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[PULL 16/40] bsd-user/signal.c: implement abstract target / host signal
From: |
Warner Losh |
Subject: |
[PULL 16/40] bsd-user/signal.c: implement abstract target / host signal translation |
Date: |
Mon, 31 Jan 2022 12:56:12 -0700 |
Implement host_to_target_signal and target_to_host_signal.
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>
---
bsd-user/signal-common.h | 2 ++
bsd-user/signal.c | 16 ++++++++++++++++
2 files changed, 18 insertions(+)
diff --git a/bsd-user/signal-common.h b/bsd-user/signal-common.h
index f9a9d1e01aa..efed23d9efb 100644
--- a/bsd-user/signal-common.h
+++ b/bsd-user/signal-common.h
@@ -13,8 +13,10 @@ long do_rt_sigreturn(CPUArchState *env);
abi_long do_sigaltstack(abi_ulong uss_addr, abi_ulong uoss_addr, abi_ulong sp);
long do_sigreturn(CPUArchState *env);
void force_sig_fault(int sig, int code, abi_ulong addr);
+int host_to_target_signal(int sig);
void process_pending_signals(CPUArchState *env);
void queue_signal(CPUArchState *env, int sig, target_siginfo_t *info);
void signal_init(void);
+int target_to_host_signal(int sig);
#endif
diff --git a/bsd-user/signal.c b/bsd-user/signal.c
index 844dfa19095..1313baec96a 100644
--- a/bsd-user/signal.c
+++ b/bsd-user/signal.c
@@ -2,6 +2,7 @@
* Emulation of BSD signals
*
* Copyright (c) 2003 - 2008 Fabrice Bellard
+ * Copyright (c) 2013 Stacey Son
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
@@ -27,6 +28,21 @@
* fork.
*/
+/*
+ * The BSD ABIs use the same singal numbers across all the CPU architectures,
so
+ * (unlike Linux) these functions are just the identity mapping. This might not
+ * be true for XyzBSD running on AbcBSD, which doesn't currently work.
+ */
+int host_to_target_signal(int sig)
+{
+ return sig;
+}
+
+int target_to_host_signal(int sig)
+{
+ return sig;
+}
+
/*
* Queue a signal so that it will be send to the virtual CPU as soon as
* possible.
--
2.33.1
- [PULL 26/40] bsd-user/signal.c: Implement host_signal_handler, (continued)
- [PULL 26/40] bsd-user/signal.c: Implement host_signal_handler, Warner Losh, 2022/01/31
- [PULL 23/40] bsd-user: Add trace events for bsd-user, Warner Losh, 2022/01/31
- [PULL 31/40] bsd-user/signal.c: setup_frame, Warner Losh, 2022/01/31
- [PULL 17/40] bsd-user/signal.c: Implement signal_init(), Warner Losh, 2022/01/31
- [PULL 20/40] bsd-user/host/i386/host-signal.h: Implement host_signal_*, Warner Losh, 2022/01/31
- [PULL 02/40] bsd-user: Create setup_sigframe_arch to setup sigframe context, Warner Losh, 2022/01/31
- [PULL 15/40] bsd-user/arm/target_arch_cpu.h: Implement data faults, Warner Losh, 2022/01/31
- [PULL 27/40] bsd-user/strace.c: print_taken_signal, Warner Losh, 2022/01/31
- [PULL 28/40] bsd-user/signal.c: Implement dump_core_and_abort, Warner Losh, 2022/01/31
- [PULL 34/40] bsd-user/signal.c: process_pending_signals, Warner Losh, 2022/01/31
- [PULL 16/40] bsd-user/signal.c: implement abstract target / host signal translation,
Warner Losh <=
- [PULL 13/40] bsd-user/arm/target_arch_cpu.h: Correct code pointer, Warner Losh, 2022/01/31
- [PULL 32/40] bsd-user/signal.c: handle_pending_signal, Warner Losh, 2022/01/31
- [PULL 33/40] bsd-user/signal.c: tswap_siginfo, Warner Losh, 2022/01/31
- [PULL 08/40] bsd-user/signal.c: implement force_sig_fault, Warner Losh, 2022/01/31
- [PULL 40/40] bsd-user/freebsd/target_os_ucontext.h: Prefer env as arg name for CPUArchState args, Warner Losh, 2022/01/31
- [PULL 38/40] MAINTAINERS: Add tests/vm/*bsd to the list to get reviews on, Warner Losh, 2022/01/31
- [PULL 18/40] bsd-user/signal.c: Add si_type argument to queue_signal, Warner Losh, 2022/01/31
- [PULL 25/40] bsd-user/signal.c: Implement rewind_if_in_safe_syscall, Warner Losh, 2022/01/31
- [PULL 03/40] bsd-user/arm/signal.c: Implement setup_sigframe_arch for arm, Warner Losh, 2022/01/31
- [PULL 22/40] bsd-user: Add host signals to the build, Warner Losh, 2022/01/31