Commit Graph

13 Commits

Author SHA1 Message Date
Brandon Bergren
6d515b0cc7 powerpc: Kernel fixes for ppc32 and powerpcspe w/ lld
Fix wrong section ordering that was causing a ".got is not contiguous with
other relro sections" lld error. This also brings ldscript.powerpc and
ldscript.powerpcspe closer to ldscript.powerpc64.

Also, remove unnecessary text relocs from the ppc32 AIM trap code.

Approved by: jhibbits (mentor)
Differential Revision: https://reviews.freebsd.org/D22349
2019-11-14 04:34:17 +00:00
Ed Maste
74cd06b42e Expose the kernel's build-ID through sysctl
After our migration (of certain architectures) to lld the kernel is built
with a unique build-ID.  Make it available via a sysctl and uname(1) to
allow the user to identify their running kernel.

Submitted by:	Ali Mashtizadeh <ali_mashtizadeh.com>
MFC after:	2 weeks
Relnotes:	Yes
Event:		Waterloo Hackathon 2019
Differential Revision:	https://reviews.freebsd.org/D20326
2019-06-04 13:07:10 +00:00
Ed Maste
45eff3df96 remove CONSTRUCTORS from kernel linker scripts
The linker script CONSTRUCTORS keyword is only meaningful "when linking
object file formats which do not support arbitrary sections, such as
ECOFF and XCOFF"[1] and is ignored for other object file formats.

LLVM's lld does not yet accept (and ignore) CONSTRUCTORS, so just remove
CONSTRUCTORS from the linker scripts as it has no effect.

[1] https://sourceware.org/binutils/docs/ld/Output-Section-Keywords.html

Reviewed by:	kib
Sponsored by:	The FreeBSD Foundation
Differential Revision:	https://reviews.freebsd.org/D7343
2016-07-28 13:54:46 +00:00
Nathan Whitehorn
bb80825435 Refactor PowerPC (especially AIM) init sequence to be less baroque.
MFC after:	2 months
2015-01-18 18:32:43 +00:00
Baptiste Daroussin
66c8095956 Rename elf*-powerpc into elf*-powerpc-freebsd in binutils
The powerpc support was the only supported architecture not prepending the elf format name
with "-freebsd" in base this change makes it consistent with other architectures.
On newer version of binutils the powerpc format is also prepended with "-freebsd".

Also modify the kernel ldscripts in that regards.

As a result it is now possible cross build the kernel on powerpc using newer binutils

Differential Revision:	https://reviews.freebsd.org/D926
Differential Revision:	https://reviews.freebsd.org/D928
2014-10-10 06:24:09 +00:00
Warner Losh
6ba63f2d8c In fact, we don't need any of these __DYNAMIC. it is a.out leftover and commented out. 2011-01-20 19:24:50 +00:00
Marcel Moolenaar
8678a43066 Avoid hardcoding the kernel link address in the linker script.
Use KERNBASE instead. While here, move the text sections
forward to the beginning of the text segment.
2008-02-27 00:03:23 +00:00
Mark Peek
f379be7abf Page align the data segment. 2001-10-08 10:43:34 +00:00
Benno Rice
c585bae1c2 The final commit for the first phase of PowerPC support.
This adds the config stuff needed to build kernels.

Reviewed by:	obrien
2001-06-17 09:39:44 +00:00
Peter Wemm
d0e12656b8 Add $FreeBSD$
Make the alpha linker script more like the i386 version - delete the
/usr/local and egcs directories
2000-01-11 15:35:16 +00:00
Doug Rabson
8a7b91802a Lots of changes, including:
* Support for AlphaStation 200, 250, 255, 400
* Untested support for UDB, Multia, AXPpci33 (Noname)
* Support for Personal Workstation 433a/433au, 500a/500au, 600a/600au (Miata)
* Some minor fixes and improvements to interrupt handling.

Submitted by: Andrew Gallatin <gallatin@cs.duke.edu> (AS200, Miata)
Obtained from: NetBSD (some code for AS200, Miata, Noname)
1998-08-10 07:53:59 +00:00
Doug Rabson
82153dc247 Change load address to 0xfffffc0000300000 to help support AS200. 1998-07-30 08:12:14 +00:00
Doug Rabson
28c3132268 Linker script for alpha kernel. 1998-07-15 19:19:24 +00:00