@@ -9,6 +9,10 @@ Version 2.34
Major new features:
+* When _SC_THREAD_STACK_MIN_SOURCE or _GNU_SOURCE are defined,
+ PTHREAD_STACK_MIN is no longer constant and is redefined to
+ sysconf(_SC_THREAD_STACK_MIN).
+
* Add _SC_MINSIGSTKSZ and _SC_SIGSTKSZ. When _SC_SIGSTKSZ_SOURCE or
_GNU_SOURCE are defined, MINSIGSTKSZ and SIGSTKSZ are no longer
constant on Linux. MINSIGSTKSZ is redefined to sysconf(_SC_MINSIGSTKSZ)
new file mode 100644
@@ -0,0 +1,7 @@
+/* Don't define PTHREAD_STACK_MIN to sysconf (_SC_THREAD_STACK_MIN) for
+ glibc build. */
+#if !defined _ISOMAC
+# undef __USE_SC_THREAD_STACK_MIN
+#endif
+
+#include_next <bits/local_lim.h>
@@ -52,6 +52,8 @@
_ATFILE_SOURCE Additional *at interfaces.
_SC_SIGSTKSZ_SOURCE Select correct (but non compile-time constant)
MINSIGSTKSZ and SIGSTKSZ.
+ _SC_THREAD_STACK_MIN_SOURCE Select correct (but non compile-time
+ constant) PTHREAD_STACK_MIN.
_GNU_SOURCE All of the above, plus GNU extensions.
_DEFAULT_SOURCE The default set of features (taking precedence over
__STRICT_ANSI__).
@@ -222,6 +224,8 @@
# define _ATFILE_SOURCE 1
# undef _SC_SIGSTKSZ_SOURCE
# define _SC_SIGSTKSZ_SOURCE 1
+# undef _SC_THREAD_STACK_MIN_SOURCE
+# define _SC_THREAD_STACK_MIN_SOURCE 1
#endif
/* If nothing (other than _GNU_SOURCE and _DEFAULT_SOURCE) is defined,
@@ -403,6 +407,10 @@
# define __USE_SC_SIGSTKSZ 1
#endif
+#ifdef _SC_THREAD_STACK_MIN_SOURCE
+# define __USE_SC_THREAD_STACK_MIN 1
+#endif
+
#ifdef _GNU_SOURCE
# define __USE_GNU 1
#endif
@@ -23,6 +23,7 @@
#include <stdio.h>
#include <stdlib.h>
#include <ucontext.h>
+#include <support/support.h>
#define N 4
#if __WORDSIZE == 64
@@ -36,7 +37,8 @@ typedef struct {
unsigned long guard[3];
} tst_context_t;
-static char stacks[N][2 * PTHREAD_STACK_MIN];
+static char *stacks[N];
+static size_t stack_size;
static tst_context_t ctx[N][2];
static volatile int failures;
@@ -79,7 +81,7 @@ fct (long int n)
exit (1);
}
- if (on_stack < stacks[n] || on_stack >= stacks[n] + sizeof (stacks[0]))
+ if (on_stack < stacks[n] || on_stack >= stacks[n] + stack_size)
{
printf ("%ld: on_stack not on appropriate stack\n", n);
exit (1);
@@ -109,7 +111,7 @@ tf (void *arg)
printf ("%d: %s: before makecontext\n", n, __FUNCTION__);
ctx[n][1].uctx.uc_stack.ss_sp = stacks[n];
- ctx[n][1].uctx.uc_stack.ss_size = sizeof (stacks[n]);
+ ctx[n][1].uctx.uc_stack.ss_size = stack_size;
ctx[n][1].uctx.uc_link = &ctx[n][0].uctx;
makecontext (&ctx[n][1].uctx, (void (*) (void)) fct, 1, (long int) n);
@@ -137,6 +139,10 @@ do_test (void)
pthread_t th[N];
ucontext_t mctx;
+ stack_size = 2 * PTHREAD_STACK_MIN;
+ for (int i = 0; i < N; i++)
+ stacks[i] = xmalloc (stack_size);
+
puts ("making contexts");
if (getcontext (&mctx) != 0)
{
@@ -198,6 +204,9 @@ do_test (void)
exit (1);
}
+ for (int i = 0; i < N; i++)
+ free (stacks[i]);
+
return failures;
}
@@ -38,11 +38,6 @@
const size_t kNumThreads = 1024;
const size_t kNumHandlers = 1024;
-const size_t kStacksize =
-#ifdef PTHREAD_STACK_MIN
- 0x20000 < PTHREAD_STACK_MIN ? PTHREAD_STACK_MIN :
-#endif
- 0x20000;
static void *
threadfunc (void *unused)
@@ -66,6 +61,12 @@ do_test (void)
/* With default 8MiB Linux stack size, creating 1024 threads can cause
VM exhausiton on 32-bit machines. Reduce stack size of each thread to
128KiB for a maximum required VM size of 128MiB. */
+ size_t kStacksize =
+#ifdef PTHREAD_STACK_MIN
+ 0x20000 < PTHREAD_STACK_MIN ? PTHREAD_STACK_MIN :
+#endif
+ 0x20000;
+
xpthread_attr_setstacksize (&attr, kStacksize);
for (i = 0; i < kNumThreads; ++i) {
new file mode 100644
@@ -0,0 +1,29 @@
+/* sysconf_pthread_stack_min (). POSIX version.
+ Copyright (C) 2021 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, see
+ <https://www.gnu.org/licenses/>. */
+
+/* Return sysconf (_SC_THREAD_STACK_MIN). */
+
+static long int
+sysconf_pthread_stack_min (void)
+{
+#ifdef PTHREAD_STACK_MIN
+ return PTHREAD_STACK_MIN;
+#else
+ return -1;
+#endif
+}
@@ -31,6 +31,7 @@
#include <sys/types.h>
#include <sys/uio.h>
#include <regex.h>
+#include <sysconf-pthread_stack_min.h>
#define NEED_SPEC_ARRAY 0
#include <posix-conf-vars.h>
@@ -569,11 +570,7 @@ __sysconf (int name)
#endif
case _SC_THREAD_STACK_MIN:
-#ifdef PTHREAD_STACK_MIN
- return PTHREAD_STACK_MIN;
-#else
- return -1;
-#endif
+ return sysconf_pthread_stack_min ();
case _SC_THREAD_THREADS_MAX:
#ifdef PTHREAD_THREADS_MAX
@@ -107,7 +107,8 @@ sysdep_headers += sys/mount.h sys/acct.h \
bits/types/struct_semid64_ds.h \
bits/types/struct_semid64_ds_helper.h \
bits/types/struct_shmid64_ds.h \
- bits/types/struct_shmid64_ds_helper.h
+ bits/types/struct_shmid64_ds_helper.h \
+ bits/pthread_stack_min.h
tests += tst-clone tst-clone2 tst-clone3 tst-fanotify tst-personality \
tst-quota tst-sync_file_range tst-sysconf-iov_max tst-ttyname \
deleted file mode 100644
@@ -1,101 +0,0 @@
-/* Minimum guaranteed maximum values for system limits. Linux version.
- Copyright (C) 1993-2021 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, see
- <https://www.gnu.org/licenses/>. */
-
-/* The kernel header pollutes the namespace with the NR_OPEN symbol
- and defines LINK_MAX although filesystems have different maxima. A
- similar thing is true for OPEN_MAX: the limit can be changed at
- runtime and therefore the macro must not be defined. Remove this
- after including the header if necessary. */
-#ifndef NR_OPEN
-# define __undef_NR_OPEN
-#endif
-#ifndef LINK_MAX
-# define __undef_LINK_MAX
-#endif
-#ifndef OPEN_MAX
-# define __undef_OPEN_MAX
-#endif
-#ifndef ARG_MAX
-# define __undef_ARG_MAX
-#endif
-
-/* The kernel sources contain a file with all the needed information. */
-#include <linux/limits.h>
-
-/* Have to remove NR_OPEN? */
-#ifdef __undef_NR_OPEN
-# undef NR_OPEN
-# undef __undef_NR_OPEN
-#endif
-/* Have to remove LINK_MAX? */
-#ifdef __undef_LINK_MAX
-# undef LINK_MAX
-# undef __undef_LINK_MAX
-#endif
-/* Have to remove OPEN_MAX? */
-#ifdef __undef_OPEN_MAX
-# undef OPEN_MAX
-# undef __undef_OPEN_MAX
-#endif
-/* Have to remove ARG_MAX? */
-#ifdef __undef_ARG_MAX
-# undef ARG_MAX
-# undef __undef_ARG_MAX
-#endif
-
-/* The number of data keys per process. */
-#define _POSIX_THREAD_KEYS_MAX 128
-/* This is the value this implementation supports. */
-#define PTHREAD_KEYS_MAX 1024
-
-/* Controlling the iterations of destructors for thread-specific data. */
-#define _POSIX_THREAD_DESTRUCTOR_ITERATIONS 4
-/* Number of iterations this implementation does. */
-#define PTHREAD_DESTRUCTOR_ITERATIONS _POSIX_THREAD_DESTRUCTOR_ITERATIONS
-
-/* The number of threads per process. */
-#define _POSIX_THREAD_THREADS_MAX 64
-/* We have no predefined limit on the number of threads. */
-#undef PTHREAD_THREADS_MAX
-
-/* Maximum amount by which a process can descrease its asynchronous I/O
- priority level. */
-#define AIO_PRIO_DELTA_MAX 20
-
-/* Minimum size for a thread. At least two pages for systems with 64k
- pages. */
-#define PTHREAD_STACK_MIN 131072
-
-/* Maximum number of timer expiration overruns. */
-#define DELAYTIMER_MAX 2147483647
-
-/* Maximum tty name length. */
-#define TTY_NAME_MAX 32
-
-/* Maximum login name length. This is arbitrary. */
-#define LOGIN_NAME_MAX 256
-
-/* Maximum host name length. */
-#define HOST_NAME_MAX 64
-
-/* Maximum message queue priority level. */
-#define MQ_PRIO_MAX 32768
-
-/* Maximum value the semaphore can have. */
-#define SEM_VALUE_MAX (2147483647)
new file mode 100644
@@ -0,0 +1,22 @@
+/* Definition of PTHREAD_STACK_MIN. Linux/aarch64 version.
+ Copyright (C) 2021 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, see
+ <https://www.gnu.org/licenses/>. */
+
+/* Minimum size for a thread. At least two pages for systems with 64k
+ pages. */
+#define PTHREAD_STACK_MIN 131072
deleted file mode 100644
@@ -1,99 +0,0 @@
-/* Minimum guaranteed maximum values for system limits. Linux/Alpha version.
- Copyright (C) 1993-2021 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 Library General Public License as
- published by the Free Software Foundation; either version 2 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
- Library General Public License for more details.
-
- You should have received a copy of the GNU Library General Public
- License along with the GNU C Library. If not, see
- <https://www.gnu.org/licenses/>. */
-
-/* The kernel header pollutes the namespace with the NR_OPEN symbol
- and defines LINK_MAX although filesystems have different maxima. A
- similar thing is true for OPEN_MAX: the limit can be changed at
- runtime and therefore the macro must not be defined. Remove this
- after including the header if necessary. */
-#ifndef NR_OPEN
-# define __undef_NR_OPEN
-#endif
-#ifndef LINK_MAX
-# define __undef_LINK_MAX
-#endif
-#ifndef OPEN_MAX
-# define __undef_OPEN_MAX
-#endif
-#ifndef ARG_MAX
-# define __undef_ARG_MAX
-#endif
-
-/* The kernel sources contain a file with all the needed information. */
-#include <linux/limits.h>
-
-/* Have to remove NR_OPEN? */
-#ifdef __undef_NR_OPEN
-# undef NR_OPEN
-# undef __undef_NR_OPEN
-#endif
-/* Have to remove LINK_MAX? */
-#ifdef __undef_LINK_MAX
-# undef LINK_MAX
-# undef __undef_LINK_MAX
-#endif
-/* Have to remove OPEN_MAX? */
-#ifdef __undef_OPEN_MAX
-# undef OPEN_MAX
-# undef __undef_OPEN_MAX
-#endif
-/* Have to remove ARG_MAX? */
-#ifdef __undef_ARG_MAX
-# undef ARG_MAX
-# undef __undef_ARG_MAX
-#endif
-
-/* The number of data keys per process. */
-#define _POSIX_THREAD_KEYS_MAX 128
-/* This is the value this implementation supports. */
-#define PTHREAD_KEYS_MAX 1024
-
-/* Controlling the iterations of destructors for thread-specific data. */
-#define _POSIX_THREAD_DESTRUCTOR_ITERATIONS 4
-/* Number of iterations this implementation does. */
-#define PTHREAD_DESTRUCTOR_ITERATIONS _POSIX_THREAD_DESTRUCTOR_ITERATIONS
-
-/* The number of threads per process. */
-#define _POSIX_THREAD_THREADS_MAX 64
-/* We have no predefined limit on the number of threads. */
-#undef PTHREAD_THREADS_MAX
-
-/* Maximum amount by which a process can descrease its asynchronous I/O
- priority level. */
-#define AIO_PRIO_DELTA_MAX 20
-
-/* Minimum size for a thread. We are free to choose a reasonable value. */
-#define PTHREAD_STACK_MIN 24576
-
-/* Maximum number of timer expiration overruns. */
-#define DELAYTIMER_MAX 2147483647
-
-/* Maximum tty name length. */
-#define TTY_NAME_MAX 32
-
-/* Maximum login name length. This is arbitrary. */
-#define LOGIN_NAME_MAX 256
-
-/* Maximum host name length. */
-#define HOST_NAME_MAX 64
-
-/* Maximum message queue priority level. */
-#define MQ_PRIO_MAX 32768
-
-/* Maximum value the semaphore can have. */
-#define SEM_VALUE_MAX (2147483647)
new file mode 100644
@@ -0,0 +1,20 @@
+/* Definition of PTHREAD_STACK_MIN. Linux/Alpha version.
+ Copyright (C) 2021 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 Library General Public License as
+ published by the Free Software Foundation; either version 2 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
+ Library General Public License for more details.
+
+ You should have received a copy of the GNU Library General Public
+ License along with the GNU C Library. If not, see
+ <https://www.gnu.org/licenses/>. */
+
+/* Minimum size for a thread. We are free to choose a reasonable value. */
+#define PTHREAD_STACK_MIN 24576
@@ -78,7 +78,13 @@
#define AIO_PRIO_DELTA_MAX 20
/* Minimum size for a thread. We are free to choose a reasonable value. */
-#define PTHREAD_STACK_MIN 16384
+#undef PTHREAD_STACK_MIN
+#if defined __USE_SC_THREAD_STACK_MIN && __USE_SC_THREAD_STACK_MIN
+# include <unistd.h>
+# define PTHREAD_STACK_MIN sysconf (_SC_THREAD_STACK_MIN)
+#else
+# include <bits/pthread_stack_min.h>
+#endif
/* Maximum number of timer expiration overruns. */
#define DELAYTIMER_MAX 2147483647
new file mode 100644
@@ -0,0 +1,20 @@
+/* Definition of PTHREAD_STACK_MIN. Linux version.
+ Copyright (C) 2021 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, see
+ <https://www.gnu.org/licenses/>. */
+
+/* Minimum size for a thread. We are free to choose a reasonable value. */
+#define PTHREAD_STACK_MIN 16384
deleted file mode 100644
@@ -1,99 +0,0 @@
-/* Minimum guaranteed maximum values for system limits. Linux/IA-64 version.
- Copyright (C) 1993-2021 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, see
- <https://www.gnu.org/licenses/>. */
-
-/* The kernel header pollutes the namespace with the NR_OPEN symbol
- and defines LINK_MAX although filesystems have different maxima. A
- similar thing is true for OPEN_MAX: the limit can be changed at
- runtime and therefore the macro must not be defined. Remove this
- after including the header if necessary. */
-#ifndef NR_OPEN
-# define __undef_NR_OPEN
-#endif
-#ifndef LINK_MAX
-# define __undef_LINK_MAX
-#endif
-#ifndef OPEN_MAX
-# define __undef_OPEN_MAX
-#endif
-#ifndef ARG_MAX
-# define __undef_ARG_MAX
-#endif
-
-/* The kernel sources contain a file with all the needed information. */
-#include <linux/limits.h>
-
-/* Have to remove NR_OPEN? */
-#ifdef __undef_NR_OPEN
-# undef NR_OPEN
-# undef __undef_NR_OPEN
-#endif
-/* Have to remove LINK_MAX? */
-#ifdef __undef_LINK_MAX
-# undef LINK_MAX
-# undef __undef_LINK_MAX
-#endif
-/* Have to remove OPEN_MAX? */
-#ifdef __undef_OPEN_MAX
-# undef OPEN_MAX
-# undef __undef_OPEN_MAX
-#endif
-/* Have to remove ARG_MAX? */
-#ifdef __undef_ARG_MAX
-# undef ARG_MAX
-# undef __undef_ARG_MAX
-#endif
-
-/* The number of data keys per process. */
-#define _POSIX_THREAD_KEYS_MAX 128
-/* This is the value this implementation supports. */
-#define PTHREAD_KEYS_MAX 1024
-
-/* Controlling the iterations of destructors for thread-specific data. */
-#define _POSIX_THREAD_DESTRUCTOR_ITERATIONS 4
-/* Number of iterations this implementation does. */
-#define PTHREAD_DESTRUCTOR_ITERATIONS _POSIX_THREAD_DESTRUCTOR_ITERATIONS
-
-/* The number of threads per process. */
-#define _POSIX_THREAD_THREADS_MAX 64
-/* We have no predefined limit on the number of threads. */
-#undef PTHREAD_THREADS_MAX
-
-/* Maximum amount by which a process can descrease its asynchronous I/O
- priority level. */
-#define AIO_PRIO_DELTA_MAX 20
-
-/* Minimum size for a thread. We are free to choose a reasonable value. */
-#define PTHREAD_STACK_MIN 196608
-
-/* Maximum number of timer expiration overruns. */
-#define DELAYTIMER_MAX 2147483647
-
-/* Maximum tty name length. */
-#define TTY_NAME_MAX 32
-
-/* Maximum login name length. This is arbitrary. */
-#define LOGIN_NAME_MAX 256
-
-/* Maximum host name length. */
-#define HOST_NAME_MAX 64
-
-/* Maximum message queue priority level. */
-#define MQ_PRIO_MAX 32768
-
-/* Maximum value the semaphore can have. */
-#define SEM_VALUE_MAX (2147483647)
new file mode 100644
@@ -0,0 +1,20 @@
+/* Definition of PTHREAD_STACK_MIN. Linux/IA-64 version.
+ Copyright (C) 2021 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, see
+ <https://www.gnu.org/licenses/>. */
+
+/* Minimum size for a thread. We are free to choose a reasonable value. */
+#define PTHREAD_STACK_MIN 196608
deleted file mode 100644
@@ -1,99 +0,0 @@
-/* Minimum guaranteed maximum values for system limits. MIPS Linux version.
- Copyright (C) 1993-2021 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, see
- <https://www.gnu.org/licenses/>. */
-
-/* The kernel header pollutes the namespace with the NR_OPEN symbol
- and defines LINK_MAX although filesystems have different maxima. A
- similar thing is true for OPEN_MAX: the limit can be changed at
- runtime and therefore the macro must not be defined. Remove this
- after including the header if necessary. */
-#ifndef NR_OPEN
-# define __undef_NR_OPEN
-#endif
-#ifndef LINK_MAX
-# define __undef_LINK_MAX
-#endif
-#ifndef OPEN_MAX
-# define __undef_OPEN_MAX
-#endif
-#ifndef ARG_MAX
-# define __undef_ARG_MAX
-#endif
-
-/* The kernel sources contain a file with all the needed information. */
-#include <linux/limits.h>
-
-/* Have to remove NR_OPEN? */
-#ifdef __undef_NR_OPEN
-# undef NR_OPEN
-# undef __undef_NR_OPEN
-#endif
-/* Have to remove LINK_MAX? */
-#ifdef __undef_LINK_MAX
-# undef LINK_MAX
-# undef __undef_LINK_MAX
-#endif
-/* Have to remove OPEN_MAX? */
-#ifdef __undef_OPEN_MAX
-# undef OPEN_MAX
-# undef __undef_OPEN_MAX
-#endif
-/* Have to remove ARG_MAX? */
-#ifdef __undef_ARG_MAX
-# undef ARG_MAX
-# undef __undef_ARG_MAX
-#endif
-
-/* The number of data keys per process. */
-#define _POSIX_THREAD_KEYS_MAX 128
-/* This is the value this implementation supports. */
-#define PTHREAD_KEYS_MAX 1024
-
-/* Controlling the iterations of destructors for thread-specific data. */
-#define _POSIX_THREAD_DESTRUCTOR_ITERATIONS 4
-/* Number of iterations this implementation does. */
-#define PTHREAD_DESTRUCTOR_ITERATIONS _POSIX_THREAD_DESTRUCTOR_ITERATIONS
-
-/* The number of threads per process. */
-#define _POSIX_THREAD_THREADS_MAX 64
-/* We have no predefined limit on the number of threads. */
-#undef PTHREAD_THREADS_MAX
-
-/* Maximum amount by which a process can descrease its asynchronous I/O
- priority level. */
-#define AIO_PRIO_DELTA_MAX 20
-
-/* Minimum size for a thread. At least two pages with 64k pages. */
-#define PTHREAD_STACK_MIN 131072
-
-/* Maximum number of timer expiration overruns. */
-#define DELAYTIMER_MAX 2147483647
-
-/* Maximum tty name length. */
-#define TTY_NAME_MAX 32
-
-/* Maximum login name length. This is arbitrary. */
-#define LOGIN_NAME_MAX 256
-
-/* Maximum host name length. */
-#define HOST_NAME_MAX 64
-
-/* Maximum message queue priority level. */
-#define MQ_PRIO_MAX 32768
-
-/* Maximum value the semaphore can have. */
-#define SEM_VALUE_MAX (2147483647)
new file mode 100644
@@ -0,0 +1,20 @@
+/* Definition of PTHREAD_STACK_MIN. MIPS Linux version.
+ Copyright (C) 2021 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, see
+ <https://www.gnu.org/licenses/>. */
+
+/* Minimum size for a thread. At least two pages with 64k pages. */
+#define PTHREAD_STACK_MIN 131072
deleted file mode 100644
@@ -1,100 +0,0 @@
-/* Minimum guaranteed maximum values for system limits. Linux/PPC version.
- Copyright (C) 1993-2021 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; see the file COPYING.LIB. If
- not, see <https://www.gnu.org/licenses/>. */
-
-/* The kernel header pollutes the namespace with the NR_OPEN symbol
- and defines LINK_MAX although filesystems have different maxima. A
- similar thing is true for OPEN_MAX: the limit can be changed at
- runtime and therefore the macro must not be defined. Remove this
- after including the header if necessary. */
-#ifndef NR_OPEN
-# define __undef_NR_OPEN
-#endif
-#ifndef LINK_MAX
-# define __undef_LINK_MAX
-#endif
-#ifndef OPEN_MAX
-# define __undef_OPEN_MAX
-#endif
-#ifndef ARG_MAX
-# define __undef_ARG_MAX
-#endif
-
-/* The kernel sources contain a file with all the needed information. */
-#include <linux/limits.h>
-
-/* Have to remove NR_OPEN? */
-#ifdef __undef_NR_OPEN
-# undef NR_OPEN
-# undef __undef_NR_OPEN
-#endif
-/* Have to remove LINK_MAX? */
-#ifdef __undef_LINK_MAX
-# undef LINK_MAX
-# undef __undef_LINK_MAX
-#endif
-/* Have to remove OPEN_MAX? */
-#ifdef __undef_OPEN_MAX
-# undef OPEN_MAX
-# undef __undef_OPEN_MAX
-#endif
-/* Have to remove ARG_MAX? */
-#ifdef __undef_ARG_MAX
-# undef ARG_MAX
-# undef __undef_ARG_MAX
-#endif
-
-/* The number of data keys per process. */
-#define _POSIX_THREAD_KEYS_MAX 128
-/* This is the value this implementation supports. */
-#define PTHREAD_KEYS_MAX 1024
-
-/* Controlling the iterations of destructors for thread-specific data. */
-#define _POSIX_THREAD_DESTRUCTOR_ITERATIONS 4
-/* Number of iterations this implementation does. */
-#define PTHREAD_DESTRUCTOR_ITERATIONS _POSIX_THREAD_DESTRUCTOR_ITERATIONS
-
-/* The number of threads per process. */
-#define _POSIX_THREAD_THREADS_MAX 64
-/* We have no predefined limit on the number of threads. */
-#undef PTHREAD_THREADS_MAX
-
-/* Maximum amount by which a process can descrease its asynchronous I/O
- priority level. */
-#define AIO_PRIO_DELTA_MAX 20
-
-/* Minimum size for a thread. At least two pages for systems with 64k
- pages. */
-#define PTHREAD_STACK_MIN 131072
-
-/* Maximum number of timer expiration overruns. */
-#define DELAYTIMER_MAX 2147483647
-
-/* Maximum tty name length. */
-#define TTY_NAME_MAX 32
-
-/* Maximum login name length. This is arbitrary. */
-#define LOGIN_NAME_MAX 256
-
-/* Maximum host name length. */
-#define HOST_NAME_MAX 64
-
-/* Maximum message queue priority level. */
-#define MQ_PRIO_MAX 32768
-
-/* Maximum value the semaphore can have. */
-#define SEM_VALUE_MAX (2147483647)
new file mode 100644
@@ -0,0 +1,21 @@
+/* Definition of PTHREAD_STACK_MIN. Linux/PPC version.
+ Copyright (C) 2021 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; see the file COPYING.LIB. If
+ not, see <https://www.gnu.org/licenses/>. */
+
+/* Minimum size for a thread. At least two pages for systems with 64k
+ pages. */
+#define PTHREAD_STACK_MIN 131072
deleted file mode 100644
@@ -1,99 +0,0 @@
-/* Minimum guaranteed maximum values for system limits. Linux/SPARC version.
- Copyright (C) 1993-2021 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 Library General Public License as
- published by the Free Software Foundation; either version 2 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
- Library General Public License for more details.
-
- You should have received a copy of the GNU Library General Public
- License along with the GNU C Library; see the file COPYING.LIB. If
- not, see <https://www.gnu.org/licenses/>. */
-
-/* The kernel header pollutes the namespace with the NR_OPEN symbol
- and defines LINK_MAX although filesystems have different maxima. A
- similar thing is true for OPEN_MAX: the limit can be changed at
- runtime and therefore the macro must not be defined. Remove this
- after including the header if necessary. */
-#ifndef NR_OPEN
-# define __undef_NR_OPEN
-#endif
-#ifndef LINK_MAX
-# define __undef_LINK_MAX
-#endif
-#ifndef OPEN_MAX
-# define __undef_OPEN_MAX
-#endif
-#ifndef ARG_MAX
-# define __undef_ARG_MAX
-#endif
-
-/* The kernel sources contain a file with all the needed information. */
-#include <linux/limits.h>
-
-/* Have to remove NR_OPEN? */
-#ifdef __undef_NR_OPEN
-# undef NR_OPEN
-# undef __undef_NR_OPEN
-#endif
-/* Have to remove LINK_MAX? */
-#ifdef __undef_LINK_MAX
-# undef LINK_MAX
-# undef __undef_LINK_MAX
-#endif
-/* Have to remove OPEN_MAX? */
-#ifdef __undef_OPEN_MAX
-# undef OPEN_MAX
-# undef __undef_OPEN_MAX
-#endif
-/* Have to remove ARG_MAX? */
-#ifdef __undef_ARG_MAX
-# undef ARG_MAX
-# undef __undef_ARG_MAX
-#endif
-
-/* The number of data keys per process. */
-#define _POSIX_THREAD_KEYS_MAX 128
-/* This is the value this implementation supports. */
-#define PTHREAD_KEYS_MAX 1024
-
-/* Controlling the iterations of destructors for thread-specific data. */
-#define _POSIX_THREAD_DESTRUCTOR_ITERATIONS 4
-/* Number of iterations this implementation does. */
-#define PTHREAD_DESTRUCTOR_ITERATIONS _POSIX_THREAD_DESTRUCTOR_ITERATIONS
-
-/* The number of threads per process. */
-#define _POSIX_THREAD_THREADS_MAX 64
-/* We have no predefined limit on the number of threads. */
-#undef PTHREAD_THREADS_MAX
-
-/* Maximum amount by which a process can descrease its asynchronous I/O
- priority level. */
-#define AIO_PRIO_DELTA_MAX 20
-
-/* Minimum size for a thread. We are free to choose a reasonable value. */
-#define PTHREAD_STACK_MIN 24576
-
-/* Maximum number of timer expiration overruns. */
-#define DELAYTIMER_MAX 2147483647
-
-/* Maximum tty name length. */
-#define TTY_NAME_MAX 32
-
-/* Maximum login name length. This is arbitrary. */
-#define LOGIN_NAME_MAX 256
-
-/* Maximum host name length. */
-#define HOST_NAME_MAX 64
-
-/* Maximum message queue priority level. */
-#define MQ_PRIO_MAX 32768
-
-/* Maximum value the semaphore can have. */
-#define SEM_VALUE_MAX (2147483647)
new file mode 100644
@@ -0,0 +1,20 @@
+/* Definition of PTHREAD_STACK_MIN. Linux/SPARC version.
+ Copyright (C) 2021 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 Library General Public License as
+ published by the Free Software Foundation; either version 2 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
+ Library General Public License for more details.
+
+ You should have received a copy of the GNU Library General Public
+ License along with the GNU C Library; see the file COPYING.LIB. If
+ not, see <https://www.gnu.org/licenses/>. */
+
+/* Minimum size for a thread. We are free to choose a reasonable value. */
+#define PTHREAD_STACK_MIN 24576
new file mode 100644
@@ -0,0 +1,33 @@
+/* sysconf_pthread_stack_min (). Linux version.
+ Copyright (C) 2021 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, see
+ <https://www.gnu.org/licenses/>. */
+
+/* Return sysconf (_SC_THREAD_STACK_MIN). */
+
+static long int
+sysconf_pthread_stack_min (void)
+{
+ /* sysconf (_SC_THREAD_STACK_MIN) >= sysconf (_SC_MINSIGSTKSZ). */
+ long int pthread_stack_min = GLRO(dl_minsigstacksize);
+ assert (pthread_stack_min != 0);
+ _Static_assert (__builtin_constant_p (PTHREAD_STACK_MIN),
+ "PTHREAD_STACK_MIN is constant");
+ /* Return MAX (PTHREAD_STACK_MIN, pthread_stack_min). */
+ if (pthread_stack_min < PTHREAD_STACK_MIN)
+ pthread_stack_min = PTHREAD_STACK_MIN;
+ return pthread_stack_min;
+}