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updates to lua program to furhter support new constructs and correct report errors.

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ed
2026-08-15 19:52:56 -04:00
parent 8a825a59c7
commit a16c727db2
13 changed files with 592 additions and 181 deletions
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scripts/passes/dwarf_injection.lua
+4 -3
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@@ -2,7 +2,7 @@
---
--- Reads the post-link ELF directly (io.open; walks the ELF32 section header table to find
--- `.debug_info` + `.debug_abbrev` + `.debug_str` + `.debug_line` + `.debug_aranges` + `.debug_rnglists`),
--- APPENDS synthetic DWARF line-program sequences for every `code_<name>` atom, EXTENDS the `.debug_aranges`
--- APPENDS synthetic DWARF line-program sequences for every tape atom, EXTENDS the `.debug_aranges`
--- and main-CU range tables with the atom ranges, and INSERTS synthetic atom/component DIE children into the
--- existing main compilation unit in `.debug_info` (no second compilation unit).
--- Per-atom `DW_TAG_subprogram` + per-register `DW_TAG_variable` entries make
@@ -1344,7 +1344,7 @@ local function build_new_abbrev()
attr( DW_AT_name, DW_FORM_string)
.. attr(DW_AT_low_pc, DW_FORM_addr)
.. attr(DW_AT_high_pc, DW_FORM_addr)
.. attr(DW_AT_linkage_name, DW_FORM_string)) -- equals DW_AT_name; lets gdb's symbol-table lookup resolve to our subprogram (not the gcc global `code_<name>` const U4 array)
.. attr(DW_AT_linkage_name, DW_FORM_string)) -- equals DW_AT_name; gdb resolves the subprogram, not the gcc global array
local abbrev_variable = abbrev(ABBREV_VARIABLE, DW_TAG_variable, false, -- DW_CHILDREN_no
attr( DW_AT_name, DW_FORM_string)
@@ -1857,7 +1857,7 @@ local function build_inserted_children(main_cu_offset, main_cu_end_excl, atom_ta
end
-- 4) Emit per-atom DW_TAG_subprograms (children of main CU).
-- Subprogram names match nm symbols without a `code_` prefix.
-- Subprogram names match the written C ident (the ELF symbol).
-- The gcc global `<name>[]` is a DW_TAG_variable without children; our subprogram has the wave-context var children.
-- gdb's symbol resolution picks our subprogram (it has low_pc/high_pc + children) over the gcc global for function-context lookups.
for _, atom in ipairs(atom_table) do
@@ -2313,5 +2313,6 @@ end
M.compute_loclists_offsets_for_test = compute_loclists_offsets
M.build_debug_loclists_section_for_test = build_debug_loclists_section
M.tape_piece_size_for_test = tape_piece_size
M.build_atom_table_for_test = build_atom_table
return M