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| author | rwatson <rwatson@FreeBSD.org> | 2008-07-19 12:12:54 +0000 |
|---|---|---|
| committer | rwatson <rwatson@FreeBSD.org> | 2008-07-19 12:12:54 +0000 |
| commit | 8fd5cf995c60144fc477529409ef77e98a0fd4bd (patch) | |
| tree | 72d5f916fafe6212bd0bcd815219914c3b234dea | |
| parent | 7ff6e9903f13d9d6684f9c61e286c4c653181385 (diff) | |
| download | FreeBSD-src-8fd5cf995c60144fc477529409ef77e98a0fd4bd.zip FreeBSD-src-8fd5cf995c60144fc477529409ef77e98a0fd4bd.tar.gz | |
Add DDB "show conifhk" command, which lists hooks currently waiting
for completion in run_interrupt_driven_config_hooks(). This is
helpful when trying to figure out which device drivers have gone
into la-la land during boot-time autoconfiguration.
MFC after: 3 days
| -rw-r--r-- | sys/kern/subr_autoconf.c | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/sys/kern/subr_autoconf.c b/sys/kern/subr_autoconf.c index ef70f04..9bb1619 100644 --- a/sys/kern/subr_autoconf.c +++ b/sys/kern/subr_autoconf.c @@ -37,6 +37,8 @@ #include <sys/cdefs.h> __FBSDID("$FreeBSD$"); +#include "opt_ddb.h" + #include <sys/param.h> #include <sys/kernel.h> #include <sys/lock.h> @@ -130,3 +132,28 @@ config_intrhook_disestablish(hook) wakeup(&intr_config_hook_list); mtx_unlock(&intr_config_hook_lock); } + +#ifdef DDB +#include <ddb/ddb.h> +#include <sys/linker.h> + +DB_SHOW_COMMAND(conifhk, db_show_conifhk) +{ + struct intr_config_hook *hook_entry; + char namebuf[64]; + long offset; + + TAILQ_FOREACH(hook_entry, &intr_config_hook_list, ich_links) { + if (linker_ddb_search_symbol_name( + (caddr_t)hook_entry->ich_func, namebuf, sizeof(namebuf), + &offset) == 0) { + db_printf("hook: %p at %s+%#lx arg: %p\n", + hook_entry->ich_func, namebuf, offset, + hook_entry->ich_arg); + } else { + db_printf("hook: %p at ??+?? arg %p\n", + hook_entry->ich_func, hook_entry->ich_arg); + } + } +} +#endif /* DDB */ |
