Date: Wed, 13 Apr 2011 19:10:56 +0000 (UTC) From: Gavin Atkinson <gavin@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r220606 - head/sys/kern Message-ID: <201104131910.p3DJAuIk008734@svn.freebsd.org>
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Author: gavin Date: Wed Apr 13 19:10:56 2011 New Revision: 220606 URL: http://svn.freebsd.org/changeset/base/220606 Log: Add a new DDB command, "show rmans", which will show the address and brief details of each rman header, but not the contents of all rman structures in the system. This is especially useful on platforms where some rmans have many thousands of entries in rmans, making scrolling through the output of "show all rman" impractical. Individual rmans can then be viewed including their contents with "show rman 0xaddr" as usual. Reviewed by: jhb Modified: head/sys/kern/subr_rman.c Modified: head/sys/kern/subr_rman.c ============================================================================== --- head/sys/kern/subr_rman.c Wed Apr 13 18:19:41 2011 (r220605) +++ head/sys/kern/subr_rman.c Wed Apr 13 19:10:56 2011 (r220606) @@ -927,6 +927,16 @@ SYSCTL_NODE(_hw_bus, OID_AUTO, rman, CTL #ifdef DDB static void +dump_rman_header(struct rman *rm) +{ + + if (db_pager_quit) + return; + db_printf("rman %p: %s (0x%lx-0x%lx full range)\n", + rm, rm->rm_descr, rm->rm_start, rm->rm_end); +} + +static void dump_rman(struct rman *rm) { struct resource_i *r; @@ -934,8 +944,6 @@ dump_rman(struct rman *rm) if (db_pager_quit) return; - db_printf("rman: %s\n", rm->rm_descr); - db_printf(" 0x%lx-0x%lx (full range)\n", rm->rm_start, rm->rm_end); TAILQ_FOREACH(r, &rm->rm_list, r_link) { if (r->r_dev != NULL) { devname = device_get_nameunit(r->r_dev); @@ -956,16 +964,29 @@ dump_rman(struct rman *rm) DB_SHOW_COMMAND(rman, db_show_rman) { - if (have_addr) + if (have_addr) { + dump_rman_header((struct rman *)addr); dump_rman((struct rman *)addr); + } +} + +DB_SHOW_COMMAND(rmans, db_show_rmans) +{ + struct rman *rm; + + TAILQ_FOREACH(rm, &rman_head, rm_link) { + dump_rman_header(rm); + } } DB_SHOW_ALL_COMMAND(rman, db_show_all_rman) { struct rman *rm; - TAILQ_FOREACH(rm, &rman_head, rm_link) + TAILQ_FOREACH(rm, &rman_head, rm_link) { + dump_rman_header(rm); dump_rman(rm); + } } DB_SHOW_ALIAS(allrman, db_show_all_rman); #endif
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