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ed3a06b10a
Perform the cleanup in the FIXME comment in common_semi_gdb_syscall. Do not modify guest registers until the syscall is complete, which in the gdbstub case is asynchronous. In the synchronous non-gdbstub case, use common_semi_set_ret to set the result. Merge set_swi_errno into common_semi_cb. Rely on the latter for combined return value / errno setting. Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>