Had to apply this patch so that DWARF works properly on executables generated
by GCC on Windows (for CIE/FDE, data after the length should not be read if
length is 0).
I suppose this should also apply on other platforms?
http://llvm-reviews.chandlerc.com/D1487
Files:
source/Symbol/DWARFCallFrameInfo.cpp
Index: source/Symbol/DWARFCallFrameInfo.cpp
===================================================================
--- source/Symbol/DWARFCallFrameInfo.cpp
+++ source/Symbol/DWARFCallFrameInfo.cpp
@@ -341,7 +341,7 @@
dw_offset_t next_entry = current_entry + len + 4;
dw_offset_t cie_id = m_cfi_data.GetU32 (&offset);
- if (cie_id == 0 || cie_id == UINT32_MAX)
+ if (cie_id == 0 || cie_id == UINT32_MAX || len == 0)
{
m_cie_map[current_entry] = ParseCIE (current_entry);
offset = next_entry;
Index: source/Symbol/DWARFCallFrameInfo.cpp
===================================================================
--- source/Symbol/DWARFCallFrameInfo.cpp
+++ source/Symbol/DWARFCallFrameInfo.cpp
@@ -341,7 +341,7 @@
dw_offset_t next_entry = current_entry + len + 4;
dw_offset_t cie_id = m_cfi_data.GetU32 (&offset);
- if (cie_id == 0 || cie_id == UINT32_MAX)
+ if (cie_id == 0 || cie_id == UINT32_MAX || len == 0)
{
m_cie_map[current_entry] = ParseCIE (current_entry);
offset = next_entry;
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