``` MBLD(1) MBLD(1) NAME mbld SYNOPSIS mbld [ -?hcfrSs ] [ -b bin ] [ -l lib ] [ -R src ] [ -I inc ] [ -B base ] [ -r runtime ] [ all | clean | install | uninstall | test | file ... | target ... ] DESCRIPTION The mbld tool takes as input a list of Myrddin or assembly sources, and compiles them in the correct dependency order into either a library, or an executable. By default, it reads from an input file called bld.proj, but if given the option -b or -l, it will build a binary or library, respectively, from the arguments specified on the command lines. Mbld will default to building for the current architecture and operating system. OPTIONS -h | -? Print a summary of the available options. -b binname Compile source into a binary named name. If neither this option nor the -l option are given, mbld will create a binary called a.out. -I path Add path to the search path for unquoted use statments. This option does not affect the search path for local usefiles, which are always searched relative to the compiler's current working directory. Without any options, the search path defaults to /usr/include/myr. -l libname Compile source given into a library called libname.a (or the equivalent for the target platform), and a matching usefile called name. Only static libraries are currently supported. Ignores the contents of bld.proj and bld.sub if they exist. -R src Compile source given into a binary in temporary storage, and then execute it with the command line arguments passed in. -S Tell the toolchain to generate assembly for the code being compiled as well as the .o files, as though -S was passed to 6m. -r runtime Compile a binary using the given runtime. If the run- time name given is none, then no runtime will be linked. If this option is not provided, then the default runtime in $INSTALL_ROOT/myr/lib/_myrrt.o will be used. ACTIONS Mbld already knows how to do most of the common commands. Given a file describing your project, it can build, test, clean, install, uninstall, and benchmark your code. all The all action will build all the non-test targets specified in the build file. If there are generated files included in the build, then their generation com- mands will be run. clean The clean action will remove all compiled files and non-durable generated inputs from the build direc- tories. install The install action will copy the generated sources, manpages, data files, and anything else installable into the appropriate directories for the current sys- tem. If the $DESTDIR environment variable is set, then its contexts will be prepended to the install path. uninstall The uninstall action will remove the files installed by the install action. test The test action will build the test cases, and run them. If the test case exits with a non-zero status, that is counted as a failure. If a test outputs subtest data, then this target will show the output in a pretty format. bench The bench action will build the benchmarks and run them. At the end of the run, the run statistics are shown. Benchmarks must generate output in the subtest format. list The list action lists all available targets for the build. BUILD FILES Build files contain lists of targets. Targets generally con- sist of a target type. This is usually followed by target name, an attribute list, and the list of inputs. Each Myrd- din source file may have a corresponding implicit test. If a source file foo.myr is built, then the corresponding test/foo.myr is used as the testcase for foo.myr if it exists. A typical build file may look something like: bin foo = main.myr gen-foo.myr ;; man = foo.1 ;; gen gen-foo.myr = sh -c "echo $FOO > gen-foo.myr" ;; lib foothing = lib.myr ;; The full grammar is listed below: bldfile : bldent+ bldent : "bin" target | "lib" target | "test" target | "bench" target | "gen" target | "cmd" target | "data" flist | "man" flist | "sub" flist | option option : "incpath" "=" list | "libdeps" "=" list | "testdeps" "=" list | "runtime" word | "noinst" target : name [attrs] "=" list flist : [attrs] "=" list list : name+ ";;" attrs : "{" (key [ "=" value])* "}" name : | Bin, test, and bench targets all behave in a very similar way. They all produce a single binary from a list of Myrddin sources, scraping the appropriate library dependencies and building any libraries from the local source directories. Bin targets are installed to $BASEDIR/bin when invoking mbld install. Test and bench targets built and run when invoking mbld bench. Tests are run with the working direc- tory set to the directory that contains the test source Lib targets also resemble bin targets, but instead of pro- ducing a binary, they produce a .use and .a file pair. These files are installed to $BASEDIR/lib/myr when invoking mbld install. Gen and cmd targets are also similar to each other, varying largely in when and how they are invoked. Gen targets specify an output file, and are run in response to a target requiring their output. On the other targets are not invoked implicitly at all, unless they have an attribute such as test or bench. Instead, they are invoked explicitly by the user, bundling up some useful command or another, possibly providing system specific variants. Data targets allow the specification of bundled static data. This data may be generated from a gen target, or may simply be shipped as a file. The data is installed to the system specific share directory. For example, on Unix, this may be $BASEDIR/share. Man targets are installed to the system-appropriate manual directory. The section is determined by the manpage suffix. For example foo.1 would be installed into section 1 of the manual. Sub targets include a bld.sub or bld.proj from a subdirec- tory. If the file in the subdirectory is bld.proj then the root of the project is changed for that subbuild. ATTRIBUTES Many targets support attributes. These are the valid attri- butes allowed in the targets. ldscript Link the target using an ldscript. This is a system dependent option, and should be avoided. Valid on binary targets. runtime Link the target using a custom runtime. Valid on binary targets inc=path Add a path to the include path. Valid on binary tar- gets. tag=tagname Build this target only when the build tag tagname is specified. inst Install this target. This is the default for all non- test targets. noinst Do not install this target when running mbld install. test This target should run as a test. This is how command targets are turned into test runners. bench This target is run as a benchmark. This is how command targets are turned into benchmark runners. notest This target is not to be run as a benchmark. It's par- ticularly fun to use in conjunction with test targets, in spite of being spectacularly useless. durable The file generated by this gen or cmd target should not be removed with mbld clean. This is useful for keeping around files where the user may not have or want to run the generation code. dep=path Specifies that a gen or cmd target should be re-run when the argument changes. path=path When specified on a data target, provides the desired installation directory. Defaults to $BASEDIR/share. FILES bld.proj The root project file. All paths in bldfiles are rela- tive to the most recent one in the directory heirarchy. bld.sub A sub build. This contains targets, and may specify dependencies on other targets within the same project. EXAMPLE mbld The command above will load bld.proj and all associated sub builds, and run the commands to incrementally rebuild the code. mbld -l foo bar.myr baz.myr The command above will ignore bld.proj and produce a library named libfoo.a, consisting of the files bar.myr and baz.myr. ENVIRONMENT VARIABLES DESTDIR Prepends $DESTDIR to the installation path. For exam- ple, if the installation prefix is /amd64 and the binary path is /bin, the resulting binaries will be copied to $DESTDIR/amd64/bin on mbld install. MYR_MC Compiles the binaries with $MYR_MC instead of the default value, 6m. MYR_MUSE Merges usefiles with $MYR_MUSE instead of the default value muse. MYR_RT Links with the runtime $MYR_RT instead of the default $BASEDIR/lib/myr/_myrrt.o. SOURCES The source for mbld is available from git://git.eigenstate.org/git/ori/mc.git and lives in the mbld directory within the source tree. SEE ALSO 6m(1), muse(1), make(1), mk(1) BUGS None known. ```