as: Absolute Literals Directive
9.54.5.7 absolute-literals
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The 'absolute-literals' and 'no-absolute-literals' directives control
the absolute vs. PC-relative mode for 'L32R' instructions. These are
relevant only for Xtensa configurations that include the absolute
addressing option for 'L32R' instructions.
.begin [no-]absolute-literals
.end [no-]absolute-literals
These directives do not change the 'L32R' mode--they only cause the
assembler to emit the appropriate kind of relocation for 'L32R'
instructions and to place the literal values in the appropriate section.
To change the 'L32R' mode, the program must write the 'LITBASE' special
register. It is the programmer's responsibility to keep track of the
mode and indicate to the assembler which mode is used in each region of
code.
If the Xtensa configuration includes the absolute 'L32R' addressing
option, the default is to assume absolute 'L32R' addressing unless the
'--no-absolute-literals' command-line option is specified. Otherwise,
the default is to assume PC-relative 'L32R' addressing. The
'absolute-literals' directive can then be used to override the default
determined by the command-line options.
Info Catalog
as: Literal Prefix Directive
as: Xtensa Directives