qemu/linux-user/mips
Aleksandar Markovic 64ce541c0b linux-user: Handle EXCP_FPE properly for MIPS
Handle EXCP_FPE properly for MIPS in cpu loop.

Note that a vast majority of FP instructions are not affected by
the absence of the code in this patch, as they use alternative code
paths for handling floating point exceptions (see, for example,
invocations of update_fcr31()) - they rely on softfloat library for
keeping track on exceptions that needs to be raised. However, there
are few MIPS FP instructions (an example is CTC1) that use function
do_raise_exception() directly, and they need the case that is added
in this patch to propagate the FPE exception as designed.

The code is based on kernel's function force_fcr31_sig() in
arch/mips/kernel.traps.c.

Reported-by: Yunqiang Su <ysu@wavecomp.com>
Signed-off-by: Aleksandar Markovic <amarkovic@wavecomp.com>
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Message-Id: <1561718618-20218-6-git-send-email-aleksandar.markovic@rt-rk.com>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2019-07-02 16:56:46 +02:00
..
cpu_loop.c linux-user: Handle EXCP_FPE properly for MIPS 2019-07-02 16:56:46 +02:00
signal.c linux-user: move get_sp_from_cpustate() to target_cpu.h 2018-06-04 01:30:44 +02:00
sockbits.h linux-user: define TARGET_SO_REUSEPORT 2018-05-25 10:10:55 +02:00
syscall_nr.h Supply missing header guards 2019-06-12 13:20:21 +02:00
target_cpu.h linux-user: move get_sp_from_cpustate() to target_cpu.h 2018-06-04 01:30:44 +02:00
target_elf.h linux-user/mips: Recognize the R5900 CPU model 2018-10-24 15:20:31 +02:00
target_fcntl.h linux-user: Introduce TARGET_HAVE_ARCH_STRUCT_FLOCK 2019-07-02 16:56:46 +02:00
target_signal.h linux-user: move mips signal definitions to mips/target_signal.h 2018-06-04 01:30:44 +02:00
target_structs.h linux-user: Fix structure target_semid64_ds definition for Mips 2016-09-23 07:07:33 +01:00
target_syscall.h linux-user: Add prctl() PR_SET_FP_MODE and PR_GET_FP_MODE implementations 2018-10-29 15:50:31 +01:00
termbits.h Supply missing header guards 2019-06-12 13:20:21 +02:00