6040822c4e
The timespecadd(3) family of macros were imported from NetBSD back in r35029. However, they were initially guarded by #ifdef _KERNEL. In the meantime, we have grown at least 28 syscalls that use timespecs in some way, leading many programs both inside and outside of the base system to redefine those macros. It's better just to make the definitions public. Our kernel currently defines two-argument versions of timespecadd and timespecsub. NetBSD, OpenBSD, and FreeDesktop.org's libbsd, however, define three-argument versions. Solaris also defines a three-argument version, but only in its kernel. This revision changes our definition to match the common three-argument version. Bump _FreeBSD_version due to the breaking KPI change. Discussed with: cem, jilles, ian, bde Differential Revision: https://reviews.freebsd.org/D14725
122 lines
3.6 KiB
C
122 lines
3.6 KiB
C
/*-
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* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
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*
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* Copyright 2001 Jamey Wood
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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#include <sys/linker_set.h>
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#include <sys/queue.h>
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#define FOLLOWFORKS 0x00000001
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#define RELATIVETIMESTAMPS 0x00000002
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#define ABSOLUTETIMESTAMPS 0x00000004
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#define NOSIGS 0x00000008
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#define EXECVEARGS 0x00000010
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#define EXECVEENVS 0x00000020
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#define COUNTONLY 0x00000040
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#define DISPLAYTIDS 0x00000080
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struct procinfo;
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struct syscall;
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struct trussinfo;
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/*
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* The lookup of normal system calls are optimized by using a fixed
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* array for the first 1024 system calls that can be indexed directly.
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* Unknown system calls with other IDs are stored in a linked list.
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*/
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#define SYSCALL_NORMAL_COUNT 1024
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struct extra_syscall {
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STAILQ_ENTRY(extra_syscall) entries;
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struct syscall *sc;
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u_int number;
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};
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struct procabi {
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const char *type;
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enum sysdecode_abi abi;
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int (*fetch_args)(struct trussinfo *, u_int);
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int (*fetch_retval)(struct trussinfo *, long *, int *);
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STAILQ_HEAD(, extra_syscall) extra_syscalls;
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struct syscall *syscalls[SYSCALL_NORMAL_COUNT];
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};
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#define PROCABI(abi) DATA_SET(procabi, abi)
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/*
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* This is confusingly named. It holds per-thread state about the
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* currently executing system call. syscall.h defines a struct
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* syscall that holds metadata used to format system call arguments.
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*
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* NB: args[] stores the raw argument values (e.g. from registers)
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* passed to the system call. s_args[] stores a string representation
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* of a system call's arguments. These do not necessarily map one to
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* one. A system call description may omit individual arguments
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* (padding) or combine adjacent arguments (e.g. when passing an off_t
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* argument on a 32-bit system). The nargs member contains the count
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* of valid pointers in s_args[], not args[].
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*/
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struct current_syscall {
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struct syscall *sc;
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unsigned int number;
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unsigned int nargs;
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unsigned long args[10];
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char *s_args[10]; /* the printable arguments */
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};
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struct threadinfo
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{
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LIST_ENTRY(threadinfo) entries;
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struct procinfo *proc;
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lwpid_t tid;
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int in_syscall;
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struct current_syscall cs;
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struct timespec before;
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struct timespec after;
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};
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struct procinfo {
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LIST_ENTRY(procinfo) entries;
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pid_t pid;
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struct procabi *abi;
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LIST_HEAD(, threadinfo) threadlist;
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};
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struct trussinfo
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{
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int flags;
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int strsize;
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FILE *outfile;
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struct timespec start_time;
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struct threadinfo *curthread;
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LIST_HEAD(, procinfo) proclist;
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};
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