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authorWaldemar Brodkorb <wbx@openadk.org>2014-09-04 15:18:54 +0200
committerWaldemar Brodkorb <wbx@openadk.org>2014-09-04 15:18:54 +0200
commit36043b37739dffdaea8d31457570810e492268d7 (patch)
tree0045cba85b862ecca89cf7b5aff336bddbabad89 /libpthread/linuxthreads/sysdeps/sparc
parenta5352e212fcd4da83c8ff4fe542ef23c8e3187f8 (diff)
parent6d550ddd129b18cf800eab604f74536754526cd8 (diff)
Merge remote-tracking branch 'origin/upstream'
Diffstat (limited to 'libpthread/linuxthreads/sysdeps/sparc')
-rw-r--r--libpthread/linuxthreads/sysdeps/sparc/pspinlock.c95
-rw-r--r--libpthread/linuxthreads/sysdeps/sparc/pt-machine.h86
-rw-r--r--libpthread/linuxthreads/sysdeps/sparc/sparc32/pspinlock.c87
-rw-r--r--libpthread/linuxthreads/sysdeps/sparc/sparc32/pt-machine.h82
-rw-r--r--libpthread/linuxthreads/sysdeps/sparc/sparc32/sparcv9/pspinlock.c93
-rw-r--r--libpthread/linuxthreads/sysdeps/sparc/sparc64/pspinlock.c92
-rw-r--r--libpthread/linuxthreads/sysdeps/sparc/sparc64/pt-machine.h104
7 files changed, 164 insertions, 475 deletions
diff --git a/libpthread/linuxthreads/sysdeps/sparc/pspinlock.c b/libpthread/linuxthreads/sysdeps/sparc/pspinlock.c
index 72a9af5b1..4de152be3 100644
--- a/libpthread/linuxthreads/sysdeps/sparc/pspinlock.c
+++ b/libpthread/linuxthreads/sysdeps/sparc/pspinlock.c
@@ -1,14 +1,87 @@
-#include <features.h>
-#include <bits/wordsize.h>
+/* POSIX spinlock implementation. SPARC32 version.
+ Copyright (C) 2000 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
-#if __WORDSIZE == 32
+ 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.
-# if defined(__CONFIG_SPARC_V9B__)
-# include "sparc32/sparcv9b/pspinlock.c"
-# else
-# include "sparc32/pspinlock.c"
-# endif
+ 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.
-#else
-# include "sparc64/pspinlock.c"
-#endif
+ 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 <http://www.gnu.org/licenses/>. */
+
+#include <errno.h>
+#include <pthread.h>
+#include "internals.h"
+
+/* This implementation is similar to the one used in the Linux kernel. */
+int
+__pthread_spin_lock (pthread_spinlock_t *lock)
+{
+ __asm__ __volatile__
+ ("1: ldstub [%0], %%g2\n"
+ " orcc %%g2, 0x0, %%g0\n"
+ " bne,a 2f\n"
+ " ldub [%0], %%g2\n"
+ ".subsection 2\n"
+ "2: orcc %%g2, 0x0, %%g0\n"
+ " bne,a 2b\n"
+ " ldub [%0], %%g2\n"
+ " b,a 1b\n"
+ ".previous"
+ : /* no outputs */
+ : "r" (lock)
+ : "g2", "memory", "cc");
+ return 0;
+}
+weak_alias (__pthread_spin_lock, pthread_spin_lock)
+
+
+int
+__pthread_spin_trylock (pthread_spinlock_t *lock)
+{
+ int result;
+ __asm__ __volatile__
+ ("ldstub [%1], %0"
+ : "=r" (result)
+ : "r" (lock)
+ : "memory");
+ return result == 0 ? 0 : EBUSY;
+}
+weak_alias (__pthread_spin_trylock, pthread_spin_trylock)
+
+
+int
+__pthread_spin_unlock (pthread_spinlock_t *lock)
+{
+ *lock = 0;
+ return 0;
+}
+weak_alias (__pthread_spin_unlock, pthread_spin_unlock)
+
+
+int
+__pthread_spin_init (pthread_spinlock_t *lock, int pshared)
+{
+ /* We can ignore the `pshared' parameter. Since we are busy-waiting
+ all processes which can access the memory location `lock' points
+ to can use the spinlock. */
+ *lock = 0;
+ return 0;
+}
+weak_alias (__pthread_spin_init, pthread_spin_init)
+
+
+int
+__pthread_spin_destroy (pthread_spinlock_t *lock)
+{
+ /* Nothing to do. */
+ return 0;
+}
+weak_alias (__pthread_spin_destroy, pthread_spin_destroy)
diff --git a/libpthread/linuxthreads/sysdeps/sparc/pt-machine.h b/libpthread/linuxthreads/sysdeps/sparc/pt-machine.h
index ab90810f1..d502c759a 100644
--- a/libpthread/linuxthreads/sysdeps/sparc/pt-machine.h
+++ b/libpthread/linuxthreads/sysdeps/sparc/pt-machine.h
@@ -1,8 +1,82 @@
-#include <features.h>
-#include <bits/wordsize.h>
+/* Machine-dependent pthreads configuration and inline functions.
+ sparc version.
+ Copyright (C) 1996-1998, 2000-2003 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+ Contributed by Richard Henderson <rth@tamu.edu>.
-#if __WORDSIZE == 32
-# include "sparc32/pt-machine.h"
-#else
-# include "sparc64/pt-machine.h"
+ 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 <http://www.gnu.org/licenses/>. */
+
+#ifndef _PT_MACHINE_H
+#define _PT_MACHINE_H 1
+
+#ifndef PT_EI
+# define PT_EI __extern_always_inline
#endif
+
+extern long int testandset (int *spinlock);
+extern int __compare_and_swap (long int *p, long int oldval, long int newval);
+
+/* Spinlock implementation; required. */
+PT_EI long int
+testandset (int *spinlock)
+{
+ int ret;
+
+ __asm__ __volatile__("ldstub %1,%0"
+ : "=r"(ret), "=m"(*spinlock)
+ : "m"(*spinlock));
+
+ return ret;
+}
+
+
+/* Memory barrier; default is to do nothing */
+#define MEMORY_BARRIER() __asm__ __volatile__("stbar" : : : "memory")
+
+
+/* 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 + (2 * 64))
+register char *stack_pointer __asm__("%sp");
+
+
+/* Registers %g6 and %g7 are reserved by the ABI for "system use".
+ %g7 is specified in the TLS ABI as thread pointer -- we do the same. */
+struct _pthread_descr_struct;
+register struct _pthread_descr_struct *__thread_self __asm__("%g7");
+
+/* Return the thread descriptor for the current thread. */
+#define THREAD_SELF __thread_self
+
+/* Initialize the thread-unique value. */
+#define INIT_THREAD_SELF(descr, nr) (__thread_self = (descr))
+
+/* Access to data in the thread descriptor is easy. */
+#define THREAD_GETMEM(descr, member) \
+ ((void) sizeof (descr), THREAD_SELF->member)
+#define THREAD_GETMEM_NC(descr, member) \
+ ((void) sizeof (descr), THREAD_SELF->member)
+#define THREAD_SETMEM(descr, member, value) \
+ ((void) sizeof (descr), THREAD_SELF->member = (value))
+#define THREAD_SETMEM_NC(descr, member, value) \
+ ((void) sizeof (descr), THREAD_SELF->member = (value))
+
+/* We want the OS to assign stack addresses. */
+#define FLOATING_STACKS 1
+
+/* Maximum size of the stack if the rlimit is unlimited. */
+#define ARCH_STACK_MAX_SIZE 8*1024*1024
+
+#endif /* pt-machine.h */
diff --git a/libpthread/linuxthreads/sysdeps/sparc/sparc32/pspinlock.c b/libpthread/linuxthreads/sysdeps/sparc/sparc32/pspinlock.c
deleted file mode 100644
index 4de152be3..000000000
--- a/libpthread/linuxthreads/sysdeps/sparc/sparc32/pspinlock.c
+++ /dev/null
@@ -1,87 +0,0 @@
-/* POSIX spinlock implementation. SPARC32 version.
- Copyright (C) 2000 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 <http://www.gnu.org/licenses/>. */
-
-#include <errno.h>
-#include <pthread.h>
-#include "internals.h"
-
-/* This implementation is similar to the one used in the Linux kernel. */
-int
-__pthread_spin_lock (pthread_spinlock_t *lock)
-{
- __asm__ __volatile__
- ("1: ldstub [%0], %%g2\n"
- " orcc %%g2, 0x0, %%g0\n"
- " bne,a 2f\n"
- " ldub [%0], %%g2\n"
- ".subsection 2\n"
- "2: orcc %%g2, 0x0, %%g0\n"
- " bne,a 2b\n"
- " ldub [%0], %%g2\n"
- " b,a 1b\n"
- ".previous"
- : /* no outputs */
- : "r" (lock)
- : "g2", "memory", "cc");
- return 0;
-}
-weak_alias (__pthread_spin_lock, pthread_spin_lock)
-
-
-int
-__pthread_spin_trylock (pthread_spinlock_t *lock)
-{
- int result;
- __asm__ __volatile__
- ("ldstub [%1], %0"
- : "=r" (result)
- : "r" (lock)
- : "memory");
- return result == 0 ? 0 : EBUSY;
-}
-weak_alias (__pthread_spin_trylock, pthread_spin_trylock)
-
-
-int
-__pthread_spin_unlock (pthread_spinlock_t *lock)
-{
- *lock = 0;
- return 0;
-}
-weak_alias (__pthread_spin_unlock, pthread_spin_unlock)
-
-
-int
-__pthread_spin_init (pthread_spinlock_t *lock, int pshared)
-{
- /* We can ignore the `pshared' parameter. Since we are busy-waiting
- all processes which can access the memory location `lock' points
- to can use the spinlock. */
- *lock = 0;
- return 0;
-}
-weak_alias (__pthread_spin_init, pthread_spin_init)
-
-
-int
-__pthread_spin_destroy (pthread_spinlock_t *lock)
-{
- /* Nothing to do. */
- return 0;
-}
-weak_alias (__pthread_spin_destroy, pthread_spin_destroy)
diff --git a/libpthread/linuxthreads/sysdeps/sparc/sparc32/pt-machine.h b/libpthread/linuxthreads/sysdeps/sparc/sparc32/pt-machine.h
deleted file mode 100644
index d502c759a..000000000
--- a/libpthread/linuxthreads/sysdeps/sparc/sparc32/pt-machine.h
+++ /dev/null
@@ -1,82 +0,0 @@
-/* Machine-dependent pthreads configuration and inline functions.
- sparc version.
- Copyright (C) 1996-1998, 2000-2003 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 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 <http://www.gnu.org/licenses/>. */
-
-#ifndef _PT_MACHINE_H
-#define _PT_MACHINE_H 1
-
-#ifndef PT_EI
-# define PT_EI __extern_always_inline
-#endif
-
-extern long int testandset (int *spinlock);
-extern int __compare_and_swap (long int *p, long int oldval, long int newval);
-
-/* Spinlock implementation; required. */
-PT_EI long int
-testandset (int *spinlock)
-{
- int ret;
-
- __asm__ __volatile__("ldstub %1,%0"
- : "=r"(ret), "=m"(*spinlock)
- : "m"(*spinlock));
-
- return ret;
-}
-
-
-/* Memory barrier; default is to do nothing */
-#define MEMORY_BARRIER() __asm__ __volatile__("stbar" : : : "memory")
-
-
-/* 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 + (2 * 64))
-register char *stack_pointer __asm__("%sp");
-
-
-/* Registers %g6 and %g7 are reserved by the ABI for "system use".
- %g7 is specified in the TLS ABI as thread pointer -- we do the same. */
-struct _pthread_descr_struct;
-register struct _pthread_descr_struct *__thread_self __asm__("%g7");
-
-/* Return the thread descriptor for the current thread. */
-#define THREAD_SELF __thread_self
-
-/* Initialize the thread-unique value. */
-#define INIT_THREAD_SELF(descr, nr) (__thread_self = (descr))
-
-/* Access to data in the thread descriptor is easy. */
-#define THREAD_GETMEM(descr, member) \
- ((void) sizeof (descr), THREAD_SELF->member)
-#define THREAD_GETMEM_NC(descr, member) \
- ((void) sizeof (descr), THREAD_SELF->member)
-#define THREAD_SETMEM(descr, member, value) \
- ((void) sizeof (descr), THREAD_SELF->member = (value))
-#define THREAD_SETMEM_NC(descr, member, value) \
- ((void) sizeof (descr), THREAD_SELF->member = (value))
-
-/* We want the OS to assign stack addresses. */
-#define FLOATING_STACKS 1
-
-/* Maximum size of the stack if the rlimit is unlimited. */
-#define ARCH_STACK_MAX_SIZE 8*1024*1024
-
-#endif /* pt-machine.h */
diff --git a/libpthread/linuxthreads/sysdeps/sparc/sparc32/sparcv9/pspinlock.c b/libpthread/linuxthreads/sysdeps/sparc/sparc32/sparcv9/pspinlock.c
deleted file mode 100644
index fb49ca37e..000000000
--- a/libpthread/linuxthreads/sysdeps/sparc/sparc32/sparcv9/pspinlock.c
+++ /dev/null
@@ -1,93 +0,0 @@
-/* POSIX spinlock implementation. SPARC v9 version.
- Copyright (C) 2000 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 <http://www.gnu.org/licenses/>. */
-
-#include <errno.h>
-#include <pthread.h>
-#include "internals.h"
-
-
-/* This implementation is similar to the one used in the Linux kernel. */
-int
-__pthread_spin_lock (pthread_spinlock_t *lock)
-{
- __asm__ __volatile__
- ("1: ldstub [%0], %%g2\n"
- " brnz,pn %%g2, 2f\n"
- " membar #StoreLoad | #StoreStore\n"
- ".subsection 2\n"
- "2: ldub [%0], %%g2\n"
- " brnz,pt %%g2, 2b\n"
- " membar #LoadLoad\n"
- " b,a,pt %%xcc, 1b\n"
- ".previous"
- : /* no outputs */
- : "r" (lock)
- : "g2", "memory");
- return 0;
-}
-weak_alias (__pthread_spin_lock, pthread_spin_lock)
-
-
-int
-__pthread_spin_trylock (pthread_spinlock_t *lock)
-{
- int result;
- __asm__ __volatile__
- ("ldstub [%1], %0\n"
- "membar #StoreLoad | #StoreStore"
- : "=r" (result)
- : "r" (lock)
- : "memory");
- return result == 0 ? 0 : EBUSY;
-}
-weak_alias (__pthread_spin_trylock, pthread_spin_trylock)
-
-
-int
-__pthread_spin_unlock (pthread_spinlock_t *lock)
-{
- __asm__ __volatile__
- ("membar #StoreStore | #LoadStore\n"
- "stb %%g0, [%0]"
- :
- : "r" (lock)
- : "memory");
- return 0;
-}
-weak_alias (__pthread_spin_unlock, pthread_spin_unlock)
-
-
-int
-__pthread_spin_init (pthread_spinlock_t *lock, int pshared)
-{
- /* We can ignore the `pshared' parameter. Since we are busy-waiting
- all processes which can access the memory location `lock' points
- to can use the spinlock. */
- *lock = 0;
- return 0;
-}
-weak_alias (__pthread_spin_init, pthread_spin_init)
-
-
-int
-__pthread_spin_destroy (pthread_spinlock_t *lock)
-{
- /* Nothing to do. */
- return 0;
-}
-weak_alias (__pthread_spin_destroy, pthread_spin_destroy)
diff --git a/libpthread/linuxthreads/sysdeps/sparc/sparc64/pspinlock.c b/libpthread/linuxthreads/sysdeps/sparc/sparc64/pspinlock.c
deleted file mode 100644
index 743cb77bf..000000000
--- a/libpthread/linuxthreads/sysdeps/sparc/sparc64/pspinlock.c
+++ /dev/null
@@ -1,92 +0,0 @@
-/* POSIX spinlock implementation. SPARC64 version.
- Copyright (C) 2000 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 <http://www.gnu.org/licenses/>. */
-
-#include <errno.h>
-#include <pthread.h>
-#include "internals.h"
-
-/* This implementation is similar to the one used in the Linux kernel. */
-int
-__pthread_spin_lock (pthread_spinlock_t *lock)
-{
- __asm__ __volatile__
- ("1: ldstub [%0], %%g5\n"
- " brnz,pn %%g5, 2f\n"
- " membar #StoreLoad | #StoreStore\n"
- ".subsection 2\n"
- "2: ldub [%0], %%g5\n"
- " brnz,pt %%g5, 2b\n"
- " membar #LoadLoad\n"
- " b,a,pt %%xcc, 1b\n"
- ".previous"
- : /* no outputs */
- : "r" (lock)
- : "g5", "memory");
- return 0;
-}
-weak_alias (__pthread_spin_lock, pthread_spin_lock)
-
-
-int
-__pthread_spin_trylock (pthread_spinlock_t *lock)
-{
- int result;
- __asm__ __volatile__
- ("ldstub [%1], %0\n"
- "membar #StoreLoad | #StoreStore"
- : "=r" (result)
- : "r" (lock)
- : "memory");
- return result == 0 ? 0 : EBUSY;
-}
-weak_alias (__pthread_spin_trylock, pthread_spin_trylock)
-
-
-int
-__pthread_spin_unlock (pthread_spinlock_t *lock)
-{
- __asm__ __volatile__
- ("membar #StoreStore | #LoadStore\n"
- "stb %%g0, [%0]"
- :
- : "r" (lock)
- : "memory");
- return 0;
-}
-weak_alias (__pthread_spin_unlock, pthread_spin_unlock)
-
-
-int
-__pthread_spin_init (pthread_spinlock_t *lock, int pshared)
-{
- /* We can ignore the `pshared' parameter. Since we are busy-waiting
- all processes which can access the memory location `lock' points
- to can use the spinlock. */
- *lock = 0;
- return 0;
-}
-weak_alias (__pthread_spin_init, pthread_spin_init)
-
-
-int
-__pthread_spin_destroy (pthread_spinlock_t *lock)
-{
- /* Nothing to do. */
- return 0;
-}
-weak_alias (__pthread_spin_destroy, pthread_spin_destroy)
diff --git a/libpthread/linuxthreads/sysdeps/sparc/sparc64/pt-machine.h b/libpthread/linuxthreads/sysdeps/sparc/sparc64/pt-machine.h
deleted file mode 100644
index e3c73d967..000000000
--- a/libpthread/linuxthreads/sysdeps/sparc/sparc64/pt-machine.h
+++ /dev/null
@@ -1,104 +0,0 @@
-/* Machine-dependent pthreads configuration and inline functions.
- Sparc v9 version.
- Copyright (C) 1997-2002, 2003 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 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 <http://www.gnu.org/licenses/>. */
-
-#ifndef _PT_MACHINE_H
-#define _PT_MACHINE_H 1
-
-#ifndef PT_EI
-# define PT_EI __extern_always_inline
-#endif
-
-extern long int testandset (int *spinlock);
-extern int __compare_and_swap (long int *p, long int oldval, long int newval);
-
-/* Spinlock implementation; required. */
-PT_EI long int
-testandset (int *spinlock)
-{
- int ret;
-
- __asm__ __volatile__("ldstub %1,%0"
- : "=r" (ret), "=m" (*spinlock) : "m" (*spinlock));
-
- return ret;
-}
-
-
-/* Memory barrier; default is to do nothing */
-#define MEMORY_BARRIER() \
- __asm__ __volatile__("membar #LoadLoad | #LoadStore | #StoreLoad | #StoreStore" : : : "memory")
-/* Read barrier. */
-#define READ_MEMORY_BARRIER() \
- __asm__ __volatile__("membar #LoadLoad | #LoadStore" : : : "memory")
-/* Write barrier. */
-#define WRITE_MEMORY_BARRIER() \
- __asm__ __volatile__("membar #StoreLoad | #StoreStore" : : : "memory")
-
-
-/* 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 + (2 * 128))
-register char *stack_pointer __asm__ ("%sp");
-
-
-/* Registers %g6 and %g7 are reserved by the ABI for "system use". The
- TLS ABI specifies %g7 as the thread pointer. */
-struct _pthread_descr_struct;
-register struct _pthread_descr_struct *__thread_self __asm__ ("%g7");
-
-/* Return the thread descriptor for the current thread. */
-#define THREAD_SELF __thread_self
-
-/* Initialize the thread-unique value. */
-#define INIT_THREAD_SELF(descr, nr) (__thread_self = (descr))
-
-
-/* Compare-and-swap for semaphores. */
-
-#define HAS_COMPARE_AND_SWAP
-PT_EI int
-__compare_and_swap (long int *p, long int oldval, long int newval)
-{
- long int readval;
-
- __asm__ __volatile__ ("casx [%4], %2, %0"
- : "=r"(readval), "=m"(*p)
- : "r"(oldval), "m"(*p), "r"(p), "0"(newval));
- MEMORY_BARRIER();
- return readval == oldval;
-}
-
-/* Access to data in the thread descriptor is easy. */
-#define THREAD_GETMEM(descr, member) \
- ((void) sizeof (descr), THREAD_SELF->member)
-#define THREAD_GETMEM_NC(descr, member) \
- ((void) sizeof (descr), THREAD_SELF->member)
-#define THREAD_SETMEM(descr, member, value) \
- ((void) sizeof (descr), THREAD_SELF->member = (value))
-#define THREAD_SETMEM_NC(descr, member, value) \
- ((void) sizeof (descr), THREAD_SELF->member = (value))
-
-/* We want the OS to assign stack addresses. */
-#define FLOATING_STACKS 1
-
-/* Maximum size of the stack if the rlimit is unlimited. */
-#define ARCH_STACK_MAX_SIZE 32*1024*1024
-
-#endif /* pt-machine.h */