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-rw-r--r--meta/recipes-core/uclibc/uclibc-git/uclibc_scheduler_update.patch455
1 files changed, 455 insertions, 0 deletions
diff --git a/meta/recipes-core/uclibc/uclibc-git/uclibc_scheduler_update.patch b/meta/recipes-core/uclibc/uclibc-git/uclibc_scheduler_update.patch
new file mode 100644
index 000000000..78401bd2a
--- /dev/null
+++ b/meta/recipes-core/uclibc/uclibc-git/uclibc_scheduler_update.patch
@@ -0,0 +1,455 @@
+From 2becc16ecbef71c496644d9dc6cbd7383d7cdca3 Mon Sep 17 00:00:00 2001
+From: Henning Heinold <heinold@inf.fu-berlin.de>
+Date: Sat, 4 Jun 2011 21:21:41 +0200
+Subject: [PATCH 1/2] libc: updates the linux scheduler functions, most stuff
+ was taken from the eglibc
+
+
+Signed-off-by: Henning Heinold <heinold@inf.fu-berlin.de>
+---
+ include/sched.h | 52 ++++++++++++----
+ libc/sysdeps/linux/common/Makefile.in | 4 +-
+ libc/sysdeps/linux/common/bits/sched.h | 96 +++++++++++++++++++++++-----
+ libc/sysdeps/linux/common/sched_cpualloc.c | 27 ++++++++
+ libc/sysdeps/linux/common/sched_cpucount.c | 60 +++++++++++++++++
+ libc/sysdeps/linux/common/sched_cpufree.c | 27 ++++++++
+ libc/sysdeps/linux/common/sched_getcpu.c | 37 +++++++++++
+ libc/sysdeps/linux/common/unshare.c | 12 ++++
+ 8 files changed, 286 insertions(+), 29 deletions(-)
+ create mode 100644 libc/sysdeps/linux/common/sched_cpualloc.c
+ create mode 100644 libc/sysdeps/linux/common/sched_cpucount.c
+ create mode 100644 libc/sysdeps/linux/common/sched_cpufree.c
+ create mode 100644 libc/sysdeps/linux/common/sched_getcpu.c
+ create mode 100644 libc/sysdeps/linux/common/unshare.c
+
+diff --git a/include/sched.h b/include/sched.h
+index 0d110c3..e265b84 100644
+--- a/include/sched.h
++++ b/include/sched.h
+@@ -1,5 +1,5 @@
+ /* Definitions for POSIX 1003.1b-1993 (aka POSIX.4) scheduling interface.
+- Copyright (C) 1996,1997,1999,2001-2003,2004 Free Software Foundation, Inc.
++ Copyright (C) 1996,1997,1999,2001-2004,2007 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+@@ -25,6 +25,9 @@
+ /* Get type definitions. */
+ #include <bits/types.h>
+
++#define __need_size_t
++#include <stddef.h>
++
+ #define __need_timespec
+ #include <time.h>
+
+@@ -65,11 +68,42 @@ extern int sched_rr_get_interval (__pid_t __pid, struct timespec *__t) __THROW;
+
+ #if defined __USE_GNU && defined __UCLIBC_LINUX_SPECIFIC__
+ /* Access macros for `cpu_set'. */
+-#define CPU_SETSIZE __CPU_SETSIZE
+-#define CPU_SET(cpu, cpusetp) __CPU_SET (cpu, cpusetp)
+-#define CPU_CLR(cpu, cpusetp) __CPU_CLR (cpu, cpusetp)
+-#define CPU_ISSET(cpu, cpusetp) __CPU_ISSET (cpu, cpusetp)
+-#define CPU_ZERO(cpusetp) __CPU_ZERO (cpusetp)
++# define CPU_SETSIZE __CPU_SETSIZE
++# define CPU_SET(cpu, cpusetp) __CPU_SET_S (cpu, sizeof (cpu_set_t), cpusetp)
++# define CPU_CLR(cpu, cpusetp) __CPU_CLR_S (cpu, sizeof (cpu_set_t), cpusetp)
++# define CPU_ISSET(cpu, cpusetp) __CPU_ISSET_S (cpu, sizeof (cpu_set_t), \
++ cpusetp)
++# define CPU_ZERO(cpusetp) __CPU_ZERO_S (sizeof (cpu_set_t), cpusetp)
++# define CPU_COUNT(cpusetp) __CPU_COUNT_S (sizeof (cpu_set_t), cpusetp)
++
++# define CPU_SET_S(cpu, setsize, cpusetp) __CPU_SET_S (cpu, setsize, cpusetp)
++# define CPU_CLR_S(cpu, setsize, cpusetp) __CPU_CLR_S (cpu, setsize, cpusetp)
++# define CPU_ISSET_S(cpu, setsize, cpusetp) __CPU_ISSET_S (cpu, setsize, \
++ cpusetp)
++# define CPU_ZERO_S(setsize, cpusetp) __CPU_ZERO_S (setsize, cpusetp)
++# define CPU_COUNT_S(setsize, cpusetp) __CPU_COUNT_S (setsize, cpusetp)
++
++# define CPU_EQUAL(cpusetp1, cpusetp2) \
++ __CPU_EQUAL_S (sizeof (cpu_set_t), cpusetp1, cpusetp2)
++# define CPU_EQUAL_S(setsize, cpusetp1, cpusetp2) \
++ __CPU_EQUAL_S (setsize, cpusetp1, cpusetp2)
++
++# define CPU_AND(destset, srcset1, srcset2) \
++ __CPU_OP_S (sizeof (cpu_set_t), destset, srcset1, srcset2, &)
++# define CPU_OR(destset, srcset1, srcset2) \
++ __CPU_OP_S (sizeof (cpu_set_t), destset, srcset1, srcset2, |)
++# define CPU_XOR(destset, srcset1, srcset2) \
++ __CPU_OP_S (sizeof (cpu_set_t), destset, srcset1, srcset2, ^)
++# define CPU_AND_S(setsize, destset, srcset1, srcset2) \
++ __CPU_OP_S (setsize, destset, srcset1, srcset2, &)
++# define CPU_OR_S(setsize, destset, srcset1, srcset2) \
++ __CPU_OP_S (setsize, destset, srcset1, srcset2, |)
++# define CPU_XOR_S(setsize, destset, srcset1, srcset2) \
++ __CPU_OP_S (setsize, destset, srcset1, srcset2, ^)
++
++# define CPU_ALLOC_SIZE(count) __CPU_ALLOC_SIZE (count)
++# define CPU_ALLOC(count) __CPU_ALLOC (count)
++# define CPU_FREE(cpuset) __CPU_FREE (cpuset)
+
+
+ /* Set the CPU affinity for a task */
+@@ -79,12 +113,6 @@ extern int sched_setaffinity (__pid_t __pid, size_t __cpusetsize,
+ /* Get the CPU affinity for a task */
+ extern int sched_getaffinity (__pid_t __pid, size_t __cpusetsize,
+ cpu_set_t *__cpuset) __THROW;
+-
+-extern int __clone (int (*__fn) (void *__arg), void *__child_stack,
+- int __flags, void *__arg, ...);
+-extern int __clone2 (int (*__fn) (void *__arg), void *__child_stack_base,
+- size_t __child_stack_size, int __flags, void *__arg, ...);
+-
+ #endif
+
+ __END_DECLS
+diff --git a/libc/sysdeps/linux/common/Makefile.in b/libc/sysdeps/linux/common/Makefile.in
+index 8f936ff..cb8c153 100644
+--- a/libc/sysdeps/linux/common/Makefile.in
++++ b/libc/sysdeps/linux/common/Makefile.in
+@@ -22,9 +22,11 @@ CSRC-$(UCLIBC_LINUX_SPECIFIC) += capget.c capset.c inotify.c ioperm.c iopl.c \
+ modify_ldt.c pipe2.c personality.c ppoll.c prctl.c \
+ readahead.c reboot.c \
+ remap_file_pages.c sched_getaffinity.c sched_setaffinity.c \
++ sched_cpualloc.c sched_cpucount.c sched_cpufree.c \
+ sendfile64.c sendfile.c setfsgid.c setfsuid.c setresuid.c \
+ splice.c vmsplice.c tee.c signalfd.c swapoff.c swapon.c \
+- sync_file_range.c sysctl.c sysinfo.c timerfd.c uselib.c vhangup.c
++ sync_file_range.c sysctl.c sysinfo.c timerfd.c unshare.c \
++ uselib.c vhangup.c
+ # NPTL needs these internally: madvise.c
+ CSRC-$(findstring y,$(UCLIBC_LINUX_SPECIFIC)$(UCLIBC_HAS_THREADS_NATIVE)) += madvise.c
+ ifeq ($(UCLIBC_HAS_THREADS_NATIVE),y)
+diff --git a/libc/sysdeps/linux/common/bits/sched.h b/libc/sysdeps/linux/common/bits/sched.h
+index b48a0c8..fea66a8 100644
+--- a/libc/sysdeps/linux/common/bits/sched.h
++++ b/libc/sysdeps/linux/common/bits/sched.h
+@@ -1,6 +1,7 @@
+ /* Definitions of constants and data structure for POSIX 1003.1b-1993
+ scheduling interface.
+- Copyright (C) 1996-1999,2001-2003,2005,2006 Free Software Foundation, Inc.
++ Copyright (C) 1996-1999,2001-2003,2005,2006,2007,2008
++ Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+@@ -58,7 +59,13 @@
+ force CLONE_PTRACE on this clone. */
+ # define CLONE_CHILD_SETTID 0x01000000 /* Store TID in userlevel buffer in
+ the child. */
+-# define CLONE_STOPPED 0x02000000 /* Start in stopped state. */
++# define CLONE_STOPPED 0x02000000 /* Start in stopped state. */
++# define CLONE_NEWUTS 0x04000000 /* New utsname group. */
++# define CLONE_NEWIPC 0x08000000 /* New ipcs. */
++# define CLONE_NEWUSER 0x10000000 /* New user namespace. */
++# define CLONE_NEWPID 0x20000000 /* New pid namespace. */
++# define CLONE_NEWNET 0x40000000 /* New network namespace. */
++# define CLONE_IO 0x80000000 /* Clone I/O context. */
+ #endif
+
+ /* The official definition. */
+@@ -74,10 +81,11 @@ __BEGIN_DECLS
+ extern int clone (int (*__fn) (void *__arg), void *__child_stack,
+ int __flags, void *__arg, ...) __THROW;
+
+-#if 0
+ /* Unshare the specified resources. */
+ extern int unshare (int __flags) __THROW;
+-#endif
++
++/* Get index of currently used CPU. */
++extern int sched_getcpu (void) __THROW;
+ #endif
+
+ __END_DECLS
+@@ -102,7 +110,7 @@ struct __sched_param
+ # define __CPU_SETSIZE 1024
+ # define __NCPUBITS (8 * sizeof (__cpu_mask))
+
+-/* Type for array elements in 'cpu_set'. */
++/* Type for array elements in 'cpu_set_t'. */
+ typedef unsigned long int __cpu_mask;
+
+ /* Basic access functions. */
+@@ -116,17 +124,73 @@ typedef struct
+ } cpu_set_t;
+
+ /* Access functions for CPU masks. */
+-# define __CPU_ZERO(cpusetp) \
++# define __CPU_ZERO_S(setsize, cpusetp) \
+ do { \
+- unsigned int __i; \
+- cpu_set_t *__arr = (cpusetp); \
+- for (__i = 0; __i < sizeof (cpu_set_t) / sizeof (__cpu_mask); ++__i) \
+- __arr->__bits[__i] = 0; \
++ size_t __i; \
++ size_t __imax = (setsize) / sizeof (__cpu_mask); \
++ __cpu_mask *__bits = (cpusetp)->__bits; \
++ for (__i = 0; __i < __imax; ++__i) \
++ __bits[__i] = 0; \
+ } while (0)
+-# define __CPU_SET(cpu, cpusetp) \
+- ((cpusetp)->__bits[__CPUELT (cpu)] |= __CPUMASK (cpu))
+-# define __CPU_CLR(cpu, cpusetp) \
+- ((cpusetp)->__bits[__CPUELT (cpu)] &= ~__CPUMASK (cpu))
+-# define __CPU_ISSET(cpu, cpusetp) \
+- (((cpusetp)->__bits[__CPUELT (cpu)] & __CPUMASK (cpu)) != 0)
++# define __CPU_SET_S(cpu, setsize, cpusetp) \
++ (__extension__ \
++ ({ size_t __cpu = (cpu); \
++ __cpu < 8 * (setsize) \
++ ? (((__cpu_mask *) ((cpusetp)->__bits))[__CPUELT (__cpu)] \
++ |= __CPUMASK (__cpu)) \
++ : 0; }))
++# define __CPU_CLR_S(cpu, setsize, cpusetp) \
++ (__extension__ \
++ ({ size_t __cpu = (cpu); \
++ __cpu < 8 * (setsize) \
++ ? (((__cpu_mask *) ((cpusetp)->__bits))[__CPUELT (__cpu)] \
++ &= ~__CPUMASK (__cpu)) \
++ : 0; }))
++# define __CPU_ISSET_S(cpu, setsize, cpusetp) \
++ (__extension__ \
++ ({ size_t __cpu = (cpu); \
++ __cpu < 8 * (setsize) \
++ ? ((((__cpu_mask *) ((cpusetp)->__bits))[__CPUELT (__cpu)] \
++ & __CPUMASK (__cpu))) != 0 \
++ : 0; }))
++
++# define __CPU_COUNT_S(setsize, cpusetp) \
++ __sched_cpucount (setsize, cpusetp)
++
++# define __CPU_EQUAL_S(setsize, cpusetp1, cpusetp2) \
++ (__extension__ \
++ ({ __cpu_mask *__arr1 = (cpusetp1)->__bits; \
++ __cpu_mask *__arr2 = (cpusetp2)->__bits; \
++ size_t __imax = (setsize) / sizeof (__cpu_mask); \
++ size_t __i; \
++ for (__i = 0; __i < __imax; ++__i) \
++ if (__arr1[__i] != __arr2[__i]) \
++ break; \
++ __i == __imax; }))
++
++# define __CPU_OP_S(setsize, destset, srcset1, srcset2, op) \
++ (__extension__ \
++ ({ cpu_set_t *__dest = (destset); \
++ __cpu_mask *__arr1 = (srcset1)->__bits; \
++ __cpu_mask *__arr2 = (srcset2)->__bits; \
++ size_t __imax = (setsize) / sizeof (__cpu_mask); \
++ size_t __i; \
++ for (__i = 0; __i < __imax; ++__i) \
++ ((__cpu_mask *) __dest->__bits)[__i] = __arr1[__i] op __arr2[__i]; \
++ __dest; }))
++
++# define __CPU_ALLOC_SIZE(count) \
++ ((((count) + __NCPUBITS - 1) / __NCPUBITS) * sizeof (__cpu_mask))
++# define __CPU_ALLOC(count) __sched_cpualloc (count)
++# define __CPU_FREE(cpuset) __sched_cpufree (cpuset)
++
++__BEGIN_DECLS
++
++extern int __sched_cpucount (size_t __setsize, const cpu_set_t *__setp)
++ __THROW;
++extern cpu_set_t *__sched_cpualloc (size_t __count) __THROW __wur;
++extern void __sched_cpufree (cpu_set_t *__set) __THROW;
++
++__END_DECLS
++
+ #endif
+diff --git a/libc/sysdeps/linux/common/sched_cpualloc.c b/libc/sysdeps/linux/common/sched_cpualloc.c
+new file mode 100644
+index 0000000..2642a80
+--- /dev/null
++++ b/libc/sysdeps/linux/common/sched_cpualloc.c
+@@ -0,0 +1,27 @@
++/* Copyright (C) 2007 Free Software Foundation, Inc.
++ This file is part of the GNU C Library.
++
++ The GNU C Library is free software; you can redistribute it and/or
++ modify it under the terms of the GNU Lesser General Public
++ License as published by the Free Software Foundation; either
++ version 2.1 of the License, or (at your option) any later version.
++
++ The GNU C Library is distributed in the hope that it will be useful,
++ but WITHOUT ANY WARRANTY; without even the implied warranty of
++ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
++ Lesser General Public License for more details.
++
++ You should have received a copy of the GNU Lesser General Public
++ License along with the GNU C Library; if not, write to the Free
++ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
++ 02111-1307 USA. */
++
++#include <sched.h>
++#include <stdlib.h>
++
++
++cpu_set_t *
++__sched_cpualloc (size_t count)
++{
++ return malloc (CPU_ALLOC_SIZE (count));
++}
+diff --git a/libc/sysdeps/linux/common/sched_cpucount.c b/libc/sysdeps/linux/common/sched_cpucount.c
+new file mode 100644
+index 0000000..331c0b8
+--- /dev/null
++++ b/libc/sysdeps/linux/common/sched_cpucount.c
+@@ -0,0 +1,60 @@
++/* Copyright (C) 2007 Free Software Foundation, Inc.
++ This file is part of the GNU C Library.
++
++ The GNU C Library is free software; you can redistribute it and/or
++ modify it under the terms of the GNU Lesser General Public
++ License as published by the Free Software Foundation; either
++ version 2.1 of the License, or (at your option) any later version.
++
++ The GNU C Library is distributed in the hope that it will be useful,
++ but WITHOUT ANY WARRANTY; without even the implied warranty of
++ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
++ Lesser General Public License for more details.
++
++ You should have received a copy of the GNU Lesser General Public
++ License along with the GNU C Library; if not, write to the Free
++ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
++ 02111-1307 USA. */
++
++#include <limits.h>
++#include <sched.h>
++
++
++int
++__sched_cpucount (size_t setsize, const cpu_set_t *setp)
++{
++ int s = 0;
++ const __cpu_mask *p = setp->__bits;
++ const __cpu_mask *end = &setp->__bits[setsize / sizeof (__cpu_mask)];
++
++ while (p < end)
++ {
++ __cpu_mask l = *p++;
++
++#ifdef POPCNT
++ s += POPCNT (l);
++#else
++ if (l == 0)
++ continue;
++
++# if LONG_BIT > 32
++ l = (l & 0x5555555555555555ul) + ((l >> 1) & 0x5555555555555555ul);
++ l = (l & 0x3333333333333333ul) + ((l >> 2) & 0x3333333333333333ul);
++ l = (l & 0x0f0f0f0f0f0f0f0ful) + ((l >> 4) & 0x0f0f0f0f0f0f0f0ful);
++ l = (l & 0x00ff00ff00ff00fful) + ((l >> 8) & 0x00ff00ff00ff00fful);
++ l = (l & 0x0000ffff0000fffful) + ((l >> 16) & 0x0000ffff0000fffful);
++ l = (l & 0x00000000fffffffful) + ((l >> 32) & 0x00000000fffffffful);
++# else
++ l = (l & 0x55555555ul) + ((l >> 1) & 0x55555555ul);
++ l = (l & 0x33333333ul) + ((l >> 2) & 0x33333333ul);
++ l = (l & 0x0f0f0f0ful) + ((l >> 4) & 0x0f0f0f0ful);
++ l = (l & 0x00ff00fful) + ((l >> 8) & 0x00ff00fful);
++ l = (l & 0x0000fffful) + ((l >> 16) & 0x0000fffful);
++# endif
++
++ s += l;
++#endif
++ }
++
++ return s;
++}
+diff --git a/libc/sysdeps/linux/common/sched_cpufree.c b/libc/sysdeps/linux/common/sched_cpufree.c
+new file mode 100644
+index 0000000..dd4c613
+--- /dev/null
++++ b/libc/sysdeps/linux/common/sched_cpufree.c
+@@ -0,0 +1,27 @@
++/* Copyright (C) 2007 Free Software Foundation, Inc.
++ This file is part of the GNU C Library.
++
++ The GNU C Library is free software; you can redistribute it and/or
++ modify it under the terms of the GNU Lesser General Public
++ License as published by the Free Software Foundation; either
++ version 2.1 of the License, or (at your option) any later version.
++
++ The GNU C Library is distributed in the hope that it will be useful,
++ but WITHOUT ANY WARRANTY; without even the implied warranty of
++ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
++ Lesser General Public License for more details.
++
++ You should have received a copy of the GNU Lesser General Public
++ License along with the GNU C Library; if not, write to the Free
++ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
++ 02111-1307 USA. */
++
++#include <sched.h>
++#include <stdlib.h>
++
++
++void
++__sched_cpufree (cpu_set_t *set)
++{
++ free (set);
++}
+diff --git a/libc/sysdeps/linux/common/sched_getcpu.c b/libc/sysdeps/linux/common/sched_getcpu.c
+new file mode 100644
+index 0000000..b193d65
+--- /dev/null
++++ b/libc/sysdeps/linux/common/sched_getcpu.c
+@@ -0,0 +1,37 @@
++/* Copyright (C) 2007 Free Software Foundation, Inc.
++ This file is part of the GNU C Library.
++
++ The GNU C Library is free software; you can redistribute it and/or
++ modify it under the terms of the GNU Lesser General Public
++ License as published by the Free Software Foundation; either
++ version 2.1 of the License, or (at your option) any later version.
++
++ The GNU C Library is distributed in the hope that it will be useful,
++ but WITHOUT ANY WARRANTY; without even the implied warranty of
++ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
++ Lesser General Public License for more details.
++
++ You should have received a copy of the GNU Lesser General Public
++ License along with the GNU C Library; if not, write to the Free
++ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
++ 02111-1307 USA. */
++
++#include <stdlib.h>
++#include <errno.h>
++#include <sched.h>
++#include <sysdep.h>
++
++
++int
++sched_getcpu (void)
++{
++#ifdef __NR_getcpu
++ unsigned int cpu;
++ int r = INLINE_SYSCALL (getcpu, 3, &cpu, NULL, NULL);
++
++ return r == -1 ? r : cpu;
++#else
++ __set_errno (ENOSYS);
++ return -1;
++#endif
++}
+diff --git a/libc/sysdeps/linux/common/unshare.c b/libc/sysdeps/linux/common/unshare.c
+new file mode 100644
+index 0000000..485bf88
+--- /dev/null
++++ b/libc/sysdeps/linux/common/unshare.c
+@@ -0,0 +1,12 @@
++/* vi: set sw=4 ts=4: */
++/*
++ * unshare() for uClibc
++ *
++ * Copyright (C) 2011 Henning Heinold <heinold@inf.fu-berlin.de>
++ *
++ * Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball.
++ */
++
++#include <sys/syscall.h>
++#include <sched.h>
++_syscall1(int, unshare, int, flags)
+--
+1.7.5.3
+
generated by cgit v1.2.3 (git 2.39.1) at 2024-06-30 20:21:27 +0000