assert(long_max > 100000)
conf.set_quoted('LONG_MAX_STR', '@0@'.format(long_max))
-foreach ident : [
- ['struct sched_attr', '''#include <sched.h>'''], # since glibc-2.41
-]
- # We get -1 if the size cannot be determined
- have = cc.sizeof(ident[0], prefix : ident[1], args : '-D_GNU_SOURCE') > 0
- conf.set10('HAVE_' + ident[0].underscorify().to_upper(), have)
-endforeach
-
foreach ident : [
['set_mempolicy', '''#include <sys/syscall.h>'''], # declared at numaif.h provided by libnuma, which we do not use
['get_mempolicy', '''#include <sys/syscall.h>'''], # declared at numaif.h provided by libnuma, which we do not use
--- /dev/null
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
+/*
+ * NUMA memory policies for Linux.
+ * Copyright 2003,2004 Andi Kleen SuSE Labs
+ */
+#ifndef _LINUX_MEMPOLICY_H
+#define _LINUX_MEMPOLICY_H
+
+#include <linux/errno.h>
+
+
+/*
+ * Both the MPOL_* mempolicy mode and the MPOL_F_* optional mode flags are
+ * passed by the user to either set_mempolicy() or mbind() in an 'int' actual.
+ * The MPOL_MODE_FLAGS macro determines the legal set of optional mode flags.
+ */
+
+/* Policies */
+enum {
+ MPOL_DEFAULT,
+ MPOL_PREFERRED,
+ MPOL_BIND,
+ MPOL_INTERLEAVE,
+ MPOL_LOCAL,
+ MPOL_PREFERRED_MANY,
+ MPOL_WEIGHTED_INTERLEAVE,
+ MPOL_MAX, /* always last member of enum */
+};
+
+/* Flags for set_mempolicy */
+#define MPOL_F_STATIC_NODES (1 << 15)
+#define MPOL_F_RELATIVE_NODES (1 << 14)
+#define MPOL_F_NUMA_BALANCING (1 << 13) /* Optimize with NUMA balancing if possible */
+
+/*
+ * MPOL_MODE_FLAGS is the union of all possible optional mode flags passed to
+ * either set_mempolicy() or mbind().
+ */
+#define MPOL_MODE_FLAGS \
+ (MPOL_F_STATIC_NODES | MPOL_F_RELATIVE_NODES | MPOL_F_NUMA_BALANCING)
+
+/* Flags for get_mempolicy */
+#define MPOL_F_NODE (1<<0) /* return next IL mode instead of node mask */
+#define MPOL_F_ADDR (1<<1) /* look up vma using address */
+#define MPOL_F_MEMS_ALLOWED (1<<2) /* return allowed memories */
+
+/* Flags for mbind */
+#define MPOL_MF_STRICT (1<<0) /* Verify existing pages in the mapping */
+#define MPOL_MF_MOVE (1<<1) /* Move pages owned by this process to conform
+ to policy */
+#define MPOL_MF_MOVE_ALL (1<<2) /* Move every page to conform to policy */
+#define MPOL_MF_LAZY (1<<3) /* UNSUPPORTED FLAG: Lazy migrate on fault */
+#define MPOL_MF_INTERNAL (1<<4) /* Internal flags start here */
+
+#define MPOL_MF_VALID (MPOL_MF_STRICT | \
+ MPOL_MF_MOVE | \
+ MPOL_MF_MOVE_ALL)
+
+/*
+ * Internal flags that share the struct mempolicy flags word with
+ * "mode flags". These flags are allocated from bit 0 up, as they
+ * are never OR'ed into the mode in mempolicy API arguments.
+ */
+#define MPOL_F_SHARED (1 << 0) /* identify shared policies */
+#define MPOL_F_MOF (1 << 3) /* this policy wants migrate on fault */
+#define MPOL_F_MORON (1 << 4) /* Migrate On protnone Reference On Node */
+
+/*
+ * These bit locations are exposed in the vm.zone_reclaim_mode sysctl
+ * ABI. New bits are OK, but existing bits can never change.
+ */
+#define RECLAIM_ZONE (1<<0) /* Run shrink_inactive_list on the zone */
+#define RECLAIM_WRITE (1<<1) /* Writeout pages during reclaim */
+#define RECLAIM_UNMAP (1<<2) /* Unmap pages during reclaim */
+
+#endif /* _LINUX_MEMPOLICY_H */
--- /dev/null
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
+#ifndef _LINUX_SCHED_TYPES_H
+#define _LINUX_SCHED_TYPES_H
+
+#include <linux/types.h>
+
+#define SCHED_ATTR_SIZE_VER0 48 /* sizeof first published struct */
+#define SCHED_ATTR_SIZE_VER1 56 /* add: util_{min,max} */
+
+/*
+ * Extended scheduling parameters data structure.
+ *
+ * This is needed because the original struct sched_param can not be
+ * altered without introducing ABI issues with legacy applications
+ * (e.g., in sched_getparam()).
+ *
+ * However, the possibility of specifying more than just a priority for
+ * the tasks may be useful for a wide variety of application fields, e.g.,
+ * multimedia, streaming, automation and control, and many others.
+ *
+ * This variant (sched_attr) allows to define additional attributes to
+ * improve the scheduler knowledge about task requirements.
+ *
+ * Scheduling Class Attributes
+ * ===========================
+ *
+ * A subset of sched_attr attributes specifies the
+ * scheduling policy and relative POSIX attributes:
+ *
+ * @size size of the structure, for fwd/bwd compat.
+ *
+ * @sched_policy task's scheduling policy
+ * @sched_nice task's nice value (SCHED_NORMAL/BATCH)
+ * @sched_priority task's static priority (SCHED_FIFO/RR)
+ *
+ * Certain more advanced scheduling features can be controlled by a
+ * predefined set of flags via the attribute:
+ *
+ * @sched_flags for customizing the scheduler behaviour
+ *
+ * Sporadic Time-Constrained Task Attributes
+ * =========================================
+ *
+ * A subset of sched_attr attributes allows to describe a so-called
+ * sporadic time-constrained task.
+ *
+ * In such a model a task is specified by:
+ * - the activation period or minimum instance inter-arrival time;
+ * - the maximum (or average, depending on the actual scheduling
+ * discipline) computation time of all instances, a.k.a. runtime;
+ * - the deadline (relative to the actual activation time) of each
+ * instance.
+ * Very briefly, a periodic (sporadic) task asks for the execution of
+ * some specific computation --which is typically called an instance--
+ * (at most) every period. Moreover, each instance typically lasts no more
+ * than the runtime and must be completed by time instant t equal to
+ * the instance activation time + the deadline.
+ *
+ * This is reflected by the following fields of the sched_attr structure:
+ *
+ * @sched_deadline representative of the task's deadline in nanoseconds
+ * @sched_runtime representative of the task's runtime in nanoseconds
+ * @sched_period representative of the task's period in nanoseconds
+ *
+ * Given this task model, there are a multiplicity of scheduling algorithms
+ * and policies, that can be used to ensure all the tasks will make their
+ * timing constraints.
+ *
+ * As of now, the SCHED_DEADLINE policy (sched_dl scheduling class) is the
+ * only user of this new interface. More information about the algorithm
+ * available in the scheduling class file or in Documentation/.
+ *
+ * Task Utilization Attributes
+ * ===========================
+ *
+ * A subset of sched_attr attributes allows to specify the utilization
+ * expected for a task. These attributes allow to inform the scheduler about
+ * the utilization boundaries within which it should schedule the task. These
+ * boundaries are valuable hints to support scheduler decisions on both task
+ * placement and frequency selection.
+ *
+ * @sched_util_min represents the minimum utilization
+ * @sched_util_max represents the maximum utilization
+ *
+ * Utilization is a value in the range [0..SCHED_CAPACITY_SCALE]. It
+ * represents the percentage of CPU time used by a task when running at the
+ * maximum frequency on the highest capacity CPU of the system. For example, a
+ * 20% utilization task is a task running for 2ms every 10ms at maximum
+ * frequency.
+ *
+ * A task with a min utilization value bigger than 0 is more likely scheduled
+ * on a CPU with a capacity big enough to fit the specified value.
+ * A task with a max utilization value smaller than 1024 is more likely
+ * scheduled on a CPU with no more capacity than the specified value.
+ *
+ * A task utilization boundary can be reset by setting the attribute to -1.
+ */
+struct sched_attr {
+ __u32 size;
+
+ __u32 sched_policy;
+ __u64 sched_flags;
+
+ /* SCHED_NORMAL, SCHED_BATCH */
+ __s32 sched_nice;
+
+ /* SCHED_FIFO, SCHED_RR */
+ __u32 sched_priority;
+
+ /* SCHED_DEADLINE */
+ __u64 sched_runtime;
+ __u64 sched_deadline;
+ __u64 sched_period;
+
+ /* Utilization hints */
+ __u32 sched_util_min;
+ __u32 sched_util_max;
+
+};
+
+#endif /* _LINUX_SCHED_TYPES_H */
--- /dev/null
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
+/*
+ File: linux/xattr.h
+
+ Extended attributes handling.
+
+ Copyright (C) 2001 by Andreas Gruenbacher <a.gruenbacher@computer.org>
+ Copyright (c) 2001-2002 Silicon Graphics, Inc. All Rights Reserved.
+ Copyright (c) 2004 Red Hat, Inc., James Morris <jmorris@redhat.com>
+ Copyright (c) 2020 Jan (janneke) Nieuwenhuizen <janneke@gnu.org>
+*/
+
+#include <linux/libc-compat.h>
+#include <linux/types.h>
+
+#ifndef _LINUX_XATTR_H
+#define _LINUX_XATTR_H
+
+#if __UAPI_DEF_XATTR
+#define __USE_KERNEL_XATTR_DEFS
+
+#define XATTR_CREATE 0x1 /* set value, fail if attr already exists */
+#define XATTR_REPLACE 0x2 /* set value, fail if attr does not exist */
+
+struct xattr_args {
+ __aligned_u64 value;
+ __u32 size;
+ __u32 flags;
+};
+#endif
+
+/* Namespaces */
+#define XATTR_OS2_PREFIX "os2."
+#define XATTR_OS2_PREFIX_LEN (sizeof(XATTR_OS2_PREFIX) - 1)
+
+#define XATTR_MAC_OSX_PREFIX "osx."
+#define XATTR_MAC_OSX_PREFIX_LEN (sizeof(XATTR_MAC_OSX_PREFIX) - 1)
+
+#define XATTR_BTRFS_PREFIX "btrfs."
+#define XATTR_BTRFS_PREFIX_LEN (sizeof(XATTR_BTRFS_PREFIX) - 1)
+
+#define XATTR_HURD_PREFIX "gnu."
+#define XATTR_HURD_PREFIX_LEN (sizeof(XATTR_HURD_PREFIX) - 1)
+
+#define XATTR_SECURITY_PREFIX "security."
+#define XATTR_SECURITY_PREFIX_LEN (sizeof(XATTR_SECURITY_PREFIX) - 1)
+
+#define XATTR_SYSTEM_PREFIX "system."
+#define XATTR_SYSTEM_PREFIX_LEN (sizeof(XATTR_SYSTEM_PREFIX) - 1)
+
+#define XATTR_TRUSTED_PREFIX "trusted."
+#define XATTR_TRUSTED_PREFIX_LEN (sizeof(XATTR_TRUSTED_PREFIX) - 1)
+
+#define XATTR_USER_PREFIX "user."
+#define XATTR_USER_PREFIX_LEN (sizeof(XATTR_USER_PREFIX) - 1)
+
+/* Security namespace */
+#define XATTR_EVM_SUFFIX "evm"
+#define XATTR_NAME_EVM XATTR_SECURITY_PREFIX XATTR_EVM_SUFFIX
+
+#define XATTR_IMA_SUFFIX "ima"
+#define XATTR_NAME_IMA XATTR_SECURITY_PREFIX XATTR_IMA_SUFFIX
+
+#define XATTR_SELINUX_SUFFIX "selinux"
+#define XATTR_NAME_SELINUX XATTR_SECURITY_PREFIX XATTR_SELINUX_SUFFIX
+
+#define XATTR_SMACK_SUFFIX "SMACK64"
+#define XATTR_SMACK_IPIN "SMACK64IPIN"
+#define XATTR_SMACK_IPOUT "SMACK64IPOUT"
+#define XATTR_SMACK_EXEC "SMACK64EXEC"
+#define XATTR_SMACK_TRANSMUTE "SMACK64TRANSMUTE"
+#define XATTR_SMACK_MMAP "SMACK64MMAP"
+#define XATTR_NAME_SMACK XATTR_SECURITY_PREFIX XATTR_SMACK_SUFFIX
+#define XATTR_NAME_SMACKIPIN XATTR_SECURITY_PREFIX XATTR_SMACK_IPIN
+#define XATTR_NAME_SMACKIPOUT XATTR_SECURITY_PREFIX XATTR_SMACK_IPOUT
+#define XATTR_NAME_SMACKEXEC XATTR_SECURITY_PREFIX XATTR_SMACK_EXEC
+#define XATTR_NAME_SMACKTRANSMUTE XATTR_SECURITY_PREFIX XATTR_SMACK_TRANSMUTE
+#define XATTR_NAME_SMACKMMAP XATTR_SECURITY_PREFIX XATTR_SMACK_MMAP
+
+#define XATTR_APPARMOR_SUFFIX "apparmor"
+#define XATTR_NAME_APPARMOR XATTR_SECURITY_PREFIX XATTR_APPARMOR_SUFFIX
+
+#define XATTR_CAPS_SUFFIX "capability"
+#define XATTR_NAME_CAPS XATTR_SECURITY_PREFIX XATTR_CAPS_SUFFIX
+
+#define XATTR_BPF_LSM_SUFFIX "bpf."
+#define XATTR_NAME_BPF_LSM (XATTR_SECURITY_PREFIX XATTR_BPF_LSM_SUFFIX)
+#define XATTR_NAME_BPF_LSM_LEN (sizeof(XATTR_NAME_BPF_LSM) - 1)
+
+#define XATTR_POSIX_ACL_ACCESS "posix_acl_access"
+#define XATTR_NAME_POSIX_ACL_ACCESS XATTR_SYSTEM_PREFIX XATTR_POSIX_ACL_ACCESS
+#define XATTR_POSIX_ACL_DEFAULT "posix_acl_default"
+#define XATTR_NAME_POSIX_ACL_DEFAULT XATTR_SYSTEM_PREFIX XATTR_POSIX_ACL_DEFAULT
+
+
+#endif /* _LINUX_XATTR_H */
--- /dev/null
+/* SPDX-License-Identifier: LGPL-2.1-or-later */
+#pragma once
+
+/* To make struct xattr_args defined, which is used by setxattrat(). Note, the kernel header must be
+ * included before the glibc header, otherwise the struct will not be defined. */
+#include <linux/xattr.h>
+
+#include_next <sys/xattr.h>
/* SPDX-License-Identifier: LGPL-2.1-or-later */
#pragma once
-#include <linux/types.h>
+/* sched.h includes linux/sched/types.h since glibc-2.41 (21571ca0d70302909cf72707b2a7736cf12190a0),
+ * to make struct sched_attr being defined.
+ * Note, this must be included before sched.h, otherwise the headers conflict with each other. */
+#include <linux/sched/types.h>
#include <sched.h> /* IWYU pragma: export */
#include "forward.h"
#else
assert_cc(TASK_COMM_LEN == 16);
#endif
-
-#if !HAVE_STRUCT_SCHED_ATTR
-struct sched_attr {
- __u32 size; /* Size of this structure */
- __u32 sched_policy; /* Policy (SCHED_*) */
- __u64 sched_flags; /* Flags */
- __s32 sched_nice; /* Nice value (SCHED_OTHER,
- SCHED_BATCH) */
- __u32 sched_priority; /* Static priority (SCHED_FIFO,
- SCHED_RR) */
- /* Remaining fields are for SCHED_DEADLINE
- and potentially soon for SCHED_OTHER/SCHED_BATCH */
- __u64 sched_runtime;
- __u64 sched_deadline;
- __u64 sched_period;
-};
-#endif
/* Missing glibc definitions to access certain kernel APIs */
+#include <linux/mempolicy.h>
#include <signal.h>
#include <sys/syscall.h>
+#include <sys/xattr.h>
#include <unistd.h>
#ifdef ARCH_MIPS
/* ======================================================================= */
#if !HAVE_SET_MEMPOLICY
-enum {
- MPOL_DEFAULT,
- MPOL_PREFERRED,
- MPOL_BIND,
- MPOL_INTERLEAVE,
- MPOL_LOCAL,
-};
-
static inline long missing_set_mempolicy(int mode, const unsigned long *nodemask,
unsigned long maxnode) {
return syscall(__NR_set_mempolicy, mode, nodemask, maxnode);
#if !HAVE_SETXATTRAT
/* since kernel v6.13 (6140be90ec70c39fa844741ca3cc807dd0866394) */
-struct xattr_args {
- _align_(8) uint64_t value;
- uint32_t size;
- uint32_t flags;
-};
-
static inline int missing_setxattrat(int fd, const char *path, int at_flags, const char *name, const struct xattr_args *args, size_t size) {
return syscall(__NR_setxattrat, fd, path, at_flags, name, args, size);
}
projects / thirdparty / systemd.git / commitdiff
