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Merge pull request #1004 from yamt/user-define-header

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Add an alternative way to override LFS_MALLOC etc
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Christopher Haster 2024-12-06 13:45:56 -06:00 committed by GitHub
commit c961e1fe66
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1 changed files with 20 additions and 2 deletions
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22
lfs_util.h
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@ -8,6 +8,9 @@
#ifndef LFS_UTIL_H
#define LFS_UTIL_H
#define LFS_STRINGIZE(x) LFS_STRINGIZE2(x)
#define LFS_STRINGIZE2(x) #x
// Users can override lfs_util.h with their own configuration by defining
// LFS_CONFIG as a header file to include (-DLFS_CONFIG=lfs_config.h).
//
@ -15,11 +18,26 @@
// provided by the config file. To start, I would suggest copying lfs_util.h
// and modifying as needed.
#ifdef LFS_CONFIG
#define LFS_STRINGIZE(x) LFS_STRINGIZE2(x)
#define LFS_STRINGIZE2(x) #x
#include LFS_STRINGIZE(LFS_CONFIG)
#else
// Alternatively, users can provide a header file which defines
// macros and other things consumed by littlefs.
//
// For example, provide my_defines.h, which contains
// something like:
//
// #include <stddef.h>
// extern void *my_malloc(size_t sz);
// #define LFS_MALLOC(sz) my_malloc(sz)
//
// And build littlefs with the header by defining LFS_DEFINES.
// (-DLFS_DEFINES=my_defines.h)
#ifdef LFS_DEFINES
#include LFS_STRINGIZE(LFS_DEFINES)
#endif
// System includes
#include <stdint.h>
#include <stdbool.h>