On 8/13/21 3:18 AM, Peter Maydell wrote:
In the Arm target code, when the fpa11 emulation code tells us we
need to send the guest a SIGFPE, we do this with queue_signal(), but
we are using the wrong si_type, and we aren't setting the _sifields
union members corresponding to either the si_type we are using or the
si_type we should be using.

As the existing comment notes, the kernel code for this calls the old
send_sig() function to deliver the signal.  This eventually results
in the kernel's signal handling code fabricating a siginfo_t with a
SI_KERNEL code and a zero pid and uid.  For QEMU this means we need
to use QEMU_SI_KILL.  We already have a function for that:
force_sig() sets up the whole target_siginfo_t the way we need it.

Signed-off-by: Peter Maydell<peter.mayd...@linaro.org>
---
  linux-user/arm/cpu_loop.c | 11 ++++-------
  1 file changed, 4 insertions(+), 7 deletions(-)

Reviewed-by: Richard Henderson <richard.hender...@linaro.org>

r~

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