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2017-02-08dtc: pos parameter to srcpos_string() can't be NULLDavid Gibson
None of the callers ever pass a NULL to srcpos_string(), so the check for it is not necessary. Furthermore, checking it make Coverity complain about the raw dereferences which follow later in the function. Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2016-07-13Remove unused srcpos_dump() functionDavid Gibson
srcpos_dump() has no current users, and I have no plans to use it. So remove it. Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2016-05-25Use xasprintf() in srcposDavid Gibson
Now that we have an xasprintf() helper function, use it to simplify the srcpos_string() implementation. Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2014-06-19Open binary files in binary modeAndrei Errapart
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>
2014-01-25dtc: avoid shadowing dirname()Florian Fainelli
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>
2014-01-01Make srcpos_{v,}error() more widely usefulDavid Gibson
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>
2014-01-01Fix memory leak in srcpos_verror()David Gibson
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>
2014-01-01Fix indentation of srcpos_verror()David Gibson
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>
2014-01-01Fix typo in type of srcpos_verror() et al.David Gibson
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>
2014-01-01Remove unused srcpos_warn() functionDavid Gibson
This function has no users, and we can replace it more generally later. Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2013-10-28Use stdbool more widelyDavid Gibson
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>
2012-10-16dtc: srcpos_verror() should print to stderrMichael Ellerman
Errors should go to stderr. Signed-off-by: Michael Ellerman <michael@ellerman.id.au> Acked-by: David Gibson <david@gibson.dropbear.id.au>
2012-09-28dtc: cpp co-existence: add support for #line directivesStephen Warren
Line control directives of the following formats are supported: #line LINE "FILE" # LINE "FILE" [FLAGS] This allows dtc to consume the output of pre-processors, and to provide error messages that refer to the original filename, including taking into account any #include directives that the pre-processor may have performed. Signed-off-by: Stephen Warren <swarren@nvidia.com> Acked-by: David Gibson <david@gibson.dropbear.id.au>
2012-03-18dtc: Add -i option to support search pathsSimon Glass
It is often inconvenient to place device tree files in the same directory as their includes, or to specify the full path to include files. An example of this is in U-Boot where we have a .dtsi file for each SOC type, and this is included by the board .dts file. We need to either use a mechanism like: /include/ ARCH_CPU_DTS with sed or cpp to perform the replacement with the correct path, or we must specify the full path in the file: /include/ "../../arch/arm/dts/tegra20.dtsi" The first option is not desirable since it requires anyone compiling the file to first pre-process it. The second is not desirable since it introduces a path which is project-specific into a file which is supposed to be a hardware description. For example Linux and U-Boot are unlikely to put these include files in the same place. It is much more convenient to specify the search patch on the command line as is done with C pre-processors, for example. Introduce a -i option to add to the list of search paths used to find source and include files. We cannot use -I as it is already in use. Other suggestions welcome. Signed-off-by: Simon Glass <sjg@chromium.org>
2012-01-13dtc: Implement -d option to write out a dependency fileStephen Warren
This will allow callers to rebuild .dtb files when any of the /include/d .dtsi files are modified, not just the top-level .dts file. Signed-off-by: Stephen Warren <swarren@nvidia.com> Acked-by: David Gibson <david@gibson.dropbear.id.au>
2010-10-20Create new and use new print_error that uses printf style formatting.John Bonesio
yyerror is meant to be called by the parser internal code, and it's interface is limited. Instead create and call a new error message routine that allows formatted strings to be used. yyerror uses the new routine so error formatting remains consistent. Signed-of-by: John Bonesio <bones@secretlab.ca> Acked-by: David Gibson <david@gibson.dropbear.id.au> Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2010-01-14dtc: Cleanup YYLTYPE and YYLLOC_DEFAULT declarationsDavid Gibson
This patch makes some small cleanups to the declaration of YYLTYPE, YYLLOC_DEFAULT and related things. - We used to use undocumented magic #defines for bison, YYLTYPE_IS_DECLARED and YYLTYPE_IS_TRIVIAL. This may not be portable across bison versions. Instead define YYLTYPE as a macro in terms of struct srcpos, as the info pages suggest. - Our kernel-derived coding style discourages typedefed structures. So use 'struct srcpos' instead of 'srcpos' throughout'. - Indent the YYLLOC_DEFAULT macro according to our coding style (it was in GNU indent style, since it was taken from the example in the bison info). Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2010-01-14dtc: Cleanup srcpos_string()David Gibson
There are several small problems with the current srcpos_string(). - The code unnecessarily uses a temp buffer and two rounds of *printf(); a single asprintf() will suffice. - With previous changes, pos->file->name can never be NULL, and the name field for a srcfile bound to stdin is already set to something sensible. - On allocation failure in asprintf() it returns a bogus result, instead of causing a fatal error like every other failed allocation. - The format for representing file/line/column is gratuitously different from the file/line format we used to use, and the format used by gcc and bison. This patch addresses all of these. There remains the problem that asprintf() is not portable, but that can wait until another patch. Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2010-01-14dtc: Cleanup line number tracking, add column number trackingDavid Gibson
Our YYLTYPE current carries around first and last line and first and last column information. However, of these, on the first line information is actually filled in properly. Furthermore, filling in the line number information from yylineno is kind of clunky: we have to copy its value to the srcfile stack and back to handle include file positioning correctly. This patch cleans this up. We turn off flex's yylineno option and instead track the line and column number ourselves from YY_USER_ACTION. The line and column number are stored directly inside the srcfile_state structure, so it's automatically a per-file quantity. We now also fill in all the yylloc from YY_USER_ACTION. Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2010-01-14dtc: Simpler interface to source file managementDavid Gibson
This patch cleans up our handling of input files, particularly dts source files, but also (to an extent) other input files such as those used by /incbin/ and those used in -I dtb and -I fs modes. We eliminate the current clunky mechanism which combines search paths (which we don't actually use at present) with the open relative to current source file behaviour, which we do. Instead there's a single srcfile_relative_open() entry point for callers which opens a new input file relative to the current source file (which the srcpos code tracks internally). It doesn't currently do search paths, but we can add that later without messing with the callers, by drawing the search path from a global (which makes sense anyway, rather than shuffling it around the rest of the processing code). That suffices for non-dts input files. For the actual dts files, srcfile_push() and srcfile_pop() wrappers open the file while also keeping track of it as the current source file for future opens. Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2008-10-03Enhance source position implementation.Jon Loeliger
Implemented some print and copy routines. Made empty srcpos objects that will be used later. Protected .h file from multiple #include's. Added srcpos_error() and srcpos_warn(). Signed-off-by: Jon Loeliger <jdl@freescale.com>
2008-10-03Implement and use an xstrdup() functionJon Loeliger
Many places in dtc use strdup(), but none of them actually check the return value to see if the implied allocation succeeded. This is a potential bug, which we fix in the patch below by replacing strdup() with an xstrdup() which in analogy to xmalloc() will quit with a fatal error if the allocation fails. I felt the introduciton of util.[ch] was a better choice for utility oriented code than directly using srcpos.c for the new string function. This patch is a re-factoring of Dave Gibson's similar patch. Signed-off-by: Jon Loeliger <jdl@freescale.com>
2008-03-23dtc: Make dtc_open_file() die() if unable to open requested fileDavid Gibson
All current callers of dtc_open_file() immediately die() if it returns an error. In a non-interative tool like dtc, it's hard to see what you could sensibly do to recover from a failure to open an input file in any case. Therefore, make dtc_open_file() itself die() if there's an error opening the requested file. This removes the need for error checking at the callsites, and ensures a consistent error message in all cases. While we're at it, change the rror message from fstree.c when we fail to open the input directory to match dtc_open_file()'s error message. Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2008-01-11Remove const from dtc_file::dir.Scott Wood
Signed-off-by: Scott Wood <scottwood@freescale.com>
2008-01-07Convert malloc() uses to xmalloc().Scott Wood
Signed-off-by: Scott Wood <scottwood@freescale.com>
2008-01-07Handle absolute pathnames correctly in dtc_open_file.Scott Wood
Also, free file->dir when freeing file. Signed-off-by: Scott Wood <scottwood@freescale.com>
2008-01-04Look for include files in the directory of the including file.Scott Wood
Looking in the diretory dtc is invoked from is not very useful behavior. As part of the code reorganization to implement this, I removed the uniquifying of name storage -- it seemed a rather dubious optimization given likely usage, and some aspects of it would have been mildly awkward to integrate with the new code. Signed-off-by: Scott Wood <scottwood@freescale.com>
2007-03-26DTC: Add support for a C-like #include "file" mechanism.Jon Loeliger
Keeps track of open files in a stack, and assigns a filenum to source positions for each lexical token. Modified error reporting to show source file as well. No policy on file directory basis has been decided. Still handles stdin. Tested on all arch/powerpc/boot/dts DTS files Signed-off-by: Jon Loeliger <jdl@freescale.com>