Commit Graph

301 Commits

Author SHA1 Message Date
Eric van Gyzen
fac6dee9eb Remove tests for obsolete compilers in the build system
Assume gcc is at least 6.4, the oldest xtoolchain in the ports tree.
Assume clang is at least 6, which was in 11.2-RELEASE.  Drop conditions
for older compilers.

Reviewed by:	imp (earlier version), emaste, jhb
MFC after:	2 weeks
Sponsored by:	Dell EMC Isilon
Differential Revision:	https://reviews.freebsd.org/D24802
2020-05-12 15:22:40 +00:00
John Baldwin
1207cda961 Compile hack.c with normal CFLAGS + -shared -nostdlib.
Originally, hack.c was compiled into a shard object with just -shared
-nostdlib.  This assumed that ${CC} did not require any additional
flags for ABIs, cross-building, etc.

When kern.post.mk was created in r89509 by reducing duplication in
kernel Makefile.<arch> files, the -shared flag was moved into a
HACK_EXTRA_FLAGS variable so that sparc64 could override it with
-Wl,-shared.  The sparc64 hack was removed in r111650, but
HACK_EXTRA_FLAGS was left in place.  Over time, we have started
support toolchains that require flags to support alternate ABIs on
MIPS and PowerPC and started (ab)using HACK_EXTRA_FLAGS to set only
those flags.

I need to fix risc-v to pass -mno-relax to the hack.c build for lld in
llvm 10, and the patches to support cross-build from non-FreeBSD hosts
need to include -target for clang in CFLAGS for hack.c.  Rather than
adding more hacks into HACK_EXTRA_FLAGS, just use the full set of
CFLAGS with hack.c.

Reviewed by:	kib, arichardson
MFC after:	1 month
Sponsored by:	DARPA
Differential Revision:	https://reviews.freebsd.org/D23362
2020-01-26 14:19:08 +00:00
Brandon Bergren
e99c4e4d64 [PowerPC] Clang powerpcspe build fixes
* Fix a couple of format errors.
* Add some extra compiler flags needed to force clang to build SPE code.
  (These are temporary until the target triple is fixed)
2019-12-27 05:01:13 +00:00
Brandon Bergren
ab3f2a3861 Add support for building Book-E kernels with clang/lld.
This involved several changes:

* Since lld does not like text relocations, replace SMP boot page text relocs
in booke/locore.S with position-independent math, and track the virtual base
in the SMP boot page header.

* As some SPRs are interpreted differently on clang due to the way it handles
platform-specific SPRs, switch m*dear and m*esr mnemonics out for regular
m*spr. Add both forms of SPR_DEAR to spr.h so the correct encoding is selected.

* Change some hardcoded 32 bit things in the boot page to be pointer-sized, and
fix alignment.

* Fix 64-bit build of booke/pmap.c when enabling pmap debugging.

Additionally, I took the opportunity to document how the SMP boot page works.

Approved by: jhibbits (mentor)
Differential Revision: https://reviews.freebsd.org/D21999
2019-11-02 21:15:56 +00:00
Kyle Evans
e47edf50dd Revert r336353 completely based on protest; compatibility shims incoming 2018-07-17 14:11:30 +00:00
Kyle Evans
59996cb2aa Revert 336358 and step away fron machine for the day...
VERSREQ < 7.+ physically will not work with new config(8) due to major bump,
which is why I bumped it in the first place... Back to the original version
2018-07-16 23:32:24 +00:00
Kyle Evans
78a25cc760 Partially revert r336353: sys/conf/* %VERSREQ bumps
The changes made in r335998 don't strictly require a newer config(8),
though it is advised. The %VERSREQ bumps were premature.
2018-07-16 21:53:30 +00:00
Kyle Evans
2df45ae0d0 config(8): Bump major version after r335998
config-generated hints.c/env.c from r335998 and later are incompatible with
earlier kernels due to no longer setting envmode/hintmode. A minor bump for
this is insufficient, as matching major version with a later minor version
is still viewed as backwards-compatible.

This was an MI kernel change, soo all VERSREQ's are bumped.
2018-07-16 19:05:50 +00:00
Justin Hibbits
0b58112faf Don't pass -Wa,-many through clang, the integrated as doesn't support it.
Our base binutils sets -many by default anyway, but external gcc may not do
this.

PR:	kern/215948
Submitted by:	Mark Millard <markmi AT dsl-only DOT net>
Reported by:	Mark Millard
MFC after:	2 weeks
2017-01-22 06:00:05 +00:00
Justin Hibbits
dc9b124d66 Create a new MACHINE_ARCH for Freescale PowerPC e500v2
Summary:
The Freescale e500v2 PowerPC core does not use a standard FPU.
Instead, it uses a Signal Processing Engine (SPE)--a DSP-style vector processor
unit, which doubles as a FPU.  The PowerPC SPE ABI is incompatible with the
stock powerpc ABI, so a new MACHINE_ARCH was created to deal with this.
Additionaly, the SPE opcodes overlap with Altivec, so these are mutually
exclusive.  Taking advantage of this fact, a new file, powerpc/booke/spe.c, was
created with the same function set as in powerpc/powerpc/altivec.c, so it
becomes effectively a drop-in replacement.  setjmp/longjmp were modified to save
the upper 32-bits of the now-64-bit GPRs (upper 32-bits are only accessible by
the SPE).

Note: This does _not_ support the SPE in the e500v1, as the e500v1 SPE does not
support double-precision floating point.

Also, without a new MACHINE_ARCH it would be impossible to provide binary
packages which utilize the SPE.

Additionally, no work has been done to support ports, work is needed for this.
This also means no newer gcc can yet be used.  However, gcc's powerpc support
has been refactored which would make adding a powerpcspe-freebsd target very
easy.

Test Plan:
This was lightly tested on a RouterBoard RB800 and an AmigaOne A1222
(P1022-based) board, compiled against the new ABI.  Base system utilities
(/bin/sh, /bin/ls, etc) still function appropriately, the system is able to boot
multiuser.

Reviewed By:	bdrewery, imp
Relnotes:	yes
Differential Revision:	https://reviews.freebsd.org/D5683
2016-10-22 01:57:15 +00:00
Nathan Whitehorn
5c845fde2e Make 32-bit PowerPC kernels, like 64-bit PowerPC kernels, position-independent
executables. The goal here, not yet accomplished, is to let the e500 kernel
run under QEMU by setting KERNBASE to something that fits in low memory and
then having the kernel relocate itself at runtime.
2015-03-07 20:14:46 +00:00
Nathan Whitehorn
0fa2250548 Build the powerpc64 kernel as a position-independent executable. At startup,
it processes its own ELF relocations and can be loaded and run in place at
any physical/virtual address.

NB: This requires an updated loader to boot!

Relnotes:	yes
2015-01-31 19:16:51 +00:00
Warner Losh
ab2de2d795 Bump the version of config to the latest (3 year old, so upgrade
worries are long past). Also remove redundant MACHINE= declarations
and passing MACHINE/MACHINE_ARCH to module builds. That's now done in
common code.
2014-02-04 18:24:25 +00:00
David E. O'Brien
43bb1a21f2 Remove duplication and centralize testing of various config(8)ed features. 2012-09-12 14:19:40 +00:00
David E. O'Brien
c475a3ea4d Not all Pmake derived makes quietly tolerate assignment from shell commands
with no output.  Add "echo" at the end these shell commands whose output is
assigned to a variable's value to ensure there is some output.

Submitted by:	John Van Horne <jvanhorne@juniper.net>
2012-09-12 14:17:11 +00:00
Nathan Whitehorn
b9856e92ac Add -Wa,-many to CFLAGS on PowerPC. This aids in building a kernel using
clang, which would otherwise complain about some 64-bit bridge mode
instructions.
2011-06-09 19:47:30 +00:00
Nathan Whitehorn
c3e289e1ce MFppc64:
Kernel sources for 64-bit PowerPC, along with build-system changes to keep
32-bit kernels compiling (build system changes for 64-bit kernels are
coming later). Existing 32-bit PowerPC kernel configurations must be
updated after this change to specify their architecture.
2010-07-13 05:32:19 +00:00
Rafal Jaworowski
d1d3233ebd Convert Freescale PowerPC platforms to FDT convention.
The following systems are affected:

  - MPC8555CDS
  - MPC8572DS

This overhaul covers the following major changes:

  - All integrated peripherals drivers for Freescale MPC85XX SoC, which are
    currently in the FreeBSD source tree are reworked and adjusted so they
    derive config data out of the device tree blob (instead of hard coded /
    tabelarized values).

  - This includes: LBC, PCI / PCI-Express, I2C, DS1553, OpenPIC, TSEC, SEC,
    QUICC, UART, CFI.

  - Thanks to the common FDT infrastrucutre (fdtbus, simplebus) we retire
    ocpbus(4) driver, which was based on hard-coded config data.

Note that world for these platforms has to be built WITH_FDT.

Reviewed by:	imp
Sponsored by:	The FreeBSD Foundation
2010-07-11 21:08:29 +00:00
Wojciech A. Koszek
332fd25c96 Revert config(8) version bump. It brings major pain for people working on
different versions of FreeBSD source tree.

Old config(8) can now be used unless you want to use INCLUDE_CONFIG_FILE
option.

Approved by:	imp
Reviewed by:	imp
2007-05-16 17:23:54 +00:00
Wojciech A. Koszek
9e2f7513e1 Bump config(8) version and build requirement for config(8) to 600006. This
is caused by my latest changes to config(8). You're supposed to install new
config(8) in order to prevent yourself from seeing a warning about old
version of that tool.

You should configure the kernel with a new config(8) then.

Oked by:	rwatson, cognet (mentor)
2007-05-13 02:36:41 +00:00
Warner Losh
9fe342e741 Version 600004 is better than 700000 given other changes that are in
the pipeline.  We had to bump the version for 600004 because the old
parser got confused and generated bogus output.

Approved by: ru@
2005-11-28 17:51:31 +00:00
Ruslan Ermilov
a8e06f2a52 Make config(8) understand ORed dependecies in "files*" and
improve tracking of known devices.  Bump config(8) version.
2005-11-27 21:41:58 +00:00
Warner Losh
05b5ca733b We don't bump the config version for additions to config that aren't
used in the base system.  This has been much discussed in the past
(typically people giving me a hard time for it).  Since all that was
added to config was nocpu, and since we don't use it, we don't need to
bump the version.
2005-11-04 04:14:49 +00:00
Ruslan Ermilov
acd58322c7 Implement the "nocpu" directive.
Requested by:	rwatson
2005-11-03 14:01:22 +00:00
John Baldwin
b34b3c19c6 Bump config(8) version for the DEFAULTS change. 2005-10-27 19:27:55 +00:00
David E. O'Brien
a7d30e5ffb Use the more readable empty() syntax. 2005-09-07 17:38:46 +00:00
Warner Losh
23804f1a7d Never hardcode /sys into these Makefiles. The proper way to spell it is $S.
Also, move the -I stuff to the centralized kern.pre.mk.  However, it
might be better to add these flags to files.conf.  This is a short
term fix to fix the broken builds on my machine (I don't have a valid
/sys link).
2005-04-13 14:49:57 +00:00
Vinod Kashyap
f0c1dee27f The latest release of the FreeBSD driver (twa) for
3ware's 9xxx series controllers.  This corresponds to
the 9.2 release (for FreeBSD 5.2.1) on the 3ware website.

Highlights of this release are:

1. The driver has been re-architected to use a "Common Layer"
    (all tw_cl* files), which is a consolidation of all OS-independent
    parts of the driver.  The FreeBSD OS specific portions of the
    driver go into an "OS Layer" (all tw_osl* files).
    This re-architecture is to achieve better maintainability, consistency
    of behavior across OS's, and better portability to new OS's (drivers
    for new OS's can be written by just adding an OS Layer that's specific
    to the OS, by complying to a "Common Layer Programming Interface" API.

2. The driver takes advantage of multiple processors.

3. The driver has a new firmware image bundled, the new features of which
   include Online Capacity Expansion and multi-lun support, among others.
   More details about 3ware's 9.2 release can be found here:
   http://www.3ware.com/download/Escalade9000Series/9.2/9.2_Release_Notes_Web.pdf

Since the Common Layer is used across OS's, the FreeBSD specific include
path for header files (/sys/dev/twa) is not part of the #include pre-processor
directive in any of the source files.  For being able to integrate twa into
the kernel despite this, Makefile.<arch> has been changed to add the include
path to CFLAGS.

Reviewed by: scottl
2005-04-12 22:07:11 +00:00
Warner Losh
5abe8537a0 Update version number for latest config version bump 2005-04-01 22:56:10 +00:00
John-Mark Gurney
f80d282814 bump the Makefile config versions now that config is 600001...
Forgotten by:	des
2005-02-10 21:15:31 +00:00
Peter Grehan
bd985cab34 - remove NO_MODULES since they've been working for some time
- add -fno-omit-framepointer to CFLAGS if DDB is enabled so
  backtraces will still work when optimization is enabled.
  Stolen from Makefile.amd64.
2005-02-03 06:28:17 +00:00
Ruslan Ermilov
a35d88931c For variables that are only checked with defined(), don't provide
any fake value.
2004-10-24 15:33:08 +00:00
Peter Wemm
f37a929ca1 Kill count device support from config. I've changed the last few
remaining consumers to have the count passed as an option.  This is
i4b, pc98/wdc, and coda.

Bump configvers.h from 500013 to 600000.

Remove heuristics that tried to parse "device ed5" as 5 units of the ed
device.  This broke things like the snd_emu10k1 device, which required
quotes to make it parse right.  The no-longer-needed quotes have been
removed from NOTES, GENERIC etc.  eg, I've removed the quotes from:
   device  snd_maestro
   device  "snd_maestro3"
   device  snd_mss

I believe everything will still compile and work after this.
2004-08-30 23:03:58 +00:00
Ruslan Ermilov
48aea4da66 Removed COPTS support from kmod.mk and kern.pre.mk.
COPTS support in bsd.prog.mk is preserved but discouraged.
2004-08-13 14:30:26 +00:00
Olivier Houchard
5090c98711 Change required config(8) version. 2004-05-09 22:29:38 +00:00
Andrew Gallatin
721bdb8d39 Remove duplicate script for locore.o 2003-12-09 15:48:20 +00:00
Poul-Henning Kamp
18b492fc8c Bump the config version to force people to upgrade their config(8)
so the fix for emitting multiple instances of .o files will prevent
link errors on LINT.
2003-04-15 21:29:11 +00:00
Ruslan Ermilov
5d1b6a85bc Standardize handling of locore.[sS] etc. files.
Submitted by:	jake, bde, ru
2003-02-28 21:59:14 +00:00
Peter Grehan
731df24777 - remove dead conditional CFLAG setting
- switch locore .s -> .S

Approved by:  benno
2003-01-22 01:34:10 +00:00
Peter Wemm
66422f5b7a Initiate deorbit burn for the i386-only a.out related support. Moves are
under way to move the remnants of the a.out toolchain to ports.  As the
comment in src/Makefile said, this stuff is deprecated and one should not
expect this to remain beyond 4.0-REL.  It has already lasted WAY beyond
that.

Notable exceptions:
gcc - I have not touched the a.out generation stuff there.
ldd/ldconfig - still have some code to interface with a.out rtld.
old as/ld/etc - I have not removed these yet, pending their move to ports.
some includes - necessary for ldd/ldconfig for now.

Tested on: i386 (extensively), alpha
2002-09-17 01:49:00 +00:00
Jake Burkholder
ba37958b34 Moved the rule for locore.o from kern.post.mk to Makefile.$ARCH. 2002-07-31 14:59:05 +00:00
Bruce Evans
8365569883 Moved the setting of all profiling-related variables except the key one
(PROFLEVEL) to kern.pre.mk so that it is easier to manage.  Bumped config
version to match.

Moved the check for cputype being configured to a less bogus place in
mkmakefile.c.
2002-07-13 19:36:14 +00:00
David E. O'Brien
25a157bc6c Remove the setting of 'FMT'. We now do ELF by default, so only bother
to increase the lenght of the command line if needed.  The setting of FMT
also gets in the cross bootstrapping way for new platforms.
2002-03-24 17:45:46 +00:00
Peter Wemm
7a2eb19dbf Commit some infrastructure for turning on -Werror for kernel compiles.
It doesn't actually do it yet though.  This adds a flag to config so
that we can exclude certain vendor files from this even when the rest
of the kernel has it on.  make -DNO_WERROR would also bypass all of it.
2002-02-20 23:35:56 +00:00
Peter Wemm
f6916f666c Proper fix for old config setting maxusers to 8. 2001-12-14 09:39:29 +00:00
Benno Rice
2c6c884048 -msoft-float must always be turned on when compiling the PowerPC kernel. 2001-11-12 10:12:00 +00:00
Warner Losh
3dfff24a19 Move kern.post.mk to last line, now that it appears safe 2001-11-11 20:33:02 +00:00
Warner Losh
41c8eb3039 Factor the common parts of the Makefile.foo files. This introduces two
new files: kern.pre.mk, which contains most of the definitions, and
kern.post.mk, which contains most of the rules.

I've tested this on i386 and pc98.  I have had feedback on the sparc64
port, but no reports from anybody on alpha, ia64 or powerpc.  I
appologize in advance if I've broken you.

Reviewed by: jake, jhb, arch@
2001-11-02 21:34:20 +00:00
Brian Somers
143281f43c Only overwrite ${DESTDIR}${KODIR}.old/${KERNEL_KO} if we haven't
booted from it when doing an installkernel.

Only change kern.bootfile from ${DESTDIR}${KODIR}/${KERNEL_KO}
to ${DESTDIR}${KODIR}.old/${KERNEL_KO}, and only when we're renaming
a booted ${DESTDIR}${KODIR}/${KERNEL_KO} kernel.
2001-11-01 02:17:49 +00:00
Dag-Erling Smørgrav
a4c0058691 Support the "install.debug" and "reinstall.debug" targets for kernel modules.
Small tweaks to kldxref may be necessary to avoid the surprising (but harm-
less) behaviour of 'kldload foo' loading foo.ko.debug instead of foo.ko if
it is present in the kernel directory.

Approved by:	a week of silence on -arch
MFC after:	2 weeks
2001-10-27 00:52:50 +00:00