From 280ae8af4923450e2979deaa8ba53443ef1a810a Mon Sep 17 00:00:00 2001
From: Laura Abbott <lauraa@codeaurora.org>
Date: Tue, 11 Mar 2014 15:28:56 -0700
Subject: [PATCH] linux-ramdump-parser-v2: Properly support unwinding without
tables
unwind tables may not be used on all dumps. Support unwinding the
old fashioned way with framepointers.
Change-Id: I978c604dc0974eb6930249e47a205e3d9d37c249
---
linux-ramdump-parser-v2/ramdump.py | 7 ++++---
1 file changed, 4 insertions(+), 3 deletions(-)
diff --git a/linux-ramdump-parser-v2/ramdump.py b/linux-ramdump-parser-v2/ramdump.py
index aa69be8..bbe2a37 100644
--- a/linux-ramdump-parser-v2/ramdump.py
+++ b/linux-ramdump-parser-v2/ramdump.py
@@ -67,14 +67,15 @@ class RamDump():
def __init__(self, ramdump):
start = ramdump.addr_lookup('__start_unwind_idx')
end = ramdump.addr_lookup('__stop_unwind_idx')
+ self.ramdump = ramdump
if (start is None) or (end is None):
- print_out_str('!!! Could not lookup unwinding information')
+ self.unwind_frame = self.unwind_frame_generic
return None
# addresses
+ self.unwind_frame = self.unwind_frame_tables
self.start_idx = start
self.stop_idx = end
self.unwind_table = []
- self.ramdump = ramdump
i = 0
for addr in range(start, end, 8):
r = ramdump.read_string(addr, '<II')
@@ -325,7 +326,7 @@ class RamDump():
temp = addr + offset
return (temp & 0xffffffff) + ((temp >> 32) & 0xffffffff)
- def unwind_frame(self, frame, trace=False):
+ def unwind_frame_tables(self, frame, trace=False):
low = frame.sp
high = ((low + (THREAD_SIZE - 1)) & ~(THREAD_SIZE - 1)) + \
THREAD_SIZE
--
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