samsung update 1

1 files changed, 224 insertions, 0 deletions

diff --git a/arch/arm/mach-exynos/sec_gaf.c b/arch/arm/mach-exynos/sec_gaf.c
new file mode 100644
index 00000000000..a8aa7f07e16
--- /dev/null
+++ b/arch/arm/mach-exynos/sec_gaf.c
@@ -0,0 +1,224 @@
+/*
+ *  sec_gaf.c
+ *
+ */
+
+#include <linux/module.h>
+#include <linux/types.h>
+#include <linux/sched.h>
+#include <linux/fs.h>
+#include <linux/mount.h>
+#include <asm/pgtable.h>
+
+static struct GAForensicINFO {
+	unsigned short ver;
+	unsigned int size;
+	unsigned short task_struct_struct_state;
+	unsigned short task_struct_struct_comm;
+	unsigned short task_struct_struct_tasks;
+	unsigned short task_struct_struct_pid;
+	unsigned short task_struct_struct_stack;
+	unsigned short task_struct_struct_mm;
+	unsigned short mm_struct_struct_start_data;
+	unsigned short mm_struct_struct_end_data;
+	unsigned short mm_struct_struct_start_brk;
+	unsigned short mm_struct_struct_brk;
+	unsigned short mm_struct_struct_start_stack;
+	unsigned short mm_struct_struct_arg_start;
+	unsigned short mm_struct_struct_arg_end;
+	unsigned short mm_struct_struct_pgd;
+	unsigned short mm_struct_struct_mmap;
+	unsigned short vm_area_struct_struct_vm_start;
+	unsigned short vm_area_struct_struct_vm_end;
+	unsigned short vm_area_struct_struct_vm_next;
+	unsigned short vm_area_struct_struct_vm_file;
+	unsigned short thread_info_struct_cpu_context;
+	unsigned short cpu_context_save_struct_sp;
+	unsigned short file_struct_f_path;
+	unsigned short path_struct_mnt;
+	unsigned short path_struct_dentry;
+	unsigned short dentry_struct_d_parent;
+	unsigned short dentry_struct_d_name;
+	unsigned short qstr_struct_name;
+	unsigned short vfsmount_struct_mnt_mountpoint;
+	unsigned short vfsmount_struct_mnt_root;
+	unsigned short vfsmount_struct_mnt_parent;
+	unsigned int pgdir_shift;
+	unsigned int ptrs_per_pte;
+	unsigned int phys_offset;
+	unsigned int page_offset;
+	unsigned int page_shift;
+	unsigned int page_size;
+	unsigned short task_struct_struct_thread_group;
+	unsigned short task_struct_struct_utime;
+	unsigned short task_struct_struct_stime;
+	unsigned short list_head_struct_next;
+	unsigned short list_head_struct_prev;
+	unsigned short rq_struct_curr;
+
+	unsigned short thread_info_struct_cpu;
+
+	unsigned short task_struct_struct_prio;
+	unsigned short task_struct_struct_static_prio;
+	unsigned short task_struct_struct_normal_prio;
+	unsigned short task_struct_struct_rt_priority;
+
+	unsigned short task_struct_struct_se;
+
+	unsigned short sched_entity_struct_exec_start;
+	unsigned short sched_entity_struct_sum_exec_runtime;
+	unsigned short sched_entity_struct_prev_sum_exec_runtime;
+
+	unsigned short task_struct_struct_sched_info;
+
+	unsigned short sched_info_struct_pcount;
+	unsigned short sched_info_struct_run_delay;
+	unsigned short sched_info_struct_last_arrival;
+	unsigned short sched_info_struct_last_queued;
+
+	unsigned short task_struct_struct_blocked_on;
+
+	unsigned short mutex_waiter_struct_list;
+	unsigned short mutex_waiter_struct_task;
+
+	unsigned short sched_entity_struct_cfs_rq_struct;
+	unsigned short cfs_rq_struct_rq_struct;
+	unsigned short gaf_fp;
+	unsigned short  GAFINFOCheckSum;
+} GAFINFO = {
+	.ver = 0x0300, /* by dh3s.choi 2010 12 14 */
+	.size = sizeof(GAFINFO),
+	.task_struct_struct_state = offsetof(struct task_struct, state),
+	.task_struct_struct_comm = offsetof(struct task_struct, comm),
+	.task_struct_struct_tasks = offsetof(struct task_struct, tasks),
+	.task_struct_struct_pid = offsetof(struct task_struct, pid),
+	.task_struct_struct_stack = offsetof(struct task_struct, stack),
+	.task_struct_struct_mm = offsetof(struct task_struct, mm),
+	.mm_struct_struct_start_data = offsetof(struct mm_struct, start_data),
+	.mm_struct_struct_end_data = offsetof(struct mm_struct, end_data),
+	.mm_struct_struct_start_brk = offsetof(struct mm_struct, start_brk),
+	.mm_struct_struct_brk = offsetof(struct mm_struct, brk),
+	.mm_struct_struct_start_stack = offsetof(struct mm_struct, start_stack),
+	.mm_struct_struct_arg_start = offsetof(struct mm_struct, arg_start),
+	.mm_struct_struct_arg_end = offsetof(struct mm_struct, arg_end),
+	.mm_struct_struct_pgd = offsetof(struct mm_struct, pgd),
+	.mm_struct_struct_mmap = offsetof(struct mm_struct, mmap),
+	.vm_area_struct_struct_vm_start = offsetof(struct vm_area_struct, vm_start),
+	.vm_area_struct_struct_vm_end = offsetof(struct vm_area_struct, vm_end),
+	.vm_area_struct_struct_vm_next = offsetof(struct vm_area_struct, vm_next),
+	.vm_area_struct_struct_vm_file = offsetof(struct vm_area_struct, vm_file),
+	.thread_info_struct_cpu_context = offsetof(struct thread_info, cpu_context),
+	.cpu_context_save_struct_sp = offsetof(struct cpu_context_save, sp),
+	.file_struct_f_path = offsetof(struct file, f_path),
+	.path_struct_mnt = offsetof(struct path, mnt),
+	.path_struct_dentry = offsetof(struct path, dentry),
+	.dentry_struct_d_parent = offsetof(struct dentry, d_parent),
+	.dentry_struct_d_name = offsetof(struct dentry, d_name),
+	.qstr_struct_name = offsetof(struct qstr, name),
+	.vfsmount_struct_mnt_mountpoint = offsetof(struct vfsmount, mnt_mountpoint),
+	.vfsmount_struct_mnt_root = offsetof(struct vfsmount, mnt_root),
+	.vfsmount_struct_mnt_parent = offsetof(struct vfsmount, mnt_parent),
+	.pgdir_shift = PGDIR_SHIFT,
+	.ptrs_per_pte = PTRS_PER_PTE,
+	/* .phys_offset = PHYS_OFFSET, */
+	.page_offset = PAGE_OFFSET,
+	.page_shift = PAGE_SHIFT,
+	.page_size = PAGE_SIZE,
+	.task_struct_struct_thread_group  = offsetof(struct task_struct, thread_group),
+	.task_struct_struct_utime =  offsetof(struct task_struct, utime),
+	.task_struct_struct_stime =  offsetof(struct task_struct, stime),
+	.list_head_struct_next = offsetof(struct list_head, next),
+	.list_head_struct_prev = offsetof(struct list_head, prev),
+
+	.rq_struct_curr = 0,
+
+	.thread_info_struct_cpu = offsetof(struct thread_info, cpu),
+
+	.task_struct_struct_prio = offsetof(struct task_struct, prio),
+	.task_struct_struct_static_prio = offsetof(struct task_struct, static_prio),
+	.task_struct_struct_normal_prio = offsetof(struct task_struct, normal_prio),
+	.task_struct_struct_rt_priority = offsetof(struct task_struct, rt_priority),
+
+	.task_struct_struct_se = offsetof(struct task_struct, se),
+
+	.sched_entity_struct_exec_start = offsetof(struct sched_entity, exec_start),
+	.sched_entity_struct_sum_exec_runtime = offsetof(struct sched_entity, sum_exec_runtime),
+	.sched_entity_struct_prev_sum_exec_runtime = offsetof(struct sched_entity, prev_sum_exec_runtime),
+
+#if defined(CONFIG_SCHEDSTATS) || defined(CONFIG_TASK_DELAY_ACCT)
+	.task_struct_struct_sched_info = offsetof(struct task_struct, sched_info),
+	.sched_info_struct_pcount = offsetof(struct sched_info, pcount),
+	.sched_info_struct_run_delay = offsetof(struct sched_info, run_delay),
+	.sched_info_struct_last_arrival = offsetof(struct sched_info, last_arrival),
+	.sched_info_struct_last_queued = offsetof(struct sched_info, last_queued),
+#else
+	.task_struct_struct_sched_info = 0x1223,
+	.sched_info_struct_pcount = 0x1224,
+	.sched_info_struct_run_delay = 0x1225,
+	.sched_info_struct_last_arrival = 0x1226,
+	.sched_info_struct_last_queued = 0x1227,
+#endif
+
+#ifdef CONFIG_DEBUG_MUTEXES
+	.task_struct_struct_blocked_on = offsetof(struct task_struct, blocked_on),
+	.mutex_waiter_struct_list = offsetof(struct mutex_waiter, list),
+	.mutex_waiter_struct_task = offsetof(struct mutex_waiter, task),
+#else
+	.task_struct_struct_blocked_on = 0x1228,
+	.mutex_waiter_struct_list = 0x1229,
+	.mutex_waiter_struct_task = 0x122a,
+#endif
+
+#ifdef CONFIG_FAIR_GROUP_SCHED
+	.sched_entity_struct_cfs_rq_struct = offsetof(struct sched_entity, cfs_rq),
+#else
+	.sched_entity_struct_cfs_rq_struct = 0x1223,
+#endif
+
+	.cfs_rq_struct_rq_struct = 0,
+
+#ifdef CONFIG_FRAME_POINTER
+	.gaf_fp = 1,
+#else
+	.gaf_fp = 0,
+#endif
+
+	.GAFINFOCheckSum = 0
+};
+
+void sec_gaf_supply_rqinfo(unsigned short curr_offset, unsigned short rq_offset)
+{
+	unsigned short *checksum = &(GAFINFO.GAFINFOCheckSum);
+	unsigned char *memory = (unsigned char *)&GAFINFO;
+	unsigned char address;
+	/*
+	 *  Add GAForensic init for preventing symbol removal for optimization.
+	 */
+	GAFINFO.phys_offset = PHYS_OFFSET;
+	GAFINFO.rq_struct_curr = curr_offset;
+
+#ifdef CONFIG_FAIR_GROUP_SCHED
+	GAFINFO.cfs_rq_struct_rq_struct = rq_offset;
+#else
+	GAFINFO.cfs_rq_struct_rq_struct = 0x1224;
+#endif
+
+	for (*checksum = 0, address = 0;
+	     address < (sizeof(GAFINFO) - sizeof(GAFINFO.GAFINFOCheckSum));
+	     address++) {
+		if ((*checksum) & 0x8000)
+			(*checksum) =
+			    (((*checksum) << 1) | 1) ^ memory[address];
+		else
+			(*checksum) = ((*checksum) << 1) ^ memory[address];
+	}
+}
+EXPORT_SYMBOL(sec_gaf_supply_rqinfo);
+
+static int __init sec_gaf_init(void)
+{
+	GAFINFO.phys_offset = PHYS_OFFSET;
+	return 0;
+}
+
+core_initcall(sec_gaf_init);