diff options
Diffstat (limited to 'libpthread/linuxthreads.old/sysdeps')
29 files changed, 3536 insertions, 0 deletions
diff --git a/libpthread/linuxthreads.old/sysdeps/alpha/pt-machine.h b/libpthread/linuxthreads.old/sysdeps/alpha/pt-machine.h new file mode 100644 index 000000000..853ac6f04 --- /dev/null +++ b/libpthread/linuxthreads.old/sysdeps/alpha/pt-machine.h @@ -0,0 +1,128 @@ +/* Machine-dependent pthreads configuration and inline functions. + Alpha version. + Copyright (C) 1996, 1997, 1998, 2000, 2002, 2003 + Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Richard Henderson <rth@tamu.edu>. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public License as + published by the Free Software Foundation; either version 2.1 of the + License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; see the file COPYING.LIB. If not, + write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, + Boston, MA 02111-1307, USA. */ + +#ifndef _PT_MACHINE_H +#define _PT_MACHINE_H 1 + +#ifndef PT_EI +# define PT_EI extern inline __attribute__ ((always_inline)) +#endif + +#ifdef __linux__ +# include <asm/pal.h> +#else +# include <machine/pal.h> +#endif + +extern long int testandset (int *spinlock); +extern int __compare_and_swap (long int *p, long int oldval, long int newval); + +/* Get some notion of the current stack. Need not be exactly the top + of the stack, just something somewhere in the current frame. */ +#define CURRENT_STACK_FRAME stack_pointer +register char *stack_pointer __asm__("$30"); + + +/* Memory barrier; default is to do nothing */ +#define MEMORY_BARRIER() __asm__ __volatile__("mb" : : : "memory") +/* Write barrier. */ +#define WRITE_MEMORY_BARRIER() __asm__ __volatile__("wmb" : : : "memory") + + +/* Spinlock implementation; required. */ +PT_EI long int +testandset (int *spinlock) +{ + long int ret, temp; + + __asm__ __volatile__( + "/* Inline spinlock test & set */\n" + "1:\t" + "ldl_l %0,%3\n\t" + "bne %0,2f\n\t" + "or $31,1,%1\n\t" + "stl_c %1,%2\n\t" + "beq %1,1b\n" + "2:\tmb\n" + "/* End spinlock test & set */" + : "=&r"(ret), "=&r"(temp), "=m"(*spinlock) + : "m"(*spinlock) + : "memory"); + + return ret; +} + + +/* Begin allocating thread stacks at this address. Default is to allocate + them just below the initial program stack. */ +#define THREAD_STACK_START_ADDRESS 0x40000000000 + + +/* Return the thread descriptor for the current thread. */ +#define THREAD_SELF \ +({ \ + register pthread_descr __self __asm__("$0"); \ + __asm__ ("call_pal %1" : "=r"(__self) : "i"(PAL_rduniq)); \ + __self; \ +}) + +/* Initialize the thread-unique value. */ +#define INIT_THREAD_SELF(descr, nr) \ +{ \ + register pthread_descr __self __asm__("$16") = (descr); \ + __asm__ __volatile__ ("call_pal %1" : : "r"(__self), "i"(PAL_wruniq)); \ +} + + +/* Compare-and-swap for semaphores. */ + +#define HAS_COMPARE_AND_SWAP +PT_EI int +__compare_and_swap (long int *p, long int oldval, long int newval) +{ + long int ret; + + __asm__ __volatile__ ( + "/* Inline compare & swap */\n" + "1:\t" + "ldq_l %0,%4\n\t" + "cmpeq %0,%2,%0\n\t" + "beq %0,2f\n\t" + "mov %3,%0\n\t" + "stq_c %0,%1\n\t" + "beq %0,1b\n\t" + "2:\tmb\n" + "/* End compare & swap */" + : "=&r"(ret), "=m"(*p) + : "r"(oldval), "r"(newval), "m"(*p) + : "memory"); + + return ret; +} + +/* We want the OS to assign stack addresses. */ +#define FLOATING_STACKS 1 + +/* Maximum size of the stack if the rlimit is unlimited. */ +#define ARCH_STACK_MAX_SIZE 32*1024*1024 + +#endif /* pt-machine.h */ diff --git a/libpthread/linuxthreads.old/sysdeps/arm/pt-machine.h b/libpthread/linuxthreads.old/sysdeps/arm/pt-machine.h new file mode 100644 index 000000000..284567970 --- /dev/null +++ b/libpthread/linuxthreads.old/sysdeps/arm/pt-machine.h @@ -0,0 +1,70 @@ +/* Machine-dependent pthreads configuration and inline functions. + ARM version. + Copyright (C) 1997, 1998, 2000, 2002 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Philip Blundell <philb@gnu.org>. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU 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, + write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, + Boston, MA 02111-1307, USA. */ + +#ifndef _PT_MACHINE_H +#define _PT_MACHINE_H 1 + +#ifndef PT_EI +# define PT_EI extern inline +#endif + +extern long int testandset (int *spinlock); +extern int __compare_and_swap (long int *p, long int oldval, long int newval); + +/* This will not work on ARM1 or ARM2 because SWP is lacking on those + machines. Unfortunately we have no way to detect this at compile + time; let's hope nobody tries to use one. */ + +/* Spinlock implementation; required. */ +PT_EI long int +testandset (int *spinlock) +{ + register unsigned int ret; + +#if defined(__thumb__) + void *pc; + __asm__ __volatile__( + ".align 0\n" + "\tbx pc\n" + "\tnop\n" + "\t.arm\n" + "\tswp %0, %2, [%3]\n" + "\torr %1, pc, #1\n" + "\tbx %1\n" + "\t.force_thumb" + : "=r"(ret), "=r"(pc) + : "0"(1), "r"(spinlock)); +#else + __asm__ __volatile__("swp %0, %1, [%2]" + : "=r"(ret) + : "0"(1), "r"(spinlock)); +#endif + + return ret; +} + + +/* Get some notion of the current stack. Need not be exactly the top + of the stack, just something somewhere in the current frame. */ +#define CURRENT_STACK_FRAME stack_pointer +register char * stack_pointer __asm__ ("sp"); + +#endif /* pt-machine.h */ diff --git a/libpthread/linuxthreads.old/sysdeps/bfin/pt-machine.h b/libpthread/linuxthreads.old/sysdeps/bfin/pt-machine.h new file mode 100644 index 000000000..fef16263e --- /dev/null +++ b/libpthread/linuxthreads.old/sysdeps/bfin/pt-machine.h @@ -0,0 +1,57 @@ +/* Machine-dependent pthreads configuration and inline functions. + Copyright (C) 1996, 1998, 2000, 2002 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Richard Henderson <rth@tamu.edu>. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public License as + published by the Free Software Foundation; either version 2.1 of the + License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; see the file COPYING.LIB. If + not, write to the Free Software Foundation, Inc., + 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +#ifndef _PT_MACHINE_H +#define _PT_MACHINE_H 1 + +#ifndef PT_EI +# define PT_EI extern inline +#endif + +extern long int testandset (int *spinlock); +extern int __compare_and_swap (long *, long , long); + +/* Spinlock implementation; required. */ +PT_EI long int +testandset (int *spinlock) +{ + if (*spinlock) + return 1; + else + { + *spinlock=1; + return 0; + } +} + +#define HAS_COMPARE_AND_SWAP + +PT_EI int +__compare_and_swap (long int *p, long int oldval, long int newval) +{ + if((*p ^ oldval) == 0) { + *p = newval; + return 1; + } + else + return 0; +} + +#endif /* pt-machine.h */ diff --git a/libpthread/linuxthreads.old/sysdeps/cris/pt-machine.h b/libpthread/linuxthreads.old/sysdeps/cris/pt-machine.h new file mode 100644 index 000000000..431da7101 --- /dev/null +++ b/libpthread/linuxthreads.old/sysdeps/cris/pt-machine.h @@ -0,0 +1,58 @@ +/* Machine-dependent pthreads configuration and inline functions. + CRIS version. + Copyright (C) 2001, 2002, 2003 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + 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, + write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, + Boston, MA 02111-1307, USA. */ + +#ifndef _PT_MACHINE_H +#define _PT_MACHINE_H 1 + +#ifndef PT_EI +# define PT_EI extern inline __attribute__ ((always_inline)) +#endif + +extern long int testandset (int *spinlock); +extern int __compare_and_swap (long int *p, long int oldval, long int newval); + +PT_EI long int +testandset (int *spinlock) +{ + register unsigned long int ret; + + /* Note the use of a dummy output of *spinlock to expose the write. The + memory barrier is to stop *other* writes being moved past this code. */ + __asm__ __volatile__("clearf\n" + "0:\n\t" + "movu.b [%2],%0\n\t" + "ax\n\t" + "move.b %3,[%2]\n\t" + "bwf 0b\n\t" + "clearf" + : "=&r" (ret), "=m" (*spinlock) + : "r" (spinlock), "r" ((int) 1) + : "memory"); + return ret; +} + + +/* Get some notion of the current stack. Need not be exactly the top + of the stack, just something somewhere in the current frame. + I don't trust register variables, so let's do this the safe way. */ +#define CURRENT_STACK_FRAME \ + ({ char *sp; __asm__ ("move.d $sp,%0" : "=rm" (sp)); sp; }) + +#endif /* pt-machine.h */ diff --git a/libpthread/linuxthreads.old/sysdeps/frv/pt-machine.h b/libpthread/linuxthreads.old/sysdeps/frv/pt-machine.h new file mode 100644 index 000000000..64df5ffdb --- /dev/null +++ b/libpthread/linuxthreads.old/sysdeps/frv/pt-machine.h @@ -0,0 +1,68 @@ +/* Machine-dependent pthreads configuration and inline functions. + FR-V version. + Copyright (C) 2004 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Alexandre Oliva <aoliva@redhat.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; see the file COPYING.LIB. If + not, write to the Free Software Foundation, Inc., + 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +#ifndef _PT_MACHINE_H +#define _PT_MACHINE_H 1 + +#ifndef __ASSEMBLER__ + +#ifndef PT_EI +# define PT_EI extern inline __attribute__ ((always_inline)) +#endif + +/* Spinlock implementation; required. */ +PT_EI long int +testandset (int *spinlock) +{ + int i = 1; + asm ("swap%I0 %M0, %1" : "+m"(*(volatile int *)spinlock), "+r"(i)); + return i; +} + +/* We want the OS to assign stack addresses. */ +#define FLOATING_STACKS 1 + +/* This symbol is defined by the ABI as the stack size requested by + the main program. */ +extern char __stacksize; +#define ARCH_STACK_MAX_SIZE ((unsigned long)&__stacksize) + +/* Memory barrier; default is to do nothing */ +#define MEMORY_BARRIER() __asm__ __volatile__("membar" : : : "memory") +/* Write barrier. */ +#define WRITE_MEMORY_BARRIER() __asm__ __volatile__("membar" : : : "memory") + +/* Return the thread descriptor for the current thread. */ +register struct _pthread_descr_struct *THREAD_SELF asm ("gr29"); +#define THREAD_SELF THREAD_SELF + +/* Initialize the thread-unique value. */ +#define INIT_THREAD_SELF(descr, nr) \ + (THREAD_SELF = descr) + +/* Get some notion of the current stack. Need not be exactly the top + of the stack, just something somewhere in the current frame. */ +#define CURRENT_STACK_FRAME stack_pointer +register char * stack_pointer __asm__ ("sp"); + +#endif + +#endif /* pt-machine.h */ diff --git a/libpthread/linuxthreads.old/sysdeps/i386/pt-machine.h b/libpthread/linuxthreads.old/sysdeps/i386/pt-machine.h new file mode 100644 index 000000000..af1818d7b --- /dev/null +++ b/libpthread/linuxthreads.old/sysdeps/i386/pt-machine.h @@ -0,0 +1,158 @@ +/* Machine-dependent pthreads configuration and inline functions. + i386 version. + Copyright (C) 1996-2001, 2002, 2003 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Richard Henderson <rth@tamu.edu>. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public License as + published by the Free Software Foundation; either version 2.1 of the + License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; see the file COPYING.LIB. If not, + write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, + Boston, MA 02111-1307, USA. */ + +#ifndef _PT_MACHINE_H +#define _PT_MACHINE_H 1 + +#ifndef __ASSEMBLER__ +#ifndef PT_EI +# define PT_EI extern inline __attribute__ ((always_inline)) +#endif + +extern long int testandset (int *spinlock); +extern int __compare_and_swap (long int *p, long int oldval, long int newval); + +/* 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 __builtin_frame_address (0) + + +/* See if we can optimize for newer cpus... */ +#if defined __GNUC__ && __GNUC__ >= 2 && \ + (defined __i486__ || defined __pentium__ || defined __pentiumpro__ || defined __pentium4__ || \ + defined __athlon__ || defined __k8__) + +/* Spinlock implementation; required. */ +PT_EI long int +testandset (int *spinlock) +{ + long int ret; + + __asm__ __volatile__ ( + "xchgl %0, %1" + : "=r" (ret), "=m" (*spinlock) + : "0" (1), "m" (*spinlock) + : "memory"); + + return ret; +} + +/* Compare-and-swap for semaphores. It's always available on i686. */ +#define HAS_COMPARE_AND_SWAP + +PT_EI int +__compare_and_swap (long int *p, long int oldval, long int newval) +{ + char ret; + long int readval; + + __asm__ __volatile__ ("lock; cmpxchgl %3, %1; sete %0" + : "=q" (ret), "=m" (*p), "=a" (readval) + : "r" (newval), "m" (*p), "a" (oldval) + : "memory"); + return ret; +} + +#if __ASSUME_LDT_WORKS > 0 +#include "../useldt.h" +#endif + +/* The P4 and above really want some help to prevent overheating. */ +#define BUSY_WAIT_NOP __asm__ ("rep; nop") + + +#else /* Generic i386 implementation */ + + + +/* Spinlock implementation; required. */ +PT_EI long int +testandset (int *spinlock) +{ + long int ret; + + __asm__ __volatile__( + "xchgl %0, %1" + : "=r"(ret), "=m"(*spinlock) + : "0"(1), "m"(*spinlock) + : "memory"); + + return ret; +} + + +/* Compare-and-swap for semaphores. + Available on the 486 and above, but not on the 386. + We test dynamically whether it's available or not. */ + +#define HAS_COMPARE_AND_SWAP +#define TEST_FOR_COMPARE_AND_SWAP + +PT_EI int +__compare_and_swap (long int *p, long int oldval, long int newval) +{ + char ret; + long int readval; + + __asm__ __volatile__ ("lock; cmpxchgl %3, %1; sete %0" + : "=q" (ret), "=m" (*p), "=a" (readval) + : "r" (newval), "m" (*p), "a" (oldval) + : "memory"); + return ret; +} + + +PT_EI int +get_eflags (void) +{ + int res; + __asm__ __volatile__ ("pushfl; popl %0" : "=r" (res) : ); + return res; +} + + +PT_EI void +set_eflags (int newflags) +{ + __asm__ __volatile__ ("pushl %0; popfl" : : "r" (newflags) : "cc"); +} + + +PT_EI int +compare_and_swap_is_available (void) +{ + int oldflags = get_eflags (); + int changed; + /* Flip AC bit in EFLAGS. */ + set_eflags (oldflags ^ 0x40000); + /* See if bit changed. */ + changed = (get_eflags () ^ oldflags) & 0x40000; + /* Restore EFLAGS. */ + set_eflags (oldflags); + /* If the AC flag did not change, it's a 386 and it lacks cmpxchg. + Otherwise, it's a 486 or above and it has cmpxchg. */ + return changed != 0; +} +#endif /* Generic i386 implementation */ + +#endif /* __ASSEMBLER__ */ + +#endif /* pt-machine.h */ diff --git a/libpthread/linuxthreads.old/sysdeps/i386/tls.h b/libpthread/linuxthreads.old/sysdeps/i386/tls.h new file mode 100644 index 000000000..e4f007ee3 --- /dev/null +++ b/libpthread/linuxthreads.old/sysdeps/i386/tls.h @@ -0,0 +1,185 @@ +/* Definition for thread-local data handling. linuxthreads/i386 version. + Copyright (C) 2002, 2003, 2004, 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. */ + +#ifndef _TLS_H +#define _TLS_H + +# include <pt-machine.h> + +#ifndef __ASSEMBLER__ +# include <stdbool.h> +# include <stddef.h> +# include <stdint.h> + +/* Type for the dtv. */ +typedef union dtv +{ + size_t counter; + void *pointer; +} dtv_t; + + +typedef struct +{ + void *tcb; /* Pointer to the TCB. Not necessary the + thread descriptor used by libpthread. */ + dtv_t *dtv; + void *self; /* Pointer to the thread descriptor. */ +} tcbhead_t; +#endif + + +/* We can support TLS only if the floating-stack support is available. */ +#if defined FLOATING_STACKS && defined 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) \ + ({ struct _pthread_descr_struct *__descr; \ + THREAD_SETMEM (__descr, p_header.data.dtvp, (dtv)); }) + +/* Return dtv of given thread descriptor. */ +# define GET_DTV(descr) \ + (((tcbhead_t *) (descr))->dtv) + +# ifdef __PIC__ +# define TLS_EBX_ARG "r" +# define TLS_LOAD_EBX "xchgl %3, %%ebx\n\t" +# else +# define TLS_EBX_ARG "b" +# define TLS_LOAD_EBX +# endif + +# define TLS_DO_MODIFY_LDT(descr, nr) \ +({ \ + struct modify_ldt_ldt_s ldt_entry = \ + { nr, (unsigned long int) (descr), 0xfffff /* 4GB in pages */, \ + 1, 0, 0, 1, 0, 1, 0 }; \ + int result; \ + asm volatile (TLS_LOAD_EBX \ + "int $0x80\n\t" \ + TLS_LOAD_EBX \ + : "=a" (result) \ + : "0" (__NR_modify_ldt), \ + /* The extra argument with the "m" constraint is necessary \ + to let the compiler know that we are accessing LDT_ENTRY \ + here. */ \ + "m" (ldt_entry), TLS_EBX_ARG (1), "c" (&ldt_entry), \ + "d" (sizeof (ldt_entry))); \ + __builtin_expect (result, 0) != 0 ? -1 : nr * 8 + 7; \ +}) + +# define TLS_DO_SET_THREAD_AREA(descr, secondcall) \ +({ \ + struct modify_ldt_ldt_s ldt_entry = \ + { -1, (unsigned long int) (descr), 0xfffff /* 4GB in pages */, \ + 1, 0, 0, 1, 0, 1, 0 }; \ + int result; \ + if (secondcall) \ + ldt_entry.entry_number = ({ int _gs; \ + asm ("movw %%gs, %w0" : "=q" (_gs)); \ + (_gs & 0xffff) >> 3; }); \ + asm volatile (TLS_LOAD_EBX \ + "int $0x80\n\t" \ + TLS_LOAD_EBX \ + : "=a" (result), "=m" (ldt_entry.entry_number) \ + : "0" (__NR_set_thread_area), \ + /* The extra argument with the "m" constraint is necessary \ + to let the compiler know that we are accessing LDT_ENTRY \ + here. */ \ + TLS_EBX_ARG (&ldt_entry), "m" (ldt_entry)); \ + __builtin_expect (result, 0) == 0 ? ldt_entry.entry_number * 8 + 3 : -1; \ +}) + +# ifdef __ASSUME_SET_THREAD_AREA_SYSCALL +# define TLS_SETUP_GS_SEGMENT(descr, secondcall) \ + TLS_DO_SET_THREAD_AREA (descr, firstcall) +# elif defined __NR_set_thread_area +# define TLS_SETUP_GS_SEGMENT(descr, secondcall) \ + ({ int __seg = TLS_DO_SET_THREAD_AREA (descr, secondcall); \ + __seg == -1 ? TLS_DO_MODIFY_LDT (descr, 0) : __seg; }) +# else +# define TLS_SETUP_GS_SEGMENT(descr, secondcall) \ + TLS_DO_MODIFY_LDT ((descr), 0) +# endif + +/* 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(descr, secondcall) \ + ({ \ + void *_descr = (descr); \ + tcbhead_t *head = _descr; \ + int __gs; \ + \ + head->tcb = _descr; \ + /* For now the thread descriptor is at the same address. */ \ + head->self = _descr; \ + \ + __gs = TLS_SETUP_GS_SEGMENT (_descr, secondcall); \ + if (__builtin_expect (__gs, 7) != -1) \ + { \ + asm ("movw %w0, %%gs" : : "q" (__gs)); \ + __gs = 0; \ + } \ + __gs; \ + }) + + +/* Return the address of the dtv for the current thread. */ +# define THREAD_DTV() \ + ({ struct _pthread_descr_struct *__descr; \ + THREAD_GETMEM (__descr, p_header.data.dtvp); }) + +# endif /* FLOATING_STACKS && HAVE_TLS_SUPPORT */ +#endif /* __ASSEMBLER__ */ + +#endif /* tls.h */ diff --git a/libpthread/linuxthreads.old/sysdeps/i386/useldt.h b/libpthread/linuxthreads.old/sysdeps/i386/useldt.h new file mode 100644 index 000000000..16aee9989 --- /dev/null +++ b/libpthread/linuxthreads.old/sysdeps/i386/useldt.h @@ -0,0 +1,307 @@ +/* Special definitions for ix86 machine using segment register based + thread descriptor. + Copyright (C) 1998, 2000, 2001, 2002 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Ulrich Drepper <drepper@cygnus.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; see the file COPYING.LIB. If not, + write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, + Boston, MA 02111-1307, USA. */ + +#ifndef __ASSEMBLER__ +#include <stddef.h> /* For offsetof. */ +#include <stdlib.h> /* For abort(). */ + + +/* We don't want to include the kernel header. So duplicate the + information. */ + +/* Structure passed on `modify_ldt' call. */ +struct modify_ldt_ldt_s +{ + unsigned int entry_number; + unsigned long int base_addr; + unsigned int limit; + unsigned int seg_32bit:1; + unsigned int contents:2; + unsigned int read_exec_only:1; + unsigned int limit_in_pages:1; + unsigned int seg_not_present:1; + unsigned int useable:1; + unsigned int empty:25; +}; + +/* System call to set LDT entry. */ +extern int __modify_ldt (int, struct modify_ldt_ldt_s *, size_t); + + +/* Return the thread descriptor for the current thread. + + The contained asm must *not* be marked volatile since otherwise + assignments like + pthread_descr self = thread_self(); + do not get optimized away. */ +#define THREAD_SELF \ +({ \ + register pthread_descr __self; \ + __asm__ ("movl %%gs:%c1,%0" : "=r" (__self) \ + : "i" (offsetof (struct _pthread_descr_struct, \ + p_header.data.self))); \ + __self; \ +}) + + +/* Initialize the thread-unique value. Two possible ways to do it. */ + +#define DO_MODIFY_LDT(descr, nr) \ +({ \ + struct modify_ldt_ldt_s ldt_entry = \ + { nr, (unsigned long int) (descr), 0xfffff /* 4GB in pages */, \ + 1, 0, 0, 1, 0, 1, 0 }; \ + if (__modify_ldt (1, &ldt_entry, sizeof (ldt_entry)) != 0) \ + abort (); \ + asm ("movw %w0, %%gs" : : "q" (nr * 8 + 7)); \ +}) + +#ifdef __PIC__ +# define USETLS_EBX_ARG "r" +# define USETLS_LOAD_EBX "xchgl %3, %%ebx\n\t" +#else +# define USETLS_EBX_ARG "b" +# define USETLS_LOAD_EBX +#endif + +/* When using the new set_thread_area call, we don't need to change %gs + because we inherited the value set up in the main thread by TLS setup. + We need to extract that value and set up the same segment in this + thread. */ +#if USE_TLS +# define DO_SET_THREAD_AREA_REUSE(nr) 1 +#else +/* Without TLS, we do the initialization of the main thread, where NR == 0. */ +# define DO_SET_THREAD_AREA_REUSE(nr) (!__builtin_constant_p (nr) || (nr)) +#endif +#define DO_SET_THREAD_AREA(descr, nr) \ +({ \ + int __gs; \ + if (DO_SET_THREAD_AREA_REUSE (nr)) \ + { \ + asm ("movw %%gs, %w0" : "=q" (__gs)); \ + struct modify_ldt_ldt_s ldt_entry = \ + { (__gs & 0xffff) >> 3, \ + (unsigned long int) (descr), 0xfffff /* 4GB in pages */, \ + 1, 0, 0, 1, 0, 1, 0 }; \ + \ + int __result; \ + __asm (USETLS_LOAD_EBX \ + "movl %2, %%eax\n\t" \ + "int $0x80\n\t" \ + USETLS_LOAD_EBX \ + : "&a" (__result) \ + : USETLS_EBX_ARG (&ldt_entry), "i" (__NR_set_thread_area)); \ + if (__result == 0) \ + asm ("movw %w0, %%gs" :: "q" (__gs)); \ + else \ + __gs = -1; \ + } \ + else \ + { \ + struct modify_ldt_ldt_s ldt_entry = \ + { -1, \ + (unsigned long int) (descr), 0xfffff /* 4GB in pages */, \ + 1, 0, 0, 1, 0, 1, 0 }; \ + int __result; \ + __asm (USETLS_LOAD_EBX \ + "movl %2, %%eax\n\t" \ + "int $0x80\n\t" \ + USETLS_LOAD_EBX \ + : "&a" (__result) \ + : USETLS_EBX_ARG (&ldt_entry), "i" (__NR_set_thread_area)); \ + if (__result == 0) \ + { \ + __gs = (ldt_entry.entry_number << 3) + 3; \ + asm ("movw %w0, %%gs" : : "q" (__gs)); \ + } \ + else \ + __gs = -1; \ + } \ + __gs; \ +}) + +#if defined __ASSUME_SET_THREAD_AREA_SYSCALL +# define INIT_THREAD_SELF(descr, nr) DO_SET_THREAD_AREA (descr, nr) +#elif defined __NR_set_thread_area +# define INIT_THREAD_SELF(descr, nr) \ +({ \ + if (__builtin_expect (__have_no_set_thread_area, 0) \ + || (DO_SET_THREAD_AREA (descr, DO_SET_THREAD_AREA_REUSE (nr)) == -1 \ + && (__have_no_set_thread_area = 1))) \ + DO_MODIFY_LDT (descr, nr); \ +}) +/* Defined in pspinlock.c. */ +extern int __have_no_set_thread_area; +#else +# define INIT_THREAD_SELF(descr, nr) DO_MODIFY_LDT (descr, nr) +#endif + +/* Free resources associated with thread descriptor. */ +#ifdef __ASSUME_SET_THREAD_AREA_SYSCALL +#define FREE_THREAD(descr, nr) do { } while (0) +#elif defined __NR_set_thread_area +#define FREE_THREAD(descr, nr) \ +{ \ + int __gs; \ + __asm__ __volatile__ ("movw %%gs, %w0" : "=q" (__gs)); \ + if (__builtin_expect (__gs & 4, 0)) \ + { \ + struct modify_ldt_ldt_s ldt_entry = \ + { nr, 0, 0, 0, 0, 1, 0, 1, 0, 0 }; \ + __modify_ldt (1, &ldt_entry, sizeof (ldt_entry)); \ + } \ +} +#else +#define FREE_THREAD(descr, nr) \ +{ \ + struct modify_ldt_ldt_s ldt_entry = \ + { nr, 0, 0, 0, 0, 1, 0, 1, 0, 0 }; \ + __modify_ldt (1, &ldt_entry, sizeof (ldt_entry)); \ +} +#endif + +/* Read member of the thread descriptor directly. */ +#define THREAD_GETMEM(descr, member) \ +({ \ + __typeof__ (descr->member) __value; \ + if (sizeof (__value) == 1) \ + __asm__ __volatile__ ("movb %%gs:%P2,%b0" \ + : "=q" (__value) \ + : "0" (0), \ + "i" (offsetof (struct _pthread_descr_struct, \ + member))); \ + else if (sizeof (__value) == 4) \ + __asm__ __volatile__ ("movl %%gs:%P1,%0" \ + : "=r" (__value) \ + : "i" (offsetof (struct _pthread_descr_struct, \ + member))); \ + else \ + { \ + if (sizeof (__value) != 8) \ + /* There should not be any value with a size other than 1, 4 or 8. */\ + abort (); \ + \ + __asm__ __volatile__ ("movl %%gs:%P1,%%eax\n\t" \ + "movl %%gs:%P2,%%edx" \ + : "=A" (__value) \ + : "i" (offsetof (struct _pthread_descr_struct, \ + member)), \ + "i" (offsetof (struct _pthread_descr_struct, \ + member) + 4)); \ + } \ + __value; \ +}) + +/* Same as THREAD_GETMEM, but the member offset can be non-constant. */ +#define THREAD_GETMEM_NC(descr, member) \ +({ \ + __typeof__ (descr->member) __value; \ + if (sizeof (__value) == 1) \ + __asm__ __volatile__ ("movb %%gs:(%2),%b0" \ + : "=q" (__value) \ + : "0" (0), \ + "r" (offsetof (struct _pthread_descr_struct, \ + member))); \ + else if (sizeof (__value) == 4) \ + __asm__ __volatile__ ("movl %%gs:(%1),%0" \ + : "=r" (__value) \ + : "r" (offsetof (struct _pthread_descr_struct, \ + member))); \ + else \ + { \ + if (sizeof (__value) != 8) \ + /* There should not be any value with a size other than 1, 4 or 8. */\ + abort (); \ + \ + __asm__ __volatile__ ("movl %%gs:(%1),%%eax\n\t" \ + "movl %%gs:4(%1),%%edx" \ + : "=&A" (__value) \ + : "r" (offsetof (struct _pthread_descr_struct, \ + member))); \ + } \ + __value; \ +}) + +/* Same as THREAD_SETMEM, but the member offset can be non-constant. */ +#define THREAD_SETMEM(descr, member, value) \ +({ \ + __typeof__ (descr->member) __value = (value); \ + if (sizeof (__value) == 1) \ + __asm__ __volatile__ ("movb %0,%%gs:%P1" : \ + : "q" (__value), \ + "i" (offsetof (struct _pthread_descr_struct, \ + member))); \ + else if (sizeof (__value) == 4) \ + __asm__ __volatile__ ("movl %0,%%gs:%P1" : \ + : "r" (__value), \ + "i" (offsetof (struct _pthread_descr_struct, \ + member))); \ + else \ + { \ + if (sizeof (__value) != 8) \ + /* There should not be any value with a size other than 1, 4 or 8. */\ + abort (); \ + \ + __asm__ __volatile__ ("movl %%eax,%%gs:%P1\n\n" \ + "movl %%edx,%%gs:%P2" : \ + : "A" (__value), \ + "i" (offsetof (struct _pthread_descr_struct, \ + member)), \ + "i" (offsetof (struct _pthread_descr_struct, \ + member) + 4)); \ + } \ +}) + +/* Set member of the thread descriptor directly. */ +#define THREAD_SETMEM_NC(descr, member, value) \ +({ \ + __typeof__ (descr->member) __value = (value); \ + if (sizeof (__value) == 1) \ + __asm__ __volatile__ ("movb %0,%%gs:(%1)" : \ + : "q" (__value), \ + "r" (offsetof (struct _pthread_descr_struct, \ + member))); \ + else if (sizeof (__value) == 4) \ + __asm__ __volatile__ ("movl %0,%%gs:(%1)" : \ + : "r" (__value), \ + "r" (offsetof (struct _pthread_descr_struct, \ + member))); \ + else \ + { \ + if (sizeof (__value) != 8) \ + /* There should not be any value with a size other than 1, 4 or 8. */\ + abort (); \ + \ + __asm__ __volatile__ ("movl %%eax,%%gs:(%1)\n\t" \ + "movl %%edx,%%gs:4(%1)" : \ + : "A" (__value), \ + "r" (offsetof (struct _pthread_descr_struct, \ + member))); \ + } \ +}) +#endif + +/* 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 diff --git a/libpthread/linuxthreads.old/sysdeps/m68k/pt-machine.h b/libpthread/linuxthreads.old/sysdeps/m68k/pt-machine.h new file mode 100644 index 000000000..4670ae3c4 --- /dev/null +++ b/libpthread/linuxthreads.old/sysdeps/m68k/pt-machine.h @@ -0,0 +1,76 @@ +/* Machine-dependent pthreads configuration and inline functions. + m68k version. + Copyright (C) 1996, 1998, 2000, 2002, 2003 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Richard Henderson <rth@tamu.edu>. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public License as + published by the Free Software Foundation; either version 2.1 of the + License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; see the file COPYING.LIB. If + not, write to the Free Software Foundation, Inc., + 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +#ifndef _PT_MACHINE_H +#define _PT_MACHINE_H 1 + +#ifndef PT_EI +# define PT_EI extern inline __attribute__ ((always_inline)) +#endif + +extern long int testandset (int *spinlock); +extern int __compare_and_swap (long int *p, long int oldval, long int newval); + +/* Spinlock implementation; required. */ +PT_EI long int +testandset (int *spinlock) +{ + char ret; + + __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"); + + return ret; +} + + +/* Get some notion of the current stack. Need not be exactly the top + of the stack, just something somewhere in the current frame. */ +#define CURRENT_STACK_FRAME stack_pointer +register char * stack_pointer __asm__ ("%sp"); + + +/* Compare-and-swap for semaphores. */ + +#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) +{ + char ret; + long int readval; + + __asm__ __volatile__ ("casl %2, %3, %1; seq %0" + : "=dm" (ret), "=m" (*p), "=d" (readval) + : "d" (newval), "m" (*p), "2" (oldval)); + + return ret; +} +#endif + +#endif /* pt-machine.h */ diff --git a/libpthread/linuxthreads.old/sysdeps/mips/pt-machine.h b/libpthread/linuxthreads.old/sysdeps/mips/pt-machine.h new file mode 100644 index 000000000..f7efc881d --- /dev/null +++ b/libpthread/linuxthreads.old/sysdeps/mips/pt-machine.h @@ -0,0 +1,110 @@ +/* Machine-dependent pthreads configuration and inline functions. + + Copyright (C) 1996, 1997, 1998, 2000, 2002, 2003, 2004 + Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Ralf Baechle <ralf@gnu.org>. + Based on the Alpha version by Richard Henderson <rth@tamu.edu>. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU 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, write to the Free Software Foundation, Inc., + 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +#ifndef _PT_MACHINE_H +#define _PT_MACHINE_H 1 + +#include <features.h> + +/* Copyright (C) 2000, 2002 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Maciej W. Rozycki <macro@ds2.pg.gda.pl>, 2000. */ +static inline int +_test_and_set (int *p, int v) __THROW +{ + int r, t; + + __asm__ __volatile__ + ("/* Inline test and set */\n" + "1:\n\t" + ".set push\n\t" + ".set mips2\n\t" + "ll %0,%3\n\t" + "move %1,%4\n\t" + "beq %0,%4,2f\n\t" + "sc %1,%2\n\t" + ".set pop\n\t" + "beqz %1,1b\n" + "2:\n\t" + "/* End test and set */" + : "=&r" (r), "=&r" (t), "=m" (*p) + : "m" (*p), "r" (v) + : "memory"); + + return r; +} + + +#ifndef PT_EI +# define PT_EI extern inline __attribute__ ((always_inline)) +#endif + +extern long int testandset (int *spinlock); +extern int __compare_and_swap (long int *p, long int oldval, long int newval); + + +/* Spinlock implementation; required. */ + +PT_EI long int +testandset (int *spinlock) +{ + return _test_and_set (spinlock, 1); +} + + +/* Get some notion of the current stack. Need not be exactly the top + of the stack, just something somewhere in the current frame. */ +#define CURRENT_STACK_FRAME stack_pointer +register char * stack_pointer __asm__ ("$29"); + + +/* Compare-and-swap for semaphores. */ + +#define HAS_COMPARE_AND_SWAP +PT_EI int +__compare_and_swap (long int *p, long int oldval, long int newval) +{ + long int ret, temp; + + __asm__ __volatile__ + ("/* Inline compare & swap */\n" + "1:\n\t" + ".set push\n\t" + ".set mips2\n\t" + "ll %1,%5\n\t" + "move %0,$0\n\t" + "bne %1,%3,2f\n\t" + "move %0,%4\n\t" + "sc %0,%2\n\t" + ".set pop\n\t" + "beqz %0,1b\n" + "2:\n\t" + "/* End compare & swap */" + : "=&r" (ret), "=&r" (temp), "=m" (*p) + : "r" (oldval), "r" (newval), "m" (*p) + : "memory"); + + return ret; +} + +#endif /* pt-machine.h */ diff --git a/libpthread/linuxthreads.old/sysdeps/nios/pt-machine.h b/libpthread/linuxthreads.old/sysdeps/nios/pt-machine.h new file mode 100644 index 000000000..5d82b8d16 --- /dev/null +++ b/libpthread/linuxthreads.old/sysdeps/nios/pt-machine.h @@ -0,0 +1,67 @@ +/* Machine-dependent pthreads configuration and inline functions. + ARM version. + Copyright (C) 1997, 1998 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Philip Blundell <philb@gnu.org>. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public License as + published by the Free Software Foundation; either version 2 of the + License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If not, + write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, + Boston, MA 02111-1307, USA. */ + +#ifndef _PT_MACHINE_H +#define _PT_MACHINE_H 1 + +#ifndef PT_EI +# define PT_EI extern inline +#endif + +extern long int testandset (int *spinlock); +/* Spinlock implementation; required. */ +/* it is weird and dangerous to disable interrupt in userspace, but for nios + what else we can do before we have a swap like instruction? This is better + than nothing + */ +PT_EI long int +testandset (int *spinlock) +{ + unsigned int ret; + + __asm__ __volatile__("pfx 8\n\t" + "wrctl %1 ; disable interrupt\n\t" + "nop\n\t" + "nop\n\t" + "ld %0, [%2]\n\t" + "st [%2], %1\n\t" + "pfx 9\n\t" + "wrctl %1 ; enable interrupt\n\t" + "nop\n\t" + "nop\n\t" + : "=&r"(ret) + : "r"(1), "r"(spinlock) + : "memory"); + + return ret; +} + + +/* Get some notion of the current stack. Need not be exactly the top + of the stack, just something somewhere in the current frame. */ +#define CURRENT_STACK_FRAME stack_pointer +register char * stack_pointer __asm__ ("%sp"); + +/* nios needs more because of reg windows */ +#define THREAD_MANAGER_STACK_SIZE (32*1024) +#define STACK_SIZE (32*1024) + +#endif /* pt-machine.h */ diff --git a/libpthread/linuxthreads.old/sysdeps/nios2/pt-machine.h b/libpthread/linuxthreads.old/sysdeps/nios2/pt-machine.h new file mode 100644 index 000000000..484a77e14 --- /dev/null +++ b/libpthread/linuxthreads.old/sysdeps/nios2/pt-machine.h @@ -0,0 +1,58 @@ +/* Machine-dependent pthreads configuration and inline functions. + nios2 version. + Copyright (C) 1996, 1998, 2000, 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 2.1 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, write to the Free Software Foundation, Inc., + 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +#ifndef _PT_MACHINE_H +#define _PT_MACHINE_H 1 + +#ifndef PT_EI +# define PT_EI extern inline +#endif + +extern long int testandset (int *spinlock); + +/* Spinlock implementation; required. */ +PT_EI long int +testandset (int *spinlock) +{ + unsigned int scratch; + long int ret=-2; + + __asm__ __volatile__( + "rdctl %0, status\n\t" + "and %0, %0, %1\n\t" + "wrctl status, %0 #disable interrupts\n\t" + "ldw %1, 0(%4)\n\t" + "stw %3, 0(%4)\n\t" + "ori %0, %0, 1\n\t" + "wrctl status, %0 #enable interrupts\n\t" + : "=&r"(scratch), "=r"(ret) + : "1"(ret), "r"(1), "r"(spinlock) + : "memory"); + + return ret; +} + + +/* Get some notion of the current stack. Need not be exactly the top + of the stack, just something somewhere in the current frame. */ +#define CURRENT_STACK_FRAME stack_pointer +register char * stack_pointer __asm__ ("%sp"); + +#endif /* pt-machine.h */ diff --git a/libpthread/linuxthreads.old/sysdeps/powerpc/pt-machine.h b/libpthread/linuxthreads.old/sysdeps/powerpc/pt-machine.h new file mode 100644 index 000000000..9e6543a26 --- /dev/null +++ b/libpthread/linuxthreads.old/sysdeps/powerpc/pt-machine.h @@ -0,0 +1,103 @@ +/* Machine-dependent pthreads configuration and inline functions. + powerpc version. + Copyright (C) 1996, 1997, 1998, 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 2.1 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, write to the Free Software Foundation, Inc., + 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +/* These routines are from Appendix G of the 'PowerPC 601 RISC Microprocessor + User's Manual', by IBM and Motorola. */ + +#ifndef _PT_MACHINE_H +#define _PT_MACHINE_H 1 + +#ifndef PT_EI +# define PT_EI extern 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__ ("sync" : : : "memory") + +/* Get some notion of the current stack. Need not be exactly the top + of the stack, just something somewhere in the current frame. */ +#define CURRENT_STACK_FRAME stack_pointer +register char * stack_pointer __asm__ ("r1"); + +/* Register r2 (tp) is reserved by the ABI as "thread pointer". */ +struct _pthread_descr_struct; +register struct _pthread_descr_struct *__thread_self __asm__("r2"); + +/* Return the thread descriptor for the current thread. */ +#define THREAD_SELF __thread_self + +/* Initialize the thread-unique value. */ +#define INIT_THREAD_SELF(descr, nr) (__thread_self = (descr)) + +/* Compare-and-swap for semaphores. */ +/* note that test-and-set(x) is the same as !compare-and-swap(x, 0, 1) */ + +#define HAS_COMPARE_AND_SWAP_WITH_RELEASE_SEMANTICS +#define IMPLEMENT_TAS_WITH_CAS + +PT_EI int +__compare_and_swap (long int *p, long int oldval, long int newval) +{ + int ret; + + __asm__ __volatile__ ( + "0: lwarx %0,0,%1 ;" + " xor. %0,%3,%0;" + " bne 1f;" + " stwcx. %2,0,%1;" + " bne- 0b;" + "1: " + : "=&r"(ret) + : "r"(p), "r"(newval), "r"(oldval) + : "cr0", "memory"); + /* This version of __compare_and_swap is to be used when acquiring + a lock, so we don't need to worry about whether other memory + operations have completed, but we do need to be sure that any loads + after this point really occur after we have acquired the lock. */ + __asm__ __volatile__ ("isync" : : : "memory"); + return ret == 0; +} + +PT_EI int +__compare_and_swap_with_release_semantics (long int *p, + long int oldval, long int newval) +{ + int ret; + + MEMORY_BARRIER (); + __asm__ __volatile__ ( + "0: lwarx %0,0,%1 ;" + " xor. %0,%3,%0;" + " bne 1f;" + " stwcx. %2,0,%1;" + " bne- 0b;" + "1: " + : "=&r"(ret) + : "r"(p), "r"(newval), "r"(oldval) + : "cr0", "memory"); + return ret == 0; +} + +#endif /* pt-machine.h */ diff --git a/libpthread/linuxthreads.old/sysdeps/pthread/bits/libc-lock.h b/libpthread/linuxthreads.old/sysdeps/pthread/bits/libc-lock.h new file mode 100644 index 000000000..e2b267d32 --- /dev/null +++ b/libpthread/linuxthreads.old/sysdeps/pthread/bits/libc-lock.h @@ -0,0 +1,328 @@ +/* libc-internal interface for mutex locks. LinuxThreads version. + Copyright (C) 1996,1997,1998,1999,2000,2001,2002,2003 + Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + 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, + write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, + Boston, MA 02111-1307, USA. */ + +#ifndef _BITS_LIBC_LOCK_H +#define _BITS_LIBC_LOCK_H 1 + +#include <pthread.h> + +/* Mutex type. */ +#if defined(_LIBC) || defined(_IO_MTSAFE_IO) +typedef pthread_mutex_t __libc_lock_t; +typedef struct { pthread_mutex_t mutex; } __libc_lock_recursive_t; +# ifdef __USE_UNIX98 +typedef pthread_rwlock_t __libc_rwlock_t; +# else +typedef struct __libc_rwlock_opaque__ __libc_rwlock_t; +# endif +#else +typedef struct __libc_lock_opaque__ __libc_lock_t; +typedef struct __libc_lock_recursive_opaque__ __libc_lock_recursive_t; +typedef struct __libc_rwlock_opaque__ __libc_rwlock_t; +#endif + +/* Type for key to thread-specific data. */ +typedef pthread_key_t __libc_key_t; + +/* Define a lock variable NAME with storage class CLASS. The lock must be + initialized with __libc_lock_init before it can be used (or define it + with __libc_lock_define_initialized, below). Use `extern' for CLASS to + declare a lock defined in another module. In public structure + definitions you must use a pointer to the lock structure (i.e., NAME + begins with a `*'), because its storage size will not be known outside + of libc. */ +#define __libc_lock_define(CLASS,NAME) \ + CLASS __libc_lock_t NAME; +#define __libc_rwlock_define(CLASS,NAME) \ + CLASS __libc_rwlock_t NAME; +#define __libc_lock_define_recursive(CLASS,NAME) \ + CLASS __libc_lock_recursive_t NAME; + +/* Define an initialized lock variable NAME with storage class CLASS. + + For the C library we take a deeper look at the initializer. For + this implementation all fields are initialized to zero. Therefore + we don't initialize the variable which allows putting it into the + BSS section. (Except on PA-RISC and other odd architectures, where + initialized locks must be set to one due to the lack of normal + atomic operations.) */ + +#if __LT_SPINLOCK_INIT == 0 +# define __libc_lock_define_initialized(CLASS,NAME) \ + CLASS __libc_lock_t NAME; +#else +# define __libc_lock_define_initialized(CLASS,NAME) \ + CLASS __libc_lock_t NAME = PTHREAD_MUTEX_INITIALIZER; +#endif + +#define __libc_rwlock_define_initialized(CLASS,NAME) \ + CLASS __libc_rwlock_t NAME = PTHREAD_RWLOCK_INITIALIZER; + +/* Define an initialized recursive lock variable NAME with storage + class CLASS. */ +#define __libc_lock_define_initialized_recursive(CLASS,NAME) \ + CLASS __libc_lock_recursive_t NAME = _LIBC_LOCK_RECURSIVE_INITIALIZER; +#define _LIBC_LOCK_RECURSIVE_INITIALIZER \ + {PTHREAD_RECURSIVE_MUTEX_INITIALIZER_NP} + +/* Initialize the named lock variable, leaving it in a consistent, unlocked + state. */ +#define __libc_lock_init(NAME) \ + (__pthread_mutex_init != NULL ? __pthread_mutex_init (&(NAME), NULL) : 0); +#define __libc_rwlock_init(NAME) \ + (__pthread_rwlock_init != NULL ? __pthread_rwlock_init (&(NAME), NULL) : 0); + +/* Same as last but this time we initialize a recursive mutex. */ +#define __libc_lock_init_recursive(NAME) \ + do { \ + if (__pthread_mutex_init != NULL) \ + { \ + pthread_mutexattr_t __attr; \ + __pthread_mutexattr_init (&__attr); \ + __pthread_mutexattr_settype (&__attr, PTHREAD_MUTEX_RECURSIVE_NP); \ + __pthread_mutex_init (&(NAME).mutex, &__attr); \ + __pthread_mutexattr_destroy (&__attr); \ + } \ + } while (0); + +/* Finalize the named lock variable, which must be locked. It cannot be + used again until __libc_lock_init is called again on it. This must be + called on a lock variable before the containing storage is reused. */ +#define __libc_lock_fini(NAME) \ + (__pthread_mutex_destroy != NULL ? __pthread_mutex_destroy (&(NAME)) : 0); +#define __libc_rwlock_fini(NAME) \ + (__pthread_rwlock_destroy != NULL ? __pthread_rwlock_destroy (&(NAME)) : 0); + +/* Finalize recursive named lock. */ +#define __libc_lock_fini_recursive(NAME) __libc_lock_fini ((NAME).mutex) + +/* Lock the named lock variable. */ +#define __libc_lock_lock(NAME) \ + (__pthread_mutex_lock != NULL ? __pthread_mutex_lock (&(NAME)) : 0); +#define __libc_rwlock_rdlock(NAME) \ + (__pthread_rwlock_rdlock != NULL ? __pthread_rwlock_rdlock (&(NAME)) : 0); +#define __libc_rwlock_wrlock(NAME) \ + (__pthread_rwlock_wrlock != NULL ? __pthread_rwlock_wrlock (&(NAME)) : 0); + +/* Lock the recursive named lock variable. */ +#define __libc_lock_lock_recursive(NAME) __libc_lock_lock ((NAME).mutex) + +/* Try to lock the named lock variable. */ +#define __libc_lock_trylock(NAME) \ + (__pthread_mutex_trylock != NULL ? __pthread_mutex_trylock (&(NAME)) : 0) +#define __libc_rwlock_tryrdlock(NAME) \ + (__pthread_rwlock_tryrdlock != NULL \ + ? __pthread_rwlock_tryrdlock (&(NAME)) : 0) +#define __libc_rwlock_trywrlock(NAME) \ + (__pthread_rwlock_trywrlock != NULL \ + ? __pthread_rwlock_trywrlock (&(NAME)) : 0) + +/* Try to lock the recursive named lock variable. */ +#define __libc_lock_trylock_recursive(NAME) __libc_lock_trylock ((NAME).mutex) + +/* Unlock the named lock variable. */ +#define __libc_lock_unlock(NAME) \ + (__pthread_mutex_unlock != NULL ? __pthread_mutex_unlock (&(NAME)) : 0); +#define __libc_rwlock_unlock(NAME) \ + (__pthread_rwlock_unlock != NULL ? __pthread_rwlock_unlock (&(NAME)) : 0); + +/* Unlock the recursive named lock variable. */ +#define __libc_lock_unlock_recursive(NAME) __libc_lock_unlock ((NAME).mutex) + + +/* Define once control variable. */ +#if PTHREAD_ONCE_INIT == 0 +/* Special case for static variables where we can avoid the initialization + if it is zero. */ +# define __libc_once_define(CLASS, NAME) \ + CLASS pthread_once_t NAME +#else +# define __libc_once_define(CLASS, NAME) \ + CLASS pthread_once_t NAME = PTHREAD_ONCE_INIT +#endif + +/* Call handler iff the first call. */ +#define __libc_once(ONCE_CONTROL, INIT_FUNCTION) \ + do { \ + if (__pthread_once != NULL) \ + __pthread_once (&(ONCE_CONTROL), (INIT_FUNCTION)); \ + else if ((ONCE_CONTROL) == PTHREAD_ONCE_INIT) { \ + INIT_FUNCTION (); \ + (ONCE_CONTROL) = !PTHREAD_ONCE_INIT; \ + } \ + } while (0) + + +/* Start critical region with cleanup. */ +#define __libc_cleanup_region_start(DOIT, FCT, ARG) \ + { struct _pthread_cleanup_buffer _buffer; \ + int _avail = (DOIT) && _pthread_cleanup_push_defer != NULL; \ + if (_avail) { \ + _pthread_cleanup_push_defer (&_buffer, (FCT), (ARG)); \ + } + +/* End critical region with cleanup. */ +#define __libc_cleanup_region_end(DOIT) \ + if (_avail) { \ + _pthread_cleanup_pop_restore (&_buffer, (DOIT)); \ + } \ + } + +/* Sometimes we have to exit the block in the middle. */ +#define __libc_cleanup_end(DOIT) \ + if (_avail) { \ + _pthread_cleanup_pop_restore (&_buffer, (DOIT)); \ + } + +/* Create thread-specific key. */ +#define __libc_key_create(KEY, DESTRUCTOR) \ + (__pthread_key_create != NULL ? __pthread_key_create (KEY, DESTRUCTOR) : 1) + +/* Get thread-specific data. */ +#define __libc_getspecific(KEY) \ + (__pthread_getspecific != NULL ? __pthread_getspecific (KEY) : NULL) + +/* Set thread-specific data. */ +#define __libc_setspecific(KEY, VALUE) \ + (__pthread_setspecific != NULL ? __pthread_setspecific (KEY, VALUE) : 0) + + +/* Register handlers to execute before and after `fork'. */ +#define __libc_atfork(PREPARE, PARENT, CHILD) \ + (__pthread_atfork != NULL ? __pthread_atfork (PREPARE, PARENT, CHILD) : 0) + +/* Functions that are used by this file and are internal to the GNU C + library. */ + +extern int __pthread_mutex_init (pthread_mutex_t *__mutex, + __const pthread_mutexattr_t *__mutex_attr); + +extern int __pthread_mutex_destroy (pthread_mutex_t *__mutex); + +extern int __pthread_mutex_trylock (pthread_mutex_t *__mutex); + +extern int __pthread_mutex_lock (pthread_mutex_t *__mutex); + +extern int __pthread_mutex_unlock (pthread_mutex_t *__mutex); + +extern int __pthread_mutexattr_init (pthread_mutexattr_t *__attr); + +extern int __pthread_mutexattr_destroy (pthread_mutexattr_t *__attr); + +extern int __pthread_mutexattr_settype (pthread_mutexattr_t *__attr, + int __kind); + +#ifdef __USE_UNIX98 +extern int __pthread_rwlock_init (pthread_rwlock_t *__rwlock, + __const pthread_rwlockattr_t *__attr); + +extern int __pthread_rwlock_destroy (pthread_rwlock_t *__rwlock); + +extern int __pthread_rwlock_rdlock (pthread_rwlock_t *__rwlock); + +extern int __pthread_rwlock_tryrdlock (pthread_rwlock_t *__rwlock); + +extern int __pthread_rwlock_wrlock (pthread_rwlock_t *__rwlock); + +extern int __pthread_rwlock_trywrlock (pthread_rwlock_t *__rwlock); + +extern int __pthread_rwlock_unlock (pthread_rwlock_t *__rwlock); +#endif + +extern int __pthread_key_create (pthread_key_t *__key, + void (*__destr_function) (void *)); + +extern int __pthread_setspecific (pthread_key_t __key, + __const void *__pointer); + +extern void *__pthread_getspecific (pthread_key_t __key); + +extern int __pthread_once (pthread_once_t *__once_control, + void (*__init_routine) (void)); + +extern int __pthread_atfork (void (*__prepare) (void), + void (*__parent) (void), + void (*__child) (void)); + + + +/* Make the pthread functions weak so that we can elide them from + single-threaded processes. */ +#ifndef __NO_WEAK_PTHREAD_ALIASES +# ifdef weak_extern +# if _LIBC +# include <bp-sym.h> +# else +# define BP_SYM (sym) sym +# endif +weak_extern (BP_SYM (__pthread_mutex_init)) +weak_extern (BP_SYM (__pthread_mutex_destroy)) +weak_extern (BP_SYM (__pthread_mutex_lock)) +weak_extern (BP_SYM (__pthread_mutex_trylock)) +weak_extern (BP_SYM (__pthread_mutex_unlock)) +weak_extern (BP_SYM (__pthread_mutexattr_init)) +weak_extern (BP_SYM (__pthread_mutexattr_destroy)) +weak_extern (BP_SYM (__pthread_mutexattr_settype)) +weak_extern (BP_SYM (__pthread_rwlock_init)) +weak_extern (BP_SYM (__pthread_rwlock_destroy)) +weak_extern (BP_SYM (__pthread_rwlock_rdlock)) +weak_extern (BP_SYM (__pthread_rwlock_tryrdlock)) +weak_extern (BP_SYM (__pthread_rwlock_wrlock)) +weak_extern (BP_SYM (__pthread_rwlock_trywrlock)) +weak_extern (BP_SYM (__pthread_rwlock_unlock)) +weak_extern (BP_SYM (__pthread_key_create)) +weak_extern (BP_SYM (__pthread_setspecific)) +weak_extern (BP_SYM (__pthread_getspecific)) +weak_extern (BP_SYM (__pthread_once)) +weak_extern (__pthread_initialize) +weak_extern (__pthread_atfork) +weak_extern (BP_SYM (_pthread_cleanup_push_defer)) +weak_extern (BP_SYM (_pthread_cleanup_pop_restore)) +# else +# pragma weak __pthread_mutex_init +# pragma weak __pthread_mutex_destroy +# pragma weak __pthread_mutex_lock +# pragma weak __pthread_mutex_trylock +# pragma weak __pthread_mutex_unlock +# pragma weak __pthread_mutexattr_init +# pragma weak __pthread_mutexattr_destroy +# pragma weak __pthread_mutexattr_settype +# pragma weak __pthread_rwlock_destroy +# pragma weak __pthread_rwlock_rdlock +# pragma weak __pthread_rwlock_tryrdlock +# pragma weak __pthread_rwlock_wrlock +# pragma weak __pthread_rwlock_trywrlock +# pragma weak __pthread_rwlock_unlock +# pragma weak __pthread_key_create +# pragma weak __pthread_setspecific +# pragma weak __pthread_getspecific +# pragma weak __pthread_once +# pragma weak __pthread_initialize +# pragma weak __pthread_atfork +# pragma weak _pthread_cleanup_push_defer +# pragma weak _pthread_cleanup_pop_restore +# endif +#endif + +/* We need portable names for some functions. E.g., when they are + used as argument to __libc_cleanup_region_start. */ +#define __libc_mutex_unlock __pthread_mutex_unlock + +#endif /* bits/libc-lock.h */ diff --git a/libpthread/linuxthreads.old/sysdeps/pthread/bits/libc-tsd.h b/libpthread/linuxthreads.old/sysdeps/pthread/bits/libc-tsd.h new file mode 100644 index 000000000..efd0c83be --- /dev/null +++ b/libpthread/linuxthreads.old/sysdeps/pthread/bits/libc-tsd.h @@ -0,0 +1,66 @@ +/* libc-internal interface for thread-specific data. LinuxThreads version. + Copyright (C) 1997-2002, 2003 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + 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, + write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, + Boston, MA 02111-1307, USA. */ + +#ifndef _BITS_LIBC_TSD_H +#define _BITS_LIBC_TSD_H 1 + +/* Fast thread-specific data internal to libc. */ +enum __libc_tsd_key_t { _LIBC_TSD_KEY_MALLOC = 0, + _LIBC_TSD_KEY_DL_ERROR, + _LIBC_TSD_KEY_RPC_VARS, + _LIBC_TSD_KEY_LOCALE, + _LIBC_TSD_KEY_CTYPE_B, + _LIBC_TSD_KEY_CTYPE_TOLOWER, + _LIBC_TSD_KEY_CTYPE_TOUPPER, + _LIBC_TSD_KEY_N }; + +#include <sys/cdefs.h> +#include <tls.h> + +#if USE_TLS && HAVE___THREAD + +/* When __thread works, the generic definition is what we want. */ +# include <sysdeps/generic/bits/libc-tsd.h> + +#else + +extern void *(*__libc_internal_tsd_get) (enum __libc_tsd_key_t) __THROW; +extern int (*__libc_internal_tsd_set) (enum __libc_tsd_key_t, + __const void *) __THROW; +extern void **(*const __libc_internal_tsd_address) (enum __libc_tsd_key_t) + __THROW __attribute__ ((__const__)); + +#define __libc_tsd_address(KEY) \ + (__libc_internal_tsd_address != NULL \ + ? __libc_internal_tsd_address (_LIBC_TSD_KEY_##KEY) \ + : &__libc_tsd_##KEY##_data) + +#define __libc_tsd_define(CLASS, KEY) CLASS void *__libc_tsd_##KEY##_data; +#define __libc_tsd_get(KEY) \ + (__libc_internal_tsd_get != NULL \ + ? __libc_internal_tsd_get (_LIBC_TSD_KEY_##KEY) \ + : __libc_tsd_##KEY##_data) +#define __libc_tsd_set(KEY, VALUE) \ + (__libc_internal_tsd_set != NULL \ + ? __libc_internal_tsd_set (_LIBC_TSD_KEY_##KEY, (VALUE)) \ + : ((__libc_tsd_##KEY##_data = (VALUE)), 0)) + +#endif + +#endif /* bits/libc-tsd.h */ diff --git a/libpthread/linuxthreads.old/sysdeps/pthread/bits/pthreadtypes.h b/libpthread/linuxthreads.old/sysdeps/pthread/bits/pthreadtypes.h new file mode 100644 index 000000000..faec63b06 --- /dev/null +++ b/libpthread/linuxthreads.old/sysdeps/pthread/bits/pthreadtypes.h @@ -0,0 +1,142 @@ +/* Linuxthreads - a simple clone()-based implementation of Posix */ +/* threads for Linux. */ +/* Copyright (C) 1996 Xavier Leroy (Xavier.Leroy@inria.fr) */ +/* */ +/* This program is free software; you can redistribute it and/or */ +/* modify it under the terms of the GNU Library General Public License */ +/* as published by the Free Software Foundation; either version 2 */ +/* of the License, or (at your option) any later version. */ +/* */ +/* This program is distributed in the hope that it will be useful, */ +/* but WITHOUT ANY WARRANTY; without even the implied warranty of */ +/* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the */ +/* GNU Library General Public License for more details. */ + +#if !defined _BITS_TYPES_H && !defined _PTHREAD_H +# error "Never include <bits/pthreadtypes.h> directly; use <sys/types.h> instead." +#endif + +#ifndef _BITS_PTHREADTYPES_H +#define _BITS_PTHREADTYPES_H 1 + +#define __need_schedparam +#include <bits/sched.h> + +/* Fast locks (not abstract because mutexes and conditions aren't abstract). */ +struct _pthread_fastlock +{ + long int __status; /* "Free" or "taken" or head of waiting list */ + int __spinlock; /* Used by compare_and_swap emulation. Also, + adaptive SMP lock stores spin count here. */ +}; + +#ifndef _PTHREAD_DESCR_DEFINED +/* Thread descriptors */ +typedef struct _pthread_descr_struct *_pthread_descr; +# define _PTHREAD_DESCR_DEFINED +#endif + + +/* Attributes for threads. */ +typedef struct __pthread_attr_s +{ + int __detachstate; + int __schedpolicy; + struct __sched_param __schedparam; + int __inheritsched; + int __scope; + size_t __guardsize; + int __stackaddr_set; + void *__stackaddr; + size_t __stacksize; +} pthread_attr_t; + + +/* Conditions (not abstract because of PTHREAD_COND_INITIALIZER */ +typedef struct +{ + struct _pthread_fastlock __c_lock; /* Protect against concurrent access */ + _pthread_descr __c_waiting; /* Threads waiting on this condition */ +} pthread_cond_t; + + +/* Attribute for conditionally variables. */ +typedef struct +{ + int __dummy; +} pthread_condattr_t; + +/* Keys for thread-specific data */ +typedef unsigned int pthread_key_t; + + +/* Mutexes (not abstract because of PTHREAD_MUTEX_INITIALIZER). */ +/* (The layout is unnatural to maintain binary compatibility + with earlier releases of LinuxThreads.) */ +typedef struct +{ + int __m_reserved; /* Reserved for future use */ + int __m_count; /* Depth of recursive locking */ + _pthread_descr __m_owner; /* Owner thread (if recursive or errcheck) */ + int __m_kind; /* Mutex kind: fast, recursive or errcheck */ + struct _pthread_fastlock __m_lock; /* Underlying fast lock */ +} pthread_mutex_t; + + +/* Attribute for mutex. */ +typedef struct +{ + int __mutexkind; +} pthread_mutexattr_t; + + +/* Once-only execution */ +typedef int pthread_once_t; + + +#if defined __USE_UNIX98 || defined __USE_XOPEN2K +/* Read-write locks. */ +typedef struct _pthread_rwlock_t +{ + struct _pthread_fastlock __rw_lock; /* Lock to guarantee mutual exclusion */ + int __rw_readers; /* Number of readers */ + _pthread_descr __rw_writer; /* Identity of writer, or NULL if none */ + _pthread_descr __rw_read_waiting; /* Threads waiting for reading */ + _pthread_descr __rw_write_waiting; /* Threads waiting for writing */ + int __rw_kind; /* Reader/Writer preference selection */ + int __rw_pshared; /* Shared between processes or not */ +} pthread_rwlock_t; + + +/* Attribute for read-write locks. */ +typedef struct +{ + int __lockkind; + int __pshared; +} pthread_rwlockattr_t; +#endif + +#ifdef __USE_XOPEN2K +/* POSIX spinlock data type. */ +typedef volatile int pthread_spinlock_t; + +/* POSIX barrier. */ +typedef struct { + struct _pthread_fastlock __ba_lock; /* Lock to guarantee mutual exclusion */ + int __ba_required; /* Threads needed for completion */ + int __ba_present; /* Threads waiting */ + _pthread_descr __ba_waiting; /* Queue of waiting threads */ +} pthread_barrier_t; + +/* barrier attribute */ +typedef struct { + int __pshared; +} pthread_barrierattr_t; + +#endif + + +/* Thread identifiers */ +typedef unsigned long int pthread_t; + +#endif /* bits/pthreadtypes.h */ diff --git a/libpthread/linuxthreads.old/sysdeps/pthread/pthread.h b/libpthread/linuxthreads.old/sysdeps/pthread/pthread.h new file mode 100644 index 000000000..6613cab88 --- /dev/null +++ b/libpthread/linuxthreads.old/sysdeps/pthread/pthread.h @@ -0,0 +1,705 @@ +/* Linuxthreads - a simple clone()-based implementation of Posix */ +/* threads for Linux. */ +/* Copyright (C) 1996 Xavier Leroy (Xavier.Leroy@inria.fr) */ +/* */ +/* This program is free software; you can redistribute it and/or */ +/* modify it under the terms of the GNU Library General Public License */ +/* as published by the Free Software Foundation; either version 2 */ +/* of the License, or (at your option) any later version. */ +/* */ +/* This program is distributed in the hope that it will be useful, */ +/* but WITHOUT ANY WARRANTY; without even the implied warranty of */ +/* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the */ +/* GNU Library General Public License for more details. */ + +#ifndef _PTHREAD_H +#define _PTHREAD_H 1 + +#include <features.h> + +#include <sched.h> +#include <time.h> + +#define __need_sigset_t +#include <signal.h> +#include <bits/pthreadtypes.h> +#include <bits/initspin.h> +#ifdef _LIBC +#include <bits/uClibc_pthread.h> +#endif + + +__BEGIN_DECLS + +/* Initializers. */ + +#define PTHREAD_MUTEX_INITIALIZER \ + {0, 0, 0, PTHREAD_MUTEX_ADAPTIVE_NP, __LOCK_INITIALIZER} +#ifdef __USE_GNU +# define PTHREAD_RECURSIVE_MUTEX_INITIALIZER_NP \ + {0, 0, 0, PTHREAD_MUTEX_RECURSIVE_NP, __LOCK_INITIALIZER} +# define PTHREAD_ERRORCHECK_MUTEX_INITIALIZER_NP \ + {0, 0, 0, PTHREAD_MUTEX_ERRORCHECK_NP, __LOCK_INITIALIZER} +# define PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP \ + {0, 0, 0, PTHREAD_MUTEX_ADAPTIVE_NP, __LOCK_INITIALIZER} +#endif + +#define PTHREAD_COND_INITIALIZER {__LOCK_INITIALIZER, 0} + +#if defined __USE_UNIX98 || defined __USE_XOPEN2K +# define PTHREAD_RWLOCK_INITIALIZER \ + { __LOCK_INITIALIZER, 0, NULL, NULL, NULL, \ + PTHREAD_RWLOCK_DEFAULT_NP, PTHREAD_PROCESS_PRIVATE } +#endif +#ifdef __USE_GNU +# define PTHREAD_RWLOCK_WRITER_NONRECURSIVE_INITIALIZER_NP \ + { __LOCK_INITIALIZER, 0, NULL, NULL, NULL, \ + PTHREAD_RWLOCK_PREFER_WRITER_NONRECURSIVE_NP, PTHREAD_PROCESS_PRIVATE } +#endif + +/* Values for attributes. */ + +enum +{ + PTHREAD_CREATE_JOINABLE, +#define PTHREAD_CREATE_JOINABLE PTHREAD_CREATE_JOINABLE + PTHREAD_CREATE_DETACHED +#define PTHREAD_CREATE_DETACHED PTHREAD_CREATE_DETACHED +}; + +enum +{ + PTHREAD_INHERIT_SCHED, +#define PTHREAD_INHERIT_SCHED PTHREAD_INHERIT_SCHED + PTHREAD_EXPLICIT_SCHED +#define PTHREAD_EXPLICIT_SCHED PTHREAD_EXPLICIT_SCHED +}; + +enum +{ + PTHREAD_SCOPE_SYSTEM, +#define PTHREAD_SCOPE_SYSTEM PTHREAD_SCOPE_SYSTEM + PTHREAD_SCOPE_PROCESS +#define PTHREAD_SCOPE_PROCESS PTHREAD_SCOPE_PROCESS +}; + +enum +{ + PTHREAD_MUTEX_ADAPTIVE_NP, + PTHREAD_MUTEX_RECURSIVE_NP, + PTHREAD_MUTEX_ERRORCHECK_NP, + PTHREAD_MUTEX_TIMED_NP +#ifdef __USE_UNIX98 + , + PTHREAD_MUTEX_NORMAL = PTHREAD_MUTEX_ADAPTIVE_NP, + PTHREAD_MUTEX_RECURSIVE = PTHREAD_MUTEX_RECURSIVE_NP, + PTHREAD_MUTEX_ERRORCHECK = PTHREAD_MUTEX_ERRORCHECK_NP, + PTHREAD_MUTEX_DEFAULT = PTHREAD_MUTEX_NORMAL +#endif +#ifdef __USE_GNU + /* For compatibility. */ + , PTHREAD_MUTEX_FAST_NP = PTHREAD_MUTEX_ADAPTIVE_NP +#endif +}; + +enum +{ + PTHREAD_PROCESS_PRIVATE, +#define PTHREAD_PROCESS_PRIVATE PTHREAD_PROCESS_PRIVATE + PTHREAD_PROCESS_SHARED +#define PTHREAD_PROCESS_SHARED PTHREAD_PROCESS_SHARED +}; + +#if defined __USE_UNIX98 || defined __USE_XOPEN2K +enum +{ + PTHREAD_RWLOCK_PREFER_READER_NP, + PTHREAD_RWLOCK_PREFER_WRITER_NP, + PTHREAD_RWLOCK_PREFER_WRITER_NONRECURSIVE_NP, + PTHREAD_RWLOCK_DEFAULT_NP = PTHREAD_RWLOCK_PREFER_WRITER_NP +}; +#endif /* Unix98 */ + +#define PTHREAD_ONCE_INIT 0 + +/* Special constants */ + +#ifdef __USE_XOPEN2K +/* -1 is distinct from 0 and all errno constants */ +# define PTHREAD_BARRIER_SERIAL_THREAD -1 +#endif + +/* Cleanup buffers */ + +struct _pthread_cleanup_buffer +{ + void (*__routine) (void *); /* Function to call. */ + void *__arg; /* Its argument. */ + int __canceltype; /* Saved cancellation type. */ + struct _pthread_cleanup_buffer *__prev; /* Chaining of cleanup functions. */ +}; + +/* Cancellation */ + +enum +{ + PTHREAD_CANCEL_ENABLE, +#define PTHREAD_CANCEL_ENABLE PTHREAD_CANCEL_ENABLE + PTHREAD_CANCEL_DISABLE +#define PTHREAD_CANCEL_DISABLE PTHREAD_CANCEL_DISABLE +}; +enum +{ + PTHREAD_CANCEL_DEFERRED, +#define PTHREAD_CANCEL_DEFERRED PTHREAD_CANCEL_DEFERRED + PTHREAD_CANCEL_ASYNCHRONOUS +#define PTHREAD_CANCEL_ASYNCHRONOUS PTHREAD_CANCEL_ASYNCHRONOUS +}; +#define PTHREAD_CANCELED ((void *) -1) + + +/* Function for handling threads. */ + +/* Create a thread with given attributes ATTR (or default attributes + if ATTR is NULL), and call function START_ROUTINE with given + arguments ARG. */ +extern int pthread_create (pthread_t *__restrict __threadp, + __const pthread_attr_t *__restrict __attr, + void *(*__start_routine) (void *), + void *__restrict __arg) __THROW; + +/* Obtain the identifier of the current thread. */ +extern pthread_t pthread_self (void) __THROW; + +/* Compare two thread identifiers. */ +extern int pthread_equal (pthread_t __thread1, pthread_t __thread2) __THROW; + +/* Terminate calling thread. */ +extern void pthread_exit (void *__retval) __attribute__ ((__noreturn__)); + +/* Make calling thread wait for termination of the thread TH. The + exit status of the thread is stored in *THREAD_RETURN, if THREAD_RETURN + is not NULL. */ +extern int pthread_join (pthread_t __th, void **__thread_return); + +/* Indicate that the thread TH is never to be joined with PTHREAD_JOIN. + The resources of TH will therefore be freed immediately when it + terminates, instead of waiting for another thread to perform PTHREAD_JOIN + on it. */ +extern int pthread_detach (pthread_t __th) __THROW; + + +/* Functions for handling attributes. */ + +/* Initialize thread attribute *ATTR with default attributes + (detachstate is PTHREAD_JOINABLE, scheduling policy is SCHED_OTHER, + no user-provided stack). */ +extern int pthread_attr_init (pthread_attr_t *__attr) __THROW; + +/* Destroy thread attribute *ATTR. */ +extern int pthread_attr_destroy (pthread_attr_t *__attr) __THROW; + +/* Set the `detachstate' attribute in *ATTR according to DETACHSTATE. */ +extern int pthread_attr_setdetachstate (pthread_attr_t *__attr, + int __detachstate) __THROW; + +/* Return in *DETACHSTATE the `detachstate' attribute in *ATTR. */ +extern int pthread_attr_getdetachstate (__const pthread_attr_t *__attr, + int *__detachstate) __THROW; + +/* Set scheduling parameters (priority, etc) in *ATTR according to PARAM. */ +extern int pthread_attr_setschedparam (pthread_attr_t *__restrict __attr, + __const struct sched_param *__restrict + __param) __THROW; + +/* Return in *PARAM the scheduling parameters of *ATTR. */ +extern int pthread_attr_getschedparam (__const pthread_attr_t *__restrict + __attr, + struct sched_param *__restrict __param) + __THROW; + +/* Set scheduling policy in *ATTR according to POLICY. */ +extern int pthread_attr_setschedpolicy (pthread_attr_t *__attr, int __policy) + __THROW; + +/* Return in *POLICY the scheduling policy of *ATTR. */ +extern int pthread_attr_getschedpolicy (__const pthread_attr_t *__restrict + __attr, int *__restrict __policy) + __THROW; + +/* Set scheduling inheritance mode in *ATTR according to INHERIT. */ +extern int pthread_attr_setinheritsched (pthread_attr_t *__attr, + int __inherit) __THROW; + +/* Return in *INHERIT the scheduling inheritance mode of *ATTR. */ +extern int pthread_attr_getinheritsched (__const pthread_attr_t *__restrict + __attr, int *__restrict __inherit) + __THROW; + +/* Set scheduling contention scope in *ATTR according to SCOPE. */ +extern int pthread_attr_setscope (pthread_attr_t *__attr, int __scope) + __THROW; + +/* Return in *SCOPE the scheduling contention scope of *ATTR. */ +extern int pthread_attr_getscope (__const pthread_attr_t *__restrict __attr, + int *__restrict __scope) __THROW; + +#ifdef __USE_UNIX98 +/* Set the size of the guard area at the bottom of the thread. */ +extern int pthread_attr_setguardsize (pthread_attr_t *__attr, + size_t __guardsize) __THROW; + +/* Get the size of the guard area at the bottom of the thread. */ +extern int pthread_attr_getguardsize (__const pthread_attr_t *__restrict + __attr, size_t *__restrict __guardsize) + __THROW; +#endif + +/* Set the starting address of the stack of the thread to be created. + Depending on whether the stack grows up or down the value must either + be higher or lower than all the address in the memory block. The + minimal size of the block must be PTHREAD_STACK_SIZE. */ +extern int pthread_attr_setstackaddr (pthread_attr_t *__attr, + void *__stackaddr) __THROW; + +/* Return the previously set address for the stack. */ +extern int pthread_attr_getstackaddr (__const pthread_attr_t *__restrict + __attr, void **__restrict __stackaddr) + __THROW; + +#ifdef __USE_XOPEN2K +/* The following two interfaces are intended to replace the last two. They + require setting the address as well as the size since only setting the + address will make the implementation on some architectures impossible. */ +extern int pthread_attr_setstack (pthread_attr_t *__attr, void *__stackaddr, + size_t __stacksize) __THROW; + +/* Return the previously set address for the stack. */ +extern int pthread_attr_getstack (__const pthread_attr_t *__restrict __attr, + void **__restrict __stackaddr, + size_t *__restrict __stacksize) __THROW; +#endif + +/* Add information about the minimum stack size needed for the thread + to be started. This size must never be less than PTHREAD_STACK_SIZE + and must also not exceed the system limits. */ +extern int pthread_attr_setstacksize (pthread_attr_t *__attr, + size_t __stacksize) __THROW; + +/* Return the currently used minimal stack size. */ +extern int pthread_attr_getstacksize (__const pthread_attr_t *__restrict + __attr, size_t *__restrict __stacksize) + __THROW; + +#if 0 +/* Not yet implemented in uClibc! */ + +#ifdef __USE_GNU +/* Initialize thread attribute *ATTR with attributes corresponding to the + already running thread TH. It shall be called on unitialized ATTR + and destroyed with pthread_attr_destroy when no longer needed. */ +extern int pthread_getattr_np (pthread_t __th, pthread_attr_t *__attr) __THROW; +#endif +#endif + +/* Functions for scheduling control. */ + +/* Set the scheduling parameters for TARGET_THREAD according to POLICY + and *PARAM. */ +extern int pthread_setschedparam (pthread_t __target_thread, int __policy, + __const struct sched_param *__param) + __THROW; + +/* Return in *POLICY and *PARAM the scheduling parameters for TARGET_THREAD. */ +extern int pthread_getschedparam (pthread_t __target_thread, + int *__restrict __policy, + struct sched_param *__restrict __param) + __THROW; + +#ifdef __USE_UNIX98 +/* Determine level of concurrency. */ +extern int pthread_getconcurrency (void) __THROW; + +/* Set new concurrency level to LEVEL. */ +extern int pthread_setconcurrency (int __level) __THROW; +#endif + +#if 0 +/* Not yet implemented in uClibc! */ + +#ifdef __USE_GNU +/* Yield the processor to another thread or process. + This function is similar to the POSIX `sched_yield' function but + might be differently implemented in the case of a m-on-n thread + implementation. */ +extern int pthread_yield (void) __THROW; +#endif +#endif + +/* Functions for mutex handling. */ + +/* Initialize MUTEX using attributes in *MUTEX_ATTR, or use the + default values if later is NULL. */ +extern int pthread_mutex_init (pthread_mutex_t *__restrict __mutex, + __const pthread_mutexattr_t *__restrict + __mutex_attr) __THROW; + +/* Destroy MUTEX. */ +extern int pthread_mutex_destroy (pthread_mutex_t *__mutex) __THROW; + +/* Try to lock MUTEX. */ +extern int pthread_mutex_trylock (pthread_mutex_t *__mutex) __THROW; + +/* Wait until lock for MUTEX becomes available and lock it. */ +extern int pthread_mutex_lock (pthread_mutex_t *__mutex) __THROW; + +#ifdef __USE_XOPEN2K +/* Wait until lock becomes available, or specified time passes. */ +extern int pthread_mutex_timedlock (pthread_mutex_t *__restrict __mutex, + __const struct timespec *__restrict + __abstime) __THROW; +#endif + +/* Unlock MUTEX. */ +extern int pthread_mutex_unlock (pthread_mutex_t *__mutex) __THROW; + + +/* Functions for handling mutex attributes. */ + +/* Initialize mutex attribute object ATTR with default attributes + (kind is PTHREAD_MUTEX_TIMED_NP). */ +extern int pthread_mutexattr_init (pthread_mutexattr_t *__attr) __THROW; + +/* Destroy mutex attribute object ATTR. */ +extern int pthread_mutexattr_destroy (pthread_mutexattr_t *__attr) __THROW; + +/* Get the process-shared flag of the mutex attribute ATTR. */ +extern int pthread_mutexattr_getpshared (__const pthread_mutexattr_t * + __restrict __attr, + int *__restrict __pshared) __THROW; + +/* Set the process-shared flag of the mutex attribute ATTR. */ +extern int pthread_mutexattr_setpshared (pthread_mutexattr_t *__attr, + int __pshared) __THROW; + +#ifdef __USE_UNIX98 +/* Set the mutex kind attribute in *ATTR to KIND (either PTHREAD_MUTEX_NORMAL, + PTHREAD_MUTEX_RECURSIVE, PTHREAD_MUTEX_ERRORCHECK, or + PTHREAD_MUTEX_DEFAULT). */ +extern int pthread_mutexattr_settype (pthread_mutexattr_t *__attr, int __kind) + __THROW; + +/* Return in *KIND the mutex kind attribute in *ATTR. */ +extern int pthread_mutexattr_gettype (__const pthread_mutexattr_t *__restrict + __attr, int *__restrict __kind) __THROW; +#endif + + +/* Functions for handling conditional variables. */ + +/* Initialize condition variable COND using attributes ATTR, or use + the default values if later is NULL. */ +extern int pthread_cond_init (pthread_cond_t *__restrict __cond, + __const pthread_condattr_t *__restrict + __cond_attr) __THROW; + +/* Destroy condition variable COND. */ +extern int pthread_cond_destroy (pthread_cond_t *__cond) __THROW; + +/* Wake up one thread waiting for condition variable COND. */ +extern int pthread_cond_signal (pthread_cond_t *__cond) __THROW; + +/* Wake up all threads waiting for condition variables COND. */ +extern int pthread_cond_broadcast (pthread_cond_t *__cond) __THROW; + +/* Wait for condition variable COND to be signaled or broadcast. + MUTEX is assumed to be locked before. */ +extern int pthread_cond_wait (pthread_cond_t *__restrict __cond, + pthread_mutex_t *__restrict __mutex); + +/* Wait for condition variable COND to be signaled or broadcast until + ABSTIME. MUTEX is assumed to be locked before. ABSTIME is an + absolute time specification; zero is the beginning of the epoch + (00:00:00 GMT, January 1, 1970). */ +extern int pthread_cond_timedwait (pthread_cond_t *__restrict __cond, + pthread_mutex_t *__restrict __mutex, + __const struct timespec *__restrict + __abstime); + +/* Functions for handling condition variable attributes. */ + +/* Initialize condition variable attribute ATTR. */ +extern int pthread_condattr_init (pthread_condattr_t *__attr) __THROW; + +/* Destroy condition variable attribute ATTR. */ +extern int pthread_condattr_destroy (pthread_condattr_t *__attr) __THROW; + +/* Get the process-shared flag of the condition variable attribute ATTR. */ +extern int pthread_condattr_getpshared (__const pthread_condattr_t * + __restrict __attr, + int *__restrict __pshared) __THROW; + +/* Set the process-shared flag of the condition variable attribute ATTR. */ +extern int pthread_condattr_setpshared (pthread_condattr_t *__attr, + int __pshared) __THROW; + + +#if defined __USE_UNIX98 || defined __USE_XOPEN2K +/* Functions for handling read-write locks. */ + +/* Initialize read-write lock RWLOCK using attributes ATTR, or use + the default values if later is NULL. */ +extern int pthread_rwlock_init (pthread_rwlock_t *__restrict __rwlock, + __const pthread_rwlockattr_t *__restrict + __attr) __THROW; + +/* Destroy read-write lock RWLOCK. */ +extern int pthread_rwlock_destroy (pthread_rwlock_t *__rwlock) __THROW; + +/* Acquire read lock for RWLOCK. */ +extern int pthread_rwlock_rdlock (pthread_rwlock_t *__rwlock) __THROW; + +/* Try to acquire read lock for RWLOCK. */ +extern int pthread_rwlock_tryrdlock (pthread_rwlock_t *__rwlock) __THROW; + +# ifdef __USE_XOPEN2K +/* Try to acquire read lock for RWLOCK or return after specfied time. */ +extern int pthread_rwlock_timedrdlock (pthread_rwlock_t *__restrict __rwlock, + __const struct timespec *__restrict + __abstime) __THROW; +# endif + +/* Acquire write lock for RWLOCK. */ +extern int pthread_rwlock_wrlock (pthread_rwlock_t *__rwlock) __THROW; + +/* Try to acquire write lock for RWLOCK. */ +extern int pthread_rwlock_trywrlock (pthread_rwlock_t *__rwlock) __THROW; + +# ifdef __USE_XOPEN2K +/* Try to acquire write lock for RWLOCK or return after specfied time. */ +extern int pthread_rwlock_timedwrlock (pthread_rwlock_t *__restrict __rwlock, + __const struct timespec *__restrict + __abstime) __THROW; +# endif + +/* Unlock RWLOCK. */ +extern int pthread_rwlock_unlock (pthread_rwlock_t *__rwlock) __THROW; + + +/* Functions for handling read-write lock attributes. */ + +/* Initialize attribute object ATTR with default values. */ +extern int pthread_rwlockattr_init (pthread_rwlockattr_t *__attr) __THROW; + +/* Destroy attribute object ATTR. */ +extern int pthread_rwlockattr_destroy (pthread_rwlockattr_t *__attr) __THROW; + +/* Return current setting of process-shared attribute of ATTR in PSHARED. */ +extern int pthread_rwlockattr_getpshared (__const pthread_rwlockattr_t * + __restrict __attr, + int *__restrict __pshared) __THROW; + +/* Set process-shared attribute of ATTR to PSHARED. */ +extern int pthread_rwlockattr_setpshared (pthread_rwlockattr_t *__attr, + int __pshared) __THROW; + +/* Return current setting of reader/writer preference. */ +extern int pthread_rwlockattr_getkind_np (__const pthread_rwlockattr_t *__attr, + int *__pref) __THROW; + +/* Set reader/write preference. */ +extern int pthread_rwlockattr_setkind_np (pthread_rwlockattr_t *__attr, + int __pref) __THROW; +#endif + +#if 0 +/* Not yet implemented in uClibc! */ + +#ifdef __USE_XOPEN2K +/* The IEEE Std. 1003.1j-2000 introduces functions to implement + spinlocks. */ + +/* Initialize the spinlock LOCK. If PSHARED is nonzero the spinlock can + be shared between different processes. */ +extern int pthread_spin_init (pthread_spinlock_t *__lock, int __pshared) + __THROW; + +/* Destroy the spinlock LOCK. */ +extern int pthread_spin_destroy (pthread_spinlock_t *__lock) __THROW; + +/* Wait until spinlock LOCK is retrieved. */ +extern int pthread_spin_lock (pthread_spinlock_t *__lock) __THROW; + +/* Try to lock spinlock LOCK. */ +extern int pthread_spin_trylock (pthread_spinlock_t *__lock) __THROW; + +/* Release spinlock LOCK. */ +extern int pthread_spin_unlock (pthread_spinlock_t *__lock) __THROW; + + +/* Barriers are a also a new feature in 1003.1j-2000. */ + +extern int pthread_barrier_init (pthread_barrier_t *__restrict __barrier, + __const pthread_barrierattr_t *__restrict + __attr, unsigned int __count) __THROW; + +extern int pthread_barrier_destroy (pthread_barrier_t *__barrier) __THROW; + +extern int pthread_barrierattr_init (pthread_barrierattr_t *__attr) __THROW; + +extern int pthread_barrierattr_destroy (pthread_barrierattr_t *__attr) __THROW; + +extern int pthread_barrierattr_getpshared (__const pthread_barrierattr_t * + __restrict __attr, + int *__restrict __pshared) __THROW; + +extern int pthread_barrierattr_setpshared (pthread_barrierattr_t *__attr, + int __pshared) __THROW; + +extern int pthread_barrier_wait (pthread_barrier_t *__barrier) __THROW; +#endif +#endif + + +/* Functions for handling thread-specific data. */ + +/* Create a key value identifying a location in the thread-specific + data area. Each thread maintains a distinct thread-specific data + area. DESTR_FUNCTION, if non-NULL, is called with the value + associated to that key when the key is destroyed. + DESTR_FUNCTION is not called if the value associated is NULL when + the key is destroyed. */ +extern int pthread_key_create (pthread_key_t *__key, + void (*__destr_function) (void *)) __THROW; + +/* Destroy KEY. */ +extern int pthread_key_delete (pthread_key_t __key) __THROW; + +/* Store POINTER in the thread-specific data slot identified by KEY. */ +extern int pthread_setspecific (pthread_key_t __key, + __const void *__pointer) __THROW; + +/* Return current value of the thread-specific data slot identified by KEY. */ +extern void *pthread_getspecific (pthread_key_t __key) __THROW; + + +/* Functions for handling initialization. */ + +/* Guarantee that the initialization function INIT_ROUTINE will be called + only once, even if pthread_once is executed several times with the + same ONCE_CONTROL argument. ONCE_CONTROL must point to a static or + extern variable initialized to PTHREAD_ONCE_INIT. + + The initialization functions might throw exception which is why + this function is not marked with __THROW. */ +extern int pthread_once (pthread_once_t *__once_control, + void (*__init_routine) (void)); + + +/* Functions for handling cancellation. */ + +/* Set cancelability state of current thread to STATE, returning old + state in *OLDSTATE if OLDSTATE is not NULL. */ +extern int pthread_setcancelstate (int __state, int *__oldstate); + +/* Set cancellation state of current thread to TYPE, returning the old + type in *OLDTYPE if OLDTYPE is not NULL. */ +extern int pthread_setcanceltype (int __type, int *__oldtype); + +/* Cancel THREAD immediately or at the next possibility. */ +extern int pthread_cancel (pthread_t __cancelthread); + +/* Test for pending cancellation for the current thread and terminate + the thread as per pthread_exit(PTHREAD_CANCELED) if it has been + cancelled. */ +extern void pthread_testcancel (void); + + +/* Install a cleanup handler: ROUTINE will be called with arguments ARG + when the thread is cancelled or calls pthread_exit. ROUTINE will also + be called with arguments ARG when the matching pthread_cleanup_pop + is executed with non-zero EXECUTE argument. + pthread_cleanup_push and pthread_cleanup_pop are macros and must always + be used in matching pairs at the same nesting level of braces. */ + +#define pthread_cleanup_push(routine,arg) \ + { struct _pthread_cleanup_buffer _buffer; \ + _pthread_cleanup_push (&_buffer, (routine), (arg)); + +extern void _pthread_cleanup_push (struct _pthread_cleanup_buffer *__buffer, + void (*__routine) (void *), + void *__arg) __THROW; + +/* Remove a cleanup handler installed by the matching pthread_cleanup_push. + If EXECUTE is non-zero, the handler function is called. */ + +#define pthread_cleanup_pop(execute) \ + _pthread_cleanup_pop (&_buffer, (execute)); } + +extern void _pthread_cleanup_pop (struct _pthread_cleanup_buffer *__buffer, + int __execute) __THROW; + +/* Install a cleanup handler as pthread_cleanup_push does, but also + saves the current cancellation type and set it to deferred cancellation. */ + +#ifdef __USE_GNU +# define pthread_cleanup_push_defer_np(routine,arg) \ + { struct _pthread_cleanup_buffer _buffer; \ + _pthread_cleanup_push_defer (&_buffer, (routine), (arg)); + +extern void _pthread_cleanup_push_defer (struct _pthread_cleanup_buffer *__buffer, + void (*__routine) (void *), + void *__arg) __THROW; + +/* Remove a cleanup handler as pthread_cleanup_pop does, but also + restores the cancellation type that was in effect when the matching + pthread_cleanup_push_defer was called. */ + +# define pthread_cleanup_pop_restore_np(execute) \ + _pthread_cleanup_pop_restore (&_buffer, (execute)); } + +extern void _pthread_cleanup_pop_restore (struct _pthread_cleanup_buffer *__buffer, + int __execute) __THROW; +#endif + + +#if 0 +/* Not yet implemented in uClibc! */ + +#ifdef __USE_XOPEN2K +/* Get ID of CPU-time clock for thread THREAD_ID. */ +extern int pthread_getcpuclockid (pthread_t __thread_id, + clockid_t *__clock_id) __THROW; +#endif +#endif + + +/* Functions for handling signals. */ +#include <bits/sigthread.h> + + +/* Functions for handling process creation and process execution. */ + +/* Install handlers to be called when a new process is created with FORK. + The PREPARE handler is called in the parent process just before performing + FORK. The PARENT handler is called in the parent process just after FORK. + The CHILD handler is called in the child process. Each of the three + handlers can be NULL, meaning that no handler needs to be called at that + point. + PTHREAD_ATFORK can be called several times, in which case the PREPARE + handlers are called in LIFO order (last added with PTHREAD_ATFORK, + first called before FORK), and the PARENT and CHILD handlers are called + in FIFO (first added, first called). */ + +extern int pthread_atfork (void (*__prepare) (void), + void (*__parent) (void), + void (*__child) (void)) __THROW; + +/* Terminate all threads in the program except the calling process. + Should be called just before invoking one of the exec*() functions. */ + +extern void pthread_kill_other_threads_np (void) __THROW; + +__END_DECLS + +#endif /* pthread.h */ diff --git a/libpthread/linuxthreads.old/sysdeps/pthread/tls.h b/libpthread/linuxthreads.old/sysdeps/pthread/tls.h new file mode 100644 index 000000000..6a23ec05e --- /dev/null +++ b/libpthread/linuxthreads.old/sysdeps/pthread/tls.h @@ -0,0 +1,81 @@ +/* Definition for thread-local data handling. Generic version. + Copyright (C) 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 2.1 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. */ + +/* By default no TLS support is available. This is signaled by the + absence of the symbol USE_TLS. */ +#undef USE_TLS + + +/* An architecture-specific version of this file has to defined a + number of symbols: + + TLS_TCB_AT_TP or TLS_DTV_AT_TP + + The presence of one of these symbols signals which variant of + the TLS ABI is used. There are in the moment two variants + available: + + * the thread pointer points to a thread control block + + * the thread pointer points to the dynamic thread vector + + + TLS_TCB_SIZE + + This is the size of the thread control block structure. How + this is actually defined depends on the ABI. The thread control + block could be internal descriptor of the thread library or + just a data structure which allows finding the DTV. + + TLS_INIT_TCB_SIZE + + Similarly, but this value is only used at startup and in the + dynamic linker itself. There are no threads in use at that time. + + + TLS_TCB_ALIGN + + Alignment requirements for the TCB structure. + + TLS_INIT_TCB_ALIGN + + Similarly, but for the structure used at startup time. + + + INSTALL_DTV(tcb, init_dtv) + + This macro must install the given initial DTV into the thread control + block TCB. The normal runtime functionality must then be able to + use the value. + + + TLS_INIT_TP(tcb, firstcall) + + This macro must initialize the thread pointer to enable normal TLS + operation. The first parameter is a pointer to the thread control + block. The second parameter specifies whether this is the first + call for the TCB. ld.so calls this macro more than once. + + + THREAD_DTV() + + This macro returns the address of the DTV of the current thread. + This normally is done using the the thread register which points + to the dtv or the TCB (from which the DTV can found). + */ diff --git a/libpthread/linuxthreads.old/sysdeps/sh/pt-machine.h b/libpthread/linuxthreads.old/sysdeps/sh/pt-machine.h new file mode 100644 index 000000000..02545e6b4 --- /dev/null +++ b/libpthread/linuxthreads.old/sysdeps/sh/pt-machine.h @@ -0,0 +1,81 @@ +/* Machine-dependent pthreads configuration and inline functions. + SuperH version. + Copyright (C) 1999, 2000, 2001, 2002, 2003 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Niibe Yutaka <gniibe@m17n.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; see the file COPYING.LIB. If not, + write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, + Boston, MA 02111-1307, USA. */ + +#ifndef _PT_MACHINE_H +#define _PT_MACHINE_H 1 + +#ifndef __ASSEMBLER__ +#ifndef PT_EI +# define PT_EI extern inline __attribute__ ((always_inline)) +#endif + +extern long int testandset (int *spinlock); +extern int __compare_and_swap (long int *p, long int oldval, long int newval); + +/* Spinlock implementation; required. */ +PT_EI long int +testandset (int *spinlock) +{ + int ret; + + __asm__ __volatile__( + "tas.b @%1\n\t" + "movt %0" + : "=r" (ret) + : "r" (spinlock) + : "memory", "cc"); + + return (ret == 0); +} + +/* We want the OS to assign stack addresses. */ +#define FLOATING_STACKS 1 + +/* Maximum size of the stack if the rlimit is unlimited. */ +#define ARCH_STACK_MAX_SIZE 32*1024*1024 + +/* 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__ ("r15"); + +/* Return the thread descriptor for the current thread. */ +struct _pthread_descr_struct; +#define THREAD_SELF \ + ({ struct _pthread_descr_struct *self; \ + __asm__("stc gbr,%0" : "=r" (self)); self;}) + +/* Initialize the thread-unique value. */ +#define INIT_THREAD_SELF(descr, nr) \ + ({ __asm__ __volatile__("ldc %0,gbr" : : "r" (descr));}) + +/* Access to data in the thread descriptor is easy. */ +#define THREAD_GETMEM(descr, member) \ + ((void) sizeof (descr), THREAD_SELF->member) +#define THREAD_GETMEM_NC(descr, member) \ + ((void) sizeof (descr), THREAD_SELF->member) +#define THREAD_SETMEM(descr, member, value) \ + ((void) sizeof (descr), THREAD_SELF->member = (value)) +#define THREAD_SETMEM_NC(descr, member, value) \ + ((void) sizeof (descr), THREAD_SELF->member = (value)) +#endif /* __ASSEMBLER__ */ + +#endif /* pt-machine.h */ diff --git a/libpthread/linuxthreads.old/sysdeps/sh/tls.h b/libpthread/linuxthreads.old/sysdeps/sh/tls.h new file mode 100644 index 000000000..75326d8e1 --- /dev/null +++ b/libpthread/linuxthreads.old/sysdeps/sh/tls.h @@ -0,0 +1,117 @@ +/* Definition for thread-local data handling. linuxthreads/SH 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, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +#ifndef _TLS_H +#define _TLS_H + +# include <pt-machine.h> + +#ifndef __ASSEMBLER__ +# include <stdbool.h> +# include <stddef.h> +# include <stdint.h> + +/* Type for the dtv. */ +typedef union dtv +{ + size_t counter; + void *pointer; +} dtv_t; + + +typedef struct +{ + void *tcb; /* Pointer to the TCB. Not necessary the + thread descriptor used by libpthread. */ + dtv_t *dtv; + void *self; /* Pointer to the thread descriptor. */ +} tcbhead_t; + + +/* We can support TLS only if the floating-stack support is available. */ +#if defined FLOATING_STACKS && defined HAVE_TLS_SUPPORT + +/* Get system call information. */ +# include <sysdep.h> + +/* Signal that TLS support is available. */ +//# define USE_TLS 1 + + +/* 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 TLS blocks start right after the TCB. */ +# define TLS_DTV_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) \ + ({ struct _pthread_descr_struct *__descr; \ + THREAD_SETMEM (__descr, p_header.data.dtvp, (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. */ +# define TLS_INIT_TP(descr, secondcall) \ + ({ \ + void *_descr = (descr); \ + int result; \ + tcbhead_t *head = _descr; \ + \ + head->tcb = _descr; \ + /* For now the thread descriptor is at the same address. */ \ + head->self = _descr; \ + \ + asm ("ldc %0,gbr" : : "r" (_descr)); \ + \ + 0; \ + }) + + +/* Return the address of the dtv for the current thread. */ +# define THREAD_DTV() \ + ({ struct _pthread_descr_struct *__descr; \ + THREAD_GETMEM (__descr, p_header.data.dtvp); }) + +#endif /* FLOATING_STACKS && HAVE_TLS_SUPPORT */ +#endif /* __ASSEMBLER__ */ + +#endif /* tls.h */ diff --git a/libpthread/linuxthreads.old/sysdeps/sh64/Makefile.arch b/libpthread/linuxthreads.old/sysdeps/sh64/Makefile.arch new file mode 100644 index 000000000..38cd12db6 --- /dev/null +++ b/libpthread/linuxthreads.old/sysdeps/sh64/Makefile.arch @@ -0,0 +1,26 @@ +# Makefile for uClibc +# +# Copyright (C) 2003 Paul Mundt <lethal@linux-sh.org> +# Copyright (C) 2000-2005 Erik Andersen <andersen@uclibc.org> +# +# Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball. +# + +# We need to build as SHcompact for tas.. +ARCH_CFLAGS:=$(subst 32media,compact,$(ARCH_CFLAGS)) + +libpthread_ARCH_DIR:=$(top_srcdir)libpthread/linuxthreads/sysdeps/sh64 +libpthread_ARCH_OUT:=$(top_builddir)libpthread/linuxthreads/sysdeps/sh64 + +libpthread_ARCH_SRC:=$(wildcard $(libpthread_ARCH_DIR)/*.c) +libpthread_ARCH_OBJ:=$(patsubst $(libpthread_ARCH_DIR)/%.c,$(libpthread_ARCH_OUT)/%.o,$(libpthread_ARCH_SRC)) + +libpthread-a-$(UCLIBC_HAS_THREADS)+=$(libpthread_ARCH_OBJ) +libpthread-so-$(UCLIBC_HAS_THREADS)+=$(libpthread_ARCH_OBJ:.o=.os) + +libpthread-multi-$(UCLIBC_HAS_THREADS)+=$(libpthread_ARCH_SRC) + +objclean-y+=libpthread_arch_objclean + +libpthread_arch_objclean: + $(RM) $(libpthread_ARCH_OUT)/*.{o,os} diff --git a/libpthread/linuxthreads.old/sysdeps/sh64/pt-machine.c b/libpthread/linuxthreads.old/sysdeps/sh64/pt-machine.c new file mode 100644 index 000000000..ea4881322 --- /dev/null +++ b/libpthread/linuxthreads.old/sysdeps/sh64/pt-machine.c @@ -0,0 +1,47 @@ +/* Cloned for uClibc by Paul Mundt, December 2003 */ +/* Modified by SuperH, Inc. September 2003 */ + +/* Machine-dependent pthreads configuration and inline functions. + SH5 version. + Copyright (C) 1999, 2000, 2001 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Niibe Yutaka <gniibe@m17n.org>. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public License as + published by the Free Software Foundation; either version 2 of the + License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If not, + write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, + Boston, MA 02111-1307, USA. */ + +#include "pt-machine.h" + +/* Spinlock implementation; required. */ + +/* The SH5 does not have a suitable test-and-set instruction (SWAP only + operates on an aligned quad word). So we use the SH4 version instead. + This must be seperately compiled in SHcompact mode, so it cannot be + inline. */ + +long int testandset (int *spinlock) +{ + int ret; + + __asm__ __volatile__( + "tas.b @%1\n\t" + "movt %0" + : "=r" (ret) + : "r" (spinlock) + : "memory", "cc"); + + return (ret == 0); +} + diff --git a/libpthread/linuxthreads.old/sysdeps/sh64/pt-machine.h b/libpthread/linuxthreads.old/sysdeps/sh64/pt-machine.h new file mode 100644 index 000000000..8269a4cb3 --- /dev/null +++ b/libpthread/linuxthreads.old/sysdeps/sh64/pt-machine.h @@ -0,0 +1,36 @@ +/* Cloned for uClibc by Paul Mundt, December 2003 */ +/* Modified by SuperH, Inc. September 2003 */ + +/* Machine-dependent pthreads configuration and inline functions. + SuperH version. + Copyright (C) 1999, 2000, 2001 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Niibe Yutaka <gniibe@m17n.org>. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public License as + published by the Free Software Foundation; either version 2 of the + License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If not, + write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, + Boston, MA 02111-1307, USA. */ + +#ifndef PT_EI +# define PT_EI extern inline +#endif + +/* Spinlock implementation; required. */ +extern long int testandset (int *spinlock); + + +/* 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__ ("r15"); diff --git a/libpthread/linuxthreads.old/sysdeps/sparc/pt-machine.h b/libpthread/linuxthreads.old/sysdeps/sparc/pt-machine.h new file mode 100644 index 000000000..ab90810f1 --- /dev/null +++ b/libpthread/linuxthreads.old/sysdeps/sparc/pt-machine.h @@ -0,0 +1,8 @@ +#include <features.h> +#include <bits/wordsize.h> + +#if __WORDSIZE == 32 +# include "sparc32/pt-machine.h" +#else +# include "sparc64/pt-machine.h" +#endif diff --git a/libpthread/linuxthreads.old/sysdeps/sparc/sparc32/pt-machine.h b/libpthread/linuxthreads.old/sysdeps/sparc/sparc32/pt-machine.h new file mode 100644 index 000000000..322a52051 --- /dev/null +++ b/libpthread/linuxthreads.old/sysdeps/sparc/sparc32/pt-machine.h @@ -0,0 +1,83 @@ +/* Machine-dependent pthreads configuration and inline functions. + sparc version. + Copyright (C) 1996-1998, 2000-2003 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Richard Henderson <rth@tamu.edu>. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public License as + published by the Free Software Foundation; either version 2.1 of the + License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; see the file COPYING.LIB. If not, + write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, + Boston, MA 02111-1307, USA. */ + +#ifndef _PT_MACHINE_H +#define _PT_MACHINE_H 1 + +#ifndef PT_EI +# define PT_EI extern inline __attribute__ ((always_inline)) +#endif + +extern long int testandset (int *spinlock); +extern int __compare_and_swap (long int *p, long int oldval, long int newval); + +/* Spinlock implementation; required. */ +PT_EI long int +testandset (int *spinlock) +{ + int ret; + + __asm__ __volatile__("ldstub %1,%0" + : "=r"(ret), "=m"(*spinlock) + : "m"(*spinlock)); + + return ret; +} + + +/* Memory barrier; default is to do nothing */ +#define MEMORY_BARRIER() __asm__ __volatile__("stbar" : : : "memory") + + +/* Get some notion of the current stack. Need not be exactly the top + of the stack, just something somewhere in the current frame. */ +#define CURRENT_STACK_FRAME (stack_pointer + (2 * 64)) +register char *stack_pointer __asm__("%sp"); + + +/* Registers %g6 and %g7 are reserved by the ABI for "system use". + %g7 is specified in the TLS ABI as thread pointer -- we do the same. */ +struct _pthread_descr_struct; +register struct _pthread_descr_struct *__thread_self __asm__("%g7"); + +/* Return the thread descriptor for the current thread. */ +#define THREAD_SELF __thread_self + +/* Initialize the thread-unique value. */ +#define INIT_THREAD_SELF(descr, nr) (__thread_self = (descr)) + +/* Access to data in the thread descriptor is easy. */ +#define THREAD_GETMEM(descr, member) \ + ((void) sizeof (descr), THREAD_SELF->member) +#define THREAD_GETMEM_NC(descr, member) \ + ((void) sizeof (descr), THREAD_SELF->member) +#define THREAD_SETMEM(descr, member, value) \ + ((void) sizeof (descr), THREAD_SELF->member = (value)) +#define THREAD_SETMEM_NC(descr, member, value) \ + ((void) sizeof (descr), THREAD_SELF->member = (value)) + +/* We want the OS to assign stack addresses. */ +#define FLOATING_STACKS 1 + +/* Maximum size of the stack if the rlimit is unlimited. */ +#define ARCH_STACK_MAX_SIZE 8*1024*1024 + +#endif /* pt-machine.h */ diff --git a/libpthread/linuxthreads.old/sysdeps/sparc/sparc64/pt-machine.h b/libpthread/linuxthreads.old/sysdeps/sparc/sparc64/pt-machine.h new file mode 100644 index 000000000..f65c13be1 --- /dev/null +++ b/libpthread/linuxthreads.old/sysdeps/sparc/sparc64/pt-machine.h @@ -0,0 +1,105 @@ +/* Machine-dependent pthreads configuration and inline functions. + Sparc v9 version. + Copyright (C) 1997-2002, 2003 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Richard Henderson <rth@tamu.edu>. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public License as + published by the Free Software Foundation; either version 2.1 of the + License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; see the file COPYING.LIB. If + not, write to the Free Software Foundation, Inc., + 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +#ifndef _PT_MACHINE_H +#define _PT_MACHINE_H 1 + +#ifndef PT_EI +# define PT_EI extern inline __attribute__ ((always_inline)) +#endif + +extern long int testandset (int *spinlock); +extern int __compare_and_swap (long int *p, long int oldval, long int newval); + +/* Spinlock implementation; required. */ +PT_EI long int +testandset (int *spinlock) +{ + int ret; + + __asm__ __volatile__("ldstub %1,%0" + : "=r" (ret), "=m" (*spinlock) : "m" (*spinlock)); + + return ret; +} + + +/* Memory barrier; default is to do nothing */ +#define MEMORY_BARRIER() \ + __asm__ __volatile__("membar #LoadLoad | #LoadStore | #StoreLoad | #StoreStore" : : : "memory") +/* Read barrier. */ +#define READ_MEMORY_BARRIER() \ + __asm__ __volatile__("membar #LoadLoad | #LoadStore" : : : "memory") +/* Write barrier. */ +#define WRITE_MEMORY_BARRIER() \ + __asm__ __volatile__("membar #StoreLoad | #StoreStore" : : : "memory") + + +/* Get some notion of the current stack. Need not be exactly the top + of the stack, just something somewhere in the current frame. */ +#define CURRENT_STACK_FRAME (stack_pointer + (2 * 128)) +register char *stack_pointer __asm__ ("%sp"); + + +/* Registers %g6 and %g7 are reserved by the ABI for "system use". The + TLS ABI specifies %g7 as the thread pointer. */ +struct _pthread_descr_struct; +register struct _pthread_descr_struct *__thread_self __asm__ ("%g7"); + +/* Return the thread descriptor for the current thread. */ +#define THREAD_SELF __thread_self + +/* Initialize the thread-unique value. */ +#define INIT_THREAD_SELF(descr, nr) (__thread_self = (descr)) + + +/* Compare-and-swap for semaphores. */ + +#define HAS_COMPARE_AND_SWAP +PT_EI int +__compare_and_swap (long int *p, long int oldval, long int newval) +{ + long int readval; + + __asm__ __volatile__ ("casx [%4], %2, %0" + : "=r"(readval), "=m"(*p) + : "r"(oldval), "m"(*p), "r"(p), "0"(newval)); + MEMORY_BARRIER(); + return readval == oldval; +} + +/* Access to data in the thread descriptor is easy. */ +#define THREAD_GETMEM(descr, member) \ + ((void) sizeof (descr), THREAD_SELF->member) +#define THREAD_GETMEM_NC(descr, member) \ + ((void) sizeof (descr), THREAD_SELF->member) +#define THREAD_SETMEM(descr, member, value) \ + ((void) sizeof (descr), THREAD_SELF->member = (value)) +#define THREAD_SETMEM_NC(descr, member, value) \ + ((void) sizeof (descr), THREAD_SELF->member = (value)) + +/* We want the OS to assign stack addresses. */ +#define FLOATING_STACKS 1 + +/* Maximum size of the stack if the rlimit is unlimited. */ +#define ARCH_STACK_MAX_SIZE 32*1024*1024 + +#endif /* pt-machine.h */ diff --git a/libpthread/linuxthreads.old/sysdeps/v850/pt-machine.h b/libpthread/linuxthreads.old/sysdeps/v850/pt-machine.h new file mode 100644 index 000000000..fb41c41e9 --- /dev/null +++ b/libpthread/linuxthreads.old/sysdeps/v850/pt-machine.h @@ -0,0 +1,46 @@ +/* + * sysdeps/v850/pt-machine.h -- v850-specific pthread definitions + * + * Copyright (C) 2002 NEC Electronics Corporation + * Copyright (C) 2002 Miles Bader <miles@gnu.org> + * + * This file is subject to the terms and conditions of the GNU Lesser + * General Public License. See the file COPYING.LIB in the main + * directory of this archive for more details. + * + * Written by Miles Bader <miles@gnu.org> + */ + +#ifndef PT_EI +# define PT_EI extern inline +#endif + +/* Get some notion of the current stack. Need not be exactly the top + of the stack, just something somewhere in the current frame. */ +#define CURRENT_STACK_FRAME __stack_pointer +register char *__stack_pointer __asm__ ("sp"); + +#define HAS_COMPARE_AND_SWAP + +/* Atomically: If *PTR == OLD, set *PTR to NEW and return true, + otherwise do nothing and return false. */ +PT_EI int +__compare_and_swap (long *ptr, long old, long new) +{ + unsigned long psw; + + /* disable interrupts */ + __asm__ __volatile__ ("stsr psw, %0; di" : "=&r" (psw)); + + if (likely (*ptr == old)) + { + *ptr = new; + __asm__ __volatile__ ("ldsr %0, psw" :: "r" (psw)); /* re-enable */ + return 1; + } + else + { + __asm__ __volatile__ ("ldsr %0, psw" :: "r" (psw)); /* re-enable */ + return 0; + } +} diff --git a/libpthread/linuxthreads.old/sysdeps/x86_64/pt-machine.h b/libpthread/linuxthreads.old/sysdeps/x86_64/pt-machine.h new file mode 100644 index 000000000..8a2d1a762 --- /dev/null +++ b/libpthread/linuxthreads.old/sysdeps/x86_64/pt-machine.h @@ -0,0 +1,86 @@ +/* Machine-dependent pthreads configuration and inline functions. + x86-64 version. + Copyright (C) 2001, 2002, 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, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +#ifndef _PT_MACHINE_H +#define _PT_MACHINE_H 1 + +#ifndef __ASSEMBLER__ +# include <stddef.h> /* For offsetof. */ +# include <stdlib.h> /* For abort(). */ +# include <asm/prctl.h> + + +# ifndef PT_EI +# define PT_EI extern inline __attribute__ ((always_inline)) +# endif + +extern long int testandset (int *spinlock); +extern int __compare_and_swap (long int *p, long int oldval, long int newval); + +/* 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__ ("%rsp") __attribute_used__; + + +/* Spinlock implementation; required. */ +PT_EI long int +testandset (int *spinlock) +{ + long int ret; + + __asm__ __volatile__ ( + "xchgl %k0, %1" + : "=r"(ret), "=m"(*spinlock) + : "0"(1), "m"(*spinlock) + : "memory"); + + return ret; +} + + +/* 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) +{ + char ret; + long int readval; + + __asm__ __volatile__ ("lock; cmpxchgq %3, %1; sete %0" + : "=q" (ret), "=m" (*p), "=a" (readval) + : "r" (newval), "m" (*p), "a" (oldval) + : "memory"); + return ret; +} + +#endif /* !__ASSEMBLER__ */ + +/* We want the OS to assign stack addresses. */ +#define FLOATING_STACKS 1 + +/* Maximum size of the stack if the rlimit is unlimited. */ +#define ARCH_STACK_MAX_SIZE 32*1024*1024 + +/* The ia32e really want some help to prevent overheating. */ +#define BUSY_WAIT_NOP __asm__ ("rep; nop") + +#endif /* pt-machine.h */ diff --git a/libpthread/linuxthreads.old/sysdeps/x86_64/tls.h b/libpthread/linuxthreads.old/sysdeps/x86_64/tls.h new file mode 100644 index 000000000..d67275c10 --- /dev/null +++ b/libpthread/linuxthreads.old/sysdeps/x86_64/tls.h @@ -0,0 +1,134 @@ +/* Definitions for thread-local data handling. linuxthreads/x86-64 version. + Copyright (C) 2002, 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. */ + +#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 + + +#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) \ + ({ struct _pthread_descr_struct *__descr; \ + THREAD_SETMEM (__descr, p_header.data.dtvp, (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. */ +# define TLS_INIT_TP(descr, secondcall) \ + ({ \ + void *_descr = (descr); \ + tcbhead_t *head = _descr; \ + long int _result; \ + \ + head->tcb = _descr; \ + /* For now the thread descriptor is at the same address. */ \ + head->self = _descr; \ + \ + asm volatile ("syscall" \ + : "=a" (_result) \ + : "0" ((unsigned long int) __NR_arch_prctl), \ + "D" ((unsigned long int) ARCH_SET_FS), \ + "S" (_descr) \ + : "memory", "cc", "r11", "cx"); \ + \ + _result ? "cannot set %fs base address for thread-local storage" : 0; \ + }) + +/* Indicate that dynamic linker shouldn't try to initialize TLS even + when no PT_TLS segments are found in the program and libraries + it is linked against. */ +# define TLS_INIT_TP_EXPENSIVE 1 + +/* Return the address of the dtv for the current thread. */ +# define THREAD_DTV() \ + ({ struct _pthread_descr_struct *__descr; \ + THREAD_GETMEM (__descr, p_header.data.dtvp); }) + +# endif /* HAVE_TLS_SUPPORT */ +#endif /* __ASSEMBLER__ */ + +#endif /* tls.h */ |