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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
bin Increase timeouts so tests have more chances to succeed 2016-10-19 12:23:02 +00:00
cddl Fix tst.args1.c on LP64 platforms. 2016-10-16 19:50:10 +00:00
contrib Create a new MACHINE_ARCH for Freescale PowerPC e500v2 2016-10-22 01:57:15 +00:00
crypto Merge OpenSSL 1.0.2j. 2016-09-26 14:22:17 +00:00
etc swapoff: Remove only late devices with -aL. 2016-10-21 21:55:50 +00:00
gnu Create a new MACHINE_ARCH for Freescale PowerPC e500v2 2016-10-22 01:57:15 +00:00
include Define max_align_t for C11. 2016-10-21 23:50:02 +00:00
kerberos5 DIRDEPS_BUILD: Update dependencies 2016-06-14 16:55:05 +00:00
lib Create a new MACHINE_ARCH for Freescale PowerPC e500v2 2016-10-22 01:57:15 +00:00
libexec Reference the libc symbols ypresp_{allfn,data} instead of local symbols. 2016-10-16 19:12:22 +00:00
release Fix relnotes build of supported hardware list after r307529 2016-10-17 22:48:29 +00:00
rescue DIRDEPS_BUILD: Build crunchide for the host. 2016-09-01 23:52:25 +00:00
sbin swapoff: Remove only late devices with -aL. 2016-10-21 21:55:50 +00:00
secure Merge OpenSSL 1.0.2j. 2016-09-26 14:22:17 +00:00
share Create a new MACHINE_ARCH for Freescale PowerPC e500v2 2016-10-22 01:57:15 +00:00
sys Create a new MACHINE_ARCH for Freescale PowerPC e500v2 2016-10-22 01:57:15 +00:00
targets Update i386 build of loader.efi (but leave it disabled) so that we at 2016-10-14 17:25:29 +00:00
tests Integrate contrib/netbsd-tests/fs/tmpfs into the FreeBSD test suite 2016-10-21 05:24:08 +00:00
tools Remove /usr/libexec/bsdinstall/hardening if MK_BSDINSTALL == no 2016-10-21 08:12:18 +00:00
usr.bin Capsicum support for jot(1) 2016-10-19 21:50:57 +00:00
usr.sbin Create a new MACHINE_ARCH for Freescale PowerPC e500v2 2016-10-22 01:57:15 +00:00
.arcconfig callsign isn't required anymore 2016-09-29 06:19:45 +00:00
.arclint
COPYRIGHT
LOCKS
MAINTAINERS Remove myself from kern_timeout.c yeah! 2016-07-27 20:37:32 +00:00
Makefile Create a new MACHINE_ARCH for Freescale PowerPC e500v2 2016-10-22 01:57:15 +00:00
Makefile.inc1 Create a new MACHINE_ARCH for Freescale PowerPC e500v2 2016-10-22 01:57:15 +00:00
Makefile.libcompat Fix in-tree GCC builds after r304681. 2016-08-23 19:29:37 +00:00
ObsoleteFiles.inc Fix dates + add an UPDATING entry. 2016-10-17 21:35:13 +00:00
README README: remove nonexistent 'games' directory. 2016-05-18 10:43:13 +00:00
UPDATING After deeper software archaeology, reports that 10.3R was affected 2016-10-19 15:13:08 +00:00

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