36da2aa6dc5ad9994b638ed09eb81c44cc05540b |
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25-Jan-2013 |
Greg Clayton <gclayton@apple.com> |
<rdar://problem/13069948> Major fixed to allow reading files that are over 4GB. The main problems were that the DataExtractor was using 32 bit offsets as a data cursor, and since we mmap all of our object files we could run into cases where if we had a very large core file that was over 4GB, we were running into the 4GB boundary. So I defined a new "lldb::offset_t" which should be used for all file offsets. After making this change, I enabled warnings for data loss and for enexpected implicit conversions temporarily and found a ton of things that I fixed. Any functions that take an index internally, should use "size_t" for any indexes and also should return "size_t" for any sizes of collections. git-svn-id: https://llvm.org/svn/llvm-project/lldb/trunk@173463 91177308-0d34-0410-b5e6-96231b3b80d8
/external/lldb/source/Plugins/SymbolFile/DWARF/DWARFDebugAbbrev.cpp
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5d187e5495ee17f6763337a6ae28c2a7b07e4945 |
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08-Jan-2011 |
Greg Clayton <gclayton@apple.com> |
Spelling changes applied from lldb_spelling.diffs from Bruce Mitchener. Thanks Bruce! git-svn-id: https://llvm.org/svn/llvm-project/llvdb/trunk@123083 91177308-0d34-0410-b5e6-96231b3b80d8
/external/lldb/source/Plugins/SymbolFile/DWARF/DWARFDebugAbbrev.cpp
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178710cd4307f3d44dc76ebd70fc7daf7ebe17c5 |
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14-Sep-2010 |
Greg Clayton <gclayton@apple.com> |
Looking at some of the test suite failures in DWARF in .o files with the debug map showed that the location lists in the .o files needed some refactoring in order to work. The case that was failing was where a function that was in the "__TEXT.__textcoal_nt" in the .o file, and in the "__TEXT.__text" section in the main executable. This made symbol lookup fail due to the way we were finding a real address in the debug map which was by finding the section that the function was in in the .o file and trying to find this in the main executable. Now the section list supports finding a linked address in a section or any child sections. After fixing this, we ran into issue that were due to DWARF and how it represents locations lists. DWARF makes a list of address ranges and expressions that go along with those address ranges. The location addresses are expressed in terms of a compile unit address + offset. This works fine as long as nothing moves around. When stuff moves around and offsets change between the remapped compile unit base address and the new function address, then we can run into trouble. To deal with this, we now store supply a location list slide amount to any location list expressions that will allow us to make the location list addresses into zero based offsets from the object that owns the location list (always a function in our case). With these fixes we can now re-link random address ranges inside the debugger for use with our DWARF + debug map, incremental linking, and more. Another issue that arose when doing the DWARF in the .o files was that GCC 4.2 emits a ".debug_aranges" that only mentions functions that are externally visible. This makes .debug_aranges useless to us and we now generate a real address range lookup table in the DWARF parser at the same time as we index the name tables (that are needed because .debug_pubnames is just as useless). llvm-gcc doesn't generate a .debug_aranges section, though this could be fixed, we aren't going to rely upon it. Renamed a bunch of "UINT_MAX" to "UINT32_MAX". git-svn-id: https://llvm.org/svn/llvm-project/llvdb/trunk@113829 91177308-0d34-0410-b5e6-96231b3b80d8
/external/lldb/source/Plugins/SymbolFile/DWARF/DWARFDebugAbbrev.cpp
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90bc5c69bb47b35debff1951ebe78ab0cf17f9f1 |
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06-Jul-2010 |
Greg Clayton <gclayton@apple.com> |
Remove extraneous semicolon after if condition (from Jean-Daniel Dupas). git-svn-id: https://llvm.org/svn/llvm-project/llvdb/trunk@107694 91177308-0d34-0410-b5e6-96231b3b80d8
/external/lldb/source/Plugins/SymbolFile/DWARF/DWARFDebugAbbrev.cpp
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24943d2ee8bfaa7cf5893e4709143924157a5c1e |
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08-Jun-2010 |
Chris Lattner <sabre@nondot.org> |
Initial checkin of lldb code from internal Apple repo. git-svn-id: https://llvm.org/svn/llvm-project/llvdb/trunk@105619 91177308-0d34-0410-b5e6-96231b3b80d8
/external/lldb/source/Plugins/SymbolFile/DWARF/DWARFDebugAbbrev.cpp
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