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cb3ce95401
In order to make it easier to move on to dropping common.h from code directly, remove common.h inclusion from the rest of the header file which had been including it. Reviewed-by: Simon Glass <sjg@chromium.org> Signed-off-by: Tom Rini <trini@konsulko.com>
110 lines
3.3 KiB
C
110 lines
3.3 KiB
C
/* SPDX-License-Identifier: MIT */
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/*
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* Copyright (C) 2016 The Android Open Source Project
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*/
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#if !defined(AVB_INSIDE_LIBAVB_H) && !defined(AVB_COMPILATION)
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#error "Never include this file directly, include libavb.h instead."
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#endif
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#ifndef AVB_SYSDEPS_H_
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#define AVB_SYSDEPS_H_
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#ifdef __cplusplus
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extern "C" {
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#endif
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/* Change these includes to match your platform to bring in the
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* equivalent types available in a normal C runtime. At least things
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* like uint8_t, uint64_t, and bool (with |false|, |true| keywords)
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* must be present.
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*/
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#include <stdio.h>
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#include <stdbool.h>
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#include <linux/types.h>
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/* If you don't have gcc or clang, these attribute macros may need to
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* be adjusted.
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*/
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#define AVB_ATTR_WARN_UNUSED_RESULT __attribute__((warn_unused_result))
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#define AVB_ATTR_PACKED __attribute__((packed))
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#define AVB_ATTR_NO_RETURN __attribute__((noreturn))
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#define AVB_ATTR_SENTINEL __attribute__((__sentinel__))
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/* Size in bytes used for alignment. */
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#ifdef __LP64__
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#define AVB_ALIGNMENT_SIZE 8
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#else
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#define AVB_ALIGNMENT_SIZE 4
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#endif
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/* Compare |n| bytes in |src1| and |src2|.
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*
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* Returns an integer less than, equal to, or greater than zero if the
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* first |n| bytes of |src1| is found, respectively, to be less than,
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* to match, or be greater than the first |n| bytes of |src2|. */
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int avb_memcmp(const void* src1,
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const void* src2,
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size_t n) AVB_ATTR_WARN_UNUSED_RESULT;
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/* Compare two strings.
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*
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* Return an integer less than, equal to, or greater than zero if |s1|
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* is found, respectively, to be less than, to match, or be greater
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* than |s2|.
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*/
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int avb_strcmp(const char* s1, const char* s2);
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/* Compare |n| bytes in two strings.
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*
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* Return an integer less than, equal to, or greater than zero if the
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* first |n| bytes of |s1| is found, respectively, to be less than,
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* to match, or be greater than the first |n| bytes of |s2|.
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*/
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int avb_strncmp(const char* s1, const char* s2, size_t n);
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/* Copy |n| bytes from |src| to |dest|. */
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void* avb_memcpy(void* dest, const void* src, size_t n);
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/* Set |n| bytes starting at |s| to |c|. Returns |dest|. */
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void* avb_memset(void* dest, const int c, size_t n);
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/* Prints out a message. The string passed must be a NUL-terminated
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* UTF-8 string.
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*/
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void avb_print(const char* message);
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/* Prints out a vector of strings. Each argument must point to a
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* NUL-terminated UTF-8 string and NULL should be the last argument.
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*/
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void avb_printv(const char* message, ...) AVB_ATTR_SENTINEL;
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/* Aborts the program or reboots the device. */
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void avb_abort(void) AVB_ATTR_NO_RETURN;
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/* Allocates |size| bytes. Returns NULL if no memory is available,
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* otherwise a pointer to the allocated memory.
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*
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* The memory is not initialized.
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*
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* The pointer returned is guaranteed to be word-aligned.
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*
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* The memory should be freed with avb_free() when you are done with it.
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*/
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void* avb_malloc_(size_t size) AVB_ATTR_WARN_UNUSED_RESULT;
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/* Frees memory previously allocated with avb_malloc(). */
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void avb_free(void* ptr);
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/* Returns the lenght of |str|, excluding the terminating NUL-byte. */
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size_t avb_strlen(const char* str) AVB_ATTR_WARN_UNUSED_RESULT;
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/* Divide the |dividend| by 10 and saves back to the pointer. Return the
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* remainder. */
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uint32_t avb_div_by_10(uint64_t* dividend);
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#ifdef __cplusplus
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}
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#endif
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#endif /* AVB_SYSDEPS_H_ */
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