Replace config-time define HOST_WORDS_BIGENDIAN

Replace a config-time define with a compile time condition
define (compatible with clang and gcc) that must be declared prior to
its usage. This avoids having a global configure time define, but also
prevents from bad usage, if the config header wasn't included before.

This can help to make some code independent from qemu too.

gcc supports __BYTE_ORDER__ from about 4.6 and clang from 3.2.

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
[ For the s390x parts I'm involved in ]
Acked-by: Halil Pasic <pasic@linux.ibm.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20220323155743.1585078-7-marcandre.lureau@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

1 files changed, 11 insertions, 11 deletions

diff --git a/target/ppc/int_helper.c b/target/ppc/int_helper.c
index 492f34c..8c16745 100644
--- a/target/ppc/int_helper.c
+++ b/target/ppc/int_helper.c
@@ -425,7 +425,7 @@ uint64_t helper_PEXTD(uint64_t src, uint64_t mask)
 
 /*****************************************************************************/
 /* Altivec extension helpers */
-#if defined(HOST_WORDS_BIGENDIAN)
+#if HOST_BIG_ENDIAN
 #define VECTOR_FOR_INORDER_I(index, element)                    \
     for (index = 0; index < ARRAY_SIZE(r->element); index++)
 #else
@@ -1177,7 +1177,7 @@ XXGENPCV(XXGENPCVDM, 8)
 #undef XXGENPCV_LE_COMP
 #undef XXGENPCV
 
-#if defined(HOST_WORDS_BIGENDIAN)
+#if HOST_BIG_ENDIAN
 #define VBPERMQ_INDEX(avr, i) ((avr)->u8[(i)])
 #define VBPERMD_INDEX(i) (i)
 #define VBPERMQ_DW(index) (((index) & 0x40) != 0)
@@ -1298,7 +1298,7 @@ void helper_vpmsumd(ppc_avr_t *r, ppc_avr_t *a, ppc_avr_t *b)
 }
 
 
-#if defined(HOST_WORDS_BIGENDIAN)
+#if HOST_BIG_ENDIAN
 #define PKBIG 1
 #else
 #define PKBIG 0
@@ -1307,7 +1307,7 @@ void helper_vpkpx(ppc_avr_t *r, ppc_avr_t *a, ppc_avr_t *b)
 {
     int i, j;
     ppc_avr_t result;
-#if defined(HOST_WORDS_BIGENDIAN)
+#if HOST_BIG_ENDIAN
     const ppc_avr_t *x[2] = { a, b };
 #else
     const ppc_avr_t *x[2] = { b, a };
@@ -1516,7 +1516,7 @@ void helper_vslo(ppc_avr_t *r, ppc_avr_t *a, ppc_avr_t *b)
 {
     int sh = (b->VsrB(0xf) >> 3) & 0xf;
 
-#if defined(HOST_WORDS_BIGENDIAN)
+#if HOST_BIG_ENDIAN
     memmove(&r->u8[0], &a->u8[sh], 16 - sh);
     memset(&r->u8[16 - sh], 0, sh);
 #else
@@ -1525,7 +1525,7 @@ void helper_vslo(ppc_avr_t *r, ppc_avr_t *a, ppc_avr_t *b)
 #endif
 }
 
-#if defined(HOST_WORDS_BIGENDIAN)
+#if HOST_BIG_ENDIAN
 #define ELEM_ADDR(VEC, IDX, SIZE) (&(VEC)->u8[IDX])
 #else
 #define ELEM_ADDR(VEC, IDX, SIZE) (&(VEC)->u8[15 - (IDX)] - (SIZE) + 1)
@@ -1554,7 +1554,7 @@ VINSX(W, uint32_t)
 VINSX(D, uint64_t)
 #undef ELEM_ADDR
 #undef VINSX
-#if defined(HOST_WORDS_BIGENDIAN)
+#if HOST_BIG_ENDIAN
 #define VEXTDVLX(NAME, SIZE) \
 void helper_##NAME(CPUPPCState *env, ppc_avr_t *t, ppc_avr_t *a, ppc_avr_t *b, \
                    target_ulong index)                                         \
@@ -1593,7 +1593,7 @@ VEXTDVLX(VEXTDUHVLX, 2)
 VEXTDVLX(VEXTDUWVLX, 4)
 VEXTDVLX(VEXTDDVLX, 8)
 #undef VEXTDVLX
-#if defined(HOST_WORDS_BIGENDIAN)
+#if HOST_BIG_ENDIAN
 #define VEXTRACT(suffix, element)                                            \
     void helper_vextract##suffix(ppc_avr_t *r, ppc_avr_t *b, uint32_t index) \
     {                                                                        \
@@ -1750,7 +1750,7 @@ void helper_vsro(ppc_avr_t *r, ppc_avr_t *a, ppc_avr_t *b)
 {
     int sh = (b->VsrB(0xf) >> 3) & 0xf;
 
-#if defined(HOST_WORDS_BIGENDIAN)
+#if HOST_BIG_ENDIAN
     memmove(&r->u8[sh], &a->u8[0], 16 - sh);
     memset(&r->u8[0], 0, sh);
 #else
@@ -1867,7 +1867,7 @@ void helper_vsum4ubs(CPUPPCState *env, ppc_avr_t *r, ppc_avr_t *a, ppc_avr_t *b)
     }
 }
 
-#if defined(HOST_WORDS_BIGENDIAN)
+#if HOST_BIG_ENDIAN
 #define UPKHI 1
 #define UPKLO 0
 #else
@@ -1974,7 +1974,7 @@ VGENERIC_DO(popcntd, u64)
 
 #undef VGENERIC_DO
 
-#if defined(HOST_WORDS_BIGENDIAN)
+#if HOST_BIG_ENDIAN
 #define QW_ONE { .u64 = { 0, 1 } }
 #else
 #define QW_ONE { .u64 = { 1, 0 } }