diff options
Diffstat (limited to 'libpthread/nptl/sysdeps/alpha')
| -rw-r--r-- | libpthread/nptl/sysdeps/alpha/Makefile | 21 | ||||
| -rw-r--r-- | libpthread/nptl/sysdeps/alpha/elf/pt-initfini.c | 89 | ||||
| -rw-r--r-- | libpthread/nptl/sysdeps/alpha/jmpbuf-unwind.h | 31 | ||||
| -rw-r--r-- | libpthread/nptl/sysdeps/alpha/pthread_spin_lock.S | 45 | ||||
| -rw-r--r-- | libpthread/nptl/sysdeps/alpha/pthread_spin_trylock.S | 46 | ||||
| -rw-r--r-- | libpthread/nptl/sysdeps/alpha/pthreaddef.h | 38 | ||||
| -rw-r--r-- | libpthread/nptl/sysdeps/alpha/tcb-offsets.sym | 14 | ||||
| -rw-r--r-- | libpthread/nptl/sysdeps/alpha/tls.h | 129 |
8 files changed, 413 insertions, 0 deletions
diff --git a/libpthread/nptl/sysdeps/alpha/Makefile b/libpthread/nptl/sysdeps/alpha/Makefile new file mode 100644 index 000000000..88c106bbb --- /dev/null +++ b/libpthread/nptl/sysdeps/alpha/Makefile @@ -0,0 +1,21 @@ +# Copyright (C) 2003 Free Software Foundation, Inc. +# This file is part of the GNU C Library. +# +# The GNU C Library is free software; you can redistribute it and/or +# modify it under the terms of the GNU Lesser General Public +# License as published by the Free Software Foundation; either +# version 2.1 of the License, or (at your option) any later version. +# +# The GNU C Library is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU +# Lesser General Public License for more details. +# +# You should have received a copy of the GNU Lesser General Public +# License along with the GNU C Library; if not, write to the Free +# Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA +# 02111-1307 USA. + +ifeq ($(subdir),csu) +gen-as-const-headers += tcb-offsets.sym +endif diff --git a/libpthread/nptl/sysdeps/alpha/elf/pt-initfini.c b/libpthread/nptl/sysdeps/alpha/elf/pt-initfini.c new file mode 100644 index 000000000..ba2e419d6 --- /dev/null +++ b/libpthread/nptl/sysdeps/alpha/elf/pt-initfini.c @@ -0,0 +1,89 @@ +/* Special .init and .fini section support for Alpha. NPTL version. + Copyright (C) 2003 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +/* This file is compiled into assembly code which is then munged by a sed + script into two files: crti.s and crtn.s. + + * crti.s puts a function prologue at the beginning of the .init and .fini + sections and defines global symbols for those addresses, so they can be + called as functions. + + * crtn.s puts the corresponding function epilogues in the .init and .fini + sections. + + This differs from what would be generated by the generic code in that + we save and restore the GP within the function. In order for linker + relaxation to work, the value in the GP register on exit from a function + must be valid for the function entry point. Normally, a function is + contained within one object file and this is not an issue, provided + that the function reloads the gp after making any function calls. + However, _init and _fini are constructed from pieces of many object + files, all of which may have different GP values. So we must reload + the GP value from crti.o in crtn.o. */ + +__asm__ (" \n\ +#include \"defs.h\" \n\ + \n\ +/*@HEADER_ENDS*/ \n\ + \n\ +/*@_init_PROLOG_BEGINS*/ \n\ + .section .init, \"ax\", @progbits \n\ + .globl _init \n\ + .type _init,@function \n\ + .usepv _init,std \n\ +_init: \n\ + ldgp $29, 0($27) \n\ + subq $30, 16, $30 \n\ + stq $26, 0($30) \n\ + stq $29, 8($30) \n\ + bsr $26, __pthread_initialize_minimal_internal !samegp \n\ + .align 3 \n\ +/*@_init_PROLOG_ENDS*/ \n\ + \n\ +/*@_init_EPILOG_BEGINS*/ \n\ + .section .init, \"ax\", @progbits \n\ + ldq $26, 0($30) \n\ + ldq $29, 8($30) \n\ + addq $30, 16, $30 \n\ + ret \n\ +/*@_init_EPILOG_ENDS*/ \n\ + \n\ +/*@_fini_PROLOG_BEGINS*/ \n\ + .section .fini, \"ax\", @progbits \n\ + .globl _fini \n\ + .type _fini,@function \n\ + .usepv _fini,std \n\ +_fini: \n\ + ldgp $29, 0($27) \n\ + subq $30, 16, $30 \n\ + stq $26, 0($30) \n\ + stq $29, 8($30) \n\ + .align 3 \n\ +/*@_fini_PROLOG_ENDS*/ \n\ + \n\ +/*@_fini_EPILOG_BEGINS*/ \n\ + .section .fini, \"ax\", @progbits \n\ + ldq $26, 0($30) \n\ + ldq $29, 8($30) \n\ + addq $30, 16, $30 \n\ + ret \n\ +/*@_fini_EPILOG_ENDS*/ \n\ + \n\ +/*@TRAILER_BEGINS*/ \n\ +"); diff --git a/libpthread/nptl/sysdeps/alpha/jmpbuf-unwind.h b/libpthread/nptl/sysdeps/alpha/jmpbuf-unwind.h new file mode 100644 index 000000000..5cef8b1cf --- /dev/null +++ b/libpthread/nptl/sysdeps/alpha/jmpbuf-unwind.h @@ -0,0 +1,31 @@ +/* Copyright (C) 2003, 2004 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Jakub Jelinek <jakub@redhat.com>, 2003. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +#include <setjmp.h> +#include <stdint.h> +#include <unwind.h> + +#define _JMPBUF_CFA_UNWINDS_ADJ(_jmpbuf, _context, _adj) \ + _JMPBUF_UNWINDS_ADJ (_jmpbuf, (void *) _Unwind_GetCFA (_context), _adj) + +#define _JMPBUF_UNWINDS_ADJ(_jmpbuf, _address, _adj) \ + ((uintptr_t) (_address) - (_adj) < (uintptr_t) (_jmpbuf)[JB_SP] - (_adj)) + +/* We use the normal lobngjmp for unwinding. */ +#define __libc_unwind_longjmp(buf, val) __libc_longjmp (buf, val) diff --git a/libpthread/nptl/sysdeps/alpha/pthread_spin_lock.S b/libpthread/nptl/sysdeps/alpha/pthread_spin_lock.S new file mode 100644 index 000000000..ce6cd41a4 --- /dev/null +++ b/libpthread/nptl/sysdeps/alpha/pthread_spin_lock.S @@ -0,0 +1,45 @@ +/* Copyright (C) 2003 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Richard Henderson <rth@twiddle.net>, 2003. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + + + .text + .align 4 + + .globl pthread_spin_lock + .ent pthread_spin_lock +pthread_spin_lock: + .frame $sp, 0, $26, 0 + .prologue 0 + +0: ldl_l $1, 0($16) + lda $2, 1 + lda $0, 0 + bne $1, 1f + + stl_c $2, 0($16) + beq $2, 1f + mb + ret + +1: ldl $1, 0($16) + bne $1, 1b + unop + br 0b + + .end pthread_spin_lock diff --git a/libpthread/nptl/sysdeps/alpha/pthread_spin_trylock.S b/libpthread/nptl/sysdeps/alpha/pthread_spin_trylock.S new file mode 100644 index 000000000..0948da698 --- /dev/null +++ b/libpthread/nptl/sysdeps/alpha/pthread_spin_trylock.S @@ -0,0 +1,46 @@ +/* Copyright (C) 2003 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Richard Henderson <rth@twiddle.net>, 2003. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + + +#define _ERRNO_H 1 +#include <bits/errno.h> + + .text + .align 4 + + .globl pthread_spin_trylock + .ent pthread_spin_trylock +pthread_spin_trylock: + .frame $sp, 0, $26, 0 + .prologue 0 + +0: ldl_l $1, 0($16) + lda $2, 1 + lda $0, EBUSY + bne $1, 1f + + stl_c $2, 0($16) + beq $2, 2f + mb + lda $0, 0 + +1: ret +2: br 0b + + .end pthread_spin_trylock diff --git a/libpthread/nptl/sysdeps/alpha/pthreaddef.h b/libpthread/nptl/sysdeps/alpha/pthreaddef.h new file mode 100644 index 000000000..26c4daf7b --- /dev/null +++ b/libpthread/nptl/sysdeps/alpha/pthreaddef.h @@ -0,0 +1,38 @@ +/* Copyright (C) 2003 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +/* Default stack size. */ +#define ARCH_STACK_DEFAULT_SIZE (4 * 1024 * 1024) + +/* Required stack pointer alignment at beginning. The ABI requires 16. */ +#define STACK_ALIGN 16 + +/* Minimal stack size after allocating thread descriptor and guard size. */ +#define MINIMAL_REST_STACK 4096 + +/* Alignment requirement for TCB. */ +#define TCB_ALIGNMENT 16 + +/* Location of current stack frame. */ +#define CURRENT_STACK_FRAME __builtin_frame_address (0) + +/* XXX Until we have a better place keep the definitions here. */ + +/* While there is no such syscall. */ +#define __exit_thread_inline(val) \ + INLINE_SYSCALL (exit, 1, (val)) diff --git a/libpthread/nptl/sysdeps/alpha/tcb-offsets.sym b/libpthread/nptl/sysdeps/alpha/tcb-offsets.sym new file mode 100644 index 000000000..c21a79104 --- /dev/null +++ b/libpthread/nptl/sysdeps/alpha/tcb-offsets.sym @@ -0,0 +1,14 @@ +#include <sysdep.h> +#include <tls.h> + +-- + +-- Abuse tls.h macros to derive offsets relative to the thread register. +-- # define __builtin_thread_pointer() ((void *) 0) +-- # define thread_offsetof(mem) ((void *) &THREAD_SELF->mem - (void *) 0) +-- Ho hum, this doesn't work in gcc4, so Know Things about THREAD_SELF +#define thread_offsetof(mem) (long)(offsetof(struct pthread, mem) - sizeof(struct pthread)) + +MULTIPLE_THREADS_OFFSET thread_offsetof (header.multiple_threads) +PID_OFFSET thread_offsetof (pid) +TID_OFFSET thread_offsetof (tid) diff --git a/libpthread/nptl/sysdeps/alpha/tls.h b/libpthread/nptl/sysdeps/alpha/tls.h new file mode 100644 index 000000000..fa3c832a6 --- /dev/null +++ b/libpthread/nptl/sysdeps/alpha/tls.h @@ -0,0 +1,129 @@ +/* Definition for thread-local data handling. NPTL/Alpha version. + Copyright (C) 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 1 + +# include <dl-sysdep.h> + +#ifndef __ASSEMBLER__ +# include <stdbool.h> +# include <stddef.h> +# include <stdint.h> + +/* Type for the dtv. */ +typedef union dtv +{ + size_t counter; + struct + { + void *val; + bool is_static; + } pointer; +} dtv_t; + +#else /* __ASSEMBLER__ */ +# include <tcb-offsets.h> +#endif /* __ASSEMBLER__ */ + + +/* We require TLS support in the tools. */ +#ifndef HAVE_TLS_SUPPORT +# error "TLS support is required." +#endif + +/* Signal that TLS support is available. */ +# define USE_TLS 1 + +#ifndef __ASSEMBLER__ + +/* Get system call information. */ +# include <sysdep.h> + +/* The TP points to the start of the thread blocks. */ +# define TLS_DTV_AT_TP 1 + +/* Get the thread descriptor definition. */ +# include <nptl/descr.h> + +typedef struct +{ + dtv_t *dtv; + void *private; +} tcbhead_t; + +/* This is the size of the initial TCB. */ +# define TLS_INIT_TCB_SIZE sizeof (tcbhead_t) + +/* Alignment requirements for the initial TCB. */ +# define TLS_INIT_TCB_ALIGN 16 + +/* This is the size of the TCB. */ +# define TLS_TCB_SIZE sizeof (tcbhead_t) + +/* This is the size we need before TCB. */ +# define TLS_PRE_TCB_SIZE sizeof (struct pthread) + +/* Alignment requirements for the TCB. */ +# define TLS_TCB_ALIGN 16 + +/* Install the dtv pointer. The pointer passed is to the element with + index -1 which contain the length. */ +# define INSTALL_DTV(tcbp, dtvp) \ + (((tcbhead_t *) (tcbp))->dtv = (dtvp) + 1) + +/* Install new dtv for current thread. */ +# define INSTALL_NEW_DTV(dtv) \ + (THREAD_DTV() = (dtv)) + +/* Return dtv of given thread descriptor. */ +# define GET_DTV(tcbp) \ + (((tcbhead_t *) (tcbp))->dtv) + +/* Code to initially initialize the thread pointer. This might need + special attention since 'errno' is not yet available and if the + operation can cause a failure 'errno' must not be touched. */ +# define TLS_INIT_TP(tcbp, secondcall) \ + (__builtin_set_thread_pointer ((void *)(tcbp)), NULL) + +/* Return the address of the dtv for the current thread. */ +# define THREAD_DTV() \ + (((tcbhead_t *) __builtin_thread_pointer ())->dtv) + +/* Return the thread descriptor for the current thread. */ +# define THREAD_SELF \ + ((struct pthread *)__builtin_thread_pointer () - 1) + +/* Magic for libthread_db to know how to do THREAD_SELF. */ +# define DB_THREAD_SELF \ + REGISTER (64, 64, 32 * 8, -sizeof (struct pthread)) + +/* Access to data in the thread descriptor is easy. */ +#define THREAD_GETMEM(descr, member) \ + descr->member +#define THREAD_GETMEM_NC(descr, member, idx) \ + descr->member[idx] +#define THREAD_SETMEM(descr, member, value) \ + descr->member = (value) +#define THREAD_SETMEM_NC(descr, member, idx, value) \ + descr->member[idx] = (value) + +#endif /* __ASSEMBLER__ */ + +#endif /* tls.h */ |