Clean up __exit_thread.

12 files changed, 50 insertions, 55 deletions

diff --git a/sysdeps/aarch64/nptl/pthreaddef.h b/sysdeps/aarch64/nptl/pthreaddef.h
index 361a95c..9198314 100644
--- a/sysdeps/aarch64/nptl/pthreaddef.h
+++ b/sysdeps/aarch64/nptl/pthreaddef.h
@@ -30,8 +30,3 @@
 
 /* Location of current stack frame.  */
 #define CURRENT_STACK_FRAME	__builtin_frame_address (0)
-
-
-/* XXX Until we have a better place keep the definitions here.  */
-#define __exit_thread_inline(val) \
-  INLINE_SYSCALL (exit, 1, (val))
diff --git a/sysdeps/alpha/nptl/pthreaddef.h b/sysdeps/alpha/nptl/pthreaddef.h
index 4e56fd9..f54400c 100644
--- a/sysdeps/alpha/nptl/pthreaddef.h
+++ b/sysdeps/alpha/nptl/pthreaddef.h
@@ -29,9 +29,3 @@
 
 /* Location of current stack frame.  */
 #define CURRENT_STACK_FRAME	__builtin_frame_address (0)
-
-/* XXX Until we have a better place keep the definitions here.  */
-
-/* While there is no such syscall.  */
-#define __exit_thread_inline(val) \
-  INLINE_SYSCALL (exit, 1, (val))
diff --git a/sysdeps/arm/nptl/pthreaddef.h b/sysdeps/arm/nptl/pthreaddef.h
index 2488af9..ab1b05b 100644
--- a/sysdeps/arm/nptl/pthreaddef.h
+++ b/sysdeps/arm/nptl/pthreaddef.h
@@ -39,8 +39,3 @@
    return the hard FP minus 12.  Of course, this makes no sense
    without the obsolete APCS stack layout...  */
 #define CURRENT_STACK_FRAME	(__builtin_frame_address (0) - 12)
-
-
-/* XXX Until we have a better place keep the definitions here.  */
-#define __exit_thread_inline(val) \
-  INLINE_SYSCALL (exit, 1, (val))
diff --git a/sysdeps/unix/sysv/linux/exit-thread.S b/sysdeps/generic/exit-thread.h
index 741cea4..779e61e 100644
--- a/sysdeps/unix/sysv/linux/exit-thread.S
+++ b/sysdeps/generic/exit-thread.h
@@ -1,4 +1,5 @@
-/* Copyright (C) 1991-2014 Free Software Foundation, Inc.
+/* Call to terminate the current thread.  Stub version.
+   Copyright (C) 2014 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
@@ -15,8 +16,13 @@
    License along with the GNU C Library; if not, see
    <http://www.gnu.org/licenses/>.  */
 
-#include <sysdep.h>
+/* This causes the current thread to exit, without affecting other
+   threads in the process if there are any.  If there are no other
+   threads left, then this has the effect of _exit (0).  */
 
-PSEUDO (__exit_thread, exit, 1)
-	/* Shouldn't get here.  */
-PSEUDO_END(__exit_thread)
+static inline void __attribute__ ((noreturn, always_inline, unused))
+__exit_thread (void)
+{
+  while (1)
+    asm ("write me!");
+}
diff --git a/sysdeps/hppa/nptl/pthreaddef.h b/sysdeps/hppa/nptl/pthreaddef.h
index ee8765a..d0fffa0 100644
--- a/sysdeps/hppa/nptl/pthreaddef.h
+++ b/sysdeps/hppa/nptl/pthreaddef.h
@@ -31,9 +31,3 @@
 /* Location of current stack frame.  */
 #define CURRENT_STACK_FRAME  stack_pointer
 register char * stack_pointer __asm__ ("%r30");
-
-
-/* XXX Until we have a better place keep the definitions here.  */
-
-#define __exit_thread_inline(val) \
-  INLINE_SYSCALL (exit, 1, (val))
diff --git a/sysdeps/ia64/nptl/pthreaddef.h b/sysdeps/ia64/nptl/pthreaddef.h
index cf4763c..8fdd9e3 100644
--- a/sysdeps/ia64/nptl/pthreaddef.h
+++ b/sysdeps/ia64/nptl/pthreaddef.h
@@ -34,9 +34,3 @@
 /* Location of current stack frame.  */
 #define CURRENT_STACK_FRAME	__stack_pointer
 register char *__stack_pointer __asm__ ("sp");
-
-/* XXX Until we have a better place keep the definitions here.  */
-
-/* While there is no such syscall.  */
-#define __exit_thread_inline(val) \
-  INLINE_SYSCALL (exit, 1, (val))
diff --git a/sysdeps/m68k/nptl/pthreaddef.h b/sysdeps/m68k/nptl/pthreaddef.h
index 68bf11a..72d2b3e 100644
--- a/sysdeps/m68k/nptl/pthreaddef.h
+++ b/sysdeps/m68k/nptl/pthreaddef.h
@@ -31,8 +31,3 @@
 
 /* Location of current stack frame.  */
 #define CURRENT_STACK_FRAME	__builtin_frame_address (0)
-
-
-/* XXX Until we have a better place keep the definitions here.  */
-#define __exit_thread_inline(val) \
-  INLINE_SYSCALL (exit, 1, (val))
diff --git a/sysdeps/microblaze/nptl/pthreaddef.h b/sysdeps/microblaze/nptl/pthreaddef.h
index 37a44c1..38a61d1 100644
--- a/sysdeps/microblaze/nptl/pthreaddef.h
+++ b/sysdeps/microblaze/nptl/pthreaddef.h
@@ -33,8 +33,3 @@
 
 /* Location of current stack frame.  */
 #define CURRENT_STACK_FRAME __builtin_frame_address (0)
-
-/* XXX Until we have a better place keep the definitions here.  */
-
-#define __exit_thread_inline(val) \
-  INLINE_SYSCALL (exit, 1, (val))
diff --git a/sysdeps/mips/nptl/pthreaddef.h b/sysdeps/mips/nptl/pthreaddef.h
index 60f57de..da2366f 100644
--- a/sysdeps/mips/nptl/pthreaddef.h
+++ b/sysdeps/mips/nptl/pthreaddef.h
@@ -30,9 +30,3 @@
 
 /* Location of current stack frame.  */
 #define CURRENT_STACK_FRAME	__builtin_frame_address (0)
-
-
-/* XXX Until we have a better place keep the definitions here.  */
-
-#define __exit_thread_inline(val) \
-  INLINE_SYSCALL (exit, 1, (val))
diff --git a/sysdeps/tile/nptl/pthreaddef.h b/sysdeps/tile/nptl/pthreaddef.h
index f399725..646d09e 100644
--- a/sysdeps/tile/nptl/pthreaddef.h
+++ b/sysdeps/tile/nptl/pthreaddef.h
@@ -34,8 +34,3 @@
 
 /* Location of current stack frame.  */
 #define CURRENT_STACK_FRAME	__builtin_frame_address (0)
-
-/* XXX Until we have a better place keep the definitions here.  */
-
-#define __exit_thread_inline(val) \
-  INLINE_SYSCALL (exit, 1, (val))
diff --git a/sysdeps/unix/sysv/linux/Makefile b/sysdeps/unix/sysv/linux/Makefile
index 692487f..02eda45 100644
--- a/sysdeps/unix/sysv/linux/Makefile
+++ b/sysdeps/unix/sysv/linux/Makefile
@@ -141,7 +141,7 @@ endif
 ifeq ($(subdir),posix)
 sysdep_headers += bits/initspin.h
 
-sysdep_routines += exit-thread sched_getcpu
+sysdep_routines += sched_getcpu
 
 tests += tst-getcpu
 endif
diff --git a/sysdeps/unix/sysv/linux/exit-thread.h b/sysdeps/unix/sysv/linux/exit-thread.h
new file mode 100644
index 0000000..52891dd
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/exit-thread.h
@@ -0,0 +1,38 @@
+/* Call to terminate the current thread.  Linux version.
+   Copyright (C) 2014 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, see
+   <http://www.gnu.org/licenses/>.  */
+
+#include <sysdep.h>
+
+/* This causes the current thread to exit, without affecting other
+   threads in the process if there are any.  If there are no other
+   threads left, then this has the effect of _exit (0).  */
+
+static inline void __attribute__ ((noreturn, always_inline, unused))
+__exit_thread (void)
+{
+  /* Doing this in a loop is mostly just to satisfy the compiler that the
+     function really qualifies as noreturn.  It also means that in some
+     pathological situation where the system call does not get made or does
+     not work, the thread will simply spin rather than running off the end
+     of the caller and doing unexpectedly strange things.  */
+  while (1)
+    {
+      INTERNAL_SYSCALL_DECL (err);
+      INTERNAL_SYSCALL (exit, err, 1, 0);
+    }
+}