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Change-Id: I87bb85b03484086644d4898c641b3b2a459fad29
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Bug: 68860345
Bug: 69058154
Bug: 151953481
Test: no code changes
Change-Id: Iad5c32087e0680d82d6d98461155660b1f8d70b6
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Because of the convention of packed representations in property layouts,
it's not uncommon to have integer values in properties which aren't
naturally aligned. Thus, there are several places in the dtc code where we
cast a potentially unaligned byte pointer into an integer pointer and load
it directly. On a number of architectures (including sparc64 and arm) this
won't work and will cause a fault. In some cases it may be trapped and
emulated by the kernel, but not always.
Therefore, replace such direct unaligned reads with a helper which will
handle unaligned data reads (a variant on the fdtXX_ld() functions already
used in libfdt).
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
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In check_unit_address_vs_reg() warning message already says 'reg _or_
ranges' when reg or ranges are present but unit name is missing. Add
this message for compatibility to say "reg _or_ ranges" when unit name
is present but neither reg nor ranges are present.
Signed-off-by: Arkadiusz Drabczyk <arkadiusz@drabczyk.org>
Message-Id: <20200308165643.19281-1-arkadiusz@drabczyk.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
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libfdt: fix undefined behaviour in fdt_splice_()
Along the lines of commit d0b3ab0a0f46 ("libfdt: Fix undefined behaviour
in fdt_offset_ptr()"), fdt_splice_() similarly may not use pointer
arithmetic to do overflow checks. (The left side of the checks added by
d4c7c25c9ed1 ["libfdt: check for potential overrun in _fdt_splice()"]
doesn't really lend itself to similar replacement though.)
Signed-off-by: Jan Beulich <jbeulich@suse.com>
Message-Id: <f2d09e81-7cb8-c5cc-9699-1ac05b0626ff@suse.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
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We've accumulated some new features and a bunch of fixes. Also the
versioning on v1.5.1 was messed up :(. Prepare for another release.
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
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Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
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Currently the test runner script always expects to be run from within the
tests/ subdirectory of a dtc source tree: it looks for dtc and other
binaries in the parent of the current directory and for the libfdt shared
library in ../libfdt.
That works great with make check and for testing a build you've just made.
However, sometimes it's useful to test a dtc & libfdt which have already
been installed on the system, or which for whatever reason are located
somewhere else.
This patch allows the test runner script to do this when TEST_BINDIR and/or
TEST_LIBDIR environment variables are set.
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
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Support for YAML output in dtc is optional (to cover systems that don't
have libyaml). Currently the tests for yaml output test if the libyaml
package is locally installed.
That duplicates similar logic in the Makefile, and worse it will cause
failed tests if the user explicitly disables YAML support, rather than
simply not having libyaml installed.
Fix this by having the test script use the NO_YAML variable exported by
make. Fall back to the current test if the variable isn't set, such as
when running the script manually.
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
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One of our testcases creates a .bak file from invoking sed. Fix that to be
removed by make clean, and also ignore it in git to avoid clutter.
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
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Currently the test script bases whether to run the Python tests on whether
it can see a built Python module. That can easily be fooled if there is
a stale module there.
Instead, have it actually look at the NO_PYTHON variable exported from the
Makefile. If the variable doesn't exist (such as if we're running the
script manually) fall back on the old logic.
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
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We have several $(NO_*) variables used to disable optional features.
$(NO_PYTHON) is encoded as empty for "include Python support" and anything
else for "disable Python support".
However the other variables - $(NO_YAML) and $(NO_VALGRIND) - use 0 for
"include" and 1 for "disable". Change $(NO_PYTHON) to work consistently
with the others.
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
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Make automatically passes its variables through the environment, so
we don't need to explicitly copy this one into the test script.
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
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Currently run_tests.sh needs the $PYTHON environment variable set to
correctly run pylibfdt tests. The Makefile does this for make check, but
it breaks if the script is run manually. Add a fallback to handle that
case.
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
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Generalize the existing 'ranges' check to also work for 'dma-ranges'
which has the same parsing requirements.
Signed-off-by: Rob Herring <robh@kernel.org>
Message-Id: <20200303193931.1653-1-robh@kernel.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
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This error indicates a logic bug in the code calling libfdt, so VALID_DTB
is not really the right check. Update it to use VALID_INPUT instead.
Signed-off-by: Simon Glass <sjg@chromium.org>
Suggested-by: David Gibson <david@gibson.dropbear.id.au>
Message-Id: <20200302190255.51426-4-sjg@chromium.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
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If libfdt returns -FDT_ERR_INTERNAL that generally indicates a bug in the
library. Add a new assumption for these cases since it should be save to
disable these checks regardless of the input.
Signed-off-by: Simon Glass <sjg@chromium.org>
Suggested-by: David Gibson <david@gibson.dropbear.id.au>
Message-Id: <20200302190255.51426-3-sjg@chromium.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
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Add a little more detail in a few of these comments.
Signed-off-by: Simon Glass <sjg@chromium.org>
Suggested-by: David Gibson <david@gibson.dropbear.id.au>
Message-Id: <20200302190255.51426-2-sjg@chromium.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
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Fix 'saftey' and 'additional' typos noticed in the assumption series.
Reword the ASSUME_NO_ROLLBACK slightly to improve clarity.
Signed-off-by: Simon Glass <sjg@chromium.org>
Suggested-by: David Gibson <david@gibson.dropbear.id.au>
Message-Id: <20200302190255.51426-1-sjg@chromium.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
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This function is used to perform a full check of the device tree. Allow
it to be excluded if all assumptions are enabled.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Message-Id: <20200220214557.176528-9-sjg@chromium.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
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Add a way to remove this check and the reordering code, which is
unnecessary if the dtb is known to be correctly ordered.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Message-Id: <20200220214557.176528-8-sjg@chromium.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
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Allow enabling FDT_ASSUME_LATEST to disable version checks.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Message-Id: <20200220214557.176528-7-sjg@chromium.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
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Allow enabling FDT_ASSUME_NO_ROLLBACK to disable rolling back after a
failed operation.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Message-Id: <20200220214557.176528-6-sjg@chromium.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
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Allow enabling ASSUME_VALID_INPUT to disable sanity checks on the device
tree and the parameters to libfdt. This assumption covers that cases where
the problem could be with either.
Signed-off-by: Simon Glass <sjg@chromium.org>
Message-Id: <20200220214557.176528-5-sjg@chromium.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
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Support ASSUME_VALID_DTB to disable some sanity checks
If we assume that the DTB itself is valid then we can skip some checks and
save code space. Add various conditions to handle this.
Signed-off-by: Simon Glass <sjg@chromium.org>
Message-Id: <20200220214557.176528-4-sjg@chromium.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
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Add a new ASSUME_MASK option, which allows for some control over the
checks used in libfdt. With all assumptions enabled, libfdt assumes that
the input data and parameters are all correct and that internal errors
cannot happen.
By default no assumptions are made and all checks are enabled.
Signed-off-by: Simon Glass <sjg@chromium.org>
Message-Id: <20200220214557.176528-3-sjg@chromium.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
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There does not seem to be a strong reason to inline this function. Also
we are about to add some extra code to it which will increase its size.
Move it into fdt.c and use a simple declaration in libfdt.h
Signed-off-by: Simon Glass <sjg@chromium.org>
Message-Id: <20200220214557.176528-2-sjg@chromium.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
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This reverts commit 18d7b2f4ee45fec422b7d82bab0b3c762ee907e4.
This doesn't work for properties such as 'interrupt-map' that has
phandle in the middle of an entry. It would also not work for a 0 or -1
phandle value that acts as a NULL.
Signed-off-by: Rob Herring <robh@kernel.org>
Message-Id: <20200124144657.29749-1-robh@kernel.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
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gcc 10 will default to -fno-common, which causes this error at link
time:
(.text+0x0): multiple definition of `yylloc'; dtc-lexer.lex.o (symbol from plugin):(.text+0x0): first defined here
This is because both dtc-lexer as well as dtc-parser define the same
global symbol yyloc. Before with -fcommon those were merged into one
defintion. The proper solution would be to to mark this as "extern",
however that leads to:
dtc-lexer.l:26:16: error: redundant redeclaration of 'yylloc' [-Werror=redundant-decls]
26 | extern YYLTYPE yylloc;
| ^~~~~~
In file included from dtc-lexer.l:24:
dtc-parser.tab.h:127:16: note: previous declaration of 'yylloc' was here
127 | extern YYLTYPE yylloc;
| ^~~~~~
cc1: all warnings being treated as errors
which means the declaration is completely redundant and can just be
dropped.
Signed-off-by: Dirk Mueller <dmueller@suse.com>
Message-Id: <20200114175341.2994-1-dmueller@suse.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
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Since -D sets preprocessor directives, it applies for the preprocessor not
just the C compiler proper and so belongs in CPPFLAGS rather than CFLAGS.
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
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When Valgrind is not available NO_VALGRIND is set in CFLAGS, and this
is needed during dependency generation as well as compilation.
Message-Id: <20191210163033.9888-1-emaste@freefall.freebsd.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
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Travis recently added the possibility to compile on aarch64, ppc64le
and s390x hosts, so let's add this possibility to the dtc CI, too.
Unfortunately, there are some weird valgrind errors when running
on ppc64le (which rather look like a problem on the valgrind side to
me, and not in dtc), so we can not use "checkm" on ppc64le yet.
Signed-off-by: Thomas Huth <thuth@redhat.com>
Message-Id: <20191203122020.14442-1-thuth@redhat.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
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Right now this is just a build test for FreeBSD, along with a Linux build
and "make check." A later change will add "gmake check" for FreeBSD.
Signed-off-by: Ed Maste <emaste@freebsd.org>
Message-Id: <20191120211133.69281-1-emaste@freefall.freebsd.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
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Clang does not support gnu_printf, so just use printf when using it to
compile.
Signed-off-by: Ed Maste <emaste@freebsd.org>
Message-Id: <20191120210422.61327-1-emaste@freefall.freebsd.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
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By default FreeBSD does not have 'gcc' in the PATH (on common platforms).
As on Linux 'cc' is available as a link to the default compiler (Clang or
GCC), so just use 'cc'.
Signed-off-by: Ed Maste <emaste@freebsd.org>
Message-Id: <20191115155108.39488-1-emaste@freefall.freebsd.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
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If there is trailing zero, fdtget adds extra chacarter to the
property value. Thus comparing the expected with the actual
value, an error is emitted.
Signed-off-by: Stefan Mavrodiev <stefan@olimex.com>
Message-Id: <20191111080444.9819-3-stefan@olimex.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
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The overlay path ends with trailing zero. When adding this path
as property value, this character should be removed. This is the case
when the overlay adds a node with an alias.
Signed-off-by: Stefan Mavrodiev <stefan@olimex.com>
Message-Id: <20191111080444.9819-2-stefan@olimex.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
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Python recently deprecated some test methods in favour of others. Adjust
the code to avoid warnings.
Signed-off-by: Simon Glass <sjg@chromium.org>
Message-Id: <20191113012410.62550-1-sjg@chromium.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
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BSD sed requires that an extension is provided to the -i (in-place edit)
flag, which may immediately follow the -i or may be separated by a space -
sed -i .bak and sed -i.bak are equivalent. The extension is optional with
GNU sed, but if provided must immediately follow the -i. Thus, sed -i.bak
behaves identically with both GNU and BSD sed.
Signed-off-by: Ed Maste <emaste@freebsd.org>
Message-Id: <20191114203615.2866-1-emaste@freefall.freebsd.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
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This function returns an int32_t, however the prototype in
libfdt_internal.h shows it returning an int. We haven't caught this before
because they're the same type on nearly all platforms this gets built on.
Apparently it's not the case on FreeRTOS, so someone hit this mismatch
building for that platform.
Reported-by: dharani kumar <dharanikumarsrvn@gmail.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
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The type here is uint32_t which should use PRIx32, not plain %x which is
for an int, we've just gotten away with it so far.
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
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Use -b to explicitly set file prefix, so that byacc generates files with
the same names as bison.
Add %locations to dtc-parser.y to explicitly enable location tracking
for byacc, and define YYERROR_CALL to prevent byacc from defining it to
call yyerror with 2 parameters because of the locations directive,
because dtc-parser.y defines yyerror to accept one parameter.
Signed-off-by: Ethan Sommer <e5ten.arch@gmail.com>
Message-Id: <20191029162619.32561-1-e5ten.arch@gmail.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
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This function should use a void * type, not char *. This causes an error:
TypeError: in method 'fdt_property_stub', argument 3 of type 'char const *'
Fix it and update the tests.
Signed-off-by: Simon Glass <sjg@chromium.org>
Message-Id: <20191025010226.34378-1-sjg@chromium.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
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Fixes:
ResourceWarning: unclosed file <_io.BufferedReader name='test_tree1.dtb'>
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20191009102025.10179-9-marcandre.lureau@redhat.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
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dtc uses non-portable formats. Using gnu_printf attributes (for
warnings) in combination with __USE_MINGW_ANSI_STDIO allows to build
for win32.
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20191009102025.10179-8-marcandre.lureau@redhat.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
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Fixes mingw cross-compilation. lstat() doesn't exist on win32.
It seems to me that stat() is the right function there, to return
informations about the file it refers to.
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20191009102025.10179-7-marcandre.lureau@redhat.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
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Instead of outputing files to current directory, allow to specificy an
output directory. This helps with meson build system out-of-tree support.
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20191009102025.10179-4-marcandre.lureau@redhat.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
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meson runs out-of-tree, add absolute path location where necessary.
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20191009102025.10179-3-marcandre.lureau@redhat.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
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At present the tool terminates its execution if one of the overlays passed
as command-line arguments can't be successfully read or applied, but the exit
code of the process is zero, making failures hard to detect inside scripts.
Signed-off-by: Valter Minute <valter.minute@toradex.com>
Message-Id: <20191009123256.14248-1-valter.minute@toradex.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
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Set code style for various editors.
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20191009102025.10179-2-marcandre.lureau@redhat.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
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