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rwmjones 171b533800 architecture: Add support for the RISC-V architecture. (#4305) 
RISC-V is an open source ISA in development since 2010 at UCB.
For more information, see https://riscv.org/

I am adding RISC-V support to Fedora:
https://fedoraproject.org/wiki/Architectures/RISC-V

There are three major variants of the architecture (32-, 64- and
128-bit).  The 128-bit variant is a paper exercise, but the other
two really exist in silicon.  RISC-V is always little endian.

On Linux, the default kernel uname(2) can return "riscv" for all
variants.  However a patch was added recently which makes the kernel
return one of "riscv32" or "riscv64" (or in future "riscv128").  So
systemd should be prepared to handle any of "riscv", "riscv32" or
"riscv64" (in future, "riscv128" but that is not included in the
current patch).  If the kernel returns "riscv" then you need to use
the pointer size in order to know the real variant.

The Fedora/RISC-V kernel only ever returns "riscv64" since we're
only doing Fedora for 64 bit at the moment, and we've patched the
kernel so it doesn't return "riscv".

As well as the major bitsize variants, there are also architecture
extensions.  However I'm trying to ensure that uname(2) does *not*
return any other information about those in utsname.machine, so that
we don't end up with "riscv64abcde" nonsense.  Instead those
extensions will be exposed in /proc/cpuinfo similar to how flags
work in x86.
2016-10-07 14:56:27 +02:00
..
.gitignore build-sys: split internal basic/ library from shared/ 2015-06-11 10:52:46 +02:00
af-list.c tree-wide: remove Emacs lines from all files 2016-02-10 13:41:57 +01:00
af-list.h Use provided buffer in dns_resource_key_to_string 2016-02-16 19:55:51 -05:00
alloc-util.c tree-wide: remove Emacs lines from all files 2016-02-10 13:41:57 +01:00
alloc-util.h alloc-util: cleanups 2016-02-19 01:36:46 +06:00
architecture.c architecture: Add support for the RISC-V architecture. (#4305) 2016-10-07 14:56:27 +02:00
architecture.h architecture: Add support for the RISC-V architecture. (#4305) 2016-10-07 14:56:27 +02:00
arphrd-list.c tree-wide: remove Emacs lines from all files 2016-02-10 13:41:57 +01:00
arphrd-list.h tree-wide: remove Emacs lines from all files 2016-02-10 13:41:57 +01:00
async.c tree-wide: remove Emacs lines from all files 2016-02-10 13:41:57 +01:00
async.h tree-wide: remove Emacs lines from all files 2016-02-10 13:41:57 +01:00
audit-util.c audit: disable if cannot create NETLINK_AUDIT socket 2016-10-06 11:49:00 +02:00
audit-util.h tree-wide: remove Emacs lines from all files 2016-02-10 13:41:57 +01:00
barrier.c tree-wide: remove Emacs lines from all files 2016-02-10 13:41:57 +01:00
barrier.h tree-wide: remove Emacs lines from all files 2016-02-10 13:41:57 +01:00
bitmap.c resolved: when using the ResolveRecord() bus call, adjust TTL for caching time 2016-06-21 13:20:48 +02:00
bitmap.h resolved: when using the ResolveRecord() bus call, adjust TTL for caching time 2016-06-21 13:20:48 +02:00
blkid-util.h tree-wide: remove Emacs lines from all files 2016-02-10 13:41:57 +01:00
btrfs-ctree.h tree-wide: remove Emacs lines from all files 2016-02-10 13:41:57 +01:00
btrfs-util.c tree-wide: remove Emacs lines from all files 2016-02-10 13:41:57 +01:00
btrfs-util.h tree-wide: place #pragma once at the same place everywhere 2016-02-20 22:42:29 +01:00
build.h tree-wide: remove Emacs lines from all files 2016-02-10 13:41:57 +01:00
bus-label.c tree-wide: remove Emacs lines from all files 2016-02-10 13:41:57 +01:00
bus-label.h tree-wide: remove Emacs lines from all files 2016-02-10 13:41:57 +01:00
calendarspec.c util-lib: make timestamp generation and parsing reversible (#3869) 2016-08-03 19:04:53 -04:00
calendarspec.h util-lib: make timestamp generation and parsing reversible (#3869) 2016-08-03 19:04:53 -04:00
cap-list.c tree-wide: remove Emacs lines from all files 2016-02-10 13:41:57 +01:00
cap-list.h tree-wide: remove Emacs lines from all files 2016-02-10 13:41:57 +01:00
capability-util.c user-util: rework maybe_setgroups() a bit 2016-10-06 19:04:10 +02:00
capability-util.h tree-wide: remove Emacs lines from all files 2016-02-10 13:41:57 +01:00
cgroup-util.c Merge pull request #3965 from htejun/systemd-controller-on-unified 2016-08-19 19:58:01 -04:00
cgroup-util.h Merge pull request #3965 from htejun/systemd-controller-on-unified 2016-08-19 19:58:01 -04:00
chattr-util.c tree-wide: remove Emacs lines from all files 2016-02-10 13:41:57 +01:00
chattr-util.h tree-wide: remove Emacs lines from all files 2016-02-10 13:41:57 +01:00
clock-util.c clock-util: be more tolerant in parsing /etc/adjtime 2016-02-26 12:33:41 +01:00
clock-util.h clock-util: make clock_is_localtime() testable and add initial tests 2016-02-26 11:28:49 +01:00
conf-files.c tree-wide: remove Emacs lines from all files 2016-02-10 13:41:57 +01:00
conf-files.h tree-wide: remove Emacs lines from all files 2016-02-10 13:41:57 +01:00
copy.c treewide: fix typos and remove accidental repetition of words 2016-07-11 16:18:43 +02:00
copy.h machined: support non-btrfs file systems with "machinectl clone" 2016-05-02 11:15:30 +02:00
cpu-set-util.c tree-wide: remove Emacs lines from all files 2016-02-10 13:41:57 +01:00
cpu-set-util.h tree-wide: remove Emacs lines from all files 2016-02-10 13:41:57 +01:00
def.h tree-wide: rename config_parse_many to …_nulstr 2016-09-16 10:32:03 -04:00
device-nodes.c tree-wide: remove Emacs lines from all files 2016-02-10 13:41:57 +01:00
device-nodes.h tree-wide: remove Emacs lines from all files 2016-02-10 13:41:57 +01:00
dirent-util.c tree-wide: rename hidden_file to hidden_or_backup_file and optimize 2016-04-28 08:25:17 -04:00
dirent-util.h tree-wide: rename hidden_file to hidden_or_backup_file and optimize 2016-04-28 08:25:17 -04:00
env-util.c tree-wide: remove Emacs lines from all files 2016-02-10 13:41:57 +01:00
env-util.h tree-wide: remove Emacs lines from all files 2016-02-10 13:41:57 +01:00
errno-list.c tree-wide: remove Emacs lines from all files 2016-02-10 13:41:57 +01:00
errno-list.h tree-wide: remove Emacs lines from all files 2016-02-10 13:41:57 +01:00
escape.c tree-wide: remove consecutive duplicate words in comments 2016-10-04 17:06:25 +02:00
escape.h Merge pull request #2589 from keszybz/resolve-tool-2 2016-02-13 11:15:41 +01:00
ether-addr-util.c util-lib: add ether_addr_from_string() 2016-05-17 16:55:20 -04:00
ether-addr-util.h util-lib: add ether_addr_from_string() 2016-05-17 16:55:20 -04:00
exit-status.c exit-code: minor coding style updates 2016-06-06 19:59:07 +02:00
exit-status.h exit-status: update comments a bit 2016-06-06 19:59:08 +02:00
extract-word.c tree-wide: make ++/-- usage consistent WRT spacing 2016-02-22 20:32:04 -08:00
extract-word.h tree-wide: remove Emacs lines from all files 2016-02-10 13:41:57 +01:00
fd-util.c basic/fd-util: introduce stdio_unset_cloexec() function 2016-07-02 23:38:47 +06:00
fd-util.h basic/fd-util: introduce stdio_unset_cloexec() function 2016-07-02 23:38:47 +06:00
fileio-label.c tree-wide: remove Emacs lines from all files 2016-02-10 13:41:57 +01:00
fileio-label.h tree-wide: remove Emacs lines from all files 2016-02-10 13:41:57 +01:00
fileio.c fileio: simplify mkostemp_safe() (#4090) 2016-09-13 08:20:38 +02:00
fileio.h fileio: simplify mkostemp_safe() (#4090) 2016-09-13 08:20:38 +02:00
formats-util.h core: set $JOURNAL_STREAM to the dev_t/ino_t of the journal stream of executed services 2016-06-15 23:00:27 +02:00
fs-util.c namespace: chase symlinks for mounts to set up in userspace 2016-09-25 10:42:18 +02:00
fs-util.h namespace: chase symlinks for mounts to set up in userspace 2016-09-25 10:42:18 +02:00
glob-util.c tree-wide: remove Emacs lines from all files 2016-02-10 13:41:57 +01:00
glob-util.h tree-wide: remove Emacs lines from all files 2016-02-10 13:41:57 +01:00
gunicode.c basic: include only what we use 2015-11-30 21:51:03 +01:00
gunicode.h tree-wide: place #pragma once at the same place everywhere 2016-02-20 22:42:29 +01:00
hash-funcs.c tree-wide: remove Emacs lines from all files 2016-02-10 13:41:57 +01:00
hash-funcs.h tree-wide: remove Emacs lines from all files 2016-02-10 13:41:57 +01:00
hashmap.c set: add new set_put_strsplit() call 2016-06-21 13:20:48 +02:00
hashmap.h tree-wide: remove Emacs lines from all files 2016-02-10 13:41:57 +01:00
hexdecoct.c tree-wide: make ++/-- usage consistent WRT spacing 2016-02-22 20:32:04 -08:00
hexdecoct.h tree-wide: remove Emacs lines from all files 2016-02-10 13:41:57 +01:00
hostname-util.c hostnamectl: rework pretty hostname validation (#3985) 2016-08-18 21:16:16 -04:00
hostname-util.h networkd: add basic LLDP transmission support 2016-02-21 20:58:59 +01:00
in-addr-util.c Merge pull request #3432 from poettering/resolved-ll-ipv6 2016-06-09 10:18:07 +02:00
in-addr-util.h Merge pull request #3432 from poettering/resolved-ll-ipv6 2016-06-09 10:18:07 +02:00
io-util.c core: rework how we flush incoming traffic when a socket unit goes down 2016-05-06 13:29:26 +02:00
io-util.h tree-wide: minor formatting inconsistency cleanups 2016-02-23 14:20:34 -08:00
ioprio.h tree-wide: sort includes in *.h 2015-11-18 23:09:02 +01:00
label.c tree-wide: remove Emacs lines from all files 2016-02-10 13:41:57 +01:00
label.h tree-wide: remove Emacs lines from all files 2016-02-10 13:41:57 +01:00
list.h list: LIST_INSERT_BEFORE: update head if necessary (#4261) 2016-10-04 16:15:37 +02:00
locale-util.c locale-util: mark special_glyph() as _const_ 2016-05-09 15:17:57 -04:00
locale-util.h locale-util: mark special_glyph() as _const_ 2016-05-09 15:17:57 -04:00
lockfile-util.c tree-wide: remove Emacs lines from all files 2016-02-10 13:41:57 +01:00
lockfile-util.h tree-wide: remove Emacs lines from all files 2016-02-10 13:41:57 +01:00
log.c basic: log: Increase static buffer for source file location (#3674) 2016-07-07 07:30:34 +03:00
log.h basic/log: remove unused return value 2016-03-15 19:40:33 -04:00
login-util.c tree-wide: remove Emacs lines from all files 2016-02-10 13:41:57 +01:00
login-util.h tree-wide: place #pragma once at the same place everywhere 2016-02-20 22:42:29 +01:00
macro.h networkd: add support to configure VLAN on bridge ports 2016-06-10 09:10:41 +02:00
Makefile build-sys: split internal basic/ library from shared/ 2015-06-11 10:52:46 +02:00
memfd-util.c tree-wide: remove Emacs lines from all files 2016-02-10 13:41:57 +01:00
memfd-util.h tree-wide: remove Emacs lines from all files 2016-02-10 13:41:57 +01:00
mempool.c tree-wide: remove Emacs lines from all files 2016-02-10 13:41:57 +01:00
mempool.h tree-wide: make more global variables static 2016-02-13 12:28:28 +01:00
missing.h missing.h: add missing definitions for __O_TMPFILE 2016-08-29 12:40:22 +02:00
missing_syscall.h missing_syscall: add __NR_copy_file_range for powerpc architecture (#3772) 2016-07-21 11:40:35 +02:00
mkdir-label.c tree-wide: remove Emacs lines from all files 2016-02-10 13:41:57 +01:00
mkdir.c tree-wide: remove Emacs lines from all files 2016-02-10 13:41:57 +01:00
mkdir.h tree-wide: remove Emacs lines from all files 2016-02-10 13:41:57 +01:00
mount-util.c namespace: rework how ReadWritePaths= is applied 2016-09-25 10:40:51 +02:00
mount-util.h namespace: rework how ReadWritePaths= is applied 2016-09-25 10:40:51 +02:00
MurmurHash2.c tree-wide: minor formatting inconsistency cleanups 2016-02-23 14:20:34 -08:00
MurmurHash2.h build-sys: split internal basic/ library from shared/ 2015-06-11 10:52:46 +02:00
nss-util.h basic: fix macro definition in nss-util.h 2016-07-20 14:53:15 +02:00
ordered-set.c networkd: use an OrderedSet instead of Set to collect link domains 2016-01-26 14:42:03 +01:00
ordered-set.h tree-wide: remove Emacs lines from all files 2016-02-10 13:41:57 +01:00
parse-util.c util-lib: unify parsing of nice level values 2016-08-05 11:18:32 +02:00
parse-util.h util-lib: unify parsing of nice level values 2016-08-05 11:18:32 +02:00
path-util.c path-util: also support ".old" and ".new" suffixes and recommend them 2016-04-29 10:21:07 -04:00
path-util.h tree-wide: rename hidden_file to hidden_or_backup_file and optimize 2016-04-28 08:25:17 -04:00
prioq.c tree-wide: remove Emacs lines from all files 2016-02-10 13:41:57 +01:00
prioq.h tree-wide: remove Emacs lines from all files 2016-02-10 13:41:57 +01:00
proc-cmdline.c core: parse rd.rescue and rd.emergency as initrd-specific shorthands (#3488) 2016-06-13 16:28:42 +02:00
proc-cmdline.h tree-wide: remove Emacs lines from all files 2016-02-10 13:41:57 +01:00
process-util.c util: don't send SIGCONT following a SIGCONT or SIGKILL in kill_and_sigcont() 2016-07-20 11:14:48 +02:00
process-util.h util-lib: unify parsing of nice level values 2016-08-05 11:18:32 +02:00
random-util.c Fixed a small typo in a comment (#3514) 2016-06-12 16:42:13 +02:00
random-util.h basic: include only what we use 2015-11-30 21:51:03 +01:00
ratelimit.c tree-wide: remove Emacs lines from all files 2016-02-10 13:41:57 +01:00
ratelimit.h tree-wide: remove Emacs lines from all files 2016-02-10 13:41:57 +01:00
raw-clone.h util-lib: Add sparc64 support for process creation (#3348) 2016-05-29 20:03:51 -04:00
refcnt.h tree-wide: remove Emacs lines from all files 2016-02-10 13:41:57 +01:00
replace-var.c tree-wide: remove Emacs lines from all files 2016-02-10 13:41:57 +01:00
replace-var.h tree-wide: remove Emacs lines from all files 2016-02-10 13:41:57 +01:00
rlimit-util.c core: make parsing of RLIMIT_NICE aware of actual nice levels 2016-04-29 16:27:49 +02:00
rlimit-util.h tree-wide: remove Emacs lines from all files 2016-02-10 13:41:57 +01:00
rm-rf.c tree-wide: remove Emacs lines from all files 2016-02-10 13:41:57 +01:00
rm-rf.h basic: remove rm_rf_and_free, add rm_rf_physical_and_free, use rm_rf_physical_and_freep in tests (#3292) 2016-05-20 15:08:24 +02:00
securebits.h build-sys: split internal basic/ library from shared/ 2015-06-11 10:52:46 +02:00
selinux-util.c tree-wide: get rid of selinux_context_t (#3732) 2016-07-15 18:44:02 +02:00
selinux-util.h selinux: always try to load the full selinux db 2016-03-01 20:39:30 -05:00
set.h basic/set: remove some spurious spaces 2016-08-04 23:53:07 -04:00
sigbus.c tree-wide: remove Emacs lines from all files 2016-02-10 13:41:57 +01:00
sigbus.h tree-wide: place #pragma once at the same place everywhere 2016-02-20 22:42:29 +01:00
signal-util.c tree-wide: add new SIGNAL_VALID() macro-like function that validates signal numbers 2016-04-12 13:43:32 +02:00
signal-util.h tree-wide: add new SIGNAL_VALID() macro-like function that validates signal numbers 2016-04-12 13:43:32 +02:00
siphash24.c missing include added for build with -DDEBUG (#3424) 2016-06-03 12:33:12 +02:00
siphash24.h shared: make sure foo.bar and foobar result in different domain name hashes 2016-01-11 19:39:59 +01:00
smack-util.c tree-wide: remove Emacs lines from all files 2016-02-10 13:41:57 +01:00
smack-util.h tree-wide: remove Emacs lines from all files 2016-02-10 13:41:57 +01:00
socket-label.c socket_address_listen: do not rely on errno (2) 2016-03-10 09:24:08 -05:00
socket-util.c sd-device/networkd: unify code to get a socket for issuing netdev ioctls on 2016-10-06 19:04:01 +02:00
socket-util.h sd-device/networkd: unify code to get a socket for issuing netdev ioctls on 2016-10-06 19:04:01 +02:00
sparse-endian.h build-sys: split internal basic/ library from shared/ 2015-06-11 10:52:46 +02:00
special.h Create initrd-root-device.target synchronization point (#3239) 2016-05-12 18:42:39 +02:00
stat-util.c tree-wide: remove Emacs lines from all files 2016-02-10 13:41:57 +01:00
stat-util.h tree-wide: remove Emacs lines from all files 2016-02-10 13:41:57 +01:00
stdio-util.h tree-wide: minor formatting inconsistency cleanups 2016-02-23 14:20:34 -08:00
strbuf.c strbuf: set the proper character when creating new nodes 2016-05-03 22:35:27 +02:00
strbuf.h tree-wide: remove Emacs lines from all files 2016-02-10 13:41:57 +01:00
string-table.c tree-wide: remove Emacs lines from all files 2016-02-10 13:41:57 +01:00
string-table.h string-table: make sure DEFINE_STRING_TABLE_LOOKUP_WITH_BOOLEAN() handles NULL strings nicely 2016-06-21 13:20:47 +02:00
string-util.c Always use unicode ellipsis when ellipsizing 2016-09-13 20:10:57 -04:00
string-util.h machinectl: split OS field in two; print ip addresses (#4058) 2016-08-31 20:06:57 +02:00
strv.c Merge pull request #3745 from keszybz/fix-make-nulstr-confusion 2016-07-18 11:12:47 +02:00
strv.h basic/strv: add STRPTR_IN_SET 2016-09-24 20:13:28 -04:00
strxcpyx.c tree-wide: remove Emacs lines from all files 2016-02-10 13:41:57 +01:00
strxcpyx.h tree-wide: remove Emacs lines from all files 2016-02-10 13:41:57 +01:00
syslog-util.c tree-wide: remove Emacs lines from all files 2016-02-10 13:41:57 +01:00
syslog-util.h tree-wide: remove Emacs lines from all files 2016-02-10 13:41:57 +01:00
terminal-util.c terminal-util: remove unnecessary check of result of isatty() (#4000) 2016-08-19 18:51:54 -04:00
terminal-util.h pager: don't start pager if the terminal is explicitly set to TERM=dumb 2016-05-30 18:23:54 +02:00
time-util.c time-util: export timespec_load_nsec() 2016-09-15 05:21:09 +03:00
time-util.h time-util: export timespec_load_nsec() 2016-09-15 05:21:09 +03:00
umask-util.h tree-wide: remove Emacs lines from all files 2016-02-10 13:41:57 +01:00
unaligned.h util-lib: add accessors for unaligned native endian words 2016-06-06 19:59:09 +02:00
unit-name.c tree-wide: remove Emacs lines from all files 2016-02-10 13:41:57 +01:00
unit-name.h unit-name: remove spurious newline 2016-06-13 18:47:42 +02:00
user-util.c user-util: rework maybe_setgroups() a bit 2016-10-06 19:04:10 +02:00
user-util.h core: do not fail in a container if we can't use setgroups 2016-10-06 11:49:00 +02:00
utf8.c tree-wide: make ++/-- usage consistent WRT spacing 2016-02-22 20:32:04 -08:00
utf8.h Ignore BOM in config files 2016-03-22 18:51:59 -04:00
util.c tree-wide: remove consecutive duplicate words in comments 2016-10-04 17:06:25 +02:00
util.h Add enable_disable() helper 2016-07-31 22:48:22 -04:00
verbs.c tree-wide: remove Emacs lines from all files 2016-02-10 13:41:57 +01:00
verbs.h tree-wide: remove Emacs lines from all files 2016-02-10 13:41:57 +01:00
virt.c virt: detect bhyve (FreeBSD hypervisor) (#3840) 2016-08-01 09:04:49 -04:00
virt.h virt: detect bhyve (FreeBSD hypervisor) (#3840) 2016-08-01 09:04:49 -04:00
web-util.c tree-wide: remove Emacs lines from all files 2016-02-10 13:41:57 +01:00
web-util.h tree-wide: remove Emacs lines from all files 2016-02-10 13:41:57 +01:00
xattr-util.c tree-wide: no need to pass excess flags to open()/openat() if O_PATH is passed 2016-03-02 00:42:49 +06:00
xattr-util.h tree-wide: remove Emacs lines from all files 2016-02-10 13:41:57 +01:00
xml.c tree-wide: remove Emacs lines from all files 2016-02-10 13:41:57 +01:00
xml.h tree-wide: remove Emacs lines from all files 2016-02-10 13:41:57 +01:00