Commits on Jun 7, 2024

1. Fix meaning of generated .debug_loc sections …

   This commit is a fix to Wasmtime's DWARF processing transform to correct
   the meaning of the `.debug_loc` section. This section's addresses are
   relative to the `DW_AT_low_pc` entry located in the
   `DW_TAG_compile_unit` container, but Wasmtime's construction of this
   section didn't take this into account. Instead all addresses in
   `.debug_loc` are relative to the start of the compiled object, not to
   the start of the compile unit itself. This commit fixes this by
   unconditionally describing `DW_TAG_compile_unit` locations with
   `DW_AT_ranges` instead of `DW_AT_low_pc`. This ends up fixing debug
   information for debug information using `.debug_loc` with multiple
   codegen units.
   
   Closes bytecodealliance#8752

   

   alexcrichton committed Jun 7, 2024
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