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.maydell@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20210813131809.28655-4-peter.maydell@linaro.org> Signed-off-by: Laurent Vivier <laurent@vivier.eu> |
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nwfpe | ||
cpu_loop.c | ||
meson.build | ||
signal.c | ||
sockbits.h | ||
syscall.tbl | ||
syscallhdr.sh | ||
target_cpu.h | ||
target_elf.h | ||
target_errno_defs.h | ||
target_fcntl.h | ||
target_signal.h | ||
target_structs.h | ||
target_syscall.h | ||
termbits.h |