Non-Stab Symbol Types (STABS)

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### A.1 Non-Stab Symbol Types

The following types are used by the linker and assembler, not by stab directives. Since this document does not attempt to describe aspects of object file format other than the debugging format, no details are given.

`0x0 N_UNDF`

  Undefined symbol

`0x2 N_ABS`

  File scope absolute symbol

`0x3 N_ABS | N_EXT`

  External absolute symbol

`0x4 N_TEXT`

  File scope text symbol

`0x5 N_TEXT | N_EXT`

  External text symbol

`0x6 N_DATA`

  File scope data symbol

`0x7 N_DATA | N_EXT`

  External data symbol

`0x8 N_BSS`

  File scope BSS symbol

`0x9 N_BSS | N_EXT`

  External BSS symbol

`0x0c N_FN_SEQ`

  Same as `N_FN`, for Sequent compilers

`0x0a N_INDR`

  Symbol is indirected to another symbol

`0x12 N_COMM`

  Common—visible after shared library dynamic link

`0x14 N_SETA`
`0x15 N_SETA | N_EXT`

  Absolute set element

`0x16 N_SETT`
`0x17 N_SETT | N_EXT`

  Text segment set element

`0x18 N_SETD`
`0x19 N_SETD | N_EXT`

  Data segment set element

`0x1a N_SETB`
`0x1b N_SETB | N_EXT`

  BSS segment set element

`0x1c N_SETV`
`0x1d N_SETV | N_EXT`

  Pointer to set vector

`0x1e N_WARNING`

  Print a warning message during linking

`0x1f N_FN`

  File name of a `.o` file