On 9/24/23 07:16, Mikulas Patocka wrote:
Qemu mips userspace emulation crashes with "qemu: unhandled CPU exception 0x15 - aborting" when one of the integer arithmetic instructions detects an overflow.This patch fixes it so that it delivers SIGFPE with FPE_INTOVF instead. Signed-off-by: Mikulas Patocka <mpato...@redhat.com> Cc: qemu-sta...@nongnu.org --- linux-user/mips/cpu_loop.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) Index: qemu/linux-user/mips/cpu_loop.c =================================================================== --- qemu.orig/linux-user/mips/cpu_loop.c +++ qemu/linux-user/mips/cpu_loop.c @@ -180,7 +180,9 @@ done_syscall: } force_sig_fault(TARGET_SIGFPE, si_code, env->active_tc.PC); break; - + case EXCP_OVERFLOW: + do_tr_or_bp(env, BRK_OVERFLOW, false); + break;
Just call force_sig_fault directly. r~
