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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
tcg/tcg-op.c
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@ -1156,7 +1156,7 @@ void tcg_gen_ld_i64(TCGv_i64 ret, TCGv_ptr arg2, tcg_target_long offset)
{
/* Since arg2 and ret have different types,
they cannot be the same temporary */
#ifdef HOST_WORDS_BIGENDIAN
#if HOST_BIG_ENDIAN
tcg_gen_ld_i32(TCGV_HIGH(ret), arg2, offset);
tcg_gen_ld_i32(TCGV_LOW(ret), arg2, offset + 4);
#else
@ -1167,7 +1167,7 @@ void tcg_gen_ld_i64(TCGv_i64 ret, TCGv_ptr arg2, tcg_target_long offset)
void tcg_gen_st_i64(TCGv_i64 arg1, TCGv_ptr arg2, tcg_target_long offset)
{
#ifdef HOST_WORDS_BIGENDIAN
#if HOST_BIG_ENDIAN
tcg_gen_st_i32(TCGV_HIGH(arg1), arg2, offset);
tcg_gen_st_i32(TCGV_LOW(arg1), arg2, offset + 4);
#else