Configuration and Linker

The @config block describes the output format. The @linker block describes the external MIR input.

Configuration

@config:
.sectiondef ".section"
.make section "data"
.make section "text"
.make section "bss"
.sectionend ":"
.entrysection "text"
.entrylabel "_start"
.comment ";"
.labelend ":"
.datasection "data"
.defaultsection "text"
.sectionflags "text" "rx"
.sectionalign "text" 4
.sectionvaddr "text" 4194304
.wordsize 32
.addresssize 32
.endianess "little"
.casesensitive true
.symbolprefix "_"
.localprefix "."
.undefinedsymbols "error"
.duplicateSymbols "error"
.strict true
.allowemptysections false
.bitorder "msb"
@configend

Required directives are:

Directive	Meaning
`.sectiondef`	Prefix used to render an output section.
`.make section`	Adds a valid output section. Repeatable.
`.sectionend`	Terminates a rendered section header.
`.entrysection`	Section receiving the default MIR output.
`.entrylabel`	Entry label rendered for the entry section.
`.comment`	Comment marker for rendered output.
`.labelend`	Label terminator.
`.datasection`	Section used for data symbols.
`.defaultsection`	Section selected when no section is supplied.
`.wordsize`	Width used by `emmit`, in bits.
`.addresssize`	Target address width, in bits.
`.endianess`	`"little"` or `"big"`.
`.casesensitive`	Controls case matching for external Rule names.
`.symbolprefix`	Prefix for rendered symbols.
`.localprefix`	Prefix for local symbols.
`.undefinedsymbols`	`error`, `warn`, or `ignore`.
`.duplicateSymbols`	`error`, `warn`, or `ignore`.
`.strict`	Enables strict target policy.
`.allowemptysections`	Controls empty section rendering.

Optional section directives are .sectionflags, .sectionalign, .sectionvaddr, and .bitorder. .sectionalign controls physical and automatic virtual alignment in bytes; .sectionvaddr assigns an explicit virtual base to a section. .bitorder accepts "msb" or "lsb".

Linker

@linker:
.ext ".asm"
.name "main"
.searching ""
@linkerend

.ext is the accepted external MIR extension. .name identifies the main source name. .searching controls automatic file discovery used by linker features and variants:

"" searches beside the main file.
A folder string searches below that folder.
false disables automatic searching.

The linker configuration is target metadata; it does not itself compile the MIR. The external compiler API validates the MIR extension before processing.