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2024-02-20syscalls: ‘processes’ really omits kernel threads.Ludovic Courtès
Fixes a bug whereby ‘processes’ would include kernel threads, thereby leading the ‘stop’ method of ‘user-processes’ to wait indefinitely for a kernel thread. Code taken from the Shepherd. Fixes <https://issues.guix.gnu.org/68800>. * guix/build/syscalls.scm (kernel?): Remove. (linux-process-flags, linux-kernel-thread?, pseudo-process?): New procedures. (PF_KTHREAD): New variable. (processes): Use ‘pseudo-process?’ instead of ‘kernel?’. Reported-by: Tomas Volf <~@wolfsden.cz> Change-Id: I8c439cdaf868a8f899de7fe500ce8bf10e5fc290
2023-12-13syscalls: Define riscv64 syscall ID for clone.MarcoFalke
* 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>
2023-11-25syscalls: Add fallback case for ‘terminal-string-width’.Ludovic Courtès
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
2023-11-11guix: syscalls: Add terminal-string-width.Julien Lepiller
* guix/build/syscalls.scm (terminal-width): New procedure. * tests/syscalls.scm: Add tests. Change-Id: I6c2caa9fbaffb1e8f4b8933103399be970d5a8f3
2023-10-23syscalls: Consistently use existing linux? definition.Sören Tempel
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
2023-10-23syscalls: Add support for musl libc.Sören Tempel
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
2023-03-27syscalls: 'getxattr' throws upon error.Ludovic Courtès
* guix/build/syscalls.scm (getxattr): Throw in the negative SIZE case.
2023-02-12syscalls: 'with-file-lock' removes lock file upon exit.Ludovic Courtès
Fixes <https://issues.guix.gnu.org/57501>. Reported by Ricardo Wurmus <rekado@elephly.net>. * guix/build/syscalls.scm (call-with-file-lock) (call-with-file-lock/no-wait): Add call to 'delete-file' in unwind handler.
2022-12-02syscalls: Adjust for lack of 'libutil.so' on glibc >= 2.34.Ludovic Courtès
This is a re-implementation of 3c8b6fd94ceb1e898216929e8768fb518dbf1de9 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 3f6c32a88fc7a4d707ae1ed8ef3f7bd995461aff)
2022-11-20file-systems: Always do recursive bind mounts.Ricardo Wurmus
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.
2022-10-20syscalls: Define 'MS_NODIRATIME' and recognize "nodiratime".Ludovic Courtès
Fixes <https://issues.guix.gnu.org/58663>. This is a followup to b665dd4a9902b5722b9e06fd89c203e2221b19e0 and dcb640f02b1f9590c3bd4301a22bf31bd60c56d4, 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.
2022-09-08syscalls: Avoid repeated calls to 'syscall->procedure'.Ludovic Courtès
Commit 7df4d3465d305271d4fdf4e6f886a248d63b82c4 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.
2022-08-10gnu: system: file-systems: Add shared flag.Oleg Pykhalov
* gnu/build/file-systems.scm (mount-flags->bit-mask, mount-file-system): Handle shared flag. * gnu/system/file-systems.scm (invalid-file-system-flags): Add shared to known flags. * guix/build/syscalls.scm (MS_SHARED): New variable. * doc/guix.texi (File Systems): Document shared flag.
2022-01-05linux-container: Handle CLONE_NEWCGROUP and use it by default.Ryan Sundberg
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>
2021-11-23Merge branch 'master' into core-updates-frozenLudovic Courtès
2021-11-23system: Add swap flags.Josselin Poiret
* gnu/system/file-systems.scm (swap-space)[priority, discard?]: Add them. * guix/build/syscalls.scm (SWAP_FLAG_PREFER, SWAP_FLAG_PRIO_MASK, SWAP_FLAG_PRIO_SHIFT, SWAP_FLAG_DISCARD): Add them. * gnu/build/file-systems.scm (swap-space->flags-bit-mask): Add it. * gnu/services/base.scm (swap-service-type): Use it. Signed-off-by: Ludovic Courtès <ludo@gnu.org>
2021-11-20build: syscalls: Add a SET-CHILD-SUBREAPER! procedure.Maxim Cournoyer
* guix/build/syscalls.scm (PR_SET_CHILD_SUBREAPER): New variable. (set-child-subreaper!): New procedure.
2021-10-26syscalls: Gracefully handle failure to load libc's libutil.Ludovic Courtès
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.
2021-10-26syscalls: Add 'openpty' and 'login-tty'.Ludovic Courtès
* guix/build/syscalls.scm (openpty, login-pty): New procedures. * tests/syscalls.scm ("openpty", "openpty + login-tty"): New tests.
2021-09-23syscalls: Deduplicate device number conversion.Tobias Geerinckx-Rice
* 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.
2021-07-07Revert "syscalls: 'terminal-dimension' ignores EPERM."Tobias Geerinckx-Rice
This reverts commit 17a102332a253f0e3b1f511fa7bda2094264a77c. See <https://github.com/koverstreet/bcachefs/pull/277>.
2021-03-23syscalls: Fix RNDADDTOENTCNT on powerpc64le-linux.Chris Marusich
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.
2021-03-23syscalls: Fix clone on powerpc64le-linux.Chris Marusich
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.
2021-03-15syscalls: mounts: Fix a matching bug.Chris Marusich
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.
2021-03-10syscalls: Define the ST_* constants and add 'statfs-flags->mount-flags'.Ludovic Courtès
* guix/build/syscalls.scm (linux?): New variable. (define-statfs-flags): New macro. (ST_RDONLY, ST_NOSUID, ST_NODEV, ST_NOEXEC, ST_SYNCHRONOUS) (ST_MANDLOCK, ST_WRITE, ST_APPEND, ST_IMMUTABLE, ST_NOATIME) (ST_NODIRATIME, ST_RELATIME): New variables. (statfs-flags->mount-flags): New procedure.
2021-02-25syscalls: Add 'mounts' and the <mount> record type.Ludovic Courtès
* 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.
2021-02-25syscalls: Define MS_RELATIME.Ludovic Courtès
* guix/build/syscalls.scm (MS_RELATIME): New variable.
2020-06-08syscalls: set-thread-name, thread-name: Fix thinko.Jan (janneke) Nieuwenhuizen
* guix/build/syscalls.scm (set-thread-name, thread-name): Oops, fix thinko.
2020-06-08syscalls: set-thread-name, thread-name: Stub for the Hurd.Jan (janneke) Nieuwenhuizen
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.
2020-05-29syscalls: 'terminal-dimension' ignores EPERM.Ludovic Courtès
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.
2020-05-29syscalls: Properly match %HOST-TYPE.Jesse Dowell
Fixes <https://bugs.gnu.org/41546>. Regression introduced in 0d371c633f7308cfde2432d6119d386a5c63198c. * guix/build/syscalls.scm (write-socket-address!) (read-socket-address): Use 'string-contains' instead of 'string-suffix?'. Signed-off-by: Ludovic Courtès <ludo@gnu.org>
2020-05-15syscalls: Adjust 'sockaddr-in', 'sockaddr-in6' structs for the Hurd.Jan (janneke) Nieuwenhuizen
* 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.
2020-05-14syscalls: Add 'getxattr'.Jan (janneke) Nieuwenhuizen
* guix/build/syscalls.scm (getxattr): New procedure. * tests/syscalls.scm ("getxattr, setxattr"): Test it, together with setxattr.
2020-05-13syscalls: Add 'setxattr'.Jan (janneke) Nieuwenhuizen
* guix/build/syscalls.scm (setxattr): New procedure. Co-authored-by: Ludovic Courtès <ludo@gnu.org>
2020-05-07syscalls: Add ioctl flags for the Hurd.Jan (janneke) Nieuwenhuizen
Use #include <stdio.h> #include <net/if.h> #include <hurd/ioctl.h> int main () { printf ("SIOCSIFFLAGS #x%x\n", SIOCSIFFLAGS); printf ("SIOCGIFADDR #x%x\n", SIOCGIFADDR); printf ("SIOCSIFADDR #x%x\n", SIOCSIFADDR); printf ("SIOCGIFNETMASK #x%x\n", SIOCGIFNETMASK); printf ("SIOCSIFNETMASK #x%x\n", SIOCSIFNETMASK); #if 0 printf ("SIOCADDRT #x%x\n", SIOCADDRT); printf ("SIOCDELRT #x%x\n", SIOCDELRT); #endif } to fill in some blanks. Adding and removing route apparently not supported. * guix/build/syscalls.scm (SIOCSIFFLAGS SIOCGIFADDR, SIOCSIFADDR, SIOCGIFNETMASK, SIOCSIFNETMASK):
2020-05-05syscalls: 'define-c-struct' supports cross-compilation.Ludovic Courtès
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'.
2020-04-20syscalls: Fix Linux detection in 'readdir*'.Julien Lepiller
* guix/build/syscalls.scm (readdir*): Fix Linux detection for `arm-unknown-linux-gnueabihf'.
2020-04-16syscalls: 'readdir*' chooses between the Linux and Hurd code at run time.Ludovic Courtès
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 1ab9e483391f8b62b873833ea71cb0074efa03e7. * 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.
2020-03-22syscalls: 'with-file-lock' re-grabs lock when reentering its dynamic extent.Ludovic Courtès
* 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.
2020-01-19syscalls: Pass the right 'throw' arguments in 'call-with-file-lock/no-wait'.Ludovic Courtès
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.
2019-12-07file-systems: Add support for 'strict-atime' and 'lazy-time' flags.Guillaume Le Vaillant
* 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>
2019-11-29ui: 'with-profile-lock' keeps going upon ENOLCK.Ludovic Courtès
* 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.
2019-11-08guix: Add file-locking with no wait.Julien Lepiller
* guix/build/syscalls.scm (with-file-lock/no-wait): New procedure. (lock-file): Take a #:wait? key.
2019-10-05syscalls: Add 'add-to-entropy-count'.Ludovic Courtès
* guix/build/syscalls.scm (RNDADDTOENTCNT): New variable. (add-to-entropy-count): New procedure. * tests/syscalls.scm ("add-to-entropy-count"): New test.
2019-07-19syscalls: 'define-as-needed' does not re-export local variables.Ludovic Courtès
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.
2019-07-15syscalls: Use 'define-as-needed' for 'AT_' constants introduced in Guile 2.2.5.Ludovic Courtès
* guix/build/syscalls.scm (AT_FDCWD, AT_SYMLINK_NOFOLLOW, AT_REMOVEDIR) (AT_SYMLINK_FOLLOW, AT_NO_AUTOMOUNT, AT_EMPTY_PATH): Define using 'define-as-needed'.
2019-06-27syscalls: Add 'terminal-rows'.Ludovic Courtès
* 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.
2019-06-05syscalls: 'with-lock-file' catches ENOSYS.Ludovic Courtès
* guix/build/syscalls.scm (call-with-file-lock): Catch ENOSYS raised by 'lock-file'.
2019-06-05syscalls: 'with-file-lock' expands to a call to 'call-with-file-lock'.Ludovic Courtès
* guix/build/syscalls.scm (call-with-file-lock): New procedure. (with-file-lock): Expand to a call to 'call-with-file-lock'.
2019-06-05syscalls: Add 'with-file-lock' macro.Ludovic Courtès
* guix/scripts/offload.scm (lock-file, unlock-file, with-file-lock): Move to... * guix/build/syscalls.scm: ... here.
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