Struct symbolic_debuginfo::macho::BcSymbolMap[][src]

pub struct BcSymbolMap<'d> { /* fields omitted */ }
Expand description

An in-memory representation of the Apple bitcode symbol map.

This is an auxiliary file, not an object file. It can be used to provide de-obfuscated symbol names to a MachObject object using its load_symbolmap method.

It is common for bitcode builds to obfuscate the names in the object file’s symbol table so that even the DWARF files do not have the actual symbol names. In this case the build process will create a .bcsymbolmap file which maps the obfuscated symbol names back to the original ones. This structure can parse these files and allows providing this information to the MachObject so that it has the original symbol names instead of __hidden#NNN_ ones.

See MachObject::load_symbolmap for an example of how to use this.

Implementations

Tests whether the buffer could contain a BcSymbolMap.

Parses the BCSymbolMap.

A symbol map does not contain the UUID of its symbols, instead this is normally encoded in the filename.

Returns the name of a symbol if it exists in this mapping.

Examples

use symbolic_debuginfo::macho::BcSymbolMap;

// let data = std::fs::read("c8374b6d-6e96-34d8-ae38-efaa5fec424f.bcsymbolmap").unwrap();
let map = BcSymbolMap::parse(&data).unwrap();

assert_eq!(map.get(43), Some("Sources/Sentry/Public/SentryMessage.h"));
assert_eq!(map.get(usize::MAX), None);  // We do not have this many entries

Resolves a name using this mapping.

If the name matches the __hidden#NNN_ pattern that indicates a BcSymbolMap lookup it will be looked up the resolved name will be returned. Otherwise the name is returned unchanged.

Examples

use symbolic_debuginfo::macho::BcSymbolMap;

// let data = std::fs::read("c8374b6d-6e96-34d8-ae38-efaa5fec424f.bcsymbolmap").unwrap();
let map = BcSymbolMap::parse(&data).unwrap();

assert_eq!(map.resolve("__hidden#43_"), "Sources/Sentry/Public/SentryMessage.h");
assert_eq!(map.resolve("_addJSONData"), "_addJSONData");  // #64

Returns an iterator over all the names in this bitcode symbol map.

Trait Implementations

The Self type with 'slf lifetimes, returned by as_self.

Returns a reference to self with downcasted lifetime.

Returns a copy of the value. Read more

Performs copy-assignment from source. Read more

Formats the value using the given formatter. Read more

Auto Trait Implementations

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Given the context attached to a nom error, and given the original input to the nom parser, extract more the useful context information. Read more

Causes self to use its Binary implementation when Debug-formatted.

Causes self to use its Display implementation when Debug-formatted. Read more

Causes self to use its LowerExp implementation when Debug-formatted. Read more

Causes self to use its LowerHex implementation when Debug-formatted. Read more

Causes self to use its Octal implementation when Debug-formatted.

Causes self to use its Pointer implementation when Debug-formatted. Read more

Causes self to use its UpperExp implementation when Debug-formatted. Read more

Causes self to use its UpperHex implementation when Debug-formatted. Read more

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Given the original input, as well as the context reported by nom, recreate a context in the original string where the error occurred. Read more

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Calls .tap() only in debug builds, and is erased in release builds.

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Calls .tap_ref() only in debug builds, and is erased in release builds. Read more

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Provides immutable access for inspection. Read more

Calls tap in debug builds, and does nothing in release builds.

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Calls tap_mut in debug builds, and does nothing in release builds.

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Calls tap_ref in debug builds, and does nothing in release builds.

Provides mutable access to the reference for modification.

Calls tap_ref_mut in debug builds, and does nothing in release builds.

Provides immutable access to the borrow for inspection. Read more

Calls tap_borrow in debug builds, and does nothing in release builds.

Provides mutable access to the borrow for modification.

Calls tap_borrow_mut in debug builds, and does nothing in release builds. Read more

Immutably dereferences self for inspection.

Calls tap_deref in debug builds, and does nothing in release builds.

Mutably dereferences self for modification.

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🔬 This is a nightly-only experimental API. (toowned_clone_into)

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The type returned in the event of a conversion error.

Performs the conversion.

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Performs the conversion.