Re: [PATCH for 6.2 32/49] bsd-user: *BSD specific siginfo defintions

[Richard Henderson]

On 8/7/21 11:42 AM, Warner Losh wrote:

From: Warner Losh

Add FreeBSD, NetBSD and OpenBSD values for the various signal info types
and defines to decode different signals to discover more information
about the specific signal types.

Signed-off-by: Stacey Son
Signed-off-by: Warner Losh
---


Acked-by: Richard Henderson 

r~

[PATCH for 6.2 32/49] bsd-user: *BSD specific siginfo defintions

[Warner Losh]

From: Warner Losh 

Add FreeBSD, NetBSD and OpenBSD values for the various signal info types
and defines to decode different signals to discover more information
about the specific signal types.

Signed-off-by: Stacey Son 
Signed-off-by: Warner Losh 
---
 bsd-user/freebsd/target_os_siginfo.h | 145 +++
 bsd-user/freebsd/target_os_signal.h  |  78 ++
 bsd-user/i386/target_arch_signal.h   |  94 +
 bsd-user/netbsd/target_os_siginfo.h  |  82 +++
 bsd-user/netbsd/target_os_signal.h   |  70 +
 bsd-user/openbsd/target_os_siginfo.h |  82 +++
 bsd-user/openbsd/target_os_signal.h  |  70 +
 bsd-user/qemu.h  |   3 +-
 bsd-user/syscall_defs.h  |  10 --
 bsd-user/x86_64/target_arch_signal.h |  94 +
 10 files changed, 716 insertions(+), 12 deletions(-)
 create mode 100644 bsd-user/freebsd/target_os_siginfo.h
 create mode 100644 bsd-user/freebsd/target_os_signal.h
 create mode 100644 bsd-user/i386/target_arch_signal.h
 create mode 100644 bsd-user/netbsd/target_os_siginfo.h
 create mode 100644 bsd-user/netbsd/target_os_signal.h
 create mode 100644 bsd-user/openbsd/target_os_siginfo.h
 create mode 100644 bsd-user/openbsd/target_os_signal.h
 create mode 100644 bsd-user/x86_64/target_arch_signal.h

diff --git a/bsd-user/freebsd/target_os_siginfo.h 
b/bsd-user/freebsd/target_os_siginfo.h
new file mode 100644
index 00..d12b2e213e
--- /dev/null
+++ b/bsd-user/freebsd/target_os_siginfo.h
@@ -0,0 +1,145 @@
+/*
+ *  FreeBSD siginfo related definitions
+ *
+ *  Copyright (c) 2013 Stacey D. 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
+ *  the Free Software Foundation; either version 2 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, see .
+ */
+#ifndef _TARGET_OS_SIGINFO_H_
+#define _TARGET_OS_SIGINFO_H_
+
+#define TARGET_NSIG 128
+#define TARGET_NSIG_BPW (sizeof(uint32_t) * 8)
+#define TARGET_NSIG_WORDS   (TARGET_NSIG / TARGET_NSIG_BPW)
+
+/* this struct defines a stack used during syscall handling */
+typedef struct target_sigaltstack {
+abi_longss_sp;
+abi_ulong   ss_size;
+abi_longss_flags;
+} target_stack_t;
+
+typedef struct {
+uint32_t __bits[TARGET_NSIG_WORDS];
+} target_sigset_t;
+
+struct target_sigaction {
+abi_ulong   _sa_handler;
+int32_t sa_flags;
+target_sigset_t sa_mask;
+};
+
+typedef union target_sigval {
+int32_t sival_int;
+abi_ulong sival_ptr;
+int32_t sigval_int;
+abi_ulong sigval_ptr;
+} target_sigval_t;
+
+typedef struct target_siginfo {
+int32_t si_signo;   /* signal number */
+int32_t si_errno;   /* errno association */
+int32_t si_code;/* signal code */
+int32_t si_pid; /* sending process */
+int32_t si_uid; /* sender's ruid */
+int32_t si_status;  /* exit value */
+abi_ulong si_addr;  /* faulting instruction */
+union target_sigval si_value;   /* signal value */
+union {
+struct {
+int32_t _trapno;/* machine specific trap code */
+} _fault;
+
+/* POSIX.1b timers */
+struct {
+int32_t _timerid;
+int32_t _overrun;
+} _timer;
+
+struct {
+int32_t _mqd;
+} _mesgp;
+
+/* SIGPOLL */
+struct {
+int _band;  /* POLL_IN, POLL_OUT, POLL_MSG */
+} _poll;
+
+struct {
+abi_long __spare1__;
+int32_t  __spare2_[7];
+} __spare__;
+} _reason;
+} target_siginfo_t;
+
+struct target_sigevent {
+abi_int sigev_notify;
+abi_int sigev_signo;
+target_sigval_t sigev_value;
+union {
+abi_int _threadid;
+
+/* The kernel (and thus QEMU) never looks at these;
+ * they're only used as part of the ABI between a
+ * userspace program and libc.
+ */
+struct {
+abi_ulong _function;
+abi_ulong _attribute;
+} _sigev_thread;
+abi_ushort _kevent_flags;
+abi_long _pad[8];
+} _sigev_un;
+};
+
+#define target_si_signo si_signo
+#define target_si_code  si_code
+#define target_si_errno si_errno
+#define target_si_addr  si_addr
+
+/* SIGILL si_codes */
+#define TARGET_ILL_ILLOPC   (1) /* Illegal opcode. */
+#define TARGET_ILL_ILLOPN   (2) /* Illegal operand. */
+#define TARGET_ILL_ILLADR   (3) /* Illegal addressing mode. */
+#define TARGET_ILL_ILLTRP   (4) /*