X-Git-Url: https://git.whamcloud.com/?p=fs%2Flustre-release.git;a=blobdiff_plain;f=libcfs%2Finclude%2Flibcfs%2Flibcfs_debug.h;h=662d2908a2855a361b99862385972c5787b05585;hp=a87894b80c2e5891e2224bf2f3291a2175796b2c;hb=3769245cad0775816b653253e497e57b7500033c;hpb=2f41b688058532248e69ff0194c27616f4dfb6d5 diff --git a/libcfs/include/libcfs/libcfs_debug.h b/libcfs/include/libcfs/libcfs_debug.h index a87894b..662d290 100644 --- a/libcfs/include/libcfs/libcfs_debug.h +++ b/libcfs/include/libcfs/libcfs_debug.h @@ -15,11 +15,7 @@ * * You should have received a copy of the GNU General Public License * version 2 along with this program; If not, see - * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf - * - * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, - * CA 95054 USA or visit www.sun.com if you need additional information or - * have any questions. + * http://www.gnu.org/licenses/gpl-2.0.html * * GPL HEADER END */ @@ -27,11 +23,10 @@ * Copyright (c) 2008, 2010, Oracle and/or its affiliates. All rights reserved. * Use is subject to license terms. * - * Copyright (c) 2012, 2013, Intel Corporation. + * Copyright (c) 2012, 2017, Intel Corporation. */ /* * This file is part of Lustre, http://www.lustre.org/ - * Lustre is a trademark of Sun Microsystems, Inc. * * libcfs/include/libcfs/libcfs_debug.h * @@ -42,6 +37,9 @@ #ifndef __LIBCFS_DEBUG_H__ #define __LIBCFS_DEBUG_H__ +#include +#include + /* * Debugging */ @@ -49,115 +47,24 @@ extern unsigned int libcfs_subsystem_debug; extern unsigned int libcfs_stack; extern unsigned int libcfs_debug; extern unsigned int libcfs_printk; -extern unsigned int libcfs_console_ratelimit; extern unsigned int libcfs_watchdog_ratelimit; +extern unsigned int libcfs_console_ratelimit; extern unsigned int libcfs_console_max_delay; extern unsigned int libcfs_console_min_delay; extern unsigned int libcfs_console_backoff; extern unsigned int libcfs_debug_binary; -extern char libcfs_debug_file_path_arr[PATH_MAX]; +extern char *libcfs_debug_file_path; + +struct task_struct; int libcfs_debug_mask2str(char *str, int size, int mask, int is_subsys); int libcfs_debug_str2mask(int *mask, const char *str, int is_subsys); +void libcfs_debug_dumpstack(struct task_struct *tsk); /* Has there been an LBUG? */ extern unsigned int libcfs_catastrophe; extern unsigned int libcfs_panic_on_lbug; -/** - * Format for debug message headers - */ -struct ptldebug_header { - __u32 ph_len; - __u32 ph_flags; - __u32 ph_subsys; - __u32 ph_mask; - __u16 ph_cpu_id; - __u16 ph_type; - __u32 ph_sec; - __u64 ph_usec; - __u32 ph_stack; - __u32 ph_pid; - __u32 ph_extern_pid; - __u32 ph_line_num; -} __attribute__((packed)); - - -#define PH_FLAG_FIRST_RECORD 1 - -/* Debugging subsystems (32 bits, non-overlapping) */ -/* keep these in sync with lnet/utils/debug.c and lnet/libcfs/debug.c */ -#define S_UNDEFINED 0x00000001 -#define S_MDC 0x00000002 -#define S_MDS 0x00000004 -#define S_OSC 0x00000008 -#define S_OST 0x00000010 -#define S_CLASS 0x00000020 -#define S_LOG 0x00000040 -#define S_LLITE 0x00000080 -#define S_RPC 0x00000100 -#define S_MGMT 0x00000200 -#define S_LNET 0x00000400 -#define S_LND 0x00000800 /* ALL LNDs */ -#define S_PINGER 0x00001000 -#define S_FILTER 0x00002000 -/* unused */ -#define S_ECHO 0x00008000 -#define S_LDLM 0x00010000 -#define S_LOV 0x00020000 -#define S_LQUOTA 0x00040000 -#define S_OSD 0x00080000 -#define S_LFSCK 0x00100000 -/* unused */ -/* unused */ -#define S_LMV 0x00800000 /* b_new_cmd */ -/* unused */ -#define S_SEC 0x02000000 /* upcall cache */ -#define S_GSS 0x04000000 /* b_new_cmd */ -/* unused */ -#define S_MGC 0x10000000 -#define S_MGS 0x20000000 -#define S_FID 0x40000000 /* b_new_cmd */ -#define S_FLD 0x80000000 /* b_new_cmd */ -/* keep these in sync with lnet/utils/debug.c and lnet/libcfs/debug.c */ - -/* Debugging masks (32 bits, non-overlapping) */ -/* keep these in sync with lnet/utils/debug.c and lnet/libcfs/debug.c */ -#define D_TRACE 0x00000001 /* ENTRY/EXIT markers */ -#define D_INODE 0x00000002 -#define D_SUPER 0x00000004 -#define D_EXT2 0x00000008 /* anything from ext2_debug */ -#define D_MALLOC 0x00000010 /* print malloc, free information */ -#define D_CACHE 0x00000020 /* cache-related items */ -#define D_INFO 0x00000040 /* general information */ -#define D_IOCTL 0x00000080 /* ioctl related information */ -#define D_NETERROR 0x00000100 /* network errors */ -#define D_NET 0x00000200 /* network communications */ -#define D_WARNING 0x00000400 /* CWARN(...) == CDEBUG (D_WARNING, ...) */ -#define D_BUFFS 0x00000800 -#define D_OTHER 0x00001000 -#define D_DENTRY 0x00002000 -#define D_NETTRACE 0x00004000 -#define D_PAGE 0x00008000 /* bulk page handling */ -#define D_DLMTRACE 0x00010000 -#define D_ERROR 0x00020000 /* CERROR(...) == CDEBUG (D_ERROR, ...) */ -#define D_EMERG 0x00040000 /* CEMERG(...) == CDEBUG (D_EMERG, ...) */ -#define D_HA 0x00080000 /* recovery and failover */ -#define D_RPCTRACE 0x00100000 /* for distributed debugging */ -#define D_VFSTRACE 0x00200000 -#define D_READA 0x00400000 /* read-ahead */ -#define D_MMAP 0x00800000 -#define D_CONFIG 0x01000000 -#define D_CONSOLE 0x02000000 -#define D_QUOTA 0x04000000 -#define D_SEC 0x08000000 -#define D_LFSCK 0x10000000 /* For both OI scrub and LFSCK */ -/* keep these in sync with lnet/{utils,libcfs}/debug.c */ - -#define D_HSM D_TRACE - -#define D_CANTMASK (D_ERROR | D_EMERG | D_WARNING | D_CONSOLE) - #ifndef DEBUG_SUBSYSTEM # define DEBUG_SUBSYSTEM S_UNDEFINED #endif @@ -165,100 +72,130 @@ struct ptldebug_header { #define CDEBUG_DEFAULT_MAX_DELAY (cfs_time_seconds(600)) /* jiffies */ #define CDEBUG_DEFAULT_MIN_DELAY ((cfs_time_seconds(1) + 1) / 2) /* jiffies */ #define CDEBUG_DEFAULT_BACKOFF 2 -typedef struct { - cfs_time_t cdls_next; - unsigned int cdls_delay; - int cdls_count; -} cfs_debug_limit_state_t; +struct cfs_debug_limit_state { + unsigned long cdls_next; + unsigned int cdls_delay; + int cdls_count; +}; struct libcfs_debug_msg_data { - const char *msg_file; - const char *msg_fn; - int msg_subsys; - int msg_line; - int msg_mask; - cfs_debug_limit_state_t *msg_cdls; + const char *msg_file; + const char *msg_fn; + int msg_subsys; + int msg_line; + int msg_mask; + struct cfs_debug_limit_state *msg_cdls; }; -#define LIBCFS_DEBUG_MSG_DATA_INIT(data, mask, cdls) \ -do { \ - (data)->msg_subsys = DEBUG_SUBSYSTEM; \ - (data)->msg_file = __FILE__; \ - (data)->msg_fn = __FUNCTION__; \ - (data)->msg_line = __LINE__; \ - (data)->msg_cdls = (cdls); \ - (data)->msg_mask = (mask); \ +#define LIBCFS_DEBUG_MSG_DATA_INIT(file, func, line, msgdata, mask, cdls)\ +do { \ + (msgdata)->msg_subsys = DEBUG_SUBSYSTEM; \ + (msgdata)->msg_file = (file); \ + (msgdata)->msg_fn = (func); \ + (msgdata)->msg_line = (line); \ + (msgdata)->msg_mask = (mask); \ + (msgdata)->msg_cdls = (cdls); \ } while (0) -#define LIBCFS_DEBUG_MSG_DATA_DECL(dataname, mask, cdls) \ - static struct libcfs_debug_msg_data dataname = { \ - .msg_subsys = DEBUG_SUBSYSTEM, \ - .msg_file = __FILE__, \ - .msg_fn = __FUNCTION__, \ - .msg_line = __LINE__, \ - .msg_cdls = (cdls) }; \ - dataname.msg_mask = (mask); +#define LIBCFS_DEBUG_MSG_DATA_DECL_LOC(file, func, line, msgdata, mask, cdls)\ + static struct libcfs_debug_msg_data msgdata = { \ + .msg_subsys = DEBUG_SUBSYSTEM, \ + .msg_file = (file), \ + .msg_fn = (func), \ + .msg_line = (line), \ + .msg_cdls = (cdls) }; \ + msgdata.msg_mask = (mask) -#if defined(__KERNEL__) || (defined(__arch_lib__) && !defined(LUSTRE_UTILS)) +#define LIBCFS_DEBUG_MSG_DATA_DECL(msgdata, mask, cdls) \ + LIBCFS_DEBUG_MSG_DATA_DECL_LOC(__FILE__, __func__, __LINE__, \ + msgdata, mask, cdls) #ifdef CDEBUG_ENABLED +#if !defined(__x86_64__) +# ifdef __ia64__ +# define CDEBUG_STACK() (THREAD_SIZE - \ + ((unsigned long)__builtin_dwarf_cfa() & \ + (THREAD_SIZE - 1))) +# else +# define CDEBUG_STACK() (THREAD_SIZE - \ + ((unsigned long)__builtin_frame_address(0) & \ + (THREAD_SIZE - 1))) +# endif /* __ia64__ */ + +#define __CHECK_STACK_WITH_LOC(file, func, line, msgdata, mask, cdls) \ +do { \ + if (unlikely(CDEBUG_STACK() > libcfs_stack)) { \ + LIBCFS_DEBUG_MSG_DATA_INIT(file, func, line, msgdata, \ + D_WARNING, NULL); \ + libcfs_stack = CDEBUG_STACK(); \ + libcfs_debug_msg(msgdata, "maximum lustre stack %u\n", \ + libcfs_stack); \ + (msgdata)->msg_mask = mask; \ + (msgdata)->msg_cdls = cdls; \ + dump_stack(); \ + /*panic("LBUG");*/ \ + } \ +} while (0) +#else /* __x86_64__ */ +#define CDEBUG_STACK() (0L) +#define __CHECK_STACK_WITH_LOC(file, func, line, msgdata, mask, cdls) \ + do {} while (0) +#endif /* __x86_64__ */ + +#define CFS_CHECK_STACK(msgdata, mask, cdls) \ + __CHECK_STACK_WITH_LOC(__FILE__, __func__, __LINE__, \ + msgdata, mask, cdls) /** * Filters out logging messages based on mask and subsystem. */ static inline int cfs_cdebug_show(unsigned int mask, unsigned int subsystem) { - return mask & D_CANTMASK || - ((libcfs_debug & mask) && (libcfs_subsystem_debug & subsystem)); + return mask & D_CANTMASK || + ((libcfs_debug & mask) && (libcfs_subsystem_debug & subsystem)); } -#define __CDEBUG(cdls, mask, format, ...) \ -do { \ - static struct libcfs_debug_msg_data msgdata; \ - \ - CFS_CHECK_STACK(&msgdata, mask, cdls); \ - \ - if (cfs_cdebug_show(mask, DEBUG_SUBSYSTEM)) { \ - LIBCFS_DEBUG_MSG_DATA_INIT(&msgdata, mask, cdls); \ - libcfs_debug_msg(&msgdata, format, ## __VA_ARGS__); \ - } \ +# define __CDEBUG_WITH_LOC(file, func, line, mask, cdls, format, ...) \ +do { \ + static struct libcfs_debug_msg_data msgdata; \ + \ + __CHECK_STACK_WITH_LOC(file, func, line, &msgdata, mask, cdls); \ + \ + if (cfs_cdebug_show(mask, DEBUG_SUBSYSTEM)) { \ + LIBCFS_DEBUG_MSG_DATA_INIT(file, func, line, \ + &msgdata, mask, cdls); \ + libcfs_debug_msg(&msgdata, format, ## __VA_ARGS__); \ + } \ } while (0) -#define CDEBUG(mask, format, ...) __CDEBUG(NULL, mask, format, ## __VA_ARGS__) +# define CDEBUG(mask, format, ...) \ + __CDEBUG_WITH_LOC(__FILE__, __func__, __LINE__, \ + mask, NULL, format, ## __VA_ARGS__) -#define CDEBUG_LIMIT(mask, format, ...) \ -do { \ - static cfs_debug_limit_state_t cdls; \ - \ - __CDEBUG(&cdls, mask, format, ## __VA_ARGS__);\ +# define CDEBUG_LIMIT(mask, format, ...) \ +do { \ + static struct cfs_debug_limit_state cdls; \ + \ + __CDEBUG_WITH_LOC(__FILE__, __func__, __LINE__, \ + mask, &cdls, format, ## __VA_ARGS__); \ } while (0) -#else /* !CDEBUG_ENABLED */ +# else /* !CDEBUG_ENABLED */ static inline int cfs_cdebug_show(unsigned int mask, unsigned int subsystem) { - return 0; + return 0; } -#define CDEBUG(mask, format, ...) (void)(0) -#define CDEBUG_LIMIT(mask, format, ...) (void)(0) -#warning "CDEBUG IS DISABLED. THIS SHOULD NEVER BE DONE FOR PRODUCTION!" -#endif - -#else /* !__KERNEL__ && (!__arch_lib__ || LUSTRE_UTILS) */ -static inline int cfs_cdebug_show(unsigned int mask, unsigned int subsystem) -{ - return 0; -} -#define CDEBUG(mask, format, ...) \ -do { \ - if (((mask) & D_CANTMASK) != 0) \ - fprintf(stderr, "(%s:%d:%s()) " format, \ - __FILE__, __LINE__, __FUNCTION__, ## __VA_ARGS__);\ -} while (0) - -#define CDEBUG_LIMIT CDEBUG - -#endif /* !__KERNEL__ ... */ +# define CDEBUG(mask, format, ...) (void)(0) +# define CDEBUG_LIMIT(mask, format, ...) (void)(0) +# warning "CDEBUG IS DISABLED. THIS SHOULD NEVER BE DONE FOR PRODUCTION!" +# endif /* CDEBUG_ENABLED */ +/* + * Lustre Error Checksum: calculates checksum + * of Hex number by XORing each bit. + */ +#define LERRCHKSUM(hexnum) (((hexnum) & 0xf) ^ ((hexnum) >> 4 & 0xf) ^ \ + ((hexnum) >> 8 & 0xf)) #define CWARN(format, ...) CDEBUG_LIMIT(D_WARNING, format, ## __VA_ARGS__) #define CERROR(format, ...) CDEBUG_LIMIT(D_ERROR, format, ## __VA_ARGS__) @@ -272,95 +209,95 @@ do { \ "%x-%x: " format, errnum, LERRCHKSUM(errnum), ## __VA_ARGS__) #define LCONSOLE_ERROR(format, ...) LCONSOLE_ERROR_MSG(0x00, format, ## __VA_ARGS__) -#define LCONSOLE_EMERG(format, ...) CDEBUG(D_CONSOLE | D_EMERG, format, ## __VA_ARGS__) +#define LCONSOLE_EMERG(format, ...) \ + CDEBUG(D_CONSOLE | D_EMERG, format, ## __VA_ARGS__) -#ifdef CDEBUG_ENABLED +int libcfs_debug_msg(struct libcfs_debug_msg_data *msgdata, + const char *format1, ...) + __printf(2, 3); -void libcfs_log_goto(struct libcfs_debug_msg_data *, const char *, long_ptr_t); -#define GOTO(label, rc) \ -do { \ - if (cfs_cdebug_show(D_TRACE, DEBUG_SUBSYSTEM)) { \ - LIBCFS_DEBUG_MSG_DATA_DECL(msgdata, D_TRACE, NULL); \ - libcfs_log_goto(&msgdata, #label, (long_ptr_t)(rc)); \ - } else { \ - (void)(rc); \ - } \ - goto label; \ -} while (0) -#else -#define GOTO(label, rc) do { ((void)(rc)); goto label; } while (0) -#endif +/* other external symbols that tracefile provides: */ +int cfs_trace_copyout_string(char __user *usr_buffer, int usr_buffer_nob, + const char *knl_buffer, char *append); -#ifdef CDEBUG_ENTRY_EXIT +#define LIBCFS_DEBUG_FILE_PATH_DEFAULT "/tmp/lustre-log" -/* - * if rc == NULL, we need to code as RETURN((void *)NULL), otherwise - * there will be a warning in osx. - */ -#if defined(__GNUC__) +#if defined(CDEBUG_ENTRY_EXIT) -long libcfs_log_return(struct libcfs_debug_msg_data *, long rc); -#if BITS_PER_LONG > 32 -#define RETURN(rc) \ -do { \ - EXIT_NESTING; \ - if (cfs_cdebug_show(D_TRACE, DEBUG_SUBSYSTEM)) { \ - LIBCFS_DEBUG_MSG_DATA_DECL(msgdata, D_TRACE, NULL); \ - return (typeof(rc))libcfs_log_return(&msgdata, \ - (long)(rc)); \ - } \ - \ - return (rc); \ +static inline long libcfs_log_return(struct libcfs_debug_msg_data *msgdata, long rc) +{ + libcfs_debug_msg(msgdata, "Process leaving (rc=%lu : %ld : %lx)\n", + rc, rc, rc); + return rc; +} + +static inline void libcfs_log_goto(struct libcfs_debug_msg_data *msgdata, + const char *label, long rc) +{ + libcfs_debug_msg(msgdata, + "Process leaving via %s (rc=%lu : %ld : %#lx)\n", + label, rc, rc, rc); +} + +# define GOTO(label, rc) \ +do { \ + if (cfs_cdebug_show(D_TRACE, DEBUG_SUBSYSTEM)) { \ + LIBCFS_DEBUG_MSG_DATA_DECL(_goto_data, D_TRACE, NULL); \ + libcfs_log_goto(&_goto_data, #label, (long)(rc)); \ + } else { \ + (void)(rc); \ + } \ + \ + goto label; \ } while (0) -#else /* BITS_PER_LONG == 32 */ + +# if BITS_PER_LONG > 32 +# define RETURN(rc) \ +do { \ + if (cfs_cdebug_show(D_TRACE, DEBUG_SUBSYSTEM)) { \ + LIBCFS_DEBUG_MSG_DATA_DECL(msgdata, D_TRACE, NULL); \ + return (typeof(rc))libcfs_log_return(&msgdata, \ + (long)(rc)); \ + } \ + \ + return rc; \ +} while (0) +# else /* BITS_PER_LONG == 32 */ /* We need an on-stack variable, because we cannot case a 32-bit pointer * directly to (long long) without generating a complier warning/error, yet * casting directly to (long) will truncate 64-bit return values. The log * values will print as 32-bit values, but they always have been. LU-1436 */ -#define RETURN(rc) \ -do { \ - EXIT_NESTING; \ - if (cfs_cdebug_show(D_TRACE, DEBUG_SUBSYSTEM)) { \ - typeof(rc) __rc = (rc); \ - LIBCFS_DEBUG_MSG_DATA_DECL(msgdata, D_TRACE, NULL); \ - libcfs_log_return(&msgdata, (long_ptr_t)__rc); \ - return __rc; \ - } \ - \ - return (rc); \ -} while (0) -#endif /* BITS_PER_LONG > 32 */ - -#elif defined(_MSC_VER) -#define RETURN(rc) \ -do { \ - CDEBUG(D_TRACE, "Process leaving.\n"); \ - EXIT_NESTING; \ - return (rc); \ -} while (0) -#else -# error "Unkown compiler" -#endif /* __GNUC__ */ - -#define ENTRY \ -ENTRY_NESTING; \ -do { \ - CDEBUG(D_TRACE, "Process entered\n"); \ +# define RETURN(rc) \ +do { \ + if (cfs_cdebug_show(D_TRACE, DEBUG_SUBSYSTEM)) { \ + typeof(rc) __rc = (rc); \ + LIBCFS_DEBUG_MSG_DATA_DECL(msgdata, D_TRACE, NULL); \ + libcfs_log_return(&msgdata, (long)__rc); \ + return __rc; \ + } \ + \ + return rc; \ } while (0) -#define EXIT \ -do { \ - CDEBUG(D_TRACE, "Process leaving\n"); \ - EXIT_NESTING; \ -} while(0) +# endif /* BITS_PER_LONG > 32 */ + +# define ENTRY CDEBUG(D_TRACE, "Process entered\n") +# define EXIT CDEBUG(D_TRACE, "Process leaving\n") + #else /* !CDEBUG_ENTRY_EXIT */ -#define RETURN(rc) return (rc) -#define ENTRY do { } while (0) -#define EXIT do { } while (0) +# define GOTO(label, rc) \ + do { \ + ((void)(rc)); \ + goto label; \ + } while (0) + +# define RETURN(rc) return (rc) +# define ENTRY do { } while (0) +# define EXIT do { } while (0) -#endif /* !CDEBUG_ENTRY_EXIT */ +#endif /* CDEBUG_ENTRY_EXIT */ #define RETURN_EXIT \ do { \ @@ -368,25 +305,6 @@ do { \ return; \ } while (0) -extern int libcfs_debug_msg(struct libcfs_debug_msg_data *msgdata, - const char *format1, ...) - __attribute__ ((format (printf, 2, 3))); - -extern int libcfs_debug_vmsg2(struct libcfs_debug_msg_data *msgdata, - const char *format1, - va_list args, const char *format2, ...) - __attribute__ ((format (printf, 4, 5))); - -/* other external symbols that tracefile provides: */ -extern int cfs_trace_copyin_string(char *knl_buffer, int knl_buffer_nob, - const char *usr_buffer, int usr_buffer_nob); -extern int cfs_trace_copyout_string(char *usr_buffer, int usr_buffer_nob, - const char *knl_buffer, char *append); - -#if defined(__WINNT__) -#define LIBCFS_DEBUG_FILE_PATH_DEFAULT "\\SystemRoot\\temp\\lustre-log" -#else -#define LIBCFS_DEBUG_FILE_PATH_DEFAULT "/tmp/lustre-log" -#endif +void cfs_debug_init(void); #endif /* __LIBCFS_DEBUG_H__ */