IABSD.fr/src/sys/ddb/db_interface.h

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• Author : bluhm
  Date : 2024-09-05 08:52:27
  Hash : 64a93525
  Message : In ddb(4) print mbuf chain and packet list. For debugging hardware offloading, DMA requirements, bounce buffers, and performance optimizations, knowing the memory layout of mbuf content helps. Implement /c and /p modifiers in ddb show mbuf. It traverses the pointer m_next for mbuf chain or m_nextpkt for packet list. Show mbuf type, data offset, mbuf length, packet length, cluster size, and total number of elements, length and size. OK claudio@ mvs@

• sys/ddb/db_interface.h

• /*	$OpenBSD: db_interface.h,v 1.28 2024/09/05 08:52:27 bluhm Exp $	*/
  /*	$NetBSD: db_interface.h,v 1.1 1996/02/05 01:57:03 christos Exp $	*/
  
  /*
   * Copyright (c) 1995 Christos Zoulas.  All rights reserved.
   *
   * Redistribution and use in source and binary forms, with or without
   * modification, are permitted provided that the following conditions
   * are met:
   * 1. Redistributions of source code must retain the above copyright
   *    notice, this list of conditions and the following disclaimer.
   * 2. Redistributions in binary form must reproduce the above copyright
   *    notice, this list of conditions and the following disclaimer in the
   *    documentation and/or other materials provided with the distribution.
   * 3. All advertising materials mentioning features or use of this software
   *    must display the following acknowledgement:
   *	This product includes software developed by Christos Zoulas.
   * 4. The name of the author may not be used to endorse or promote products
   *    derived from this software without specific prior written permission.
   *
   * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
   * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
   * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
   * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
   * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
   * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
   * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
   * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
   * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
   * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
   */
  #ifndef _DDB_DB_INTERFACE_H_
  #define _DDB_DB_INTERFACE_H_
  
  /* arch/<arch>/<arch>/db_trace.c */
  void db_stack_trace_print(db_expr_t, int, db_expr_t, char *,
      int (*)(const char *, ...));
  
  /* arch/<arch>/<arch>/db_disasm.c */
  vaddr_t db_disasm(vaddr_t, int);
  
  /* kern/kern_proc.c */
  void db_kill_cmd(db_expr_t, int, db_expr_t, char *);
  void db_show_all_procs(db_expr_t, int, db_expr_t, char *);
  
  /* kern/kern_clockintr.c */
  void db_show_all_clockintr(db_expr_t, int, db_expr_t, char *);
  
  /* kern/kern_timeout.c */
  void db_show_callout(db_expr_t, int, db_expr_t, char *);
  
  struct mount;
  
  /* kern/vfs_subr.c */
  void vfs_buf_print(void *, int, int (*)(const char *, ...));
  void vfs_vnode_print(void *, int, int (*)(const char *, ...));
  void vfs_mount_print(struct mount *, int, int (*)(const char *, ...));
  
  /* kern/subr_pool.c */
  void db_show_all_pools(db_expr_t, int, db_expr_t, char *);
  
  /* kern/uipc_mbuf.c */
  void m_print(void *, int (*)(const char *, ...));
  void m_print_chain(void *, int, int (*)(const char *, ...));
  void m_print_packet(void *, int, int (*)(const char *, ...));
  
  /* kern/uipc_socket.c */
  void so_print(void *, int (*)(const char *, ...));
  
  struct rtentry;
  int db_show_rtentry(struct rtentry *, void *, unsigned int);
  int db_show_rtable(int, unsigned int);
  
  /* nfs/nfs_debug.c */
  void db_show_all_nfsreqs(db_expr_t, int, db_expr_t, char *);
  void nfs_request_print(void *, int, int (*)(const char *, ...));
  void db_show_all_nfsnodes(db_expr_t, int, db_expr_t, char *);
  void nfs_node_print(void *, int, int (*)(const char *, ...));
  
  /* uvm/uvm_swap.c */
  void swap_print_all(int (*)(const char *, ...));
  
  /* arch/<arch>/<arch>/db_interface.c */
  void db_machine_init(void);
  
  #endif /* _DDB_DB_INTERFACE_H_ */