[PATCH 16/39] NLKD - core adjustments

["Jan Beulich" <JBeulich@novell.com>]

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The core NLKD adjustments to pre-existing code.

Signed-Off-By: Jan Beulich <jbeulich@novell.com>

(actual patch attached)


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The core NLKD adjustments to pre-existing code.

Signed-Off-By: Jan Beulich <jbeulich@novell.com>

Index: 2.6.14-nlkd/include/asm-generic/bug.h
===================================================================
--- 2.6.14-nlkd.orig/include/asm-generic/bug.h	2005-11-09 10:40:16.000000000 +0100
+++ 2.6.14-nlkd/include/asm-generic/bug.h	2005-11-04 16:19:34.000000000 +0100
@@ -5,6 +5,44 @@
 #include <linux/config.h>
 
 #ifdef CONFIG_BUG
+
+# ifdef CONFIG_NLKD
+
+#  ifndef _LINUX_NLKD_H
+#   define _LINUX_NLKD_H
+#   include <linux/nlkd.h>
+#   undef _LINUX_NLKD_H
+#  endif
+
+#  ifdef HAVE_ARCH_BUG
+#   undef BUG
+#  else
+#   define HAVE_ARCH_BUG
+#  endif
+#  define BUG() nlkdAssert("BUG", __FILE__, __PRETTY_FUNCTION__, __LINE__)
+
+#  ifdef HAVE_ARCH_BUG_ON
+#   undef BUG_ON
+#  else
+#   define HAVE_ARCH_BUG_ON
+#  endif
+#  define BUG_ON(condition) (unlikely(condition) \
+		? nlkdAssert("!(" #condition ")", __FILE__, __PRETTY_FUNCTION__, __LINE__) \
+		: (void)0)
+
+#  ifdef HAVE_ARCH_WARN_ON
+#   undef WARN_ON
+#  else
+#   define HAVE_ARCH_WARN_ON
+#  endif
+#  define WARN_ON(condition) (unlikely(condition) \
+		? printk("Badness in %s at %s:%d\n", __PRETTY_FUNCTION__, __FILE__, __LINE__), \
+		  dump_stack(), \
+		  nlkdDebugEvent(DEBUG_EVENT_MESSAGE, #condition) \
+		: (void)0)
+
+# endif /* CONFIG_NLKD */
+
 #ifndef HAVE_ARCH_BUG
 #define BUG() do { \
 	printk("kernel BUG at %s:%d!\n", __FILE__, __LINE__); \
Index: 2.6.14-nlkd/include/linux/sched.h
===================================================================
--- 2.6.14-nlkd.orig/include/linux/sched.h	2005-11-04 16:19:34.000000000 +0100
+++ 2.6.14-nlkd/include/linux/sched.h	2005-11-04 16:19:34.000000000 +0100
@@ -298,6 +298,10 @@ struct mm_struct {
 	/* Architecture-specific MM context */
 	mm_context_t context;
 
+#ifdef CONFIG_NLKD
+	struct cdeBPStruct_s *bpList;
+#endif
+
 	/* Token based thrashing protection. */
 	unsigned long swap_token_time;
 	char recent_pagein;
@@ -681,6 +685,10 @@ struct task_struct {
 
 	struct mm_struct *mm, *active_mm;
 
+#ifdef CONFIG_NLKD
+	struct cdeBPStruct_s *bpList;
+#endif
+
 /* task state */
 	struct linux_binfmt *binfmt;
 	long exit_state;
@@ -689,6 +697,9 @@ struct task_struct {
 	/* ??? */
 	unsigned long personality;
 	unsigned did_exec:1;
+#ifdef CONFIG_NLKD
+	unsigned kstep:1;         /* kernel-debugger single stepping this task */
+#endif
 	pid_t pid;
 	pid_t tgid;
 	/* 
Index: 2.6.14-nlkd/init/Kconfig
===================================================================
--- 2.6.14-nlkd.orig/init/Kconfig	2005-11-07 10:51:19.000000000 +0100
+++ 2.6.14-nlkd/init/Kconfig	2005-11-07 10:51:19.000000000 +0100
@@ -275,7 +275,7 @@ config KALLSYMS
 config KALLSYMS_TRADITIONAL
 	bool "Traditional kallsyms symbol table format"
 	depends on KALLSYMS
-	default !MODULES
+	default !MODULES && !NLKD
 	help
 	  Say N here if you want the kernel symbol table to be consistent with
 	  that loadable modules use (i.e. the ELF symbol table extracted from
Index: 2.6.14-nlkd/init/main.c
===================================================================
--- 2.6.14-nlkd.orig/init/main.c	2005-11-07 10:53:53.000000000 +0100
+++ 2.6.14-nlkd/init/main.c	2005-11-07 10:53:53.000000000 +0100
@@ -47,6 +47,7 @@
 #include <linux/rmap.h>
 #include <linux/mempolicy.h>
 #include <linux/key.h>
+#include <linux/nlkd.h>
 #include <net/sock.h>
 
 #include <asm/io.h>
@@ -482,6 +483,7 @@ asmlinkage void __init start_kernel(void
 	sort_main_extable();
 	trap_init();
 	kallsyms_early_init();
+	nlkd_init();
 	rcu_init();
 	init_IRQ();
 	pidhash_init();
@@ -709,6 +711,7 @@ static int init(void * unused)
 	 * we're essentially up and running. Get rid of the
 	 * initmem segments and start the user-mode stuff..
 	 */
+	nlkd_init_done();
 	kallsyms_init_done();
 	free_initmem();
 	unlock_kernel();
Index: 2.6.14-nlkd/kernel/exit.c
===================================================================
--- 2.6.14-nlkd.orig/kernel/exit.c	2005-11-09 10:40:16.000000000 +0100
+++ 2.6.14-nlkd/kernel/exit.c	2005-11-04 16:19:34.000000000 +0100
@@ -28,6 +28,7 @@
 #include <linux/cpuset.h>
 #include <linux/syscalls.h>
 #include <linux/signal.h>
+#include <linux/nlkd.h>
 
 #include <asm/uaccess.h>
 #include <asm/unistd.h>
@@ -794,6 +795,7 @@ fastcall NORET_TYPE void do_exit(long co
 	struct task_struct *tsk = current;
 	int group_dead;
 
+	bp_list_clear(tsk);
 	profile_task_exit(tsk);
 
 	WARN_ON(atomic_read(&tsk->fs_excl));
Index: 2.6.14-nlkd/kernel/fork.c
===================================================================
--- 2.6.14-nlkd.orig/kernel/fork.c	2005-11-04 16:19:34.000000000 +0100
+++ 2.6.14-nlkd/kernel/fork.c	2005-11-04 16:19:34.000000000 +0100
@@ -42,6 +42,7 @@
 #include <linux/profile.h>
 #include <linux/rmap.h>
 #include <linux/acct.h>
+#include <linux/nlkd.h>
 
 #include <asm/pgtable.h>
 #include <asm/pgalloc.h>
@@ -337,6 +338,9 @@ static struct mm_struct * mm_init(struct
 
 	if (likely(!mm_alloc_pgd(mm))) {
 		mm->def_flags = 0;
+#if defined(CONFIG_CDE) || defined(CONFIG_CDE_MODULE)
+		mm->bpList = NULL;
+#endif
 		return mm;
 	}
 	free_mm(mm);
@@ -377,6 +381,7 @@ void fastcall __mmdrop(struct mm_struct 
 void mmput(struct mm_struct *mm)
 {
 	if (atomic_dec_and_test(&mm->mm_users)) {
+		bp_list_clear(mm);
 		exit_aio(mm);
 		exit_mmap(mm);
 		if (!list_empty(&mm->mmlist)) {
Index: 2.6.14-nlkd/kernel/power/swsusp.c
===================================================================
--- 2.6.14-nlkd.orig/kernel/power/swsusp.c	2005-11-09 10:40:16.000000000 +0100
+++ 2.6.14-nlkd/kernel/power/swsusp.c	2005-11-04 16:19:34.000000000 +0100
@@ -67,6 +67,7 @@
 #include <linux/highmem.h>
 #include <linux/bio.h>
 #include <linux/mount.h>
+#include <linux/nlkd.h>
 
 #include <asm/uaccess.h>
 #include <asm/mmu_context.h>
@@ -1044,6 +1045,7 @@ int swsusp_suspend(void)
 	/* Restore control flow magically appears here */
 	restore_processor_state();
 	BUG_ON (nr_copy_pages_check != nr_copy_pages);
+	bp_load();
 	restore_highmem();
 	device_power_up();
 	local_irq_enable();
@@ -1064,6 +1066,7 @@ int swsusp_resume(void)
          */
 	BUG_ON(!error);
 	restore_processor_state();
+	bp_load();
 	restore_highmem();
 	touch_softlockup_watchdog();
 	device_power_up();
Index: 2.6.14-nlkd/kernel/sched.c
===================================================================
--- 2.6.14-nlkd.orig/kernel/sched.c	2005-11-09 10:40:16.000000000 +0100
+++ 2.6.14-nlkd/kernel/sched.c	2005-11-04 16:19:34.000000000 +0100
@@ -47,6 +47,7 @@
 #include <linux/syscalls.h>
 #include <linux/times.h>
 #include <linux/acct.h>
+#include <linux/nlkd.h>
 #include <asm/tlb.h>
 
 #include <asm/unistd.h>
@@ -1568,12 +1569,17 @@ task_t * context_switch(runqueue_t *rq, 
 	struct mm_struct *mm = next->mm;
 	struct mm_struct *oldmm = prev->active_mm;
 
+	bp_list_disable(1, prev);
+
 	if (unlikely(!mm)) {
 		next->active_mm = oldmm;
 		atomic_inc(&oldmm->mm_count);
 		enter_lazy_tlb(oldmm, next);
-	} else
+	} else {
+		bp_list_disable(oldmm && oldmm != mm, oldmm);
 		switch_mm(oldmm, mm, next);
+		bp_list_enable(oldmm != mm, mm);
+	}
 
 	if (unlikely(!prev->mm)) {
 		prev->active_mm = NULL;
@@ -1584,6 +1590,8 @@ task_t * context_switch(runqueue_t *rq, 
 	/* Here we just switch the register state and the stack. */
 	switch_to(prev, next, prev);
 
+	bp_list_enable(1, current);
+
 	return prev;
 }