lrdp-v2: fcmdump: Add FCM dump extraction support

Adding parser support to extract fcm.bin from dump

Change-Id: If82b313c596d818c186890a1968d12bfe1b2d4ab

linux-ramdump-parser-v2/debug_image_v2.py

@@ -31,6 +31,7 @@ from cachedumplib import lookup_cache_type
 from tlbdumplib import lookup_tlb_type
 from vsens import VsensData
 from sysregs import SysRegDump
+from fcmdump import FCM_Dump
 
 MEMDUMPV2_MAGIC = 0x42445953
 MAX_NUM_ENTRIES = 0x150
@@ -55,6 +56,7 @@ class client(object):
     MSM_DUMP_DATA_LOG_BUF_FIRST_IDX = 0x111
     MSM_DUMP_DATA_L2_TLB = 0x120
     MSM_DUMP_DATA_SCANDUMP = 0xEB
+    MSM_DUMP_DATA_FCMDUMP = 0xEE
     MSM_DUMP_DATA_SCANDUMP_PER_CPU = 0x130
     MSM_DUMP_DATA_LLC_CACHE = 0x140
     MSM_DUMP_DATA_MAX = MAX_NUM_ENTRIES
@@ -63,6 +65,7 @@ class client(object):
 client_types = [
     ('MSM_DUMP_DATA_SCANDUMP', 'parse_scandump'),
     ('MSM_DUMP_DATA_SCANDUMP_PER_CPU', 'parse_scandump'),
+    ('MSM_DUMP_DATA_FCMDUMP', 'parse_fcmdump'),
     ('MSM_DUMP_DATA_CPU_CTX', 'parse_cpu_ctx'),
     ('MSM_DUMP_DATA_L1_INST_TLB', 'parse_tlb_common'),
     ('MSM_DUMP_DATA_L1_DATA_TLB', 'parse_tlb_common'),
@@ -162,6 +165,18 @@ class DebugImage_v2():
             sv2.dump_all_regs(ram_dump)
         return
 
+    def parse_fcmdump(self, version, start, end, client_id, ram_dump):
+        client_name = self.dump_data_id_lookup_table[client_id]
+
+        print_out_str(
+                'Parsing {0} context start {1:x} end {2:x}'.format(client_name, start, end))
+
+        fcmdumps = FCM_Dump(start, end)
+        if fcmdumps.dump_fcm_img(ram_dump) is False:
+            print_out_str('!!! Could not dump FCM')
+
+        return
+
     def parse_cpu_ctx(self, version, start, end, client_id, ram_dump):
         core = client_id - client.MSM_DUMP_DATA_CPU_CTX
 
@@ -614,6 +629,9 @@ class DebugImage_v2():
         for i in range(0, 4):
                 self.dump_data_id_lookup_table[
                     client.MSM_DUMP_DATA_LLC_CACHE + i] = 'MSM_DUMP_DATA_LLC_CACHE'
+
+        self.dump_data_id_lookup_table[
+            client.MSM_DUMP_DATA_FCMDUMP] = 'MSM_DUMP_DATA_FCMDUMP'
         # 0x100 - tmc-etr registers and 0x101 - for tmc-etf registers
         self.dump_data_id_lookup_table[
             client.MSM_DUMP_DATA_TMC_REG + 1] = 'MSM_DUMP_DATA_TMC_REG'

linux-ramdump-parser-v2/fcmdump.py

+# Copyright (c) 2017, The Linux Foundation. All rights reserved.
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License version 2 and
+# only version 2 as published by the Free Software Foundation.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+
+import struct
+import os
+from print_out import print_out_str
+from ramparse import VERSION
+
+class FCM_Dump():
+
+    def __init__(self, start, end):
+        self.start_addr = start
+        self.end_addr = end
+
+    def dump_fcm_img(self,ram_dump):
+        if self.start_addr >= self.end_addr:
+            return False
+        rsz = self.end_addr - self.start_addr
+        fcmfile = ram_dump.open_file('fcm.bin')
+        for i in range(0, rsz):
+            val = ram_dump.read_byte(self.start_addr + i, False)
+            fcmfile.write(struct.pack('<B', val))
+
+        fcmfile.close()