obj-$(CONFIG_DT_CORE) += dtrace.o
obj-$(CONFIG_DT_FASTTRAP) += fasttrap.o
-# obj-$(CONFIG_DT_FBT) += fbt.o
-# obj-$(CONFIG_DT_LOCKSTAT) += lockstat.o
obj-$(CONFIG_DT_PROFILE) += profile.o
obj-$(CONFIG_DT_SDT) += sdt.o
obj-$(CONFIG_DT_SYSTRACE) += systrace.o
dtrace_ptofapi.o dtrace_predicate.o \
dtrace_spec.o dtrace_state.o dtrace_util.o
fasttrap-y := fasttrap_mod.o fasttrap_dev.o
-# fbt-y := fbt_mod.o fbt_dev.o
-# lockstat-y := lockstat_mod.o lockstat_dev.o
profile-y := profile_mod.o profile_dev.o
sdt-y := sdt_mod.o sdt_dev.o
systrace-y := systrace_mod.o systrace_dev.o
+++ /dev/null
-/*
- * FILE: fbt_dev.c
- * DESCRIPTION: Function Boundary Tracing: device file handling
- *
- * CDDL HEADER START
- *
- * The contents of this file are subject to the terms of the
- * Common Development and Distribution License (the "License").
- * You may not use this file except in compliance with the License.
- *
- * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
- * or http://www.opensolaris.org/os/licensing.
- * See the License for the specific language governing permissions
- * and limitations under the License.
- *
- * When distributing Covered Code, include this CDDL HEADER in each
- * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
- * If applicable, add the following below this CDDL HEADER, with the
- * fields enclosed by brackets "[]" replaced with your own identifying
- * information: Portions Copyright [yyyy] [name of copyright owner]
- *
- * CDDL HEADER END
- *
- * Copyright 2010, 2011, 2012, 2013 Oracle, Inc. All rights reserved.
- * Use is subject to license terms.
- */
-
-#include <linux/fs.h>
-#include <linux/miscdevice.h>
-#include <linux/kallsyms.h>
-#include <linux/slab.h>
-#include <asm/insn.h>
-
-#include "dtrace.h"
-#include "dtrace_dev.h"
-#include "fbt_impl.h"
-
-#define FBT_PATCHVAL 0xf0
-#define FBT_ADDR2NDX(addr) ((((uintptr_t)(addr)) >> 4) & fbt_probetab_mask)
-#define FBT_PROBETAB_SIZE 0x8000 /* 32k entries -- 128K total */
-
-static fbt_probe_t **fbt_probetab;
-static int fbt_probetab_size;
-static int fbt_probetab_mask;
-
-static unsigned long fbt_cnt_entry = 0;
-static unsigned long fbt_cnt_return = 0;
-
-static void *fbt_provide_probe(struct module *mp, char *func,
- uint8_t opc, uint8_t *addr,
- void *pfbt)
-{
- fbt_probe_t *fbt;
- fbt_probe_t *prev;
-
- switch (opc) {
- case FBT_PUSHL_EBP:
- fbt = kzalloc(sizeof(fbt_probe_t), GFP_KERNEL);
- fbt->fbp_name = func;
- fbt->fbp_id = dtrace_probe_create(fbt_id, mp->name, func,
- "entry", 3, fbt);
- fbt->fbp_module = mp;
- fbt->fbp_loadcnt = 1; /* FIXME */
- fbt->fbp_primary = 1; /* FIXME */
- fbt->fbp_patchpoint = addr;
- fbt->fbp_patchval = FBT_PATCHVAL;
- fbt->fbp_savedval = *addr;
- fbt->fbp_rval = opc;
- fbt->fbp_hashnext = fbt_probetab[FBT_ADDR2NDX(addr)];
-
- fbt_probetab[FBT_ADDR2NDX(addr)] = fbt;
-
- mp->fbt_nprobes++;
-
- fbt_cnt_entry++;
-
- return fbt;
- case FBT_RET:
- case FBT_RET_IMM16:
- fbt = kzalloc(sizeof(fbt_probe_t), GFP_KERNEL);
- fbt->fbp_name = func;
-
- prev = (fbt_probe_t *)pfbt;
- if (prev != NULL) {
- prev->fbp_next = fbt;
- fbt->fbp_id = prev->fbp_id;
- } else {
- fbt->fbp_id = dtrace_probe_create(fbt_id, mp->name,
- func, "return", 3,
- fbt);
- }
-
- fbt->fbp_module = mp;
- fbt->fbp_loadcnt = 1; /* FIXME */
- fbt->fbp_primary = 1; /* FIXME */
- fbt->fbp_patchpoint = addr;
- fbt->fbp_patchval = FBT_PATCHVAL;
- fbt->fbp_savedval = *addr;
- fbt->fbp_rval = opc;
- fbt->fbp_hashnext = fbt_probetab[FBT_ADDR2NDX(addr)];
-
- fbt_probetab[FBT_ADDR2NDX(addr)] = fbt;
-
- mp->fbt_nprobes++;
-
- fbt_cnt_return++;
-
- return fbt;
- default:
- printk(KERN_INFO "FBT: Invalid opcode for %s\n", func);
-
- return NULL;
- }
-}
-
-void fbt_provide_module(void *arg, struct module *mp)
-{
- printk(KERN_INFO "FBT: provide_module(%s)...\n", mp->name);
-
- /*
- * Nothing to do if the module FBT probes were already created.
- */
- if (mp->fbt_nprobes != 0)
- return;
-
-#if 1
-{
-ktime_t tm0;
-ktime_t tm1;
-
-tm0 = dtrace_gethrtime();
- dtrace_fbt_init(fbt_provide_probe);
-tm1 = dtrace_gethrtime();
-printk(KERN_INFO "FBT: dtrace_fbt_init() took %lld nsec\n", (signed long long)tm1.tv64 - tm0.tv64);
-}
-
- printk(KERN_INFO "FBT: Number of entry probes: %lu\n", fbt_cnt_entry);
- printk(KERN_INFO "FBT: Number of return probes: %lu\n", fbt_cnt_return);
-#else
- analyze_symbols();
-#endif
-}
-
-int _fbt_enable(void *arg, dtrace_id_t id, void *parg)
-{
- return 1;
-}
-
-void _fbt_disable(void *arg, dtrace_id_t id, void *parg)
-{
-}
-
-void fbt_destroy(void *arg, dtrace_id_t id, void *parg)
-{
- fbt_probe_t *fbt = parg;
- fbt_probe_t *nxt, *hbp, *lst;
- struct module *mp = fbt->fbp_module;
- int ndx;
-
- do {
- if (mp != NULL)
- mp->fbt_nprobes--;
-
- ndx = FBT_ADDR2NDX(fbt->fbp_patchpoint);
- lst = NULL;
- hbp = fbt_probetab[ndx];
-
- while (hbp != fbt) {
- ASSERT(hbp != NULL);
-
- lst = hbp;
- hbp = hbp->fbp_hashnext;
- }
-
- if (lst != NULL)
- lst->fbp_hashnext = fbt->fbp_hashnext;
- else
- fbt_probetab[ndx] = fbt->fbp_hashnext;
-
- nxt = fbt->fbp_next;
-
- kfree(fbt);
-
- fbt = nxt;
- } while (fbt != NULL);
-}
-
-static long fbt_ioctl(struct file *file,
- unsigned int cmd, unsigned long arg)
-{
- return -EAGAIN;
-}
-
-static int fbt_open(struct inode *inode, struct file *file)
-{
- return -EAGAIN;
-}
-
-static int fbt_close(struct inode *inode, struct file *file)
-{
- return 0;
-}
-
-static const struct file_operations fbt_fops = {
- .owner = THIS_MODULE,
- .unlocked_ioctl = fbt_ioctl,
- .open = fbt_open,
- .release = fbt_close,
-};
-
-static struct miscdevice fbt_dev = {
- .minor = DT_DEV_FBT_MINOR,
- .name = "fbt",
- .nodename = "dtrace/provider/fbt",
- .fops = &fbt_fops,
-};
-
-int fbt_dev_init(void)
-{
- int ret = 0;
-
- if (fbt_probetab_size == 0)
- fbt_probetab_size = FBT_PROBETAB_SIZE;
-
- fbt_probetab_mask = fbt_probetab_size - 1;
- fbt_probetab = dtrace_vzalloc_try(fbt_probetab_size *
- sizeof (fbt_probe_t *));
-
- ret = misc_register(&fbt_dev);
- if (ret)
- pr_err("%s: Can't register misc device %d\n",
- fbt_dev.name, fbt_dev.minor);
-
- return ret;
-}
-
-void fbt_dev_exit(void)
-{
- misc_deregister(&fbt_dev);
-
- vfree(fbt_probetab);
- fbt_probetab_mask = 0;
- fbt_probetab_size = 0;
-}
+++ /dev/null
-#ifndef _FBT_H_
-#define _FBT_H_
-
-typedef struct fbt_probe {
- char *fbp_name; /* name of probe */
- dtrace_id_t fbp_id; /* probe ID */
- struct module *fbp_module; /* defining module */
- int fbp_loadcnt; /* load count for module */
- int fbp_primary; /* non-zero if primary mod */
- uint8_t *fbp_patchpoint;/* patch point */
- uint8_t fbp_patchval; /* instruction to patch */
- uint8_t fbp_savedval; /* saved instruction value */
- uintptr_t fbp_roffset;
- int8_t fbp_rval;
- struct fbt_probe *fbp_next; /* next probe */
- struct fbt_probe *fbp_hashnext; /* next on hash */
-} fbt_probe_t;
-
-extern void fbt_provide_module(void *, struct module *);
-extern int _fbt_enable(void *arg, dtrace_id_t, void *);
-extern void _fbt_disable(void *arg, dtrace_id_t, void *);
-extern void fbt_destroy(void *, dtrace_id_t, void *);
-
-extern dtrace_provider_id_t fbt_id;
-
-extern int fbt_dev_init(void);
-extern void fbt_dev_exit(void);
-
-#endif /* _FBT_H_ */
+++ /dev/null
-/*
- * FILE: fbt_mod.c
- * DESCRIPTION: Function Boundary Tracing: module handling
- *
- * CDDL HEADER START
- *
- * The contents of this file are subject to the terms of the
- * Common Development and Distribution License (the "License").
- * You may not use this file except in compliance with the License.
- *
- * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
- * or http://www.opensolaris.org/os/licensing.
- * See the License for the specific language governing permissions
- * and limitations under the License.
- *
- * When distributing Covered Code, include this CDDL HEADER in each
- * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
- * If applicable, add the following below this CDDL HEADER, with the
- * fields enclosed by brackets "[]" replaced with your own identifying
- * information: Portions Copyright [yyyy] [name of copyright owner]
- *
- * CDDL HEADER END
- *
- * Copyright 2010, 2011, 2012, 2013 Oracle, Inc. All rights reserved.
- * Use is subject to license terms.
- */
-
-#include <linux/module.h>
-
-#include "dtrace.h"
-#include "dtrace_dev.h"
-#include "fbt_impl.h"
-
-MODULE_AUTHOR("Kris Van Hees (kris.van.hees@oracle.com)");
-MODULE_DESCRIPTION("Function Boundary Tracing");
-MODULE_VERSION("v0.1");
-MODULE_LICENSE("CDDL");
-
-static const dtrace_pattr_t fbt_attr = {
-{ DTRACE_STABILITY_EVOLVING, DTRACE_STABILITY_EVOLVING, DTRACE_CLASS_COMMON },
-{ DTRACE_STABILITY_PRIVATE, DTRACE_STABILITY_PRIVATE, DTRACE_CLASS_UNKNOWN },
-{ DTRACE_STABILITY_PRIVATE, DTRACE_STABILITY_PRIVATE, DTRACE_CLASS_ISA },
-{ DTRACE_STABILITY_EVOLVING, DTRACE_STABILITY_EVOLVING, DTRACE_CLASS_COMMON },
-{ DTRACE_STABILITY_PRIVATE, DTRACE_STABILITY_PRIVATE, DTRACE_CLASS_ISA },
-};
-
-DT_PROVIDER_POPS(fbt)
-
-static dtrace_pops_t fbt_pops = {
- NULL,
- fbt_provide_module,
- fbt_enable,
- fbt_disable,
- NULL,
- NULL,
- NULL,
- NULL,
- NULL,
- fbt_destroy
-};
-
-DT_PROVIDER_MODULE(fbt, DTRACE_PRIV_KERNEL)
+++ /dev/null
-#ifndef _LOCKSTAT_H_
-#define _LOCKSTAT_H_
-
-extern int lockstat_dev_init(void);
-extern void lockstat_dev_exit(void);
-
-#endif /* _LOCKSTAT_H_ */
+++ /dev/null
-/*
- * FILE: lockstat_dev.c
- * DESCRIPTION: Lock Statistics: device file handling
- *
- * CDDL HEADER START
- *
- * The contents of this file are subject to the terms of the
- * Common Development and Distribution License (the "License").
- * You may not use this file except in compliance with the License.
- *
- * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
- * or http://www.opensolaris.org/os/licensing.
- * See the License for the specific language governing permissions
- * and limitations under the License.
- *
- * When distributing Covered Code, include this CDDL HEADER in each
- * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
- * If applicable, add the following below this CDDL HEADER, with the
- * fields enclosed by brackets "[]" replaced with your own identifying
- * information: Portions Copyright [yyyy] [name of copyright owner]
- *
- * CDDL HEADER END
- *
- * Copyright 2010, 2011 Oracle, Inc. All rights reserved.
- * Use is subject to license terms.
- */
-
-#include <linux/fs.h>
-#include <linux/miscdevice.h>
-
-#include "dtrace.h"
-#include "dtrace_dev.h"
-
-static long lockstat_ioctl(struct file *file,
- unsigned int cmd, unsigned long arg)
-{
- return -EAGAIN;
-}
-
-static int lockstat_open(struct inode *inode, struct file *file)
-{
- return -EAGAIN;
-}
-
-static int lockstat_close(struct inode *inode, struct file *file)
-{
- return 0;
-}
-
-static const struct file_operations lockstat_fops = {
- .owner = THIS_MODULE,
- .unlocked_ioctl = lockstat_ioctl,
- .open = lockstat_open,
- .release = lockstat_close,
-};
-
-static struct miscdevice lockstat_dev = {
- .minor = DT_DEV_LOCKSTAT_MINOR,
- .name = "dtrace",
- .nodename = "dtrace/provider/lockstat",
- .fops = &lockstat_fops,
-};
-
-int lockstat_dev_init(void)
-{
- int ret = 0;
-
- ret = misc_register(&lockstat_dev);
- if (ret)
- pr_err("%s: Can't register misc device %d\n",
- lockstat_dev.name, lockstat_dev.minor);
-
- return ret;
-}
-
-void lockstat_dev_exit(void)
-{
- misc_deregister(&lockstat_dev);
-}
+++ /dev/null
-/*
- * FILE: lockstat_mod.c
- * DESCRIPTION: Lock Statistics: module handling
- *
- * CDDL HEADER START
- *
- * The contents of this file are subject to the terms of the
- * Common Development and Distribution License (the "License").
- * You may not use this file except in compliance with the License.
- *
- * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
- * or http://www.opensolaris.org/os/licensing.
- * See the License for the specific language governing permissions
- * and limitations under the License.
- *
- * When distributing Covered Code, include this CDDL HEADER in each
- * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
- * If applicable, add the following below this CDDL HEADER, with the
- * fields enclosed by brackets "[]" replaced with your own identifying
- * information: Portions Copyright [yyyy] [name of copyright owner]
- *
- * CDDL HEADER END
- *
- * Copyright 2010, 2011 Oracle, Inc. All rights reserved.
- * Use is subject to license terms.
- */
-
-#include <linux/module.h>
-
-#include "dtrace.h"
-#include "dtrace_dev.h"
-#include "lockstat.h"
-
-MODULE_AUTHOR("Kris Van Hees (kris.van.hees@oracle.com)");
-MODULE_DESCRIPTION("Lock Statistics");
-MODULE_VERSION("v0.1");
-MODULE_LICENSE("CDDL");
-
-static const dtrace_pattr_t lockstat_attr = {
-};
-
-static dtrace_pops_t lockstat_pops = {
-};
-
-DT_PROVIDER_MODULE(lockstat, DTRACE_PRIV_KERNEL)
projects / users / jedix / linux-maple.git / commitdiff