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authorUlrich Drepper <drepper@redhat.com>1998-03-11 12:42:25 +0000
committerUlrich Drepper <drepper@redhat.com>1998-03-11 12:42:25 +0000
commit5afdca0087dad2994ad4fcdfe7f489f4dbcab7b3 (patch)
treec9c82db2ff92537b921361a02a284b0e18a594b8 /linuxthreads/sysdeps
parent3d76e7784700c20fc222920b2a22baba006daa15 (diff)
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LinuxThreads library.
1998-03-11 00:42 Wolfram Gloger <wmglo@dent.med.uni-muenchen.de> * linuxthreads/manager.c: Enable resetting of the thread scheduling policy to SCHED_OTHER when the parent thread has a different one. 1998-02-01 13:51 Ulrich Drepper <drepper@cygnus.com> * sysdeps/unix/sysv/linux/bits/posix_opt.h: Define _POSIX_ASYNCHRONOUS_IO. * sysdeps/pthread/pthread.h: Define bits for Unix98 variants of mutexes. * mutex.c: Implement new mutex types. * internals.h: Include <signal.h>. * libpthread.map: Add __erno_location and __h_errno_location. * errno.c: Return pointer to variable actually in use. This might not be the one in the thread structure. * internals.h (struct _pthread_descr_struct): Add new fields p_errnop and p_h_errnop. * manager.c (__pthread_manager): Set p_errnop and p_h_errnop member of manager thread structure. (pthread_handle_create): Set p_errnop and p_h_errnop members for new thread. * pthread.c: Adapt initializer for thread structures. (__pthread_initial_thread): Set p_errnop and p_h_errnop member. (__pthread_reset_main_thread): Reset p_errnop and p_h_errnop of current thread to global variables. 1998-01-31 17:27 Ulrich Drepper <drepper@cygnus.com> * rwlock.c: New file. * Makefile (libpthread-routines): Add rwlock. * sysdeps/pthread/pthread.h: Define data structures and declare functions. * libpthread.map: Add new functions. 1997-12-18 13:50 Philip Blundell <pb@nexus.co.uk> * sysdeps/arm/pt-machine.h: New file; add ARM support. * sysdeps/arm/Implies: likewise. * README: Document it. 1997-12-13 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de> * signals.c: Remove unneeded initializer for sigwaited, saving a 1997-04-11 01:18 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de> * semaphore.c (sem_init): Set sem_spinlock only if available. 1997-12-04 01:48 Ulrich Drepper <drepper@cygnus.com> * mutex.c: Implement PTHREAD_MUTEX_CHECKERROR. * sysdeps/pthread/pthread.h: Define PTHREAD_MUTEX_CHECKERROR. * Makefile: Update from LinuxThreads 0.7. * internals.h. Likewise. * manager.c: Likewise. * mutex.c: Likewise. * pthread.c: Likewise. * signals.c: Likewise. * specific.c: Likewise. * Examples/ex3.c: Likewise. 1997-11-20 18:13 Ulrich Drepper <drepper@cygnus.com> * pthread.c (__pthread_reset_main_thread): Close pipe only if still open. 1997-10-29 05:38 Ulrich Drepper <drepper@cygnus.com> * wrapsyscall.c: Add socket functions which are also cancelation points. 1997-10-19 21:40 Wolfram Gloger <wg@wolfram.dent.med.uni-muenchen.de> * specific.c (__libc_internal_tsd_set, __libc_internal_tsd_get): New functions for fast thread specific data within libc. * internals.h: Add new array p_libc_specific to struct _pthread_descr_struct. * sysdeps/pthread/bits/libc-lock.h: Declare new functions. 1997-10-13 05:39 Ulrich Drepper <drepper@cygnus.com> * semaphore.h: Add __BEGIN_DECLS/__END_DECLS. Reported by Ralf Corsepius <corsepiu@faw.uni-ulm.de>. 1997-08-29 03:05 Ulrich Drepper <drepper@cygnus.com> * internals.h (struct _pthread_descr_struct): Add definitions for two-level specific key handling. * manager.c (pthread_handle_create): Initialize specific memory array. * specific.c: Implement two-level key handling. * weaks.c: Don't provide dummy key handling. * sysdeps/pthread/bits/libc-lock.h: Typedef __libc_lock_t (no #define). Add definition of __libc_key_t. * sysdeps/unix/sysv/linux/bits/local_lim.h: Define PTHREAD_KEYS_MAX as 1024. Add definition of _POSIX_THREAD_DESTRUCTOR_ITERATIONS and PTHREAD_DESTRUCTOR_ITERATIONS. * manager.c (pthread_handle_create): Compare mmap result with MAP_FAILED. * ptfork.c: Rename to __pthread_atfork and make old name a weak alias. * sysdeps/pthread/bits/pthread.h: Add prototype for __pthread_atfork. 1997-08-22 19:04 Richard Henderson <rth@cygnus.com> sysdeps/sparc -> sysdeps/sparc/sparc32 sysdeps/sparc64 -> sysdeps/sparc/sparc64 * internals.h: Change definition of THREAD_SELF to be an expression, not a statement that did a return. * sysdeps/alpha/pt-machine.h (THREAD_SELF): Update accordingly. * sysdeps/sparc/sparc32/pt-machine.h (THREAD_SELF, INIT_THREAD_SELF): Follow Solaris and use a "system reserved" register (%g6) to hold the thread descriptor. * sysdeps/sparc/sparc64/pt-machine.h: Likewise. 1997-08-03 00:09 Ulrich Drepper <drepper@cygnus.com> * mutex.c: Correct pthread_once. Patch by Xavier Leroy. * sysdeps/pthread/pthread.h: Add prototype for __pthread_once. * sysdeps/pthread/bits/pthread.h: Add macros for __libc_once. * semaphore.c: Include spinlock.h only when needed. * specific.c (__pthread_setsepcific, __pthread_getspecific): Reject keys for entries not in use. * weaks.c: Implement key handling functions for real. 1997-06-29 01:04 Richard Henderson <richard@gnu.ai.mit.edu> Initial sparc64-linux support: * linuxthreads/sysdeps/sparc64/Implies: New file. * linuxthreads/sysdeps/sparc64/pt-machine.h: Likewise. 1997-06-29 00:48 Ulrich Drepper <drepper@cygnus.com> * semaphore.c: Include spinlock.h at correct place. Patch by HJ Lu. 1997-06-13 10:06 Richard Henderson <rth@tamu.edu> The Great Bit File Move: * sysdeps/alpha/semaphorebits.h: -> .../bits/semaphore.h. * sysdeps/powerpc/semaphorebits.h: Likewise. * sysdeps/pthread/cmpxchg/semaphorebits.h: Likewise. * sysdeps/pthread/no-cmpxchg/semaphorebits.h: Likewise. * sysdeps/pthread/libc-lock.h: -> bits/ * sysdeps/pthread/stdio-lock.h: Likewise. * sysdeps/unix/sysv/linux/local_lim.h: Likewise. * sysdeps/unix/sysv/linux/posix_opt.h: Likewise. * semaphore.h: Likewise. * sysdeps/pthread/pthread.h: Likewise. * lockfile.c: <foo.h> -> <bits/foo.h>. * semaphore.h: Likewise. * Makefile: (headers): foo.h -> bits/foo.h. * sysdeps/pthread/Makefile: Likewise. 1997-04-11 01:18 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de> * semaphore.c (sem_init): Set sem_spinlock only if available. * sysdeps/m68k/pt-machine.h (testandset, __compare_and_swap): Fix asm constraints. 1997-04-09 03:00 Ulrich Drepper <drepper@cygnus.com> Update from LinuxThreads 0.6. * attr.c (pthread_attr_getdetachstate): Use __sched_get_priority_max and __sched_get_priority_min instead of names without `__'. * manager.c: Rewrite large parts to implement opaque pthread_t. * cancel.c: Adapt for opaque pthread_t type. * condvar.c: Likewise. * errno.c: Likewise. * join.c: Likewise. * mutex.c: Likewise. * pthread.c: Likewise. * signals.c: Likewise. * specific.c: Likewise. * restart.h: Likewise. * queue.h: Likewise. * Examples/ex3.c: Likewise. * Examples/ex4.c: Likewise. * sysdeps/pthread/pthread.h: Likewise. * pthread.c: Accumulate time for all threads in thread manager. * semaphore.c: Implement fallback implementation for architectures sometimes missing compare-exchange operations. * cancel.c (pthread_cancel): Validate handle argument. * join.c (pthread_join): Likewise. (pthread_detach): Likewise. * signals.c (pthread_kill): Likewise. * spinlock.h (acquire): Use __sched_yield not sched_yield. * queue.h (enqueue): Enqueue thread according to priority. * internals.c (struct pthread_start_args): New struct for passing args to cloning function. (struct _pthread): Rename to _pthread_descr_struct and adapt for opaque pthread_t. * Examples/Makefile (clean): Pass -f option to rm. * sysdeps/i386/pt-machine.h: Add check for compare-exchange instruction and define TEST_FOR_COMPARE_AND_SWAP. * sysdeps/i386/i486/pt-machine.h: Removed. * sysdeps/unix/sysv/linux/local_lim.h (PTHREAD_THREADS_MAX): Increase to 1024. 1997-04-04 16:38 Ulrich Drepper <drepper@cygnus.com> * restart.h (suspend): Clear p_signal before suspending. (suspend_with_cancellation): Likewise. Patch by Xavier Leroy <Xavier.Leroy@inria.fr>. * weaks.c: Make __pthread_key_create return 1. * sysdeps/pthread/libc-lock.h: Define __libc_key_create, __libc_getspecific, __libc_setspecific, and __libc_key_t. * sysdeps/pthread/stdio-lock.h: Don't care for implementation not using libio. 1997-03-19 15:13 Miguel de Icaza <miguel@nuclecu.unam.mx> * sysdeps/sparc/pt-machine (RELEASE): Fix. 1997-03-01 07:55 Geoff Keating <geoffk@ozemail.com.au> * sysdeps/powerpc/Implies: Added. * sysdeps/powerpc/pt-machine.h: Added. * sysdeps/powerpc/semaphorebits.h: Added. 1997-01-22 01:22 Ulrich Drepper <drepper@cygnus.com> * linuxtheads/pthread.c (__pthread_initial_thread): Correct initializer. (__pthread_manager_thread): Likewise. Reported by Andreas Jaeger. 1997-01-18 22:15 Richard Henderson <rth@tamu.edu> Since sigset_t no longer fits in a register, we can't pass in the thread's initial mask so easily. Take this opportunity to simplify the clone implementation by only accepting a single void* argument. * linuxthreads/manager.c (__pthread_manager): Put thread vitals in the thread struct instead of as arguments through clone. (pthread_start_thread): Look for them there. * linuxthreads/internals.h (struct _pthread): Add p_initial_fn, p_initial_fn_arg, p_initial_mask. Fix __pthread_manager proto. * linuxthreads/pthread.c (pthread_initialize_manager): Revise clone invocation.
Diffstat (limited to 'linuxthreads/sysdeps')
-rw-r--r--linuxthreads/sysdeps/alpha/bits/semaphore.h31
-rw-r--r--linuxthreads/sysdeps/alpha/pt-machine.h102
-rw-r--r--linuxthreads/sysdeps/arm/Implies1
-rw-r--r--linuxthreads/sysdeps/arm/pt-machine.h44
-rw-r--r--linuxthreads/sysdeps/i386/Implies1
-rw-r--r--linuxthreads/sysdeps/i386/pt-machine.h93
-rw-r--r--linuxthreads/sysdeps/m68k/Implies1
-rw-r--r--linuxthreads/sysdeps/m68k/pt-machine.h58
-rw-r--r--linuxthreads/sysdeps/mips/Implies1
-rw-r--r--linuxthreads/sysdeps/mips/pt-machine.h84
-rw-r--r--linuxthreads/sysdeps/powerpc/Implies1
-rw-r--r--linuxthreads/sysdeps/powerpc/bits/semaphore.h32
-rw-r--r--linuxthreads/sysdeps/powerpc/pt-machine.h84
-rw-r--r--linuxthreads/sysdeps/pthread/Makefile3
-rw-r--r--linuxthreads/sysdeps/pthread/bits/libc-lock.h208
-rw-r--r--linuxthreads/sysdeps/pthread/bits/stdio-lock.h35
-rw-r--r--linuxthreads/sysdeps/pthread/cmpxchg/bits/semaphore.h26
-rw-r--r--linuxthreads/sysdeps/pthread/no-cmpxchg/bits/semaphore.h27
-rw-r--r--linuxthreads/sysdeps/pthread/pthread.h578
-rw-r--r--linuxthreads/sysdeps/sparc/sparc32/Implies1
-rw-r--r--linuxthreads/sysdeps/sparc/sparc32/pt-machine.h55
-rw-r--r--linuxthreads/sysdeps/sparc/sparc64/Implies1
-rw-r--r--linuxthreads/sysdeps/sparc/sparc64/pt-machine.h67
-rw-r--r--linuxthreads/sysdeps/unix/sysv/linux/Implies1
-rw-r--r--linuxthreads/sysdeps/unix/sysv/linux/bits/local_lim.h40
-rw-r--r--linuxthreads/sysdeps/unix/sysv/linux/bits/posix_opt.h94
-rw-r--r--linuxthreads/sysdeps/unix/sysv/linux/configure3
27 files changed, 1672 insertions, 0 deletions
diff --git a/linuxthreads/sysdeps/alpha/bits/semaphore.h b/linuxthreads/sysdeps/alpha/bits/semaphore.h
new file mode 100644
index 0000000..323fea1
--- /dev/null
+++ b/linuxthreads/sysdeps/alpha/bits/semaphore.h
@@ -0,0 +1,31 @@
+/* Copyright (C) 1996, 1997 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,
+ write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ Boston, MA 02111-1307, USA. */
+
+#ifndef _SEMAPHORE_H
+# error "Never include <bits/semaphore.h> directly; use <semaphore.h> instead."
+#endif
+
+
+/* Due to the implementation of the load-locked/store-conditional
+ instructions, we cannot pack semaphores closer than a cache line
+ or risk threads deadlocking on unrelated semaphores. */
+
+typedef struct {
+ long int sem_status;
+ long int sem_reserved[3];
+} sem_t;
diff --git a/linuxthreads/sysdeps/alpha/pt-machine.h b/linuxthreads/sysdeps/alpha/pt-machine.h
new file mode 100644
index 0000000..a0c7cc7
--- /dev/null
+++ b/linuxthreads/sysdeps/alpha/pt-machine.h
@@ -0,0 +1,102 @@
+/* Machine-dependent pthreads configuration and inline functions.
+ Alpha version.
+ Copyright (C) 1996, 1997 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+ Contributed by Richard Henderson <rth@tamu.edu>.
+
+ 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,
+ write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ Boston, MA 02111-1307, USA. */
+
+#include <asm/pal.h>
+
+
+/* Spinlock implementation; required. */
+extern inline long testandset(int *spinlock)
+{
+ long ret, temp;
+
+ __asm__ __volatile__(
+ "/* Inline spinlock test & set */\n"
+ "1:\t"
+ "ldl_l %0,%3\n\t"
+ "bne %0,2f\n\t"
+ "or $31,1,%1\n\t"
+ "stl_c %1,%2\n\t"
+ "beq %1,1b\n"
+ "2:\tmb\n"
+ "/* End spinlock test & set */"
+ : "=&r"(ret), "=&r"(temp), "=m"(*spinlock)
+ : "m"(*spinlock)
+ : "memory");
+
+ return ret;
+}
+
+/* Spinlock release; default is just set to zero. */
+#define RELEASE(spinlock) \
+ __asm__ __volatile__("mb" : : : "memory"); \
+ *spinlock = 0
+
+
+/* Begin allocating thread stacks at this address. Default is to allocate
+ them just below the initial program stack. */
+#define THREAD_STACK_START_ADDRESS 0x40000000000
+
+
+/* Get some notion of the current stack. Need not be exactly the top
+ of the stack, just something somewhere in the current frame. */
+#define CURRENT_STACK_FRAME stack_pointer
+register char *stack_pointer __asm__("$30");
+
+
+/* Return the thread descriptor for the current thread. */
+#define THREAD_SELF \
+({ \
+ register pthread_descr __self __asm__("$0"); \
+ __asm__ ("call_pal %1" : "=r"(__self) : "i"(PAL_rduniq) : "$0"); \
+ __self; \
+})
+
+/* Initialize the thread-unique value. */
+#define INIT_THREAD_SELF(descr) \
+{ \
+ register pthread_descr __self __asm__("$16") = (descr); \
+ __asm__ __volatile__ ("call_pal %1" : : "r"(__self), "i"(PAL_wruniq)); \
+}
+
+
+/* Compare-and-swap for semaphores. */
+
+#define HAS_COMPARE_AND_SWAP
+extern inline int __compare_and_swap(long * p, long oldval, long newval)
+{
+ long ret;
+
+ __asm__ __volatile__ (
+ "/* Inline compare & swap */\n"
+ "1:\t"
+ "ldq_l %0,%4\n\t"
+ "cmpeq %0,%2,%0\n\t"
+ "beq %0,2f\n\t"
+ "mov %3,%0\n\t"
+ "stq_c %0,%1\n\t"
+ "beq %0,1b\n\t"
+ "2:\tmb\n"
+ "/* End compare & swap */"
+ : "=&r"(ret), "=m"(*p)
+ : "r"(oldval), "r"(newval), "m"(*p));
+
+ return ret;
+}
diff --git a/linuxthreads/sysdeps/arm/Implies b/linuxthreads/sysdeps/arm/Implies
new file mode 100644
index 0000000..7edcd7e
--- /dev/null
+++ b/linuxthreads/sysdeps/arm/Implies
@@ -0,0 +1 @@
+pthread/no-cmpxchg
diff --git a/linuxthreads/sysdeps/arm/pt-machine.h b/linuxthreads/sysdeps/arm/pt-machine.h
new file mode 100644
index 0000000..0b9bc01
--- /dev/null
+++ b/linuxthreads/sysdeps/arm/pt-machine.h
@@ -0,0 +1,44 @@
+/* Machine-dependent pthreads configuration and inline functions.
+ ARM version.
+ Copyright (C) 1997 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+ Contributed by Philip Blundell <philb@gnu.org>.
+
+ 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,
+ write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ Boston, MA 02111-1307, USA. */
+
+
+/* This will not work on ARM1 or ARM2 because SWP is lacking on those
+ machines. Unfortunately we have no way to detect this at compile
+ time; let's hope nobody tries to use one. */
+
+/* Spinlock implementation; required. */
+extern inline int
+testandset (int *spinlock)
+{
+ register unsigned int ret;
+
+ __asm__ __volatile__("swp %0, %1, [%2]"
+ : "=r"(ret)
+ : "0"(1), "r"(spinlock));
+
+ return ret;
+}
+
+
+/* Get some notion of the current stack. Need not be exactly the top
+ of the stack, just something somewhere in the current frame. */
+#define CURRENT_STACK_FRAME stack_pointer
+register char * stack_pointer __asm__ ("sp");
diff --git a/linuxthreads/sysdeps/i386/Implies b/linuxthreads/sysdeps/i386/Implies
new file mode 100644
index 0000000..7edcd7e
--- /dev/null
+++ b/linuxthreads/sysdeps/i386/Implies
@@ -0,0 +1 @@
+pthread/no-cmpxchg
diff --git a/linuxthreads/sysdeps/i386/pt-machine.h b/linuxthreads/sysdeps/i386/pt-machine.h
new file mode 100644
index 0000000..ef4df2a
--- /dev/null
+++ b/linuxthreads/sysdeps/i386/pt-machine.h
@@ -0,0 +1,93 @@
+/* Machine-dependent pthreads configuration and inline functions.
+ i386 version.
+ Copyright (C) 1996, 1997 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+ Contributed by Richard Henderson <rth@tamu.edu>.
+
+ 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,
+ write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ Boston, MA 02111-1307, USA. */
+
+
+/* Spinlock implementation; required. */
+extern inline int
+testandset (int *spinlock)
+{
+ int ret;
+
+ __asm__ __volatile__("xchgl %0, %1"
+ : "=r"(ret), "=m"(*spinlock)
+ : "0"(1), "m"(*spinlock));
+
+ return ret;
+}
+
+
+/* Get some notion of the current stack. Need not be exactly the top
+ of the stack, just something somewhere in the current frame. */
+#define CURRENT_STACK_FRAME stack_pointer
+register char * stack_pointer __asm__ ("%esp");
+
+
+/* Compare-and-swap for semaphores.
+ Available on the 486 and above, but not on the 386.
+ We test dynamically whether it's available or not. */
+
+#define HAS_COMPARE_AND_SWAP
+#define TEST_FOR_COMPARE_AND_SWAP
+
+extern inline int
+__compare_and_swap (long int *p, long int oldval, long int newval)
+{
+ char ret;
+ long int readval;
+
+ __asm__ __volatile__ ("lock; cmpxchgl %3, %1; sete %0"
+ : "=q" (ret), "=m" (*p), "=a" (readval)
+ : "r" (newval), "m" (*p), "a" (oldval));
+ return ret;
+}
+
+
+extern inline int
+get_eflags (void)
+{
+ int res;
+ __asm__ __volatile__ ("pushfl; popl %0" : "=r" (res) : );
+ return res;
+}
+
+
+extern inline void
+set_eflags (int newflags)
+{
+ __asm__ __volatile__ ("pushl %0; popfl" : : "r" (newflags) : "cc");
+}
+
+
+extern inline int
+compare_and_swap_is_available (void)
+{
+ int oldflags = get_eflags ();
+ int changed;
+ /* Flip AC bit in EFLAGS. */
+ set_eflags (oldflags ^ 0x40000);
+ /* See if bit changed. */
+ changed = (get_eflags () ^ oldflags) & 0x40000;
+ /* Restore EFLAGS. */
+ set_eflags (oldflags);
+ /* If the AC flag did not change, it's a 386 and it lacks cmpxchg.
+ Otherwise, it's a 486 or above and it has cmpxchg. */
+ return changed != 0;
+}
diff --git a/linuxthreads/sysdeps/m68k/Implies b/linuxthreads/sysdeps/m68k/Implies
new file mode 100644
index 0000000..81e9366
--- /dev/null
+++ b/linuxthreads/sysdeps/m68k/Implies
@@ -0,0 +1 @@
+pthread/cmpxchg
diff --git a/linuxthreads/sysdeps/m68k/pt-machine.h b/linuxthreads/sysdeps/m68k/pt-machine.h
new file mode 100644
index 0000000..c5c6cab
--- /dev/null
+++ b/linuxthreads/sysdeps/m68k/pt-machine.h
@@ -0,0 +1,58 @@
+/* Machine-dependent pthreads configuration and inline functions.
+ m68k version.
+ Copyright (C) 1996 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+ Contributed by Richard Henderson <rth@tamu.edu>.
+
+ 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, write to the Free Software Foundation, Inc.,
+ 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
+
+
+/* Spinlock implementation; required. */
+extern inline int
+testandset (int *spinlock)
+{
+ char ret;
+
+ __asm__ __volatile__("tas %1; sne %0"
+ : "=dm"(ret), "=m"(*spinlock)
+ : "m"(*spinlock)
+ : "cc");
+
+ return ret;
+}
+
+
+/* Get some notion of the current stack. Need not be exactly the top
+ of the stack, just something somewhere in the current frame. */
+#define CURRENT_STACK_FRAME stack_pointer
+register char * stack_pointer __asm__ ("%sp");
+
+
+/* Compare-and-swap for semaphores. */
+
+#define HAS_COMPARE_AND_SWAP
+extern inline int
+__compare_and_swap (long int *p, long int oldval, long int newval)
+{
+ char ret;
+ long int readval;
+
+ __asm__ __volatile__ ("casl %2, %3, %1; seq %0"
+ : "=dm" (ret), "=m" (*p), "=d" (readval)
+ : "d" (newval), "m" (*p), "2" (oldval));
+
+ return ret;
+}
diff --git a/linuxthreads/sysdeps/mips/Implies b/linuxthreads/sysdeps/mips/Implies
new file mode 100644
index 0000000..81e9366
--- /dev/null
+++ b/linuxthreads/sysdeps/mips/Implies
@@ -0,0 +1 @@
+pthread/cmpxchg
diff --git a/linuxthreads/sysdeps/mips/pt-machine.h b/linuxthreads/sysdeps/mips/pt-machine.h
new file mode 100644
index 0000000..d15da75
--- /dev/null
+++ b/linuxthreads/sysdeps/mips/pt-machine.h
@@ -0,0 +1,84 @@
+/* Machine-dependent pthreads configuration and inline functions.
+
+ Copyright (C) 1996, 1997 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+ Contributed by Ralf Baechle <ralf@gnu.ai.mit.edu>.
+ Based on the Alpha version by Richard Henderson <rth@tamu.edu>.
+
+ 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, write to the Free Software Foundation, Inc.,
+ 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+
+ TODO: This version makes use of MIPS ISA 2 features. It won't
+ work on ISA 1. These machines will have to take the overhead of
+ a sysmips(MIPS_ATOMIC_SET, ...) syscall which isn't implemented
+ yet correctly. There is however a better solution for R3000
+ uniprocessor machines possible. */
+
+
+/* Spinlock implementation; required. */
+extern inline long testandset(int *spinlock)
+{
+ long ret, temp;
+
+ __asm__ __volatile__(
+ "# Inline spinlock test & set\n\t"
+ ".set\tmips2\n"
+ "1:\tll\t%0,%3\n\t"
+ "bnez\t%0,2f\n\t"
+ ".set\tnoreorder\n\t"
+ "li\t%1,1\n\t"
+ ".set\treorder\n\t"
+ "sc\t%1,%2\n\t"
+ "beqz\t%1,1b\n"
+ "2:\t.set\tmips0\n\t"
+ "/* End spinlock test & set */"
+ : "=&r"(ret), "=&r" (temp), "=m"(*spinlock)
+ : "m"(*spinlock)
+ : "memory");
+
+ return ret;
+}
+
+
+/* Get some notion of the current stack. Need not be exactly the top
+ of the stack, just something somewhere in the current frame. */
+#define CURRENT_STACK_FRAME stack_pointer
+register char * stack_pointer __asm__ ("$29");
+
+
+/* Compare-and-swap for semaphores. */
+
+#define HAS_COMPARE_AND_SWAP
+extern inline int __compare_and_swap(long * p, long oldval, long newval)
+{
+ long ret;
+
+ __asm__ __volatile__ (
+ "/* Inline compare & swap */\n\t"
+ ".set\tmips2\n"
+ "1:\tll\t%0,%4\n\t"
+ ".set\tnoreorder\n\t"
+ "bne\t%0,%2,2f\n\t"
+ "move\t%0,%3\n\t"
+ ".set\treorder\n\t"
+ "sc\t%0,%1\n\t"
+ "beqz\t%0,1b\n"
+ "2:\t.set\tmips0\n\t"
+ "/* End compare & swap */"
+ : "=&r"(ret), "=m"(*p)
+ : "r"(oldval), "r"(newval), "m"(*p));
+
+ return ret;
+}
diff --git a/linuxthreads/sysdeps/powerpc/Implies b/linuxthreads/sysdeps/powerpc/Implies
new file mode 100644
index 0000000..81e9366
--- /dev/null
+++ b/linuxthreads/sysdeps/powerpc/Implies
@@ -0,0 +1 @@
+pthread/cmpxchg
diff --git a/linuxthreads/sysdeps/powerpc/bits/semaphore.h b/linuxthreads/sysdeps/powerpc/bits/semaphore.h
new file mode 100644
index 0000000..3770eed
--- /dev/null
+++ b/linuxthreads/sysdeps/powerpc/bits/semaphore.h
@@ -0,0 +1,32 @@
+/* Copyright (C) 1996, 1997 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,
+ write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ Boston, MA 02111-1307, USA. */
+
+#ifndef _SEMAPHORE_H
+# error "Never include <bits/semaphore.h> directly; use <semaphore.h> instead."
+#endif
+
+
+/* Due to the implementation of the load-locked/store-conditional
+ instructions, we cannot pack semaphores closer than a cache line
+ or risk threads deadlocking on unrelated semaphores. */
+
+typedef struct
+ {
+ int sem_status;
+ int sem_reserved[7];
+ } sem_t;
diff --git a/linuxthreads/sysdeps/powerpc/pt-machine.h b/linuxthreads/sysdeps/powerpc/pt-machine.h
new file mode 100644
index 0000000..a08828b
--- /dev/null
+++ b/linuxthreads/sysdeps/powerpc/pt-machine.h
@@ -0,0 +1,84 @@
+/* Machine-dependent pthreads configuration and inline functions.
+ powerpc version.
+ Copyright (C) 1996, 1997 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+ Contributed by Richard Henderson <rth@tamu.edu>.
+
+ 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, write to the Free Software Foundation, Inc.,
+ 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
+
+/* These routines are from Appendix G of the 'PowerPC 601 RISC Microprocessor
+ User's Manual', by IBM and Motorola. */
+
+/* For multiprocessor systems, we want to ensure all memory accesses
+ are completed before we reset a lock. */
+#if 0
+/* on non multiprocessor systems, you can just: */
+#define sync() /* nothing */
+#else
+#define sync() __asm__ __volatile__ ("sync")
+#endif
+
+/* Spinlock implementation; required. */
+extern inline int
+testandset (int *spinlock)
+{
+ int ret;
+
+ sync();
+ __asm__ __volatile__(
+ "0: lwarx %0,0,%1 ;"
+ " cmpwi %0,0;"
+ " bne 1f;"
+ " stwcx. %2,0,%1;"
+ " bne- 0b;"
+ "1: "
+ : "=&r"(ret)
+ : "r"(spinlock), "r"(1)
+ : "cr0", "memory");
+ sync();
+
+ return ret != 0;
+}
+
+
+/* Get some notion of the current stack. Need not be exactly the top
+ of the stack, just something somewhere in the current frame. */
+#define CURRENT_STACK_FRAME stack_pointer
+register char * stack_pointer __asm__ ("r1");
+
+/* Compare-and-swap for semaphores. */
+/* note that test-and-set(x) is the same as compare-and-swap(x, 0, 1) */
+
+#define HAS_COMPARE_AND_SWAP
+extern inline int
+__compare_and_swap (int *p, int oldval, int newval)
+{
+ int ret;
+
+ sync();
+ __asm__ __volatile__(
+ "0: lwarx %0,0,%1 ;"
+ " xor. %0,%3,%0;"
+ " bne 1f;"
+ " stwcx. %2,0,%1;"
+ " bne- 0b;"
+ "1: "
+ : "=&r"(ret)
+ : "r"(p), "r"(newval), "r"(oldval)
+ : "cr0", "memory");
+ sync();
+ return ret == 0;
+}
diff --git a/linuxthreads/sysdeps/pthread/Makefile b/linuxthreads/sysdeps/pthread/Makefile
new file mode 100644
index 0000000..419650c
--- /dev/null
+++ b/linuxthreads/sysdeps/pthread/Makefile
@@ -0,0 +1,3 @@
+ifeq ($(subdir),libio)
+sysdep_headers += bits/stdio-lock.h
+endif
diff --git a/linuxthreads/sysdeps/pthread/bits/libc-lock.h b/linuxthreads/sysdeps/pthread/bits/libc-lock.h
new file mode 100644
index 0000000..530d48c
--- /dev/null
+++ b/linuxthreads/sysdeps/pthread/bits/libc-lock.h
@@ -0,0 +1,208 @@
+/* libc-internal interface for mutex locks. LinuxThreads version.
+ Copyright (C) 1996, 1997 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,
+ write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ Boston, MA 02111-1307, USA. */
+
+#ifndef _BITS_LIBC_LOCK_H
+#define _BITS_LIBC_LOCK_H 1
+
+#include <pthread.h>
+
+/* Mutex type. */
+#ifdef _LIBC
+typedef pthread_mutex_t __libc_lock_t;
+#else
+typedef struct __libc_lock_opaque__ __libc_lock_t;
+#endif
+
+/* Type for key to thread-specific data. */
+typedef pthread_key_t __libc_key_t;
+
+/* Define a lock variable NAME with storage class CLASS. The lock must be
+ initialized with __libc_lock_init before it can be used (or define it
+ with __libc_lock_define_initialized, below). Use `extern' for CLASS to
+ declare a lock defined in another module. In public structure
+ definitions you must use a pointer to the lock structure (i.e., NAME
+ begins with a `*'), because its storage size will not be known outside
+ of libc. */
+#define __libc_lock_define(CLASS,NAME) \
+ CLASS __libc_lock_t NAME;
+
+/* Define an initialized lock variable NAME with storage class CLASS. */
+#define __libc_lock_define_initialized(CLASS,NAME) \
+ CLASS __libc_lock_t NAME = PTHREAD_MUTEX_INITIALIZER;
+
+/* Define an initialized recursive lock variable NAME with storage
+ class CLASS. */
+#define __libc_lock_define_initialized_recursive(CLASS,NAME) \
+ CLASS __libc_lock_t NAME = PTHREAD_RECURSIVE_MUTEX_INITIALIZER_NP;
+
+/* Initialize the named lock variable, leaving it in a consistent, unlocked
+ state. */
+#define __libc_lock_init(NAME) \
+ (__pthread_mutex_init != NULL ? __pthread_mutex_init (&(NAME), NULL) : 0);
+
+/* Same as last but this time we initialize a recursive mutex. */
+#define __libc_lock_init_recursive(NAME) \
+ do { \
+ if (__pthread_mutex_init != NULL) \
+ { \
+ pthread_mutexattr_t __attr; \
+ __pthread_mutexattr_init (&__attr); \
+ __pthread_mutexattr_setkind_np (&__attr, PTHREAD_MUTEX_RECURSIVE_NP); \
+ __pthread_mutex_init (&(NAME), &__attr); \
+ __pthread_mutexattr_destroy (&__attr); \
+ } \
+ } while (0);
+
+/* Finalize the named lock variable, which must be locked. It cannot be
+ used again until __libc_lock_init is called again on it. This must be
+ called on a lock variable before the containing storage is reused. */
+#define __libc_lock_fini(NAME) \
+ (__pthread_mutex_destroy != NULL ? __pthread_mutex_destroy (&(NAME)) : 0);
+
+/* Finalize recursive named lock. */
+#define __libc_lock_fini_recursive(NAME) __libc_lock_fini (NAME)
+
+/* Lock the named lock variable. */
+#define __libc_lock_lock(NAME) \
+ (__pthread_mutex_lock != NULL ? __pthread_mutex_lock (&(NAME)) : 0);
+
+/* Lock the recursive named lock variable. */
+#define __libc_lock_lock_recursive(NAME) __libc_lock_lock (NAME)
+
+/* Try to lock the named lock variable. */
+#define __libc_lock_trylock(NAME) \
+ (__pthread_mutex_trylock != NULL ? __pthread_mutex_trylock (&(NAME)) : 0)
+
+/* Try to lock the recursive named lock variable. */
+#define __libc_lock_trylock_recursive(NAME) __libc_lock_trylock (NAME)
+
+/* Unlock the named lock variable. */
+#define __libc_lock_unlock(NAME) \
+ (__pthread_mutex_unlock != NULL ? __pthread_mutex_unlock (&(NAME)) : 0);
+
+/* Unlock the recursive named lock variable. */
+#define __libc_lock_unlock_recursive(NAME) __libc_lock_unlock (NAME)
+
+
+/* Define once control variable. */
+#define __libc_once_define(CLASS, NAME) \
+ CLASS pthread_once_t NAME = PTHREAD_ONCE_INIT
+
+/* Call handler iff the first call. */
+#define __libc_once(ONCE_CONTROL, INIT_FUNCTION) \
+ do { \
+ if (__pthread_once != NULL) \
+ __pthread_once (&(ONCE_CONTROL), (INIT_FUNCTION)); \
+ else if ((ONCE_CONTROL) == 0) { \
+ INIT_FUNCTION (); \
+ (ONCE_CONTROL) = 1; \
+ } \
+ } while (0)
+
+
+/* Start critical region with cleanup. */
+#define __libc_cleanup_region_start(FCT, ARG) \
+ { struct _pthread_cleanup_buffer _buffer; \
+ if (_pthread_cleanup_push_defer != NULL) { \
+ _pthread_cleanup_push_defer (&_buffer, (FCT), (ARG)); \
+ }
+
+/* End critical region with cleanup. */
+#define __libc_cleanup_region_end(DOIT) \
+ if (_pthread_cleanup_push_defer != NULL) { \
+ _pthread_cleanup_pop_restore (&_buffer, (DOIT)); \
+ } \
+ }
+
+/* Create thread-specific key. */
+#define __libc_key_create(KEY, DESTRUCTOR) \
+ (__pthread_key_create != NULL ? __pthread_key_create (KEY, DESTRUCTOR) : 1)
+
+/* Get thread-specific data. */
+#define __libc_getspecific(KEY) \
+ (__pthread_getspecific != NULL ? __pthread_getspecific (KEY) : NULL)
+
+/* Set thread-specific data. */
+#define __libc_setspecific(KEY, VALUE) \
+ (__pthread_setspecific != NULL ? __pthread_setspecific (KEY, VALUE) : 0)
+
+#ifdef _LIBC
+
+/* Fast thread-specific data internal to libc. */
+enum __libc_tsd_key_t { _LIBC_TSD_KEY_MALLOC = 0, _LIBC_TSD_KEY_N };
+
+extern void *__libc_internal_tsd_get __P ((enum __libc_tsd_key_t));
+extern int __libc_internal_tsd_set __P ((enum __libc_tsd_key_t,
+ __const void *));
+
+#endif
+
+
+/* Register handlers to execute before and after `fork'. */
+#define __libc_atfork(PREPARE, PARENT, CHILD) \
+ (__pthread_atfork != NULL ? __pthread_atfork (PREPARE, PARENT, CHILD) : 0)
+
+
+/* Make the pthread functions weak so that we can elide them from
+ single-threaded processes. */
+#ifdef weak_extern
+weak_extern (__pthread_mutex_init)
+weak_extern (__pthread_mutex_destroy)
+weak_extern (__pthread_mutex_lock)
+weak_extern (__pthread_mutex_trylock)
+weak_extern (__pthread_mutex_unlock)
+weak_extern (__pthread_mutexattr_init)
+weak_extern (__pthread_mutexattr_destroy)
+weak_extern (__pthread_mutexattr_setkind_np)
+weak_extern (__pthread_key_create)
+weak_extern (__pthread_setspecific)
+weak_extern (__pthread_getspecific)
+weak_extern (__libc_internal_tsd_get)
+weak_extern (__libc_internal_tsd_set)
+weak_extern (__pthread_once)
+weak_extern (__pthread_initialize)
+weak_extern (__pthread_atfork)
+weak_extern (_pthread_cleanup_push_defer)
+weak_extern (_pthread_cleanup_pop_restore)
+#else
+# pragma weak __pthread_mutex_init
+# pragma weak __pthread_mutex_destroy
+# pragma weak __pthread_mutex_lock
+# pragma weak __pthread_mutex_trylock
+# pragma weak __pthread_mutex_unlock
+# pragma weak __pthread_mutexattr_init
+# pragma weak __pthread_mutexattr_destroy
+# pragma weak __pthread_mutexattr_setkind_np
+# pragma weak __pthread_key_create
+# pragma weak __pthread_setspecific
+# pragma weak __pthread_getspecific
+# pragma weak __libc_internal_tsd_get
+# pragma weak __libc_internal_tsd_set
+# pragma weak __pthread_once
+# pragma weak __pthread_initialize
+# pragma weak __pthread_atfork
+# pragma weak _pthread_cleanup_push_defer
+# pragma weak _pthread_cleanup_pop_restore
+#endif
+
+/* We need portable names for some functions. E.g., when they are
+ used as argument to __libc_cleanup_region_start. */
+#define __libc_mutex_unlock __pthread_mutex_unlock
+
+#endif /* bits/libc-lock.h */
diff --git a/linuxthreads/sysdeps/pthread/bits/stdio-lock.h b/linuxthreads/sysdeps/pthread/bits/stdio-lock.h
new file mode 100644
index 0000000..23ebf40
--- /dev/null
+++ b/linuxthreads/sysdeps/pthread/bits/stdio-lock.h
@@ -0,0 +1,35 @@
+/* Thread package specific definitions of stream lock type.
+ Copyright (C) 1996, 1997 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,
+ write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ Boston, MA 02111-1307, USA. */
+
+#include <pthread.h>
+
+typedef pthread_mutex_t _IO_lock_t;
+
+/* We need recursive (counting) mutexes. */
+#define _IO_lock_initializer PTHREAD_RECURSIVE_MUTEX_INITIALIZER_NP
+
+
+#define _IO_cleanup_region_start(_fct, _fp) \
+ __libc_cleanup_region_start (_fct, _fp)
+#define _IO_cleanup_region_end(_doit) \
+ __libc_cleanup_region_end (_doit)
+#define _IO_lock_init(_name) \
+ __libc_lock_init_recursive (_name)
+#define _IO_lock_fini(_name) \
+ __libc_lock_fini_recursive (_name)
diff --git a/linuxthreads/sysdeps/pthread/cmpxchg/bits/semaphore.h b/linuxthreads/sysdeps/pthread/cmpxchg/bits/semaphore.h
new file mode 100644
index 0000000..0cdbc05
--- /dev/null
+++ b/linuxthreads/sysdeps/pthread/cmpxchg/bits/semaphore.h
@@ -0,0 +1,26 @@
+/* Copyright (C) 1996, 1997 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,
+ write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ Boston, MA 02111-1307, USA. */
+
+#ifndef _SEMAPHORE_H
+# error "Never include <bits/semaphore.h> directly; use <semaphore.h> instead."
+#endif
+
+
+typedef struct {
+ long int sem_status;
+} sem_t;
diff --git a/linuxthreads/sysdeps/pthread/no-cmpxchg/bits/semaphore.h b/linuxthreads/sysdeps/pthread/no-cmpxchg/bits/semaphore.h
new file mode 100644
index 0000000..4d801a2
--- /dev/null
+++ b/linuxthreads/sysdeps/pthread/no-cmpxchg/bits/semaphore.h
@@ -0,0 +1,27 @@
+/* Copyright (C) 1996, 1997 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,
+ write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ Boston, MA 02111-1307, USA. */
+
+#ifndef _SEMAPHORE_H
+# error "Never include <bits/semaphore.h> directly; use <semaphore.h> instead."
+#endif
+
+
+typedef struct {
+ long int sem_status;
+ int sem_spinlock;
+} sem_t;
diff --git a/linuxthreads/sysdeps/pthread/pthread.h b/linuxthreads/sysdeps/pthread/pthread.h
new file mode 100644
index 0000000..b62706a
--- /dev/null
+++ b/linuxthreads/sysdeps/pthread/pthread.h
@@ -0,0 +1,578 @@
+/* Linuxthreads - a simple clone()-based implementation of Posix */
+/* threads for Linux. */
+/* Copyright (C) 1996 Xavier Leroy (Xavier.Leroy@inria.fr) */
+/* */
+/* This program 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. */
+/* */
+/* This program 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. */
+
+#ifndef _PTHREAD_H
+#define _PTHREAD_H 1
+
+#include <features.h>
+
+#include <errno.h>
+#include <limits.h>
+#include <sched.h>
+#include <unistd.h>
+
+#define __need_sigset_t
+#include <signal.h>
+#define __need_timespec
+#include <time.h>
+
+/* Linux has no ENOTSUP error code. */
+#ifndef ENOTSUP
+#define ENOTSUP EOPNOTSUPP
+#endif
+
+
+__BEGIN_DECLS
+
+/*** Types ***/
+
+/* Thread identifiers */
+typedef unsigned long int pthread_t;
+
+/* Thread descriptors */
+typedef struct _pthread_descr_struct *_pthread_descr;
+
+/* Waiting queues (not abstract because mutexes and conditions aren't). */
+struct _pthread_queue
+{
+ _pthread_descr head; /* First element, or NULL if queue empty. */
+ _pthread_descr tail; /* Last element, or NULL if queue empty. */
+};
+
+/* Mutexes (not abstract because of PTHREAD_MUTEX_INITIALIZER). */
+typedef struct
+{
+ int m_spinlock; /* Spin lock to guarantee mutual exclusion. */
+ int m_count; /* 0 if free, > 0 if taken. */
+ _pthread_descr m_owner; /* Owner of mutex (for recursive mutexes) */
+ int m_kind; /* Kind of mutex */
+ struct _pthread_queue m_waiting; /* Threads waiting on this mutex. */
+} pthread_mutex_t;
+
+#define PTHREAD_MUTEX_INITIALIZER \
+ {0, 0, 0, PTHREAD_MUTEX_FAST_NP, {0, 0}}
+#define PTHREAD_RECURSIVE_MUTEX_INITIALIZER_NP \
+ {0, 0, 0, PTHREAD_MUTEX_RECURSIVE_NP, {0, 0}}
+
+/* Conditions (not abstract because of PTHREAD_COND_INITIALIZER */
+typedef struct
+{
+ int c_spinlock; /* Spin lock to protect the queue. */
+ struct _pthread_queue c_waiting; /* Threads waiting on this condition. */
+} pthread_cond_t;
+
+#define PTHREAD_COND_INITIALIZER {0, {0, 0}}
+
+#ifdef __USE_UNIX98
+/* Read-write locks. */
+typedef struct
+{
+ int rw_spinlock; /* Spin lock to guarantee mutual exclusion */
+ int rw_readers; /* Number of readers */
+ _pthread_descr rw_writer; /* Identity of writer, or NULL if none */
+ struct _pthread_queue rw_read_waiting; /* Threads waiting for reading */
+ struct _pthread_queue rw_write_waiting; /* Threads waiting for writing */
+ int rw_kind; /* Reader/Writer preference selection */
+ int rw_pshared; /* Shared between processes or not */
+} pthread_rwlock_t;
+
+# define PTHREAD_RWLOCK_INITIALIZER \
+ { 0, 0, 0, {0, 0}, {0, 0}, \
+ PTHREAD_RWLOCK_DEFAULT_NP, PTHREAD_PROCESS_PRIVATE }
+#endif
+
+/* Attributes */
+
+enum
+{
+ PTHREAD_CREATE_JOINABLE,
+ PTHREAD_CREATE_DETACHED
+};
+
+enum
+{
+ PTHREAD_INHERIT_SCHED,
+ PTHREAD_EXPLICIT_SCHED
+};
+
+enum
+{
+ PTHREAD_SCOPE_SYSTEM,
+ PTHREAD_SCOPE_PROCESS
+};
+
+typedef struct
+{
+ int detachstate;
+ int schedpolicy;
+ struct sched_param schedparam;
+ int inheritsched;
+ int scope;
+} pthread_attr_t;
+
+enum
+{
+ PTHREAD_MUTEX_FAST_NP,
+ PTHREAD_MUTEX_RECURSIVE_NP,
+ PTHREAD_MUTEX_ERRORCHECK_NP
+#ifdef __USE_UNIX98
+ ,
+ PTHREAD_MUTEX_NORMAL = PTHREAD_MUTEX_FAST_NP,
+ PTHREAD_MUTEX_RECURSIVE = PTHREAD_MUTEX_RECURSIVE_NP,
+ PTHREAD_MUTEX_ERRORCHECK = PTHREAD_MUTEX_ERRORCHECK_NP,
+ PTHREAD_MUTEX_DEFAULT = PTHREAD_MUTEX_NORMAL
+#endif
+};
+
+typedef struct
+{
+ int mutexkind;
+} pthread_mutexattr_t;
+
+typedef struct
+{
+ int dummy;
+} pthread_condattr_t;
+
+#ifdef __USE_UNIX98
+enum
+{
+ PTHREAD_PROCESS_PRIVATE,
+ PTHREAD_PROCESS_SHARED
+};
+
+enum
+{
+ PTHREAD_RWLOCK_PREFER_READER_NP,
+ PTHREAD_RWLOCK_PREFER_WRITER_NP,
+ PTHREAD_RWLOCK_DEFAULT_NP = PTHREAD_RWLOCK_PREFER_WRITER_NP
+};
+
+typedef struct
+{
+ int lockkind;
+ int pshared;
+} pthread_rwlockattr_t;
+#endif
+
+/* Keys for thread-specific data */
+
+typedef unsigned int pthread_key_t;
+
+/* Once-only execution */
+
+typedef int pthread_once_t;
+
+#define PTHREAD_ONCE_INIT 0
+
+/* Cleanup buffers */
+
+struct _pthread_cleanup_buffer
+{
+ void (*routine) __P ((void *)); /* Function to call. */
+ void *arg; /* Its argument. */
+ int canceltype; /* Saved cancellation type. */
+ struct _pthread_cleanup_buffer *prev; /* Chaining of cleanup functions. */
+};
+
+/* Cancellation */
+
+enum { PTHREAD_CANCEL_ENABLE, PTHREAD_CANCEL_DISABLE };
+enum { PTHREAD_CANCEL_DEFERRED, PTHREAD_CANCEL_ASYNCHRONOUS };
+#define PTHREAD_CANCELED ((void *) -1)
+
+
+/* Function for handling threads. */
+
+/* Create a thread with given attributes ATTR (or default attributes
+ if ATTR is NULL), and call function START_ROUTINE with given
+ arguments ARG. */
+extern int pthread_create __P ((pthread_t *__thread,
+ __const pthread_attr_t *__attr,
+ void *(*__start_routine) (void *),
+ void *__arg));
+
+/* Obtain the identifier of the current thread. */
+extern pthread_t pthread_self __P ((void));
+
+/* Compare two thread identifiers. */
+extern int pthread_equal __P ((pthread_t __thread1, pthread_t __thread2));
+
+/* Terminate calling thread. */
+extern void pthread_exit __P ((void *__retval)) __attribute__ ((__noreturn__));
+
+/* Make calling thread wait for termination of the thread TH. The
+ exit status of the thread is stored in *THREAD_RETURN, if THREAD_RETURN
+ is not NULL. */
+extern int pthread_join __P ((pthread_t __th, void **__thread_return));
+
+/* Indicate that the thread TH is never to be joined with PTHREAD_JOIN.
+ The resources of TH will therefore be freed immediately when it
+ terminates, instead of waiting for another thread to perform PTHREAD_JOIN
+ on it. */
+extern int pthread_detach __P ((pthread_t __th));
+
+
+/* Functions for handling attributes. */
+
+/* Initialize thread attribute *ATTR with default attributes
+ (detachstate is PTHREAD_JOINABLE, scheduling policy is SCHED_OTHER). */
+extern int pthread_attr_init __P ((pthread_attr_t *__attr));
+
+/* Destroy thread attribute *ATTR. */
+extern int pthread_attr_destroy __P ((pthread_attr_t *__attr));
+
+/* Set the `detachstate' attribute in *ATTR according to DETACHSTATE. */
+extern int pthread_attr_setdetachstate __P ((pthread_attr_t *__attr,
+ int __detachstate));
+
+/* Return in *DETACHSTATE the `detachstate' attribute in *ATTR. */
+extern int pthread_attr_getdetachstate __P ((__const pthread_attr_t *__attr,
+ int *__detachstate));
+
+/* Set scheduling parameters (priority, etc) in *ATTR according to PARAM. */
+extern int pthread_attr_setschedparam __P ((pthread_attr_t *__attr,
+ __const struct sched_param *__param));
+
+/* Return in *PARAM the scheduling parameters of *ATTR. */
+extern int pthread_attr_getschedparam __P ((__const pthread_attr_t *__attr,
+ struct sched_param *__param));
+
+/* Set scheduling policy in *ATTR according to POLICY. */
+extern int pthread_attr_setschedpolicy __P ((pthread_attr_t *__attr,
+ int __policy));
+
+/* Return in *POLICY the scheduling policy of *ATTR. */
+extern int pthread_attr_getschedpolicy __P ((__const pthread_attr_t *__attr,
+ int *__policy));
+
+/* Set scheduling inheritance mode in *ATTR according to INHERIT. */
+extern int pthread_attr_setinheritsched __P ((pthread_attr_t *__attr,
+ int __inherit));
+
+/* Return in *INHERIT the scheduling inheritance mode of *ATTR. */
+extern int pthread_attr_getinheritsched __P ((__const pthread_attr_t *__attr,
+ int *__inherit));
+
+/* Set scheduling contention scope in *ATTR according to SCOPE. */
+extern int pthread_attr_setscope __P ((pthread_attr_t *__attr, int __scope));
+
+/* Return in *SCOPE the scheduling contention scope of *ATTR. */
+extern int pthread_attr_getscope __P ((__const pthread_attr_t *__attr,
+ int *__scope));
+
+/* Functions for scheduling control. */
+
+/* Set the scheduling parameters for TARGET_THREAD according to POLICY
+ and *PARAM. */
+extern int pthread_setschedparam __P ((pthread_t __target_thread, int __policy,
+ __const struct sched_param *__param));
+
+/* Return in *POLICY and *PARAM the scheduling parameters for TARGET_THREAD. */
+extern int pthread_getschedparam __P ((pthread_t __target_thread,
+ int *__policy,
+ struct sched_param *__param));
+
+
+/* Functions for mutex handling. */
+
+/* Initialize MUTEX using attributes in *MUTEX_ATTR, or use the
+ default values if later is NULL. */
+extern int __pthread_mutex_init __P ((pthread_mutex_t *__mutex,
+ __const pthread_mutexattr_t *__mutex_attr));
+extern int pthread_mutex_init __P ((pthread_mutex_t *__mutex,
+ __const pthread_mutexattr_t *__mutex_attr));
+
+/* Destroy MUTEX. */
+extern int __pthread_mutex_destroy __P ((pthread_mutex_t *__mutex));
+extern int pthread_mutex_destroy __P ((pthread_mutex_t *__mutex));
+
+/* Try to lock MUTEX. */
+extern int __pthread_mutex_trylock __P ((pthread_mutex_t *__mutex));
+extern int pthread_mutex_trylock __P ((pthread_mutex_t *__mutex));
+
+/* Wait until lock for MUTEX becomes available and lock it. */
+extern int __pthread_mutex_lock __P ((pthread_mutex_t *__mutex));
+extern int pthread_mutex_lock __P ((pthread_mutex_t *__mutex));
+
+/* Unlock MUTEX. */
+extern int __pthread_mutex_unlock __P ((pthread_mutex_t *__mutex));
+extern int pthread_mutex_unlock __P ((pthread_mutex_t *__mutex));
+
+
+/* Functions for handling mutex attributes. */
+
+/* Initialize mutex attribute object ATTR with default attributes
+ (kind is PTHREAD_MUTEX_FAST_NP). */
+extern int __pthread_mutexattr_init __P ((pthread_mutexattr_t *__attr));
+extern int pthread_mutexattr_init __P ((pthread_mutexattr_t *__attr));
+
+/* Destroy mutex attribute object ATTR. */
+extern int __pthread_mutexattr_destroy __P ((pthread_mutexattr_t *__attr));
+extern int pthread_mutexattr_destroy __P ((pthread_mutexattr_t *__attr));
+
+/* Set the mutex kind attribute in *ATTR to KIND (either PTHREAD_MUTEX_FAST_NP
+ or PTHREAD_MUTEX_RECURSIVE_NP). */
+extern int __pthread_mutexattr_setkind_np __P ((pthread_mutexattr_t *__attr,
+ int __kind));
+extern int pthread_mutexattr_setkind_np __P ((pthread_mutexattr_t *__attr,
+ int __kind));
+/* Return in *KIND the mutex kind attribute in *ATTR. */
+extern int pthread_mutexattr_getkind_np __P ((__const pthread_mutexattr_t *__attr,
+ int *__kind));
+
+
+/* Functions for handling conditional variables. */
+
+/* Initialize condition variable COND using attributes ATTR, or use
+ the default values if later is NULL. */
+extern int pthread_cond_init __P ((pthread_cond_t *__cond,
+ __const pthread_condattr_t *__cond_attr));
+
+/* Destroy condition variable COND. */
+extern int pthread_cond_destroy __P ((pthread_cond_t *__cond));
+
+/* Wake up one thread waiting for condition variable COND. */
+extern int pthread_cond_signal __P ((pthread_cond_t *__cond));
+
+/* Wake up all threads waiting for condition variables COND. */
+extern int pthread_cond_broadcast __P ((pthread_cond_t *__cond));
+
+/* Wait for condition variable COND to be signaled or broadcast.
+ MUTEX is assumed to be locked before. */
+extern int pthread_cond_wait __P ((pthread_cond_t *__cond,
+ pthread_mutex_t *__mutex));
+
+/* Wait for condition variable COND to be signaled or broadcast until
+ ABSTIME. MUTEX is assumed to be locked before. ABSTIME is an
+ absolute time specification; zero is the beginning of the epoch
+ (00:00:00 GMT, January 1, 1970). */
+extern int pthread_cond_timedwait __P ((pthread_cond_t *__cond,
+ pthread_mutex_t *__mutex,
+ __const struct timespec *__abstime));
+
+/* Functions for handling condition variable attributes. */
+
+/* Initialize condition variable attribute ATTR. */
+extern int pthread_condattr_init __P ((pthread_condattr_t *__attr));
+
+/* Destroy condition variable attribute ATTR. */
+extern int pthread_condattr_destroy __P ((pthread_condattr_t *__attr));
+
+
+#ifdef __USE_UNIX98
+/* Functions for handling read-write locks. */
+
+/* Initialize read-write lock RWLOCK using attributes ATTR, or use
+ the default values if later is NULL. */
+extern int pthread_rwlock_init __P ((pthread_rwlock_t *__rwlock,
+ __const pthread_rwlockattr_t *__attr));
+
+/* Destroy read-write lock RWLOCK. */
+extern int pthread_rwlock_destroy __P ((pthread_rwlock_t *__rwlock));
+
+/* Acquire read lock for RWLOCK. */
+extern int pthread_rwlock_rdlock __P ((pthread_rwlock_t *__rwlock));
+
+/* Try to acquire read lock for RWLOCK. */
+extern int pthread_rwlock_tryrdlock __P ((pthread_rwlock_t *__rwlock));
+
+/* Acquire write lock for RWLOCK. */
+extern int pthread_rwlock_wrlock __P ((pthread_rwlock_t *__rwlock));
+
+/* Try to acquire writelock for RWLOCK. */
+extern int pthread_rwlock_trywrlock __P ((pthread_rwlock_t *__rwlock));
+
+/* Unlock RWLOCK. */
+extern int pthread_rwlock_unlock __P ((pthread_rwlock_t *__rwlock));
+
+
+/* Functions for handling read-write lock attributes. */
+
+/* Initialize attribute object ATTR with default values. */
+extern int pthread_rwlockattr_init __P ((pthread_rwlockattr_t *__attr));
+
+/* Destroy attribute object ATTR. */
+extern int pthread_rwlockattr_destroy __P ((pthread_rwlockattr_t *__attr));
+
+/* Return current setting of process-shared attribute of ATTR in PSHARED. */
+extern int pthread_rwlockattr_getpshared __P ((__const
+ pthread_rwlockattr_t *__attr,
+ int *__pshared));
+
+/* Set process-shared attribute of ATTR to PSHARED. */
+extern int pthread_rwlockattr_setpshared __P ((pthread_rwlockattr_t *__attr,
+ int __pshared));
+
+/* Return current setting of reader/writer preference. */
+extern int pthread_rwlockattr_getkind_np __P ((__const
+ pthread_rwlockattr_t *__attr,
+ int *__pref));
+
+/* Set reader/write preference. */
+extern int pthread_rwlockattr_setkind_np __P ((pthread_rwlockattr_t *__attr,
+ int __pref));
+#endif
+
+
+/* Functions for handling thread-specific data */
+
+/* Create a key value identifying a location in the thread-specific data
+ area. Each thread maintains a distinct thread-specific data area.
+ DESTR_FUNCTION, if non-NULL, is called with
+ the value associated to that key when the key is destroyed.
+ DESTR_FUNCTION is not called if the value associated is NULL
+ when the key is destroyed. */
+extern int __pthread_key_create __P ((pthread_key_t *__key,
+ void (*__destr_function) (void *)));
+extern int pthread_key_create __P ((pthread_key_t *__key,
+ void (*__destr_function) (void *)));
+
+/* Destroy KEY. */
+extern int pthread_key_delete __P ((pthread_key_t __key));
+
+/* Store POINTER in the thread-specific data slot identified by KEY. */
+extern int __pthread_setspecific __P ((pthread_key_t __key,
+ __const void *__pointer));
+extern int pthread_setspecific __P ((pthread_key_t __key,
+ __const void *__pointer));
+
+/* Return current value of the thread-specific data slot identified by KEY. */
+extern void *__pthread_getspecific __P ((pthread_key_t __key));
+extern void *pthread_getspecific __P ((pthread_key_t __key));
+
+
+/* Functions for handling initialization */
+
+/* Guarantee that the initialization function INIT_ROUTINE will be called
+ only once, even if pthread_once is executed several times with the
+ same ONCE_CONTROL argument. ONCE_CONTROL must point to a static or
+ extern variable initialized to PTHREAD_ONCE_INIT. */
+extern int __pthread_once __P ((pthread_once_t *__once_control,
+ void (*__init_routine) (void)));
+extern int pthread_once __P ((pthread_once_t *__once_control,
+ void (*__init_routine) (void)));
+
+
+/* Functions for handling cancellation. */
+
+/* Set cancelability state of current thread to STATE, returning old
+ state in *OLDSTATE if OLDSTATE is not NULL. */
+extern int pthread_setcancelstate __P ((int __state, int *__oldstate));
+
+/* Set cancellation state of current thread to TYPE, returning the old
+ type in *OLDTYPE if OLDTYPE is not NULL. */
+extern int __pthread_setcanceltype __P ((int __type, int *__oldtype));
+extern int pthread_setcanceltype __P ((int __type, int *__oldtype));
+
+/* Cancel THREAD immediately or at the next possibility. */
+extern int pthread_cancel __P ((pthread_t __thread));
+
+/* Test for pending cancellation for the current thread and terminate
+ the thread as per pthread_exit(PTHREAD_CANCELED) if it has been
+ cancelled. */
+extern void pthread_testcancel __P ((void));
+
+
+/* Install a cleanup handler: ROUTINE will be called with arguments ARG
+ when the thread is cancelled or calls pthread_exit. ROUTINE will also
+ be called with arguments ARG when the matching pthread_cleanup_pop
+ is executed with non-zero EXECUTE argument.
+ pthread_cleanup_push and pthread_cleanup_pop are macros and must always
+ be used in matching pairs at the same nesting level of braces. */
+
+#define pthread_cleanup_push(routine,arg) \
+ { struct _pthread_cleanup_buffer _buffer; \
+ _pthread_cleanup_push (&_buffer, (routine), (arg));
+
+extern void _pthread_cleanup_push __P ((struct _pthread_cleanup_buffer *__buffer,
+ void (*__routine) (void *),
+ void *__arg));
+
+/* Remove a cleanup handler installed by the matching pthread_cleanup_push.
+ If EXECUTE is non-zero, the handler function is called. */
+
+#define pthread_cleanup_pop(execute) \
+ _pthread_cleanup_pop (&_buffer, (execute)); }
+
+extern void _pthread_cleanup_pop __P ((struct _pthread_cleanup_buffer *__buffer,
+ int __execute));
+
+/* Install a cleanup handler as pthread_cleanup_push does, but also
+ saves the current cancellation type and set it to deferred cancellation. */
+
+#define pthread_cleanup_push_defer_np(routine,arg) \
+ { struct _pthread_cleanup_buffer _buffer; \
+ _pthread_cleanup_push_defer (&_buffer, (routine), (arg));
+
+extern void _pthread_cleanup_push_defer __P ((struct _pthread_cleanup_buffer *__buffer,
+ void (*__routine) (void *),
+ void *__arg));
+
+/* Remove a cleanup handler as pthread_cleanup_pop does, but also
+ restores the cancellation type that was in effect when the matching
+ pthread_cleanup_push_defer was called. */
+
+#define pthread_cleanup_pop_restore_np(execute) \
+ _pthread_cleanup_pop_restore (&_buffer, (execute)); }
+
+extern void _pthread_cleanup_pop_restore __P ((struct _pthread_cleanup_buffer *__buffer,
+ int __execute));
+
+/* Functions for handling signals. */
+
+/* Modify the signal mask for the calling thread. The arguments have
+ the same meaning as for sigprocmask(2). */
+
+extern int pthread_sigmask __P ((int __how, __const sigset_t *__newmask,
+ sigset_t *__oldmask));
+
+/* Send signal SIGNO to the given thread. */
+
+extern int pthread_kill __P ((pthread_t __thread, int __signo));
+
+
+/* Functions for handling process creation and process execution. */
+
+/* Install handlers to be called when a new process is created with FORK.
+ The PREPARE handler is called in the parent process just before performing
+ FORK. The PARENT handler is called in the parent process just after FORK.
+ The CHILD handler is called in the child process. Each of the three
+ handlers can be NULL, meaning that no handler needs to be called at that
+ point.
+ PTHREAD_ATFORK can be called several times, in which case the PREPARE
+ handlers are called in LIFO order (last added with PTHREAD_ATFORK,
+ first called before FORK), and the PARENT and CHILD handlers are called
+ in FIFO (first added, first called). */
+
+extern int __pthread_atfork __P ((void (*__prepare) (void),
+ void (*__parent) (void),
+ void (*__child) (void)));
+extern int pthread_atfork __P ((void (*__prepare) (void),
+ void (*__parent) (void),
+ void (*__child) (void)));
+
+/* Terminate all threads in the program except the calling process.
+ Should be called just before invoking one of the exec*() functions. */
+
+extern void __pthread_kill_other_threads_np __P ((void));
+extern void pthread_kill_other_threads_np __P ((void));
+
+
+/* This function is called to initialize the pthread library. */
+extern void __pthread_initialize __P ((void));
+
+__END_DECLS
+
+#endif /* pthread.h */
diff --git a/linuxthreads/sysdeps/sparc/sparc32/Implies b/linuxthreads/sysdeps/sparc/sparc32/Implies
new file mode 100644
index 0000000..7edcd7e
--- /dev/null
+++ b/linuxthreads/sysdeps/sparc/sparc32/Implies
@@ -0,0 +1 @@
+pthread/no-cmpxchg
diff --git a/linuxthreads/sysdeps/sparc/sparc32/pt-machine.h b/linuxthreads/sysdeps/sparc/sparc32/pt-machine.h
new file mode 100644
index 0000000..13f78e3
--- /dev/null
+++ b/linuxthreads/sysdeps/sparc/sparc32/pt-machine.h
@@ -0,0 +1,55 @@
+/* Machine-dependent pthreads configuration and inline functions.
+ sparc version.
+ Copyright (C) 1996, 1997 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+ Contributed by Richard Henderson <rth@tamu.edu>.
+
+ 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,
+ write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ Boston, MA 02111-1307, USA. */
+
+/* Spinlock implementation; required. */
+static inline int testandset(int *spinlock)
+{
+ int ret;
+
+ __asm__ __volatile__("ldstub %1,%0"
+ : "=r"(ret), "=m"(*spinlock)
+ : "m"(*spinlock));
+
+ return ret;
+}
+
+
+/* Spinlock release; default is just set to zero. */
+#define RELEASE(spinlock) \
+ __asm__ __volatile__("stbar; stb %1,%0" : "=m"(*(spinlock)) : "r"(0));
+
+
+/* Get some notion of the current stack. Need not be exactly the top
+ of the stack, just something somewhere in the current frame. */
+#define CURRENT_STACK_FRAME stack_pointer
+register char * stack_pointer __asm__("%sp");
+
+
+/* Registers %g6 and %g7 are reserved by the ABI for "system use". It
+ happens that Solaris uses %g6 for the thread pointer -- we do the same. */
+struct _pthread_descr_struct;
+register struct _pthread_descr_struct *__thread_self __asm__("%g6");
+
+/* Return the thread descriptor for the current thread. */
+#define THREAD_SELF __thread_self
+
+/* Initialize the thread-unique value. */
+#define INIT_THREAD_SELF(descr) (__thread_self = (descr))
diff --git a/linuxthreads/sysdeps/sparc/sparc64/Implies b/linuxthreads/sysdeps/sparc/sparc64/Implies
new file mode 100644
index 0000000..81e9366
--- /dev/null
+++ b/linuxthreads/sysdeps/sparc/sparc64/Implies
@@ -0,0 +1 @@
+pthread/cmpxchg
diff --git a/linuxthreads/sysdeps/sparc/sparc64/pt-machine.h b/linuxthreads/sysdeps/sparc/sparc64/pt-machine.h
new file mode 100644
index 0000000..5424860
--- /dev/null
+++ b/linuxthreads/sysdeps/sparc/sparc64/pt-machine.h
@@ -0,0 +1,67 @@
+/* Machine-dependent pthreads configuration and inline functions.
+ Sparc v9 version.
+ Copyright (C) 1997 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+ Contributed by Richard Henderson <rth@tamu.edu>.
+
+ 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, write to the Free Software Foundation, Inc.,
+ 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
+
+
+/* Spinlock implementation; required. */
+extern inline int
+testandset (int *spinlock)
+{
+ int ret;
+
+ __asm__ __volatile__("ldstub %1,%0"
+ : "=r"(ret), "=m"(*spinlock) : "m"(*spinlock));
+
+ return ret;
+}
+
+
+/* Get some notion of the current stack. Need not be exactly the top
+ of the stack, just something somewhere in the current frame. */
+#define CURRENT_STACK_FRAME stack_pointer
+register char * stack_pointer __asm__ ("%sp");
+
+
+/* Registers %g6 and %g7 are reserved by the ABI for "system use". It
+ happens that Solaris uses %g6 for the thread pointer -- we do the same. */
+struct _pthread_descr_struct;
+register struct _pthread_descr_struct *__thread_self __asm__("%g6");
+
+/* Return the thread descriptor for the current thread. */
+#define THREAD_SELF __thread_self
+
+/* Initialize the thread-unique value. */
+#define INIT_THREAD_SELF(descr) (__thread_self = (descr))
+
+
+/* Compare-and-swap for semaphores. */
+
+#define HAS_COMPARE_AND_SWAP
+extern inline int
+__compare_and_swap (long int *p, long int oldval, long int newval)
+{
+ long int readval;
+
+ __asm__ __volatile__ ("cas %1, %2, %0"
+ : "=r"(readval), "=m"(*p)
+ : "r"(oldval), "m"(*p), "0"(newval));
+
+ return readval == newval;
+}
diff --git a/linuxthreads/sysdeps/unix/sysv/linux/Implies b/linuxthreads/sysdeps/unix/sysv/linux/Implies
new file mode 100644
index 0000000..f1b3e89
--- /dev/null
+++ b/linuxthreads/sysdeps/unix/sysv/linux/Implies
@@ -0,0 +1 @@
+pthread
diff --git a/linuxthreads/sysdeps/unix/sysv/linux/bits/local_lim.h b/linuxthreads/sysdeps/unix/sysv/linux/bits/local_lim.h
new file mode 100644
index 0000000..68635ba
--- /dev/null
+++ b/linuxthreads/sysdeps/unix/sysv/linux/bits/local_lim.h
@@ -0,0 +1,40 @@
+/* Minimum guaranteed maximum values for system limits. Linux version.
+ Copyright (C) 1993, 1994, 1995, 1996, 1997 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,
+ write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ Boston, MA 02111-1307, USA. */
+
+/* The kernel sources contain a file with all the needed information. */
+#include <linux/limits.h>
+
+/* 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
+/* This is the value this implementation supports. */
+#define PTHREAD_THREADS_MAX 1024
+
+/* Maximum amount by which a process can descrease its asynchronous I/O
+ priority level. */
+#define AIO_PRIO_DELTA_MAX 20
diff --git a/linuxthreads/sysdeps/unix/sysv/linux/bits/posix_opt.h b/linuxthreads/sysdeps/unix/sysv/linux/bits/posix_opt.h
new file mode 100644
index 0000000..feb4e10
--- /dev/null
+++ b/linuxthreads/sysdeps/unix/sysv/linux/bits/posix_opt.h
@@ -0,0 +1,94 @@
+/* Define POSIX options for Linux.
+ Copyright (C) 1996, 1997 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,
+ write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ Boston, MA 02111-1307, USA. */
+
+#ifndef _POSIX_OPT_H
+#define _POSIX_OPT_H 1
+
+/* Job control is supported. */
+#define _POSIX_JOB_CONTROL 1
+
+/* Processes have a saved set-user-ID and a saved set-group-ID. */
+#define _POSIX_SAVED_IDS 1
+
+/* Priority scheduling is supported. */
+#define _POSIX_PRIORITY_SCHEDULING 1
+
+/* Synchronizing file data is supported. */
+#define _POSIX_SYNCHRONIZED_IO 1
+
+/* The fsync function is present. */
+#define _POSIX_FSYNC 1
+
+/* Mapping of files to memory is supported. */
+#define _POSIX_MAPPED_FILES 1
+
+/* Locking of all memory is supported. */
+#define _POSIX_MEMLOCK 1
+
+/* Locking of ranges of memory is supported. */
+#define _POSIX_MEMLOCK_RANGE 1
+
+/* Setting of memory protections is supported. */
+#define _POSIX_MEMORY_PROTECTION 1
+
+/* Implementation supports `poll' function. */
+#define _POSIX_POLL 1
+
+/* Implementation supports `select' and `pselect' functions. */
+#define _POSIX_SELECT 1
+
+/* Only root can change owner of file. */
+#define _POSIX_CHOWN_RESTRICTED 1
+
+/* `c_cc' member of 'struct termios' structure can be disabled by
+ using the value _POSIX_VDISABLE. */
+#define _POSIX_VDISABLE '\0'
+
+/* Filenames are not silently truncated. */
+#define _POSIX_NO_TRUNC 1
+
+/* X/Open realtime support is available. */
+#define _XOPEN_REALTIME 1
+
+/* X/Open realtime thread support is available. */
+#define _XOPEN_REALTIME_THREADS 1
+
+/* XPG4.2 shared memory is supported. */
+#define _XOPEN_SHM 1
+
+/* Tell we have POSIX threads. */
+#define _POSIX_THREADS 1
+
+/* We have the reentrant functions described in POSIX. */
+#define _POSIX_REENTRANT_FUNCTIONS 1
+#define _POSIX_THREAD_SAFE_FUNCTIONS 1
+
+/* We provide priority scheduling for threads. */
+#define _POSIX_THREAD_PRIORITY_SCHEDULING 1
+
+/* We support POSIX.1b semaphores, but only the non-shared form for now. */
+/*#define _POSIX_SEMAPHORES 1 XXX We are not quite there now. */
+
+/* Real-time signals are supported. */
+#define _POSIX_REALTIME_SIGNALS 1
+
+/* We support asynchronous I/O. */
+#define _POSIX_ASYNCHRONOUS_IO 1
+
+#endif /* posix_opt.h */
diff --git a/linuxthreads/sysdeps/unix/sysv/linux/configure b/linuxthreads/sysdeps/unix/sysv/linux/configure
new file mode 100644
index 0000000..229414d
--- /dev/null
+++ b/linuxthreads/sysdeps/unix/sysv/linux/configure
@@ -0,0 +1,3 @@
+# Local configure fragment for sysdeps/unix/sysv/linux.
+
+DEFINES="$DEFINES -D_LIBC_REENTRANT"