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author | Nico Huber <nico.h@gmx.de> | 2017-12-01 18:33:02 +0000 |
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committer | Nico Huber <nico.h@gmx.de> | 2017-12-19 12:36:38 +0000 |
commit | 095522cceca4aede4b4a5e8cd74cbbd8f63e1116 (patch) | |
tree | dacb6975b940eec5772060afe2af35bfc9adc090 /hwaccess.h | |
parent | 19eb0792b8439198d7ef0077b8f79f275fa39a9d (diff) | |
download | flashrom-095522cceca4aede4b4a5e8cd74cbbd8f63e1116.tar.gz flashrom-095522cceca4aede4b4a5e8cd74cbbd8f63e1116.tar.bz2 flashrom-095522cceca4aede4b4a5e8cd74cbbd8f63e1116.zip |
Move endianness definitions and provide it inside Makefile
Add an `endiantest.c` similar to `archtest.c` to provide the endianness
inside the Makefile. The __FLASHROM_(LITTLE|BIG)_ENDIAN__ definitions
had to move from `hwaccess.h` into `platform.h`, therefor. This will
be used to decide whether to build the internal programmer in a follow-
up.
Change-Id: I55dcf5a88da48f885cda9ad89ab87395d895a891
Signed-off-by: Nico Huber <nico.h@gmx.de>
Reviewed-on: https://review.coreboot.org/22670
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: David Hendricks <david.hendricks@gmail.com>
Diffstat (limited to 'hwaccess.h')
-rw-r--r-- | hwaccess.h | 83 |
1 files changed, 0 insertions, 83 deletions
diff --git a/hwaccess.h b/hwaccess.h index b006d05d7..bc5cb9bda 100644 --- a/hwaccess.h +++ b/hwaccess.h @@ -43,89 +43,6 @@ #undef index #endif /* NEED_PCI == 1 */ - -/* The next big hunk tries to guess endianess from various preprocessor macros */ -/* First some error checking in case some weird header has defined both. - * NB: OpenBSD always defines _BIG_ENDIAN and _LITTLE_ENDIAN. */ -#if defined (__LITTLE_ENDIAN__) && defined (__BIG_ENDIAN__) -#error Conflicting endianness #define -#endif - -#if IS_X86 - -/* All x86 is little-endian. */ -#define __FLASHROM_LITTLE_ENDIAN__ 1 - -#elif IS_MIPS - -/* MIPS can be either endian. */ -#if defined (__MIPSEL) || defined (__MIPSEL__) || defined (_MIPSEL) || defined (MIPSEL) -#define __FLASHROM_LITTLE_ENDIAN__ 1 -#elif defined (__MIPSEB) || defined (__MIPSEB__) || defined (_MIPSEB) || defined (MIPSEB) -#define __FLASHROM_BIG_ENDIAN__ 1 -#endif - -#elif IS_PPC - -/* PowerPC can be either endian. */ -#if defined (_BIG_ENDIAN) || defined (__BIG_ENDIAN__) -#define __FLASHROM_BIG_ENDIAN__ 1 -#elif defined (_LITTLE_ENDIAN) || defined (__LITTLE_ENDIAN__) -#define __FLASHROM_LITTLE_ENDIAN__ 1 -#endif - -#elif IS_ARM - -/* ARM can be either endian. */ -#if defined (__ARMEB__) -#define __FLASHROM_BIG_ENDIAN__ 1 -#elif defined (__ARMEL__) -#define __FLASHROM_LITTLE_ENDIAN__ 1 -#endif - -#elif IS_SPARC -/* SPARC is big endian in general (but allows to access data in little endian too). */ -#define __FLASHROM_BIG_ENDIAN__ 1 - -#endif /* IS_? */ - -#if !defined (__FLASHROM_BIG_ENDIAN__) && !defined (__FLASHROM_LITTLE_ENDIAN__) - -/* If architecture-specific approaches fail try generic variants. First: BSD (works about everywhere). */ -#if !IS_WINDOWS -#include <sys/param.h> - -#if defined (__BYTE_ORDER) -#if __BYTE_ORDER == __LITTLE_ENDIAN -#define __FLASHROM_LITTLE_ENDIAN__ -#elif __BYTE_ORDER == __BIG_ENDIAN -#define __FLASHROM_BIG_ENDIAN__ -#else -#error Unknown byte order! -#endif -#endif /* defined __BYTE_ORDER */ -#endif /* !IS_WINDOWS */ - -#if !defined (__FLASHROM_BIG_ENDIAN__) && !defined (__FLASHROM_LITTLE_ENDIAN__) - -/* Nonstandard libc-specific macros for determining endianness. */ -/* musl provides an endian.h as well... but it can not be detected from within C. */ -#if defined(__GLIBC__) -#include <endian.h> -#if BYTE_ORDER == LITTLE_ENDIAN -#define __FLASHROM_LITTLE_ENDIAN__ 1 -#elif BYTE_ORDER == BIG_ENDIAN -#define __FLASHROM_BIG_ENDIAN__ 1 -#endif -#endif -#endif - -#endif - -#if !defined (__FLASHROM_BIG_ENDIAN__) && !defined (__FLASHROM_LITTLE_ENDIAN__) -#error Unable to determine endianness. -#endif - #define ___constant_swab8(x) ((uint8_t) ( \ (((uint8_t)(x) & (uint8_t)0xffU)))) |