+2003-02-17 Kevin B. Hendricks <kevin.hendricks@sympatico.ca>
+ Franz Sirl <Franz.Sirl-kernel@lauterbach.com>
+
+ * sysdeps/powerpc/elf/libc-start.c: Handle NONTLS_INIT_TP.
+ * sysdeps/powerpc/powerpc32/__longjmp.S: Remove R2 handling.
+ * sysdeps/powerpc/powerpc32/setjmp.S: Likewise.
+ * sysdeps/powerpc/powerpc32/fpu/__longjmp.S: Likewise.
+ * sysdeps/powerpc/powerpc32/fpu/setjmp.S: Likewise.
+
2003-02-17 Franz Sirl <Franz.Sirl-kernel@lauterbach.com>
* sysdeps/unix/sysv/linux/powerpc/ftruncate64.c: Delete.
+2003-02-17 Kevin B. Hendricks <kevin.hendricks@sympatico.ca>
+ Franz Sirl <Franz.Sirl-kernel@lauterbach.com>
+
+ * sysdeps/powerpc/Makefile: Handle tcb-offsets.sym.
+ * sysdeps/powerpc/tcb-offsets.sym: New file.
+ * sysdeps/powerpc/tls.h: New file.
+ * sysdeps/powerpc/powerpc32/pt-machine.h (FLOATING_STACKS): Define.
+ (ARCH_STACK_MAX_SIZE): Define.
+ (THREAD_SELF): Define.
+ (INIT_THREAD_SELF): Define.
+ (THREAD_GETMEM): Define.
+ (THREAD_GETMEM_NC): Define.
+ (THREAD_SETMEM): Define.
+ (THREAD_SETMEM_NC): Define.
+ (__thread_self): Declare.
+ * sysdeps/unix/sysv/linux/powerpc/powerpc32/sysdep-cancel.h: Adjust
+ for thread register.
+
2003-02-14 Steven Munroe <sjmunroe@us.ibm.com>
* sysdeps/unix/sysv/linux/powerpc/powerpc64/vfork.S (__vfork):
# See CFLAGS-initfini.s above; this is the same code.
CFLAGS-pt-initfini.s = -g0 -fpic -O1
endif
+ifeq ($(subdir),csu)
+gen-as-const-headers += tcb-offsets.sym
+endif
need to make sure that the compiler has flushed everything to memory. */
#define MEMORY_BARRIER() __asm__ __volatile__ ("sync" : : : "memory")
+/* 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
+
/* 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");
+/* Register r2 (tp) is reserved by the ABI as "thread pointer". */
+struct _pthread_descr_struct;
+register struct _pthread_descr_struct *__thread_self __asm__("r2");
+
+/* 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) (descr), THREAD_SELF->member)
+#define THREAD_GETMEM_NC(descr, member) \
+ ((void) (descr), THREAD_SELF->member)
+#define THREAD_SETMEM(descr, member, value) \
+ ((void) (descr), THREAD_SELF->member = (value))
+#define THREAD_SETMEM_NC(descr, member, value) \
+ ((void) (descr), THREAD_SELF->member = (value))
+
/* Compare-and-swap for semaphores. */
/* note that test-and-set(x) is the same as !compare-and-swap(x, 0, 1) */
--- /dev/null
+#include <sysdep.h>
+#include <tls.h>
+
+MULTIPLE_THREADS_OFFSET offsetof (tcbhead_t, multiple_threads)
--- /dev/null
+/* Definitions for thread-local data handling. linuxthreads/PPC version.
+ Copyright (C) 2003 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, write to the Free
+ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ 02111-1307 USA. */
+
+#ifndef _TLS_H
+#define _TLS_H
+
+#ifndef __ASSEMBLER__
+
+# include <pt-machine.h>
+# include <stddef.h>
+
+/* Type for the dtv. */
+typedef union dtv
+{
+ size_t counter;
+ void *pointer;
+} dtv_t;
+
+typedef struct
+{
+ void *tcb; /* Pointer to the TCB. Not necessary the
+ thread descriptor used by libpthread. */
+ dtv_t *dtv;
+ void *self; /* Pointer to the thread descriptor. */
+ int multiple_threads;
+} tcbhead_t;
+
+#else /* __ASSEMBLER__ */
+# include <tcb-offsets.h>
+#endif /* __ASSEMBLER__ */
+
+#undef USE_TLS
+
+#if USE_TLS
+
+#else
+
+#define NONTLS_INIT_TP \
+ do { \
+ static const tcbhead_t nontls_init_tp \
+ = { .multiple_threads = 0 }; \
+ __thread_self = (__typeof (__thread_self)) &nontls_init_tp; \
+ } while (0)
+
+#endif /* USE_TLS */
+
+#endif /* tls.h */
02111-1307 USA. */
#include <sysdep.h>
+#include <tls.h>
#ifndef __ASSEMBLER__
# include <linuxthreads/internals.h>
#endif
# ifdef IS_IN_libpthread
# define CENABLE bl JUMPTARGET(__pthread_enable_asynccancel)
# define CDISABLE bl JUMPTARGET(__pthread_disable_asynccancel)
-# define __local_multiple_threads __pthread_multiple_threads
# else
# define CENABLE bl JUMPTARGET(__libc_enable_asynccancel)
# define CDISABLE bl JUMPTARGET(__libc_disable_asynccancel)
-# define __local_multiple_threads __libc_multiple_threads
# endif
# ifndef __ASSEMBLER__
-extern int __local_multiple_threads attribute_hidden;
-# define SINGLE_THREAD_P __builtin_expect (__local_multiple_threads == 0, 1)
+# define SINGLE_THREAD_P \
+ __builtin_expect (THREAD_GETMEM (THREAD_SELF, \
+ p_header.data.multiple_threads) == 0, 1)
# else
-# if !defined PIC
-# define SINGLE_THREAD_P \
- lis 10,__local_multiple_threads@ha; \
- lwz 10,__local_multiple_threads@l(10); \
+# define SINGLE_THREAD_P \
+ lwz 10,MULTIPLE_THREADS_OFFSET(2); \
cmpwi 10,0
-# else
-# define SINGLE_THREAD_P \
- mflr 9; \
- bl _GLOBAL_OFFSET_TABLE_@local-4; \
- mflr 10; \
- mtlr 9; \
- lwz 10,__local_multiple_threads@got(10); \
- lwz 10,0(10); \
- cmpwi 10,0
-# endif
# endif
#elif !defined __ASSEMBLER__
#ifndef SHARED
# include <tls.h>
extern void __pthread_initialize_minimal (void)
-# if !(USE_TLS - 0)
+# if !(USE_TLS - 0) && !defined NONTLS_INIT_TP
__attribute__ ((weak))
# endif
;
we need to setup errno. If there is no thread library and we
handle TLS the function is defined in the libc to initialized the
TLS handling. */
-# if !(USE_TLS - 0)
+# if !(USE_TLS - 0) && !defined NONTLS_INIT_TP
if (__pthread_initialize_minimal)
# endif
__pthread_initialize_minimal ();
CHECK_BOUNDS_BOTH_WIDE_LIT (r3, r8, r9, JB_SIZE)
lwz r1,(JB_GPR1*4)(r3)
- lwz r2,(JB_GPR2*4)(r3)
lwz r0,(JB_LR*4)(r3)
lwz r14,((JB_GPRS+0)*4)(r3)
lwz r15,((JB_GPRS+1)*4)(r3)
CHECK_BOUNDS_BOTH_WIDE_LIT (r3, r8, r9, JB_SIZE)
lwz r1,(JB_GPR1*4)(r3)
- lwz r2,(JB_GPR2*4)(r3)
lwz r0,(JB_LR*4)(r3)
lwz r14,((JB_GPRS+0)*4)(r3)
lfd fp14,((JB_FPRS+0*2)*4)(r3)
stw r1,(JB_GPR1*4)(3)
mflr r0
- stw r2,(JB_GPR2*4)(3)
stw r14,((JB_GPRS+0)*4)(3)
stfd fp14,((JB_FPRS+0*2)*4)(3)
stw r0,(JB_LR*4)(3)
stw r1,(JB_GPR1*4)(3)
mflr r0
- stw r2,(JB_GPR2*4)(3)
stw r14,((JB_GPRS+0)*4)(3)
stw r0,(JB_LR*4)(3)
stw r15,((JB_GPRS+1)*4)(3)
-/* Copyright (C) 1992, 1995, 1997, 1998 Free Software Foundation, Inc.
+/* Copyright (C) 1992, 1995, 1997, 1998, 2003 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
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
02111-1307 USA. */
+#include <errno.h>
#include <string.h>
#include <termios.h>
#include <unistd.h>
#include <sys/ioctl.h>
#include <sys/types.h>
+#include <sysdep.h>
/* The difference here is that the termios structure used in the
kernel is not the same as we use in the libc. Therefore we must
-/* Copyright (C) 1993, 1996, 1997, 1998, 2002 Free Software Foundation, Inc.
+/* Copyright (C) 1993,1996,1997,1998,2002,2003 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
#include <termios.h>
#include <sys/ioctl.h>
#include <sys/types.h>
+#include <sysdep.h>
/* The difference here is that the termios structure used in the
kernel is not the same as we use in the libc. Therefore we must
projects / platform / upstream / glibc.git / commitdiff