Revamp base system packaging of kernels to enable up/smp selection

at runtime and to support distributing additional kernels:
o remove kernel from the base tarball
o add new kernel tarballs
o build + package both SMP and GENERIC kernels when an <arch>/conf/SMP
  config file is present
o add sysinstall support for multiple kernels
o update sysinstall to probe for the number of cpus on a system
  and auto-select smp/up kernel accordingly
o add a post-kernels install hook to fixup /boot/kernel
o add -ldevinfo to boot crunch for sysinstall's cpu probing logic

Notes:
1. On HEAD this code is not currently used because GENERIC kernels
   include SMP.  This work is mainly intended for RELENG_6 where the
   GENERIC kernel is UP.  If HEAD changes to match then just enable
   WITH_SMP in sysinstall/Makefile.
2. The cpu probing support is done with acpi and MPTable; this means
   some systems will require work for auto-detection to work.
3. The handling of /boot/kernel may need to be revisited; for now
   we rename one kernel at the last moment (SMP if installed, otherwise
   GENERIC).  There are other, possibly better, approaches.

Lots of help from ru, emaste, scottl, and jhb.

1 files changed, 47 insertions, 1 deletions

diff --git a/usr.sbin/sysinstall/menus.c b/usr.sbin/sysinstall/menus.c
index 767909f..6147313 100644
--- a/usr.sbin/sysinstall/menus.c
+++ b/usr.sbin/sysinstall/menus.c
@@ -57,6 +57,22 @@ clearSrc(dialogMenuItem *self)
 }
 
 static int
+setKernel(dialogMenuItem *self)
+{
+    Dists |= DIST_KERNEL;
+    KernelDists = DIST_KERNEL_ALL;
+    return DITEM_SUCCESS | DITEM_REDRAW;
+}
+
+static int
+clearKernel(dialogMenuItem *self)
+{
+    Dists &= ~DIST_KERNEL;
+    KernelDists = 0;
+    return DITEM_SUCCESS | DITEM_REDRAW;
+}
+
+static int
 setX11Misc(dialogMenuItem *self)
 {
     XOrgDists |= DIST_XORG_MISC_ALL;
@@ -160,7 +176,8 @@ checkDistEverything(dialogMenuItem *self)
 {
     return Dists == DIST_ALL &&
 	_IS_SET(SrcDists, DIST_SRC_ALL) &&
-	_IS_SET(XOrgDists, DIST_XORG_ALL);
+	_IS_SET(XOrgDists, DIST_XORG_ALL) &&
+	_IS_SET(KernelDists, DIST_KERNEL_ALL);
 }
 
 static int
@@ -181,6 +198,12 @@ x11FlagCheck(dialogMenuItem *item)
 }
 
 static int
+kernelFlagCheck(dialogMenuItem *item)
+{
+    return KernelDists;
+}
+
+static int
 checkTrue(dialogMenuItem *item)
 {
     return TRUE;
@@ -965,6 +988,8 @@ DMenu MenuSubDistributions = {
 	NULL, distReset, NULL, NULL, ' ', ' ', ' ' },
       { " base",	"Binary base distribution (required)",
 	dmenuFlagCheck,	dmenuSetFlag, NULL, &Dists, '[', 'X', ']', DIST_BASE },
+      { " kernels",	"Binary kernel distributions (required)",
+	kernelFlagCheck,distSetKernel },
       { " dict",	"Spelling checker dictionary files",
 	dmenuFlagCheck,	dmenuSetFlag, NULL, &Dists, '[', 'X', ']', DIST_DICT },
       { " doc",		"Miscellaneous FreeBSD online docs",
@@ -994,6 +1019,27 @@ DMenu MenuSubDistributions = {
       { NULL } },
 };
 
+DMenu MenuKernelDistributions = {
+    DMENU_CHECKLIST_TYPE | DMENU_SELECTION_RETURNS,
+    "Select the operating system kernels you wish to install.",
+    "Please check off those kernels you wish to install.\n",
+    NULL,
+    NULL,
+    { { "X Exit", "Exit this menu (returning to previous)",
+	checkTrue, dmenuExit, NULL, NULL, '<', '<', '<' },
+      { "All",		"Select all of the below",
+	NULL,		setKernel, NULL, NULL, ' ', ' ', ' ' },
+      { "Reset",	"Reset all of the below",
+	NULL,		clearKernel, NULL, NULL, ' ', ' ', ' ' },
+      { " GENERIC",	"GENERIC kernel configuration",
+	dmenuFlagCheck,	dmenuSetFlag, NULL, &KernelDists, '[', 'X', ']', DIST_KERNEL_GENERIC },
+#ifdef WITH_SMP
+      { " SMP",		"GENERIC symmetric multiprocessor kernel configuration",
+	dmenuFlagCheck,	dmenuSetFlag,	NULL, &KernelDists, '[', 'X', ']', DIST_KERNEL_SMP },
+#endif
+      { NULL } },
+};
+
 DMenu MenuSrcDistributions = {
     DMENU_CHECKLIST_TYPE | DMENU_SELECTION_RETURNS,
     "Select the sub-components of src you wish to install.",