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9 Commits

Author SHA1 Message Date
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
Andrew Turner
979d76c948 Remove STARTUP_PAGETABLE_ADDR from the ARM configs and replace it with 
memory at the end of the kernel.

This helps reduce the SoC and board specific configuration required.

Reviewed by:	bsdimp
Tested by:	jmg (armeb), br
 2014-01-28 09:12:04 +00:00
Andrew Turner
67727fbfce Correctly align the unwind tables. Without this clang may incorrectly align 
them causing an alignment fault when producing a backtrace.
 2013-03-10 00:47:19 +00:00
Andrew Turner
b56c0c673a When DDB is enabled and we are building for the ARM EABI include the unwind 
tables in the kernel.
 2013-01-19 22:08:16 +00:00
Oleksandr Tymoshenko
e38aad0ed9 Get rid of ARM_BIG_ENDIAN for good: 
- remove leftovers in Makefile.arm
  - Let ld use default output format instead of providing one in ldscript
 2012-08-21 23:44:47 +00:00
Olivier Houchard
f5a9ac9ca4 Create a non-elf pure binary version of the kernel as well. 2005-11-24 02:25:49 +00:00
Olivier Houchard
c60e48e2b6 Use the address provided in the conf file, instead of hardcode 0xc0000000. 2004-09-23 22:52:55 +00:00
Olivier Houchard
78b36e3ca5 Add config magic for arm. 2004-05-14 11:49:40 +00:00