Texas Instruments TMS320C54x, User Manual

Page: 228 / 469

Linker Options
7-16
For each supported environment variable, the ’C54x linker also supports a
processor-specific environment variable with a C54X_ prefix (e.g.,
C54X_C_DIR). The linker searches for the processor-specific variable first; if
the variable isn’t found, the linker searches for the generic variable. If both vari-
ables are set, the settings of the processor-specific variable are used. The
processor-specific variables are useful when you are using Texas Instruments
tools for different processors at the same time. If you are using the tool set for
only one type of processor, these environment variables are unnecessary.
7.4.10 Disable Conditional Linking (–j Option)
The –j option disables conditional linking that has been set up with the
assembler .clink directive. By default, all sections are unconditionally linked.
7.4.11 Ignore Alignment Flags (–k Option)
The –k option forces the linker to ignore any SECTIONS directive alignment
specifications. For more information on the SECTIONS directive, see Section
7.8, “The SECTIONS Directive”.
7.4.12 Create a Map File (–m
filename Option)
The –m option creates a linker map listing and puts it in filename. The syntax
for the –m option is:
–m filename
The linker map describes:
-
Memory configuration
-
Input and output section allocation
-
The addresses of external symbols after they have been relocated
The map file contains the name of the output module and the entry point; it may
also contain up to three tables:
-
A table showing the new memory configuration if any non-default memory
is specified
-
A table showing the linked addresses of each output section and the input
sections that make up the output sections
-
A table showing each external symbol and its address. This table has two
columns: the left column contains the symbols sorted by name, and the
right column contains the symbols sorted by address