OpenSolaris_b135/lib/brand/lx/lx_brand/sys/lx_signal.h
/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License (the "License").
* You may not use this file except in compliance with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/*
* Copyright 2007 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
#ifndef _SYS_LX_SIGNAL_H
#define _SYS_LX_SIGNAL_H
#pragma ident "%Z%%M% %I% %E% SMI"
#if !defined(_ASM)
#include <sys/lx_types.h>
#include <lx_signum.h>
#endif /* !defined(_ASM) */
#ifdef __cplusplus
extern "C" {
#endif
/*
* Linux sigaction flags
*/
#define LX_SA_NOCLDSTOP 0x00000001
#define LX_SA_NOCLDWAIT 0x00000002
#define LX_SA_SIGINFO 0x00000004
#define LX_SA_RESTORER 0x04000000
#define LX_SA_ONSTACK 0x08000000
#define LX_SA_RESTART 0x10000000
#define LX_SA_NODEFER 0x40000000
#define LX_SA_RESETHAND 0x80000000
#define LX_SA_NOMASK LX_SA_NODEFER
#define LX_SA_ONESHOT LX_SA_RESETHAND
#define LX_SIG_BLOCK 0
#define LX_SIG_UNBLOCK 1
#define LX_SIG_SETMASK 2
#define LX_MINSIGSTKSZ 2048
#define LX_SS_ONSTACK 1
#define LX_SS_DISABLE 2
#define LX_SIGRT_MAGIC 0xdeadf00d
#if !defined(_ASM)
/*
* NOTE: Linux uses different definitions for sigset_ts and sigaction_ts
* depending on whether the definition is for user space or the kernel.
*
* The definitions below MUST correspond to the Linux kernel versions,
* as glibc will do the necessary translation from the Linux user
* versions.
*/
typedef struct {
ulong_t __bits[LX_NSIG_WORDS];
} lx_sigset_t;
#define LX_NBITS (sizeof (ulong_t) * NBBY)
#define lx_sigmask(n) (1UL << (((n) - 1) % LX_NBITS))
#define lx_sigword(n) (((ulong_t)((n) - 1))>>5)
#define lx_sigismember(s, n) (lx_sigmask(n) & (s)->__bits[lx_sigword(n)])
#define lx_sigaddset(s, n) ((s)->__bits[lx_sigword(n)] |= lx_sigmask(n))
typedef struct lx_sigaction {
void (*lxsa_handler)();
int lxsa_flags;
void (*lxsa_restorer)(void);
lx_sigset_t lxsa_mask;
} lx_sigaction_t;
typedef uint32_t lx_osigset_t;
#define OSIGSET_NBITS (sizeof (lx_osigset_t) * NBBY)
#define OSIGSET_BITSET(sig) (1U << (((sig) - 1) % OSIGSET_NBITS))
/*
* Flag settings to determine whether common routines should operate on
* lx_sigset_ts or lx_osigset_ts.
*/
#define USE_OSIGSET 0
#define USE_SIGSET 1
typedef struct lx_osigaction {
void (*lxsa_handler)();
lx_osigset_t lxsa_mask;
int lxsa_flags;
void (*lxsa_restorer)(void);
} lx_osigaction_t;
#define LX_SI_MAX_SIZE 128
#define LX_SI_PAD_SIZE ((LX_SI_MAX_SIZE/sizeof (int)) - 3)
typedef struct lx_siginfo {
int lsi_signo;
int lsi_errno;
int lsi_code;
union {
int _pad[LX_SI_PAD_SIZE];
struct {
pid_t _pid;
lx_uid16_t _uid;
} _kill;
struct {
uint_t _timer1;
uint_t _timer2;
} _timer;
struct {
pid_t _pid; /* sender's pid */
lx_uid16_t _uid; /* sender's uid */
union sigval _sigval;
} _rt;
struct {
pid_t _pid; /* which child */
lx_uid16_t _uid; /* sender's uid */
int _status; /* exit code */
clock_t _utime;
clock_t _stime;
} _sigchld;
struct {
void *_addr; /* faulting insn/memory ref. */
} _sigfault;
struct {
int _band; /* POLL_IN,POLL_OUT,POLL_MSG */
int _fd;
} _sigpoll;
} _sifields;
} lx_siginfo_t;
/*
* lx_siginfo_t lsi_code values
*
* LX_SI_ASYNCNL: Sent by asynch name lookup completion
* LX_SI_TKILL: Sent by tkill
* LX_SI_SIGIO: Sent by queued SIGIO
* LX_SI_ASYNCIO: Sent by asynchronous I/O completion
* LX_SI_MESGQ: Sent by real time message queue state change
* LX_SI_TIMER: Sent by timer expiration
* LX_SI_QUEUE: Sent by sigqueue
* LX_SI_USER: Sent by kill, sigsend, raise, etc.
* LX_SI_KERNEL: Sent by kernel
*
* At present, LX_SI_ASYNCNL and LX_SI_SIGIO are unused by BrandZ.
*/
#define LX_SI_ASYNCNL (-60)
#define LX_SI_TKILL (-6)
#define LX_SI_SIGIO (-5)
#define LX_SI_ASYNCIO (-4)
#define LX_SI_MESGQ (-3)
#define LX_SI_TIMER (-2)
#define LX_SI_QUEUE (-1)
#define LX_SI_USER (0)
#define LX_SI_KERNEL (0x80)
typedef struct lx_sighandlers {
struct lx_sigaction lx_sa[LX_NSIG];
} lx_sighandlers_t;
typedef struct lx_sigaltstack {
void *ss_sp;
int ss_flags;
size_t ss_size;
} lx_stack_t;
struct lx_fpreg {
ushort_t significand[4];
ushort_t exponent;
};
struct lx_fpxreg {
ushort_t significand[4];
ushort_t exponent;
ushort_t padding[3];
};
struct lx_xmmreg {
uint32_t element[4];
};
#define LX_X86_FXSR_MAGIC 0x0000
#define LX_X86_FXSR_NONE 0xffff
typedef struct lx_fpstate {
/* Regular FPU environment */
ulong_t cw;
ulong_t sw;
ulong_t tag;
ulong_t ipoff;
ulong_t cssel;
ulong_t dataoff;
ulong_t datasel;
struct lx_fpreg _st[8];
ushort_t status;
ushort_t magic; /* 0xffff = regular FPU data */
/* FXSR FPU environment */
ulong_t _fxsr_env[6]; /* env is ignored */
ulong_t mxcsr;
ulong_t reserved;
struct lx_fpxreg _fxsr_st[8]; /* reg data is ignored */
struct lx_xmmreg _xmm[8];
ulong_t padding[56];
} lx_fpstate_t;
typedef struct lx_sigcontext {
ulong_t sc_gs;
ulong_t sc_fs;
ulong_t sc_es;
ulong_t sc_ds;
ulong_t sc_edi;
ulong_t sc_esi;
ulong_t sc_ebp;
ulong_t sc_esp;
ulong_t sc_ebx;
ulong_t sc_edx;
ulong_t sc_ecx;
ulong_t sc_eax;
ulong_t sc_trapno;
ulong_t sc_err;
ulong_t sc_eip;
ulong_t sc_cs;
ulong_t sc_eflags;
ulong_t sc_esp_at_signal;
ulong_t sc_ss;
lx_fpstate_t *sc_fpstate;
ulong_t sc_mask;
ulong_t sc_cr2;
} lx_sigcontext_t;
typedef struct lx_ucontext {
ulong_t uc_flags;
struct lx_ucontext *uc_link;
lx_stack_t uc_stack;
lx_sigcontext_t uc_sigcontext;
lx_sigset_t uc_sigmask;
} lx_ucontext_t;
#define LX_SI_MAX_SIZE 128
#define LX_SI_PAD_SIZE ((LX_SI_MAX_SIZE/sizeof (int)) - 3)
#define lsi_pid _sifields._kill._pid
#define lsi_uid _sifields._kill._uid
#define lsi_status _sifields._sigchld._status
#define lsi_utime _sifields._sigchld._utime
#define lsi_stime _sifields._sigchld._stime
#define lsi_value _sifields._rt._sigval
#define lsi_int _sifields._rt._sigval.sivalx_int
#define lsi_ptr _sifields._rt._sigval.sivalx_ptr
#define lsi_addr _sifields._sigfault._addr
#define lsi_band _sifields._sigpoll._band
#define lsi_fd _sifields._sigpoll._fd
extern const int ltos_signo[];
extern const int stol_signo[];
extern void setsigacthandler(void (*)(int, siginfo_t *, void *),
void (**)(int, siginfo_t *, void *));
extern int lx_siginit(void);
extern void lx_sigreturn_tolibc(uintptr_t);
extern void lx_sigdeliver(int, siginfo_t *, void *, size_t, void (*)(),
void (*)(), uintptr_t);
extern int stol_siginfo(siginfo_t *siginfop, lx_siginfo_t *lx_siginfop);
#endif /* !defined(_ASM) */
#ifdef __cplusplus
}
#endif
#endif /* _SYS_LX_SIGNAL_H */