[libdrm,v2,01/10] intel: Improve checks for big-endian

Commit Message

Geert Uytterhoeven July 8, 2022, 6:21 p.m. UTC

- sparc64-linux-gnu-gcc does not define __BIG_ENDIAN__ or SPARC, but
    does define __sparc__, hence replace the check for SPARC by a check
    for __sparc__,
  - powerpc{,64,64}-linux-gnu-gcc does not define __ppc__ or __ppc64__,
    but does define __BIG_ENDIAN__.
    powerpc64le-linux-gnu-gcc does not define __ppc__ or __ppc64__, but
    does define __LITTLE_ENDIAN__.
    Hence remove the checks for __ppc__ and __ppc64__.
  - arm-linux-gnueabi-gcc and aarch64-linux-gnu-gcc do not define
    __BIG_ENDIAN__ for targets in big-endian mode, but do define
    __ARM_BIG_ENDIAN, so add a check for the latter,
  - m68k-linux-gnu-gcc does not define __BIG_ENDIAN__, but does define
    __mc68000__, so add a check for the latter,
  - mips{,64}-linux-gnu{,abi64}-gcc does not define __BIG_ENDIAN__, but
    does define __MIPSEB__, so add a check for the latter,
  - s390x-linux-gnu-gcc does not define __BIG_ENDIAN__, but does define
    __s390__, so add a check for the latter,
  - hppa{,64}-linux-gnu-gcc, microblaze-linux-gcc, and sh4-linux-gnu-gcc
    in big-endian mode do define __BIG_ENDIAN__, and thus should work
    out-of-the-box.

Signed-off-by: Geert Uytterhoeven <[e-mail]>
---
Untested due to lack of hardware.

v2:
  - Add arm, aarch64, microblaze, s390, and sh.
---
 intel/uthash.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

Patch

diff --git a/intel/uthash.h b/intel/uthash.h
index 45d1f9fc12a1d6f9..a8465f23ff9fbcac 100644
--- a/intel/uthash.h
+++ b/intel/uthash.h
@@ -648,7 +648,7 @@  do {
 #define MUR_PLUS2_ALIGNED(p) (((unsigned long)p & 3UL) == 2UL)
 #define MUR_PLUS3_ALIGNED(p) (((unsigned long)p & 3UL) == 3UL)
 #define WP(p) ((uint32_t*)((unsigned long)(p) & ~3UL))
-#if (defined(__BIG_ENDIAN__) || defined(SPARC) || defined(__ppc__) || defined(__ppc64__))
+#if (defined(__BIG_ENDIAN__) || defined(__ARM_BIG_ENDIAN) || defined(__mc68000__) || defined(__MIPSEB__) || defined(__s390__) || defined(__sparc__))
 #define MUR_THREE_ONE(p) ((((*WP(p))&0x00ffffff) << 8) | (((*(WP(p)+1))&0xff000000) >> 24))
 #define MUR_TWO_TWO(p)   ((((*WP(p))&0x0000ffff) <<16) | (((*(WP(p)+1))&0xffff0000) >> 16))
 #define MUR_ONE_THREE(p) ((((*WP(p))&0x000000ff) <<24) | (((*(WP(p)+1))&0xffffff00) >>  8))