[Fault-injection-developer] RFC: fi_dbp infrastructure.

[Wang, S. <sta...@in...>]

Hi, folks
Here is fi_dbp infrastructure:

# This is a BitKeeper generated patch for the following project:
# Project Name: Linux kernel tree
# This patch format is intended for GNU patch command version 2.5 or higher.
# This patch includes the following deltas:
#	           ChangeSet	1.961   -> 1.977  
#	   arch/i386/Kconfig	1.28    -> 1.30   
#	     kernel/module.c	1.32    -> 1.35   
# The following is the BitKeeper ChangeSet Log
# --------------------------------------------
# 02/12/27	st...@ma...	1.962
# Add FI_DBP infrastructure
# --------------------------------------------
# 02/12/27	st...@ma...	1.963
# Split fi_find_module into fi_get_moudule and fi_put_module
# --------------------------------------------
# 02/12/27	st...@ma...	1.965
# fix warning.
# --------------------------------------------
diff -Nru a/arch/i386/Kconfig b/arch/i386/Kconfig
--- a/arch/i386/Kconfig	Tue Dec 31 17:43:41 2002
+++ b/arch/i386/Kconfig	Tue Dec 31 17:43:41 2002
@@ -1567,6 +1567,22 @@
 
           If in doubt, say N.
 
+config FI_DBP
+	tristate "Fault Injection Dynamic Binary Patch (EXPERIMENTAL)"
+	depends on FI
+	help
+	  This component adds the ability for Fault Injection to intercept
+	  int3's handler. When combined with the core fault injection 
+	  infrastructure and a user space tool chain, it will be possible
+	  to create test cases that inject fault into normal PIO access.
+
+          This driver is also available as a module ( = code which can be
+          inserted in and removed from the running kernel whenever you
want).
+          The module will be called fi_dbp.o.  If you want to compile it as
+          a module, say M here and read <file:Documentation/modules.txt>.
+
+          If in doubt, say N.
+
 config FI_IRQ
 	tristate "Fault Injection Irq Interceptor (EXPERIMENTAL)"
 	depends on KIRQ
diff -Nru a/kernel/module.c b/kernel/module.c
--- a/kernel/module.c	Tue Dec 31 17:43:41 2002
+++ b/kernel/module.c	Tue Dec 31 17:43:41 2002
@@ -1412,3 +1412,19 @@
 /* Obsolete lvalue for broken code which asks about usage */
 int module_dummy_usage = 1;
 EXPORT_SYMBOL(module_dummy_usage);
+
+#if defined(CONFIG_FI_DBP) || defined(CONFIG_FI_DBP_MODULE) 
+struct module *fi_get_module(const char *name)
+{
+	down(&module_mutex);
+	return find_module(name);
+}
+void fi_put_module(void)
+{
+	up(&module_mutex);
+}
+EXPORT_SYMBOL_GPL(fi_get_module);
+EXPORT_SYMBOL_GPL(fi_put_module);
+#endif

Your Sincerely,
Stanley Wang 

SW Engineer, Intel Corporation.
Intel China Software Lab. 
Tel: 021-52574545 ext. 1171 
iNet: 8-752-1171 
 
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