kcbanner
5781016c35
dwarf: add support for .eh_frame_hdr when unwinding
...
- .eh_frame_hdr contains a binary-searchable data structure for finding an FDE. If present, we can use this
section to avoid having to parse the entire FDE/CIE list in the binary, instead only entries that are actually
required for unwinding are read.
- rework the inputs pc-relative pointer decoding to support both already-mapped sections as well as sections
mapped from a file
- store the VirtualMachine on UnwindContext so the allocations can be reused
2023-07-20 22:58:13 -04:00
kcbanner
551f153718
dwarf: fixes for non-64 bit systems
2023-07-20 22:58:13 -04:00
kcbanner
c98e03fc7e
- rework CFI instruction parsing to not use std.meta
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- move register formatting code to zig-dwardump
2023-07-20 22:58:13 -04:00
kcbanner
9145ff7da0
dwarf: implement more register number mappings
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- add dwarf.abi.RegisterContext to handle register numbers changing based on DWARF format
2023-07-20 22:58:13 -04:00
kcbanner
b449d98a93
- rework StackIterator to optionally use debug_info to unwind the stack
...
- add abi routines for getting register values
- unwding is working!
2023-07-20 22:58:13 -04:00
kcbanner
69399fbb82
- add default register rule
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- fixup eh pointer decoding
2023-07-20 22:58:13 -04:00
kcbanner
a0a40c2e7e
- implement more opcodes
2023-07-20 22:58:13 -04:00
kcbanner
7b4611cfb3
- move writing code to zig-dwarfdump
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- implement restore_state, restore_extended, offset_extended
2023-07-20 22:58:13 -04:00
kcbanner
338df862d1
- fix remember_state
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- implement def_cfa_register
2023-07-20 22:58:13 -04:00
kcbanner
f3f3c877e0
- add DWARF expression parser
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- change read apis to use a stream
- add register formatters
2023-07-20 22:58:13 -04:00
kcbanner
38303d7b9c
add VirtualMachine to run CFA instructions
2023-07-20 22:58:13 -04:00
kcbanner
8b8d627137
- add call frame instruction parser
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- add register printing
2023-07-20 22:58:13 -04:00
