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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
net/net.c
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@ -524,7 +524,7 @@ void qemu_set_vnet_hdr_len(NetClientState *nc, int len)
int qemu_set_vnet_le(NetClientState *nc, bool is_le)
{
#ifdef HOST_WORDS_BIGENDIAN
#if HOST_BIG_ENDIAN
if (!nc || !nc->info->set_vnet_le) {
return -ENOSYS;
}
@ -537,7 +537,7 @@ int qemu_set_vnet_le(NetClientState *nc, bool is_le)
int qemu_set_vnet_be(NetClientState *nc, bool is_be)
{
#ifdef HOST_WORDS_BIGENDIAN
#if HOST_BIG_ENDIAN
return 0;
#else
if (!nc || !nc->info->set_vnet_be) {