-/* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
- * vim:expandtab:shiftwidth=8:tabstop=8:
+/*
+ * GPL HEADER START
*
- * Copyright (C) 2001, 2002 Cluster File Systems, Inc.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
- * This file is part of Portals, http://www.sf.net/projects/lustre/
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 only,
+ * as published by the Free Software Foundation.
*
- * Portals is free software; you can redistribute it and/or
- * modify it under the terms of version 2 of the GNU General Public
- * License as published by the Free Software Foundation.
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License version 2 for more details (a copy is included
+ * in the LICENSE file that accompanied this code).
*
- * Portals is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
+ * You should have received a copy of the GNU General Public License
+ * version 2 along with this program; If not, see
+ * http://www.gnu.org/licenses/gpl-2.0.html
*
- * You should have received a copy of the GNU General Public License
- * along with Portals; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ * GPL HEADER END
+ */
+/*
+ * Copyright (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved.
+ * Use is subject to license terms.
*
- * Some day I'll split all of this functionality into a cfs_debug module
- * of its own. That day is not today.
+ * Copyright (c) 2011, 2017, Intel Corporation.
+ */
+/*
+ * This file is part of Lustre, http://www.lustre.org/
+ * Lustre is a trademark of Sun Microsystems, Inc.
*
+ * lnet/utils/debug.c
+ * Some day I'll split all of this functionality into a cfs_debug module
+ * of its own. That day is not today.
*/
+#define __USE_FILE_OFFSET64
+#ifndef _GNU_SOURCE
+#define _GNU_SOURCE
+#endif
+
+#include <errno.h>
+#include <fcntl.h>
+#include <limits.h>
+#include <stdarg.h>
#include <stdio.h>
-#include <netdb.h>
#include <stdlib.h>
#include <string.h>
-#include <fcntl.h>
-#include <errno.h>
-#include <unistd.h>
-#include <time.h>
-
-#include <sys/types.h>
-#include <sys/socket.h>
#include <sys/ioctl.h>
+#include <sys/types.h>
#include <sys/stat.h>
-#include <sys/mman.h>
-#include <asm/atomic.h>
-#include <linux/module.h>
-#include <portals/api-support.h>
+#include <time.h>
+#include <unistd.h>
+
+#include <linux/types.h>
-#include "lctl.h"
+#include <libcfs/util/ioctl.h>
+#include <libcfs/util/param.h>
+#include <linux/lnet/libcfs_debug.h>
+#include <linux/lnet/lnetctl.h>
+#include <libcfs/util/string.h>
static char rawbuf[8192];
static char *buf = rawbuf;
static int max = 8192;
-static int g_pfd = -1;
-static int subsystem_array[1 << 8];
+/*static int g_pfd = -1;*/
+static int subsystem_mask = ~0;
static int debug_mask = ~0;
-static const char *portal_debug_subsystems[] =
- {"undefined", "mdc", "mds", "osc", "ost", "class", "obdfs", "llite",
- "rpc", "ext2obd", "portals", "socknal", "qswnal", "pinger", "filter",
- "obdtrace", "echo", "ldlm", "lov", "gmnal", "router", NULL};
-static const char *portal_debug_masks[] =
- {"trace", "inode", "super", "ext2", "malloc", "cache", "info", "ioctl",
- "blocks", "net", "warning", "buffs", "other", "dentry", "portals",
- "page", "dlmtrace", NULL};
-
-int debug_setup(int argc, char **argv) {
- memset(subsystem_array, 1, sizeof(subsystem_array));
- return 0;
+#define MAX_MARK_SIZE 256
+
+static const char *libcfs_debug_subsystems[] = LIBCFS_DEBUG_SUBSYS_NAMES;
+static const char *libcfs_debug_masks[] = LIBCFS_DEBUG_MASKS_NAMES;
+
+#define DAEMON_CTL_NAME "daemon_file"
+#define SUBSYS_DEBUG_CTL_NAME "subsystem_debug"
+#define DEBUG_CTL_NAME "debug"
+#define DUMP_KERNEL_CTL_NAME "dump_kernel"
+
+/*
+ * Open the parameter file "debug" which controls the debugging
+ * flags used to determine what information ends up in the lustre
+ * logs collected by lctl dk or the debug daemon.
+ */
+static int
+dbg_open_ctlhandle(const char *str)
+{
+ glob_t path;
+ int fd, rc;
+
+ rc = cfs_get_param_paths(&path, "%s", str);
+ if (rc != 0) {
+ fprintf(stderr, "invalid parameter '%s'\n", str);
+ return -1;
+ }
+
+ fd = open(path.gl_pathv[0], O_WRONLY);
+ if (fd < 0)
+ fprintf(stderr, "open '%s' failed: %s\n",
+ path.gl_pathv[0], strerror(errno));
+
+ cfs_free_param_data(&path);
+ return fd;
}
-static int do_debug_mask(char *name, int enable) {
- int found = 0, i;
-
- for (i = 0; portal_debug_subsystems[i] != NULL; i++) {
- if (strcasecmp(name, portal_debug_subsystems[i]) == 0 ||
- strcasecmp(name, "all_subs") == 0) {
- fprintf(stderr, "%s output from subsystem \"%s\"\n",
- enable ? "Enabling" : "Disabling",
- portal_debug_subsystems[i]);
- subsystem_array[i] = enable;
- found = 1;
- }
- }
- for (i = 0; portal_debug_masks[i] != NULL; i++) {
- if (strcasecmp(name, portal_debug_masks[i]) == 0 ||
- strcasecmp(name, "all_types") == 0) {
- fprintf(stderr, "%s output of type \"%s\"\n",
- enable ? "Enabling" : "Disabling",
- portal_debug_masks[i]);
- if (enable)
- debug_mask |= (1 << i);
- else
- debug_mask &= ~(1 << i);
- found = 1;
- }
- }
-
- return found;
+static void
+dbg_close_ctlhandle(int fd)
+{
+ close(fd);
}
-/* if 'raw' is true, don't strip the debug information from the
- * front of the lines */
-static void dump_buffer(FILE *fd, char *buf, int size, int raw) {
- char *p, *z;
- unsigned long subsystem, debug, dropped = 0, kept = 0;
- int max_sub, max_type;
-
- for (max_sub = 0; portal_debug_subsystems[max_sub] != NULL; max_sub++)
- ;
- for (max_type = 0; portal_debug_masks[max_type] != NULL; max_type++)
- ;
-
- while (size) {
- p = memchr(buf, '\n', size);
- if (!p)
- break;
- subsystem = strtoul(buf, &z, 16);
- debug = strtoul(z + 1, &z, 16);
-
- z++;
- /* for some reason %*s isn't working. */
- *p = '\0';
- if (subsystem < max_sub &&
- subsystem_array[subsystem] &&
- (!debug || (debug_mask & debug))) {
- if (raw)
- fprintf(fd, "%s\n", buf);
- else
- fprintf(fd, "%s\n", z);
- //printf("%s\n", buf);
- kept++;
- } else {
- //fprintf(stderr, "dropping line (%lx:%lx): %s\n", subsystem, debug, buf);
- dropped++;
- }
- *p = '\n';
- p++;
- size -= (p - buf);
- buf = p;
- }
-
- fprintf(stderr, "Debug log: %lu lines, %lu kept, %lu dropped.\n",
- dropped + kept, kept, dropped);
+static int
+dbg_write_cmd(int fd, char *str, int len)
+{
+ int rc = write(fd, str, len);
+
+ return (rc == len ? 0 : 1);
}
-int jt_debug_kernel(int argc, char **argv) {
- int rc, raw = 0;
- FILE *fd = stdout;
- const int databuf_size = (6 << 20);
- struct portal_ioctl_data data, *newdata;
- char *databuf = NULL;
-
- PORTALS_CONNECT;
-
- if (argc > 3)
- return CMD_HELP;
-
- if (argc > 1) {
- fd = fopen(argv[1], "w");
- if (fd == NULL) {
- fprintf(stderr, "fopen(%s) failed: %s\n", argv[1],
- strerror(errno));
- return -1;
- }
- }
- if (argc > 2)
- raw = atoi(argv[2]);
-
- databuf = malloc(databuf_size);
- if (!databuf) {
- fprintf(stderr, "No memory for buffer.\n");
- goto out;
- }
-
- memset(&data, 0, sizeof(data));
- data.ioc_plen1 = databuf_size;
- data.ioc_pbuf1 = databuf;
-
- if (portal_ioctl_pack(&data, &buf, max) != 0) {
- fprintf(stderr, "portal_ioctl_pack failed.\n");
- goto out;
- }
-
- rc = ioctl(g_pfd, IOC_PORTAL_GET_DEBUG, buf);
- if (rc) {
- fprintf(stderr, "IOC_PORTAL_GET_DEBUG failed: %s\n",
- strerror(errno));
- goto out;
- }
-
- newdata = (struct portal_ioctl_data *)buf;
- if (newdata->ioc_size > 0)
- dump_buffer(fd, databuf, newdata->ioc_size, raw);
- else
- fprintf(stderr, "No data in the debug buffer.\n");
-out:
- if (databuf)
- free(databuf);
- if (fd != stdout)
- fclose(fd);
- return 0;
+static int do_debug_mask(char *name, int enable)
+{
+ int found = 0;
+ int i;
+
+ for (i = 0; libcfs_debug_subsystems[i] != NULL; i++) {
+ if (strcasecmp(name, libcfs_debug_subsystems[i]) == 0 ||
+ strcasecmp(name, "all_subs") == 0) {
+ printf("%s output from subsystem \"%s\"\n",
+ enable ? "Enabling" : "Disabling",
+ libcfs_debug_subsystems[i]);
+ if (enable)
+ subsystem_mask |= (1 << i);
+ else
+ subsystem_mask &= ~(1 << i);
+ found = 1;
+ }
+ }
+ for (i = 0; libcfs_debug_masks[i] != NULL; i++) {
+ if (strcasecmp(name, libcfs_debug_masks[i]) == 0 ||
+ strcasecmp(name, "all_types") == 0) {
+ printf("%s output of type \"%s\"\n",
+ enable ? "Enabling" : "Disabling",
+ libcfs_debug_masks[i]);
+ if (enable)
+ debug_mask |= (1 << i);
+ else
+ debug_mask &= ~(1 << i);
+ found = 1;
+ }
+ }
+
+ return found;
}
-int jt_debug_file(int argc, char **argv) {
- int rc, fd = -1, raw = 0;
- FILE *output = stdout;
- char *databuf = NULL;
- struct stat statbuf;
-
- if (argc > 4 || argc < 2)
- return CMD_HELP;
-
- fd = open(argv[1], O_RDONLY);
- if (fd < 0) {
- fprintf(stderr, "fopen(%s) failed: %s\n", argv[1],
- strerror(errno));
- return -1;
- }
- rc = fstat(fd, &statbuf);
- if (rc < 0) {
- fprintf(stderr, "fstat failed: %s\n", strerror(errno));
- goto out;
- }
-
- if (argc == 3) {
- output = fopen(argv[2], "w");
- if (output == NULL) {
- fprintf(stderr, "fopen(%s) failed: %s\n", argv[2],
- strerror(errno));
- goto out;
- }
- }
-
- if (argc == 4)
- raw = atoi(argv[3]);
-
- databuf = mmap(NULL, statbuf.st_size, PROT_READ | PROT_WRITE,
- MAP_PRIVATE, fd, 0);
- if (databuf == NULL) {
- fprintf(stderr, "mmap failed: %s\n", strerror(errno));
- goto out;
- }
-
- dump_buffer(output, databuf, statbuf.st_size, raw);
+int dbg_initialize(int argc, char **argv)
+{
+ return 0;
+}
-out:
- if (databuf)
- munmap(databuf, statbuf.st_size);
- if (output != stdout)
- fclose(output);
- if (fd > 0)
- close(fd);
- return 0;
+int jt_dbg_filter(int argc, char **argv)
+{
+ int i;
+
+ if (argc < 2) {
+ fprintf(stderr, "usage: %s <subsystem ID or debug mask>\n",
+ argv[0]);
+ return 0;
+ }
+
+ for (i = 1; i < argc; i++)
+ if (!do_debug_mask(argv[i], 0))
+ fprintf(stderr, "Unknown subsystem or debug type: %s\n",
+ argv[i]);
+ return 0;
}
-int jt_debug_clear(int argc, char **argv) {
- int rc;
- struct portal_ioctl_data data;
-
- PORTALS_CONNECT;
- if (argc != 1)
- return CMD_HELP;
-
- memset(&data, 0, sizeof(data));
- if (portal_ioctl_pack(&data, &buf, max) != 0) {
- fprintf(stderr, "portal_ioctl_pack failed.\n");
- return -1;
- }
-
- rc = ioctl(g_pfd, IOC_PORTAL_CLEAR_DEBUG, buf);
- if (rc) {
- fprintf(stderr, "IOC_PORTAL_CLEAR_DEBUG failed: %s\n",
- strerror(errno));
- return -1;
- }
- return 0;
+int jt_dbg_show(int argc, char **argv)
+{
+ int i;
+
+ if (argc < 2) {
+ fprintf(stderr, "usage: %s <subsystem ID or debug mask>\n",
+ argv[0]);
+ return 0;
+ }
+
+ for (i = 1; i < argc; i++)
+ if (!do_debug_mask(argv[i], 1))
+ fprintf(stderr, "Unknown subsystem or debug type: %s\n",
+ argv[i]);
+
+ return 0;
}
-int jt_debug_mark(int argc, char **argv) {
- int rc;
- struct portal_ioctl_data data;
- char *text;
- time_t now = time(NULL);
-
- PORTALS_CONNECT;
- if (argc > 2)
- return CMD_HELP;
-
- if (argc == 2) {
- text = argv[1];
- } else {
- text = ctime(&now);
- text[strlen(text) - 1] = '\0'; /* stupid \n */
- }
-
- memset(&data, 0, sizeof(data));
- data.ioc_inllen1 = strlen(text) + 1;
- data.ioc_inlbuf1 = text;
- if (portal_ioctl_pack(&data, &buf, max) != 0) {
- fprintf(stderr, "portal_ioctl_pack failed.\n");
- return -1;
- }
-
- rc = ioctl(g_pfd, IOC_PORTAL_MARK_DEBUG, buf);
- if (rc) {
- fprintf(stderr, "IOC_PORTAL_MARK_DEBUG failed: %s\n",
- strerror(errno));
- return -1;
- }
- return 0;
+static int applymask(char *param, int value)
+{
+ int rc;
+ char buf[64];
+ int len = snprintf(buf, 64, "%d", value);
+
+ int fd = dbg_open_ctlhandle(param);
+ if (fd < 0)
+ return fd;
+
+ rc = dbg_write_cmd(fd, buf, len+1);
+ if (rc != 0) {
+ fprintf(stderr, "Write to %s failed: %s\n",
+ param, strerror(errno));
+ }
+
+ dbg_close_ctlhandle(fd);
+
+ return rc;
}
-int jt_debug_filter(int argc, char **argv) {
- int i;
-
- if (argc < 2)
- return CMD_HELP;
-
- for (i = 1; i < argc; i++)
- if (!do_debug_mask(argv[i], 0))
- fprintf(stderr, "Unknown subsystem or "
- "debug type: %s\n", argv[i]);
- return 0;
+static void applymask_all(unsigned int subs_mask, unsigned int debug_mask)
+{
+ applymask(SUBSYS_DEBUG_CTL_NAME, subs_mask);
+ applymask(DEBUG_CTL_NAME, debug_mask);
+ printf("Applied subsystem_debug=%d, debug=%d to lnet\n",
+ subs_mask, debug_mask);
}
-int jt_debug_show(int argc, char **argv) {
- int i;
-
- if (argc < 2)
- return CMD_HELP;
+int jt_dbg_list(int argc, char **argv)
+{
+ int i;
+
+ if (argc != 2) {
+ fprintf(stderr, "usage: %s <subs || types>\n", argv[0]);
+ return 0;
+ }
+
+ if (strcasecmp(argv[1], "subs") == 0) {
+ printf("Subsystems: all_subs");
+ for (i = 0; libcfs_debug_subsystems[i] != NULL; i++)
+ if (libcfs_debug_subsystems[i][0])
+ printf(", %s", libcfs_debug_subsystems[i]);
+ printf("\n");
+ } else if (strcasecmp(argv[1], "types") == 0) {
+ printf("Types: all_types");
+ for (i = 0; libcfs_debug_masks[i] != NULL; i++)
+ printf(", %s", libcfs_debug_masks[i]);
+ printf("\n");
+ } else if (strcasecmp(argv[1], "applymasks") == 0) {
+ applymask_all(subsystem_mask, debug_mask);
+ }
+ return 0;
+}
+
+/* all strings nul-terminated; only the struct and hdr need to be freed */
+struct dbg_line {
+ struct ptldebug_header *hdr;
+ char *file;
+ char *fn;
+ char *text;
+};
+
+static int cmp_rec(const void *p1, const void *p2)
+{
+ struct dbg_line *d1 = *(struct dbg_line **)p1;
+ struct dbg_line *d2 = *(struct dbg_line **)p2;
+
+ if (d1->hdr->ph_sec < d2->hdr->ph_sec)
+ return -1;
+ if (d1->hdr->ph_sec == d2->hdr->ph_sec &&
+ d1->hdr->ph_usec < d2->hdr->ph_usec)
+ return -1;
+ if (d1->hdr->ph_sec == d2->hdr->ph_sec &&
+ d1->hdr->ph_usec == d2->hdr->ph_usec)
+ return 0;
+ return 1;
+}
+
+static void print_rec(struct dbg_line ***linevp, int used, int fdout)
+{
+ struct dbg_line **linev = *linevp;
+ int i;
+
+ qsort(linev, used, sizeof(struct dbg_line *), cmp_rec);
+ for (i = 0; i < used; i++) {
+ struct dbg_line *line = linev[i];
+ struct ptldebug_header *hdr = line->hdr;
+ char out[4097];
+ char *buf = out;
+ int bytes;
+ ssize_t bytes_written;
+
+ bytes = snprintf(out, sizeof(out),
+ "%08x:%08x:%u.%u%s:%u.%06llu:%u:%u:%u:"
+ "(%s:%u:%s()) %s",
+ hdr->ph_subsys, hdr->ph_mask,
+ hdr->ph_cpu_id, hdr->ph_type,
+ hdr->ph_flags & PH_FLAG_FIRST_RECORD ? "F" : "",
+ hdr->ph_sec, (unsigned long long)hdr->ph_usec,
+ hdr->ph_stack, hdr->ph_pid, hdr->ph_extern_pid,
+ line->file, hdr->ph_line_num, line->fn,
+ line->text);
+ while (bytes > 0) {
+ bytes_written = write(fdout, buf, bytes);
+ if (bytes_written <= 0)
+ break;
+ bytes -= bytes_written;
+ buf += bytes_written;
+ }
+ free(line->hdr);
+ free(line);
+ }
+ free(linev);
+ *linevp = NULL;
+}
+
+static int add_rec(struct dbg_line *line, struct dbg_line ***linevp, int *lenp,
+ int used)
+{
+ struct dbg_line **linev = *linevp;
+
+ if (used == *lenp) {
+ int nlen = *lenp + 4096;
+ int nsize = nlen * sizeof(struct dbg_line *);
- for (i = 1; i < argc; i++)
- if (!do_debug_mask(argv[i], 1))
- fprintf(stderr, "Unknown subsystem or "
- "debug type: %s\n", argv[i]);
+ linev = realloc(*linevp, nsize);
+ if (!linev)
+ return -ENOMEM;
- return 0;
+ *linevp = linev;
+ *lenp = nlen;
+ }
+ linev[used] = line;
+
+ return 0;
+}
+
+static void dump_hdr(unsigned long long offset, struct ptldebug_header *hdr)
+{
+ fprintf(stderr, "badly-formed record at offset = %llu\n", offset);
+ fprintf(stderr, " len = %u\n", hdr->ph_len);
+ fprintf(stderr, " flags = %x\n", hdr->ph_flags);
+ fprintf(stderr, " subsystem = %x\n", hdr->ph_subsys);
+ fprintf(stderr, " mask = %x\n", hdr->ph_mask);
+ fprintf(stderr, " cpu_id = %u\n", hdr->ph_cpu_id);
+ fprintf(stderr, " type = %u\n", hdr->ph_type);
+ fprintf(stderr, " seconds = %u\n", hdr->ph_sec);
+ fprintf(stderr, " microseconds = %lu\n", (long)hdr->ph_usec);
+ fprintf(stderr, " stack = %u\n", hdr->ph_stack);
+ fprintf(stderr, " pid = %u\n", hdr->ph_pid);
+ fprintf(stderr, " host pid = %u\n", hdr->ph_extern_pid);
+ fprintf(stderr, " line number = %u\n", hdr->ph_line_num);
+}
+
+#define HDR_SIZE sizeof(*hdr)
+
+static int parse_buffer(int fdin, int fdout)
+{
+ struct dbg_line *line;
+ struct ptldebug_header *hdr;
+ char buf[4097];
+ char *ptr;
+ unsigned long dropped = 0;
+ unsigned long kept = 0;
+ unsigned long bad = 0;
+ struct dbg_line **linev = NULL;
+ int linev_len = 0;
+ int rc;
+
+ hdr = (void *)buf;
+
+ while (1) {
+ int first_bad = 1;
+ int count;
+
+ count = HDR_SIZE;
+ ptr = buf;
+readhdr:
+ rc = read(fdin, ptr, count);
+ if (rc <= 0)
+ goto print;
+
+ ptr += rc;
+ count -= rc;
+ if (count > 0)
+ goto readhdr;
+
+ if (hdr->ph_len > 4094 || /* is this header bogus? */
+ hdr->ph_stack > 65536 ||
+ hdr->ph_sec < (1 << 30) ||
+ hdr->ph_usec > 1000000000 ||
+ hdr->ph_line_num > 65536) {
+ if (first_bad)
+ dump_hdr(lseek(fdin, 0, SEEK_CUR), hdr);
+ bad += first_bad;
+ first_bad = 0;
+
+ /* try to restart on next line */
+ while (count < HDR_SIZE && buf[count] != '\n')
+ count++;
+ if (buf[count] == '\n')
+ count++; /* move past '\n' */
+ if (HDR_SIZE - count > 0) {
+ int left = HDR_SIZE - count;
+
+ memmove(buf, buf + count, left);
+ ptr = buf + left;
+
+ goto readhdr;
+ }
+
+ continue;
+ }
+
+ if (hdr->ph_len == 0)
+ continue;
+
+ count = hdr->ph_len - HDR_SIZE;
+readmore:
+ rc = read(fdin, ptr, count);
+ if (rc <= 0)
+ break;
+
+ ptr += rc;
+ count -= rc;
+ if (count > 0)
+ goto readmore;
+
+ first_bad = 1;
+
+ if ((hdr->ph_subsys && !(subsystem_mask & hdr->ph_subsys)) ||
+ (hdr->ph_mask && !(debug_mask & hdr->ph_mask))) {
+ dropped++;
+ continue;
+ }
+
+retry_alloc:
+ line = malloc(sizeof(*line));
+ if (line == NULL) {
+ if (linev) {
+ fprintf(stderr, "error: line malloc(%u): "
+ "printing accumulated records\n",
+ (unsigned int)sizeof(*line));
+ print_rec(&linev, kept, fdout);
+
+ goto retry_alloc;
+ }
+ fprintf(stderr, "error: line malloc(%u): exiting\n",
+ (unsigned int)sizeof(*line));
+ break;
+ }
+
+ line->hdr = malloc(hdr->ph_len + 1);
+ if (line->hdr == NULL) {
+ free(line);
+ if (linev) {
+ fprintf(stderr, "error: hdr malloc(%u): "
+ "printing accumulated records\n",
+ hdr->ph_len + 1);
+ print_rec(&linev, kept, fdout);
+
+ goto retry_alloc;
+ }
+ fprintf(stderr, "error: hdr malloc(%u): exiting\n",
+ hdr->ph_len + 1);
+ break;
+ }
+
+ ptr = (void *)line->hdr;
+ memcpy(line->hdr, buf, hdr->ph_len);
+ ptr[hdr->ph_len] = '\0';
+
+ ptr += sizeof(*hdr);
+ line->file = ptr;
+ ptr += strlen(line->file) + 1;
+ line->fn = ptr;
+ ptr += strlen(line->fn) + 1;
+ line->text = ptr;
+
+retry_add:
+ if (add_rec(line, &linev, &linev_len, kept) < 0) {
+ if (linev) {
+ fprintf(stderr, "error: add_rec[%u] failed; "
+ "print accumulated records\n",
+ linev_len);
+ print_rec(&linev, kept, fdout);
+
+ goto retry_add;
+ }
+ fprintf(stderr, "error: add_rec[0] failed; exiting\n");
+ break;
+ }
+ kept++;
+ }
+
+print:
+ if (linev)
+ print_rec(&linev, kept, fdout);
+
+ printf("Debug log: %lu lines, %lu kept, %lu dropped, %lu bad.\n",
+ dropped + kept + bad, kept, dropped, bad);
+
+ return 0;
+}
+
+int jt_dbg_debug_kernel(int argc, char **argv)
+{
+ struct stat st;
+ char filename[PATH_MAX];
+ int raw = 0;
+ int save_errno;
+ int fdin;
+ int fdout;
+ int rc;
+
+ if (argc > 3) {
+ fprintf(stderr, "usage: %s [file] [raw]\n", argv[0]);
+ return 0;
+ }
+
+ if (argc > 2) {
+ raw = atoi(argv[2]);
+ } else if (argc > 1 && (argv[1][0] == '0' || argv[1][0] == '1')) {
+ raw = atoi(argv[1]);
+ argc--;
+ }
+
+ /* If we are dumping raw (which means no conversion step to ASCII)
+ * then dump directly to any supplied filename, otherwise this is
+ * just a temp file and we dump to the real file at convert time. */
+ if (argc > 1 && raw) {
+ if (strlen(argv[1]) >= sizeof(filename)) {
+ fprintf(stderr, "File name too long: %s\n", argv[1]);
+ return 1;
+ }
+ strncpy(filename, argv[1], sizeof(filename));
+ } else {
+ if (snprintf(filename, sizeof(filename), "%s%lu.%u",
+ LIBCFS_DEBUG_FILE_PATH_DEFAULT, time(NULL),
+ getpid())
+ >= sizeof(filename)) {
+ fprintf(stderr, "File name too long\n");
+ return 1;
+ }
+ }
+
+ if (stat(filename, &st) == 0 && S_ISREG(st.st_mode))
+ unlink(filename);
+
+ fdin = dbg_open_ctlhandle(DUMP_KERNEL_CTL_NAME);
+ if (fdin < 0) {
+ fprintf(stderr, "open(dump_kernel) failed: %s\n",
+ strerror(errno));
+ return 1;
+ }
+
+ rc = dbg_write_cmd(fdin, filename, strlen(filename));
+ save_errno = errno;
+ dbg_close_ctlhandle(fdin);
+ if (rc != 0) {
+ fprintf(stderr, "write(%s) failed: %s\n", filename,
+ strerror(save_errno));
+ return 1;
+ }
+
+ if (raw)
+ return 0;
+
+ fdin = open(filename, O_RDONLY);
+ if (fdin < 0) {
+ if (errno == ENOENT) /* no dump file created */
+ return 0;
+ fprintf(stderr, "fopen(%s) failed: %s\n", filename,
+ strerror(errno));
+ return 1;
+ }
+ if (argc > 1) {
+ fdout = open(argv[1], O_WRONLY | O_CREAT | O_TRUNC,
+ S_IRUSR | S_IWUSR);
+ if (fdout < 0) {
+ fprintf(stderr, "fopen(%s) failed: %s\n", argv[1],
+ strerror(errno));
+ close(fdin);
+ return 1;
+ }
+ } else {
+ fdout = fileno(stdout);
+ }
+
+ rc = parse_buffer(fdin, fdout);
+ close(fdin);
+ if (argc > 1)
+ close(fdout);
+ if (rc) {
+ fprintf(stderr, "parse_buffer failed; leaving tmp file %s "
+ "behind.\n", filename);
+ } else {
+ rc = unlink(filename);
+ if (rc)
+ fprintf(stderr, "dumped successfully, but couldn't "
+ "unlink tmp file %s: %s\n", filename,
+ strerror(errno));
+ }
+
+ return rc;
+}
+
+int jt_dbg_debug_file(int argc, char **argv)
+{
+ int fdin;
+ int fdout;
+ int rc;
+
+ if (argc > 3 || argc < 2) {
+ fprintf(stderr, "usage: %s <input> [output]\n", argv[0]);
+ return 0;
+ }
+
+ fdin = open(argv[1], O_RDONLY | O_LARGEFILE);
+ if (fdin < 0) {
+ fprintf(stderr, "open(%s) failed: %s\n", argv[1],
+ strerror(errno));
+ return 1;
+ }
+ if (argc > 2) {
+ fdout = open(argv[2],
+ O_CREAT | O_TRUNC | O_WRONLY | O_LARGEFILE,
+ 0600);
+ if (fdout < 0) {
+ fprintf(stderr, "open(%s) failed: %s\n", argv[2],
+ strerror(errno));
+ close(fdin);
+ return 1;
+ }
+ } else {
+ fdout = fileno(stdout);
+ }
+
+ rc = parse_buffer(fdin, fdout);
+
+ close(fdin);
+ if (fdout != fileno(stdout))
+ close(fdout);
+
+ return rc;
+}
+
+const char debug_daemon_usage[] = "usage: %s {start file [MB]|stop}\n";
+
+int jt_dbg_debug_daemon(int argc, char **argv)
+{
+ int rc;
+ int fd;
+ char *resolved_path = NULL;
+
+ if (argc <= 1) {
+ fprintf(stderr, debug_daemon_usage, argv[0]);
+ return 1;
+ }
+
+ fd = dbg_open_ctlhandle(DAEMON_CTL_NAME);
+ if (fd < 0)
+ return -1;
+
+ rc = -1;
+ if (strcasecmp(argv[1], "start") == 0) {
+ if (argc < 3 || argc > 4 ||
+ (argc == 4 && strlen(argv[3]) > 5)) {
+ fprintf(stderr, debug_daemon_usage, argv[0]);
+ goto out;
+ }
+ if (argc == 4) {
+ char buf[12];
+ const long min_size = 10;
+ const long max_size = 20480;
+ long size;
+ char *end;
+
+ size = strtoul(argv[3], &end, 0);
+ if (size < min_size ||
+ size > max_size ||
+ *end != 0) {
+ fprintf(stderr, "size %s invalid, must be in "
+ "the range %ld-%ld MB\n", argv[3],
+ min_size, max_size);
+ goto out;
+ }
+ snprintf(buf, sizeof(buf), "size=%ld", size);
+ rc = dbg_write_cmd(fd, buf, strlen(buf));
+
+ if (rc != 0) {
+ fprintf(stderr, "set %s failed: %s\n",
+ buf, strerror(errno));
+ goto out;
+ }
+ }
+
+ rc = cfs_abs_path(argv[2], &resolved_path);
+ if (rc != 0) {
+ fprintf(stderr,
+ "%s debug_daemon: cannot resolve path '%s': %s\n",
+ program_invocation_short_name, argv[2],
+ strerror(-rc));
+ goto out;
+ }
+ rc = dbg_write_cmd(fd, resolved_path, strlen(resolved_path));
+ if (rc != 0) {
+ fprintf(stderr, "start debug_daemon on %s failed: %s\n",
+ argv[2], strerror(errno));
+ goto out;
+ }
+ rc = 0;
+ goto out;
+ }
+ if (strcasecmp(argv[1], "stop") == 0) {
+ rc = dbg_write_cmd(fd, "stop", 4);
+ if (rc != 0) {
+ fprintf(stderr, "stopping debug_daemon failed: %s\n",
+ strerror(errno));
+ goto out;
+ }
+
+ rc = 0;
+ goto out;
+ }
+
+ fprintf(stderr, debug_daemon_usage, argv[0]);
+ rc = -1;
+out:
+ dbg_close_ctlhandle(fd);
+ if (resolved_path != NULL)
+ free(resolved_path);
+ return rc;
}
-int jt_debug_list(int argc, char **argv) {
- int i;
-
- if (argc != 2)
- return CMD_HELP;
-
- if (strcasecmp(argv[1], "subs") == 0) {
- printf("Subsystems: all_subs");
- for (i = 0; portal_debug_subsystems[i] != NULL; i++)
- printf(", %s", portal_debug_subsystems[i]);
- printf("\n");
- } else if (strcasecmp(argv[1], "types") == 0) {
- printf("Types: all_types");
- for (i = 0; portal_debug_masks[i] != NULL; i++)
- printf(", %s", portal_debug_masks[i]);
- printf("\n");
- }
- return 0;
+int jt_dbg_clear_debug_buf(int argc, char **argv)
+{
+ int rc;
+ struct libcfs_ioctl_data data;
+
+ if (argc != 1) {
+ fprintf(stderr, "usage: %s\n", argv[0]);
+ return 0;
+ }
+
+ memset(&data, 0, sizeof(data));
+ if (libcfs_ioctl_pack(&data, &buf, max) != 0) {
+ fprintf(stderr, "libcfs_ioctl_pack failed.\n");
+ return -1;
+ }
+
+ rc = l_ioctl(LNET_DEV_ID, IOC_LIBCFS_CLEAR_DEBUG, buf);
+ if (rc) {
+ fprintf(stderr, "IOC_LIBCFS_CLEAR_DEBUG failed: %s\n",
+ strerror(errno));
+ return -1;
+ }
+ return 0;
}
-int jt_debug_modules(int argc, char **argv) {
- char *modules[] = {"portals", "ksocknal", "obdclass", "ptlrpc",
- "obdext2", "ost", "osc", "mds", "mdc", "llite",
- "obdecho", "ldlm", "obdfilter", "extN", "lov",
- "mds_ext2", "mds_ext3", "mds_extN", NULL};
- char *paths[] = {"portals/linux/oslib", "portals/linux/socknal",
- "lustre/obdclass", "lustre/ptlrpc", "lustre/obdext2",
- "lustre/ost", "lustre/osc", "lustre/mds", "lustre/mdc",
- "lustre/llite", "lustre/obdecho", "lustre/ldlm",
- "lustre/obdfilter", "lustre/extN", "lustre/lov",
- "lustre/mds", "lustre/mds", "lustre/mds", NULL};
- char *path = "..";
- char *kernel = "linux";
- int i;
-
- if (argc >= 2)
- path = argv[1];
- if (argc == 3)
- kernel = argv[2];
- if (argc > 3) {
- printf("%s [path] [kernel]\n", argv[0]);
- return 0;
- }
-
- printf("set height 1000\n"
- "symbol-file\n"
- "delete\n"
- "symbol-file %s\n"
- "b panic\n"
- "b stop\n", kernel);
-
- for (i = 0; modules[i] != NULL; i++) {
- struct module_info info;
- int rc;
- size_t crap;
- int query_module(const char *name, int which, void *buf,
- size_t bufsize, size_t *ret);
-
- rc = query_module(modules[i], QM_INFO, &info, sizeof(info),
- &crap);
- if (rc < 0) {
- if (errno != ENOENT)
- printf("query_module(%s) failed: %s\n",
- modules[i], strerror(errno));
- } else {
- printf("add-symbol-file %s/%s/%s.o 0x%0lx\n", path,
- paths[i], modules[i],
- info.addr + sizeof(struct module));
- }
- }
- printf("set height 24\n");
-
- return 0;
+int jt_dbg_mark_debug_buf(int argc, char **argv)
+{
+ static char scratch[MAX_MARK_SIZE] = "";
+ struct libcfs_ioctl_data data;
+ char *text;
+ int rc;
+
+ memset(&data, 0, sizeof(data));
+
+ if (argc > 1) {
+ int count, max_size = sizeof(scratch) - 1;
+
+ strncpy(scratch, argv[1], max_size);
+ max_size -= strlen(argv[1]);
+ for (count = 2; (count < argc) && (max_size > 1); count++) {
+ strncat(scratch, " ", max_size);
+ max_size -= 1;
+ strncat(scratch, argv[count], max_size);
+ max_size -= strlen(argv[count]);
+ }
+ scratch[sizeof(scratch) - 1] = '\0';
+ text = scratch;
+ } else {
+ time_t now = time(NULL);
+ text = ctime(&now);
+ }
+
+ data.ioc_inllen1 = strlen(text) + 1;
+ data.ioc_inlbuf1 = text;
+
+ if (libcfs_ioctl_pack(&data, &buf, max) != 0) {
+ fprintf(stderr, "libcfs_ioctl_pack failed.\n");
+ return -1;
+ }
+
+ rc = l_ioctl(LNET_DEV_ID, IOC_LIBCFS_MARK_DEBUG, buf);
+ if (rc) {
+ fprintf(stderr, "IOC_LIBCFS_MARK_DEBUG failed: %s\n",
+ strerror(errno));
+ return -1;
+ }
+ return 0;
}
-int jt_debug_panic(int argc, char **argv) {
- int rc;
- struct portal_ioctl_data data;
-
- PORTALS_CONNECT;
- if (argc != 1)
- return CMD_HELP;
-
- memset(&data, 0, sizeof(data));
- if (portal_ioctl_pack(&data, &buf, max) != 0) {
- fprintf(stderr, "portal_ioctl_pack failed.\n");
- return -1;
- }
-
- rc = ioctl(g_pfd, IOC_PORTAL_PANIC, buf);
- if (rc) {
- fprintf(stderr, "IOC_PORTAL_PANIC failed: %s\n",
- strerror(errno));
- return -1;
- }
- return 0;
+static struct mod_paths {
+ char *name, *path;
+} mod_paths[] = {
+ { .name = "libcfs", .path = "libcfs/libcfs" },
+ { .name = "lnet", .path = "lnet/lnet" },
+ { .name = "ko2iblnd", .path = "lnet/klnds/o2iblnd" },
+ { .name = "kgnilnd", .path = "lnet/klnds/gnilnd"},
+ { .name = "ksocklnd", .path = "lnet/klnds/socklnd" },
+ { .name = "obdclass", .path = "lustre/obdclass" },
+ { .name = "llog_test", .path = "lustre/obdclass" },
+ { .name = "ptlrpc_gss", .path = "lustre/ptlrpc/gss" },
+ { .name = "ptlrpc", .path = "lustre/ptlrpc" },
+ { .name = "gks", .path = "lustre/sec/gks" },
+ { .name = "gkc", .path = "lustre/sec/gks" },
+ { .name = "ost", .path = "lustre/ost" },
+ { .name = "osc", .path = "lustre/osc" },
+ { .name = "mds", .path = "lustre/mds" },
+ { .name = "mdc", .path = "lustre/mdc" },
+ { .name = "lustre", .path = "lustre/llite" },
+ { .name = "ldiskfs", .path = "ldiskfs" },
+ { .name = "obdecho", .path = "lustre/obdecho" },
+ { .name = "ldlm", .path = "lustre/ldlm" },
+ { .name = "obdfilter", .path = "lustre/obdfilter" },
+ { .name = "lov", .path = "lustre/lov" },
+ { .name = "lmv", .path = "lustre/lmv" },
+ { .name = "lquota", .path = "lustre/quota" },
+ { .name = "mgs", .path = "lustre/mgs" },
+ { .name = "mgc", .path = "lustre/mgc" },
+ { .name = "mdt", .path = "lustre/mdt" },
+ { .name = "mdd", .path = "lustre/mdd" },
+ { .name = "osd", .path = "lustre/osd" },
+ { .name = "cmm", .path = "lustre/cmm" },
+ { .name = "fid", .path = "lustre/fid"},
+ { .name = "fld", .path = "lustre/fld"},
+ { .name = "lod", .path = "lustre/lod"},
+ { .name = "osp", .path = "lustre/osp"},
+ { .name = "lfsck", .path = "lustre/lfsck" },
+ { .name = NULL }
+};
+
+int jt_dbg_modules(int argc, char **argv)
+{
+ struct mod_paths *mp;
+ char *path = "";
+ const char *proc = "/proc/modules";
+ char modname[128];
+ char buf[4096];
+ unsigned long modaddr;
+ FILE *file;
+
+ if (argc >= 2)
+ path = argv[1];
+ if (argc > 3) {
+ printf("%s [path] [kernel]\n", argv[0]);
+ return 0;
+ }
+
+ file = fopen(proc, "r");
+ if (!file) {
+ printf("failed open %s: %s\n", proc, strerror(errno));
+ return 0;
+ }
+
+ while (fgets(buf, sizeof(buf), file) != NULL) {
+ if (sscanf(buf, "%s %*s %*s %*s %*s %lx",
+ modname, &modaddr) == 2) {
+ for (mp = mod_paths; mp->name != NULL; mp++) {
+ if (!strcmp(mp->name, modname))
+ break;
+ }
+ if (mp->name) {
+ printf("add-symbol-file %s%s%s/%s.o 0x%0lx\n",
+ path, path[0] ? "/" : "",
+ mp->path, mp->name, modaddr);
+ }
+ }
+ }
+
+ fclose(file);
+ return 0;
}