bsd-user: *BSD specific siginfo defintions

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 <sson@FreeBSD.org>
Signed-off-by: Warner Losh <imp@bsdimp.com>
Acked-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Kyle Evans <kevans@FreeBSD.org>

1 files changed, 145 insertions, 0 deletions

diff --git a/bsd-user/freebsd/target_os_siginfo.h b/bsd-user/freebsd/target_os_siginfo.h
new file mode 100644
index 0000000000..84944faa4d
--- /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 <http://www.gnu.org/licenses/>.
+ */
+#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_long    ss_sp;
+    abi_ulong   ss_size;
+    abi_long    ss_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) /* Illegal trap. */
+#define TARGET_ILL_PRVOPC   (5) /* Privileged opcode. */
+#define TARGET_ILL_PRVREG   (6) /* Privileged register. */
+#define TARGET_ILL_COPROC   (7) /* Coprocessor error. */
+#define TARGET_ILL_BADSTK   (8) /* Internal stack error. */
+
+/* SIGSEGV si_codes */
+#define TARGET_SEGV_MAPERR  (1) /* address not mapped to object */
+#define TARGET_SEGV_ACCERR  (2) /* invalid permissions for mapped object */
+
+/* SIGTRAP si_codes */
+#define TARGET_TRAP_BRKPT   (1) /* process beakpoint */
+#define TARGET_TRAP_TRACE   (2) /* process trace trap */
+
+/* SIGBUS si_codes */
+#define TARGET_BUS_ADRALN   (1)
+#define TARGET_BUS_ADRERR   (2)
+#define TARGET_BUS_OBJERR   (3)
+
+/* SIGFPE codes */
+#define TARGET_FPE_INTOVF   (1) /* Integer overflow. */
+#define TARGET_FPE_INTDIV   (2) /* Integer divide by zero. */
+#define TARGET_FPE_FLTDIV   (3) /* Floating point divide by zero. */
+#define TARGET_FPE_FLTOVF   (4) /* Floating point overflow. */
+#define TARGET_FPE_FLTUND   (5) /* Floating point underflow. */
+#define TARGET_FPE_FLTRES   (6) /* Floating point inexact result. */
+#define TARGET_FPE_FLTINV   (7) /* Invalid floating point operation. */
+#define TARGET_FPE_FLTSUB   (8) /* Subscript out of range. */
+
+#endif /* !_TARGET_OS_SIGINFO_H_ */