;; RUN: wasm-split --help | filecheck %s CHECK: wasm-split INFILES CHECK-NEXT: CHECK-NEXT: Split a module into a primary module and a secondary module, or instrument a CHECK-NEXT: module to gather a profile that can inform future splitting, or manage such CHECK-NEXT: profiles. Options that are only accepted in particular modes are marked with the CHECK-NEXT: accepted "[]" in their descriptions. CHECK-NEXT: CHECK-NEXT: Options: ;; Skip standard tool options CHECK: --split Split an input module into two output CHECK-NEXT: modules. The default mode. CHECK-NEXT: CHECK-NEXT: --instrument Instrument an input module to allow it to CHECK-NEXT: generate a profile that can be used to CHECK-NEXT: guide splitting. CHECK-NEXT: CHECK-NEXT: --merge-profiles Merge multiple profiles for the same CHECK-NEXT: module into a single profile. CHECK-NEXT: CHECK-NEXT: --profile [split] The profile to use to guide CHECK-NEXT: splitting. CHECK-NEXT: CHECK-NEXT: --keep-funcs [split] Comma-separated list of functions CHECK-NEXT: to keep in the primary module, regardless CHECK-NEXT: of any profile. CHECK-NEXT: CHECK-NEXT: --split-funcs [split] Comma-separated list of functions CHECK-NEXT: to split into the secondary module, CHECK-NEXT: regardless of any profile. If there is no CHECK-NEXT: profile, then this defaults to all CHECK-NEXT: functions defined in the module. CHECK-NEXT: CHECK-NEXT: --primary-output,-o1 [split] Output file for the primary CHECK-NEXT: module. CHECK-NEXT: CHECK-NEXT: --secondary-output,-o2 [split] Output file for the secondary CHECK-NEXT: module. CHECK-NEXT: CHECK-NEXT: --symbolmap [split] Write a symbol map file for each CHECK-NEXT: of the output modules. CHECK-NEXT: CHECK-NEXT: --placeholdermap [split] Write a file mapping placeholder CHECK-NEXT: indices to the function names. CHECK-NEXT: CHECK-NEXT: --import-namespace [split] The namespace from which to CHECK-NEXT: import objects from the primary module CHECK-NEXT: into the secondary module. CHECK-NEXT: CHECK-NEXT: --placeholder-namespace [split] The namespace from which to CHECK-NEXT: import placeholder functions into the CHECK-NEXT: primary module. CHECK-NEXT: CHECK-NEXT: --export-prefix [split] An identifying prefix to prepend CHECK-NEXT: to new export names created by module CHECK-NEXT: splitting. CHECK-NEXT: CHECK-NEXT: --profile-export [instrument] The export name of the CHECK-NEXT: function the embedder calls to write the CHECK-NEXT: profile into memory. Defaults to CHECK-NEXT: `__write_profile`. CHECK-NEXT: CHECK-NEXT: --emit-module-names [split, instrument] Emit module names, CHECK-NEXT: even if not emitting the rest of the CHECK-NEXT: names section. Can help differentiate the CHECK-NEXT: modules in stack traces. This option will CHECK-NEXT: be removed once simpler ways of naming CHECK-NEXT: modules are widely available. See CHECK-NEXT: https://bugs.chromium.org/p/v8/issues/detail?id=11808. CHECK-NEXT: CHECK-NEXT: --initial-table [split, instrument] A hack to ensure the CHECK-NEXT: split and instrumented modules have the CHECK-NEXT: same table size when using Emscripten's CHECK-NEXT: SPLIT_MODULE mode with dynamic linking. CHECK-NEXT: TODO: Figure out a more elegant solution CHECK-NEXT: for that use case and remove this. CHECK-NEXT: CHECK-NEXT: --emit-text,-S [split, instrument] Emit text instead of CHECK-NEXT: binary for the output file or files. CHECK-NEXT: CHECK-NEXT: --debuginfo,-g [split, instrument] Emit names section in CHECK-NEXT: wasm binary (or full debuginfo in wast) CHECK-NEXT: CHECK-NEXT: --output,-o [instrument, merge-profiles] Output file. CHECK-NEXT: CHECK-NEXT: --verbose,-v Verbose output mode. Prints the functions CHECK-NEXT: that will be kept and split out when CHECK-NEXT: splitting a module. CHECK-NEXT: