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- added patch which fixed big/small endian problems on non-x86 host CPUs. 

https://lists.berlios.de/pipermail/openocd-development/2008-February/000846.html
(thanks to Øyvind for the patch)

git-svn-id: svn://svn.berlios.de/openocd/trunk@313 b42882b7-edfa-0310-969c-e2dbd0fdcd60
This commit is contained in:
mifi 2008-02-19 21:44:19 +00:00
parent 95df797b2e
commit 6057fc8ab8
1 changed files with 32 additions and 45 deletions
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77
src/helper/types.h
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@ -19,10 +19,10 @@
***************************************************************************/
#ifndef TYPES_H
#define TYPES_H
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#endif
#ifndef u8
typedef unsigned char u8;
@ -40,53 +40,40 @@ typedef unsigned int u32;
typedef unsigned long long u64;
#endif
#ifdef WORDS_BIGENDIAN /* big endian host */
#define le_to_h_u32(x) (u32)((x)[0] | (x)[1] << 8 | (x)[2] << 16 | (x)[3] << 24)
#define le_to_h_u16(x) (u16)((x)[0] | (x)[1] << 8)
#define be_to_h_u32(x) (*(u32*)(x))
#define be_to_h_u16(x) (*(u16*)(x))
#define h_u32_to_le(buf, val) \
do { \
(buf)[3] = ((val) & 0xff000000) >> 24; \
(buf)[2] = ((val) & 0x00ff0000) >> 16; \
(buf)[1] = ((val) & 0x0000ff00) >> 8; \
(buf)[0] = ((val) & 0x000000ff); \
} while (0)
/* DANGER!!!! here be dragons! Note that the pointer in
* memory might be unaligned. On some CPU's, i.e. ARM7,
* the 2 lsb are ignored for 32 bit access, on others
* it will cause an exception and on e.g. x86, it works
* the same as if aligned.
*/
#define le_to_h_u32(x) ((u32)((x)[0] | (x)[1] << 8 | (x)[2] << 16 | (x)[3] << 24))
#define le_to_h_u16(x) ((u16)((x)[0] | (x)[1] << 8))
#define be_to_h_u32(x) ((u32)((x)[3] | (x)[2] << 8 | (x)[1] << 16 | (x)[0] << 24))
#define be_to_h_u16(x) ((u16)((x)[1] | (x)[0] << 8))
#define h_u16_to_le(buf, val) \
do { \
(buf)[1] = ((val) & 0xff00) >> 8; \
(buf)[0] = ((val) & 0x00ff); \
} while (0)
#define h_u32_to_le(buf, val) do {\
(buf)[3] = ((val) & 0xff000000) >> 24;\
(buf)[2] = ((val) & 0x00ff0000) >> 16;\
(buf)[1] = ((val) & 0x0000ff00) >> 8;\
(buf)[0] = ((val) & 0x000000ff);\
} while (0)
#define h_u32_to_be(buf, val) do {\
(buf)[0] = ((val) & 0xff000000) >> 24;\
(buf)[1] = ((val) & 0x00ff0000) >> 16;\
(buf)[2] = ((val) & 0x0000ff00) >> 8;\
(buf)[3] = ((val) & 0x000000ff);\
} while (0)
#define h_u32_to_be(buf, val) do { *(u32*)(buf) = (val); } while (0)
#define h_u16_to_be(buf, val) do { *(u16*)(buf) = (val); } while (0)
#define h_u16_to_le(buf, val) do {\
(buf)[1] = ((val) & 0xff00) >> 8;\
(buf)[0] = ((val) & 0x00ff) >> 0;\
} while (0)
#define h_u16_to_be(buf, val) do {\
(buf)[0] = ((val) & 0xff00) >> 8;\
(buf)[1] = ((val) & 0x00ff) >> 0;\
} while (0)
#else /* little endian host */
#define le_to_h_u32(x) (*(u32*)(x))
#define le_to_h_u16(x) (*(u16*)(x))
#define be_to_h_u32(x) (u32)((x)[3] | (x)[2] << 8 | (x)[1] << 16 | (x)[0] << 24)
#define be_to_h_u16(x) (u16)((x)[1] | (x)[0] << 8)
#define h_u32_to_le(buf, val) do { *(u32*)(buf) = (val); } while (0)
#define h_u16_to_le(buf, val) do { *(u16*)(buf) = (val); } while (0)
#define h_u32_to_be(buf, val) \
do { \
(buf)[0] = ((val) & 0xff000000) >> 24; \
(buf)[1] = ((val) & 0x00ff0000) >> 16; \
(buf)[2] = ((val) & 0x0000ff00) >> 8; \
(buf)[3] = ((val) & 0x000000ff); \
} while (0)
#define h_u16_to_be(buf, val) \
do { \
(buf)[0] = ((val) & 0xff00) >> 8; \
(buf)[1] = ((val) & 0x00ff); \
} while (0)
#endif
#endif /* TYPES_H */