linux-user: stack_base is now mandatory on all targets
[qemu.git] / compatfd.h
1 /*
2 * signalfd/eventfd compatibility
3 *
4 * Copyright IBM, Corp. 2008
5 *
6 * Authors:
7 * Anthony Liguori <aliguori@us.ibm.com>
8 *
9 * This work is licensed under the terms of the GNU GPL, version 2. See
10 * the COPYING file in the top-level directory.
11 *
12 */
13
14 #ifndef QEMU_COMPATFD_H
15 #define QEMU_COMPATFD_H
16
17 #include <signal.h>
18
19 struct qemu_signalfd_siginfo {
20 uint32_t ssi_signo; /* Signal number */
21 int32_t ssi_errno; /* Error number (unused) */
22 int32_t ssi_code; /* Signal code */
23 uint32_t ssi_pid; /* PID of sender */
24 uint32_t ssi_uid; /* Real UID of sender */
25 int32_t ssi_fd; /* File descriptor (SIGIO) */
26 uint32_t ssi_tid; /* Kernel timer ID (POSIX timers) */
27 uint32_t ssi_band; /* Band event (SIGIO) */
28 uint32_t ssi_overrun; /* POSIX timer overrun count */
29 uint32_t ssi_trapno; /* Trap number that caused signal */
30 int32_t ssi_status; /* Exit status or signal (SIGCHLD) */
31 int32_t ssi_int; /* Integer sent by sigqueue(2) */
32 uint64_t ssi_ptr; /* Pointer sent by sigqueue(2) */
33 uint64_t ssi_utime; /* User CPU time consumed (SIGCHLD) */
34 uint64_t ssi_stime; /* System CPU time consumed (SIGCHLD) */
35 uint64_t ssi_addr; /* Address that generated signal
36 (for hardware-generated signals) */
37 uint8_t pad[48]; /* Pad size to 128 bytes (allow for
38 additional fields in the future) */
39 };
40
41 int qemu_signalfd(const sigset_t *mask);
42 bool qemu_signalfd_available(void);
43
44 #endif