Biggish refactor to break cycles; my build rules were full of them. cpm builds,

which requires top and topgen.

build.lua

@@ -5,7 +5,8 @@ vars.ackcflags = {
 	"-O"
 }
 vars.plats = {
-	"pc86"
+	"pc86",
+	"cpm",
 }
 
 installable {
@@ -15,6 +16,7 @@ installable {
 		"lang/cem/cemcom.ansi+pkg",
 		"lang/m2/comp+pkg",
 		"lang/pc/comp+pkg",
+		"plat/cpm+pkg",
 		"plat/pc86+pkg",
 		"util/ack+pkg",
 		"util/amisc+pkg",

lang/cem/cpp.ansi/build.lua

@@ -1,4 +1,5 @@
 include("util/cmisc/build.lua")
+include("util/LLgen/build.lua")
 
 local allocd_header = definerule(nil,
 	{

mach/i80/libem/build.lua

@@ -0,0 +1,8 @@
+for _, plat in ipairs(vars.plats) do
+	acklibrary {
+		name = "lib_"..plat,
+		srcs = { "./*.s" },
+		vars = { plat = plat },
+	}
+end
+

mach/i80/libend/build.lua

@@ -0,0 +1,8 @@
+for _, plat in ipairs(vars.plats) do
+	acklibrary {
+		name = "lib_"..plat,
+		srcs = { "./*.s" },
+		vars = { plat = plat },
+	}
+end
+

mach/proto/top/build.lua

@@ -0,0 +1,19 @@
+include("util/topgen/build.lua")
+
+definerule("build_top",
+	{
+		arch = { type="string" },
+	},
+	function(e)
+		local t = topgen {
+			name = e.name.."_topgen",
+			srcs = { "mach/"..e.arch.."/top/table" }
+		}
+
+		return cprogram {
+			name = e.name,
+			srcs = { "mach/proto/top/*.c", },
+			deps = { t },
+		}
+	end
+)

plat/build.lua

@@ -1,5 +1,6 @@
 include("mach/proto/as/build.lua")
 include("mach/proto/ncg/build.lua")
+include("mach/proto/top/build.lua")
 
 definerule("ackfile",
 	{
@@ -53,36 +54,6 @@ definerule("acklibrary",
 	end
 )
 
-definerule("build_plat_tools",
-	{
-		arch = { type="string" },
-		plat = { type="string" },
-	},
-	function(e)
-		local descr = "plat/"..e.plat.."/descr"
-
-		local as = build_as {
-			name = "as",
-			arch = e.arch
-		}
-
-		local ncg = build_ncg {
-			name = "ncg",
-			arch = e.arch,
-		}
-
-		return installable {
-			name = e.name,
-			map = {
-				["$(PLATDEP)/"..e.plat.."/as"] = as,
-				["$(PLATDEP)/"..e.plat.."/ncg"] = ncg,
-				["$(PLATIND)/descr/"..e.plat] = descr,
-				"util/opt+pkg",
-			}
-		}
-	end
-)
-
 definerule("build_plat_libs",
 	{
 		arch = { type="string" },
@@ -93,15 +64,13 @@ definerule("build_plat_libs",
 			name = e.name,
 			map = {
 				"lang/basic/lib+pkg_"..e.plat,
-				"lang/cem/libcc.ansi+pkg_"..e.plat,
-				"lang/m2/libm2+pkg_"..e.plat,
-				"lang/pc/libpc+pkg_"..e.plat,
+				--"lang/cem/libcc.ansi+pkg_"..e.plat,
+				--"lang/m2/libm2+pkg_"..e.plat,
+				--"lang/pc/libpc+pkg_"..e.plat,
 				["$(PLATIND)/"..e.plat.."/libem.a"] = "mach/"..e.arch.."/libem+lib_"..e.plat,
 				["$(PLATIND)/"..e.plat.."/libend.a"] = "mach/"..e.arch.."/libend+lib_"..e.plat,
-				["$(PLATIND)/"..e.plat.."/libsys.a"] = "mach/"..e.arch.."/libsys+lib_"..e.plat,
 			}
 		}
 	end
 )
 
-

plat/cpm/build-headers.lua

@@ -0,0 +1,11 @@
+include("plat/build.lua")
+
+acklibrary {
+	name = "headers",
+	hdrs = {
+		["ack/config.h"] = "./include/ack/config.h",
+		["unistd.h"] = "./include/unistd.h",
+		["cpm.h"] = "./include/cpm.h",
+	}
+}
+

plat/cpm/build-pkg.lua

@@ -0,0 +1,24 @@
+include("plat/build.lua")
+include("lang/build.lua")
+
+ackfile {
+	name = "boot",
+	srcs = { "./boot.s" },
+	vars = { plat = "cpm" }
+}
+
+build_plat_libs {
+	name = "libs",
+	arch = "i80",
+	plat = "cpm",
+}
+
+installable {
+	name = "pkg",
+	map = {
+		"+tools",
+		"+libs",
+		["$(PLATIND)/cpm/boot.o"] = "+boot"
+	}
+}
+

plat/cpm/build-tools.lua

@@ -0,0 +1,27 @@
+include("plat/build.lua")
+
+build_as {
+	name = "as",
+	arch = "i80",
+}
+
+build_ncg {
+	name = "ncg",
+	arch = "i80",
+}
+
+build_top {
+	name = "top",
+	arch = "i80",
+}
+
+return installable {
+	name = "tools",
+	map = {
+		["$(PLATDEP)/cpm/as"] = "+as",
+		["$(PLATDEP)/cpm/ncg"] = "+ncg",
+		["$(PLATDEP)/cpm/top"] = "+top",
+		["$(PLATIND)/descr/cpm"] = "./descr",
+		"util/opt+pkg",
+	}
+}

plat/pc86/build-headers.lua

@@ -0,0 +1,10 @@
+include("plat/build.lua")
+
+acklibrary {
+	name = "headers",
+	hdrs = {
+		["ack/config.h"] = "./include/ack/config.h",
+		["unistd.h"] = "./include/unistd.h",
+	}
+}
+

plat/pc86/build-pkg.lua

@@ -1,11 +1,4 @@
 include("plat/build.lua")
-include("lang/build.lua")
-
-build_plat_tools {
-	name = "tools",
-	arch = "i86",
-	plat = "pc86",
-}
 
 ackfile {
 	name = "boot",
@@ -13,14 +6,6 @@ ackfile {
 	vars = { plat = "pc86" }
 }
 
-acklibrary {
-	name = "headers",
-	hdrs = {
-		["ack/config.h"] = "./include/ack/config.h",
-		["unistd.h"] = "./include/unistd.h",
-	}
-}
-
 build_plat_libs {
 	name = "libs",
 	arch = "i86",

plat/pc86/build-tools.lua

@@ -0,0 +1,21 @@
+include("plat/build.lua")
+
+build_as {
+	name = "as",
+	arch = "i86",
+}
+
+build_ncg {
+	name = "ncg",
+	arch = "i86",
+}
+
+return installable {
+	name = "tools",
+	map = {
+		["$(PLATDEP)/pc86/as"] = "+as",
+		["$(PLATDEP)/pc86/ncg"] = "+ncg",
+		["$(PLATIND)/descr/pc86"] = "./descr",
+		"util/opt+pkg",
+	}
+}

util/topgen/build.lua

@@ -0,0 +1,43 @@
+include("util/LLgen/build.lua")
+
+llgen {
+	name = "llgen",
+	srcs = { "./*.g" }
+}
+
+cprogram {
+	name = "topgen",
+	srcs = {
+		"./*.c",
+		matching(filenamesof("+llgen"), "%.c$"),
+	},
+	deps = {
+		"+llgen",
+	}
+}
+
+definerule("topgen",
+	{
+		srcs = { type="targets" },
+	},
+	function(e)
+		-- Remember this is executed from the caller's directory; local
+		-- target names will resolve there
+
+		return normalrule {
+			name = e.name,
+			outleaves = {
+				"gen.c",
+				"gen.h",
+			},
+			ins = {
+				"util/topgen+topgen",
+				e.srcs,
+			},
+			commands = {
+				"%{ins[1]} %{ins[2]} %{dir}"
+			}
+		}
+	end
+)
+

util/topgen/main.c

@@ -22,13 +22,17 @@ char *inpfile;
 main(argc,argv) char *argv[]; {
 
     newline = 1;
-    if (argc != 2) {
-	fprintf(stderr,"Usage : %s targetoptimizerdescription\n",argv[0]);
+    if (argc != 3) {
+	fprintf(stderr,"Usage : %s targetoptimizerdescription outputdir\n",argv[0]);
 	exit(1);
     }
     if ((input = fopen(argv[1],"r")) == NULL) {
 	fprintf(stderr,"Fatal error : couldn't open %s\n",argv[1]);
 	exit(1);
+    }
+	if (chdir(argv[2]) != 0) {
+	fprintf(stderr,"Fatal error : couldn't chdir to %s\n",argv[2]);
+	exit(1);
     }
     if ((genc = fopen("gen.c","w")) == NULL) {
 	fputs("Fatal error : couldn't open gen.c\n",stderr);