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meson: ensure -mcx16 is passed when detecting ATOMIC128

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Moving -mcx16 out of CPU_CFLAGS caused the detection of ATOMIC128 to
fail, because flags have to be specified by hand in cc.compiles and
cc.links invocations (why oh why??).

Ensure that these tests enable all the instruction set extensions that
will be used to build the emulators.

Fixes: c2bf2ccb266 ("configure: move -mcx16 flag out of CPU_CFLAGS", 2024-05-24)
Reported-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Michael Tokarev <mjt@tls.msk.ru>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Tested-by: Alex Bennée <alex.bennee@linaro.org>
Cc: qemu-stable@nongnu.org
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
(cherry picked from commit 8db4e0f92e83fd80b6609439440b303ddded7ad8)
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
This commit is contained in:
Paolo Bonzini 2024-10-06 09:44:00 +02:00 committed by Michael Tokarev
parent 22359e0e6e
commit 997f8d5c2b
1 changed files with 5 additions and 4 deletions
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meson.build
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@ -2795,7 +2795,7 @@ config_host_data.set('CONFIG_ATOMIC64', cc.links('''
__atomic_exchange_n(&x, y, __ATOMIC_RELAXED);
__atomic_fetch_add(&x, y, __ATOMIC_RELAXED);
return 0;
}'''))
}''', args: qemu_isa_flags))
has_int128_type = cc.compiles('''
__int128_t a;
@ -2829,7 +2829,7 @@ if has_int128_type
__atomic_compare_exchange_n(&p[4], &p[5], p[6], 0, __ATOMIC_RELAXED, __ATOMIC_RELAXED);
return 0;
}'''
has_atomic128 = cc.links(atomic_test_128)
has_atomic128 = cc.links(atomic_test_128, args: qemu_isa_flags)
config_host_data.set('CONFIG_ATOMIC128', has_atomic128)
@ -2838,7 +2838,8 @@ if has_int128_type
# without optimization enabled. Try again with optimizations locally
# enabled for the function. See
# https://gcc.gnu.org/bugzilla/show_bug.cgi?id=107389
has_atomic128_opt = cc.links('__attribute__((optimize("O1")))' + atomic_test_128)
has_atomic128_opt = cc.links('__attribute__((optimize("O1")))' + atomic_test_128,
args: qemu_isa_flags)
config_host_data.set('CONFIG_ATOMIC128_OPT', has_atomic128_opt)
if not has_atomic128_opt
@ -2849,7 +2850,7 @@ if has_int128_type
__sync_val_compare_and_swap_16(&x, y, x);
return 0;
}
'''))
''', args: qemu_isa_flags))
endif
endif
endif