X-Git-Url: https://git.whamcloud.com/?p=fs%2Flustre-release.git;a=blobdiff_plain;f=libcfs%2Finclude%2Flibcfs%2Flibcfs_debug.h;h=e847b90a7d4bcda405242136a751416b36afe1f3;hp=0d1b713e709926717eb81d156d0960d3c77c7079;hb=bef1069506c38e6d8ebdb4393cccb5a33978a61e;hpb=0f67add39b81f28e86f1df2aaea830b250125a47 diff --git a/libcfs/include/libcfs/libcfs_debug.h b/libcfs/include/libcfs/libcfs_debug.h index 0d1b713..e847b90 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 */ @@ -27,7 +23,7 @@ * Copyright (c) 2008, 2010, Oracle and/or its affiliates. All rights reserved. * Use is subject to license terms. * - * Copyright (c) 2012, Intel Corporation. + * Copyright (c) 2012, 2017, Intel Corporation. */ /* * This file is part of Lustre, http://www.lustre.org/ @@ -42,6 +38,10 @@ #ifndef __LIBCFS_DEBUG_H__ #define __LIBCFS_DEBUG_H__ +#include +#include +#include + /* * Debugging */ @@ -64,100 +64,6 @@ int libcfs_debug_str2mask(int *mask, const char *str, int is_subsys); 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 -/* unused */ -/* 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 @@ -165,19 +71,19 @@ 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) \ @@ -199,10 +105,39 @@ do { \ .msg_cdls = (cdls) }; \ dataname.msg_mask = (mask); -#if defined(__KERNEL__) || (defined(__arch_lib__) && !defined(LUSTRE_UTILS)) - #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(msgdata, mask, cdls) \ +do { \ + if (unlikely(CDEBUG_STACK() > libcfs_stack)) { \ + LIBCFS_DEBUG_MSG_DATA_INIT(msgdata, D_WARNING, NULL); \ + libcfs_stack = CDEBUG_STACK(); \ + libcfs_debug_msg(msgdata, \ + "maximum lustre stack %lu\n", \ + CDEBUG_STACK()); \ + (msgdata)->msg_mask = mask; \ + (msgdata)->msg_cdls = cdls; \ + dump_stack(); \ + /*panic("LBUG");*/ \ + } \ +} while (0) +#define CFS_CHECK_STACK(msgdata, mask, cdls) __CHECK_STACK(msgdata, mask, cdls) +#else /* __x86_64__ */ +#define CFS_CHECK_STACK(msgdata, mask, cdls) do {} while (0) +#define CDEBUG_STACK() (0L) +#endif /* __x86_64__ */ + /** * Filters out logging messages based on mask and subsystem. */ @@ -212,7 +147,7 @@ static inline int cfs_cdebug_show(unsigned int mask, unsigned int subsystem) ((libcfs_debug & mask) && (libcfs_subsystem_debug & subsystem)); } -#define __CDEBUG(cdls, mask, format, ...) \ +# define __CDEBUG(cdls, mask, format, ...) \ do { \ static struct libcfs_debug_msg_data msgdata; \ \ @@ -224,41 +159,31 @@ do { \ } \ } while (0) -#define CDEBUG(mask, format, ...) __CDEBUG(NULL, mask, format, ## __VA_ARGS__) +# define CDEBUG(mask, format, ...) __CDEBUG(NULL, mask, 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(&cdls, mask, 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; } -#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__) @@ -274,36 +199,28 @@ do { \ #define LCONSOLE_EMERG(format, ...) CDEBUG(D_CONSOLE | D_EMERG, format, ## __VA_ARGS__) -#ifdef CDEBUG_ENABLED +#if defined(CDEBUG_ENTRY_EXIT) -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; \ +void libcfs_log_goto(struct libcfs_debug_msg_data *goto_data, + const char *label, long 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 -#define GOTO(label, rc) do { ((void)(rc)); goto label; } while (0) -#endif -#ifdef CDEBUG_ENTRY_EXIT - -/* - * if rc == NULL, we need to code as RETURN((void *)NULL), otherwise - * there will be a warning in osx. - */ -#if defined(__GNUC__) long libcfs_log_return(struct libcfs_debug_msg_data *, long rc); -#if BITS_PER_LONG > 32 -#define RETURN(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, \ @@ -312,60 +229,47 @@ do { \ \ return (rc); \ } while (0) -#else /* BITS_PER_LONG == 32 */ +# 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) \ +# 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); \ + libcfs_log_return(&msgdata, (long)__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__ */ +# endif /* BITS_PER_LONG > 32 */ -#define ENTRY \ -ENTRY_NESTING; \ -do { \ - CDEBUG(D_TRACE, "Process entered\n"); \ -} while (0) +# define ENTRY CDEBUG(D_TRACE, "Process entered\n") +# define EXIT CDEBUG(D_TRACE, "Process leaving\n") -#define EXIT \ -do { \ - CDEBUG(D_TRACE, "Process leaving\n"); \ - EXIT_NESTING; \ -} while(0) #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) -#endif /* !CDEBUG_ENTRY_EXIT */ +# define RETURN(rc) return (rc) +# define ENTRY do { } while (0) +# define EXIT do { } while (0) -#define RETURN_EXIT \ -do { \ - EXIT_NESTING; \ - return; \ +#endif /* CDEBUG_ENTRY_EXIT */ + +#define RETURN_EXIT \ +do { \ + EXIT; \ + return; \ } while (0) extern int libcfs_debug_msg(struct libcfs_debug_msg_data *msgdata, @@ -379,16 +283,11 @@ extern int libcfs_debug_vmsg2(struct libcfs_debug_msg_data *msgdata, /* 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 __user *usr_buffer, + int usr_buffer_nob); +extern int cfs_trace_copyout_string(char __user *usr_buffer, int usr_buffer_nob, const char *knl_buffer, char *append); -#if defined(__arch_um__) -#define LIBCFS_DEBUG_FILE_PATH_DEFAULT "/r/tmp/lustre-log" -#elif defined(__WINNT__) -#define LIBCFS_DEBUG_FILE_PATH_DEFAULT "\\SystemRoot\\temp\\lustre-log" -#else #define LIBCFS_DEBUG_FILE_PATH_DEFAULT "/tmp/lustre-log" -#endif #endif /* __LIBCFS_DEBUG_H__ */