Texas Instruments TMS320C54x, User Manual

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Symbol Table Structure and Content
A-23 Common Object File Format
A.7.8 Auxiliary Entries
Each symbol table entry may have one or no auxiliary entry. An auxiliary sym-
bol table entry contains the same number of bytes as a symbol table entry (18),
but the format of an auxiliary entry depends on the symbol’s type and storage
class. Table A–18 summarizes these relationships.
Table A–18. Auxiliary Symbol Table Entries Format
Type Entry
Name
Storage
Class Derived
Type 1 Basic
Type
Auxiliary Entry Format
.file C_FILE DT_NON T_NULL Filename (see Table A–19)
.text, .data, .bss C_STAT DT_NON T_NULL Section (see Table A–20)
tagname C_STRTAG
C_UNTAG
C_ENTAG DT_NON T_NULL Tag name (see Table A–21)
.eos C_EOS DT_NON T_NULL End of structure (see Table A–22)
fcname C_EXT
C_STAT DT_FCN (See note 1) Function (see Table A–23)
arrname (See note 2) DT_ARY (See note 1) Array (see Table A–24)
.bb, .eb C_BLOCK DT_NON T_VOID Beginning and end of a block (see
Table A–25 and Table A–26)
.bf, .ef C_FCN DT_NON T_VOID Beginning and end of a function (see
Table A–25 and Table A–26)
Name related to a
structure, union, or
enumeration (See note 2) DT_PTR
DT_ARR
DT_NON T_STRUCT
T_UNION
T_ENUM Name related to a structure, union, or
enumeration (see Table A–27)
Notes: 1) Any type except T_MOE
2) C_AUTO, C_STAT, C_MOS, C_MOU, C_TPDEF
In Table A–18, tagname refers to any symbol name (including the special
symbol
nfake). Fcname and arrname refer to any symbol name.
A symbol that satisfies more than one condition in Table A–18 should have a
union format in its auxiliary entry. A symbol that satisfies none of these condi-
tions should not have an auxiliary entry.