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thorpej 1268b2dbc5 Add an x86_initialize_trampoline() function, similar to GCC 3.3, 
change INITIALIZE_TRAMPOLINE() to use it, and apply the following
patch to it (which I have already submitted to GCC 3.3):

	* config/i386/i386.c (x86_initialize_trampoline): Emit a call
	to __enable_execute_stack with the address of the trampoline
	if TRANSFER_FROM_TRAMPOLINE is defined.

Define a TRANSFER_FROM_TRAMPOLINE suitable for NetBSD targets, to enable
stack execution on target machines which can separate exec permissions for
a region:

	* config/netbsd.h (NETBSD_ENABLE_EXECUTE_STACK): Define.
	* config/alpha/netbsd.h (TRANSFER_FROM_TRAMPOLINE): Define
	as NETBSD_ENABLE_EXECUTE_STACK.
	* config/i386/netbsd-elf.h (TRANSFER_FROM_TRAMPOLINE): Ditto.
	* config/i386/netbsd.h (TRANSFER_FROM_TRAMPOLINE): Ditto.
	* config/sparc/netbsd-elf-common.h (TRANSFER_FROM_TRAMPOLINE): Ditto.
	* config/sparc/netbsd.h (TRANSFER_FROM_TRAMPOLINE): Ditto.

(A similar patch will be submitted to GCC 3.3.)
2002-10-18 16:23:47 +00:00
..
dist Add an x86_initialize_trampoline() function, similar to GCC 3.3, 2002-10-18 16:23:47 +00:00
lib Remove more old toolchain bits. 2002-09-17 23:24:52 +00:00
libexec - use NETBSDSRCDIR as appropriate 2002-09-19 03:09:31 +00:00
usr.bin Flip the pax switch 2002-10-16 15:23:59 +00:00
usr.sbin add missnig -I to gnu/dist/mrouted, which is needed by gcc 3.2 2002-10-17 12:50:00 +00:00
Makefile Use @true instead of @${TRUE} in includes-foo targets, since there is no 2001-10-12 21:05:08 +00:00
README Remove completely outdated maintenance history, and add proper NetBSD RCS tag. 2002-09-22 09:47:56 +00:00

README 

$NetBSD: README,v 1.4 2002/09/22 09:47:56 wiz Exp $

Organization of Sources:

This directory hierarchy is using a new organization that
separates the GNU sources from the BSD-style infrastructure
used to build the GNU sources.  The GNU sources are kept in
the standard GNU source tree layout under:

	dist/*

The build infrastructure uses the normal BSD way under:

	lib/*
	usr.bin/*

The makefiles in the above hierarchy will "reach over" into
the GNU sources (src/gnu/dist) for everything they need.


Maintenance Strategy:

The sources under src/gnu/dist are generally a combination of
some published distribution plus changes that we submit to the
maintainers and that are not yet published by them.  There are
a few files that are never expected to be submitted to the FSF,
(i.e. BSD-style makefiles and such) and those generally should
stay in src/gnu/lib or src/gnu/usr.bin (the BSD build areas).

Make sure all changes made to the GNU sources are submitted to
the appropriate maintainer, but only after coordinating with the
NetBSD maintainers by sending your proposed submission to the
<tech-toolchain@netbsd.org> mailing list.  Only send the changes
to the third-party maintainers after consensus has been reached.