shithub: mc

ref: 9b51700784b0b76155ad10591b9c224cf80cf3a6
dir: /build.myr/

View raw version
use std

use "config.use"
use "deps.use"
use "opts.use"
use "parse.use"
use "types.use"
use "util.use"
use "subdir.use"

pkg bld =
	const buildall	: (p : parser# -> bool)
	const test	: (p : parser# -> bool)
	const build	: (p : parser#, target : byte[:] -> bool)
	const buildbin	: (bin : byte[:], inputs : byte[:][:], ldscript : byte[:], rt : byte[:] -> void)
	const buildlib	: (lib : byte[:], inputs : byte[:][:] -> void)
;;

const buildall = {p
	for t in p.targs
		match t
		| `Bin [.name=bin, .inputs=leaves, .ldscript=lds, .runtime=rt]:
			buildbin(bin, leaves, lds, rt)
		| `Lib [.name=lib, .inputs=leaves]:
			buildlib(lib, leaves)
		| `Sub subs:
			subdirs(p, subs, `std.None)
		| `Man m:
			/* nothing needed */
		;;
	;;
	-> true
}

const test = {p
	std.fatal(1, "testing not yet supported\n")
	-> false
}

const build = {p, targ
	var built

	built = false
	for t in p.targs
		match t
		| `Bin [.name=bin, .inputs=leaves, .ldscript=lds, .runtime=rt]:
			if std.sleq(bin, targ)
				buildbin(bin, leaves, lds, rt)
				built = true
			;;
		| `Lib [.name=lib, .inputs=leaves]:
			if std.sleq(lib, targ)
				buildlib(lib, leaves)
				built = true
			;;
		| `Sub subs:
			subdirs(p, subs, `std.Some targ)
		| `Man m:
			/* nothing needed */
		;;
	;;
	if !built
		std.fatal(1, "%s: no such target\n", targ)
	;;
	-> built
}

const buildbin = {bin, inputs, ldscript, rt
	var dg
	var built

	if !myrdeps(&dg, bin, inputs, false)
		std.fatal(1, "Could not load dependencies for %s\n", bin)
	;;
	match std.htget(dg.deps, bin)
	| `std.Some deps:
		built = false
		for d in deps
			if builddep(&dg, d, bin)
				built = true
			;;
		;;
		if built
			linkbin(&dg, bin, inputs, ldscript, rt)
		;;
	| `std.None:
		std.fatal(1, "No such binary %s\n", bin)
	;;
}

const buildlib = {lib, inputs
	var dg
	var built

	if !myrdeps(&dg, lib, inputs, true)
		std.fatal(1, "Could not load dependencies for %s\n", lib)
	;;
	match std.htget(dg.deps, lib)
	| `std.Some deps:
		built = false
		for d in deps
			if builddep(&dg, d, lib)
				built = true
			;;
		;;
		if built
			archivelib(&dg, lib, inputs)
		;;
	| `std.None:
		std.fatal(1, "No such library %s\n", lib)
	;;
}

const builddep = {dg, dep, out
	var freshdep

	freshdep = true
	match std.htget(dg.deps, dep)
	| `std.Some deps:
		for d in deps
			builddep(dg, d, dep)
			if !isfresh(d, out)
				freshdep = false
			;;
		;;
	| `std.None:
	;;

	if freshdep && isfresh(dep, out)
		-> false
	;;
	if std.hassuffix(dep, ".myr")
		run(["6m", dep][:], "")
	;;
	-> true
}

const linkbin = {dg, bin, srcfiles, ldscript, rt
	var cmd
	var obj

	cmd = [][:]

	/* ld -o bin */
	cmd = std.slpush(cmd, std.sldup("ld"))
	cmd = std.slpush(cmd, std.sldup("-o"))
	cmd = std.slpush(cmd, std.sldup(bin))

	/* [-T script] */
	if ldscript.len > 0
		cmd = std.slpush(cmd, std.sldup("-T"))
		cmd = std.slpush(cmd, std.sldup(ldscript))
	;;

	if rt.len != 0
		cmd = std.slpush(cmd, std.sldup(rt))
	else
		cmd = std.slpush(cmd, std.fmt("%s/%s", opt_instroot, "/lib/myr/_myrrt.o"))
	;;

	/* input.o list.o... */
	for f in srcfiles
		if std.hassuffix(f, ".myr")
			obj = swapsuffix(f, ".myr", ".o")
		elif std.hassuffix(f, ".s")
			obj = swapsuffix(f, ".s", ".o")
		else
			std.fatal(1, "unknown file type for %s\n", f)
			;;
		cmd = std.slpush(cmd, obj)
	;;

	/* -l lib... */
	cmd = addlibs(cmd, dg.libs)

	/* -L incpath... */
	for inc in opt_incpaths
		cmd = std.slpush(cmd, std.fmt("-L%s", inc))
	;;
	cmd = std.slpush(cmd, std.fmt("-L%s%s", opt_instroot, "/lib/myr"))

	/* special for OSX: it warns if we don't add this */
	if std.sleq(opt_sys, "osx")
		cmd = std.slpush(cmd, std.sldup("-macosx_version_min"))
		cmd = std.slpush(cmd, std.sldup("10.6"))
	;;

	run(cmd, "")
	strlistfree(cmd)
}

const archivelib = {dg, lib, files
	var cmd
	var obj

	cmd = [][:]
	cmd = std.slpush(cmd, std.sldup("ar"))
	cmd = std.slpush(cmd, std.sldup("-rcs"))
	cmd = std.slpush(cmd, std.fmt("lib%s.a", lib))
	for f in files
		if std.hassuffix(f, ".myr")
			obj = swapsuffix(f, ".myr", ".o")
		elif std.hassuffix(f, ".s")
			obj = swapsuffix(f, ".s", ".o")
		else
			std.fatal(1, "unknown file type for %s\n", f)
		;;
		cmd = std.slpush(cmd, obj)
	;;
	run(cmd, "")
	strlistfree(cmd)
}



const addlibs = {cmd, libgraph
	var looped : std.htab(byte[:], bool)#
	var marked : std.htab(byte[:], bool)#
	var libs
	var head

	libs = std.htkeys(libgraph)
	looped = std.mkht(std.strhash, std.streq)
	marked = std.mkht(std.strhash, std.streq)
	head = cmd.len
	for lib in libs
		cmd = visit(cmd, head, libgraph, lib, looped, marked)
	;;
	-> cmd
}

const visit = {cmd, head, g, lib, looped, marked -> byte[:][:]
	if std.hthas(looped, lib)
		std.fatal(1, "cycle in library graph involving \"%s\"\n", lib)
	elif std.hthas(marked, lib)
		-> cmd
	;;

	std.htput(looped, lib, true)
	for dep in std.htgetv(g, lib, [][:])
		cmd = visit(cmd, head, g, dep, looped, marked)
	;;
	std.htdel(looped, lib)
	std.htput(marked, lib, true)
	-> std.slput(cmd, head, std.fmt("-l%s", lib))
}

const isfresh = {src, dst
	var srcsb, dstsb

	if std.stat(src, &srcsb) != 0
		std.fatal(1, "could not stat %s\n", src)
	;;
	if std.stat(dst, &dstsb) != 0
		-> false
	;;
	if srcsb.mtime.sec != dstsb.mtime.sec
		-> srcsb.mtime.sec < dstsb.mtime.sec
	else
		-> srcsb.mtime.nsec < dstsb.mtime.nsec
	;;
}