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dtc: Enable and fix -Wpointer-arith warnings

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This patch turns on the -Wpointer-arith option in the dtc Makefile,
and fixes the resulting warnings due to using (void *) in pointer
arithmetic.  While convenient, pointer arithmetic on void * is not
portable, so it's better that we avoid it, particularly in libfdt.

Also add necessary definition of uintptr_t needed by David Gibson's
changeset "dtc: Enable and fix -Wpointer-arith warnings" (the definition
comes from stdint.h, which u-boot doesn't have). -- gvb

Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Gerald Van Baren <vanbaren@cideas.com>
This commit is contained in:
David Gibson
2008-07-07 10:10:48 +10:00
committed by Gerald Van Baren
parent afe3848b79
commit ef4e8ce1be
7 changed files with 47 additions and 30 deletions
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12
include/libfdt_env.h
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@@ -38,4 +38,16 @@ extern struct fdt_header *working_fdt; /* Pointer to the working fdt */
#define fdt64_to_cpu(x) __be64_to_cpu(x)
#define cpu_to_fdt64(x) __cpu_to_be64(x)
/*
* Types for `void *' pointers.
*
* Note: libfdt uses this definition from /usr/include/stdint.h.
* Define it here rather than pulling in all of stdint.h.
*/
#if __WORDSIZE == 64
typedef unsigned long int uintptr_t;
#else
typedef unsigned int uintptr_t;
#endif
#endif /* _LIBFDT_ENV_H */