1) No variadic macros in the form "args..."; this is a GCC extension.
2) No empty struct initializers. In any case, there is very little to win:
{ } vs. { 0 }.
Signed-off-by: Andrei Errapart <andrei@errapartengineering.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
The "b" flag to fopen() is generally a no-op on Unix-like systems, but may
be important on other systems, including Windows.
Signed-off-by: Andrei Errapart <andrei@errapartengineering.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Some platforms (including the Microsoft C compiler) have char defaulting
to signed. write_propval_bytes() in the -O dts code will not behave
correctly in this case, due to sign extension.
Signed-off-by: Andrei Errapart <andrei@errapartengineering.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
This has been there for ages, but the assertion makes no sense in the
context of the test immediately preceding it. This caused an abort()
when in -I dts -O dts mode with the right sort of internal labels in a
string property value.
Add a testcase for this and another candidate edge case (though this one
we already get right).
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
We can test fdtdump by comparing its output with the source file that was
compiled by dtc. Add a simple test that should at least catch regressions
in basic functionality.
Signed-off-by: Simon Glass <sjg@chromium.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
This patch makes a small start on libfdt functions which actually help to
parse the contents of device trees, rather than purely manipulating the
tree's structure.
We add simple helpers to read and sanity check the #address-cells and
#size-cells values for a given node.
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
At present, the lexer token for references to a path doesn't permit a
reference to the root node &{/}. Fixing the lexer exposes another bug
handling this case.
This patch fixes both bugs and adds testcases.
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
The information about the location of the source code of the
device tree compiler was inaccurate.
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
fdtput.c:
Replace the remaining call to realloc by xrealloc.
Some redundant lines in encode_value can be saved.
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Add a README file to document the location of the mailing list, the home
page and state who the maintainers are.
Signed-off-by: Grant Likely <grant.likely@linaro.org>
make dist can be used to produce tarballs directly from the git
repository, which can be useful to automate the release process as well
as shipping custom releases.
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Building on a RHEL6 system produced the following -Wshadow warnings in
fstree.c, util.c and checks.c:
cc1: warnings being treated as errors
checks.c: In function 'parse_checks_option':
checks.c:709: error: declaration of 'optarg' shadows a global
declaration
/usr/include/getopt.h:59: error: shadowed declaration is here
make[1]: *** [checks.o] Error 1
make[1]: *** Waiting for unfinished jobs....
make[1]: *** Waiting for unfinished jobs....
cc1: warnings being treated as errors
fstree.c: In function 'read_fstree':
fstree.c:40: error: declaration of 'tmpnam' shadows a global
declaration
/usr/include/stdio.h:208: error: shadowed declaration is here
make[1]: *** [fstree.o] Error 1
cc1: warnings being treated as errors
util.c: In function 'xstrdup':
util.c:42: error: declaration of 'dup' shadows a global declaration
/usr/include/unistd.h:528: error: shadowed declaration is here
Fix all of these -Wshadow warnings by using slightly different variable
names which won't collide with anything else.
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Now that all -Wshadow build warnings/errors are fixed, turn on -Wshadow
by default to make sure we would catch new potential shadow warnings.
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
FDT_RW_CHECK_HEADER declares an internal variable named "err" which is
far too generic and will produce the following -Wshadow warnings:
libfdt/fdt_rw.c: In function 'fdt_add_mem_rsv':
libfdt/fdt_rw.c:177:2: error: declaration of 'err' shadows a previous
local [-Werror=shadow]
libfdt/fdt_rw.c:175:6: error: shadowed declaration is here
[-Werror=shadow]
libfdt/fdt_rw.c: In function 'fdt_del_mem_rsv':
libfdt/fdt_rw.c:194:2: error: declaration of 'err' shadows a previous
local [-Werror=shadow]
libfdt/fdt_rw.c:192:6: error: shadowed declaration is here
[-Werror=shadow]
libfdt/fdt_rw.c: In function 'fdt_set_name':
...
Since this variable is only used internally in the macro, rename to
__err which should be prefixed enough not to cause new shadow warnings.
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
FDT_CHECK_HEADER declares an internal variable named "err" whose name is
far too generic and will produce the following -Wshadow warnings:
libfdt/fdt_ro.c: In function 'fdt_node_offset_by_compatible':
libfdt/fdt_ro.c:555:2: error: declaration of 'err' shadows a previous
local [-Werror=shadow]
libfdt/fdt_ro.c:553:14: error: shadowed declaration is here
[-Werror=shadow]
cc1: all warnings being treated as errors
Since this variable is only used internally in the macro, rename to
__err which should be prefixed enough not to cause new shadow warnings.
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
dirname() is declared as a function, and later on try_open() another
variable dirname is used, which shadows the dirname() function
declaration and will produce the following warnings/errors with
-Wshadow turned on:
srcpos.c: In function 'try_open':
srcpos.c:71:35: error: declaration of 'dirname' shadows a global
declaration [-Werror=shadow]
srcpos.c:37:14: error: shadowed declaration is here [-Werror=shadow]
srcpos.c: In function 'srcfile_add_search_path':
srcpos.c:183:42: error: declaration of 'dirname' shadows a global
declaration [-Werror=shadow]
srcpos.c:37:14: error: shadowed declaration is here [-Werror=shadow]
cc1: all warnings being treated as errors
Fix this by renaming the function dirname() to get_dirname().
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Generally edit parser error messages for brevity and clarity. Replace
the print_error() function with a a new macro for brevity and clarity in
the source.
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
The print_error() function used in several places in the parser uses the
location information in yylloc to describe the location of the error.
This is not correct in most cases. yylloc gives the location of the
lookahead token, whereas the error is generally associated with one of
the already parsed non-terminals.
This patch corrects this, adding a location parameter to print_error() and
supplying it with the appropriate bison @N symbols.
This probably breaks yacc compatiblity, but too bad - accurate error
messages are more important.
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Failing to open an input file, with /include/ or /incbin/ is treated as
immediately fatal inside srcfile_relative_open(). However, filing to
seek() to the requested offset in an /incbin/ is not. This is a bit oddly
inconsistent, and leaves us with a strange case that's awkward to deal with
down the line.
So, get rid of it and have failed seeks on an /incbin/ be immediately
fatal.
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
To match the processing of integer literals, character literals are passed
as a string from lexer to parser then interpreted there. This is just as
awkward as it was for integer literals, without the excuse that we used to
need the information about the dts version to process them correctly.
So, move character literal processing back to the lexer as well, cleaning
things up.
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
At the moment integer literals are passed from the lexer to the parser as
a string, where it's evaluated into an integer by eval_literal(). That
strange approach happened because we needed to know whether we were
processing dts-v0 or dts-v1 - only known at the parser level - to know
how to interpret the literal properly.
dts-v0 support has been gone for some time now, and the base and bits
parameters to eval_literal() are essentially useless.
So, clean things up by moving the literal interpretation back to the lexer.
This also introduces a new lexical_error() function to report malformed
literals and set the treesource_error flag so that they'll cause a parse
failure at the top level.
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Allow them to take a prefix argument giving the general type of error,
which will be useful in future.
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Since dtc runs are short, we don't care that much about memory leaks.
Still, leaking the source position string every time we print an error
messages is pretty nasty. Fix it.
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Somehow this function ended up with a 7 space indent, instead of the usual
8 space (1 tab) indent.
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
The srcpos_verror() and srcpos_error() functions declare the format
string as 'char const *' instead of 'const char *'. Fix it.
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
The sw_tree1 testcase has accumulated some valgrind errors, at least in
the "realloc" mode.
* It had both a realloc_fdt() and explicit xmalloc() for the initial
allocation which was redundant and caused errors.
* It doesn't make sense to call fdt_resize() until after we've created
the initial stub tree
* Alignment gaps inserted into the tree contain uninitialized data, which
trips an error when we write it out. We could zero the buffer, but that
would make it easier to miss real bugs, so we add suppressions for the
valgrind warnings instead.
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
This is a debugging convenience option, which makes it much easier to find
the failing tests and fix them one by one.
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
The isdigit(), isprint(), etc. functions take an int, whose value is
required to be in the range of an _unsigned_ char, or EOF. This, horribly,
means that systems which have a signed char by default need casts to pass
a char variable safely to these functions.
We can't do this more nicely by making the variables themselves 'unsigned
char *' because then we'll get warnings passing them to the strchr() etc.
functions.
At least the cygwin version of these functions, are designed to generate
warnings if this isn't done, as explained by this comment from ctype.h:
These macros are intentionally written in a manner that will trigger
a gcc -Wall warning if the user mistakenly passes a 'char' instead
of an int containing an 'unsigned char'.
Signed-off-by: Serge Lamikhov-Center <Serge.Lamikhov@gmail.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
We already use the C99 bool type from stdbool.h in a few places. However
there are many other places we represent boolean values as plain ints.
This patch changes that.
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
At present, when using sequential write mode, there's no straightforward
means of resizing the buffer the fdt is being built into. This patch
adds an fdt_resize() function for this purpose.
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
ePAPR 1.1 section 2.2.1.1 "Node Name Requirements" specifies that any
node that has a reg property must include a unit address in its name
with value matching the first entry in its reg property. Conversely, if
a node does not have a reg property, the node name must not include a
unit address.
Adjust all the dtc test-cases to conform to this rule.
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Currently `make install` will install the binaries, libraries and
includes.
This change separates the install target into install-bin, install-lib
and install-includes, so we have more flexibility, particularly when
we're just using libfdt.
Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Previously, the #line parsing regex ended with ({WS}+[0-9]+)?. The {WS}
could match line-break characters. If the #line directive did not contain
the optional flags field at the end, this could cause any integer data on
the next line to be consumed as part of the #line directive parsing. This
could cause syntax errors (i.e. #line parsing consuming the leading 0
from a hex literal 0x1234, leaving x1234 to be parsed as cell data,
which is a syntax error), or invalid compilation results (i.e. simply
consuming literal 1234 as part of the #line processing, thus removing it
from the cell data).
Fix this by replacing {WS} with [ \t] so that it can't match line-breaks.
Convert all instances of {WS}, even though the other instances should be
irrelevant for any well-formed #line directive. This is done for
consistency and ultimate safety.
Reported-by: Ian Campbell <Ian.Campbell@citrix.com>
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Acked-by: David Gibson <david@gibson.dropbear.id.au>
If you try to insert a new node or extend a property with large value,
using fdtput you will notice that it always fails.
example:
fdtput -v -p -ts ./tst.dtb "/node-1" "property-1" "value-1
Error at 'node-1': FDT_ERR_NOSPACE
or
fdtput -v -c ./tst.dtb "/node-1"
Error at 'node-1': FDT_ERR_NOSPACE
or
fdtput -v -ts ./tst.dtb "/node" "property" "very big value"
Decoding value:
string: 'very big value'
Value size 15
Error at 'property': FDT_ERR_NOSPACE
All these error are returned from libfdt, as the size of the fdt passed
has no space to accomdate these new properties.
This patch adds realloc functions in fdtput to allocate new space in fdt
when it detects a shortage in space for new value or node. With this
patch, fdtput can insert a new node or property or extend a property
with new value greater than original size. Also it packs the final blob
to clean up any extra padding.
Without this patch fdtput tool complains with FDT_ERR_NOSPACE when we
try to add a node/property or extend the value of a property.
Testcases for the new behaviour added by David Gibson.
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@st.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
There are a couple of fdtput related tests which are rather pointless -
they explicitly test for the presence of an undesirable limitation in
fdtput, which will cause test failures when we fix it. This patch removes
the tests.
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
We have certain tests which generate extremely long command lines, which
are shortened in the testsuite output with the 'shorten_echo' function.
Currently that is used in run_fdtput_test and run_wrap_test, this patch
uses it for run_wrap_test as well, allowing more general tests with long
command lines.
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
When hacking raw fdt files, it's useful to know the actual offsets into
the file each node appears. Add a --debug mode that includes this.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
I want to use this in more places, so put it in util.h rather than
copying & pasting it into another file.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Now that all utils have converted to the new usage framework, we can
rename to just plain "usage()" and avoid naming conflicts.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
This helps standardize the flag processing and the usage screens.
Only lightly tested; would be great if someone who uses these utils
could double check.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Often times, fdts get embedded in other larger files. Rather than force
people to `dd` the blob out themselves, make the fdtdump file smarter.
It can now scan the blob looking for the fdt magic. Once locate, it does
a little validation on the main struct to make sure we didn't hit random
binary data.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Andrei Errapart