diff options
Diffstat (limited to 'libpthread')
63 files changed, 1578 insertions, 1662 deletions
diff --git a/libpthread/linuxthreads.old/sysdeps/arm/pt-machine.h b/libpthread/linuxthreads.old/sysdeps/arm/pt-machine.h index 438c12ab9..2b877f980 100644 --- a/libpthread/linuxthreads.old/sysdeps/arm/pt-machine.h +++ b/libpthread/linuxthreads.old/sysdeps/arm/pt-machine.h @@ -21,12 +21,50 @@ #ifndef _PT_MACHINE_H #define _PT_MACHINE_H 1 -#include <features.h> +#include <sys/syscall.h> +#include <unistd.h> #ifndef PT_EI # define PT_EI __extern_always_inline #endif +#if defined(__thumb__) +#if defined(__USE_LDREXSTREX__) +PT_EI long int ldrex(int *spinlock) +{ + long int ret; + __asm__ __volatile__( + "ldrex %0, [%1]\n" + : "=r"(ret) + : "r"(spinlock) : "memory"); + return ret; +} + +PT_EI long int strex(int val, int *spinlock) +{ + long int ret; + __asm__ __volatile__( + "strex %0, %1, [%2]\n" + : "=r"(ret) + : "r" (val), "r"(spinlock) : "memory"); + return ret; +} + +/* Spinlock implementation; required. */ +PT_EI long int +testandset (int *spinlock) +{ + register unsigned int ret; + + do { + ret = ldrex(spinlock); + } while (strex(1, spinlock)); + + return ret; +} + +#else /* __USE_LDREXSTREX__ */ + /* 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. */ @@ -36,8 +74,6 @@ PT_EI long int testandset (int *spinlock); PT_EI long int testandset (int *spinlock) { register unsigned int ret; - -#if defined(__thumb__) void *pc; __asm__ __volatile__( ".align 0\n" @@ -50,15 +86,21 @@ PT_EI long int testandset (int *spinlock) "\t.force_thumb" : "=r"(ret), "=r"(pc) : "0"(1), "r"(spinlock)); -#else + return ret; +} +#endif +#else /* __thumb__ */ + +PT_EI long int testandset (int *spinlock); +PT_EI long int testandset (int *spinlock) +{ + register unsigned int ret; __asm__ __volatile__("swp %0, %1, [%2]" : "=r"(ret) : "0"(1), "r"(spinlock)); -#endif - return ret; } - +#endif /* Get some notion of the current stack. Need not be exactly the top of the stack, just something somewhere in the current frame. */ diff --git a/libpthread/linuxthreads/Makefile.in b/libpthread/linuxthreads/Makefile.in index 4a499f78e..c1ec1c9c7 100644 --- a/libpthread/linuxthreads/Makefile.in +++ b/libpthread/linuxthreads/Makefile.in @@ -65,7 +65,7 @@ CFLAGS-OMIT-libc_pthread_init.c := $(CFLAGS-dir_linuxthreads) libpthread_libc_CSRC := \ forward.c libc-cancellation.c libc_pthread_init.c # alloca_cutoff.c libpthread_libc_OBJ := $(patsubst %.c, $(libpthread_OUT)/%.o,$(libpthread_libc_CSRC)) -libc-static-y += $(libpthread_OUT)/libc_pthread_init.o +libc-static-y += $(libpthread_OUT)/libc_pthread_init.o $(libpthread_OUT)/libc-cancellation.o libc-shared-y += $(libpthread_libc_OBJ:.o=.oS) libpthread-static-y += $(patsubst %,$(libpthread_OUT)/%.o,$(libpthread_static_SRC)) diff --git a/libpthread/linuxthreads/attr.c b/libpthread/linuxthreads/attr.c index a621c2dcc..959ffda99 100644 --- a/libpthread/linuxthreads/attr.c +++ b/libpthread/linuxthreads/attr.c @@ -172,9 +172,6 @@ int __pthread_attr_setstackaddr(pthread_attr_t *attr, void *stackaddr) } weak_alias (__pthread_attr_setstackaddr, pthread_attr_setstackaddr) -link_warning (pthread_attr_setstackaddr, - "the use of `pthread_attr_setstackaddr' is deprecated, use `pthread_attr_setstack'") - int __pthread_attr_getstackaddr(const pthread_attr_t *attr, void **stackaddr) { /* XXX This function has a stupid definition. The standard specifies @@ -185,8 +182,6 @@ int __pthread_attr_getstackaddr(const pthread_attr_t *attr, void **stackaddr) } weak_alias (__pthread_attr_getstackaddr, pthread_attr_getstackaddr) -link_warning (pthread_attr_getstackaddr, - "the use of `pthread_attr_getstackaddr' is deprecated, use `pthread_attr_getstack'") #endif diff --git a/libpthread/linuxthreads/sysdeps/m68k/pspinlock.c b/libpthread/linuxthreads/sysdeps/m68k/pspinlock.c index c26a2786f..af77c2a9d 100644 --- a/libpthread/linuxthreads/sysdeps/m68k/pspinlock.c +++ b/libpthread/linuxthreads/sysdeps/m68k/pspinlock.c @@ -27,10 +27,15 @@ __pthread_spin_lock (pthread_spinlock_t *lock) unsigned int val; do - __asm__ __volatile__ ("tas %1; sne %0" - : "=dm" (val), "=m" (*lock) - : "m" (*lock) - : "cc"); + __asm__ __volatile__ ( +#if !defined(__mcoldfire__) && !defined(__mcf5200__) && !defined(__m68000) + "tas %1; sne %0" +#else + "bset #7,%1; sne %0" +#endif + : "=dm" (val), "=m" (*lock) + : "m" (*lock) + : "cc"); while (val); return 0; @@ -43,7 +48,12 @@ __pthread_spin_trylock (pthread_spinlock_t *lock) { unsigned int val; - __asm__ __volatile__ ("tas %1; sne %0" + __asm__ __volatile__ ( +#if !defined(__mcoldfire__) && !defined(__mcf5200__) && !defined(__m68000) + "tas %1; sne %0" +#else + "bset #7,%1; sne %0" +#endif : "=dm" (val), "=m" (*lock) : "m" (*lock) : "cc"); diff --git a/libpthread/linuxthreads/sysdeps/m68k/pt-machine.h b/libpthread/linuxthreads/sysdeps/m68k/pt-machine.h index e2d7bdc81..1eb9fd57b 100644 --- a/libpthread/linuxthreads/sysdeps/m68k/pt-machine.h +++ b/libpthread/linuxthreads/sysdeps/m68k/pt-machine.h @@ -28,12 +28,18 @@ #endif /* Spinlock implementation; required. */ +PT_EI long int testandset (int *spinlock); PT_EI long int testandset (int *spinlock) { char ret; - __asm__ __volatile__("tas %1; sne %0" + __asm__ __volatile__( +#if !defined(__mcoldfire__) && !defined(__mcf5200__) && !defined(__m68000) + "tas %1; sne %0" +#else + "bset #7,%1; sne %0" +#endif : "=dm"(ret), "=m"(*spinlock) : "m"(*spinlock) : "cc"); @@ -50,6 +56,7 @@ register char * stack_pointer __asm__ ("%sp"); /* Compare-and-swap for semaphores. */ +#if !defined(__mcoldfire__) && !defined(__mcf5200__) && !defined(__mc68000) #define HAS_COMPARE_AND_SWAP PT_EI int __compare_and_swap (long int *p, long int oldval, long int newval) @@ -63,5 +70,5 @@ __compare_and_swap (long int *p, long int oldval, long int newval) return ret; } - +#endif #endif /* pt-machine.h */ diff --git a/libpthread/linuxthreads/sysdeps/pthread/herrno-loc.c b/libpthread/linuxthreads/sysdeps/pthread/herrno-loc.c index 706faeff3..634c75245 100644 --- a/libpthread/linuxthreads/sysdeps/pthread/herrno-loc.c +++ b/libpthread/linuxthreads/sysdeps/pthread/herrno-loc.c @@ -16,7 +16,9 @@ <http://www.gnu.org/licenses/>. */ #include <netdb.h> +#ifdef __UCLIBC_HAS_TLS__ #include <tls.h> +#endif #include <linuxthreads/internals.h> #include <sysdep-cancel.h> diff --git a/libpthread/linuxthreads/sysdeps/s390/pspinlock.c b/libpthread/linuxthreads/sysdeps/s390/pspinlock.c deleted file mode 100644 index be7578642..000000000 --- a/libpthread/linuxthreads/sysdeps/s390/pspinlock.c +++ /dev/null @@ -1,90 +0,0 @@ -/* POSIX spinlock implementation. S/390 version. - Copyright (C) 2000, 2004 Free Software Foundation, Inc. - Contributed by Martin Schwidefsky (schwidefsky@de.ibm.com). - 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. - But the kernel is byte instructions for the memory access. This is - faster but unusable here. The problem is that only 128 - threads/processes could use the spinlock at the same time. If (by - a design error in the program) a thread/process would hold the - spinlock for a time long enough to accumulate 128 waiting - processes, the next one will find a positive value in the spinlock - and assume it is unlocked. We cannot accept that. */ - -int -__pthread_spin_lock (pthread_spinlock_t *lock) -{ - __asm__ __volatile__(" basr 1,0\n" - "0: slr 0,0\n" - " cs 0,1,%1\n" - " jl 0b\n" - : "=m" (*lock) - : "m" (*lock) : "0", "1", "cc" ); - return 0; -} -weak_alias (__pthread_spin_lock, pthread_spin_lock) - -int -__pthread_spin_trylock (pthread_spinlock_t *lock) -{ - int oldval; - - __asm__ __volatile__(" slr %1,%1\n" - " basr 1,0\n" - "0: cs %1,1,%0" - : "=m" (*lock), "=&d" (oldval) - : "m" (*lock) : "1", "cc" ); - return oldval == 0 ? 0 : EBUSY; -} -weak_alias (__pthread_spin_trylock, pthread_spin_trylock) - - -int -__pthread_spin_unlock (pthread_spinlock_t *lock) -{ - __asm__ __volatile__(" xc 0(4,%0),0(%0)\n" - " bcr 15,0" - : : "a" (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/s390/s390-32/pt-machine.h b/libpthread/linuxthreads/sysdeps/s390/s390-32/pt-machine.h deleted file mode 100644 index 51505a97d..000000000 --- a/libpthread/linuxthreads/sysdeps/s390/s390-32/pt-machine.h +++ /dev/null @@ -1,119 +0,0 @@ -/* Machine-dependent pthreads configuration and inline functions. - S390 version. - Copyright (C) 1999, 2000, 2001, 2002, 2003 Free Software Foundation, Inc. - Contributed by Martin Schwidefsky (schwidefsky@de.ibm.com). - 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/>. */ - -#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); - -/* For multiprocessor systems, we want to ensure all memory accesses - are completed before we reset a lock. On other systems, we still - need to make sure that the compiler has flushed everything to memory. */ -#define MEMORY_BARRIER() __asm__ __volatile__ ("bcr 15,0" : : : "memory") - -/* Spinlock implementation; required. */ -PT_EI long int -testandset (int *spinlock) -{ - int ret; - - __asm__ __volatile__( - " la 1,%1\n" - " lhi 0,1\n" - " l %0,%1\n" - "0: cs %0,0,0(1)\n" - " jl 0b" - : "=&d" (ret), "+m" (*spinlock) - : : "0", "1", "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__ ("15"); - -#ifdef __UCLIBC_HAS_TLS__ -/* Return the thread descriptor for the current thread. */ -# define THREAD_SELF ((pthread_descr) __builtin_thread_pointer ()) - -/* Initialize the thread-unique value. */ -#define INIT_THREAD_SELF(descr, nr) __builtin_set_thread_pointer (descr) -#else -/* Return the thread descriptor for the current thread. - S/390 registers uses access register 0 as "thread register". */ -#define THREAD_SELF ({ \ - register pthread_descr __self; \ - __asm__ ("ear %0,%%a0" : "=d" (__self) ); \ - __self; \ -}) - -/* Initialize the thread-unique value. */ -#define INIT_THREAD_SELF(descr, nr) ({ \ - __asm__ ("sar %%a0,%0" : : "d" (descr) ); \ -}) -#endif - -/* 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 - -/* 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) -{ - int retval; - - __asm__ __volatile__( - " la 1,%1\n" - " lr 0,%2\n" - " cs 0,%3,0(1)\n" - " ipm %0\n" - " srl %0,28\n" - "0:" - : "=&d" (retval), "+m" (*p) - : "d" (oldval) , "d" (newval) - : "cc", "0", "1" ); - return retval == 0; -} - -#endif /* pt-machine.h */ diff --git a/libpthread/linuxthreads/sysdeps/s390/s390-64/pt-machine.h b/libpthread/linuxthreads/sysdeps/s390/s390-64/pt-machine.h deleted file mode 100644 index 4bff85aec..000000000 --- a/libpthread/linuxthreads/sysdeps/s390/s390-64/pt-machine.h +++ /dev/null @@ -1,124 +0,0 @@ -/* Machine-dependent pthreads configuration and inline functions. - 64 bit S/390 version. - Copyright (C) 2001, 2002, 2003 Free Software Foundation, Inc. - Contributed by Martin Schwidefsky (schwidefsky@de.ibm.com). - 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/>. */ - -#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); - -/* For multiprocessor systems, we want to ensure all memory accesses - are completed before we reset a lock. On other systems, we still - need to make sure that the compiler has flushed everything to memory. */ -#define MEMORY_BARRIER() __asm__ __volatile__ ("bcr 15,0" : : : "memory") - -/* Spinlock implementation; required. */ -PT_EI long int -testandset (int *spinlock) -{ - int ret; - - __asm__ __volatile__( - " la 1,%1\n" - " lhi 0,1\n" - " l %0,%1\n" - "0: cs %0,0,0(1)\n" - " jl 0b" - : "=&d" (ret), "+m" (*spinlock) - : : "0", "1", "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__ ("15"); - -#ifdef __UCLIBC_HAS_TLS__ -/* Return the thread descriptor for the current thread. */ -# define THREAD_SELF ((pthread_descr) __builtin_thread_pointer ()) - -/* Initialize the thread-unique value. */ -#define INIT_THREAD_SELF(descr, nr) __builtin_set_thread_pointer (descr) -#else -/* Return the thread descriptor for the current thread. - 64 bit S/390 uses access register 0 and 1 as "thread register". */ -#define THREAD_SELF ({ \ - register pthread_descr __self; \ - __asm__ (" ear %0,%%a0\n" \ - " sllg %0,%0,32\n" \ - " ear %0,%%a1\n" \ - : "=d" (__self) ); \ - __self; \ -}) - -/* Initialize the thread-unique value. */ -#define INIT_THREAD_SELF(descr, nr) ({ \ - __asm__ (" sar %%a1,%0\n" \ - " srlg 0,%0,32\n" \ - " sar %%a0,0\n" \ - : : "d" (descr) : "0" ); \ -}) -#endif - -/* 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 - -/* 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) -{ - int retval; - - __asm__ __volatile__( - " lgr 0,%2\n" - " csg 0,%3,%1\n" - " ipm %0\n" - " srl %0,28\n" - "0:" - : "=&d" (retval), "+m" (*p) - : "d" (oldval) , "d" (newval) - : "cc", "0"); - return retval == 0; -} - -#endif /* pt-machine.h */ diff --git a/libpthread/linuxthreads/sysdeps/s390/tcb-offsets.sym b/libpthread/linuxthreads/sysdeps/s390/tcb-offsets.sym deleted file mode 100644 index aee6be257..000000000 --- a/libpthread/linuxthreads/sysdeps/s390/tcb-offsets.sym +++ /dev/null @@ -1,4 +0,0 @@ -#include <sysdep.h> -#include <tls.h> - -MULTIPLE_THREADS_OFFSET offsetof (tcbhead_t, multiple_threads) diff --git a/libpthread/linuxthreads/sysdeps/s390/tls.h b/libpthread/linuxthreads/sysdeps/s390/tls.h deleted file mode 100644 index d987bdbc2..000000000 --- a/libpthread/linuxthreads/sysdeps/s390/tls.h +++ /dev/null @@ -1,144 +0,0 @@ -/* Definitions for thread-local data handling. linuxthreads/s390 version. - Copyright (C) 2002, 2003, 2005 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/>. */ - -#ifndef _TLS_H -#define _TLS_H - -#ifndef __ASSEMBLER__ - -# include <pt-machine.h> -# include <stdbool.h> -# include <stddef.h> - -/* Type for the dtv. */ -typedef union dtv -{ - size_t counter; - struct - { - void *val; - bool is_static; - } 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__ */ - -/* TLS is always supported if the tools support it. There are no - kernel dependencies. To avoid bothering with the TLS support code - at all, use configure --without-tls. - - We need USE_TLS to be consistently defined, for ldsodefs.h - conditionals. */ - -#ifdef HAVE_TLS_SUPPORT - -/* Signal that TLS support is available. */ -# define USE_TLS 1 - -# ifndef __ASSEMBLER__ -/* Get system call information. */ -# include <sysdep.h> - - -/* Get the thread descriptor definition. */ -# include <linuxthreads/descr.h> - -/* This is the size of the initial TCB. */ -# define TLS_INIT_TCB_SIZE sizeof (tcbhead_t) - -/* Alignment requirements for the initial TCB. */ -# define TLS_INIT_TCB_ALIGN __alignof__ (tcbhead_t) - -/* This is the size of the TCB. */ -# define TLS_TCB_SIZE sizeof (struct _pthread_descr_struct) - -/* Alignment requirements for the TCB. */ -# define TLS_TCB_ALIGN __alignof__ (struct _pthread_descr_struct) - -/* The TCB can have any size and the memory following the address the - thread pointer points to is unspecified. Allocate the TCB there. */ -# define TLS_TCB_AT_TP 1 - - -/* Install the dtv pointer. The pointer passed is to the element with - index -1 which contain the length. */ -# define INSTALL_DTV(descr, dtvp) \ - ((tcbhead_t *) (descr))->dtv = (dtvp) + 1 - -/* Install new dtv for current thread. */ -# define INSTALL_NEW_DTV(dtv) \ - (((tcbhead_t *) __builtin_thread_pointer ())->dtv = (dtv)) - -/* Return dtv of given thread descriptor. */ -# define GET_DTV(descr) \ - (((tcbhead_t *) (descr))->dtv) - -/* Code to initially initialize the thread pointer. This might need - special attention since 'errno' is not yet available and if the - operation can cause a failure 'errno' must not be touched. - - The value of this macro is null if successful, or an error string. */ -# define TLS_INIT_TP(descr, secondcall) \ - ({ \ - void *_descr = (descr); \ - tcbhead_t *head = _descr; \ - \ - head->tcb = _descr; \ - /* For now the thread descriptor is at the same address. */ \ - head->self = _descr; \ - \ - __builtin_set_thread_pointer (_descr); \ - NULL; \ - }) - -/* Return the address of the dtv for the current thread. */ -# define THREAD_DTV() \ - (((tcbhead_t *) __builtin_thread_pointer ())->dtv) - -# endif /* __ASSEMBLER__ */ - -#else /* HAVE_TLS_SUPPORT && (FLOATING_STACKS || !IS_IN_libpthread) */ - -# ifndef __ASSEMBLER__ - -/* Get the thread descriptor definition. */ -# include <linuxthreads/descr.h> - -# define NONTLS_INIT_TP \ - do { \ - static const tcbhead_t nontls_init_tp \ - = { .multiple_threads = 0 }; \ - INIT_THREAD_SELF (&nontls_init_tp, 0); \ - } while (0) - -# endif /* __ASSEMBLER__ */ - -#endif /* HAVE_TLS_SUPPORT && (FLOATING_STACKS || !IS_IN_libpthread) */ - -#endif /* tls.h */ diff --git a/libpthread/linuxthreads/sysdeps/unix/sysv/linux/s390/bits/typesizes.h b/libpthread/linuxthreads/sysdeps/unix/sysv/linux/s390/bits/typesizes.h deleted file mode 100644 index 6b588257d..000000000 --- a/libpthread/linuxthreads/sysdeps/unix/sysv/linux/s390/bits/typesizes.h +++ /dev/null @@ -1,71 +0,0 @@ -/* bits/typesizes.h -- underlying types for *_t. Linux/s390 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, see - <http://www.gnu.org/licenses/>. */ - -#ifndef _BITS_TYPES_H -# error "Never include <bits/typesizes.h> directly; use <sys/types.h> instead." -#endif - -#ifndef _BITS_TYPESIZES_H -#define _BITS_TYPESIZES_H 1 - -/* See <bits/types.h> for the meaning of these macros. This file exists so - that <bits/types.h> need not vary across different GNU platforms. */ - -#define __DEV_T_TYPE __UQUAD_TYPE -#define __UID_T_TYPE __U32_TYPE -#define __GID_T_TYPE __U32_TYPE -#define __INO_T_TYPE __ULONGWORD_TYPE -#define __INO64_T_TYPE __UQUAD_TYPE -#define __MODE_T_TYPE __U32_TYPE -#define __NLINK_T_TYPE __UWORD_TYPE -#define __OFF_T_TYPE __SLONGWORD_TYPE -#define __OFF64_T_TYPE __SQUAD_TYPE -#define __PID_T_TYPE __S32_TYPE -#define __RLIM_T_TYPE __ULONGWORD_TYPE -#define __RLIM64_T_TYPE __UQUAD_TYPE -#define __BLKCNT_T_TYPE __SLONGWORD_TYPE -#define __BLKCNT64_T_TYPE __SQUAD_TYPE -#define __FSBLKCNT_T_TYPE __ULONGWORD_TYPE -#define __FSBLKCNT64_T_TYPE __UQUAD_TYPE -#define __FSFILCNT_T_TYPE __ULONGWORD_TYPE -#define __FSFILCNT64_T_TYPE __UQUAD_TYPE -#define __ID_T_TYPE __U32_TYPE -#define __CLOCK_T_TYPE __SLONGWORD_TYPE -#define __TIME_T_TYPE __SLONGWORD_TYPE -#define __USECONDS_T_TYPE __U32_TYPE -#define __SUSECONDS_T_TYPE __SLONGWORD_TYPE -#define __DADDR_T_TYPE __S32_TYPE -#define __SWBLK_T_TYPE __SLONGWORD_TYPE -#define __KEY_T_TYPE __S32_TYPE -#define __CLOCKID_T_TYPE __S32_TYPE -#define __TIMER_T_TYPE __S32_TYPE -#define __BLKSIZE_T_TYPE __SLONGWORD_TYPE -#define __FSID_T_TYPE struct { int __val[2]; } -#if defined __GNUC__ && __GNUC__ <= 2 -/* Compatibility with g++ 2.95.x. */ -#define __SSIZE_T_TYPE __SWORD_TYPE -#else -/* size_t is unsigned long int on s390 -m31. */ -#define __SSIZE_T_TYPE __SLONGWORD_TYPE -#endif - -/* Number of descriptors that can fit in an `fd_set'. */ -#define __FD_SETSIZE 1024 - - -#endif /* bits/typesizes.h */ diff --git a/libpthread/linuxthreads/sysdeps/unix/sysv/linux/s390/s390-32/pt-initfini.c b/libpthread/linuxthreads/sysdeps/unix/sysv/linux/s390/s390-32/pt-initfini.c deleted file mode 100644 index cde418307..000000000 --- a/libpthread/linuxthreads/sysdeps/unix/sysv/linux/s390/s390-32/pt-initfini.c +++ /dev/null @@ -1,153 +0,0 @@ -/* Special .init and .fini section support for S/390. - Copyright (C) 2000, 2001 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. - - In addition to the permissions in the GNU Lesser General Public - License, the Free Software Foundation gives you unlimited - permission to link the compiled version of this file with other - programs, and to distribute those programs without any restriction - coming from the use of this file. (The Lesser General Public - License restrictions do apply in other respects; for example, they - cover modification of the file, and distribution when not linked - into another program.) - - 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/>. */ - -/* This file is compiled into assembly code which is then munged by a sed - script into two files: crti.s and crtn.s. - - * crti.s puts a function prologue at the beginning of the - .init and .fini sections and defines global symbols for - those addresses, so they can be called as functions. - - * crtn.s puts the corresponding function epilogues - in the .init and .fini sections. */ - -__asm__ ("\ -\n\ -#include \"defs.h\"\n\ -\n\ -/*@HEADER_ENDS*/\n\ -\n\ -/*@TESTS_BEGIN*/\n\ -\n\ -/*@TESTS_END*/\n\ -\n\ -/*@_init_PROLOG_BEGINS*/\n\ -\n\ - .section .init\n\ -#NO_APP\n\ - .align 4\n\ -.globl _init\n\ - .type _init,@function\n\ -_init:\n\ -# leaf function 0\n\ -# automatics 0\n\ -# outgoing args 0\n\ -# need frame pointer 0\n\ -# call alloca 0\n\ -# has varargs 0\n\ -# incoming args (stack) 0\n\ -# function length 36\n\ - STM 6,15,24(15)\n\ - BRAS 13,.LTN1_0\n\ -.LT1_0:\n\ -.LC13:\n\ - .long __pthread_initialize_minimal@PLT-.LT1_0\n\ -.LC14:\n\ - .long __gmon_start__@GOT\n\ -.LC15:\n\ - .long _GLOBAL_OFFSET_TABLE_-.LT1_0\n\ -.LTN1_0:\n\ - LR 1,15\n\ - AHI 15,-96\n\ - ST 1,0(15)\n\ - L 12,.LC15-.LT1_0(13)\n\ - AR 12,13\n\ - L 1,.LC13-.LT1_0(13)\n\ - LA 1,0(1,13)\n\ - BASR 14,1\n\ - L 1,.LC14-.LT1_0(13)\n\ - L 1,0(1,12)\n\ - LTR 1,1\n\ - JE .L22\n\ - BASR 14,1\n\ -.L22:\n\ -#APP\n\ - .align 4,0x07\n\ - END_INIT\n\ -\n\ -/*@_init_PROLOG_ENDS*/\n\ -\n\ -/*@_init_EPILOG_BEGINS*/\n\ - .align 4\n\ - .section .init\n\ -#NO_APP\n\ - .align 4\n\ - L 4,152(15)\n\ - LM 6,15,120(15)\n\ - BR 4\n\ -#APP\n\ - END_INIT\n\ -\n\ -/*@_init_EPILOG_ENDS*/\n\ -\n\ -/*@_fini_PROLOG_BEGINS*/\n\ - .section .fini\n\ -#NO_APP\n\ - .align 4\n\ -.globl _fini\n\ - .type _fini,@function\n\ -_fini:\n\ -# leaf function 0\n\ -# automatics 0\n\ -# outgoing args 0\n\ -# need frame pointer 0\n\ -# call alloca 0\n\ -# has varargs 0\n\ -# incoming args (stack) 0\n\ -# function length 30\n\ - STM 6,15,24(15)\n\ - BRAS 13,.LTN2_0\n\ -.LT2_0:\n\ -.LC17:\n\ - .long _GLOBAL_OFFSET_TABLE_-.LT2_0\n\ -.LTN2_0:\n\ - LR 1,15\n\ - AHI 15,-96\n\ - ST 1,0(15)\n\ - L 12,.LC17-.LT2_0(13)\n\ - AR 12,13\n\ -#APP\n\ - .align 4,0x07\n\ - END_FINI\n\ -\n\ -/*@_fini_PROLOG_ENDS*/\n\ -\n\ -/*@_fini_EPILOG_BEGINS*/\n\ - .align 4\n\ - .section .fini\n\ -#NO_APP\n\ - .align 4\n\ - L 4,152(15)\n\ - LM 6,15,120(15)\n\ - BR 4\n\ -#APP\n\ - END_FINI\n\ -\n\ -/*@_fini_EPILOG_ENDS*/\n\ -\n\ -/*@TRAILER_BEGINS*/\ -"); diff --git a/libpthread/linuxthreads/sysdeps/unix/sysv/linux/s390/s390-32/sysdep-cancel.h b/libpthread/linuxthreads/sysdeps/unix/sysv/linux/s390/s390-32/sysdep-cancel.h deleted file mode 100644 index 2431129e5..000000000 --- a/libpthread/linuxthreads/sysdeps/unix/sysv/linux/s390/s390-32/sysdep-cancel.h +++ /dev/null @@ -1,136 +0,0 @@ -/* Copyright (C) 2003, 2004 Free Software Foundation, Inc. - This file is part of the GNU C Library. - Contributed by Jakub Jelinek <jakub@redhat.com>, 2003. - - 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> -#include <tls.h> -#ifndef __ASSEMBLER__ -# include <linuxthreads/internals.h> -#endif - -#if !defined NOT_IN_libc || defined IS_IN_libpthread || defined IS_IN_librt - -# if !defined NOT_IN_libc || defined IS_IN_libpthread - -# define PSEUDO_CANCEL(name, syscall_name, args) \ -L(pseudo_cancel): \ - STM_##args \ - stm %r12,%r15,48(%r15); \ - lr %r14,%r15; \ - ahi %r15,-96; \ - st %r14,0(%r15); \ - basr %r13,0; \ -0: l %r1,1f-0b(%r13); \ - bas %r14,0(%r1,%r13); \ - lr %r0,%r2; \ - LM_##args \ - DO_CALL(syscall_name, args); \ - l %r1,2f-0b(%r13); \ - lr %r12,%r2; \ - lr %r2,%r0; \ - bas %r14,0(%r1,%r13); \ - lr %r2,%r12; \ - lm %r12,%r15,48+96(%r15); \ - j L(pseudo_check); \ -1: .long CENABLE-0b; \ -2: .long CDISABLE-0b; - -# else /* !libc.so && !libpthread.so */ - -# define PSEUDO_CANCEL(name, syscall_name, args) \ -L(pseudo_cancel): \ - STM_##args \ - stm %r11,%r15,44(%r15); \ - lr %r14,%r15; \ - ahi %r15,-96; \ - st %r14,0(%r15); \ - basr %r13,0; \ -0: l %r12,3f-0b(%r13); \ - l %r1,1f-0b(%r13); \ - la %r12,0(%r12,%r13); \ - bas %r14,0(%r1,%r13); \ - lr %r0,%r2; \ - LM_##args \ - DO_CALL(syscall_name, args); \ - l %r1,2f-0b(%r13); \ - lr %r11,%r2; \ - lr %r2,%r0; \ - bas %r14,0(%r1,%r13); \ - lr %r2,%r11; \ - lm %r11,%r15,44+96(%r15); \ - j L(pseudo_check); \ -1: .long CENABLE@PLT-0b; \ -2: .long CDISABLE@PLT-0b; \ -3: .long _GLOBAL_OFFSET_TABLE_-0b; - -# endif - -# undef PSEUDO -# define PSEUDO(name, syscall_name, args) \ - .text; \ -PSEUDO_CANCEL(name, syscall_name, args) \ -ENTRY(name) \ - SINGLE_THREAD_P(%r1) \ - jne L(pseudo_cancel); \ - DO_CALL(syscall_name, args); \ -L(pseudo_check): \ - lhi %r4,-4095; \ - clr %r2,%r4; \ - jnl SYSCALL_ERROR_LABEL; \ -L(pseudo_end): - -# ifdef IS_IN_libpthread -# define CENABLE __pthread_enable_asynccancel -# define CDISABLE __pthread_disable_asynccancel -# elif !defined NOT_IN_libc -# define CENABLE __libc_enable_asynccancel -# define CDISABLE __libc_disable_asynccancel -# else -# define CENABLE __librt_enable_asynccancel -# define CDISABLE __librt_disable_asynccancel -# endif - -#define STM_0 /* Nothing */ -#define STM_1 st %r2,8(%r15); -#define STM_2 stm %r2,%r3,8(%r15); -#define STM_3 stm %r2,%r4,8(%r15); -#define STM_4 stm %r2,%r5,8(%r15); -#define STM_5 stm %r2,%r5,8(%r15); - -#define LM_0 /* Nothing */ -#define LM_1 l %r2,8+96(%r15); -#define LM_2 lm %r2,%r3,8+96(%r15); -#define LM_3 lm %r2,%r4,8+96(%r15); -#define LM_4 lm %r2,%r5,8+96(%r15); -#define LM_5 lm %r2,%r5,8+96(%r15); - -# ifndef __ASSEMBLER__ -# define SINGLE_THREAD_P \ - __builtin_expect (THREAD_GETMEM (THREAD_SELF, \ - p_header.data.multiple_threads) == 0, 1) -# else -# define SINGLE_THREAD_P(reg) \ - ear reg,%a0; \ - icm reg,15,MULTIPLE_THREADS_OFFSET(reg); -# endif - -#elif !defined __ASSEMBLER__ - -/* This code should never be used but we define it anyhow. */ -# define SINGLE_THREAD_P (1) - -#endif diff --git a/libpthread/linuxthreads/sysdeps/unix/sysv/linux/s390/s390-32/vfork.S b/libpthread/linuxthreads/sysdeps/unix/sysv/linux/s390/s390-32/vfork.S deleted file mode 100644 index 078c730fd..000000000 --- a/libpthread/linuxthreads/sysdeps/unix/sysv/linux/s390/s390-32/vfork.S +++ /dev/null @@ -1,68 +0,0 @@ -/* Copyright (C) 2003 Free Software Foundation, Inc. - This file is part of the GNU C Library. - Contributed by Martin Schwidefsky <schwidefsky@de.ibm.com> - - 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-cancel.h> -#define _ERRNO_H 1 -#include <bits/errno.h> - -/* Clone the calling process, but without copying the whole address space. - The calling process is suspended until the new process exits or is - replaced by a call to `execve'. Return -1 for errors, 0 to the new process, - and the process ID of the new process to the old process. */ - -ENTRY (__vfork) - basr %r1,0 -0: -#ifdef SHARED - al %r1,4f-0b(%r1) - l %r1,0(%r1) - ltr %r1,%r1 -#else - icm %r1,15,4f-0b(%r1) -#endif - jne 1f - - /* Do vfork system call. */ - svc SYS_ify (vfork) - - /* Check for error. */ - lhi %r4,-4095 - clr %r2,%r4 - jnl SYSCALL_ERROR_LABEL - - /* Normal return. */ - br %r14 -1: - basr %r1,0 -2: - al %r1,3f-2b(%r1) - br %r1 -3: - .long HIDDEN_JUMPTARGET(fork)-2b -4: -#ifdef SHARED - .long __libc_pthread_functions-0b -#else - .weak pthread_create - .long pthread_create -#endif -PSEUDO_END(__vfork) - -libc_hidden_def (__vfork) - -weak_alias (__vfork, vfork) diff --git a/libpthread/linuxthreads/sysdeps/unix/sysv/linux/s390/s390-64/pt-initfini.c b/libpthread/linuxthreads/sysdeps/unix/sysv/linux/s390/s390-64/pt-initfini.c deleted file mode 100644 index 136ce5442..000000000 --- a/libpthread/linuxthreads/sysdeps/unix/sysv/linux/s390/s390-64/pt-initfini.c +++ /dev/null @@ -1,136 +0,0 @@ -/* Special .init and .fini section support for 64 bit S/390. - Copyright (C) 2001 Free Software Foundation, Inc. - Contributed by Martin Schwidefsky (schwidefsky@de.ibm.com). - 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. - - In addition to the permissions in the GNU Lesser General Public - License, the Free Software Foundation gives you unlimited - permission to link the compiled version of this file with other - programs, and to distribute those programs without any restriction - coming from the use of this file. (The Lesser General Public - License restrictions do apply in other respects; for example, they - cover modification of the file, and distribution when not linked - into another program.) - - 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/>. */ - -/* This file is compiled into assembly code which is then munged by a sed - script into two files: crti.s and crtn.s. - - * crti.s puts a function prologue at the beginning of the - .init and .fini sections and defines global symbols for - those addresses, so they can be called as functions. - - * crtn.s puts the corresponding function epilogues - in the .init and .fini sections. */ - -__asm__ ("\ -\n\ -#include \"defs.h\"\n\ -\n\ -/*@HEADER_ENDS*/\n\ -\n\ -/*@TESTS_BEGIN*/\n\ -\n\ -/*@TESTS_END*/\n\ -\n\ -/*@_init_PROLOG_BEGINS*/\n\ -\n\ - .section .init\n\ -#NO_APP\n\ - .align 4\n\ -.globl _init\n\ - .type _init,@function\n\ -_init:\n\ -# leaf function 0\n\ -# automatics 0\n\ -# outgoing args 0\n\ -# need frame pointer 0\n\ -# call alloca 0\n\ -# has varargs 0\n\ -# incoming args (stack) 0\n\ -# function length 36\n\ - STMG 6,15,48(15)\n\ - LGR 1,15\n\ - AGHI 15,-160\n\ - STG 1,0(15)\n\ - LARL 12,_GLOBAL_OFFSET_TABLE_\n\ - BRASL 14,__pthread_initialize_minimal@PLT\n\ - LARL 1,__gmon_start__@GOTENT\n\ - LG 1,0(1)\n\ - LTGR 1,1\n\ - JE .L22\n\ - BASR 14,1\n\ -.L22:\n\ -#APP\n\ - .align 4,0x07\n\ - END_INIT\n\ -\n\ -/*@_init_PROLOG_ENDS*/\n\ -\n\ -/*@_init_EPILOG_BEGINS*/\n\ - .align 4\n\ - .section .init\n\ -#NO_APP\n\ - .align 4\n\ - LG 4,272(15)\n\ - LMG 6,15,208(15)\n\ - BR 4\n\ -#APP\n\ - END_INIT\n\ -\n\ -/*@_init_EPILOG_ENDS*/\n\ -\n\ -/*@_fini_PROLOG_BEGINS*/\n\ - .section .fini\n\ -#NO_APP\n\ - .align 4\n\ -.globl _fini\n\ - .type _fini,@function\n\ -_fini:\n\ -# leaf function 0\n\ -# automatics 0\n\ -# outgoing args 0\n\ -# need frame pointer 0\n\ -# call alloca 0\n\ -# has varargs 0\n\ -# incoming args (stack) 0\n\ -# function length 30\n\ - STMG 6,15,48(15)\n\ - LGR 1,15\n\ - AGHI 15,-160\n\ - STG 1,0(15)\n\ - LARL 12,_GLOBAL_OFFSET_TABLE_\n\ -#APP\n\ - .align 4,0x07\n\ - END_FINI\n\ -\n\ -/*@_fini_PROLOG_ENDS*/\n\ -\n\ -/*@_fini_EPILOG_BEGINS*/\n\ - .align 4\n\ - .section .fini\n\ -#NO_APP\n\ - .align 4\n\ - LG 4,272(15)\n\ - LMG 6,15,208(15)\n\ - BR 4\n\ -#APP\n\ - END_FINI\n\ -\n\ -/*@_fini_EPILOG_ENDS*/\n\ -\n\ -/*@TRAILER_BEGINS*/\n\ - "); diff --git a/libpthread/linuxthreads/sysdeps/unix/sysv/linux/s390/s390-64/pt-sigsuspend.c b/libpthread/linuxthreads/sysdeps/unix/sysv/linux/s390/s390-64/pt-sigsuspend.c deleted file mode 100644 index d57283ad2..000000000 --- a/libpthread/linuxthreads/sysdeps/unix/sysv/linux/s390/s390-64/pt-sigsuspend.c +++ /dev/null @@ -1 +0,0 @@ -#include "../../ia64/pt-sigsuspend.c" diff --git a/libpthread/linuxthreads/sysdeps/unix/sysv/linux/s390/s390-64/sysdep-cancel.h b/libpthread/linuxthreads/sysdeps/unix/sysv/linux/s390/s390-64/sysdep-cancel.h deleted file mode 100644 index cf3124ebb..000000000 --- a/libpthread/linuxthreads/sysdeps/unix/sysv/linux/s390/s390-64/sysdep-cancel.h +++ /dev/null @@ -1,115 +0,0 @@ -/* Copyright (C) 2003, 2004 Free Software Foundation, Inc. - This file is part of the GNU C Library. - Contributed by Jakub Jelinek <jakub@redhat.com>, 2003. - - 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> -#include <tls.h> -#ifndef __ASSEMBLER__ -# include <linuxthreads/internals.h> -#endif - -#if !defined NOT_IN_libc || defined IS_IN_libpthread || defined IS_IN_librt - -# undef PSEUDO -# define PSEUDO(name, syscall_name, args) \ - .text; \ -L(pseudo_cancel): \ - STM_##args \ - stmg %r13,%r15,104(%r15); \ - lgr %r14,%r15; \ - aghi %r15,-160; \ - stg %r14,0(%r15); \ - brasl %r14,CENABLE; \ - lgr %r0,%r2; \ - LM_##args \ - DO_CALL(syscall_name, args); \ - lgr %r13,%r2; \ - lgr %r2,%r0; \ - brasl %r14,CDISABLE; \ - lgr %r2,%r13; \ - lmg %r13,%r15,104+160(%r15); \ - j L(pseudo_check); \ -ENTRY(name) \ - SINGLE_THREAD_P \ - jne L(pseudo_cancel); \ - DO_CALL(syscall_name, args); \ -L(pseudo_check): \ - lghi %r4,-4095; \ - clgr %r2,%r4; \ - jgnl SYSCALL_ERROR_LABEL; \ -L(pseudo_end): - -# ifdef IS_IN_libpthread -# define CENABLE __pthread_enable_asynccancel -# define CDISABLE __pthread_disable_asynccancel -# define __local_multiple_threads __pthread_multiple_threads -# elif !defined NOT_IN_libc -# define CENABLE __libc_enable_asynccancel -# define CDISABLE __libc_disable_asynccancel -# define __local_multiple_threads __libc_multiple_threads -# else -# define CENABLE __librt_enable_asynccancel@PLT -# define CDISABLE __librt_disable_asynccancel@PLT -# endif - -#define STM_0 /* Nothing */ -#define STM_1 stg %r2,16(%r15); -#define STM_2 stmg %r2,%r3,16(%r15); -#define STM_3 stmg %r2,%r4,16(%r15); -#define STM_4 stmg %r2,%r5,16(%r15); -#define STM_5 stmg %r2,%r5,16(%r15); - -#define LM_0 /* Nothing */ -#define LM_1 lg %r2,16+160(%r15); -#define LM_2 lmg %r2,%r3,16+160(%r15); -#define LM_3 lmg %r2,%r4,16+160(%r15); -#define LM_4 lmg %r2,%r5,16+160(%r15); -#define LM_5 lmg %r2,%r5,16+160(%r15); - -# if !defined NOT_IN_libc || defined IS_IN_libpthread -# ifndef __ASSEMBLER__ -extern int __local_multiple_threads attribute_hidden; -# define SINGLE_THREAD_P \ - __builtin_expect (__local_multiple_threads == 0, 1) -# else -# define SINGLE_THREAD_P \ - larl %r1,__local_multiple_threads; \ - icm %r0,15,0(%r1); -# endif - -# else - -# ifndef __ASSEMBLER__ -# define SINGLE_THREAD_P \ - __builtin_expect (THREAD_GETMEM (THREAD_SELF, \ - p_header.data.multiple_threads) == 0, 1) -# else -# define SINGLE_THREAD_P \ - ear %r1,%a0; \ - sllg %r1,%r1,32; \ - ear %r1,%a1; \ - icm %r1,15,MULTIPLE_THREADS_OFFSET(%r1); -# endif - -# endif - -#elif !defined __ASSEMBLER__ - -/* This code should never be used but we define it anyhow. */ -# define SINGLE_THREAD_P (1) - -#endif diff --git a/libpthread/linuxthreads/sysdeps/unix/sysv/linux/s390/s390-64/vfork.S b/libpthread/linuxthreads/sysdeps/unix/sysv/linux/s390/s390-64/vfork.S deleted file mode 100644 index 109d4f6dc..000000000 --- a/libpthread/linuxthreads/sysdeps/unix/sysv/linux/s390/s390-64/vfork.S +++ /dev/null @@ -1,53 +0,0 @@ -/* Copyright (C) 2003 Free Software Foundation, Inc. - This file is part of the GNU C Library. - Contributed by Martin Schwidefsky <schwidefsky@de.ibm.com> - - 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-cancel.h> -#define _ERRNO_H 1 -#include <bits/errno.h> - -/* Clone the calling process, but without copying the whole address space. - The calling process is suspended until the new process exits or is - replaced by a call to `execve'. Return -1 for errors, 0 to the new process, - and the process ID of the new process to the old process. */ - -ENTRY (__vfork) -#ifdef SHARED - larl %r1,__libc_pthread_functions - lg %r1,0(%r1) -#else - .weak pthread_create - larl %r1,pthread_create -#endif - ltgr %r1,%r1 - jgne HIDDEN_JUMPTARGET(fork) - - /* Do vfork system call. */ - svc SYS_ify (vfork) - - /* Check for error. */ - lghi %r4,-4095 - clgr %r2,%r4 - jgnl SYSCALL_ERROR_LABEL - - /* Normal return. */ - br %r14 -PSEUDO_END(__vfork) - -libc_hidden_def (__vfork) - -weak_alias (__vfork, vfork) diff --git a/libpthread/nptl/allocatestack.c b/libpthread/nptl/allocatestack.c index 3f0586d28..118820a9a 100644 --- a/libpthread/nptl/allocatestack.c +++ b/libpthread/nptl/allocatestack.c @@ -786,7 +786,7 @@ __reclaim_stacks (void) if (in_flight_stack != 0) { bool add_p = in_flight_stack & 1; - list_t *elem = (list_t *) (in_flight_stack & ~UINTMAX_C (1)); + list_t *elem = (list_t *)(uintptr_t)(in_flight_stack & ~UINTMAX_C (1)); if (add_p) { diff --git a/libpthread/nptl/forward.c b/libpthread/nptl/forward.c index 812908001..a5c97babd 100644 --- a/libpthread/nptl/forward.c +++ b/libpthread/nptl/forward.c @@ -160,5 +160,6 @@ FORWARD2(__pthread_unwind, /* We cannot call abort() here. */ INTERNAL_SYSCALL_DECL (err); INTERNAL_SYSCALL (kill, err, 1, SIGKILL); + __builtin_unreachable(); }) #undef return diff --git a/libpthread/nptl/pthread_attr_getstackaddr.c b/libpthread/nptl/pthread_attr_getstackaddr.c index 41a0202a0..272a4c0b9 100644 --- a/libpthread/nptl/pthread_attr_getstackaddr.c +++ b/libpthread/nptl/pthread_attr_getstackaddr.c @@ -39,6 +39,3 @@ __pthread_attr_getstackaddr ( return 0; } strong_alias (__pthread_attr_getstackaddr, pthread_attr_getstackaddr) - -link_warning (pthread_attr_getstackaddr, - "the use of `pthread_attr_getstackaddr' is deprecated, use `pthread_attr_getstack'") diff --git a/libpthread/nptl/pthread_attr_setstackaddr.c b/libpthread/nptl/pthread_attr_setstackaddr.c index 5425004fd..253e8f7bb 100644 --- a/libpthread/nptl/pthread_attr_setstackaddr.c +++ b/libpthread/nptl/pthread_attr_setstackaddr.c @@ -41,6 +41,3 @@ __pthread_attr_setstackaddr ( return 0; } strong_alias (__pthread_attr_setstackaddr, pthread_attr_setstackaddr) - -link_warning (pthread_attr_setstackaddr, - "the use of `pthread_attr_setstackaddr' is deprecated, use `pthread_attr_setstack'") diff --git a/libpthread/nptl/sysdeps/unix/sysv/linux/arc/Makefile.arch b/libpthread/nptl/sysdeps/unix/sysv/linux/arc/Makefile.arch index 8e3c7b0bc..3b9db6a61 100644 --- a/libpthread/nptl/sysdeps/unix/sysv/linux/arc/Makefile.arch +++ b/libpthread/nptl/sysdeps/unix/sysv/linux/arc/Makefile.arch @@ -5,7 +5,7 @@ # Licensed under the LGPL v2.1 or later, see the file COPYING.LIB in this tarball. # -libpthread_linux_arch_SSRC = pt-vfork.S +libpthread_linux_arch_SSRC = libpthread_linux_arch_CSRC = pthread_once.c lowlevellock.c \ pt-__syscall_rt_sigaction.c pt-__syscall_error.c diff --git a/libpthread/nptl/sysdeps/unix/sysv/linux/arc/pt-vfork.S b/libpthread/nptl/sysdeps/unix/sysv/linux/arc/pt-vfork.S deleted file mode 100644 index f222dca43..000000000 --- a/libpthread/nptl/sysdeps/unix/sysv/linux/arc/pt-vfork.S +++ /dev/null @@ -1,7 +0,0 @@ -/* - * Copyright (C) 2013 Synopsys, Inc. (www.synopsys.com) - * - * Licensed under the LGPL v2.1 or later, see the file COPYING.LIB in this tarball. - */ - -#include "vfork.S" diff --git a/libpthread/nptl/sysdeps/unix/sysv/linux/arm/Makefile.arch b/libpthread/nptl/sysdeps/unix/sysv/linux/arm/Makefile.arch index 0ea0b2931..5522ce349 100644 --- a/libpthread/nptl/sysdeps/unix/sysv/linux/arm/Makefile.arch +++ b/libpthread/nptl/sysdeps/unix/sysv/linux/arm/Makefile.arch @@ -5,7 +5,7 @@ # Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball. # -libpthread_linux_arch_SSRC = pt-vfork.S +libpthread_linux_arch_SSRC = libpthread_linux_arch_CSRC = pthread_once.c \ pt-__syscall_rt_sigaction.c pt-__syscall_error.c \ lowlevellock.c diff --git a/libpthread/nptl/sysdeps/unix/sysv/linux/arm/pt-vfork.S b/libpthread/nptl/sysdeps/unix/sysv/linux/arm/pt-vfork.S deleted file mode 100644 index df18f0304..000000000 --- a/libpthread/nptl/sysdeps/unix/sysv/linux/arm/pt-vfork.S +++ /dev/null @@ -1,37 +0,0 @@ -/* Copyright (C) 2005 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 <tcb-offsets.h> - -/* Save the PID value. */ -#define SAVE_PID \ - str lr, [sp, #-4]!; /* Save LR. */ \ - mov r0, #0xffff0fff; /* Point to the high page. */ \ - mov lr, pc; /* Save our return address. */ \ - sub pc, r0, #31; /* Jump to the TLS entry. */ \ - ldr lr, [sp], #4; /* Restore LR. */ \ - mov r2, r0; /* Save the TLS addr in r2. */ \ - ldr r3, [r2, #PID_OFFSET]; /* Load the saved PID. */ \ - rsb r0, r3, #0; /* Negate it. */ \ - str r0, [r2, #PID_OFFSET] /* Store the temporary PID. */ - -/* Restore the old PID value in the parent. */ -#define RESTORE_PID \ - cmp r0, #0; /* If we are the parent... */ \ - strne r3, [r2, #PID_OFFSET] /* ... restore the saved PID. */ - -#include "../../../../../../../libc/sysdeps/linux/arm/vfork.S" diff --git a/libpthread/nptl/sysdeps/unix/sysv/linux/i386/Makefile.arch b/libpthread/nptl/sysdeps/unix/sysv/linux/i386/Makefile.arch index fff0dae89..9dc878c4c 100644 --- a/libpthread/nptl/sysdeps/unix/sysv/linux/i386/Makefile.arch +++ b/libpthread/nptl/sysdeps/unix/sysv/linux/i386/Makefile.arch @@ -5,7 +5,7 @@ # Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball. # -libpthread_linux_arch_SSRC = pt-vfork.S clone.S pthread_spin_unlock.S pthread_once.S +libpthread_linux_arch_SSRC = clone.S pthread_spin_unlock.S pthread_once.S libpthread_linux_arch_CSRC = pthread_spin_init.c pt-__syscall_error.c libc_linux_arch_CSRC = fork.c diff --git a/libpthread/nptl/sysdeps/unix/sysv/linux/i386/pt-vfork.S b/libpthread/nptl/sysdeps/unix/sysv/linux/i386/pt-vfork.S deleted file mode 100644 index 5bba782df..000000000 --- a/libpthread/nptl/sysdeps/unix/sysv/linux/i386/pt-vfork.S +++ /dev/null @@ -1,67 +0,0 @@ -/* Copyright (C) 1999, 2002, 2004 Free Software Foundation, Inc. - This file is part of the GNU C Library. - Contributed by Andreas Schwab <schwab@gnu.org>. - - 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> -#define _ERRNO_H 1 -#include <bits/errno.h> -#include <bits/kernel-features.h> -#include <tcb-offsets.h> - -/* Save the PID value. */ -#define SAVE_PID \ - movl %gs:PID, %edx; \ - movl %edx, %eax; \ - negl %eax; \ - movl %eax, %gs:PID - -/* Restore the old PID value in the parent. */ -#define RESTORE_PID \ - testl %eax, %eax; \ - je 1f; \ - movl %edx, %gs:PID; \ -1: - -/* Clone the calling process, but without copying the whole address space. - The calling process is suspended until the new process exits or is - replaced by a call to `execve'. Return -1 for errors, 0 to the new process, - and the process ID of the new process to the old process. */ - -ENTRY (__vfork) - /* Pop the return PC value into ECX. */ - popl %ecx - - SAVE_PID - - /* Stuff the syscall number in EAX and enter into the kernel. */ - movl $SYS_ify (vfork), %eax - int $0x80 - - RESTORE_PID - - /* Jump to the return PC. Don't jump directly since this - disturbs the branch target cache. Instead push the return - address back on the stack. */ - pushl %ecx - - cmpl $-4095, %eax - jae SYSCALL_ERROR_LABEL /* Branch forward if it failed. */ -L(pseudo_end): - ret -PSEUDO_END (__vfork) - -weak_alias (__vfork, vfork) diff --git a/libpthread/nptl/sysdeps/unix/sysv/linux/lowlevellock.c b/libpthread/nptl/sysdeps/unix/sysv/linux/lowlevellock.c index 2a5bf6dd9..75369bd70 100644 --- a/libpthread/nptl/sysdeps/unix/sysv/linux/lowlevellock.c +++ b/libpthread/nptl/sysdeps/unix/sysv/linux/lowlevellock.c @@ -22,8 +22,6 @@ #include <lowlevellock.h> #include <sys/time.h> #include <tls.h> -#include <tcb-offsets.h> - void #ifndef IS_IN_libpthread diff --git a/libpthread/nptl/sysdeps/unix/sysv/linux/metag/Makefile.arch b/libpthread/nptl/sysdeps/unix/sysv/linux/metag/Makefile.arch index 4d02d0c9a..ddc768085 100644 --- a/libpthread/nptl/sysdeps/unix/sysv/linux/metag/Makefile.arch +++ b/libpthread/nptl/sysdeps/unix/sysv/linux/metag/Makefile.arch @@ -5,7 +5,7 @@ # Licensed under the LGPL v2.1 or later, see the file COPYING.LIB in this tarball. # -libpthread_linux_arch_SSRC = pt-vfork.S +libpthread_linux_arch_SSRC = libpthread_linux_arch_CSRC = pthread_once.c \ pt-__syscall_rt_sigaction.c pt-__syscall_error.c \ lowlevellock.c diff --git a/libpthread/nptl/sysdeps/unix/sysv/linux/mips/Makefile.arch b/libpthread/nptl/sysdeps/unix/sysv/linux/mips/Makefile.arch index 4a3d0f248..f87dedca4 100644 --- a/libpthread/nptl/sysdeps/unix/sysv/linux/mips/Makefile.arch +++ b/libpthread/nptl/sysdeps/unix/sysv/linux/mips/Makefile.arch @@ -5,7 +5,7 @@ # Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball. # -libpthread_linux_arch_SSRC = pt-vfork.S clone.S +libpthread_linux_arch_SSRC = clone.S libpthread_linux_arch_CSRC = pthread_once.c pt-__syscall_rt_sigaction.c libc_linux_arch_CSRC = fork.c diff --git a/libpthread/nptl/sysdeps/unix/sysv/linux/mips/pt-vfork.S b/libpthread/nptl/sysdeps/unix/sysv/linux/mips/pt-vfork.S deleted file mode 100644 index 52fbde337..000000000 --- a/libpthread/nptl/sysdeps/unix/sysv/linux/mips/pt-vfork.S +++ /dev/null @@ -1,37 +0,0 @@ -/* Copyright (C) 2005 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 <features.h> -#include <tls.h> - -/* Save the PID value. */ -#define SAVE_PID \ - READ_THREAD_POINTER(v1); /* Get the thread pointer. */ \ - lw a2, PID_OFFSET(v1); /* Load the saved PID. */ \ - subu a2, $0, a2; /* Negate it. */ \ - sw a2, PID_OFFSET(v1); /* Store the temporary PID. */ - -/* Restore the old PID value in the parent. */ -#define RESTORE_PID \ - beqz v0, 1f; /* If we are the parent... */ \ - READ_THREAD_POINTER(v1); /* Get the thread pointer. */ \ - lw a2, PID_OFFSET(v1); /* Load the saved PID. */ \ - subu a2, $0, a2; /* Re-negate it. */ \ - sw a2, PID_OFFSET(v1); /* Restore the PID. */ \ -1: - -#include <../../../../../../../libc/sysdeps/linux/mips/vfork.S> diff --git a/libpthread/nptl/sysdeps/unix/sysv/linux/powerpc/Makefile.arch b/libpthread/nptl/sysdeps/unix/sysv/linux/powerpc/Makefile.arch index 21b9b7239..df4bb6963 100644 --- a/libpthread/nptl/sysdeps/unix/sysv/linux/powerpc/Makefile.arch +++ b/libpthread/nptl/sysdeps/unix/sysv/linux/powerpc/Makefile.arch @@ -5,7 +5,7 @@ # Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball. # -libpthread_linux_arch_SSRC = pt-vfork.S +libpthread_linux_arch_SSRC = libpthread_linux_arch_CSRC = pthread_once.c pt-__syscall_error.c libc_linux_arch_CSRC = fork.c diff --git a/libpthread/nptl/sysdeps/unix/sysv/linux/powerpc/powerpc32/pt-vfork.S b/libpthread/nptl/sysdeps/unix/sysv/linux/powerpc/powerpc32/pt-vfork.S deleted file mode 100644 index 2f82504a2..000000000 --- a/libpthread/nptl/sysdeps/unix/sysv/linux/powerpc/powerpc32/pt-vfork.S +++ /dev/null @@ -1,48 +0,0 @@ -/* Copyright (C) 2004 Free Software Foundation, Inc. - This file is part of the GNU C Library. - Contributed by Jakub Jelinek <jakub@redhat.com>, 2004. - - 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> -#define _ERRNO_H 1 -#include <bits/errno.h> -#include <bits/kernel-features.h> -#include <tcb-offsets.h> - -/* Clone the calling process, but without copying the whole address space. - The calling process is suspended until the new process exits or is - replaced by a call to `execve'. Return -1 for errors, 0 to the new process, - and the process ID of the new process to the old process. */ - -ENTRY (__vfork) - lwz 0,PID(2) - neg 0,0 - stw 0,PID(2) - - DO_CALL (SYS_ify (vfork)) - - cmpwi 1,3,0 - beqlr- 1 - - lwz 0,PID(2) - neg 0,0 - stw 0,PID(2) - - PSEUDO_RET - -PSEUDO_END (__vfork) - -weak_alias (__vfork, vfork) diff --git a/libpthread/nptl/sysdeps/unix/sysv/linux/powerpc/powerpc64/pt-vfork.S b/libpthread/nptl/sysdeps/unix/sysv/linux/powerpc/powerpc64/pt-vfork.S deleted file mode 100644 index 12e47b39c..000000000 --- a/libpthread/nptl/sysdeps/unix/sysv/linux/powerpc/powerpc64/pt-vfork.S +++ /dev/null @@ -1,48 +0,0 @@ -/* Copyright (C) 2004 Free Software Foundation, Inc. - This file is part of the GNU C Library. - Contributed by Jakub Jelinek <jakub@redhat.com>, 2004. - - 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> -#define _ERRNO_H 1 -#include <bits/errno.h> -#include <bits/kernel-features.h> -#include <tcb-offsets.h> - -/* Clone the calling process, but without copying the whole address space. - The calling process is suspended until the new process exits or is - replaced by a call to `execve'. Return -1 for errors, 0 to the new process, - and the process ID of the new process to the old process. */ - -ENTRY (__vfork) - lwz 0,PID(13) - neg 0,0 - stw 0,PID(13) - - DO_CALL (SYS_ify (vfork)) - - cmpwi 1,3,0 - beqlr- 1 - - lwz 0,PID(13) - neg 0,0 - stw 0,PID(13) - - PSEUDO_RET - -PSEUDO_END (__vfork) - -weak_alias (__vfork, vfork) diff --git a/libpthread/nptl/sysdeps/unix/sysv/linux/powerpc/pt-vfork.S b/libpthread/nptl/sysdeps/unix/sysv/linux/powerpc/pt-vfork.S deleted file mode 100644 index 0225219d9..000000000 --- a/libpthread/nptl/sysdeps/unix/sysv/linux/powerpc/pt-vfork.S +++ /dev/null @@ -1,5 +0,0 @@ -#if defined __powerpc64__ -# include "powerpc64/pt-vfork.S" -#else -# include "powerpc32/pt-vfork.S" -#endif diff --git a/libpthread/nptl/sysdeps/unix/sysv/linux/sh/Makefile.arch b/libpthread/nptl/sysdeps/unix/sysv/linux/sh/Makefile.arch index 154dd6e66..908d9e15d 100644 --- a/libpthread/nptl/sysdeps/unix/sysv/linux/sh/Makefile.arch +++ b/libpthread/nptl/sysdeps/unix/sysv/linux/sh/Makefile.arch @@ -5,7 +5,7 @@ # Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball. # -libpthread_linux_arch_SSRC = pt-vfork.S pthread_once.S pthread_rwlock_wrlock.S \ +libpthread_linux_arch_SSRC = pthread_once.S pthread_rwlock_wrlock.S \ pthread_rwlock_rdlock.S pthread_rwlock_unlock.S \ lowlevellock.S lowlevelrobustlock.S pthread_barrier_wait.S \ pthread_cond_broadcast.S pthread_cond_signal.S \ diff --git a/libpthread/nptl/sysdeps/unix/sysv/linux/sh/pt-vfork.S b/libpthread/nptl/sysdeps/unix/sysv/linux/sh/pt-vfork.S deleted file mode 100644 index 56aa6d0af..000000000 --- a/libpthread/nptl/sysdeps/unix/sysv/linux/sh/pt-vfork.S +++ /dev/null @@ -1,64 +0,0 @@ -/* Copyright (C) 2003, 2004 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> -#define _ERRNO_H 1 -#include <bits/errno.h> -#include <tcb-offsets.h> - -/* Clone the calling process, but without copying the whole address space. - The calling process is suspended until the new process exits or is - replaced by a call to `execve'. Return -1 for errors, 0 to the new process, - and the process ID of the new process to the old process. */ - -ENTRY (__vfork) - /* Save the PID value. */ - stc gbr, r2 - mov.w .L2, r0 - mov.l @(r0,r2), r4 - neg r4, r1 - mov.l r1, @(r0,r2) - - mov.w .L1, r3 - trapa #0x10 - mov r0, r1 - - /* Restore the old PID value in the parent. */ - tst r0, r0 - bt/s 2f - stc gbr, r2 - mov.w .L2, r0 - mov.l r4, @(r0,r2) - mov r1, r0 -2: - mov #-12, r2 - shad r2, r1 - not r1, r1 // r1=0 means r0 = -1 to -4095 - tst r1, r1 // i.e. error in linux - bf .Lpseudo_end - SYSCALL_ERROR_HANDLER -.Lpseudo_end: - rts - nop -.L1: - .word __NR_vfork -.L2: - .word PID - TLS_PRE_TCB_SIZE - -PSEUDO_END (__vfork) - -weak_alias (__vfork, vfork) diff --git a/libpthread/nptl/sysdeps/unix/sysv/linux/sparc/Makefile.arch b/libpthread/nptl/sysdeps/unix/sysv/linux/sparc/Makefile.arch index 2b2b5f579..01a9e879a 100644 --- a/libpthread/nptl/sysdeps/unix/sysv/linux/sparc/Makefile.arch +++ b/libpthread/nptl/sysdeps/unix/sysv/linux/sparc/Makefile.arch @@ -5,7 +5,7 @@ # Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball. # -libpthread_linux_arch_SSRC = pt-vfork.S clone.S +libpthread_linux_arch_SSRC = clone.S libpthread_linux_arch_CSRC = pthread_once.c lowlevellock.c \ pthread_barrier_init.c pthread_barrier_wait.c pthread_barrier_destroy.c \ pt-__syscall_error.c diff --git a/libpthread/nptl/sysdeps/unix/sysv/linux/x86_64/Makefile.arch b/libpthread/nptl/sysdeps/unix/sysv/linux/x86_64/Makefile.arch index ebd506047..af1416485 100644 --- a/libpthread/nptl/sysdeps/unix/sysv/linux/x86_64/Makefile.arch +++ b/libpthread/nptl/sysdeps/unix/sysv/linux/x86_64/Makefile.arch @@ -5,7 +5,7 @@ # Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball. # -libpthread_linux_arch_SSRC = pt-vfork.S clone.S pthread_once.S \ +libpthread_linux_arch_SSRC = clone.S pthread_once.S \ lowlevellock.S pthread_barrier_wait.S pthread_cond_signal.S pthread_cond_broadcast.S \ sem_post.S sem_timedwait.S lowlevelrobustlock.S \ sem_trywait.S sem_wait.S pthread_rwlock_rdlock.S pthread_rwlock_wrlock.S \ diff --git a/libpthread/nptl/sysdeps/unix/sysv/linux/xtensa/Makefile.arch b/libpthread/nptl/sysdeps/unix/sysv/linux/xtensa/Makefile.arch new file mode 100644 index 000000000..8ebe28773 --- /dev/null +++ b/libpthread/nptl/sysdeps/unix/sysv/linux/xtensa/Makefile.arch @@ -0,0 +1,15 @@ +# uClibc-ng project +# Licensed under the LGPL v2.1, see the file COPYING and LICENSE. + +libc_linux_arch_CSRC = fork.c +libc_linux_arch_SSRC = clone.S vfork.S +libpthread_linux_arch_CSRC = pthread_once.c +libpthread_linux_arch_SSRC = + +CFLAGS-OMIT-fork.c = -DNOT_IN_libc -DIS_IN_libpthread +ASFLAGS-pt-vfork.S = -DNOT_IN_libc -DIS_IN_libpthread -D_LIBC_REENTRANT + +ASFLAGS-clone.S = -D_LIBC_REENTRANT +ASFLAGS-vfork.S = -D_LIBC_REENTRANT +ASFLAGS-syscall.S = -D_LIBC_REENTRANT +ASFLAGS-mmap.S = -D_LIBC_REENTRANT diff --git a/libpthread/nptl/sysdeps/unix/sysv/linux/xtensa/bits/pthreadtypes.h b/libpthread/nptl/sysdeps/unix/sysv/linux/xtensa/bits/pthreadtypes.h new file mode 100644 index 000000000..5e4402088 --- /dev/null +++ b/libpthread/nptl/sysdeps/unix/sysv/linux/xtensa/bits/pthreadtypes.h @@ -0,0 +1,184 @@ +/* Copyright (C) 2002-2012 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/>. */ + +#ifndef _BITS_PTHREADTYPES_H +#define _BITS_PTHREADTYPES_H 1 + +#include <endian.h> + +#define __SIZEOF_PTHREAD_ATTR_T 36 +#define __SIZEOF_PTHREAD_MUTEX_T 24 +#define __SIZEOF_PTHREAD_MUTEXATTR_T 4 +#define __SIZEOF_PTHREAD_COND_T 48 +#define __SIZEOF_PTHREAD_COND_COMPAT_T 12 +#define __SIZEOF_PTHREAD_CONDATTR_T 4 +#define __SIZEOF_PTHREAD_RWLOCK_T 32 +#define __SIZEOF_PTHREAD_RWLOCKATTR_T 8 +#define __SIZEOF_PTHREAD_BARRIER_T 20 +#define __SIZEOF_PTHREAD_BARRIERATTR_T 4 + + +/* Thread identifiers. The structure of the attribute type is not + exposed on purpose. */ +typedef unsigned long int pthread_t; + + +union pthread_attr_t +{ + char __size[__SIZEOF_PTHREAD_ATTR_T]; + long int __align; +}; +#ifndef __have_pthread_attr_t +typedef union pthread_attr_t pthread_attr_t; +# define __have_pthread_attr_t 1 +#endif + + +typedef struct __pthread_internal_slist +{ + struct __pthread_internal_slist *__next; +} __pthread_slist_t; + + +/* Data structures for mutex handling. The structure of the attribute + type is not exposed on purpose. */ +typedef union +{ + struct __pthread_mutex_s + { + int __lock; + unsigned int __count; + int __owner; + /* KIND must stay at this position in the structure to maintain + binary compatibility. */ + int __kind; + unsigned int __nusers; + __extension__ union + { + int __spins; + __pthread_slist_t __list; + }; + } __data; + char __size[__SIZEOF_PTHREAD_MUTEX_T]; + long int __align; +} pthread_mutex_t; + +typedef union +{ + char __size[__SIZEOF_PTHREAD_MUTEXATTR_T]; + long int __align; +} pthread_mutexattr_t; + + +/* Data structure for conditional variable handling. The structure of + the attribute type is not exposed on purpose. */ +typedef union +{ + struct + { + int __lock; + unsigned int __futex; + __extension__ unsigned long long int __total_seq; + __extension__ unsigned long long int __wakeup_seq; + __extension__ unsigned long long int __woken_seq; + void *__mutex; + unsigned int __nwaiters; + unsigned int __broadcast_seq; + } __data; + char __size[__SIZEOF_PTHREAD_COND_T]; + __extension__ long long int __align; +} pthread_cond_t; + +typedef union +{ + char __size[__SIZEOF_PTHREAD_CONDATTR_T]; + long int __align; +} pthread_condattr_t; + + +/* Keys for thread-specific data */ +typedef unsigned int pthread_key_t; + + +/* Once-only execution */ +typedef int pthread_once_t; + + +#if defined __USE_UNIX98 || defined __USE_XOPEN2K +/* Data structure for read-write lock variable handling. The + structure of the attribute type is not exposed on purpose. */ +typedef union +{ + struct + { + int __lock; + unsigned int __nr_readers; + unsigned int __readers_wakeup; + unsigned int __writer_wakeup; + unsigned int __nr_readers_queued; + unsigned int __nr_writers_queued; +#if __BYTE_ORDER == __BIG_ENDIAN + unsigned char __pad1; + unsigned char __pad2; + unsigned char __shared; + /* FLAGS must stay at this position in the structure to maintain + binary compatibility. */ + unsigned char __flags; +#else + /* FLAGS must stay at this position in the structure to maintain + binary compatibility. */ + unsigned char __flags; + unsigned char __shared; + unsigned char __pad1; + unsigned char __pad2; +#endif + int __writer; + } __data; + char __size[__SIZEOF_PTHREAD_RWLOCK_T]; + long int __align; +} pthread_rwlock_t; + +typedef union +{ + char __size[__SIZEOF_PTHREAD_RWLOCKATTR_T]; + long int __align; +} pthread_rwlockattr_t; +#endif + + +#ifdef __USE_XOPEN2K +/* POSIX spinlock data type. */ +typedef volatile int pthread_spinlock_t; + + +/* POSIX barriers data type. The structure of the type is + deliberately not exposed. */ +typedef union +{ + char __size[__SIZEOF_PTHREAD_BARRIER_T]; + long int __align; +} pthread_barrier_t; + +typedef union +{ + char __size[__SIZEOF_PTHREAD_BARRIERATTR_T]; + int __align; +} pthread_barrierattr_t; +#endif + + +#endif /* bits/pthreadtypes.h */ diff --git a/libpthread/nptl/sysdeps/unix/sysv/linux/xtensa/bits/semaphore.h b/libpthread/nptl/sysdeps/unix/sysv/linux/xtensa/bits/semaphore.h new file mode 100644 index 000000000..8845cf009 --- /dev/null +++ b/libpthread/nptl/sysdeps/unix/sysv/linux/xtensa/bits/semaphore.h @@ -0,0 +1,35 @@ +/* Copyright (C) 2012 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 _SEMAPHORE_H +# error "Never use <bits/semaphore.h> directly; include <semaphore.h> instead." +#endif + + +#define __SIZEOF_SEM_T 16 + + +/* Value returned if `sem_open' failed. */ +#define SEM_FAILED ((sem_t *) 0) + + +typedef union +{ + char __size[__SIZEOF_SEM_T]; + long int __align; +} sem_t; diff --git a/libpthread/nptl/sysdeps/unix/sysv/linux/xtensa/clone.S b/libpthread/nptl/sysdeps/unix/sysv/linux/xtensa/clone.S new file mode 100644 index 000000000..539b9ef38 --- /dev/null +++ b/libpthread/nptl/sysdeps/unix/sysv/linux/xtensa/clone.S @@ -0,0 +1,3 @@ +#define RESET_PID +#include <tcb-offsets.h> +#include <libc/sysdeps/linux/xtensa/clone.S> diff --git a/libpthread/nptl/sysdeps/unix/sysv/linux/xtensa/createthread.c b/libpthread/nptl/sysdeps/unix/sysv/linux/xtensa/createthread.c new file mode 100644 index 000000000..2bb96e91a --- /dev/null +++ b/libpthread/nptl/sysdeps/unix/sysv/linux/xtensa/createthread.c @@ -0,0 +1,24 @@ +/* Copyright (C) 2012 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. */ + +/* Value passed to 'clone' for initialization of the thread register. */ +#define TLS_VALUE (pd + 1) + + +/* Get the real implementation. */ +#include <sysdeps/pthread/createthread.c> diff --git a/libpthread/nptl/sysdeps/unix/sysv/linux/x86_64/pt-vfork.S b/libpthread/nptl/sysdeps/unix/sysv/linux/xtensa/fork.c index 08a085ce4..ba5c700da 100644 --- a/libpthread/nptl/sysdeps/unix/sysv/linux/x86_64/pt-vfork.S +++ b/libpthread/nptl/sysdeps/unix/sysv/linux/xtensa/fork.c @@ -1,4 +1,4 @@ -/* Copyright (C) 2004 Free Software Foundation, Inc. +/* Copyright (C) 2013 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 @@ -15,18 +15,15 @@ License along with the GNU C Library; if not, see <http://www.gnu.org/licenses/>. */ -#include <tcb-offsets.h> +#include <sched.h> +#include <signal.h> +#include <sysdep.h> +#include <tls.h> -#define SAVE_PID \ - movl %fs:PID, %esi; \ - movl %esi, %edx; \ - negl %edx; \ - movl %edx, %fs:PID -#define RESTORE_PID \ - testq %rax, %rax; \ - je 1f; \ - movl %esi, %fs:PID; \ -1: +#define ARCH_FORK() \ + INLINE_SYSCALL (clone, 5, \ + CLONE_CHILD_SETTID | CLONE_CHILD_CLEARTID | SIGCHLD, 0, \ + NULL, NULL, &THREAD_SELF->tid) -#include <../../../../../../../libc/sysdeps/linux/x86_64/vfork.S> +#include "../fork.c" diff --git a/libpthread/nptl/sysdeps/unix/sysv/linux/xtensa/lowlevellock.c b/libpthread/nptl/sysdeps/unix/sysv/linux/xtensa/lowlevellock.c new file mode 100644 index 000000000..756f39fd4 --- /dev/null +++ b/libpthread/nptl/sysdeps/unix/sysv/linux/xtensa/lowlevellock.c @@ -0,0 +1,132 @@ +/* low level locking for pthread library. Generic futex-using version. + Copyright (C) 2003-2013 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 <errno.h> +#include <sysdep.h> +#include <lowlevellock.h> +#include <sys/time.h> + +void +__lll_lock_wait_private (int *futex) +{ + do + { + int oldval = atomic_compare_and_exchange_val_acq (futex, 2, 1); + if (oldval != 0) + lll_futex_wait (futex, 2, LLL_PRIVATE); + } + while (atomic_compare_and_exchange_bool_acq (futex, 2, 0) != 0); +} + + +/* These functions don't get included in libc.so */ +#ifdef IS_IN_libpthread +void +__lll_lock_wait (int *futex, int private) +{ + do + { + int oldval = atomic_compare_and_exchange_val_acq (futex, 2, 1); + if (oldval != 0) + lll_futex_wait (futex, 2, private); + } + while (atomic_compare_and_exchange_bool_acq (futex, 2, 0) != 0); +} + + +int +__lll_timedlock_wait (int *futex, const struct timespec *abstime, int private) +{ + struct timespec rt; + + /* Reject invalid timeouts. */ + if (abstime->tv_nsec < 0 || abstime->tv_nsec >= 1000000000) + return EINVAL; + + /* Upgrade the lock. */ + if (atomic_exchange_acq (futex, 2) == 0) + return 0; + + do + { + struct timeval tv; + + /* Get the current time. */ + (void) __gettimeofday (&tv, NULL); + + /* Compute relative timeout. */ + rt.tv_sec = abstime->tv_sec - tv.tv_sec; + rt.tv_nsec = abstime->tv_nsec - tv.tv_usec * 1000; + if (rt.tv_nsec < 0) + { + rt.tv_nsec += 1000000000; + --rt.tv_sec; + } + + /* Already timed out? */ + if (rt.tv_sec < 0) + return ETIMEDOUT; + + // XYZ: Lost the lock to check whether it was private. + lll_futex_timed_wait (futex, 2, &rt, private); + } + while (atomic_compare_and_exchange_bool_acq (futex, 2, 0) != 0); + + return 0; +} + + +int +__lll_timedwait_tid (int *tidp, const struct timespec *abstime) +{ + int tid; + + if (abstime->tv_nsec < 0 || abstime->tv_nsec >= 1000000000) + return EINVAL; + + /* Repeat until thread terminated. */ + while ((tid = *tidp) != 0) + { + struct timeval tv; + struct timespec rt; + + /* Get the current time. */ + (void) __gettimeofday (&tv, NULL); + + /* Compute relative timeout. */ + rt.tv_sec = abstime->tv_sec - tv.tv_sec; + rt.tv_nsec = abstime->tv_nsec - tv.tv_usec * 1000; + if (rt.tv_nsec < 0) + { + rt.tv_nsec += 1000000000; + --rt.tv_sec; + } + + /* Already timed out? */ + if (rt.tv_sec < 0) + return ETIMEDOUT; + + /* Wait until thread terminates. */ + // XYZ: Lost the lock to check whether it was private. + if (lll_futex_timed_wait (tidp, tid, &rt, LLL_SHARED) == -ETIMEDOUT) + return ETIMEDOUT; + } + + return 0; +} +#endif diff --git a/libpthread/nptl/sysdeps/unix/sysv/linux/xtensa/lowlevellock.h b/libpthread/nptl/sysdeps/unix/sysv/linux/xtensa/lowlevellock.h new file mode 100644 index 000000000..abe6e9c37 --- /dev/null +++ b/libpthread/nptl/sysdeps/unix/sysv/linux/xtensa/lowlevellock.h @@ -0,0 +1,293 @@ +/* Copyright (C) 2005-2013 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/>. */ + +#ifndef _LOWLEVELLOCK_H +#define _LOWLEVELLOCK_H 1 + +#include <time.h> +#include <sys/param.h> +#include <bits/pthreadtypes.h> +#include <atomic.h> +#include <sysdep.h> +#include <bits/kernel-features.h> + +#define FUTEX_WAIT 0 +#define FUTEX_WAKE 1 +#define FUTEX_REQUEUE 3 +#define FUTEX_CMP_REQUEUE 4 +#define FUTEX_WAKE_OP 5 +#define FUTEX_OP_CLEAR_WAKE_IF_GT_ONE ((4 << 24) | 1) +#define FUTEX_LOCK_PI 6 +#define FUTEX_UNLOCK_PI 7 +#define FUTEX_TRYLOCK_PI 8 +#define FUTEX_WAIT_BITSET 9 +#define FUTEX_WAKE_BITSET 10 +#define FUTEX_PRIVATE_FLAG 128 +#define FUTEX_CLOCK_REALTIME 256 + +#define FUTEX_BITSET_MATCH_ANY 0xffffffff + +/* Values for 'private' parameter of locking macros. Yes, the + definition seems to be backwards. But it is not. The bit will be + reversed before passing to the system call. */ +#define LLL_PRIVATE 0 +#define LLL_SHARED FUTEX_PRIVATE_FLAG + + +#if !defined NOT_IN_libc || defined IS_IN_rtld +/* In libc.so or ld.so all futexes are private. */ +# ifdef __ASSUME_PRIVATE_FUTEX +# define __lll_private_flag(fl, private) \ + ((fl) | FUTEX_PRIVATE_FLAG) +# else +# define __lll_private_flag(fl, private) \ + ((fl) | THREAD_GETMEM (THREAD_SELF, header.private_futex)) +# endif +#else +# ifdef __ASSUME_PRIVATE_FUTEX +# define __lll_private_flag(fl, private) \ + (((fl) | FUTEX_PRIVATE_FLAG) ^ (private)) +# else +# define __lll_private_flag(fl, private) \ + (__builtin_constant_p (private) \ + ? ((private) == 0 \ + ? ((fl) | THREAD_GETMEM (THREAD_SELF, header.private_futex)) \ + : (fl)) \ + : ((fl) | (((private) ^ FUTEX_PRIVATE_FLAG) \ + & THREAD_GETMEM (THREAD_SELF, header.private_futex)))) +# endif +#endif + + +#define lll_futex_wait(futexp, val, private) \ + lll_futex_timed_wait(futexp, val, NULL, private) + +#define lll_futex_timed_wait(futexp, val, timespec, private) \ + ({ \ + INTERNAL_SYSCALL_DECL (__err); \ + long int __ret; \ + __ret = INTERNAL_SYSCALL (futex, __err, 4, (futexp), \ + __lll_private_flag (FUTEX_WAIT, private), \ + (val), (timespec)); \ + __ret; \ + }) + +#define lll_futex_timed_wait_bitset(futexp, val, timespec, clockbit, private) \ + ({ \ + INTERNAL_SYSCALL_DECL (__err); \ + long int __ret; \ + int __op = FUTEX_WAIT_BITSET | clockbit; \ + __ret = INTERNAL_SYSCALL (futex, __err, 6, (futexp), \ + __lll_private_flag (__op, private), \ + (val), (timespec), NULL /* Unused. */, \ + FUTEX_BITSET_MATCH_ANY); \ + __ret; \ + }) + +#define lll_futex_wake(futexp, nr, private) \ + ({ \ + INTERNAL_SYSCALL_DECL (__err); \ + long int __ret; \ + __ret = INTERNAL_SYSCALL (futex, __err, 4, (futexp), \ + __lll_private_flag (FUTEX_WAKE, private), \ + (nr), 0); \ + __ret; \ + }) + +#define lll_robust_dead(futexv, private) \ + do \ + { \ + int *__futexp = &(futexv); \ + atomic_or (__futexp, FUTEX_OWNER_DIED); \ + lll_futex_wake (__futexp, 1, private); \ + } \ + while (0) + +/* Returns non-zero if error happened, zero if success. */ +#define lll_futex_requeue(futexp, nr_wake, nr_move, mutex, val, private) \ + ({ \ + INTERNAL_SYSCALL_DECL (__err); \ + long int __ret; \ + __ret = INTERNAL_SYSCALL (futex, __err, 6, (futexp), \ + __lll_private_flag (FUTEX_CMP_REQUEUE, private),\ + (nr_wake), (nr_move), (mutex), (val)); \ + INTERNAL_SYSCALL_ERROR_P (__ret, __err); \ + }) + + +/* Returns non-zero if error happened, zero if success. */ +#define lll_futex_wake_unlock(futexp, nr_wake, nr_wake2, futexp2, private) \ + ({ \ + INTERNAL_SYSCALL_DECL (__err); \ + long int __ret; \ + __ret = INTERNAL_SYSCALL (futex, __err, 6, (futexp), \ + __lll_private_flag (FUTEX_WAKE_OP, private), \ + (nr_wake), (nr_wake2), (futexp2), \ + FUTEX_OP_CLEAR_WAKE_IF_GT_ONE); \ + INTERNAL_SYSCALL_ERROR_P (__ret, __err); \ + }) + + +#define lll_trylock(lock) \ + atomic_compare_and_exchange_val_acq(&(lock), 1, 0) + +#define lll_cond_trylock(lock) \ + atomic_compare_and_exchange_val_acq(&(lock), 2, 0) + +#define __lll_robust_trylock(futex, id) \ + (atomic_compare_and_exchange_val_acq (futex, id, 0) != 0) +#define lll_robust_trylock(lock, id) \ + __lll_robust_trylock (&(lock), id) + +extern void __lll_lock_wait_private (int *futex) attribute_hidden; +extern void __lll_lock_wait (int *futex, int private) attribute_hidden; +extern int __lll_robust_lock_wait (int *futex, int private) attribute_hidden; + +#define __lll_lock(futex, private) \ + ((void) ({ \ + int *__futex = (futex); \ + if (__builtin_expect (atomic_compare_and_exchange_val_acq (__futex, \ + 1, 0), 0)) \ + { \ + if (__builtin_constant_p (private) && (private) == LLL_PRIVATE) \ + __lll_lock_wait_private (__futex); \ + else \ + __lll_lock_wait (__futex, private); \ + } \ + })) +#define lll_lock(futex, private) __lll_lock (&(futex), private) + + +#define __lll_robust_lock(futex, id, private) \ + ({ \ + int *__futex = (futex); \ + int __val = 0; \ + \ + if (__builtin_expect (atomic_compare_and_exchange_bool_acq (__futex, id, \ + 0), 0)) \ + __val = __lll_robust_lock_wait (__futex, private); \ + __val; \ + }) +#define lll_robust_lock(futex, id, private) \ + __lll_robust_lock (&(futex), id, private) + + +#define __lll_cond_lock(futex, private) \ + ((void) ({ \ + int *__futex = (futex); \ + if (__builtin_expect (atomic_exchange_acq (__futex, 2), 0)) \ + __lll_lock_wait (__futex, private); \ + })) +#define lll_cond_lock(futex, private) __lll_cond_lock (&(futex), private) + + +#define lll_robust_cond_lock(futex, id, private) \ + __lll_robust_lock (&(futex), (id) | FUTEX_WAITERS, private) + + +extern int __lll_timedlock_wait (int *futex, const struct timespec *, + int private) attribute_hidden; +extern int __lll_robust_timedlock_wait (int *futex, const struct timespec *, + int private) attribute_hidden; + +#define __lll_timedlock(futex, abstime, private) \ + ({ \ + int *__futex = (futex); \ + int __val = 0; \ + \ + if (__builtin_expect (atomic_exchange_acq (__futex, 1), 0)) \ + __val = __lll_timedlock_wait (__futex, abstime, private); \ + __val; \ + }) +#define lll_timedlock(futex, abstime, private) \ + __lll_timedlock (&(futex), abstime, private) + + +#define __lll_robust_timedlock(futex, abstime, id, private) \ + ({ \ + int *__futex = (futex); \ + int __val = 0; \ + \ + if (__builtin_expect (atomic_compare_and_exchange_bool_acq (__futex, id, \ + 0), 0)) \ + __val = __lll_robust_timedlock_wait (__futex, abstime, private); \ + __val; \ + }) +#define lll_robust_timedlock(futex, abstime, id, private) \ + __lll_robust_timedlock (&(futex), abstime, id, private) + + +#define __lll_unlock(futex, private) \ + (void) \ + ({ int *__futex = (futex); \ + int __oldval = atomic_exchange_rel (__futex, 0); \ + if (__builtin_expect (__oldval > 1, 0)) \ + lll_futex_wake (__futex, 1, private); \ + }) +#define lll_unlock(futex, private) __lll_unlock(&(futex), private) + + +#define __lll_robust_unlock(futex, private) \ + (void) \ + ({ int *__futex = (futex); \ + int __oldval = atomic_exchange_rel (__futex, 0); \ + if (__builtin_expect (__oldval & FUTEX_WAITERS, 0)) \ + lll_futex_wake (__futex, 1, private); \ + }) +#define lll_robust_unlock(futex, private) \ + __lll_robust_unlock(&(futex), private) + + +#define lll_islocked(futex) \ + (futex != 0) + + +/* Our internal lock implementation is identical to the binary-compatible + mutex implementation. */ + +/* Initializers for lock. */ +#define LLL_LOCK_INITIALIZER (0) +#define LLL_LOCK_INITIALIZER_LOCKED (1) + +/* The states of a lock are: + 0 - untaken + 1 - taken by one user + >1 - taken by more users */ + +/* The kernel notifies a process which uses CLONE_CHILD_CLEARTID via futex + wakeup when the clone terminates. The memory location contains the + thread ID while the clone is running and is reset to zero + afterwards. */ +#define lll_wait_tid(tid) \ + do { \ + __typeof (tid) __tid; \ + while ((__tid = (tid)) != 0) \ + lll_futex_wait (&(tid), __tid, LLL_SHARED);\ + } while (0) + +extern int __lll_timedwait_tid (int *, const struct timespec *) + attribute_hidden; + +#define lll_timedwait_tid(tid, abstime) \ + ({ \ + int __res = 0; \ + if ((tid) != 0) \ + __res = __lll_timedwait_tid (&(tid), (abstime)); \ + __res; \ + }) + +#endif /* lowlevellock.h */ diff --git a/libpthread/nptl/sysdeps/unix/sysv/linux/xtensa/pt-initfini.c b/libpthread/nptl/sysdeps/unix/sysv/linux/xtensa/pt-initfini.c new file mode 100644 index 000000000..4e6d26e81 --- /dev/null +++ b/libpthread/nptl/sysdeps/unix/sysv/linux/xtensa/pt-initfini.c @@ -0,0 +1,134 @@ +/* Special .init and .fini section support. Linuxthread version. + Copyright (C) 1995,1996,1997,2000,2001,2002 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 of the License, or (at your option) any later version. + + In addition to the permissions in the GNU Lesser General Public + License, the Free Software Foundation gives you unlimited + permission to link the compiled version of this file with other + programs, and to distribute those programs without any restriction + coming from the use of this file. (The Library General Public + License restrictions do apply in other respects; for example, they + cover modification of the file, and distribution when not linked + into another program.) + + 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/>. */ + +/* This file is compiled into assembly code which is then munged by a sed + script into two files: crti.s and crtn.s. + + * crti.s puts a function prologue at the beginning of the + .init and .fini sections and defines global symbols for + those addresses, so they can be called as functions. + + * crtn.s puts the corresponding function epilogues + in the .init and .fini sections. */ + +#include <stdlib.h> + +/* We use embedded asm for .section unconditionally, as this makes it + easier to insert the necessary directives into crtn.S. */ +#define SECTION(x) __asm__ (".section " x ) + +/* Embed an #include to pull in the alignment and .end directives. */ +__asm__ ("\n#include \"defs.h\""); +__asm__ ("\n#if defined __i686 && defined __ASSEMBLER__"); +__asm__ ("\n#undef __i686"); +__asm__ ("\n#define __i686 __i686"); +__asm__ ("\n#endif"); + +/* The initial common code ends here. */ +__asm__ ("\n/*@HEADER_ENDS*/"); + +/* To determine whether we need .end and .align: */ +__asm__ ("\n/*@TESTS_BEGIN*/"); +extern void dummy (void (*foo) (void)); +void +dummy (void (*foo) (void)) +{ + if (foo) + (*foo) (); +} +__asm__ ("\n/*@TESTS_END*/"); + +/* The beginning of _init: */ +__asm__ ("\n/*@_init_PROLOG_BEGINS*/"); + +static void +call_initialize_minimal (void) +{ + extern void __pthread_initialize_minimal_internal (void) + __attribute ((visibility ("hidden"))); + + __pthread_initialize_minimal_internal (); +} + +SECTION (".init"); +extern void __attribute__ ((section (".init"))) _init (void); +void +_init (void) +{ + /* The very first thing we must do is to set up the registers. */ + call_initialize_minimal (); + + __asm__ ("ALIGN"); + __asm__("END_INIT"); + /* Now the epilog. */ + __asm__ ("\n/*@_init_PROLOG_ENDS*/"); + __asm__ ("\n/*@_init_EPILOG_BEGINS*/"); + SECTION(".init"); +} +__asm__ ("END_INIT"); + +/* End of the _init epilog, beginning of the _fini prolog. */ +__asm__ ("\n/*@_init_EPILOG_ENDS*/"); +__asm__ ("\n/*@_fini_PROLOG_BEGINS*/"); + +SECTION (".fini"); +extern void __attribute__ ((section (".fini"))) _fini (void); +void +_fini (void) +{ + + /* End of the _fini prolog. */ + __asm__ ("ALIGN"); + __asm__ ("END_FINI"); + __asm__ ("\n/*@_fini_PROLOG_ENDS*/"); + + /* Xtensa: It doesn't really matter whether GCC thinks this is a leaf + function or not, and the scripts that are supposed to remove the + call don't catch the literal, resulting in an undefined symbol + reference. */ +#if 0 + { + /* Let GCC know that _fini is not a leaf function by having a dummy + function call here. We arrange for this call to be omitted from + either crt file. */ + extern void i_am_not_a_leaf (void); + i_am_not_a_leaf (); + } +#endif + + /* Beginning of the _fini epilog. */ + __asm__ ("\n/*@_fini_EPILOG_BEGINS*/"); + SECTION (".fini"); +} +__asm__ ("END_FINI"); + +/* End of the _fini epilog. Any further generated assembly (e.g. .ident) + is shared between both crt files. */ +__asm__ ("\n/*@_fini_EPILOG_ENDS*/"); +__asm__ ("\n/*@TRAILER_BEGINS*/"); + +/* End of file. */ diff --git a/libpthread/nptl/sysdeps/unix/sysv/linux/xtensa/pthread_once.c b/libpthread/nptl/sysdeps/unix/sysv/linux/xtensa/pthread_once.c new file mode 100644 index 000000000..46085d3b5 --- /dev/null +++ b/libpthread/nptl/sysdeps/unix/sysv/linux/xtensa/pthread_once.c @@ -0,0 +1,89 @@ +/* Copyright (C) 2004-2013 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 "pthreadP.h" +#include <lowlevellock.h> + +unsigned long int __fork_generation attribute_hidden; + +static void +clear_once_control (void *arg) +{ + pthread_once_t *once_control = (pthread_once_t *) arg; + + *once_control = 0; + lll_futex_wake (once_control, INT_MAX, LLL_PRIVATE); +} + +int +__pthread_once (pthread_once_t *once_control, void (*init_routine) (void)) +{ + for (;;) + { + int oldval; + int newval; + + /* Pseudo code: + newval = __fork_generation | 1; + oldval = *once_control; + if ((oldval & 2) == 0) + *once_control = newval; + Do this atomically. + */ + do + { + newval = __fork_generation | 1; + oldval = *once_control; + if (oldval & 2) + break; + } while (atomic_compare_and_exchange_val_acq (once_control, newval, oldval) != oldval); + + /* Check if the initializer has already been done. */ + if ((oldval & 2) != 0) + return 0; + + /* Check if another thread already runs the initializer. */ + if ((oldval & 1) == 0) + break; + + /* Check whether the initializer execution was interrupted by a fork. */ + if (oldval != newval) + break; + + /* Same generation, some other thread was faster. Wait. */ + lll_futex_wait (once_control, oldval, LLL_PRIVATE); + } + + /* This thread is the first here. Do the initialization. + Register a cleanup handler so that in case the thread gets + interrupted the initialization can be restarted. */ + pthread_cleanup_push (clear_once_control, once_control); + + init_routine (); + + pthread_cleanup_pop (0); + + /* Say that the initialisation is done. */ + *once_control = __fork_generation | 2; + + /* Wake up all other threads. */ + lll_futex_wake (once_control, INT_MAX, LLL_PRIVATE); + + return 0; +} +weak_alias (__pthread_once, pthread_once) +strong_alias (__pthread_once, __pthread_once_internal) diff --git a/libpthread/nptl/sysdeps/unix/sysv/linux/xtensa/sysdep-cancel.h b/libpthread/nptl/sysdeps/unix/sysv/linux/xtensa/sysdep-cancel.h new file mode 100644 index 000000000..6bb2aeb56 --- /dev/null +++ b/libpthread/nptl/sysdeps/unix/sysv/linux/xtensa/sysdep-cancel.h @@ -0,0 +1,108 @@ +/* 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. */ + +#include <sysdep.h> +#include <tls.h> +/* #include <pt-machine.h> */ +#ifndef __ASSEMBLER__ +# include <pthreadP.h> +#endif + +#if !defined NOT_IN_libc || defined IS_IN_libpthread || defined IS_IN_librt +// FIXME: ENTRY includes an entry instruction, here we'd want entry sp, 48! +# undef PSEUDO +# define PSEUDO(name, syscall_name, args) \ + .text; \ + ENTRY (name) \ + SINGLE_THREAD_P(a15); \ + bnez a15, .Lpseudo_cancel; \ + DO_CALL (syscall_name, args); \ + bgez a2, .Lpseudo_done; \ + movi a4, -4095; \ + blt a2, a4, .Lpseudo_done; \ + j SYSCALL_ERROR_LABEL; \ + .Lpseudo_done: \ + retw; \ + .Lpseudo_cancel: \ + /* The syscall args are in a2...a7; no need to save */ \ + CENABLE; \ + /* The return value is in a10 and preserved across the syscall */ \ + DO_CALL (syscall_name, args); \ + CDISABLE; \ + bgez a2, .Lpseudo_end; \ + movi a4, -4095; \ + blt a2, a4, .Lpseudo_end; \ + j SYSCALL_ERROR_LABEL; \ + .Lpseudo_end: + + +# ifdef IS_IN_libpthread +# define CENABLE_FUNC __pthread_enable_asynccancel +# define CDISABLE_FUNC __pthread_disable_asynccancel +# define __local_multiple_threads __pthread_multiple_threads +# elif !defined NOT_IN_libc +# define CENABLE_FUNC __libc_enable_asynccancel +# define CDISABLE_FUNC __libc_disable_asynccancel +# define __local_multiple_threads __libc_multiple_threads +# elif defined IS_IN_librt +# define CENABLE_FUNC __librt_enable_asynccancel +# define CDISABLE_FUNC __librt_disable_asynccancel +# else +# error Unsupported library +# endif + +# define CENABLE movi a8, CENABLE_FUNC; \ + callx8 a8 +# define CDISABLE movi a8, CDISABLE_FUNC; \ + callx8 a8 + +# if defined IS_IN_libpthread || !defined NOT_IN_libc +# ifndef __ASSEMBLER__ +extern int __local_multiple_threads attribute_hidden; +# define SINGLE_THREAD_P __builtin_expect (__local_multiple_threads == 0, 1) +# else +# define SINGLE_THREAD_P(reg) movi reg, __local_multiple_threads; \ + l32i reg, reg, 0; +# endif + +# else +# ifndef __ASSEMBLER__ +# define SINGLE_THREAD_P \ + __builtin_expect (THREAD_GETMEM (THREAD_SELF, \ + header.multiple_threads) == 0, 1) +# else +# define SINGLE_THREAD_P(reg) \ + rur reg, threadptr; \ + l32i reg, reg, MULTIPLE_THREADS_OFFSET; +# endif +# endif + +#else + +/* This code should never be used but we define it anyhow. */ +# define SINGLE_THREAD_P (1) +# define NO_CANCELLATION 1 + +#endif + + +#ifndef __ASSEMBLER__ +# define RTLD_SINGLE_THREAD_P \ + __builtin_expect (THREAD_GETMEM (THREAD_SELF, \ + header.multiple_threads) == 0, 1) +#endif diff --git a/libpthread/nptl/sysdeps/unix/sysv/linux/xtensa/vfork.S b/libpthread/nptl/sysdeps/unix/sysv/linux/xtensa/vfork.S new file mode 100644 index 000000000..46eb76dd6 --- /dev/null +++ b/libpthread/nptl/sysdeps/unix/sysv/linux/xtensa/vfork.S @@ -0,0 +1,59 @@ +/* Copyright (C) 2013 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 <tls.h> + +/* + Save the PID value, save 0x80000000 if PID was 0. + Registers a2 and a3 are available; ar should return the PID and as threadptr + */ + +#define SAVE_PID(pid,tp,ar,as) \ + rur tp, threadptr; \ + movi ar, TLS_PRE_TCB_SIZE; \ + sub tp, tp, ar; \ + l32i pid, tp, PID; \ + neg ar, pid; \ + movi as, 0x80000000; \ + moveqz ar, as, ar; \ + s32i ar, tp, PID; \ + +/* + Restore the PID value, restore to 0 if saved value was 0x80000000 + Return value from the syscall is in a2. + */ +#define RESTORE_PID(pid,tp,res) \ + beqz res, 1f; \ + s32i pid, tp, PID; \ +1: + +/* + Special version for call12, where we don't have enough registers + available to preserve the original PID. + */ +#define RESTORE_PID12(ar, as, at) \ + rur as, threadptr; \ + movi ar, TLS_PRE_TCB_SIZE; \ + sub as, as, ar; \ + l32i ar, as, PID; \ + movi at, 0x80000000; \ + sub at, at, ar; \ + neg ar, ar; \ + moveqz ar, at, at; \ + s32i ar, as, PID; + +#include <libc/sysdeps/linux/xtensa/vfork.S> diff --git a/libpthread/nptl/sysdeps/xtensa/Makefile.arch b/libpthread/nptl/sysdeps/xtensa/Makefile.arch new file mode 100644 index 000000000..5bbd409c6 --- /dev/null +++ b/libpthread/nptl/sysdeps/xtensa/Makefile.arch @@ -0,0 +1,40 @@ +# Copyright (C) 2012 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. + +CFLAGS-pt-raise.c = -DNOT_IN_libc -DIS_IN_libpthread + +ASFLAGS-dl-tlsdesc.S = -DNOT_IN_libc=1 +ASFLAGS-pthread_spin_lock.S = -DNOT_IN_libc -DIS_IN_libpthread +ASFLAGS-pthread_spin_trylock.S = -DNOT_IN_libc -DIS_IN_libpthread +ASFLAGS-nptl-sysdep.S = -DNOT_IN_libc -DIS_IN_libpthread \ + -D_LIBC_REENTRANT \ + -I$(top_srcdir)libc/sysdeps/linux/xtensa + +libc_arch_a_CSRC = libc-tls.c +librt_arch_a_SSRC = dl-tlsdesc.S + +CFLAGS-gen_tlsdesc.c = -S +$(libpthread_arch_OUT)/gen_tlsdesc.c: $(libpthread_arch_DIR)/tlsdesc.sym | $(libpthread_arch_OUT) + $(do_awk) $(top_srcdir)extra/scripts/gen-as-const.awk $< > $@ +$(libpthread_arch_OUT)/gen_tlsdesc.s: $(libpthread_arch_OUT)/gen_tlsdesc.c | headers + $(compile.c) +libpthread-generated-y += $(libpthread_arch_OUT)/gen_tlsdesc.s +$(libpthread_arch_OUT)/tlsdesc.h: $(libpthread_arch_OUT)/gen_tlsdesc.s + $(do_sed) $(PTHREAD_GENERATE_MANGLE) $< > $@ + @if test ! -s $@ ; then rm -f $@ ; false ; fi +pregen-headers-$(UCLIBC_HAS_THREADS_NATIVE) += $(libpthread_arch_OUT)/tlsdesc.h diff --git a/libpthread/nptl/sysdeps/xtensa/dl-tls.h b/libpthread/nptl/sysdeps/xtensa/dl-tls.h new file mode 100644 index 000000000..29008dbb9 --- /dev/null +++ b/libpthread/nptl/sysdeps/xtensa/dl-tls.h @@ -0,0 +1,58 @@ +/* Thread-local storage handling in the ELF dynamic linker. Xtensa version. + Copyright (C) 2013 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 _XTENSA_DL_TLS_H +#define _XTENSA_DL_TLS_H 1 + +/* Type used for the representation of TLS information in the GOT. */ +typedef struct +{ + unsigned long int ti_module; + unsigned long int ti_offset; +} tls_index; + +extern void *__tls_get_addr (tls_index *ti); + +/* Type used to represent a TLS descriptor. */ +struct tlsdesc +{ + union + { + void *pointer; + long value; + } argument; + ptrdiff_t (*entry)(struct tlsdesc *); +}; + +/* Type used as the argument in a TLS descriptor for a symbol that + needs dynamic TLS offsets. */ +struct tlsdesc_dynamic_arg +{ + tls_index tlsinfo; + size_t gen_count; +}; + +extern ptrdiff_t attribute_hidden + _dl_tlsdesc_return(struct tlsdesc_dynamic_arg *); + +extern void *_dl_make_tlsdesc_dynamic (struct link_map *map, size_t ti_offset); +extern ptrdiff_t attribute_hidden + _dl_tlsdesc_dynamic(struct tlsdesc_dynamic_arg *); + +#endif diff --git a/libpthread/nptl/sysdeps/unix/sysv/linux/alpha/pt-vfork.S b/libpthread/nptl/sysdeps/xtensa/jmpbuf-unwind.h index a6005c1ab..bda498b8a 100644 --- a/libpthread/nptl/sysdeps/unix/sysv/linux/alpha/pt-vfork.S +++ b/libpthread/nptl/sysdeps/xtensa/jmpbuf-unwind.h @@ -1,4 +1,4 @@ -/* Copyright (C) 2003, 2004 Free Software Foundation, Inc. +/* Copyright (C) 2005,2006 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 @@ -15,28 +15,18 @@ License along with the GNU C Library; if not, see <http://www.gnu.org/licenses/>. */ -#include <sysdep.h> -#include <tcb-offsets.h> +#include <setjmp.h> +#include <stdint.h> +#include <unwind.h> -#undef PSEUDO_PREPARE_ARGS -#define PSEUDO_PREPARE_ARGS \ - /* Load the current cached pid value across the vfork. */ \ - rduniq; \ - ldl a2, PID_OFFSET(v0); \ - mov v0, a1; \ - /* Write back its negation, to indicate that the pid value is \ - uninitialized in the the child, and in the window between \ - here and the point at which we restore the value. */ \ - negl a2, t0; \ - stl t0, PID_OFFSET(v0); +/* Test if longjmp to JMPBUF would unwind the frame + containing a local variable at ADDRESS. */ +#undef _JMPBUF_UNWINDS +#define _JMPBUF_UNWINDS(jmpbuf, address, demangle) \ + ((void *) (address) < (void *) demangle (jmpbuf[JB_SP])) -PSEUDO (__vfork, vfork, 0) +#define _JMPBUF_CFA_UNWINDS_ADJ(_jmpbuf, _context, _adj) \ + _JMPBUF_UNWINDS_ADJ (_jmpbuf, (void *) _Unwind_GetCFA (_context), _adj) - /* If we're back in the parent, restore the saved pid. */ - beq v0, 1f - stl a2, PID_OFFSET(a1) -1: ret - -PSEUDO_END (__vfork) - -weak_alias (__vfork, vfork) +#define _JMPBUF_UNWINDS_ADJ(_jmpbuf, _address, _adj) \ + ((uintptr_t) (_address) - (_adj) < (uintptr_t) (_jmpbuf)[JB_SP] - (_adj)) diff --git a/libpthread/nptl/sysdeps/unix/sysv/linux/sparc/pt-vfork.S b/libpthread/nptl/sysdeps/xtensa/libc-tls.c index 37231a8c3..80494c56f 100644 --- a/libpthread/nptl/sysdeps/unix/sysv/linux/sparc/pt-vfork.S +++ b/libpthread/nptl/sysdeps/xtensa/libc-tls.c @@ -1,6 +1,6 @@ -/* Copyright (C) 2004 Free Software Foundation, Inc. +/* Thread-local storage handling in the ELF dynamic linker. Xtensa version. + Copyright (C) 2005 Free Software Foundation, Inc. This file is part of the GNU C Library. - Contributed by Jakub Jelinek <jakub@redhat.com>, 2004. The GNU C Library is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public @@ -16,29 +16,21 @@ License along with the GNU C Library; if not, see <http://www.gnu.org/licenses/>. */ -#include <sysdep.h> -#include <tcb-offsets.h> - - .text - .globl __syscall_error -ENTRY(__vfork) - ld [%g7 + PID], %o5 - sub %g0, %o5, %o4 - st %o4, [%g7 + PID] - - LOADSYSCALL(vfork) - ta 0x10 - bcc 2f - mov %o7, %g1 - st %o5, [%g7 + PID] - call __syscall_error - mov %g1, %o7 -2: sub %o1, 1, %o1 - andcc %o0, %o1, %o0 - bne,a 1f - st %o5, [%g7 + PID] -1: retl - nop -END(__vfork) - -weak_alias (__vfork, vfork) +#include <sysdeps/generic/libc-tls.c> +#include <dl-tls.h> + +#if defined(USE_TLS) && USE_TLS + +/* On Xtensa, linker optimizations are not required, so __tls_get_addr + can be called even in statically linked binaries. In this case module + must be always 1 and PT_TLS segment exist in the binary, otherwise it + would not link. */ + +void * +__tls_get_addr (tls_index *ti) +{ + dtv_t *dtv = THREAD_DTV (); + return (char *) dtv[1].pointer.val + ti->ti_offset; +} + +#endif diff --git a/libpthread/nptl/sysdeps/xtensa/pthread_spin_lock.S b/libpthread/nptl/sysdeps/xtensa/pthread_spin_lock.S new file mode 100644 index 000000000..1e220a863 --- /dev/null +++ b/libpthread/nptl/sysdeps/xtensa/pthread_spin_lock.S @@ -0,0 +1,37 @@ +/* Copyright (C) 2012 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. */ + + .text + .align 4 + + .globl pthread_spin_lock +pthread_spin_lock: + + entry a1, 16 + + movi a3, 0 + wsr a3, scompare1 + movi a3, 1 +1: s32c1i a3, a2, 0 + bnez a3, 1b + movi a2, 0 + + retw + + .type pthread_spin_lock, @function + .size pthread_spin_lock, .-pthread_spin_lock diff --git a/libpthread/nptl/sysdeps/unix/sysv/linux/metag/pt-vfork.S b/libpthread/nptl/sysdeps/xtensa/pthread_spin_trylock.S index 489c74936..a736b010f 100644 --- a/libpthread/nptl/sysdeps/unix/sysv/linux/metag/pt-vfork.S +++ b/libpthread/nptl/sysdeps/xtensa/pthread_spin_trylock.S @@ -16,36 +16,25 @@ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA. */ -#include <tcb-offsets.h> -#include <asm/unistd.h> - -#ifdef __PIC__ -#define __VFORK_METAG_LOAD_TP ___metag_load_tp@PLT -#else -#define __VFORK_METAG_LOAD_TP ___metag_load_tp -#endif - -/* Save the PID value. */ -#define SAVE_PID \ - SETL [A0StP++], D0FrT, D1RtP; \ - CALLR D1RtP, __VFORK_METAG_LOAD_TP; \ - SUB D0Re0, D0Re0, #TLS_PRE_TCB_SIZE; \ - GETD D0FrT, [D0Re0 + #PID]; \ - NEG D0FrT, D0FrT; \ - SETD [D0Re0 + #PID], D0FrT; \ - GETL D0FrT, D1RtP, [--A0StP]; - -#define RESTORE_PID \ - CMP D0Re0, #0; \ - BEQ 1f; \ - MSETL [A0StP++], D0Re0, D0FrT; \ - CALLR D1RtP, __VFORK_METAG_LOAD_TP; \ - SUB D0Re0, D0Re0, #TLS_PRE_TCB_SIZE; \ - GETD D0FrT, [D0Re0 + #PID]; \ - NEG D0FrT, D0FrT; \ - SETD [D0Re0 + #PID], D0FrT; \ - GETL D0FrT, D1RtP, [--A0StP]; \ - GETL D0Re0, D1Re0, [--A0StP]; \ -1: - -#include <../../../../../../../libc/sysdeps/linux/metag/vfork.S> +#define _ERRNO_H 1 +#include <bits/errno.h> + + .text + .align 4 + + .globl pthread_spin_trylock +pthread_spin_trylock: + + entry a1, 16 + + movi a3, 0 + wsr a3, scompare1 + movi a3, 1 + s32c1i a3, a2, 0 + movi a2, EBUSY + moveqz a2, a3, a3 + + retw + + .type pthread_spin_trylock, @function + .size pthread_spin_trylock, .-pthread_spin_trylock diff --git a/libpthread/nptl/sysdeps/xtensa/pthreaddef.h b/libpthread/nptl/sysdeps/xtensa/pthreaddef.h new file mode 100644 index 000000000..e72b4bc58 --- /dev/null +++ b/libpthread/nptl/sysdeps/xtensa/pthreaddef.h @@ -0,0 +1,39 @@ +/* Copyright (C) 2002, 2003, 2005 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. */ + +/* Default stack size. */ +#define ARCH_STACK_DEFAULT_SIZE (2 * 1024 * 1024) + +/* Required stack pointer alignment at beginning. */ +#define STACK_ALIGN 16 + +/* Minimal stack size after allocating thread descriptor and guard size. */ +#define MINIMAL_REST_STACK 2048 + +/* Alignment requirement for TCB. */ +#define TCB_ALIGNMENT 16 + + +/* 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/libpthread/nptl/sysdeps/xtensa/tcb-offsets.sym b/libpthread/nptl/sysdeps/xtensa/tcb-offsets.sym new file mode 100644 index 000000000..4c8687647 --- /dev/null +++ b/libpthread/nptl/sysdeps/xtensa/tcb-offsets.sym @@ -0,0 +1,7 @@ +#include <sysdep.h> +#include <tls.h> + +TLS_PRE_TCB_SIZE sizeof (struct pthread) +MULTIPLE_THREADS_OFFSET offsetof (struct pthread, header.multiple_threads) +PID offsetof (struct pthread, pid) +TID offsetof (struct pthread, tid) diff --git a/libpthread/nptl/sysdeps/xtensa/tls.h b/libpthread/nptl/sysdeps/xtensa/tls.h new file mode 100644 index 000000000..f0cb27c01 --- /dev/null +++ b/libpthread/nptl/sysdeps/xtensa/tls.h @@ -0,0 +1,159 @@ +/* Definition for thread-local data handling. NPTL/Xtensa version. + Copyright (C) 2012 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 <stdbool.h> +# include <stddef.h> +# include <stdint.h> + +/* Type for the dtv. */ +typedef union dtv +{ + size_t counter; + struct + { + void *val; + bool is_static; + } pointer; +} dtv_t; + + +#else /* __ASSEMBLER__ */ +# include <tcb-offsets.h> +#endif /* __ASSEMBLER__ */ + +/* We require TLS support in the tools. */ +#define HAVE_TLS_SUPPORT 1 +#define HAVE_TLS_MODEL_ATTRIBUTE 1 +#define HAVE___THREAD 1 + +/* Signal that TLS support is available. */ +#define USE_TLS 1 + +#ifndef __ASSEMBLER__ + +/* Get system call information. */ +# include <sysdep.h> + +/* The TLS blocks start right after the TCB. */ +# define TLS_DTV_AT_TP 1 + +/* Get the thread descriptor definition. */ +# include <../../descr.h> + +typedef struct +{ + dtv_t *dtv; + void *private; +} tcbhead_t; + +/* This is the size of the initial TCB. */ +# define TLS_INIT_TCB_SIZE sizeof (tcbhead_t) + +/* Alignment requirements for the initial TCB. */ +# define TLS_INIT_TCB_ALIGN 16 + +/* This is the size of the TCB. */ +# define TLS_TCB_SIZE sizeof (tcbhead_t) + +/* This is the size we need before TCB. */ +# define TLS_PRE_TCB_SIZE sizeof (struct pthread) + +/* Alignment requirements for the TCB. */ +# define TLS_TCB_ALIGN 16 + + +/* Install the dtv pointer. The pointer passed is to the element with + index -1 which contain the length. */ +# define INSTALL_DTV(tcbp, dtvp) \ + (((tcbhead_t *) (tcbp))->dtv = (dtvp) + 1) + +/* Install new dtv for current thread. */ +# define INSTALL_NEW_DTV(dtv) \ + ({ tcbhead_t *__tcbp; \ + __asm__ __volatile__ ("rur %0, threadptr" : "=r" (__tcbp)); \ + __tcbp->dtv = (dtv); }) \ + +/* Return dtv of given thread descriptor. */ +# define GET_DTV(tcbp) \ + (((tcbhead_t *) (tcbp))->dtv) + +/* Code to initially initialize the thread pointer. This might need + special attention since 'errno' is not yet available and if the + operation can cause a failure 'errno' must not be touched. */ +# define TLS_INIT_TP(tcbp, secondcall) \ + ({ __asm__ __volatile__ ("wur %0, threadptr" : : "r" (tcbp)); 0; }) + +/* Return the address of the dtv for the current thread. */ +# define THREAD_DTV() \ + ({ tcbhead_t *__tcbp; \ + __asm__ __volatile__ ("rur %0, threadptr" : "=r" (__tcbp)); \ + __tcbp->dtv; }) + +/* Return the thread descriptor for the current thread. */ +# define THREAD_SELF \ + ({ struct pthread *__self; \ + __asm__ ("rur %0, threadptr" : "=r" (__self)); \ + __self - 1; }) + +/* Magic for libthread_db to know how to do THREAD_SELF. */ +# define DB_THREAD_SELF \ + CONST_THREAD_AREA (32, sizeof (struct pthread)) + +/* Access to data in the thread descriptor is easy. */ +#define THREAD_GETMEM(descr, member) \ + descr->member +#define THREAD_GETMEM_NC(descr, member, idx) \ + descr->member[idx] +#define THREAD_SETMEM(descr, member, value) \ + descr->member = (value) +#define THREAD_SETMEM_NC(descr, member, idx, value) \ + descr->member[idx] = (value) + +/* Get and set the global scope generation counter in struct pthread. */ +#define THREAD_GSCOPE_FLAG_UNUSED 0 +#define THREAD_GSCOPE_FLAG_USED 1 +#define THREAD_GSCOPE_FLAG_WAIT 2 +#define THREAD_GSCOPE_RESET_FLAG() \ + do \ + { int __res \ + = atomic_exchange_rel (&THREAD_SELF->header.gscope_flag, \ + THREAD_GSCOPE_FLAG_UNUSED); \ + if (__res == THREAD_GSCOPE_FLAG_WAIT) \ + lll_futex_wake (&THREAD_SELF->header.gscope_flag, 1, LLL_PRIVATE); \ + } \ + while (0) +#define THREAD_GSCOPE_SET_FLAG() \ + do \ + { \ + THREAD_SELF->header.gscope_flag = THREAD_GSCOPE_FLAG_USED; \ + atomic_write_barrier (); \ + } \ + while (0) + +#define THREAD_GSCOPE_WAIT() \ + GL(dl_wait_lookup_done) () + +#endif /* __ASSEMBLER__ */ + +#endif /* tls.h */ diff --git a/libpthread/nptl/sysdeps/xtensa/tlsdesc.sym b/libpthread/nptl/sysdeps/xtensa/tlsdesc.sym new file mode 100644 index 000000000..b18bf5fb9 --- /dev/null +++ b/libpthread/nptl/sysdeps/xtensa/tlsdesc.sym @@ -0,0 +1,10 @@ +#include <stddef.h> +#include <sysdep.h> +#include <tls.h> +#include <link.h> +#include <dl-tls.h> + +TLSDESC_ARG offsetof(struct tlsdesc, argument) +TLSDESC_GEN_COUNT offsetof(struct tlsdesc_dynamic_arg, gen_count) +TLSDESC_MODID offsetof(struct tlsdesc_dynamic_arg, tlsinfo.ti_module) +TLSDESC_MODOFF offsetof(struct tlsdesc_dynamic_arg, tlsinfo.ti_offset) |