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authorThomas Huth <thuth@redhat.com>2021-03-23 16:52:57 +0000
committerAlex Bennée <alex.bennee@linaro.org>2021-03-24 14:25:28 +0000
commitbceac54752d20eb99013bec854db70b3e2154ef5 (patch)
tree0216c784f74d2816057e43dba0ff08367eb9565d /.cirrus.yml
parent65aff82076a9bbfdf70b1256c68c2f53b123e222 (diff)
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configure: Don't use the __atomic_*_16 functions for testing 128-bit support
The test for 128-bit atomics is causing trouble with FreeBSD 12.2 and --enable-werror: cc -Werror -fPIE -DPIE -std=gnu99 -Wall -m64 -mcx16 -D_GNU_SOURCE -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE -Wstrict-prototypes -Wredundant-decls -Wundef -Wwrite-strings -Wmissing-prototypes -fno-strict-aliasing -fno-common -fwrapv -Wold-style-definition -Wtype-limits -Wformat-security -Wformat-y2k -Winit-self -Wignored-qualifiers -Wempty-body -Wnested-externs -Wendif-labels -Wexpansion-to-defined -Wno-initializer-overrides -Wno-missing-include-dirs -Wno-shift-negative-value -Wno-string-plus-int -Wno-typedef-redefinition -Wno-tautological-type-limit-compare -fstack-protector-strong -o config-temp/qemu-conf.exe config-temp/qemu-conf.c -pie -Wl,-z,relro -Wl,-z,now -m64 -fstack-protector-strong config-temp/qemu-conf.c:4:7: error: implicit declaration of function '__atomic_load_16' is invalid in C99 [-Werror,-Wimplicit-function-declaration] y = __atomic_load_16(&x, 0); ^ config-temp/qemu-conf.c:5:3: error: implicit declaration of function '__atomic_store_16' is invalid in C99 [-Werror,-Wimplicit-function-declaration] __atomic_store_16(&x, y, 0); ^ config-temp/qemu-conf.c:5:3: note: did you mean '__atomic_load_16'? config-temp/qemu-conf.c:4:7: note: '__atomic_load_16' declared here y = __atomic_load_16(&x, 0); ^ config-temp/qemu-conf.c:6:3: error: implicit declaration of function '__atomic_compare_exchange_16' is invalid in C99 [-Werror,-Wimplicit-function-declaration] __atomic_compare_exchange_16(&x, &y, x, 0, 0, 0); ^ 3 errors generated. Looking for they way we are using atomic functions in QEMU, we are not using these functions with the _16 suffix anyway. Switch to the same functions that we use in the include/qemu/atomic.h header. Signed-off-by: Thomas Huth <thuth@redhat.com> Signed-off-by: Alex Bennée <alex.bennee@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Acked-by: Paolo Bonzini <pbonzini@redhat.com> Message-Id: <20210317110512.583747-2-thuth@redhat.com> Message-Id: <20210323165308.15244-12-alex.bennee@linaro.org>
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