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#pragma once |
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#include "SharedObjectInfo.h" |
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#include |
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#include |
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#include |
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#include |
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#include |
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#include |
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#include |
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#include |
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namespace panda { namespace backtrace { |
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namespace dwarf { |
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const constexpr std::size_t max_inline = 10; |
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struct HighLow { |
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Dwarf_Addr high; |
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Dwarf_Addr low; |
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}; |
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enum class Scan { found, not_found, dead_end }; |
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struct DieHolder; |
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struct LookupResult; |
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struct DieRC; |
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using DieSP = panda::iptr; |
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struct CU; |
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using CUSP = panda::iptr; |
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using DieCollection = std::list; |
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0
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struct FunctionDetails { |
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panda::string name; |
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DieSP name_die = nullptr; |
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std::uint64_t line_no = 0; |
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panda::string source; |
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std::uint32_t mask = 0; |
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}; |
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struct DieRC: panda::Refcnt { |
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Dwarf_Die die; |
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Dwarf_Debug debug; |
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DieSP parent; |
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DieCollection context; |
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0
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struct FQN { |
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string full_name; |
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DieSP source_die; |
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}; |
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DieRC(Dwarf_Die die_, Dwarf_Debug debug_, DieSP parent_); |
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~DieRC(); |
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panda::optional get_addr() noexcept; |
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Scan contains(std::uint64_t offset) noexcept; |
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DieSP resolve_ref(DieSP source, Dwarf_Half attribute) noexcept; |
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DieSP discover(DieSP target) noexcept; |
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DieSP discover(Dwarf_Off target_offset, DieSP node) noexcept; |
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FQN gather_fqn() noexcept; |
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DieSP refine_location(std::uint64_t offset) noexcept; |
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FunctionDetails refine_fn(LookupResult& lr) noexcept; |
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void refine_fn_ao(DieSP abstract_origin, FunctionDetails& details) noexcept; |
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void refine_fn_name(DieSP it, FunctionDetails& details) noexcept; |
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void refine_fn_line(DieSP die, std::uint64_t offset, FunctionDetails& details) noexcept; |
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void refine_fn_line_fallback(DieSP it, FunctionDetails& details) noexcept; |
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void refine_fn_source(DieSP it, FunctionDetails& details, CU& cu) noexcept; |
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void refine_fn_spec(DieSP specification, FunctionDetails& details) noexcept; |
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}; |
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0
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struct LookupResult { |
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0
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LookupResult(CU& root_) noexcept: root{CUSP{&root_}} {} |
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LookupResult(const LookupResult&) = delete; |
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LookupResult(LookupResult&&); |
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bool is_complete() noexcept; |
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bool get_frames(std::uint64_t ip, const SharedObjectInfo& so, StackFrames& frames) noexcept; |
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CUSP root; |
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DieSP cu; |
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DieSP subprogram; |
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std::uint64_t offset{0}; |
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}; |
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struct CU: panda::Refcnt { |
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Dwarf_Debug debug; |
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int number; |
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Dwarf_Unsigned header_length = 0; |
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Dwarf_Unsigned abbrev_offset = 0; |
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Dwarf_Half address_size = 0; |
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Dwarf_Half version_stamp = 0; |
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Dwarf_Half offset_size = 0; |
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Dwarf_Half extension_size = 0; |
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Dwarf_Unsigned typeoffset = 0; |
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Dwarf_Half header_type = DW_UT_compile; |
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Dwarf_Sig8 signature; |
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Dwarf_Off cu_offset = 0; |
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DieSP cu_die; |
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102
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char **sources = nullptr; |
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Dwarf_Signed sources_count = 0; |
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105
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CU(Dwarf_Debug debug, int number_); |
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~CU(); |
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108
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LookupResult resolve(std::uint64_t offset) noexcept; |
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void resolve(std::uint64_t offset, DieSP& root, LookupResult& lr) noexcept; |
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111
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string get_source(size_t index) noexcept; |
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}; |
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} |
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115
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116
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struct DwarfInfo; |
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118
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struct DwarfInfo { |
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using file_guard_t = std::unique_ptr>; |
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121
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SharedObjectInfo so_info; |
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Dwarf_Ptr err_arg = nullptr; |
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Dwarf_Debug debug = nullptr; |
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std::list CUs; |
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file_guard_t guard; |
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DwarfInfo(const SharedObjectInfo& info_):so_info{info_}{} |
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~DwarfInfo(); |
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bool load(file_guard_t&& guard) noexcept; |
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bool resolve(std::uint64_t ip, StackFrames& frames) noexcept; |
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}; |
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using DwarfInfoMap = std::map>; |
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135
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136
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void install_backtracer(); |
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138
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}} |