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38 Commits

Author SHA1 Message Date
Ed Maste
1f3de6dce9 arch.7: update final ia64 release to 10.4 
No more 10.x releases are planned.
 2018-10-23 13:03:24 +00:00
Ed Maste
2af3ea6bc1 arch.7: first appeared in FreeBSD 11.1 2018-10-22 18:41:22 +00:00
Ian Lepore
f38b2297a3 Document 64-bit arm in terms of arch name (aarch64) not machine (arm64). 
Other architectures are documented in terms of the name that is displayed by
'uname -p', aka MACHINE_ARCH and TARGET_ARCH in the build system, now
aarch64 matches the rest of them.

PR:		220297
 2018-08-05 22:24:38 +00:00
Ed Maste
83722abcb6 arch.7: fix whitespace from r336435 
Previously armeb's Final Release rendered as 'Ta 11.x'.

Sponsored by:	The FreeBSD Foundation
 2018-07-23 21:09:57 +00:00
Ed Maste
f84d8f0ce5 arch.7: Clarify architecture-specific macro use 
Compilers may define multiple variants of architecture-specific macros
(for example, both __x86_64 and __x86_64__).  Add a note that the macros
documented in arch.7 are the preferred ones for FreeBSD.

Sponsored by:	The FreeBSD Foundation
 2018-07-23 19:39:20 +00:00
Warner Losh
e9d6b13d25 Remove armeb from arch.7 
Remove all the details about armeb from arch(7), except for its
release start and end, like alpha, ia64 and pc98.

Differential Revision:  https://reviews.freebsd.org/D16257
 2018-07-17 23:23:39 +00:00
John Baldwin
d56b465cd5 Fix a typo. 2018-02-05 23:29:50 +00:00
Warner Losh
1f0e303c47 Bump .Dd 2018-01-31 23:16:54 +00:00
Warner Losh
13368c3830 Add the new armv7 architecture. 2018-01-31 23:16:19 +00:00
Warner Losh
320bd864aa Use better wording: change there to the and define to defines. 
Also fix a run-a-way macro invocation of Dv.

Noticed by: matteo@
 2017-11-16 00:19:44 +00:00
Warner Losh
098150fb90 Fix some formatting issues, bump .Dd to today's date, don't use 
contractions, and make igor almost happy with this (two issues are
false positives, and I'm not sure a synopsis makes sense).

Sponsored by: Netflix
 2017-11-15 23:51:17 +00:00
Warner Losh
12497aa5be Replace Fx's with 'the' since expanding FreeBSD here didn't seem quite 
right.

Sponsored by: Netflix
 2017-11-15 15:02:45 +00:00
Warner Losh
bf1dea9b13 Reword a bit for clarity. 
Sponsored by: Netflix
 2017-11-15 15:00:02 +00:00
Warner Losh
ffab3cb640 Add note about where to use MACHINE (just src/stand and src/sys and a 
few others). Add note aboute MACHINE_CPUARCH.

Sponsored by: Netflix
 2017-11-15 00:06:18 +00:00
Warner Losh
691e6ea877 Document MACHINE, MACHINE_ARCH, CPUTYPE, TARGET and TARGET_ARCH 
historical use and general philosphy.

Sponsored by: Netflix
Differential Revision: https://reviews.freebsd.org/D12981
 2017-11-13 00:32:44 +00:00
Ed Maste
49ccd3fe61 arch.7: correct statement about time_t size 
After r320347 it is 64-bit on every architecture except i386.

Sponsored by:	The FreeBSD Foundation
 2017-10-04 14:39:55 +00:00
Ruslan Bukin
ca20f8ec29 o Replace __riscv__ with __riscv 
o Replace __riscv64 with (__riscv && __riscv_xlen == 64)

This is required to support new GCC 7.1 compiler.
This is compatible with current GCC 6.1 compiler.

RISC-V is extensible ISA and the idea here is to have built-in define
per each extension, so together with __riscv we will have some subset
of these as well (depending on -march string passed to compiler):

__riscv_compressed
__riscv_atomic
__riscv_mul
__riscv_div
__riscv_muldiv
__riscv_fdiv
__riscv_fsqrt
__riscv_float_abi_soft
__riscv_float_abi_single
__riscv_float_abi_double
__riscv_cmodel_medlow
__riscv_cmodel_medany
__riscv_cmodel_pic
__riscv_xlen

Reviewed by:	ngie
Sponsored by:	DARPA, AFRL
Differential Revision:	https://reviews.freebsd.org/D11901
 2017-08-07 14:09:57 +00:00
Justin Hibbits
fbcf7bcdf4 Solve the y2038 problem for powerpc 
AKA Make time_t 64 bits on powerpc(32).

PowerPC currently (until now) was one of two architectures with a 32-bit time_t
on 32-bit archs (the other being i386).  This is an ABI breakage, so all ports,
and all local binaries, *must* be recompiled.

Tested by:	andreast, others
MFC after:	Never
Relnotes:	Yes
 2017-06-26 02:25:19 +00:00
John Baldwin
04794d246a Note that the first release of FreeBSD/alpha was 3.2. 
Alpha is explicitly mentioned in the release announcements beginning with
3.2.
 2017-05-16 23:15:40 +00:00
Ed Maste
7fb14275b5 arch(7): correct initial versions for alpha and pc98 
Submitted by:	imp
 2017-05-08 14:17:10 +00:00
Konstantin Belousov
7748ab43a3 Grammar fixes. 
Noted by:	bde
Sponsored by:	The FreeBSD Foundation
MFC after:	2 weeks
 2017-05-05 18:36:41 +00:00
Konstantin Belousov
25b526e626 Define the scope and purpose of the page. 
Submitted by:	emaste
Sponsored by:	The FreeBSD Foundation
MFC after:	2 weeks
 2017-05-05 18:21:33 +00:00
Konstantin Belousov
e6c0d5c360 Fix some grammar, fix some markup, bump copyright year, provide more 
exact claims in some cases.

Discussed with:	bde (most parts)
Sponsored by:	The FreeBSD Foundation
MFC after:	2 weeks
 2017-05-05 17:23:57 +00:00
Ed Maste
45801499b2 arch(7): add a table of per-arch initial/final FreeBSD version 
Reviewed by:	kib, wblock
Sponsored by:	The FreeBSD Foundation
Differential Revision:	https://reviews.freebsd.org/D10573
 2017-05-05 16:40:45 +00:00
Konstantin Belousov
de6fc2729e Provide introduction for the arch(7) manpage. 
Start with some words about linear address space and its layout, then
explain pointers models and ABIs, providing explanation to the
structure of the tables.

Reviewed by:	emaste, imp
'Future-proof' cheri wording by:	brooks
Sponsored by:	The FreeBSD Foundation
MFC after:	2 weeks
Differential revision:	https://reviews.freebsd.org/D10596
 2017-05-04 21:31:50 +00:00
Konstantin Belousov
dddb157699 Avoid wrapping of the machine-dependent type sizes table, by removing 
non-informational sizeof() expressions.  Add some explanatory and
summary sentences.

Noted by:	bde
Sponsored by:	The FreeBSD Foundation
MFC after:	2 weeks
 2017-05-04 11:57:52 +00:00
John Baldwin
4dd67957a8 Replace 'riscv' with the RISC-V targets 'riscv64' and 'riscv64sf'. 2017-05-03 16:55:02 +00:00
Justin Hibbits
002cc1f914 Add powerpcspe to arch(7) 
Reviewed by:	emaste
 2017-05-02 21:33:27 +00:00
Konstantin Belousov
6554316cdc Document time_t size. 
Reviewed by:	emaste, imp, vangyzen
Sponsored by:	The FreeBSD Foundation
MFC after:	1 week
Differential revision:	https://reviews.freebsd.org/D10568
 2017-05-02 14:52:35 +00:00
Kevin Lo
cb8c6df463 Mention softfloat and hardfloat supports for RISC-V. 
Reviewed by:	br
 2017-01-21 07:07:50 +00:00
Ruslan Bukin
2ad1d09f16 o Add support for long double. 
o Add support for latest RISC-V GNU toolchain.

Sponsored by:	DARPA, AFRL
Sponsored by:	HEIF5
 2016-11-03 13:06:17 +00:00
Ruslan Bukin
5bca221511 Add full softfloat and hardfloat support for MIPS. 
This adds new target architectures for hardfloat:
mipselhf mipshf mips64elhf mips64hf.

Tested in QEMU only.

Sponsored by:	DARPA, AFRL
Sponsored by:	HEIF5
Differential Revision:	https://reviews.freebsd.org/D8376
 2016-10-31 15:33:58 +00:00
Ed Maste
8e71e1129f arch.7: correct typo in predefined macro example 
The example incorrectly used -Dm, which defines macro m with value 1.
It is supposed to be -dM, which lists macros.
 2016-10-20 20:16:10 +00:00
Konstantin Belousov
42e83752de Remove spurious but harmless double-quote. 
Noted by:	jhb
 2016-07-21 16:58:53 +00:00
Konstantin Belousov
1859c867df Improve typesetting. 
Reviewed by:	bapt
No objections from:	emaste
Sponsored by:	The FreeBSD Foundation
Differential revision:	https://reviews.freebsd.org/D7261
 2016-07-21 09:37:17 +00:00
Ed Maste
8395cdc108 arch.7: correct MIPS endianness transcription error 
Submitted by:	Nikolai Lifanov <lifanov@mail.lifanov.com>
 2016-07-19 20:11:50 +00:00
Ed Maste
780586e8a6 arch.7: we also use 1M page mappings on armv6 
Submitted by:	alc
 2016-07-19 19:50:30 +00:00
Ed Maste
df9330b50c add an arch.7 man page with architecture-specific details 
Based on details collected on the wiki, at
https://wiki.freebsd.org/EdMaste/ArchitectureSpecifics
Further details to be added over time.

Sponsored by:	The FreeBSD Foundation
Differential Revision:	https://reviews.freebsd.org/D7096
 2016-07-19 17:46:09 +00:00