* Copyright (c) 2008, 2010, Oracle and/or its affiliates. All rights reserved.
* Use is subject to license terms.
*
- * Copyright (c) 2012, 2014, Intel Corporation.
+ * Copyright (c) 2012, 2017, Intel Corporation.
*/
/*
* This file is part of Lustre, http://www.lustre.org/
#ifndef __LIBCFS_DEBUG_H__
#define __LIBCFS_DEBUG_H__
+#include <stdarg.h>
+#include <linux/limits.h>
+#include <uapi/linux/lnet/libcfs_debug.h>
+
/*
* Debugging
*/
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;
- /* time_t overflow in 2106 */
- __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) */
-#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
-#define S_SNAPSHOT 0x00200000
-/* 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 */
-
-#define LIBCFS_DEBUG_SUBSYS_NAMES { \
- "undefined", "mdc", "mds", "osc", "ost", "class", "log", \
- "llite", "rpc", "mgmt", "lnet", "lnd", "pinger", "filter", "", \
- "echo", "ldlm", "lov", "lquota", "osd", "lfsck", "snapshot", "",\
- "lmv", "", "sec", "gss", "", "mgc", "mgs", "fid", "fld", NULL }
-
-/* Debugging masks (32 bits, non-overlapping) */
-#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 */
-#define D_HSM 0x20000000
-#define D_SNAPSHOT 0x40000000 /* snapshot */
-
-#define LIBCFS_DEBUG_MASKS_NAMES { \
- "trace", "inode", "super", "ext2", "malloc", "cache", "info", \
- "ioctl", "neterror", "net", "warning", "buffs", "other", \
- "dentry", "nettrace", "page", "dlmtrace", "error", "emerg", \
- "ha", "rpctrace", "vfstrace", "reada", "mmap", "config", \
- "console", "quota", "sec", "lfsck", "hsm", "snapshot", NULL }
-
-#define D_CANTMASK (D_ERROR | D_EMERG | D_WARNING | D_CONSOLE)
-
#ifndef DEBUG_SUBSYSTEM
# define DEBUG_SUBSYSTEM S_UNDEFINED
#endif
.msg_cdls = (cdls) }; \
dataname.msg_mask = (mask);
-#ifdef __KERNEL__
+#ifdef CDEBUG_ENABLED
-# 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.
# warning "CDEBUG IS DISABLED. THIS SHOULD NEVER BE DONE FOR PRODUCTION!"
# endif /* CDEBUG_ENABLED */
-#else /* !__KERNEL__ */
-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__ */
-
/*
* Lustre Error Checksum: calculates checksum
* of Hex number by XORing each bit.
#define LCONSOLE_EMERG(format, ...) CDEBUG(D_CONSOLE | D_EMERG, format, ## __VA_ARGS__)
-#if defined(CDEBUG_ENTRY_EXIT) && defined(__KERNEL__)
+#if defined(CDEBUG_ENTRY_EXIT)
void libcfs_log_goto(struct libcfs_debug_msg_data *goto_data,
const char *label, long rc);
# define ENTRY CDEBUG(D_TRACE, "Process entered\n")
# define EXIT CDEBUG(D_TRACE, "Process leaving\n")
-#else /* !CDEBUG_ENTRY_EXIT || !__KERNEL__ */
+#else /* !CDEBUG_ENTRY_EXIT */
# define GOTO(label, rc) \
do { \
# define ENTRY do { } while (0)
# define EXIT do { } while (0)
-#endif /* CDEBUG_ENTRY_EXIT && __KERNEL__ */
+#endif /* CDEBUG_ENTRY_EXIT */
#define RETURN_EXIT \
do { \
va_list args, const char *format2, ...)
__attribute__ ((format (printf, 4, 5)));
-#ifdef __KERNEL__
/* other external symbols that tracefile provides: */
extern int cfs_trace_copyin_string(char *knl_buffer, int knl_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);
-#endif /* __KERNEL__ */
#define LIBCFS_DEBUG_FILE_PATH_DEFAULT "/tmp/lustre-log"
git://git.whamcloud.com / fs / lustre-release.git / blobdiff