scripts/dtc: Update to upstream version v1.7.2-62-ga26ef6400bd8

This adds the following commits from upstream:

a26ef6400bd8 Restore phandle references from __fixups__ node
05c524db44ff Restore phandle references from __local_fixups__ node
db65a3a3f4f0 Restore labels from __symbols__ node
64330c682cac Improve type guessing when compiling to dts format
cbb48690c697 Set DTSF_PLUGIN if needed when compiling from dtb
ef3b1baf6370 Emit /plugin/ when compiling to .dts with DTSF_PLUGIN set
7c78c8542d73 Added empty node name check
14dd76b96732 fdtdump: Change FDT_PROP prob handling to ease future addition
9a1c801a1a3c Fix discarded const qualifiers
194ac9422ac9 libfdt: fdt_get_name: Add can_assume(VALID_DTB) check
39cae0bd0031 libfdt: Improve size savings in FDT_RO_PROBE slightly
b12692473298 libfdt: libfdt_internal.h correct final comment in ASSUME block
7f3184a6c550 libfdt: Remove old MacOS strnlen workaround
9197f1ccd95c checks: Do not check overlays for alias paths
e1284ee5dc20 livetree: Add only new data to fixup nodes instead of complete regeneration
cba90ce82064 checks: Remove check for graph child addresses
763c6ab4189c livetree: Simplify append_to_property()
739403f22242 libfdt: Drop including string.h from libfdt_internal.h
1c6c51e51b29 Consider drive letters when checking for absolute paths on Windows.
617f3d9b60f7 ci: Add Cirrus CI configuration for FreeBSD testing
04f948e83fef ci: Add GitLab CI configuration for Linux builds
e89680263137 ci: Tweaks to GitHub Actions setup
2ad738722b79 build: Add FreeBSD and non-GNU linker compatibility
4132ac08ba95 libfdt: Document most remaining functions
33e66ec845b8 tests: Add compatibility with uutils
a0dd7b608102 fdtput: Use strtol() in preference to sscanf()
5b71660724d7 tests: Work around limitation in FreeBSD's printf(1)

The graph_child_address check has been removed from upstream. Drop it
from the makefiles.

Signed-off-by: Rob Herring (Arm) <robh@kernel.org>

1 files changed, 21 insertions, 1 deletions

diff --git a/scripts/dtc/srcpos.c b/scripts/dtc/srcpos.c
index 5bb57bf6856c..fef892fb6fdd 100644
--- a/scripts/dtc/srcpos.c
+++ b/scripts/dtc/srcpos.c
@@ -89,6 +89,26 @@ static char *shorten_to_initial_path(char *fname)
 }
 
 /**
+ * Returns true if the given path is an absolute one.
+ *
+ * On Windows, it either needs to begin with a forward slash or with a drive
+ * letter (e.g. "C:").
+ * On all other operating systems, it must begin with a forward slash to be
+ * considered an absolute path.
+ */
+static bool is_absolute_path(const char *path)
+{
+#ifdef WIN32
+	return (
+		path[0] == '/' ||
+		(((path[0] >= 'A' && path[0] <= 'Z') || (path[0] >= 'a' && path[0] <= 'z')) && path[1] == ':')
+	);
+#else
+	return (path[0] == '/');
+#endif
+}
+
+/**
  * Try to open a file in a given directory.
  *
  * If the filename is an absolute path, then dirname is ignored. If it is a
@@ -103,7 +123,7 @@ static char *try_open(const char *dirname, const char *fname, FILE **fp)
 {
 	char *fullname;
 
-	if (!dirname || fname[0] == '/')
+	if (!dirname || is_absolute_path(fname))
 		fullname = xstrdup(fname);
 	else
 		fullname = join_path(dirname, fname);