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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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2
ui/vdagent.c
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@ -664,7 +664,7 @@ static void vdagent_chr_open(Chardev *chr,
VDAgentChardev *vd = QEMU_VDAGENT_CHARDEV(chr);
ChardevQemuVDAgent *cfg = backend->u.qemu_vdagent.data;
#if defined(HOST_WORDS_BIGENDIAN)
#if HOST_BIG_ENDIAN
/*
* TODO: vdagent protocol is defined to be LE,
* so we have to byteswap everything on BE hosts.