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Replace config-time define HOST_WORDS_BIGENDIAN

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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>
This commit is contained in:
Marc-André Lureau 2022-03-23 19:57:17 +04:00 • committed by Paolo Bonzini
parent 3f6c2e8b79
commit e03b56863d
84 changed files with 173 additions and 174 deletions
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4
target/ppc/kvm.c
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@ -632,7 +632,7 @@ static int kvm_put_fp(CPUState *cs)
uint64_t *fpr = cpu_fpr_ptr(&cpu->env, i);
uint64_t *vsrl = cpu_vsrl_ptr(&cpu->env, i);
#ifdef HOST_WORDS_BIGENDIAN
#if HOST_BIG_ENDIAN
vsr[0] = float64_val(*fpr);
vsr[1] = *vsrl;
#else
@ -710,7 +710,7 @@ static int kvm_get_fp(CPUState *cs)
strerror(errno));
return ret;
} else {
#ifdef HOST_WORDS_BIGENDIAN
#if HOST_BIG_ENDIAN
*fpr = vsr[0];
if (vsx) {
*vsrl = vsr[1];