Added linux386 platform.

plat/linux386/boot.s

@@ -0,0 +1,40 @@
+#
+! $Source$
+! $State$
+! $Revision$
+
+! Declare segments (the order is important).
+
+.sect .text
+.sect .rom
+.sect .data
+.sect .bss
+
+.sect .text
+
+begtext:
+	! This code is placed at the beginning of the ELF executable and is the
+	! first thing that runs.
+
+	jmp __m_a_i_n
+	
+	! This provides an emergency exit routine used by EM.
+	
+.define EXIT
+.extern EXIT
+EXIT:
+	push 1
+	jmp __exit
+	
+! Define symbols at the beginning of our various segments, so that we can find
+! them. (Except .text, which has already been done.)
+
+.sect .data;       begdata:
+.sect .rom;        begrom:
+.sect .bss;        begbss:
+
+! Some magic data. All EM systems need these.
+
+.define .trppc, .ignmask
+.comm .trppc, 4
+.comm .ignmask, 4