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8.34.5.4 literal

The .literal directive is used to define literal pool data, i.e., read-only 32-bit data accessed via L32R instructions.

         .literal label, value[, value...]

This directive is similar to the standard .word directive, except that the actual location of the literal data is determined by the assembler and linker, not by the position of the .literal directive. Using this directive gives the assembler freedom to locate the literal data in the most appropriate place and possibly to combine identical literals. For example, the code:

         entry sp, 40
         .literal .L1, sym
         l32r    a4, .L1

can be used to load a pointer to the symbol sym into register a4. The value of sym will not be placed between the ENTRY and L32R instructions; instead, the assembler puts the data in a literal pool.

Literal pools for absolute mode L32R instructions (see Absolute Literals Directive) are placed in a separate .lit4 section. By default literal pools for PC-relative mode L32R instructions are placed in a separate .literal section; however, when using the `--text-section-literals' option (see Command Line Options), the literal pools are placed in the current section. These text section literal pools are created automatically before ENTRY instructions and manually after `.literal_position' directives (see literal_position). If there are no preceding ENTRY instructions, explicit .literal_position directives must be used to place the text section literal pools; otherwise, as will report an error.