SPRU513Y August 2001 – June 2022 SM320F28335-EP
A cross-reference listing shows symbols and their definitions. To obtain a cross-reference listing, invoke the assembler with the --asm_cross_reference_listing option (see Section 5.4) or use the .option directive with the X operand (see Select Listing Options). The assembler appends the cross-reference to the end of the source listing. The following example shows the four fields contained in the cross-reference listing.
LABEL VALUE DEFN REF
.TMS320C2800 00000001 0
_func 00000000' 18
var1 00000000- 4 17
var2 00000004- 5 18 | Label | column contains each symbol that was defined or referenced during the assembly. |
| Value | column contains an 8-digit hexadecimal number (which is the value assigned to the symbol) or a name that describes the symbol's attributes. A value may also be preceded by a character that describes the symbol's attributes. The following table lists these characters and names. |
| Definition | (DEFN) column contains the statement number that defines the symbol. This column is blank for undefined symbols. |
| Reference | (REF) column lists the line numbers of statements that reference the symbol. A blank in this column indicates that the symbol was never used. |
| Character or Name | Meaning | |
|---|---|---|
| REF | External reference (global symbol) | |
| UNDF | Undefined | |
| ' | Symbol defined in a .text section | |
| " | Symbol defined in a .data section | |
| + | Symbol defined in a .sect section | |
| - | Symbol defined in a .bss or .usect section |
The compiler also provides a similar --gen_cross_reference_listing option, which generates a listing file containing reference information for identifiers in C/C++ source files. See the "Generating Cross-Reference Listing Information" section in the TMS320C28x Optimizing C/C++ Compiler User's Guide