Toolchain

qxc treats the compiler as the build system for a complete source bundle. The bundle identifies every source module, logical module mapping, target property, build option, and output that can affect the artifact.

• The qxcbuild.yml File specifies the source-bundle manifest, targets, module mappings, and outputs.
• CPU capabilities and steppings describes portable feature identifiers and multiversioned outputs.
• Program startup and runtime hooks describes application dispatch, runtime entrypoints, and test tables.
• Runtime module contracts describes the reserved allocator, diagnostics, initialization, and thread-lifecycle declarations supplied by RUNTIME.
• Backends and layout distinguishes native and layoutless targets.
• Compiler output and diagnostics describes direct qxc invocation and generated artifact directories.
• Source bundles gives the introductory directory layout.

The bundle declares its configured targets, and the current public qxc invocation compiles the targets loaded from that bundle. The command line does not act as an untracked second build configuration. This is central to deterministic, reproducible compilation.