rudy_dwarf::function

Function get_declaration_type

Source 
pub fn get_declaration_type(
    _db: &dyn DwarfDb,
    die: &DebuggingInformationEntry<'_, '_, EndianReader<LittleEndian, OwnedOrBorrowed>>,
    unit_ref: &UnitRef<'_, EndianReader<LittleEndian, OwnedOrBorrowed>>,
) -> FunctionDeclarationType
Expand description

Infer what kind of declaration this DIE represents

Some examples:

Closure:

0x000000c8: DW_TAG_subprogram DW_AT_low_pc (0x0000000000000158) DW_AT_high_pc (0x000000000000018c) DW_AT_frame_base (DW_OP_reg29 W29) DW_AT_linkage_name (“ZN3std2rt10lang_start28$u7b$$u7b$closure$u7d$$u7d$17hfe953699872e52f8E”) DW_AT_name (“{closure#0}<()>”) DW_AT_decl_file (“/Users/sam/.rustup/toolchains/stable-aarch64-apple-darwin/lib/rustlib/src/rust/library/std/src/rt.rs”) DW_AT_decl_line (199) DW_AT_type (0x00004dda “i32”)

Function with generics:

0x00000132: DW_TAG_subprogram DW_AT_low_pc (0x00000000000000f8) DW_AT_high_pc (0x0000000000000158) DW_AT_frame_base (DW_OP_reg29 W29) DW_AT_linkage_name (“_ZN3std2rt10lang_start17h3ee7518cb9a82119E”) DW_AT_name (“lang_start<()>”) DW_AT_decl_file (“/Users/sam/.rustup/toolchains/stable-aarch64-apple-darwin/lib/rustlib/src/rust/library/std/src/rt.rs”) DW_AT_decl_line (192) DW_AT_type (0x00009a1c “isize”)

Class method:

0x000001bc: DW_TAG_subprogram DW_AT_linkage_name (“_ZN3std4hash6random11RandomState3new17he3583681eab89a20E”) DW_AT_name (“new”) DW_AT_decl_file (“/Users/sam/.rustup/toolchains/stable-aarch64-apple-darwin/lib/rustlib/src/rust/library/std/src/hash/random.rs”) DW_AT_decl_line (56) DW_AT_type (0x0000019c “std::hash::random::RandomState”) DW_AT_declaration (true)

Implementation of a trait method (with #[inline] annotation:

0x000001d1: DW_TAG_subprogram DW_AT_linkage_name (“ZN73$LT$std..hash..random..RandomState$u20$as$u20$core..default..Default$GT$7default17h8f7526c79c40ea4cE”) DW_AT_name (“default”) DW_AT_decl_file (“/Users/sam/.rustup/toolchains/stable-aarch64-apple-darwin/lib/rustlib/src/rust/library/std/src/hash/random.rs”) DW_AT_decl_line (151) DW_AT_type (0x0000019c “std::hash::random::RandomState”) DW_AT_inline (DW_INL_inlined)

Method that was inlined into another function:

NOTE: this is not a subprogram. This would typically appear inside a subprogram DIE and is used to track the function that was inlined here.

0x0000027e: DW_TAG_inlined_subroutine DW_AT_abstract_origin (0x000064ed “_ZN4core4cell13Cell$LT$T$GT$7replace17hcbb859b11ab45ce0E”) DW_AT_low_pc (0x00000000000004cc) DW_AT_high_pc (0x00000000000004d4) DW_AT_call_file (“/Users/sam/.rustup/toolchains/stable-aarch64-apple-darwin/lib/rustlib/src/rust/library/core/src/cell.rs”) DW_AT_call_line (429) DW_AT_call_column (14)

Specification of a class method:

0x0000923c: DW_TAG_subprogram DW_AT_low_pc (0x0000000000002cd8) DW_AT_high_pc (0x0000000000002df4) DW_AT_frame_base (DW_OP_reg29 W29) DW_AT_specification (0x000058e0 “_ZN5small11TestStruct08method_017h636bec720e368708E”)