| Message ID | 20220109161923.85683-5-imp@bsdimp.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | bsd-user: upstream our signal implementation | expand |
On Sun, 9 Jan 2022 at 16:26, Warner Losh <imp@bsdimp.com> wrote: > > First attempt at implementing cpu_loop_exit_sigbus, mostly copied from > linux-user version of this function. > > Signed-off-by: Stacey Son <sson@FreeBSD.org> > Signed-off-by: Kyle Evans <kevans@freebsd.org> > Signed-off-by: Warner Losh <imp@bsdimp.com> > --- Reviewed-by: Peter Maydell <peter.maydell@linaro.org> thanks -- PMM
On 1/10/22 3:18 AM, Warner Losh wrote: > First attempt at implementing cpu_loop_exit_sigbus, mostly copied from > linux-user version of this function. > > Signed-off-by: Stacey Son<sson@FreeBSD.org> > Signed-off-by: Kyle Evans<kevans@freebsd.org> > Signed-off-by: Warner Losh<imp@bsdimp.com> > --- > bsd-user/signal.c | 12 +++++++++--- > 1 file changed, 9 insertions(+), 3 deletions(-) Reviewed-by: Richard Henderson <richard.henderson@linaro.org> r~
diff --git a/bsd-user/signal.c b/bsd-user/signal.c index 12de0e2dea4..844dfa19095 100644 --- a/bsd-user/signal.c +++ b/bsd-user/signal.c @@ -80,7 +80,13 @@ void cpu_loop_exit_sigsegv(CPUState *cpu, target_ulong addr, void cpu_loop_exit_sigbus(CPUState *cpu, target_ulong addr, MMUAccessType access_type, uintptr_t ra) { - qemu_log_mask(LOG_UNIMP, "No signal support for SIGBUS\n"); - /* unreachable */ - abort(); + const struct TCGCPUOps *tcg_ops = CPU_GET_CLASS(cpu)->tcg_ops; + + if (tcg_ops->record_sigbus) { + tcg_ops->record_sigbus(cpu, addr, access_type, ra); + } + + force_sig_fault(TARGET_SIGBUS, TARGET_BUS_ADRALN, addr); + cpu->exception_index = EXCP_INTERRUPT; + cpu_loop_exit_restore(cpu, ra); }