Texas Instruments TMS320C54x, User Manual

Page: 248 / 469

The SECTIONS Directive
7-36
Blocking uses the block keyword to specify that the section must fit
between two address boundaries: if the section is too big, it
will start on an address boundary.
.text: block(0x80)
Page specifies the memory page to be used (see Section 7.11,
Overlay Pages, on page 7-48).
.text: PAGE 0
For the load (usually the only) allocation, you may simply use a greater-than
sign and omit the load keyword:
.text: > ROM .text: {...} > ROM
.text: > 0x1000
If more than one parameter is used, you can string them together as follows:
.text: > ROM align 16 PAGE 2
Or, if you prefer, use parentheses for readability:
.text: load = (ROM align(16) page (2))
7.8.3.1 Binding
You can supply a specific starting address for an output section by following
the section name with an address:
.text: 0x1000
This example specifies that the .text section must begin at word location
1000h. The binding address must be a 16-bit constant.
Output sections can be bound anywhere in configured memory (assuming
there is enough space), but they cannot overlap. If there is not enough space
to bind a section to a specified address, the linker issues an error message.
Note: Binding and Alignment or Named Memory are Incompatible
You cannot bind a section to an address if you use alignment or named
memory. If you try to do so, the linker issues an error message.