add ddb "sh mbuf" command.
This commit is contained in:
yamt
parent
25196f3ee3
commit
e8a3b3eb83
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@ -1,4 +1,4 @@
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/* $NetBSD: db_command.c,v 1.82 2005/12/01 13:21:05 yamt Exp $ */
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/* $NetBSD: db_command.c,v 1.83 2006/01/24 13:02:57 yamt Exp $ */
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/*
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* Mach Operating System
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@ -31,7 +31,7 @@
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*/
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#include <sys/cdefs.h>
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__KERNEL_RCSID(0, "$NetBSD: db_command.c,v 1.82 2005/12/01 13:21:05 yamt Exp $");
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__KERNEL_RCSID(0, "$NetBSD: db_command.c,v 1.83 2006/01/24 13:02:57 yamt Exp $");
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#include "opt_ddb.h"
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#include "opt_kgdb.h"
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@ -43,6 +43,7 @@ __KERNEL_RCSID(0, "$NetBSD: db_command.c,v 1.82 2005/12/01 13:21:05 yamt Exp $")
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#include <sys/reboot.h>
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#include <sys/device.h>
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#include <sys/malloc.h>
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#include <sys/mbuf.h>
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#include <sys/namei.h>
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#include <sys/pool.h>
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#include <sys/proc.h>
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@ -120,6 +121,7 @@ static void db_sync_cmd(db_expr_t, int, db_expr_t, const char *);
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static void db_uvmexp_print_cmd(db_expr_t, int, db_expr_t, const char *);
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static void db_vnode_print_cmd(db_expr_t, int, db_expr_t, const char *);
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static void db_mount_print_cmd(db_expr_t, int, db_expr_t, const char *);
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static void db_mbuf_print_cmd(db_expr_t, int, db_expr_t, const char *);
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/*
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* 'show' commands
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@ -143,6 +145,7 @@ static const struct db_command db_show_cmds[] = {
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{ "malloc", db_malloc_print_cmd, 0, NULL },
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{ "map", db_map_print_cmd, 0, NULL },
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{ "mount", db_mount_print_cmd, 0, NULL },
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{ "mbuf", db_mbuf_print_cmd, 0, NULL },
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{ "ncache", db_namecache_print_cmd, 0, NULL },
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{ "object", db_object_print_cmd, 0, NULL },
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{ "page", db_page_print_cmd, 0, NULL },
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@ -620,6 +623,15 @@ db_mount_print_cmd(db_expr_t addr, int have_addr, db_expr_t count, const char *m
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vfs_mount_print((struct mount *)(intptr_t) addr, full, db_printf);
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}
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/*ARGSUSED*/
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static void
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db_mbuf_print_cmd(db_expr_t addr, int have_addr, db_expr_t count,
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const char *modif)
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{
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m_print((const struct mbuf *)(intptr_t) addr, modif, db_printf);
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}
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/*ARGSUSED*/
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static void
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db_pool_print_cmd(db_expr_t addr, int have_addr, db_expr_t count, const char *modif)
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@ -1,4 +1,4 @@
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/* $NetBSD: uipc_mbuf.c,v 1.104 2005/12/26 18:45:27 perry Exp $ */
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/* $NetBSD: uipc_mbuf.c,v 1.105 2006/01/24 13:02:58 yamt Exp $ */
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/*-
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* Copyright (c) 1999, 2001 The NetBSD Foundation, Inc.
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@ -69,9 +69,10 @@
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*/
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#include <sys/cdefs.h>
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__KERNEL_RCSID(0, "$NetBSD: uipc_mbuf.c,v 1.104 2005/12/26 18:45:27 perry Exp $");
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__KERNEL_RCSID(0, "$NetBSD: uipc_mbuf.c,v 1.105 2006/01/24 13:02:58 yamt Exp $");
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#include "opt_mbuftrace.h"
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#include "opt_ddb.h"
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#include <sys/param.h>
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#include <sys/systm.h>
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@ -1377,3 +1378,63 @@ m_getptr(struct mbuf *m, int loc, int *off)
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return (NULL);
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}
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#if defined(DDB)
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void
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m_print(const struct mbuf *m, const char *modif, void (*pr)(const char *, ...))
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{
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char ch;
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boolean_t opt_c = FALSE;
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char buf[512];
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while ((ch = *(modif++)) != '\0') {
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switch (ch) {
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case 'c':
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opt_c = TRUE;
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break;
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}
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}
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nextchain:
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(*pr)("MBUF %p\n", m);
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bitmask_snprintf(m->m_flags, M_FLAGS_BITS, buf, sizeof(buf));
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(*pr)(" data=%p, len=%d, type=%d, flags=0x%s\n",
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m->m_data, m->m_len, m->m_type, buf);
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(*pr)(" owner=%p, next=%p, nextpkt=%p\n", m->m_owner, m->m_next,
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m->m_nextpkt);
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(*pr)(" leadingspace=%u, trailingspace=%u, readonly=%u\n",
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(int)M_LEADINGSPACE(m), (int)M_TRAILINGSPACE(m),
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(int)M_READONLY(m));
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if ((m->m_flags & M_PKTHDR) != 0) {
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bitmask_snprintf(m->m_pkthdr.csum_flags, M_CSUM_BITS, buf,
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sizeof(buf));
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(*pr)(" pktlen=%d, rcvif=%p, csum_flags=0x%s, csum_data=0x%"
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PRIx32 ", segsz=%u\n",
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m->m_pkthdr.len, m->m_pkthdr.rcvif,
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buf, m->m_pkthdr.csum_data, m->m_pkthdr.segsz);
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}
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if ((m->m_flags & M_EXT)) {
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(*pr)(" shared=%u, ext_buf=%p, ext_size=%zd, "
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"ext_free=%p, ext_arg=%p\n",
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(int)MCLISREFERENCED(m),
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m->m_ext.ext_buf, m->m_ext.ext_size,
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m->m_ext.ext_free, m->m_ext.ext_arg);
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}
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if ((~m->m_flags & (M_EXT|M_EXT_PAGES)) == 0) {
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int i;
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(*pr)(" pages:");
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for (i = 0; i < m->m_ext.ext_size; i += PAGE_SIZE) {
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(*pr)(" %p", m->m_ext.ext_pgs[i]);
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}
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(*pr)("\n");
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}
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if (opt_c) {
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m = m->m_next;
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if (m != NULL) {
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goto nextchain;
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}
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}
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}
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#endif /* defined(DDB) */
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@ -1,4 +1,4 @@
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/* $NetBSD: mbuf.h,v 1.119 2006/01/21 00:15:35 rpaulo Exp $ */
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/* $NetBSD: mbuf.h,v 1.120 2006/01/24 13:02:57 yamt Exp $ */
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/*-
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* Copyright (c) 1996, 1997, 1999, 2001 The NetBSD Foundation, Inc.
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@ -181,6 +181,10 @@ struct pkthdr {
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* is not yet 1s-complemented.
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*/
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#define M_CSUM_BITS \
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"\20\1TCPv4\2UDPv4\3TCP_UDP_BAD\4DATA\5TCPv6\6UDPv6\7IPv4\10IPv4_BAD" \
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"\11TSOv4\38NO_PSEUDOHDR"
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/*
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* Macros for manipulating csum_data on outgoing packets. These are
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* used to pass information down from the L4/L3 to the L2.
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@ -323,6 +327,11 @@ MBUF_DEFINE(mbuf, MHLEN, MLEN);
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/* for source-level compatibility */
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#define M_CLUSTER M_EXT_CLUSTER
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#define M_FLAGS_BITS \
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"\20\1EXT\2PKTHDR\3EOR\4PROTO1\5AUTHIPHDR\6DECRYPTED\7LOOP\10AUTHIPDGM" \
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"\11BCAST\12MCASE\13CANFASTFWD\14ANYCAST6\15LINK0\16LINK1\17LINK2\20LINK3" \
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"\30EXT_CLUSTER\31EXT_PAGES\32EXT_ROMAP\33EXT_RW"
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/* flags copied when copying m_pkthdr */
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#define M_COPYFLAGS (M_PKTHDR|M_EOR|M_BCAST|M_MCAST|M_CANFASTFWD|M_ANYCAST6|M_LINK0|M_LINK1|M_LINK2|M_AUTHIPHDR|M_DECRYPTED|M_LOOP|M_AUTHIPDGM)
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@ -949,6 +958,7 @@ m_ext_free(struct mbuf *m, boolean_t dofree)
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pool_cache_put(&mbpool_cache, m);
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}
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void m_print(const struct mbuf *, const char *, void (*)(const char *, ...));
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#endif /* _KERNEL */
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#endif /* !_SYS_MBUF_H_ */
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