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LibDebug: Support addrx*, strx* and rnglistx forms

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These forms were introduced in DWARF5, and have a fair deal of
advantages over the more traditional encodings: they reduce the size of
the binary and the number of relocations.

GCC does not emit these with `-g1` by default, but Clang does at all
debug levels.
This commit is contained in:
Daniel Bertalan 2021-10-09 17:38:26 +02:00 • committed by Linus Groh
parent 8e5b70a0ba
commit ac53569bd1
7 changed files with 213 additions and 3 deletions
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4
Userland/Libraries/LibDebug/Dwarf/DwarfInfo.h
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@ -31,6 +31,8 @@ public:
ReadonlyBytes debug_strings_data() const { return m_debug_strings_data; }
ReadonlyBytes debug_line_strings_data() const { return m_debug_line_strings_data; }
ReadonlyBytes debug_range_lists_data() const { return m_debug_range_lists_data; }
ReadonlyBytes debug_str_offsets_data() const { return m_debug_str_offsets_data; }
ReadonlyBytes debug_addr_data() const { return m_debug_addr_data; }
template<typename Callback>
void for_each_compilation_unit(Callback) const;
@ -60,6 +62,8 @@ private:
ReadonlyBytes m_debug_line_data;
ReadonlyBytes m_debug_line_strings_data;
ReadonlyBytes m_debug_range_lists_data;
ReadonlyBytes m_debug_str_offsets_data;
ReadonlyBytes m_debug_addr_data;
NonnullOwnPtrVector<Dwarf::CompilationUnit> m_compilation_units;