LTTng : Linux Trace Toolkit Next Generation 0.5.95, kernel 2.6.17

@@ -22,6 +22,7 @@ #include <linux/random.h>
 #include <linux/sched.h>
 #include <linux/seq_file.h>
 #include <linux/kallsyms.h>
+#include <linux/ltt/ltt-facility-kernel.h>
 
 #include <asm/atomic.h>
 #include <asm/system.h>

@@ -59,8 +60,12 @@ asmlinkage unsigned int do_IRQ(unsigned 
 	irq_enter();
 
 	__DO_IRQ_SMTC_HOOK();
+	trace_kernel_irq_entry(irq, !(user_mode(regs)));
+
 	__do_IRQ(irq, regs);
 
+	trace_kernel_irq_exit();
+
 	irq_exit();
 
 	return 1;

index 199a06e..58bddec 100644
@@ -26,6 +26,7 @@ #include <linux/a.out.h>
 #include <linux/init.h>
 #include <linux/completion.h>
 #include <linux/kallsyms.h>
+#include <linux/ltt/ltt-facility-process.h>
 
 #include <asm/abi.h>
 #include <asm/bootinfo.h>

@@ -256,6 +257,7 @@ ATTRIB_NORET void kernel_thread_helper(v
 long kernel_thread(int (*fn)(void *), void *arg, unsigned long flags)
 {
 	struct pt_regs regs;
+	long pid;
 
 	memset(&regs, 0, sizeof(regs));
 

@@ -271,7 +273,13 @@ #else
 #endif
 
 	/* Ok, create the new process.. */
-	return do_fork(flags | CLONE_VM | CLONE_UNTRACED, 0, &regs, 0, NULL, NULL);
+	pid = do_fork(flags | CLONE_VM | CLONE_UNTRACED,
+			0, &regs, 0, NULL, NULL);
+#ifdef CONFIG_LTT
+	if(pid >= 0)
+		trace_process_kernel_thread(pid, fn);
+#endif //CONFIG_LTT
+	return pid;
 }
 
 static struct mips_frame_info {

159 lines not on this page · raw message

index 5b5a373..857d793 100644
@@ -72,6 +72,7 @@
  *       A store crossing a page boundary might be executed only partially.
  *       Undo the partial store in this case.
  */
+#include <linux/ltt/ltt-facility-kernel.h>
 #include <linux/config.h>
 #include <linux/mm.h>
 #include <linux/module.h>

@@ -497,14 +498,18 @@ asmlinkage void do_ade(struct pt_regs *r
 	unsigned int __user *pc;
 	mm_segment_t seg;
 
+	trace_kernel_trap_entry(CAUSE_EXCCODE(regs->cp0_cause), (void*)regs->cp0_epc);
+
 	/*
 	 * Address errors may be deliberately induced by the FPU emulator to
 	 * retake control of the CPU after executing the instruction in the
 	 * delay slot of an emulated branch.
 	 */
 	/* Terminate if exception was recognized as a delay slot return */
-	if (do_dsemulret(regs))
+	if (do_dsemulret(regs)) {
+		trace_kernel_trap_exit();
 		return;
+	}
 
 	/* Otherwise handle as normal */
 

@@ -538,6 +543,8 @@ asmlinkage void do_ade(struct pt_regs *r
 	}
 	set_fs(seg);
 
+	trace_kernel_trap_exit();
+
 	return;
 
 sigbus:

@@ -547,4 +554,6 @@ sigbus:
 	/*
 	 * XXX On return from the signal handler we should advance the epc
 	 */
+
+	trace_kernel_trap_exit();
 }

index e3a6172..24f4333 100644
@@ -7,6 +7,7 @@
  * Copyright (C) 1999, 2000 Silicon Graphics, Inc.
  * Copyright (C) 2001 MIPS Technologies, Inc.
  */
+#include <linux/ltt/ltt-facility-ipc.h>
 #include <linux/config.h>
 #include <linux/a.out.h>
 #include <linux/capability.h>

@@ -308,6 +309,8 @@ asmlinkage int sys_ipc (uint call, int f
 
 	version = call >> 16; /* hack for backward compatibility */
 	call &= 0xffff;
+	
+	trace_ipc_call(call, first);
 
 	switch (call) {
 	case SEMOP:

index 5e8a18a..476f7ff 100644
@@ -5,6 +5,7 @@
  *
  * Copyright (C) 1995 - 2000 by Ralf Baechle
  */
+#include <linux/ltt/ltt-facility-kernel.h>
 #include <linux/signal.h>
 #include <linux/sched.h>
 #include <linux/interrupt.h>

@@ -61,6 +62,8 @@ #endif
 	if (unlikely(address >= VMALLOC_START && address <= VMALLOC_END))
 		goto vmalloc_fault;
 
+	trace_kernel_trap_entry(CAUSE_EXCCODE(regs->cp0_cause), (void*)regs->cp0_epc);
+
 	/*
 	 * If we're in an interrupt or have no user
 	 * context, we must not take the fault..

@@ -115,6 +118,7 @@ survive:
 	}
 
 	up_read(&mm->mmap_sem);
+	trace_kernel_trap_exit();
 	return;
 
 /*

@@ -143,6 +147,7 @@ #endif
 		/* info.si_code has been set above */
 		info.si_addr = (void __user *) address;
 		force_sig_info(SIGSEGV, &info, tsk);
+		trace_kernel_trap_exit();
 		return;
 	}
 

@@ -208,6 +213,7 @@ #endif
 	info.si_addr = (void __user *) address;
 	force_sig_info(SIGBUS, &info, tsk);
 
+	trace_kernel_trap_exit();
 	return;
 vmalloc_fault:
 	{

@@ -245,6 +251,9 @@ vmalloc_fault:
 		pte_k = pte_offset_kernel(pmd_k, address);
 		if (!pte_present(*pte_k))
 			goto no_context;
+		trace_kernel_trap_entry(CAUSE_EXCCODE(regs->cp0_cause), (void*)regs->cp0_epc);
+		trace_kernel_trap_exit();
 		return;
 	}
+	trace_kernel_trap_exit();
 }