* guix/build/syscalls.scm (clone): Add an entry for riscv64.
This allows the use of --container on riscv64.
Change-Id: I12b3cb5e2aa248266d006b6e456082f4ddc70e62
Signed-off-by: Ludovic Courtès <ludo@gnu.org>
This makes ‘terminal-string-width’ synonymous with ‘string-length’ when
running one a statically-linked Guile, as is the case in some unit
tests, instead of throwing ENOSYS.
* guix/build/syscalls.scm (terminal-string-width): Use ‘dynamic-func’
and ‘pointer->procedure’ instead of ‘syscall->procedure’. Return
‘string-length’ when one of the ‘dynamic-func’ calls fails.
Change-Id: Icf55c9e7c34b46fac91b665fb4a2ecb02160f22e
Instead of duplicating this existing logic across the source file. This
will make it easier to add additional linux targets (e.g. linux-musl) in
the future.
* guix/build/syscalls.scm (readdir*, write-socket-address!)
(read-socket-address): Use linux? constant.
Signed-off-by: Ludovic Courtès <ludo@gnu.org>
Change-Id: I833c1d1630dcb8319584de1ea918cb22696f0058
This commit allows using Guix on a foreign distro which uses musl libc,
for example, Alpine Linux. Usage of musl libc is detected via a new
musl-libc? variable using the Guile %host-type.
Using the new musl-libc? variable, we can now implement musl-specific
quirks. The two compatibility problems I encountered in this regard are
that musl dose not export a readdir64 and statfs64 symbol. On musl,
these two functions are implemented as CPP macros that expand to
readdir/statfs. To workaround that, a case-distinction was added.
The existing linux? variable has been modified to return true if the
%host-system contains "linux-" in order to ensure it is true for both
linux-gnu as well as linux-musl host systems.
The patch has been tested on Alpine Linux and is already used for the
downstream Guix package shipped in Alpine Linux's package repository.
* guix/build/syscalls.scm (musl-libc?): New variable.
(linux?): Truth value on any linux system.
(statfs, readdir-procedure): Support musl libc.
Signed-off-by: Sören Tempel <soeren@soeren-tempel.net>
Signed-off-by: Ludovic Courtès <ludo@gnu.org>
Change-Id: Icc4101a062381240f977f4550344bde696513c52
This is a re-implementation of 3c8b6fd94c
done in a way that works for both glibc >= 2.34 and earlier versions.
* guix/build/syscalls.scm (syscall->procedure): When LIBRARY is true,
fall back to global symbols if (dynamic-link library) fails.
(cherry picked from commit 3f6c32a88f)
Fixes <https://issues.guix.gnu.org/59185>.
* guix/build/syscalls.scm (MS_REC): New variable.
* gnu/build/file-systems.scm (mount-flags->bit-mask): Set MS_REC bit when
bind-mounting.
Fixes <https://issues.guix.gnu.org/58663>.
This is a followup to b665dd4a99 and
dcb640f02b, allowing "nodiratime" to be
preserved for bind mounts.
* guix/build/syscalls.scm (MS_NODIRATIME): New variable.
(option-string->mount-flags): Recognize it.
(statfs-flags->mount-flags): Likewise.
Commit 7df4d3465d and others changed
'mount', 'umount', & co. so they would call 'syscall->procedure' at each
call. This change reverts to the previous behavior, where
'syscall->procedure' is called once.
* guix/build/syscalls.scm (mount, umount, reboot, load-linux-module):
Call 'syscall->procedure' only once.
Adds low-level support for launching Linux containers with cgroup namespaces.
* gnu/build/linux-container.scm (%namespaces): Add 'cgroup.
(namespaces->bit-mask): Handle it.
* guix/build/syscalls.scm (CLONE_NEWCGROUP): New variable.
Signed-off-by: Ludovic Courtès <ludo@gnu.org>
In particular, libutil is not found when running code on a
statically-linked Guile.
Reported by mahmooz on #guix.
* guix/build/syscalls.scm (syscall->procedure): Add #:library parameter
and honor it.
(openpty, login-tty): Use 'syscall->procedure' instead of calling
'dynamic-link' directly.
* guix/cpio.scm (device-number, device->major+minor):
Move to, and subsequently import from, …
* guix/build/syscalls.scm (device-number, device-number->major+minor):
…here. Note the slight name change.
(mounts): Replace 16-bit open code with a DEVICE-NUMBER call.
* gnu/build/linux-boot.scm (device-number):
Remove duplicate 16-bit implementation in favour of the one above.
(resume-if-hibernated): Reuse DEVICE-NUMBER->MAJOR+MINOR.
This fixes the failing test add-to-entropy-count in tests/syscalls.scm on
powerpc64le-linux.
* guix/build/syscalls.scm (RNDADDTOENTCNT): When %host-type starts with
"powerpc64le", set this to #x80045201. Otherwise, set it to #x40045201 as
before.
This makes the clone procedure work correctly and fixes some test failures on
powerpc64le-linux, including tests/containers.scm.
* guix/build/syscalls.scm (clone): Add an entry for ppc64le.
On some systems, the columns in /proc/self/mountinfo look like this:
23 28 0:21 / /proc rw,nosuid,nodev,noexec,relatime shared:11 - proc proc rw
Before this change, the mounts procedure was written with the assumption that
the type and source could always be found in columns 8 and 9, respectively.
However, the proc(5) man page explains that there can be zero or more optional
fields starting at column 7 (e.g., "shared:11" above), so this assumption is
false in some situations.
* guix/build/syscalls.scm (mounts): Update the match pattern to use ellipsis
to match zero or more optional fields followed by a single hyphen. Remove the
trailing ellipsis, since multiple ellipses are not allowed in the same level.
The proc(5) man page indicates that there are no additional columns, so it is
probably OK to match an exact number of columns at the end like this.
* guix/build/syscalls.scm (<mount>): New record type.
(option-string->mount-flags, mount-flags)
(octal-decode, mounts): New procedures.
(mount-points): Rewrite in terms of 'mount'.
* tests/syscalls.scm ("mounts"): New test.
Avoid crash
Backtrace:
guix/build/syscalls.scm:405:8: In procedure prctl: Function not implemented
because of missing prctl on the Hurd.
* guix/build/syscalls.scm (set-thread-name, thread-name): Rename to ...
(set-thread-name!/linux,thread-name/linux): ...this.
(set-thread-name, thread-name): Swtich between linux implementation and or
stub.
Fixes <https://bugs.gnu.org/41581>.
Reported by Tobias Geerinckx-Rice <me@tobias.gr>.
* guix/build/syscalls.scm (terminal-dimension): Add EPERM to the list of
errno code for FALL-BACK.
* guix/build/syscalls.scm (sockaddr-in,sockaddr-in6): Rename to ...
(sockaddr-in/linux, sockaddr-in6/linux): ... this. Rename introduced bindings
as well.
(write-socket-address!/linux,read-socket-address/linux): Rename from
(write-socket-address!, read-socket-address): ... new switches between those
and ...
(write-socket-address!/hurd, read-socket-address/hurd): ... these new function.
Reported by Jan (janneke) Nieuwenhuizen <janneke@gnu.org>.
Before that, we'd always use the 'sizeof' and 'alignof' value obtained
from the host at macro-expansion time.
* guix/build/syscalls.scm (sizeof*, alignof*): When the target word size
differs from the host word size, emit a call to 'sizeof'/'alignof'.
Partly fixes <https://bugs.gnu.org/40574>.
Reported by Jan Nieuwenhuizen <janneke@gnu.org>.
Previously, we'd choose at expansion time whether to use the Hurd or the
Linux variant, taking the cross-compilation target into account. This
would lead to the wrong decision when (guix build syscalls) is evaluated
while we're cross-compiling to GNU/Hurd.
This is a followup to 1ab9e48339.
* guix/build/syscalls.scm (define-generic-identifier)
(read-dirent-header, %struct-dirent-header, sizeof-dirent-header):
Remove.
(readdir*): Rename to...
(readdir-procedure): ... this, and add parameters.
(readdir*): Define as a call to 'readdir-procedure' as a function of
%HOST-TYPE.
* guix/build/syscalls.scm (call-with-file-lock)
(call-with-file-lock/no-wait): Initialize PORT in the 'dynamic-wind'
"in" handler. This allows us to re-enter a captured continuation and
have the lock grabbed anew.
Reported by Matt Wette <matt.wette@gmail.com>
in <https://bugs.gnu.org/39194>.
* guix/build/syscalls.scm (call-with-file-lock/no-wait): When
re-throwing, pass KEY in addition to ARGS.
* guix/build/syscalls.scm (MS_LAZYTIME): New variable.
* gnu/build/file-systems.scm (mount-flags->bit-mask): Add match rules for
'strict-atime' and 'lazy-time'.
* doc/guix.texi (File Systems): Add 'strict-atime' and 'lazy-time' to the list
of supported flags.
Signed-off-by: Ludovic Courtès <ludo@gnu.org>
* guix/build/syscalls.scm (call-with-file-lock/no-wait): Really pass
ARGS to HANDLER. Return #f when HANDLER is called.
* guix/ui.scm (profile-lock-handler): Emit a mere warning upon ENOLCK.
* guix/build/syscalls.scm (RNDADDTOENTCNT): New variable.
(add-to-entropy-count): New procedure.
* tests/syscalls.scm ("add-to-entropy-count"): New test.
Fixes <https://bugs.gnu.org/36723>.
Reported by Timothy Sample <samplet@ngyro.com>.
* guix/build/syscalls.scm (define-as-needed): Rewrite to use lower-level
module primitives; define VARIABLE only if it's not already defined to
avoid "re-exporting local variable" error.
* guix/build/syscalls.scm (terminal-dimension): New procedure.
(terminal-columns): Rewrite in terms of 'terminal-dimension'.
(terminal-rows): New procedure.
* tests/syscalls.scm ("terminal-rows"): New test.
