+diff -Nurb linux-2.6.22-580/arch/i386/Kconfig linux-2.6.22-590/arch/i386/Kconfig
+--- linux-2.6.22-580/arch/i386/Kconfig 2008-02-27 14:59:40.000000000 -0500
++++ linux-2.6.22-590/arch/i386/Kconfig 2008-02-28 07:55:57.000000000 -0500
+@@ -1217,6 +1217,14 @@
+
+ source "arch/i386/oprofile/Kconfig"
+
++config CHOPSTIX
++ bool "Chopstix (PlanetLab)"
++ depends on MODULES && OPROFILE
++ help
++ Chopstix allows you to monitor various events by summarizing them
++ in lossy data structures and transferring these data structures
++ into user space. If in doubt, say "N".
++
+ config KPROBES
+ bool "Kprobes (EXPERIMENTAL)"
+ depends on KALLSYMS && EXPERIMENTAL && MODULES
diff -Nurb linux-2.6.22-580/drivers/oprofile/cpu_buffer.c linux-2.6.22-590/drivers/oprofile/cpu_buffer.c
--- linux-2.6.22-580/drivers/oprofile/cpu_buffer.c 2007-07-08 19:32:17.000000000 -0400
-+++ linux-2.6.22-590/drivers/oprofile/cpu_buffer.c 2008-02-27 13:53:47.000000000 -0500
++++ linux-2.6.22-590/drivers/oprofile/cpu_buffer.c 2008-02-28 07:40:16.000000000 -0500
@@ -21,6 +21,7 @@
#include <linux/oprofile.h>
#include <linux/vmalloc.h>
#include "event_buffer.h"
#include "cpu_buffer.h"
-@@ -143,6 +144,14 @@
+@@ -143,6 +144,17 @@
b->head_pos = 0;
}
++#ifdef CONFIG_CHOPSTIX
++
+struct event_spec {
+ unsigned int pc;
+ unsigned long dcookie;
+};
+
+extern void (*rec_event)(void *,unsigned int);
++#endif
+
static inline void
add_sample(struct oprofile_cpu_buffer * cpu_buf,
unsigned long pc, unsigned long event)
-@@ -151,6 +160,7 @@
+@@ -151,6 +163,7 @@
entry->eip = pc;
entry->event = event;
increment_head(cpu_buf);
}
static inline void
-@@ -237,12 +247,66 @@
+@@ -237,12 +250,75 @@
oprofile_end_trace(cpu_buf);
}
++#ifdef CONFIG_CHOPSTIX
++
+static int proc_pid_cmdline(struct task_struct *task, char * buffer)
+{
+ int res = 0;
+out:
+ return res;
+}
++#endif
+
+
+
unsigned long pc = profile_pc(regs);
+ int res=0;
++#ifdef CONFIG_CHOPSTIX
+ if (rec_event) {
+ struct event esig;
+ struct event_spec espec;
+ else {
oprofile_add_ext_sample(pc, regs, event, is_kernel);
+ }
++#else
++ oprofile_add_ext_sample(pc, regs, event, is_kernel);
++#endif
++
++
}
void oprofile_add_pc(unsigned long pc, int is_kernel, unsigned long event)
diff -Nurb linux-2.6.22-580/fs/exec.c linux-2.6.22-590/fs/exec.c
---- linux-2.6.22-580/fs/exec.c 2008-02-27 13:46:38.000000000 -0500
-+++ linux-2.6.22-590/fs/exec.c 2008-02-27 13:49:58.000000000 -0500
+--- linux-2.6.22-580/fs/exec.c 2008-02-27 14:59:40.000000000 -0500
++++ linux-2.6.22-590/fs/exec.c 2008-02-28 07:40:48.000000000 -0500
@@ -52,6 +52,7 @@
#include <linux/audit.h>
#include <linux/signalfd.h>
#include <asm/uaccess.h>
#include <asm/mmu_context.h>
-@@ -488,6 +489,10 @@
+@@ -488,6 +489,12 @@
if (!err) {
struct inode *inode = nd.dentry->d_inode;
++#ifdef CONFIG_CHOPSTIX
+ unsigned long cookie;
+ if (!nd.dentry->d_cookie)
+ get_dcookie(nd.dentry, nd.mnt, &cookie);
++#endif
+
file = ERR_PTR(-EACCES);
if (!(nd.mnt->mnt_flags & MNT_NOEXEC) &&
S_ISREG(inode->i_mode)) {
diff -Nurb linux-2.6.22-580/include/linux/arrays.h linux-2.6.22-590/include/linux/arrays.h
--- linux-2.6.22-580/include/linux/arrays.h 1969-12-31 19:00:00.000000000 -0500
-+++ linux-2.6.22-590/include/linux/arrays.h 2008-02-27 13:48:29.000000000 -0500
++++ linux-2.6.22-590/include/linux/arrays.h 2008-02-27 14:59:52.000000000 -0500
@@ -0,0 +1,35 @@
+#ifndef __ARRAYS_H__
+#define __ARRAYS_H__
+};
+#endif
diff -Nurb linux-2.6.22-580/include/linux/sched.h linux-2.6.22-590/include/linux/sched.h
---- linux-2.6.22-580/include/linux/sched.h 2008-02-27 13:46:40.000000000 -0500
-+++ linux-2.6.22-590/include/linux/sched.h 2008-02-27 13:48:29.000000000 -0500
-@@ -849,7 +849,7 @@
+--- linux-2.6.22-580/include/linux/sched.h 2008-02-27 14:59:41.000000000 -0500
++++ linux-2.6.22-590/include/linux/sched.h 2008-02-28 07:41:28.000000000 -0500
+@@ -849,7 +849,11 @@
unsigned int btrace_seq;
#endif
unsigned long sleep_avg;
-- unsigned long long timestamp, last_ran;
++#ifdef CONFIG_CHOPSTIX
+ unsigned long long timestamp, last_ran, last_interrupted, last_ran_j;
++#else
+ unsigned long long timestamp, last_ran;
++#endif
unsigned long long sched_time; /* sched_clock time spent running */
enum sleep_type sleep_type;
diff -Nurb linux-2.6.22-580/kernel/fork.c linux-2.6.22-590/kernel/fork.c
---- linux-2.6.22-580/kernel/fork.c 2008-02-27 13:46:40.000000000 -0500
-+++ linux-2.6.22-590/kernel/fork.c 2008-02-27 13:48:29.000000000 -0500
-@@ -197,6 +197,8 @@
+--- linux-2.6.22-580/kernel/fork.c 2008-02-27 14:59:41.000000000 -0500
++++ linux-2.6.22-590/kernel/fork.c 2008-02-28 07:42:09.000000000 -0500
+@@ -197,6 +197,11 @@
tsk->btrace_seq = 0;
#endif
tsk->splice_pipe = NULL;
+ //tsk->cmdline[0]='\0';
++#ifdef CONFIG_CHOPSTIX
+ tsk->last_interrupted = 0;
++ tsk->last_ran_j = 0;
++#endif
return tsk;
}
diff -Nurb linux-2.6.22-580/kernel/sched.c linux-2.6.22-590/kernel/sched.c
---- linux-2.6.22-580/kernel/sched.c 2008-02-27 13:46:40.000000000 -0500
-+++ linux-2.6.22-590/kernel/sched.c 2008-02-27 14:08:26.000000000 -0500
+--- linux-2.6.22-580/kernel/sched.c 2008-02-27 14:59:41.000000000 -0500
++++ linux-2.6.22-590/kernel/sched.c 2008-02-28 07:45:45.000000000 -0500
@@ -10,7 +10,7 @@
* 1998-11-19 Implemented schedule_timeout() and related stuff
* by Andrea Arcangeli
#include <linux/vs_sched.h>
#include <linux/vs_cvirt.h>
-@@ -3608,6 +3609,8 @@
+@@ -3608,6 +3609,7 @@
#endif
-+extern void (*rec_event)(void *,unsigned int);
+
static inline int interactive_sleep(enum sleep_type sleep_type)
{
return (sleep_type == SLEEP_INTERACTIVE ||
-@@ -3617,16 +3620,51 @@
+@@ -3617,16 +3619,54 @@
/*
* schedule() is the main scheduler function.
*/
+
++#ifdef CONFIG_CHOPSTIX
++extern void (*rec_event)(void *,unsigned int);
+struct event_spec {
+ unsigned long pc;
+ unsigned long dcookie;
+ return 0;
+}
+/* CHOPSTIX */
++#endif
+
asmlinkage void __sched schedule(void)
{
/*
* Test if we are atomic. Since do_exit() needs to call into
-@@ -3680,6 +3718,7 @@
+@@ -3680,6 +3720,7 @@
switch_count = &prev->nivcsw;
if (prev->state && !(preempt_count() & PREEMPT_ACTIVE)) {
switch_count = &prev->nvcsw;
if (unlikely((prev->state & TASK_INTERRUPTIBLE) &&
unlikely(signal_pending(prev))))
prev->state = TASK_RUNNING;
-@@ -3689,6 +3728,9 @@
+@@ -3689,6 +3730,11 @@
vx_uninterruptible_inc(prev);
}
deactivate_task(prev, rq);
++#ifdef CONFIG_CHOPSTIX
+ if (prev->state & TASK_INTERRUPTIBLE) {
+ prev->last_interrupted=jiffies;
+ }
++#endif
}
}
-@@ -3763,8 +3805,44 @@
+@@ -3763,8 +3809,45 @@
prev->sleep_avg -= run_time;
if ((long)prev->sleep_avg <= 0)
prev->sleep_avg = 0;
+
prev->timestamp = prev->last_ran = now;
++#ifdef CONFIG_CHOPSTIX
+ /* CHOPSTIX */
+
+ /* make sure the counters are loaded in the order we want them to show up*/
+ (*rec_event)(&event, diff);
+ }
-+
++#endif
sched_info_switch(prev, next);
if (likely(prev != next)) {
next->timestamp = next->last_ran = now;
-@@ -7275,3 +7353,7 @@
+@@ -7275,3 +7358,9 @@
}
#endif
+
++#ifdef CONFIG_CHOPSTIX
+void (*rec_event)(void *,unsigned int);
+EXPORT_SYMBOL(rec_event);
+EXPORT_SYMBOL(in_sched_functions);
-diff -Nurb linux-2.6.22-580/kernel/sched.c.rej linux-2.6.22-590/kernel/sched.c.rej
---- linux-2.6.22-580/kernel/sched.c.rej 1969-12-31 19:00:00.000000000 -0500
-+++ linux-2.6.22-590/kernel/sched.c.rej 2008-02-27 13:48:29.000000000 -0500
-@@ -0,0 +1,18 @@
-+***************
-+*** 56,61 ****
-+
-+ #include <asm/tlb.h>
-+ #include <asm/unistd.h>
-+
-+ /*
-+ * Scheduler clock - returns current time in nanosec units.
-+--- 56,64 ----
-+
-+ #include <asm/tlb.h>
-+ #include <asm/unistd.h>
-++ #include <linux/arrays.h>
-++
-++
-+
-+ /*
-+ * Scheduler clock - returns current time in nanosec units.
++#endif
git://git.onelab.eu / linux-2.6.git / commitdiff