From 9be654111a2117f823fb841f5d19fd94f5c8c5ed Mon Sep 17 00:00:00 2001
From: P. J. McDermott <pjm@nac.net>
Date: Fri, 06 Jan 2012 06:30:05 -0500
Subject: Add OS architecture notes.

---
(limited to 'architecture-notes.txt')

diff --git a/architecture-notes.txt b/architecture-notes.txt
new file mode 100644
index 0000000..8f03a34
--- /dev/null
+++ b/architecture-notes.txt
@@ -0,0 +1,27 @@
+four things will affect general binary compatibility:
+	CPU architecture and vendor
+		initial options:
+			i486-pc (generic IA-32 PCs)
+			x86_64-pc (generic AMD64 or Intel 64 PCs)
+			arm*-* (some ARM device)
+		planned future options:
+			mips*-*
+			powerpc*-*
+	kernel
+		initial options:
+			linux
+				different hardware targets will be built with different configs
+		planned future options:
+			knetbsd
+	system libraries
+		initial options:
+			eglibc
+				portable C/C++ library: works with almost any kernel
+				optimized for speed rather than for space (big and fast)
+		planned future options:
+			uclibc*
+				different configurations of uClibc can be ABI-incompatible
+				only works with Linux
+				optimized for space rather than for speed (small and slow)
+example architecture string:
+	x86_64-pc-linux-eglibc
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