8cb48fe169
Provide correct siginfo_t.si_stime on MIPS64 Bug description: MIPS version of copy_siginfo() is not aware of alignment on platforms with 64-bit long integers, which leads to an incorrect si_stime passed to signal handlers, because the last element (si_stime) of _sifields._sigchld is not copied. If _MIPS_SZLONG is 64, then the _sifields starts at the offset of 4 * sizeof(int). Patch description: Use the generic copy_siginfo, which doesn't have this problem. Signed-off-by: Petr Malat <oss@malat.biz> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/8671/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
123 lines
3 KiB
C
123 lines
3 KiB
C
/*
|
|
* This file is subject to the terms and conditions of the GNU General Public
|
|
* License. See the file "COPYING" in the main directory of this archive
|
|
* for more details.
|
|
*
|
|
* Copyright (C) 1998, 1999, 2001, 2003 Ralf Baechle
|
|
* Copyright (C) 2000, 2001 Silicon Graphics, Inc.
|
|
*/
|
|
#ifndef _UAPI_ASM_SIGINFO_H
|
|
#define _UAPI_ASM_SIGINFO_H
|
|
|
|
|
|
#define __ARCH_SIGEV_PREAMBLE_SIZE (sizeof(long) + 2*sizeof(int))
|
|
#undef __ARCH_SI_TRAPNO /* exception code needs to fill this ... */
|
|
|
|
#define HAVE_ARCH_SIGINFO_T
|
|
|
|
/*
|
|
* Careful to keep union _sifields from shifting ...
|
|
*/
|
|
#if _MIPS_SZLONG == 32
|
|
#define __ARCH_SI_PREAMBLE_SIZE (3 * sizeof(int))
|
|
#elif _MIPS_SZLONG == 64
|
|
#define __ARCH_SI_PREAMBLE_SIZE (4 * sizeof(int))
|
|
#else
|
|
#error _MIPS_SZLONG neither 32 nor 64
|
|
#endif
|
|
|
|
#define __ARCH_SIGSYS
|
|
|
|
#include <uapi/asm-generic/siginfo.h>
|
|
|
|
/* We can't use generic siginfo_t, because our si_code and si_errno are swapped */
|
|
typedef struct siginfo {
|
|
int si_signo;
|
|
int si_code;
|
|
int si_errno;
|
|
int __pad0[SI_MAX_SIZE / sizeof(int) - SI_PAD_SIZE - 3];
|
|
|
|
union {
|
|
int _pad[SI_PAD_SIZE];
|
|
|
|
/* kill() */
|
|
struct {
|
|
pid_t _pid; /* sender's pid */
|
|
__ARCH_SI_UID_T _uid; /* sender's uid */
|
|
} _kill;
|
|
|
|
/* POSIX.1b timers */
|
|
struct {
|
|
timer_t _tid; /* timer id */
|
|
int _overrun; /* overrun count */
|
|
char _pad[sizeof( __ARCH_SI_UID_T) - sizeof(int)];
|
|
sigval_t _sigval; /* same as below */
|
|
int _sys_private; /* not to be passed to user */
|
|
} _timer;
|
|
|
|
/* POSIX.1b signals */
|
|
struct {
|
|
pid_t _pid; /* sender's pid */
|
|
__ARCH_SI_UID_T _uid; /* sender's uid */
|
|
sigval_t _sigval;
|
|
} _rt;
|
|
|
|
/* SIGCHLD */
|
|
struct {
|
|
pid_t _pid; /* which child */
|
|
__ARCH_SI_UID_T _uid; /* sender's uid */
|
|
int _status; /* exit code */
|
|
clock_t _utime;
|
|
clock_t _stime;
|
|
} _sigchld;
|
|
|
|
/* IRIX SIGCHLD */
|
|
struct {
|
|
pid_t _pid; /* which child */
|
|
clock_t _utime;
|
|
int _status; /* exit code */
|
|
clock_t _stime;
|
|
} _irix_sigchld;
|
|
|
|
/* SIGILL, SIGFPE, SIGSEGV, SIGBUS */
|
|
struct {
|
|
void __user *_addr; /* faulting insn/memory ref. */
|
|
#ifdef __ARCH_SI_TRAPNO
|
|
int _trapno; /* TRAP # which caused the signal */
|
|
#endif
|
|
short _addr_lsb;
|
|
struct {
|
|
void __user *_lower;
|
|
void __user *_upper;
|
|
} _addr_bnd;
|
|
} _sigfault;
|
|
|
|
/* SIGPOLL, SIGXFSZ (To do ...) */
|
|
struct {
|
|
__ARCH_SI_BAND_T _band; /* POLL_IN, POLL_OUT, POLL_MSG */
|
|
int _fd;
|
|
} _sigpoll;
|
|
|
|
/* SIGSYS */
|
|
struct {
|
|
void __user *_call_addr; /* calling user insn */
|
|
int _syscall; /* triggering system call number */
|
|
unsigned int _arch; /* AUDIT_ARCH_* of syscall */
|
|
} _sigsys;
|
|
} _sifields;
|
|
} siginfo_t;
|
|
|
|
/*
|
|
* si_code values
|
|
* Again these have been chosen to be IRIX compatible.
|
|
*/
|
|
#undef SI_ASYNCIO
|
|
#undef SI_TIMER
|
|
#undef SI_MESGQ
|
|
#define SI_ASYNCIO -2 /* sent by AIO completion */
|
|
#define SI_TIMER __SI_CODE(__SI_TIMER, -3) /* sent by timer expiration */
|
|
#define SI_MESGQ __SI_CODE(__SI_MESGQ, -4) /* sent by real time mesq state change */
|
|
|
|
#include <asm-generic/siginfo.h>
|
|
|
|
#endif /* _UAPI_ASM_SIGINFO_H */
|