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cdcb415851
I've recently worked with a FreeBSD developer, getting dtc and libfdt working on FreeBSD. This showed up a number of portability problems in the dtc package which this patch addresses. Changes are as follows: - the parent_offset and supernode_atdepth_offset testcases used the glibc extension functions strchrnul() and strndupa(). Those are removed, using slightly longer coding with standard C functions instead. - some other testcases had a #define _GNU_SOURCE for no particular reason. This is removed. - run_tests.sh has bash specific constructs removed, and the interpreter changed to /bin/sh. This apparently now runs fine on FreeBSD's /bin/sh, and I've also tested it with both ash and dash. - convert-dtsv0-lexer.l has some extra #includes added. These must have been included indirectly with Linux and glibc, but aren't on FreeBSD. - the endian handling functions in libfdt_env.h, based on endian.h and byteswap.h are replaced with some portable open-coded versions. Unfortunately, these result in fairly crappy code when compiled, but as far as I can determine there doesn't seem to be any POSIX, SUS or de facto standard way of determining endianness at compile time, nor standard names for byteswapping functions. - some more endian handling, from testdata.h using the problematic endian.h is simply removed, since it wasn't actually being used anyway. Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
23 lines
574 B
C
23 lines
574 B
C
#ifndef _LIBFDT_ENV_H
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#define _LIBFDT_ENV_H
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#include <stddef.h>
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#include <stdint.h>
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#include <string.h>
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#define _B(n) ((unsigned long long)((uint8_t *)&x)[n])
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static inline uint32_t fdt32_to_cpu(uint32_t x)
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{
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return (_B(0) << 24) | (_B(1) << 16) | (_B(2) << 8) | _B(3);
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}
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#define cpu_to_fdt32(x) fdt32_to_cpu(x)
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static inline uint64_t fdt64_to_cpu(uint64_t x)
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{
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return (_B(0) << 56) | (_B(1) << 48) | (_B(2) << 40) | (_B(3) << 32)
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| (_B(4) << 24) | (_B(5) << 16) | (_B(6) << 8) | _B(7);
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}
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#define cpu_to_fdt64(x) fdt64_to_cpu(x)
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#undef _B
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#endif /* _LIBFDT_ENV_H */
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