mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
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![Rob Herring](/assets/img/avatar_default.png)
This adds the following commits from upstream: f267e674d145 checks: Fix crash with multiple source annotations 3616b9a811b6 checks: Use source position information for check failures 2bdbd07a1223 checks: Make each message output atomic a1eff70c02cf util: Add xa{v}sprintf_append functions 82a52ce4573b libfdt: Add a test for fdt_getprop_by_offset() 607b8586b383 PEP8 / Flake8 cleanups for setup.py f9c0a425b648 Remove broken objdir / srcdir support 5182b5e6f28c pylibfdt: Use common PREFIX variable d45bf1f5f2a6 Refine make tests_clean target 99284c4db9cb Refine pylibfdt_clean target a4629cfaedfb Refine libfdt_clean target 08380fc43aa2 tests: Use modern octal literals for Python 8113c00b99d3 pylibfdt: Allow switch to Python 3 via environment variable PYTHON 11738cf01f15 libfdt: Don't use memcpy to handle unaligned reads on ARM 86a288a73670 checks: Restructure check_msg to decrease indentation 5667e7ef9a9a annotations: add the annotation functionality 8e20ccf52f90 annotations: add positions ca930e20bb54 tests: Don't lose errors from make checkm 43366bb4eeee tests: Property count valgrind errors in wrapped tests 5062516fb8cb srcpos: Remove srcpos_empty a3143fafbf83 Revert "annotations: add positions" 403cc79f06a1 checks: Update SPI bus check for 'spi-slave' baa1d2cf7894 annotations: add positions ff2ad38f6a5a Merge remote-tracking branch 'origin/pr/18' aa7254d9cb17 libfdt: return correct value if #size-cells property is not present 49903aed7783 use ptrdiff_t modifier for printing pointer differences da2b691ccf68 treesource: Fix dts output for phandles in middle of a sequence of ints 8f8b77a0d62d tests: Wrap check_align() calls with base_run_test() 522d81d572f2 Fix dts output with a REF_PATH marker e45198c98359 Added test cases for target references 0fcffda15e9f Merge nodes with local target label references 1e4a0928f3b3 pylibfdt: Don't have setup.py depend on where it's invoked from ca399b14956f pylibfdt: Eliminate run_setup make function 98972f1b3e33 pylibfdt: Improved version extraction 7ba2be6cda5f pylibfdt: Don't silence setup.py when V=1 7691f9d39301 pylibfdt: Make SETUP make variable 855b9963def9 pylibfdt: Simpler CFLAGS handling 47cafbeeb977 pylibfdt: Link extension module with libfdt rather than rebuilding dd695d6afb19 pylibfdt: Correctly set build output directory 59327523d0d8 pylibfdt: We don't need include files from the base directory e84742aa7b93 checks: fix simple-bus compatible matching 8c59a97ce096 Fix missing labels when emitting dts format d448f9a5fd94 Revert dts output formatting changes of spaces around brackets Signed-off-by: Rob Herring <robh@kernel.org>
256 lines
7.6 KiB
C
256 lines
7.6 KiB
C
#ifndef UTIL_H
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#define UTIL_H
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#include <stdarg.h>
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#include <stdbool.h>
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#include <getopt.h>
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/*
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* Copyright 2011 The Chromium Authors, All Rights Reserved.
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* Copyright 2008 Jon Loeliger, Freescale Semiconductor, Inc.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of the
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* License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
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* USA
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*/
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#ifdef __GNUC__
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#define PRINTF(i, j) __attribute__((format (printf, i, j)))
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#define NORETURN __attribute__((noreturn))
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#else
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#define PRINTF(i, j)
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#define NORETURN
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#endif
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#define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0]))
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#define stringify(s) stringify_(s)
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#define stringify_(s) #s
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static inline void NORETURN PRINTF(1, 2) die(const char *str, ...)
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{
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va_list ap;
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va_start(ap, str);
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fprintf(stderr, "FATAL ERROR: ");
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vfprintf(stderr, str, ap);
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va_end(ap);
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exit(1);
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}
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static inline void *xmalloc(size_t len)
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{
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void *new = malloc(len);
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if (!new)
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die("malloc() failed\n");
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return new;
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}
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static inline void *xrealloc(void *p, size_t len)
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{
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void *new = realloc(p, len);
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if (!new)
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die("realloc() failed (len=%zd)\n", len);
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return new;
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}
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extern char *xstrdup(const char *s);
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extern int PRINTF(2, 3) xasprintf(char **strp, const char *fmt, ...);
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extern int PRINTF(2, 3) xasprintf_append(char **strp, const char *fmt, ...);
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extern int xavsprintf_append(char **strp, const char *fmt, va_list ap);
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extern char *join_path(const char *path, const char *name);
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/**
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* Check a property of a given length to see if it is all printable and
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* has a valid terminator. The property can contain either a single string,
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* or multiple strings each of non-zero length.
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*
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* @param data The string to check
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* @param len The string length including terminator
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* @return 1 if a valid printable string, 0 if not
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*/
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bool util_is_printable_string(const void *data, int len);
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/*
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* Parse an escaped character starting at index i in string s. The resulting
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* character will be returned and the index i will be updated to point at the
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* character directly after the end of the encoding, this may be the '\0'
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* terminator of the string.
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*/
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char get_escape_char(const char *s, int *i);
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/**
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* Read a device tree file into a buffer. This will report any errors on
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* stderr.
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*
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* @param filename The filename to read, or - for stdin
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* @param len If non-NULL, the amount of data we managed to read
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* @return Pointer to allocated buffer containing fdt, or NULL on error
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*/
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char *utilfdt_read(const char *filename, size_t *len);
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/**
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* Read a device tree file into a buffer. Does not report errors, but only
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* returns them. The value returned can be passed to strerror() to obtain
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* an error message for the user.
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*
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* @param filename The filename to read, or - for stdin
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* @param buffp Returns pointer to buffer containing fdt
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* @param len If non-NULL, the amount of data we managed to read
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* @return 0 if ok, else an errno value representing the error
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*/
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int utilfdt_read_err(const char *filename, char **buffp, size_t *len);
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/**
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* Write a device tree buffer to a file. This will report any errors on
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* stderr.
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*
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* @param filename The filename to write, or - for stdout
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* @param blob Poiner to buffer containing fdt
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* @return 0 if ok, -1 on error
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*/
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int utilfdt_write(const char *filename, const void *blob);
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/**
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* Write a device tree buffer to a file. Does not report errors, but only
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* returns them. The value returned can be passed to strerror() to obtain
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* an error message for the user.
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*
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* @param filename The filename to write, or - for stdout
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* @param blob Poiner to buffer containing fdt
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* @return 0 if ok, else an errno value representing the error
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*/
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int utilfdt_write_err(const char *filename, const void *blob);
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/**
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* Decode a data type string. The purpose of this string
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*
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* The string consists of an optional character followed by the type:
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* Modifier characters:
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* hh or b 1 byte
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* h 2 byte
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* l 4 byte, default
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*
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* Type character:
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* s string
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* i signed integer
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* u unsigned integer
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* x hex
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*
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* TODO: Implement ll modifier (8 bytes)
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* TODO: Implement o type (octal)
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*
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* @param fmt Format string to process
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* @param type Returns type found(s/d/u/x), or 0 if none
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* @param size Returns size found(1,2,4,8) or 4 if none
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* @return 0 if ok, -1 on error (no type given, or other invalid format)
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*/
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int utilfdt_decode_type(const char *fmt, int *type, int *size);
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/*
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* This is a usage message fragment for the -t option. It is the format
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* supported by utilfdt_decode_type.
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*/
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#define USAGE_TYPE_MSG \
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"<type>\ts=string, i=int, u=unsigned, x=hex\n" \
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"\tOptional modifier prefix:\n" \
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"\t\thh or b=byte, h=2 byte, l=4 byte (default)";
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/**
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* Print property data in a readable format to stdout
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*
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* Properties that look like strings will be printed as strings. Otherwise
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* the data will be displayed either as cells (if len is a multiple of 4
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* bytes) or bytes.
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*
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* If len is 0 then this function does nothing.
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*
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* @param data Pointers to property data
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* @param len Length of property data
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*/
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void utilfdt_print_data(const char *data, int len);
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/**
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* Show source version and exit
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*/
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void NORETURN util_version(void);
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/**
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* Show usage and exit
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*
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* This helps standardize the output of various utils. You most likely want
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* to use the usage() helper below rather than call this.
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*
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* @param errmsg If non-NULL, an error message to display
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* @param synopsis The initial example usage text (and possible examples)
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* @param short_opts The string of short options
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* @param long_opts The structure of long options
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* @param opts_help An array of help strings (should align with long_opts)
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*/
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void NORETURN util_usage(const char *errmsg, const char *synopsis,
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const char *short_opts,
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struct option const long_opts[],
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const char * const opts_help[]);
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/**
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* Show usage and exit
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*
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* If you name all your usage variables with usage_xxx, then you can call this
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* help macro rather than expanding all arguments yourself.
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*
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* @param errmsg If non-NULL, an error message to display
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*/
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#define usage(errmsg) \
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util_usage(errmsg, usage_synopsis, usage_short_opts, \
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usage_long_opts, usage_opts_help)
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/**
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* Call getopt_long() with standard options
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*
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* Since all util code runs getopt in the same way, provide a helper.
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*/
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#define util_getopt_long() getopt_long(argc, argv, usage_short_opts, \
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usage_long_opts, NULL)
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/* Helper for aligning long_opts array */
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#define a_argument required_argument
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/* Helper for usage_short_opts string constant */
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#define USAGE_COMMON_SHORT_OPTS "hV"
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/* Helper for usage_long_opts option array */
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#define USAGE_COMMON_LONG_OPTS \
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{"help", no_argument, NULL, 'h'}, \
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{"version", no_argument, NULL, 'V'}, \
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{NULL, no_argument, NULL, 0x0}
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/* Helper for usage_opts_help array */
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#define USAGE_COMMON_OPTS_HELP \
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"Print this help and exit", \
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"Print version and exit", \
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NULL
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/* Helper for getopt case statements */
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#define case_USAGE_COMMON_FLAGS \
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case 'h': usage(NULL); \
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case 'V': util_version(); \
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case '?': usage("unknown option");
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#endif /* UTIL_H */
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