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When compiling qemu-fuzz-i386 on aarch64 host, clang reported the following
error:
../util/cacheflush.c:38:44: error: value size does not match register size
specified by the constraint and modifier [-Werror,-Wasm-operand-widths]
asm volatile("mrs\t%0, ctr_el0" : "=r"(save_ctr_el0));
^
../util/cacheflush.c:38:24: note: use constraint modifier "w"
asm volatile("mrs\t%0, ctr_el0" : "=r"(save_ctr_el0));
^~
%w0
Modify the type of save_ctr_el0 to uint64_t to fix it.
Reported-by: Euler Robot <euler.robot@huawei.com>
Signed-off-by: Gan Qixin <ganqixin@huawei.com>
Message-Id: <20210115075656.717957-1-ganqixin@huawei.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
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For darwin, the CTR_EL0 register is not accessible, but there
are system routines that we can use.
For other hosts, copy the single pointer implementation from
libgcc and modify it to support the double pointer interface
we require. This halves the number of cache operations required
when split-rwx is enabled.
Reviewed-by: Joelle van Dyne <j@getutm.app>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
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We are shortly going to have a split rw/rx jit buffer. Depending
on the host, we need to flush the dcache at the rw data pointer and
flush the icache at the rx code pointer.
For now, the two passed pointers are identical, so there is no
effective change in behaviour.
Reviewed-by: Joelle van Dyne <j@getutm.app>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
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This has been a tcg-specific function, but is also in use
by hardware accelerators via physmem.c. This can cause
link errors when tcg is disabled.
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Joelle van Dyne <j@getutm.app>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20201214140314.18544-3-richard.henderson@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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