit name should not have leading 0s");
}
WARNING(unit_address_format, check_unit_address_format, NULL,
@ -1222,7 +1224,7 @@ static void check_avoid_unnecessary_addr_size(struct check *c, struct dt_info *d
if (!node->parent || node->addr_cells < 0 || node->size_cells < 0)
return;
if (get_property(node, "ranges") || !node->children)
if (get_property(node, "ranges") || get_property(node, "dma-ranges") || !node->children)
return;
for_each_child(node, child) {
@ -1232,7 +1234,7 @@ static void check_avoid_unnecessary_addr_size(struct check *c, struct dt_info *d
}
if (!has_reg)
FAIL(c, dti, node, "unnecessary #address-cells/#size-cells without \"ranges\" or child \"reg\" property");
FAIL(c, dti, node, "unnecessary #address-cells/#size-cells without \"ranges\", \"dma-ranges\" or child \"reg\" property");
}
WARNING(avoid_unnecessary_addr_size, check_avoid_unnecessary_addr_size, NULL, &avoid_default_addr_size);
@ -1465,7 +1467,7 @@ static void check_provider_cells_property(struct check *c,
struct dt_info *dti,
struct node *node)
{
struct provider *provider = c->data;
const struct provider *provider = c->data;
struct property *prop;
prop = get_property(node, provider->prop_name);
@ -1673,6 +1675,10 @@ static void check_interrupt_map(struct check *c,
parent_cellsize += propval_cell(cellprop);
cell += 1 + parent_cellsize;
if (cell > map_cells)
FAIL_PROP(c, dti, node, irq_map_prop,
"property size (%d) mismatch, expected %zu",
irq_map_prop->val.len, cell * sizeof(cell_t));
}
}
WARNING(interrupt_map, check_interrupt_map, NULL, &phandle_references, &addr_size_cells, &interrupt_provider);
@ -1765,6 +1771,11 @@ static void check_graph_nodes(struct check *c, struct dt_info *dti,
get_property(child, "remote-endpoint")))
continue;
/* The root node cannot be a port */
if (!node->parent) {
FAIL(c, dti, node, "root node contains endpoint node '%s', potentially misplaced remote-endpoint property", child->name);
continue;
}
node->bus = &graph_port_bus;
/* The parent of 'port' nodes can be either 'ports' or a device */
@ -1778,31 +1789,6 @@ static void check_graph_nodes(struct check *c, struct dt_info *dti,
}
WARNING(graph_nodes, check_graph_nodes, NULL);
static void check_graph_child_address(struct check *c, struct dt_info *dti,
struct node *node)
{
int cnt = 0;
struct node *child;
if (node->bus != &graph_ports_bus && node->bus != &graph_port_bus)
return;
for_each_child(node, child) {
struct property *prop = get_property(child, "reg");
/* No error if we have any non-zero unit address */
if (prop && propval_cell(prop) != 0)
return;
cnt++;
}
if (cnt == 1 && node->addr_cells != -1)
FAIL(c, dti, node, "graph node has single child node '%s', #address-cells/#size-cells are not necessary",
node->children->name);
}
WARNING(graph_child_address, check_graph_child_address, NULL, &graph_nodes);
static void check_graph_reg(struct check *c, struct dt_info *dti,
struct node *node)
{
@ -1893,6 +1879,31 @@ static void check_graph_endpoint(struct check *c, struct dt_info *dti,
}
WARNING(graph_endpoint, check_graph_endpoint, NULL, &graph_nodes);
static void check_graph_child_address(struct check *c, struct dt_info *dti,
struct node *node)
{
int cnt = 0;
struct node *child;
if (node->bus != &graph_ports_bus && node->bus != &graph_port_bus)
return;
for_each_child(node, child) {
struct property *prop = get_property(child, "reg");
/* No error if we have any non-zero unit address */
if (prop && propval_cell(prop) != 0 )
return;
cnt++;
}
if (cnt == 1 && node->addr_cells != -1)
FAIL(c, dti, node, "graph node has single child node '%s', #address-cells/#size-cells are not necessary",
node->children->name);
}
WARNING(graph_child_address, check_graph_child_address, NULL, &graph_nodes, &graph_port, &graph_endpoint);
static struct check *check_table[] = {
&duplicate_node_names, &duplicate_property_names,
&node_name_chars, &node_name_format, &property_name_chars,

5
scripts/dtc/dtc-parser.y
View File

@ -284,14 +284,17 @@ propdef:
DT_PROPNODENAME '=' propdata ';'
{
$$ = build_property($1, $3, &@$);
free($1);
}
| DT_PROPNODENAME ';'
{
$$ = build_property($1, empty_data, &@$);
free($1);
}
| DT_DEL_PROP DT_PROPNODENAME ';'
{
$$ = build_property_delete($2);
free($2);
}
| DT_LABEL propdef
{
@ -570,10 +573,12 @@ subnode:
DT_PROPNODENAME nodedef
{
$$ = name_node($2, $1);
free($1);
}
| DT_DEL_NODE DT_PROPNODENAME ';'
{
$$ = name_node(build_node_delete(&@$), $2);
free($2);
}
| DT_OMIT_NO_REF subnode
{

9
scripts/dtc/dtc.c
View File

@ -47,7 +47,7 @@ static void fill_fullpaths(struct node *tree, const char *prefix)
/* Usage related data. */
static const char usage_synopsis[] = "dtc [options] <input file>";
static const char usage_short_opts[] = "qI:O:o:V:d:R:S:p:a:fb:i:H:sW:E:@AThv";
static const char usage_short_opts[] = "qI:O:o:V:d:R:S:p:a:fb:i:H:sW:E:@LAThv";
static struct option const usage_long_opts[] = {
{"quiet", no_argument, NULL, 'q'},
{"in-format", a_argument, NULL, 'I'},
@ -67,6 +67,7 @@ static struct option const usage_long_opts[] = {
{"warning", a_argument, NULL, 'W'},
{"error", a_argument, NULL, 'E'},
{"symbols", no_argument, NULL, '@'},
{"local-fixups", no_argument, NULL, 'L'},
{"auto-alias", no_argument, NULL, 'A'},
{"annotate", no_argument, NULL, 'T'},
{"help", no_argument, NULL, 'h'},
@ -104,6 +105,7 @@ static const char * const usage_opts_help[] = {
"\n\tEnable/disable warnings (prefix with \"no-\")",
"\n\tEnable/disable errors (prefix with \"no-\")",
"\n\tEnable generation of symbols",
"\n\tPossibly generates a __local_fixups__ and a __fixups__ node at the root node",
"\n\tEnable auto-alias of labels",
"\n\tAnnotate output .dts with input source file and line (-T -T for more details)",
"\n\tPrint this help and exit",
@ -252,6 +254,11 @@ int main(int argc, char *argv[])
case '@':
generate_symbols = 1;
break;
case 'L':
generate_fixups = 1;
break;
case 'A':
auto_label_aliases = 1;
break;

12
scripts/dtc/dtc.h
View File

@ -260,16 +260,16 @@ struct node {
void add_label(struct label **labels, char *label);
void delete_labels(struct label **labels);
struct property *build_property(char *name, struct data val,
struct property *build_property(const char *name, struct data val,
struct srcpos *srcpos);
struct property *build_property_delete(char *name);
struct property *build_property_delete(const char *name);
struct property *chain_property(struct property *first, struct property *list);
struct property *reverse_properties(struct property *first);
struct node *build_node(struct property *proplist, struct node *children,
struct srcpos *srcpos);
struct node *build_node_delete(struct srcpos *srcpos);
struct node *name_node(struct node *node, char *name);
struct node *name_node(struct node *node, const char *name);
struct node *omit_node_if_unused(struct node *node);
struct node *reference_node(struct node *node);
struct node *chain_node(struct node *first, struct node *list);
@ -336,9 +336,9 @@ struct dt_info *build_dt_info(unsigned int dtsflags,
struct reserve_info *reservelist,
struct node *tree, uint32_t boot_cpuid_phys);
void sort_tree(struct dt_info *dti);
void generate_label_tree(struct dt_info *dti, char *name, bool allocph);
void generate_fixups_tree(struct dt_info *dti, char *name);
void generate_local_fixups_tree(struct dt_info *dti, char *name);
void generate_label_tree(struct dt_info *dti, const char *name, bool allocph);
void generate_fixups_tree(struct dt_info *dti, const char *name);
void generate_local_fixups_tree(struct dt_info *dti, const char *name);
/* Checks */

6
scripts/dtc/fdtoverlay.c
View File

@ -23,9 +23,7 @@
/* Usage related data. */
static const char usage_synopsis[] =
"apply a number of overlays to a base blob\n"
" fdtoverlay <options> [<overlay.dtbo> [<overlay.dtbo>]]\n"
"\n"
USAGE_TYPE_MSG;
" fdtoverlay <options> [<overlay.dtbo> [<overlay.dtbo>]]";
static const char usage_short_opts[] = "i:o:v" USAGE_COMMON_SHORT_OPTS;
static struct option const usage_long_opts[] = {
{"input", required_argument, NULL, 'i'},
@ -50,7 +48,7 @@ static void *apply_one(char *base, const char *overlay, size_t *buf_len,
int ret;
/*
* We take a copies first, because a a failed apply can trash
* We take a copies first, because a failed apply can trash
* both the base blob and the overlay
*/
tmpo = xmalloc(fdt_totalsize(overlay));

21
scripts/dtc/flattree.c
View File

@ -604,11 +604,11 @@ static void flat_realign(struct inbuf *inb, int align)
die("Premature end of data parsing flat device tree\n");
}
static char *flat_read_string(struct inbuf *inb)
static const char *flat_read_string(struct inbuf *inb)
{
int len = 0;
const char *p = inb->ptr;
char *str;
const char *str;
do {
if (p >= inb->limit)
@ -616,7 +616,7 @@ static char *flat_read_string(struct inbuf *inb)
len++;
} while ((*p++) != '\0');
str = xstrdup(inb->ptr);
str = inb->ptr;
inb->ptr += len;
@ -711,7 +711,7 @@ static struct reserve_info *flat_read_mem_reserve(struct inbuf *inb)
}
static char *nodename_from_path(const char *ppath, const char *cpath)
static const char *nodename_from_path(const char *ppath, const char *cpath)
{
int plen;
@ -725,7 +725,7 @@ static char *nodename_from_path(const char *ppath, const char *cpath)
if (!streq(ppath, "/"))
plen++;
return xstrdup(cpath + plen);
return cpath + plen;
}
static struct node *unflatten_tree(struct inbuf *dtbuf,
@ -733,7 +733,7 @@ static struct node *unflatten_tree(struct inbuf *dtbuf,
const char *parent_flatname, int flags)
{
struct node *node;
char *flatname;
const char *flatname;
uint32_t val;
node = build_node(NULL, NULL, NULL);
@ -741,9 +741,10 @@ static struct node *unflatten_tree(struct inbuf *dtbuf,
flatname = flat_read_string(dtbuf);
if (flags & FTF_FULLPATH)
node->name = nodename_from_path(parent_flatname, flatname);
node->name = xstrdup(nodename_from_path(parent_flatname,
flatname));
else
node->name = flatname;
node->name = xstrdup(flatname);
do {
struct property *prop;
@ -785,10 +786,6 @@ static struct node *unflatten_tree(struct inbuf *dtbuf,
}
} while (val != FDT_END_NODE);
if (node->name != flatname) {
free(flatname);
}
return node;
}

2
scripts/dtc/fstree.c
View File

@ -43,7 +43,7 @@ static struct node *read_fstree(const char *dirname)
"WARNING: Cannot open %s: %s\n",
tmpname, strerror(errno));
} else {
prop = build_property(xstrdup(de->d_name),
prop = build_property(de->d_name,
data_copy_file(pfile,
st.st_size),
NULL);

349
scripts/dtc/libfdt/fdt_overlay.c
View File

@ -101,26 +101,22 @@ int fdt_overlay_target_offset(const void *fdt, const void *fdto,
static int overlay_phandle_add_offset(void *fdt, int node,
const char *name, uint32_t delta)
{
const fdt32_t *val;
uint32_t adj_val;
fdt32_t *valp, val;
int len;
val = fdt_getprop(fdt, node, name, &len);
if (!val)
valp = fdt_getprop_w(fdt, node, name, &len);
if (!valp)
return len;
if (len != sizeof(*val))
if (len != sizeof(val))
return -FDT_ERR_BADPHANDLE;
adj_val = fdt32_to_cpu(*val);
if ((adj_val + delta) < adj_val)
val = fdt32_ld(valp);
if (val + delta < val || val + delta == (uint32_t)-1)
return -FDT_ERR_NOPHANDLES;
adj_val += delta;
if (adj_val == (uint32_t)-1)
return -FDT_ERR_NOPHANDLES;
return fdt_setprop_inplace_u32(fdt, node, name, adj_val);
fdt32_st(valp, val + delta);
return 0;
}
/**
@ -213,8 +209,8 @@ static int overlay_update_local_node_references(void *fdto,
fdt_for_each_property_offset(fixup_prop, fdto, fixup_node) {
const fdt32_t *fixup_val;
const char *tree_val;
const char *name;
char *tree_val;
int fixup_len;
int tree_len;
int i;
@ -228,7 +224,7 @@ static int overlay_update_local_node_references(void *fdto,
return -FDT_ERR_BADOVERLAY;
fixup_len /= sizeof(uint32_t);
tree_val = fdt_getprop(fdto, tree_node, name, &tree_len);
tree_val = fdt_getprop_w(fdto, tree_node, name, &tree_len);
if (!tree_val) {
if (tree_len == -FDT_ERR_NOTFOUND)
return -FDT_ERR_BADOVERLAY;
@ -237,33 +233,15 @@ static int overlay_update_local_node_references(void *fdto,
}
for (i = 0; i < fixup_len; i++) {
fdt32_t adj_val;
uint32_t poffset;
fdt32_t *refp;
poffset = fdt32_to_cpu(fixup_val[i]);
refp = (fdt32_t *)(tree_val + fdt32_ld_(fixup_val + i));
/*
* phandles to fixup can be unaligned.
*
* Use a memcpy for the architectures that do
* not support unaligned accesses.
* phandles to fixup can be unaligned, so use
* fdt32_{ld,st}() to read/write them.
*/
memcpy(&adj_val, tree_val + poffset, sizeof(adj_val));
adj_val = cpu_to_fdt32(fdt32_to_cpu(adj_val) + delta);
ret = fdt_setprop_inplace_namelen_partial(fdto,
tree_node,
name,
strlen(name),
poffset,
&adj_val,
sizeof(adj_val));
if (ret == -FDT_ERR_NOSPACE)
return -FDT_ERR_BADOVERLAY;
if (ret)
return ret;
fdt32_st(refp, fdt32_ld(refp) + delta);
}
}
@ -337,7 +315,7 @@ static int overlay_update_local_references(void *fdto, uint32_t delta)
* @name: Name of the property holding the phandle reference in the overlay
* @name_len: number of name characters to consider
* @poffset: Offset within the overlay property where the phandle is stored
* @label: Label of the node referenced by the phandle
* @phandle: Phandle referencing the node
*
* overlay_fixup_one_phandle() resolves an overlay phandle pointing to
* a node in the base device tree.
@ -354,30 +332,14 @@ static int overlay_fixup_one_phandle(void *fdt, void *fdto,
int symbols_off,
const char *path, uint32_t path_len,
const char *name, uint32_t name_len,
int poffset, const char *label)
int poffset, uint32_t phandle)
{
const char *symbol_path;
uint32_t phandle;
fdt32_t phandle_prop;
int symbol_off, fixup_off;
int prop_len;
int fixup_off;
if (symbols_off < 0)
return symbols_off;
symbol_path = fdt_getprop(fdt, symbols_off, label,
&prop_len);
if (!symbol_path)
return prop_len;
symbol_off = fdt_path_offset(fdt, symbol_path);
if (symbol_off < 0)
return symbol_off;
phandle = fdt_get_phandle(fdt, symbol_off);
if (!phandle)
return -FDT_ERR_NOTFOUND;
fixup_off = fdt_path_offset_namelen(fdto, path, path_len);
if (fixup_off == -FDT_ERR_NOTFOUND)
return -FDT_ERR_BADOVERLAY;
@ -416,6 +378,10 @@ static int overlay_fixup_phandle(void *fdt, void *fdto, int symbols_off,
const char *value;
const char *label;
int len;
const char *symbol_path;
int prop_len;
int symbol_off;
uint32_t phandle;
value = fdt_getprop_by_offset(fdto, property,
&label, &len);
@ -426,6 +392,18 @@ static int overlay_fixup_phandle(void *fdt, void *fdto, int symbols_off,
return len;
}
symbol_path = fdt_getprop(fdt, symbols_off, label, &prop_len);
if (!symbol_path)
return prop_len;
symbol_off = fdt_path_offset(fdt, symbol_path);
if (symbol_off < 0)
return symbol_off;
phandle = fdt_get_phandle(fdt, symbol_off);
if (!phandle)
return -FDT_ERR_NOTFOUND;
do {
const char *path, *name, *fixup_end;
const char *fixup_str = value;
@ -467,7 +445,7 @@ static int overlay_fixup_phandle(void *fdt, void *fdto, int symbols_off,
ret = overlay_fixup_one_phandle(fdt, fdto, symbols_off,
path, path_len, name, name_len,
poffset, label);
poffset, phandle);
if (ret)
return ret;
} while (len > 0);
@ -520,6 +498,255 @@ static int overlay_fixup_phandles(void *fdt, void *fdto)
return 0;
}
/**
* overlay_adjust_local_conflicting_phandle: Changes a phandle value
* @fdto: Device tree overlay
* @node: The node the phandle is set for
* @fdt_phandle: The new value for the phandle
*
* returns:
* 0 on success
* Negative error code on failure
*/
static int overlay_adjust_local_conflicting_phandle(void *fdto, int node,
uint32_t fdt_phandle)
{
const fdt32_t *php;
int len, ret;
php = fdt_getprop(fdto, node, "phandle", &len);
if (php && len == sizeof(*php)) {
ret = fdt_setprop_inplace_u32(fdto, node, "phandle", fdt_phandle);
if (ret)
return ret;
}
php = fdt_getprop(fdto, node, "linux,phandle", &len);
if (php && len == sizeof(*php)) {
ret = fdt_setprop_inplace_u32(fdto, node, "linux,phandle", fdt_phandle);
if (ret)
return ret;
}
return 0;
}
/**
* overlay_update_node_conflicting_references - Recursively replace phandle values
* @fdto: Device tree overlay blob
* @tree_node: Node to recurse into
* @fixup_node: Node offset of the matching local fixups node
* @fdt_phandle: Value to replace phandles with
* @fdto_phandle: Value to be replaced
*
* Replaces all phandles with value @fdto_phandle by @fdt_phandle.
*
* returns:
* 0 on success
* Negative error code on failure
*/
static int overlay_update_node_conflicting_references(void *fdto, int tree_node,
int fixup_node,
uint32_t fdt_phandle,
uint32_t fdto_phandle)
{
int fixup_prop;
int fixup_child;
int ret;
fdt_for_each_property_offset(fixup_prop, fdto, fixup_node) {
const fdt32_t *fixup_val;
const char *name;
char *tree_val;
int fixup_len;
int tree_len;
int i;
fixup_val = fdt_getprop_by_offset(fdto, fixup_prop,
&name, &fixup_len);
if (!fixup_val)
return fixup_len;
if (fixup_len % sizeof(uint32_t))
return -FDT_ERR_BADOVERLAY;
fixup_len /= sizeof(uint32_t);
tree_val = fdt_getprop_w(fdto, tree_node, name, &tree_len);
if (!tree_val) {
if (tree_len == -FDT_ERR_NOTFOUND)
return -FDT_ERR_BADOVERLAY;
return tree_len;
}
for (i = 0; i < fixup_len; i++) {
fdt32_t *refp;
uint32_t valp;
refp = (fdt32_t *)(tree_val + fdt32_ld_(fixup_val + i));
valp = fdt32_ld(refp);
if (valp == fdto_phandle)
fdt32_st(refp, fdt_phandle);
}
}
fdt_for_each_subnode(fixup_child, fdto, fixup_node) {
const char *fixup_child_name = fdt_get_name(fdto, fixup_child, NULL);
int tree_child;
tree_child = fdt_subnode_offset(fdto, tree_node, fixup_child_name);
if (tree_child == -FDT_ERR_NOTFOUND)
return -FDT_ERR_BADOVERLAY;
if (tree_child < 0)
return tree_child;
ret = overlay_update_node_conflicting_references(fdto, tree_child,
fixup_child,
fdt_phandle,
fdto_phandle);
if (ret)
return ret;
}
return 0;
}
/**
* overlay_update_local_conflicting_references - Recursively replace phandle values
* @fdto: Device tree overlay blob
* @fdt_phandle: Value to replace phandles with
* @fdto_phandle: Value to be replaced
*
* Replaces all phandles with value @fdto_phandle by @fdt_phandle.
*
* returns:
* 0 on success
* Negative error code on failure
*/
static int overlay_update_local_conflicting_references(void *fdto,
uint32_t fdt_phandle,
uint32_t fdto_phandle)
{
int fixups;
fixups = fdt_path_offset(fdto, "/__local_fixups__");
if (fixups == -FDT_ERR_NOTFOUND)
return 0;
if (fixups < 0)
return fixups;
return overlay_update_node_conflicting_references(fdto, 0, fixups,
fdt_phandle,
fdto_phandle);
}
/**
* overlay_prevent_phandle_overwrite_node - Helper function for overlay_prevent_phandle_overwrite
* @fdt: Base Device tree blob
* @fdtnode: Node in fdt that is checked for an overwrite
* @fdto: Device tree overlay blob
* @fdtonode: Node in fdto matching @fdtnode
*
* returns:
* 0 on success
* Negative error code on failure
*/
static int overlay_prevent_phandle_overwrite_node(void *fdt, int fdtnode,
void *fdto, int fdtonode)
{
uint32_t fdt_phandle, fdto_phandle;
int fdtochild;
fdt_phandle = fdt_get_phandle(fdt, fdtnode);
fdto_phandle = fdt_get_phandle(fdto, fdtonode);
if (fdt_phandle && fdto_phandle) {
int ret;
ret = overlay_adjust_local_conflicting_phandle(fdto, fdtonode,
fdt_phandle);
if (ret)
return ret;
ret = overlay_update_local_conflicting_references(fdto,
fdt_phandle,
fdto_phandle);
if (ret)
return ret;
}
fdt_for_each_subnode(fdtochild, fdto, fdtonode) {
const char *name = fdt_get_name(fdto, fdtochild, NULL);
int fdtchild;
int ret;
fdtchild = fdt_subnode_offset(fdt, fdtnode, name);
if (fdtchild == -FDT_ERR_NOTFOUND)
/*
* no further overwrites possible here as this node is
* new
*/
continue;
ret = overlay_prevent_phandle_overwrite_node(fdt, fdtchild,
fdto, fdtochild);
if (ret)
return ret;
}
return 0;
}
/**
* overlay_prevent_phandle_overwrite - Fixes overlay phandles to not overwrite base phandles
* @fdt: Base Device Tree blob
* @fdto: Device tree overlay blob
*
* Checks recursively if applying fdto overwrites phandle values in the base
* dtb. When such a phandle is found, the fdto is changed to use the fdt's
* phandle value to not break references in the base.
*
* returns:
* 0 on success
* Negative error code on failure
*/
static int overlay_prevent_phandle_overwrite(void *fdt, void *fdto)
{
int fragment;
fdt_for_each_subnode(fragment, fdto, 0) {
int overlay;
int target;
int ret;
overlay = fdt_subnode_offset(fdto, fragment, "__overlay__");
if (overlay == -FDT_ERR_NOTFOUND)
continue;
if (overlay < 0)
return overlay;
target = fdt_overlay_target_offset(fdt, fdto, fragment, NULL);
if (target == -FDT_ERR_NOTFOUND)
/*
* The subtree doesn't exist in the base, so nothing
* will be overwritten.
*/
continue;
else if (target < 0)
return target;
ret = overlay_prevent_phandle_overwrite_node(fdt, target,
fdto, overlay);
if (ret)
return ret;
}
return 0;
}
/**
* overlay_apply_node - Merges a node into the base device tree
* @fdt: Base Device Tree blob
@ -824,18 +1051,26 @@ int fdt_overlay_apply(void *fdt, void *fdto)
if (ret)
goto err;
/* Increase all phandles in the fdto by delta */
ret = overlay_adjust_local_phandles(fdto, delta);
if (ret)
goto err;
/* Adapt the phandle values in fdto to the above increase */
ret = overlay_update_local_references(fdto, delta);
if (ret)
goto err;
/* Update fdto's phandles using symbols from fdt */
ret = overlay_fixup_phandles(fdt, fdto);
if (ret)
goto err;
/* Don't overwrite phandles in fdt */
ret = overlay_prevent_phandle_overwrite(fdt, fdto);
if (ret)
goto err;
ret = overlay_merge(fdt, fdto);
if (ret)
goto err;

37
scripts/dtc/libfdt/fdt_ro.c
View File

@ -255,6 +255,9 @@ int fdt_path_offset_namelen(const void *fdt, const char *path, int namelen)
FDT_RO_PROBE(fdt);
if (!can_assume(VALID_INPUT) && namelen <= 0)
return -FDT_ERR_BADPATH;
/* see if we have an alias */
if (*path != '/') {
const char *q = memchr(path, '/', end - p);
@ -522,16 +525,31 @@ uint32_t fdt_get_phandle(const void *fdt, int nodeoffset)
return fdt32_ld_(php);
}
static const void *fdt_path_getprop_namelen(const void *fdt, const char *path,
const char *propname, int propnamelen,
int *lenp)
{
int offset = fdt_path_offset(fdt, path);
if (offset < 0)
return NULL;
return fdt_getprop_namelen(fdt, offset, propname, propnamelen, lenp);
}
const char *fdt_get_alias_namelen(const void *fdt,
const char *name, int namelen)
{
int aliasoffset;
int len;
const char *alias;
aliasoffset = fdt_path_offset(fdt, "/aliases");
if (aliasoffset < 0)
alias = fdt_path_getprop_namelen(fdt, "/aliases", name, namelen, &len);
if (!can_assume(VALID_DTB) &&
!(alias && len > 0 && alias[len - 1] == '\0' && *alias == '/'))
return NULL;
return fdt_getprop_namelen(fdt, aliasoffset, name, namelen, NULL);
return alias;
}
const char *fdt_get_alias(const void *fdt, const char *name)
@ -539,6 +557,17 @@ const char *fdt_get_alias(const void *fdt, const char *name)
return fdt_get_alias_namelen(fdt, name, strlen(name));
}
const char *fdt_get_symbol_namelen(const void *fdt,
const char *name, int namelen)
{
return fdt_path_getprop_namelen(fdt, "/__symbols__", name, namelen, NULL);
}
const char *fdt_get_symbol(const void *fdt, const char *name)
{
return fdt_get_symbol_namelen(fdt, name, strlen(name));
}
int fdt_get_path(const void *fdt, int nodeoffset, char *buf, int buflen)
{
int pdepth = 0, p = 0;

67
scripts/dtc/libfdt/libfdt.h
View File

@ -524,10 +524,35 @@ int fdt_path_offset_namelen(const void *fdt, const char *path, int namelen);
* level matching the given component, differentiated only by unit
* address).
*
* If the path is not absolute (i.e. does not begin with '/'), the
* first component is treated as an alias. That is, the property by
* that name is looked up in the /aliases node, and the value of that
* property used in place of that first component.
*
* For example, for this small fragment
*
* / {
* aliases {
* i2c2 = &foo; // RHS compiles to "/soc@0/i2c@30a40000/eeprom@52"
* };
* soc@0 {
* foo: i2c@30a40000 {
* bar: eeprom@52 {
* };
* };
* };
* };
*
* these would be equivalent:
*
* /soc@0/i2c@30a40000/eeprom@52
* i2c2/eeprom@52
*
* returns:
* structure block offset of the node with the requested path (>=0), on
* success
* -FDT_ERR_BADPATH, given path does not begin with '/' or is invalid
* -FDT_ERR_BADPATH, given path does not begin with '/' and the first
* component is not a valid alias
* -FDT_ERR_NOTFOUND, if the requested node does not exist
* -FDT_ERR_BADMAGIC,
* -FDT_ERR_BADVERSION,
@ -869,6 +894,42 @@ const char *fdt_get_alias_namelen(const void *fdt,
*/
const char *fdt_get_alias(const void *fdt, const char *name);
/**
* fdt_get_symbol_namelen - get symbol based on substring
* @fdt: pointer to the device tree blob
* @name: name of the symbol to look up
* @namelen: number of characters of name to consider
*
* Identical to fdt_get_symbol(), but only examine the first @namelen
* characters of @name for matching the symbol name.
*
* Return: a pointer to the expansion of the symbol named @name, if it exists,
* NULL otherwise
*/
#ifndef SWIG /* Not available in Python */
const char *fdt_get_symbol_namelen(const void *fdt,
const char *name, int namelen);
#endif
/**
* fdt_get_symbol - retrieve the path referenced by a given symbol
* @fdt: pointer to the device tree blob
* @name: name of the symbol to look up
*
* fdt_get_symbol() retrieves the value of a given symbol. That is,
* the value of the property named @name in the node
* /__symbols__. Such a node exists only for a device tree blob that
* has been compiled with the -@ dtc option. Each property corresponds
* to a label appearing in the device tree source, with the name of
* the property being the label and the value being the full path of
* the node it is attached to.
*
* returns:
* a pointer to the expansion of the symbol named 'name', if it exists
* NULL, if the given symbol or the /__symbols__ node does not exist
*/
const char *fdt_get_symbol(const void *fdt, const char *name);
/**
* fdt_get_path - determine the full path of a node
* @fdt: pointer to the device tree blob
@ -1450,7 +1511,7 @@ int fdt_nop_node(void *fdt, int nodeoffset);
* fdt_create_with_flags() begins the process of creating a new fdt with
* the sequential write interface.
*
* fdt creation process must end with fdt_finished() to produce a valid fdt.
* fdt creation process must end with fdt_finish() to produce a valid fdt.
*
* returns:
* 0, on success
@ -1968,7 +2029,7 @@ static inline int fdt_appendprop_cell(void *fdt, int nodeoffset,
* address and size) to the value of the named property in the given
* node, or creates a new property with that value if it does not
* already exist.
* If "name" is not specified, a default "reg" is used.
*
* Cell sizes are determined by parent's #address-cells and #size-cells.
*
* This function may insert data into the blob, and will therefore

56
scripts/dtc/livetree.c
View File

@ -36,27 +36,27 @@ void delete_labels(struct label **labels)
label->deleted = 1;
}
struct property *build_property(char *name, struct data val,
struct property *build_property(const char *name, struct data val,
struct srcpos *srcpos)
{
struct property *new = xmalloc(sizeof(*new));
memset(new, 0, sizeof(*new));
new->name = name;
new->name = xstrdup(name);
new->val = val;
new->srcpos = srcpos_copy(srcpos);
return new;
}
struct property *build_property_delete(char *name)
struct property *build_property_delete(const char *name)
{
struct property *new = xmalloc(sizeof(*new));
memset(new, 0, sizeof(*new));
new->name = name;
new->name = xstrdup(name);
new->deleted = 1;
return new;
@ -116,11 +116,11 @@ struct node *build_node_delete(struct srcpos *srcpos)
return new;
}
struct node *name_node(struct node *node, char *name)
struct node *name_node(struct node *node, const char *name)
{
assert(node->name == NULL);
node->name = name;
node->name = xstrdup(name);
return node;
}
@ -250,6 +250,7 @@ struct node * add_orphan_node(struct node *dt, struct node *new_node, char *ref)
name_node(new_node, "__overlay__");
node = build_node(p, new_node, NULL);
name_node(node, name);
free(name);
add_child(dt, node);
return dt;
@ -440,7 +441,7 @@ cell_t propval_cell(struct property *prop)
cell_t propval_cell_n(struct property *prop, unsigned int n)
{
assert(prop->val.len / sizeof(cell_t) >= n);
assert(prop->val.len / sizeof(cell_t) > n);
return fdt32_to_cpu(*((fdt32_t *)prop->val.val + n));
}
@ -616,10 +617,25 @@ struct node *get_node_by_ref(struct node *tree, const char *ref)
return target;
}
static void add_phandle_property(struct node *node,
const char *name, int format)
{
struct data d;
if (!(phandle_format & format))
return;
if (get_property(node, name))
return;
d = data_add_marker(empty_data, TYPE_UINT32, NULL);
d = data_append_cell(d, node->phandle);
add_property(node, build_property(name, d, NULL));
}
cell_t get_node_phandle(struct node *root, struct node *node)
{
static cell_t phandle = 1; /* FIXME: ick, static local */
struct data d = empty_data;
if (phandle_is_valid(node->phandle))
return node->phandle;
@ -629,16 +645,8 @@ cell_t get_node_phandle(struct node *root, struct node *node)
node->phandle = phandle;
d = data_add_marker(d, TYPE_UINT32, NULL);
d = data_append_cell(d, phandle);
if (!get_property(node, "linux,phandle")
&& (phandle_format & PHANDLE_LEGACY))
add_property(node, build_property("linux,phandle", d, NULL));
if (!get_property(node, "phandle")
&& (phandle_format & PHANDLE_EPAPR))
add_property(node, build_property("phandle", d, NULL));
add_phandle_property(node, "linux,phandle", PHANDLE_LEGACY);
add_phandle_property(node, "phandle", PHANDLE_EPAPR);
/* If the node *does* have a phandle property, we must
* be dealing with a self-referencing phandle, which will be
@ -808,18 +816,18 @@ void sort_tree(struct dt_info *dti)
}
/* utility helper to avoid code duplication */
static struct node *build_and_name_child_node(struct node *parent, char *name)
static struct node *build_and_name_child_node(struct node *parent, const char *name)
{
struct node *node;
node = build_node(NULL, NULL, NULL);
name_node(node, xstrdup(name));
name_node(node, name);
add_child(parent, node);
return node;
}
static struct node *build_root_node(struct node *dt, char *name)
static struct node *build_root_node(struct node *dt, const char *name)
{
struct node *an;
@ -1040,7 +1048,7 @@ static void generate_local_fixups_tree_internal(struct dt_info *dti,
generate_local_fixups_tree_internal(dti, lfn, c);
}
void generate_label_tree(struct dt_info *dti, char *name, bool allocph)
void generate_label_tree(struct dt_info *dti, const char *name, bool allocph)
{
if (!any_label_tree(dti, dti->dt))
return;
@ -1048,7 +1056,7 @@ void generate_label_tree(struct dt_info *dti, char *name, bool allocph)
dti->dt, allocph);
}
void generate_fixups_tree(struct dt_info *dti, char *name)
void generate_fixups_tree(struct dt_info *dti, const char *name)
{
if (!any_fixup_tree(dti, dti->dt))
return;
@ -1056,7 +1064,7 @@ void generate_fixups_tree(struct dt_info *dti, char *name)
dti->dt);
}
void generate_local_fixups_tree(struct dt_info *dti, char *name)
void generate_local_fixups_tree(struct dt_info *dti, const char *name)
{
if (!any_local_fixup_tree(dti, dti->dt))
return;

14
scripts/dtc/srcpos.c
View File

@ -3,7 +3,9 @@
* Copyright 2007 Jon Loeliger, Freescale Semiconductor, Inc.
*/
#ifndef _GNU_SOURCE
#define _GNU_SOURCE
#endif
#include <stdio.h>
@ -311,8 +313,8 @@ srcpos_string(struct srcpos *pos)
static char *
srcpos_string_comment(struct srcpos *pos, bool first_line, int level)
{
char *pos_str, *fname, *first, *rest;
bool fresh_fname = false;
char *pos_str, *fresh_fname = NULL, *first, *rest;
const char *fname;
if (!pos) {
if (level > 1) {
@ -330,9 +332,9 @@ srcpos_string_comment(struct srcpos *pos, bool first_line, int level)
else if (level > 1)
fname = pos->file->name;
else {
fname = shorten_to_initial_path(pos->file->name);
if (fname)
fresh_fname = true;
fresh_fname = shorten_to_initial_path(pos->file->name);
if (fresh_fname)
fname = fresh_fname;
else
fname = pos->file->name;
}
@ -346,7 +348,7 @@ srcpos_string_comment(struct srcpos *pos, bool first_line, int level)
first_line ? pos->first_line : pos->last_line);
if (fresh_fname)
free(fname);
free(fresh_fname);
if (pos->next != NULL) {
rest = srcpos_string_comment(pos->next, first_line, level);

26
scripts/dtc/treesource.c
View File

@ -139,6 +139,28 @@ static const char *delim_end[] = {
[TYPE_STRING] = "",
};
static void add_string_markers(struct property *prop)
{
int l, len = prop->val.len;
const char *p = prop->val.val;
for (l = strlen(p) + 1; l < len; l += strlen(p + l) + 1) {
struct marker *m, **nextp;
m = xmalloc(sizeof(*m));
m->offset = l;
m->type = TYPE_STRING;
m->ref = NULL;
m->next = NULL;
/* Find the end of the markerlist */
nextp = &prop->val.markers;
while (*nextp)
nextp = &((*nextp)->next);
*nextp = m;
}
}
static enum markertype guess_value_type(struct property *prop)
{
int len = prop->val.len;
@ -164,6 +186,8 @@ static enum markertype guess_value_type(struct property *prop)
if ((p[len-1] == '\0') && (nnotstring == 0) && (nnul <= (len-nnul))
&& (nnotstringlbl == 0)) {
if (nnul > 1)
add_string_markers(prop);
return TYPE_STRING;
} else if (((len % sizeof(cell_t)) == 0) && (nnotcelllbl == 0)) {
return TYPE_UINT32;
@ -241,6 +265,8 @@ static void write_propval(FILE *f, struct property *prop)
} else {
write_propval_int(f, p, chunk_len, 4);
}
if (data_len > chunk_len)
fputc(' ', f);
break;
case TYPE_UINT64:
write_propval_int(f, p, chunk_len, 8);

6
scripts/dtc/util.h
View File

@ -13,7 +13,9 @@
*/
#ifdef __GNUC__
#if __GNUC__ >= 5 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 4)
#ifdef __MINGW_PRINTF_FORMAT
#define PRINTF(i, j) __attribute__((format (__MINGW_PRINTF_FORMAT, i, j)))
#elif __GNUC__ >= 5 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 4)
#define PRINTF(i, j) __attribute__((format (gnu_printf, i, j)))
#else
#define PRINTF(i, j) __attribute__((format (printf, i, j)))
@ -65,7 +67,7 @@ extern char *xstrndup(const char *s, size_t len);
extern int PRINTF(2, 3) xasprintf(char **strp, const char *fmt, ...);
extern int PRINTF(2, 3) xasprintf_append(char **strp, const char *fmt, ...);
extern int xavsprintf_append(char **strp, const char *fmt, va_list ap);
extern int PRINTF(2, 0) xavsprintf_append(char **strp, const char *fmt, va_list ap);
extern char *join_path(const char *path, const char *name);
/**

2
scripts/dtc/version_gen.h
View File

@ -1 +1 @@
#define DTC_VERSION "DTC 1.6.1-gabbd523b"
#define DTC_VERSION "DTC 1.7.0-g1df7b047"