9289f547a2
Restructure this script so that it generates a header of tables instead of a source file. The tables are included in a flags.c source file which provides functions to decode various system call arguments. For functions that decode an enumeration, the function returns a pointer to a string for known values and NULL for unknown values. For functions that do more complex decoding (typically of a bitmask), the function accepts a pointer to a FILE object (open_memstream() can be used as a string builder) to which decoded values are written. If the function operates on a bitmask, the function returns true if any bits were decoded or false if the entire value was valid. Additionally, the third argument accepts a pointer to a value to which any undecoded bits are stored. This pointer can be NULL if the caller doesn't care about remaining bits. Convert kdump over to using decoder functions from libsysdecode instead of mksubr. truss also uses decoders from libsysdecode instead of private lookup tables, though lookup tables for objects not decoded by kdump remain in truss for now. Eventually most of these tables should move into libsysdecode as the automated table generation approach from mksubr is less stale than the static tables in truss. Some changes have been made to truss and kdump output: - The flags passed to open() are now properly decoded in that one of O_RDONLY, O_RDWR, O_WRONLY, or O_EXEC is always included in a decoded mask. - Optional arguments to open(), openat(), and fcntl() are only printed in kdump if they exist (e.g. the mode is only printed for open() if O_CREAT is set in the flags). - Print argument to F_GETLK/SETLK/SETLKW in kdump as a pointer, not int. - Include all procctl() commands. - Correctly decode pipe2() flags in truss by not assuming full open()-like flags with O_RDONLY, etc. - Decode file flags passed to *chflags() as file flags (UF_* and SF_*) rather than as a file mode. - Fix decoding of quotactl() commands by splitting out the two command components instead of assuming the raw command value matches the primary command component. In addition, truss and kdump now build without triggering any warnings. All of the sysdecode manpages now include the required headers in the synopsis. Reviewed by: kib (several older versions), wblock (manpages) MFC after: 2 months Differential Revision: https://reviews.freebsd.org/D7847
118 lines
5.7 KiB
C
118 lines
5.7 KiB
C
/*-
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* Copyright (c) 2015 John H. Baldwin <jhb@FreeBSD.org>
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* All rights reserved.
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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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#ifndef __SYSDECODE_H__
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#define __SYSDECODE_H__
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enum sysdecode_abi {
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SYSDECODE_ABI_UNKNOWN = 0,
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SYSDECODE_ABI_FREEBSD,
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SYSDECODE_ABI_FREEBSD32,
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SYSDECODE_ABI_LINUX,
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SYSDECODE_ABI_LINUX32,
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SYSDECODE_ABI_CLOUDABI64
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};
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int sysdecode_abi_to_freebsd_errno(enum sysdecode_abi _abi, int _error);
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bool sysdecode_access_mode(FILE *_fp, int _mode, int *_rem);
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const char *sysdecode_acltype(int _type);
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const char *sysdecode_atfd(int _fd);
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bool sysdecode_cap_fcntlrights(FILE *_fp, uint32_t _rights, uint32_t *_rem);
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void sysdecode_cap_rights(FILE *_fp, cap_rights_t *_rightsp);
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const char *sysdecode_extattrnamespace(int _namespace);
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const char *sysdecode_fadvice(int _advice);
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void sysdecode_fcntl_arg(FILE *_fp, int _cmd, uintptr_t _arg, int _base);
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bool sysdecode_fcntl_arg_p(int _cmd);
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const char *sysdecode_fcntl_cmd(int _cmd);
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bool sysdecode_fcntl_fileflags(FILE *_fp, int _flags, int *_rem);
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bool sysdecode_fileflags(FILE *_fp, fflags_t _flags, fflags_t *_rem);
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bool sysdecode_filemode(FILE *_fp, int _mode, int *_rem);
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bool sysdecode_flock_operation(FILE *_fp, int _operation, int *_rem);
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int sysdecode_freebsd_to_abi_errno(enum sysdecode_abi _abi, int _error);
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bool sysdecode_getfsstat_flags(FILE *_fp, int _flags, int *_rem);
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const char *sysdecode_idtype(int _idtype);
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const char *sysdecode_ioctlname(unsigned long _val);
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const char *sysdecode_ipproto(int _protocol);
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const char *sysdecode_kldsym_cmd(int _cmd);
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const char *sysdecode_kldunload_flags(int _flags);
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const char *sysdecode_lio_listio_mode(int _mode);
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const char *sysdecode_madvice(int _advice);
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const char *sysdecode_minherit_inherit(int _inherit);
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const char *sysdecode_msgctl_cmd(int _cmd);
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bool sysdecode_mlockall_flags(FILE *_fp, int _flags, int *_rem);
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bool sysdecode_mmap_flags(FILE *_fp, int _flags, int *_rem);
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bool sysdecode_mmap_prot(FILE *_fp, int _prot, int *_rem);
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bool sysdecode_mount_flags(FILE *_fp, int _flags, int *_rem);
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bool sysdecode_msg_flags(FILE *_fp, int _flags, int *_rem);
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bool sysdecode_msync_flags(FILE *_fp, int _flags, int *_rem);
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const char *sysdecode_nfssvc_flags(int _flags);
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bool sysdecode_open_flags(FILE *_fp, int _flags, int *_rem);
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bool sysdecode_pipe2_flags(FILE *_fp, int _flags, int *_rem);
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const char *sysdecode_prio_which(int _which);
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const char *sysdecode_procctl_cmd(int _cmd);
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const char *sysdecode_ptrace_request(int _request);
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bool sysdecode_quotactl_cmd(FILE *_fp, int _cmd);
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bool sysdecode_reboot_howto(FILE *_fp, int _howto, int *_rem);
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bool sysdecode_rfork_flags(FILE *_fp, int _flags, int *_rem);
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const char *sysdecode_rlimit(int _resource);
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const char *sysdecode_rtprio_function(int _function);
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const char *sysdecode_scheduler_policy(int _policy);
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const char *sysdecode_semctl_cmd(int _cmd);
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bool sysdecode_semget_flags(FILE *_fp, int _flag, int *_rem);
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bool sysdecode_sendfile_flags(FILE *_fp, int _flags, int *_rem);
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bool sysdecode_shmat_flags(FILE *_fp, int _flags, int *_rem);
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const char *sysdecode_shmctl_cmd(int _cmd);
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const char *sysdecode_shutdown_how(int _how);
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const char *sysdecode_sigbus_code(int _si_code);
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const char *sysdecode_sigchld_code(int _si_code);
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const char *sysdecode_sigcode(int _sig, int _si_code);
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const char *sysdecode_sigfpe_code(int _si_code);
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const char *sysdecode_sigill_code(int _si_code);
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const char *sysdecode_signal(int _sig);
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const char *sysdecode_sigprocmask_how(int _how);
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const char *sysdecode_sigsegv_code(int _si_code);
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const char *sysdecode_sigtrap_code(int _si_code);
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const char *sysdecode_sockaddr_family(int _sa_family);
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const char *sysdecode_socketdomain(int _domain);
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bool sysdecode_socket_type(FILE *_fp, int _type, int *_rem);
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const char *sysdecode_sockopt_level(int _level);
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const char *sysdecode_sockopt_name(int _level, int _optname);
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const char *sysdecode_syscallname(enum sysdecode_abi _abi, unsigned int _code);
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bool sysdecode_thr_create_flags(FILE *_fp, int _flags, int *_rem);
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bool sysdecode_umtx_cvwait_flags(FILE *_fp, u_long _flags, u_long *_rem);
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const char *sysdecode_umtx_op(int _op);
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bool sysdecode_umtx_rwlock_flags(FILE *_fp, u_long _flags, u_long *_rem);
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int sysdecode_utrace(FILE *_fp, void *_buf, size_t _len);
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bool sysdecode_vmprot(FILE *_fp, int _type, int *_rem);
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const char *sysdecode_vmresult(int _result);
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bool sysdecode_wait4_options(FILE *_fp, int _options, int *_rem);
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bool sysdecode_wait6_options(FILE *_fp, int _options, int *_rem);
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const char *sysdecode_whence(int _whence);
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#endif /* !__SYSDECODE_H__ */
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