skas-mm-debug


Signed-off-by: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it>
Index: linux-2.6.14/mm/Makefile
===================================================================
--- linux-2.6.14.orig/mm/Makefile	2005-10-29 05:50:00.000000000 +0200
+++ linux-2.6.14/mm/Makefile	2005-10-29 05:50:34.000000000 +0200
@@ -22,3 +22,7 @@
 obj-$(CONFIG_FS_XIP) += filemap_xip.o
 
 obj-$(CONFIG_PROC_MM)	+= proc_mm.o
+
+ifeq ($(CONFIG_PROC_MM),y)
+obj-m			+= proc_mm-mod.o
+endif
Index: linux-2.6.14/mm/proc_mm-mod.c
===================================================================
--- /dev/null	1970-01-01 00:00:00.000000000 +0000
+++ linux-2.6.14/mm/proc_mm-mod.c	2005-10-29 05:50:34.000000000 +0200
@@ -0,0 +1,51 @@
+#include <linux/config.h>
+#include <linux/kernel.h>
+#include <linux/proc_mm.h>
+#include <linux/ptrace.h>
+#include <linux/module.h>
+
+#ifdef CONFIG_64BIT
+#define PRINT_OFFSET(type, member) \
+	printk(KERN_DEBUG "struct " #type "32->" #member " \t: %ld\n", (long) offsetof(struct type ## 32, member))
+#else
+#define PRINT_OFFSET(type, member) \
+	printk(KERN_DEBUG "struct " #type "->" #member " \t: %ld\n", (long) offsetof(struct type, member))
+#endif
+
+static int debug_printoffsets(void)
+{
+	printk(KERN_DEBUG "Skas core structures layout BEGIN:\n");
+	PRINT_OFFSET(mm_mmap, addr);
+	PRINT_OFFSET(mm_mmap, len);
+	PRINT_OFFSET(mm_mmap, prot);
+	PRINT_OFFSET(mm_mmap, flags);
+	PRINT_OFFSET(mm_mmap, fd);
+	PRINT_OFFSET(mm_mmap, offset);
+
+	PRINT_OFFSET(mm_munmap, addr);
+	PRINT_OFFSET(mm_munmap, len);
+
+	PRINT_OFFSET(mm_mprotect, addr);
+	PRINT_OFFSET(mm_mprotect, len);
+	PRINT_OFFSET(mm_mprotect, prot);
+
+	PRINT_OFFSET(proc_mm_op, op);
+	PRINT_OFFSET(proc_mm_op, u);
+	PRINT_OFFSET(proc_mm_op, u.mmap);
+	PRINT_OFFSET(proc_mm_op, u.munmap);
+	PRINT_OFFSET(proc_mm_op, u.mprotect);
+	PRINT_OFFSET(proc_mm_op, u.copy_segments);
+
+	PRINT_OFFSET(ptrace_faultinfo, is_write);
+	PRINT_OFFSET(ptrace_faultinfo, addr);
+
+	PRINT_OFFSET(ptrace_ldt, func);
+	PRINT_OFFSET(ptrace_ldt, ptr);
+	PRINT_OFFSET(ptrace_ldt, bytecount);
+	printk(KERN_DEBUG "Skas core structures layout END.\n");
+
+	return 0;
+}
+#undef PRINT_OFFSET
+
+module_init(debug_printoffsets);