From 45a950571d539fc8819820882f17c9eb158fdad6 Mon Sep 17 00:00:00 2001
From: David Given <dg@cowlark.com>
Date: Thu, 15 Sep 2016 23:12:03 +0200
Subject: [PATCH] Mostly add support for the experimental and largely broken
 linuxppc platform. (Doesn't quite build.)

--HG--
branch : dtrg-experimental-powerpc-branch
---
 build.lua                       |  1 +
 mach/powerpc/libem/build.lua    | 14 ++++++++++++++
 mach/powerpc/libend/build.lua   |  8 ++++++++
 plat/linuxppc/build-pkg.lua     | 25 +++++++++++++++++++++++++
 plat/linuxppc/build-tools.lua   | 21 +++++++++++++++++++++
 plat/linuxppc/descr             | 24 ++++++++++++------------
 plat/linuxppc/include/build.lua | 24 ++++++++++++++++++++++++
 plat/linuxppc/libsys/build.lua  | 16 ++++++++++++++++
 8 files changed, 121 insertions(+), 12 deletions(-)
 create mode 100644 mach/powerpc/libem/build.lua
 create mode 100644 mach/powerpc/libend/build.lua
 create mode 100644 plat/linuxppc/build-pkg.lua
 create mode 100644 plat/linuxppc/build-tools.lua
 create mode 100644 plat/linuxppc/include/build.lua
 create mode 100644 plat/linuxppc/libsys/build.lua

diff --git a/build.lua b/build.lua
index b5de879c8..05a4eafcd 100644
--- a/build.lua
+++ b/build.lua
@@ -8,6 +8,7 @@ vars.plats = {
 	"cpm",
 	"linux386",
 	"linux68k",
+	"linuxppc",
 	"pc86",
 	"rpi",
 }
diff --git a/mach/powerpc/libem/build.lua b/mach/powerpc/libem/build.lua
new file mode 100644
index 000000000..d17adcd92
--- /dev/null
+++ b/mach/powerpc/libem/build.lua
@@ -0,0 +1,14 @@
+for _, plat in ipairs(vars.plats) do
+	acklibrary {
+		name = "lib_"..plat,
+		srcs = {
+			"./*.s",
+			"./*.c"
+		},
+		vars = { plat = plat },
+		deps = {
+			"h+emheaders"
+		}
+	}
+end
+
diff --git a/mach/powerpc/libend/build.lua b/mach/powerpc/libend/build.lua
new file mode 100644
index 000000000..ca5a13c65
--- /dev/null
+++ b/mach/powerpc/libend/build.lua
@@ -0,0 +1,8 @@
+for _, plat in ipairs(vars.plats) do
+	acklibrary {
+		name = "lib_"..plat,
+		srcs = { "./*.s" },
+		vars = { plat = plat },
+	}
+end
+
diff --git a/plat/linuxppc/build-pkg.lua b/plat/linuxppc/build-pkg.lua
new file mode 100644
index 000000000..cac205ea3
--- /dev/null
+++ b/plat/linuxppc/build-pkg.lua
@@ -0,0 +1,25 @@
+include("plat/build.lua")
+
+ackfile {
+	name = "boot",
+	srcs = { "./boot.s" },
+	vars = { plat = "linuxppc" }
+}
+
+build_plat_libs {
+	name = "libs",
+	arch = "powerpc",
+	plat = "linuxppc",
+}
+
+installable {
+	name = "pkg",
+	map = {
+		"+tools",
+		"+libs",
+		"./include+pkg",
+		["$(PLATIND)/linuxppc/boot.o"] = "+boot",
+        ["$(PLATIND)/linuxppc/libsys.a"] = "./libsys+lib",
+	}
+}
+
diff --git a/plat/linuxppc/build-tools.lua b/plat/linuxppc/build-tools.lua
new file mode 100644
index 000000000..4d0f0048d
--- /dev/null
+++ b/plat/linuxppc/build-tools.lua
@@ -0,0 +1,21 @@
+include("plat/build.lua")
+
+build_as {
+	name = "as",
+	arch = "powerpc",
+}
+
+build_ncg {
+	name = "ncg",
+	arch = "powerpc",
+}
+
+return installable {
+	name = "tools",
+	map = {
+		["$(PLATDEP)/linuxppc/as"] = "+as",
+		["$(PLATDEP)/linuxppc/ncg"] = "+ncg",
+		["$(PLATIND)/descr/linuxppc"] = "./descr",
+		"util/opt+pkg",
+	}
+}
diff --git a/plat/linuxppc/descr b/plat/linuxppc/descr
index 69b00fbc5..b70680201 100644
--- a/plat/linuxppc/descr
+++ b/plat/linuxppc/descr
@@ -35,25 +35,26 @@ var C_INCLUDES=-I{PLATFORMDIR}/include -I{EM}/share/ack/include/ansi
 name be
 	from .m.g
 	to .s
-	program {EM}/lib/ack/{ARCH}/ncg
+	program {EM}/lib/ack/{PLATFORM}/ncg
 	mapflag -gdb GF=-gdb
 	args {GF?} <
 	stdout
 	need .e
 end
-name asopt
-	from .s
-	to .so
-	program {EM}/lib/ack/{ARCH}/top
-	args
-	optimizer
-	stdin
-	stdout
-end
+# FIXME(dtrg): not working yet
+#name asopt
+#	from .s
+#	to .so
+#	program {EM}/lib/ack/{PLATFORM}/top
+#	args
+#	optimizer
+#	stdin
+#	stdout
+#end
 name as
 	from .s.so
 	to .o
-	program {EM}/lib/ack/{ARCH}/as
+	program {EM}/lib/ack/{PLATFORM}/as
 	args - -o > <
 	prep cond
 end
@@ -74,7 +75,6 @@ name led
 		(.mod:{TAIL}={PLATFORMDIR}/libmodula2.a) \
 		(.ocm:{TAIL}={PLATFORMDIR}/liboccam.a) \
 		(.ocm.b.mod.c.p:{TAIL}={PLATFORMDIR}/libc.a) \
-		{PLATFORMDIR}/liblinux.a \
 		{PLATFORMDIR}/libem.a \
 		{PLATFORMDIR}/libsys.a \
 		{PLATFORMDIR}/libend.a
diff --git a/plat/linuxppc/include/build.lua b/plat/linuxppc/include/build.lua
new file mode 100644
index 000000000..27325b43d
--- /dev/null
+++ b/plat/linuxppc/include/build.lua
@@ -0,0 +1,24 @@
+include("plat/build.lua")
+
+headermap = {}
+packagemap = {}
+
+local function addheader(h)
+	headermap[h] = "./"..h
+	packagemap["$(PLATIND)/linuxppc/include/"..h] = "./"..h
+end
+
+addheader("ack/config.h")
+addheader("sys/ioctl.h")
+addheader("unistd.h")
+
+acklibrary {
+	name = "headers",
+	hdrs = headermap
+}
+
+installable {
+	name = "pkg",
+	map = packagemap
+}
+
diff --git a/plat/linuxppc/libsys/build.lua b/plat/linuxppc/libsys/build.lua
new file mode 100644
index 000000000..e74f3f416
--- /dev/null
+++ b/plat/linuxppc/libsys/build.lua
@@ -0,0 +1,16 @@
+acklibrary {
+    name = "lib",
+    srcs = {
+        "./*.s",
+        "plat/linux/libsys/*.c",
+        "plat/linux/libsys/*.s",
+    },
+	deps = {
+		"lang/cem/libcc.ansi/headers+headers",
+		"plat/linuxppc/include+headers",
+	},
+    vars = {
+        plat = "linuxppc"
+    }
+}
+