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0ef5998973
Start to implement the force_sig_fault code. This currently just calls queue_signal(). The bsd-user fork version of that will handle this the synchronous nature of this call. Add signal-common.h to hold signal helper functions like force_sig_fault. 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> Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
77 lines
2.1 KiB
C
77 lines
2.1 KiB
C
/*
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* Emulation of BSD signals
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*
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* Copyright (c) 2003 - 2008 Fabrice Bellard
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, see <http://www.gnu.org/licenses/>.
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*/
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#include "qemu/osdep.h"
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#include "qemu.h"
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#include "signal-common.h"
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/*
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* Stubbed out routines until we merge signal support from bsd-user
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* fork.
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*/
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/*
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* Queue a signal so that it will be send to the virtual CPU as soon as
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* possible.
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*/
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void queue_signal(CPUArchState *env, int sig, target_siginfo_t *info)
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{
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qemu_log_mask(LOG_UNIMP, "No signal queueing, dropping signal %d\n", sig);
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}
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/*
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* Force a synchronously taken QEMU_SI_FAULT signal. For QEMU the
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* 'force' part is handled in process_pending_signals().
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*/
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void force_sig_fault(int sig, int code, abi_ulong addr)
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{
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CPUState *cpu = thread_cpu;
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CPUArchState *env = cpu->env_ptr;
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target_siginfo_t info = {};
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info.si_signo = sig;
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info.si_errno = 0;
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info.si_code = code;
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info.si_addr = addr;
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queue_signal(env, sig, &info);
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}
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void signal_init(void)
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{
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}
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void process_pending_signals(CPUArchState *cpu_env)
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{
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}
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void cpu_loop_exit_sigsegv(CPUState *cpu, target_ulong addr,
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MMUAccessType access_type, bool maperr, uintptr_t ra)
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{
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qemu_log_mask(LOG_UNIMP, "No signal support for SIGSEGV\n");
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/* unreachable */
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abort();
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}
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void cpu_loop_exit_sigbus(CPUState *cpu, target_ulong addr,
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MMUAccessType access_type, uintptr_t ra)
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{
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qemu_log_mask(LOG_UNIMP, "No signal support for SIGBUS\n");
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/* unreachable */
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abort();
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}
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