Module symbols

“Nlist” style symbols in this binary - beware, like most symbol tables in most binary formats, they are strippable, and should not be relied upon, see the imports and exports modules for something more permanent.

Symbols are essentially a type, offset, and the symbol name

Structs

• Nlist
• Nlist32
• Nlist64
• SymbolIterator
• Symbols
  A zero-copy “nlist” style symbol table (“stab”), including the string table
• SymbolsCtx

Constants

• MAX_SECT
  1 thru 255 inclusive
• NLIST_TYPE_GLOBAL
• NLIST_TYPE_LOCAL
• NLIST_TYPE_MASK
• NO_SECT
  symbol is not in any section
• N_ABS
  absolute, n_sect == NO_SECT
• N_AST
• N_BCOMM
• N_BINCL
• N_BNSYM
• N_DESC_DISCARDED
  Sometimes used by the dynamic linker at runtime in a fully linked image. Do not set this bit in a fully linked image.
• N_ECOML
• N_ECOMM
• N_EINCL
• N_ENSYM
• N_ENTRY
• N_EXCL
• N_EXT
  external symbol bit, set for external symbols
• N_FNAME
• N_FUN
• N_GSYM
• N_INDR
  indirect
• N_LBRAC
• N_LCSYM
• N_LENG
• N_LSYM
• N_NO_DEAD_STRIP
  When set in a relocatable object file (file type MH_OBJECT) on a defined symbol, indicates to the static linker to never dead-strip the symbol.
• N_OLEVEL
• N_OPT
• N_OSO
• N_PARAMS
• N_PBUD
  prebound undefined (defined in a dylib)
• N_PC
• N_PEXT
  private external symbol bit
• N_PSYM
• N_RBRAC
• N_RSYM
• N_SECT
  defined in section number n_sect
• N_SLINE
• N_SO
• N_SOL
• N_SSYM
• N_STAB
  if any of these bits set, a symbolic debugging entry
• N_STSYM
• N_TYPE
  mask for the type bits
• N_UNDF
  undefined, n_sect == NO_SECT
• N_VERSION
• N_WEAK_DEF
  Indicates that this symbol is a weak definition. If the static linker or the dynamic linker finds another (non-weak) definition for this symbol, the weak definition is ignored. Only symbols in a coalesced section can be marked as a weak definition.
• N_WEAK_REF
  Indicates that this undefined symbol is a weak reference. If the dynamic linker cannot find a definition for this symbol, it sets the address of this symbol to 0. The static linker sets this symbol given the appropriate weak-linking flags.
• REFERENCED_DYNAMICALLY
  Must be set for any defined symbol that is referenced by dynamic-loader APIs (such as dlsym and NSLookupSymbolInImage) and not ordinary undefined symbol references. The strip tool uses this bit to avoid removing symbols that must exist: If the symbol has this bit set, strip does not strip it.
• REFERENCE_FLAG_DEFINED
  This symbol is defined in this module.
• REFERENCE_FLAG_PRIVATE_DEFINED
  This symbol is defined in this module and is visible only to modules within this shared library.
• REFERENCE_FLAG_PRIVATE_UNDEFINED_LAZY
  This symbol is defined in another module in this file, is a lazy (function) symbol, and is visible only to modules within this shared library.
• REFERENCE_FLAG_PRIVATE_UNDEFINED_NON_LAZY
  This symbol is defined in another module in this file, is a non-lazy (data) symbol, and is visible only to modules within this shared library.
• REFERENCE_FLAG_UNDEFINED_LAZY
  This symbol is a reference to an external lazy symbol—that is, to a function call.
• REFERENCE_FLAG_UNDEFINED_NON_LAZY
  This symbol is a reference to an external non-lazy (data) symbol.
• REFERENCE_TYPE
  Mask for reference flags of n_desc field.
• SIZEOF_NLIST_32
• SIZEOF_NLIST_64

Functions

• n_type_to_str