configure: Add -Wno-psabi
On aarch64, gcc 9.3 is generating qemu/exec.c: In function ‘address_space_translate_iommu’: qemu/exec.c:431:28: note: parameter passing for argument of type \ ‘MemTxAttrs’ {aka ‘struct MemTxAttrs’} changed in GCC 9.1 and many other repetitions. This structure, and the functions amongst which it is passed, are not part of a QEMU public API. Therefore we do not care how the compiler passes the argument, so long as the compiler is self-consistent. The only portion of QEMU which does have a public api, and so must have a stable abi, is "qemu/plugin.h". We test this by forcing -Wpsabi in tests/plugin/Makefile. Buglink: https://bugs.launchpad.net/qemu/+bug/1881552 Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-id: 20200617201309.1640952-6-richard.henderson@linaro.org Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
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@ -2055,6 +2055,7 @@ add_to nowarn_flags -Wno-shift-negative-value
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add_to nowarn_flags -Wno-string-plus-int
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add_to nowarn_flags -Wno-typedef-redefinition
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add_to nowarn_flags -Wno-tautological-type-limit-compare
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add_to nowarn_flags -Wno-psabi
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gcc_flags="$warn_flags $nowarn_flags"
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@ -17,7 +17,7 @@ NAMES += lockstep
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SONAMES := $(addsuffix .so,$(addprefix lib,$(NAMES)))
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QEMU_CFLAGS += -fPIC
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QEMU_CFLAGS += -fPIC -Wpsabi
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QEMU_CFLAGS += -I$(SRC_PATH)/include/qemu
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all: $(SONAMES)
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