diff options
Diffstat (limited to 'ports/sysdeps/unix/sysv/linux/aarch64/nptl/sysdep-cancel.h')
| -rw-r--r-- | ports/sysdeps/unix/sysv/linux/aarch64/nptl/sysdep-cancel.h | 205 |
1 files changed, 0 insertions, 205 deletions
diff --git a/ports/sysdeps/unix/sysv/linux/aarch64/nptl/sysdep-cancel.h b/ports/sysdeps/unix/sysv/linux/aarch64/nptl/sysdep-cancel.h deleted file mode 100644 index f6903b5dd8..0000000000 --- a/ports/sysdeps/unix/sysv/linux/aarch64/nptl/sysdep-cancel.h +++ /dev/null @@ -1,205 +0,0 @@ -/* Copyright (C) 2003-2014 Free Software Foundation, Inc. - - This file is part of the GNU C Library. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; if not, see - <http://www.gnu.org/licenses/>. */ - -#include <sysdep.h> -#include <tls.h> -#ifndef __ASSEMBLER__ -# include <nptl/pthreadP.h> -#endif - -#if !defined NOT_IN_libc || defined IS_IN_libpthread || defined IS_IN_librt - -# undef PSEUDO -# define PSEUDO(name, syscall_name, args) \ - .section ".text"; \ - .type __##syscall_name##_nocancel,%function; \ - .globl __##syscall_name##_nocancel; \ - __##syscall_name##_nocancel: \ - cfi_startproc; \ - DO_CALL (syscall_name, args); \ - PSEUDO_RET; \ - cfi_endproc; \ - .size __##syscall_name##_nocancel,.-__##syscall_name##_nocancel; \ - ENTRY (name); \ - SINGLE_THREAD_P; \ - DOARGS_##args; \ - bne .Lpseudo_cancel; \ - DO_CALL (syscall_name, 0); \ - UNDOARGS_##args; \ - cmn x0, 4095; \ - PSEUDO_RET; \ - .Lpseudo_cancel: \ - DOCARGS_##args; /* save syscall args etc. around CENABLE. */ \ - CENABLE; \ - mov x16, x0; /* put mask in safe place. */ \ - UNDOCARGS_##args; /* restore syscall args. */ \ - mov x8, SYS_ify (syscall_name); /* do the call. */ \ - svc 0; \ - str x0, [sp, -16]!; /* save syscall return value. */ \ - cfi_adjust_cfa_offset (16); \ - mov x0, x16; /* get mask back. */ \ - CDISABLE; \ - ldr x0, [sp], 16; \ - cfi_adjust_cfa_offset (-16); \ - ldr x30, [sp], 16; \ - cfi_adjust_cfa_offset (-16); \ - cfi_restore (x30); \ - UNDOARGS_##args; \ - cmn x0, 4095; - -# define DOCARGS_0 \ - str x30, [sp, -16]!; \ - cfi_adjust_cfa_offset (16); \ - cfi_rel_offset (x30, 0) - -# define UNDOCARGS_0 - -# define DOCARGS_1 \ - DOCARGS_0; \ - str x0, [sp, -16]!; \ - cfi_adjust_cfa_offset (16); \ - cfi_rel_offset (x0, 0) - -# define UNDOCARGS_1 \ - ldr x0, [sp], 16; \ - cfi_restore (x0); \ - cfi_adjust_cfa_offset (-16); \ - -# define DOCARGS_2 \ - DOCARGS_1; \ - str x1, [sp, -16]!; \ - cfi_adjust_cfa_offset (16); \ - cfi_rel_offset (x1, 0) - -# define UNDOCARGS_2 \ - ldr x1, [sp], 16; \ - cfi_restore (x1); \ - cfi_adjust_cfa_offset (-16); \ - UNDOCARGS_1 - -# define DOCARGS_3 \ - DOCARGS_2; \ - str x2, [sp, -16]!; \ - cfi_adjust_cfa_offset (16); \ - cfi_rel_offset (x2, 0) - -# define UNDOCARGS_3 \ - ldr x2, [sp], 16; \ - cfi_restore (x2); \ - cfi_adjust_cfa_offset (-16); \ - UNDOCARGS_2 - -# define DOCARGS_4 \ - DOCARGS_3; \ - str x3, [sp, -16]!; \ - cfi_adjust_cfa_offset (16); \ - cfi_rel_offset (x3, 0) - -# define UNDOCARGS_4 \ - ldr x3, [sp], 16; \ - cfi_restore (x3); \ - cfi_adjust_cfa_offset (-16); \ - UNDOCARGS_3 - -# define DOCARGS_5 \ - DOCARGS_4; \ - str x4, [sp, -16]!; \ - cfi_adjust_cfa_offset (16); \ - cfi_rel_offset (x4, 0) - -# define UNDOCARGS_5 \ - ldr x4, [sp], 16; \ - cfi_restore (x4); \ - cfi_adjust_cfa_offset (-16); \ - UNDOCARGS_4 - -# define DOCARGS_6 \ - DOCARGS_5; \ - str x5, [sp, -16]!; \ - cfi_adjust_cfa_offset (16); \ - cfi_rel_offset (x5, 0) - -# define UNDOCARGS_6 \ - ldr x5, [sp], 16; \ - cfi_restore (x5); \ - cfi_adjust_cfa_offset (-16); \ - UNDOCARGS_5 - -# ifdef IS_IN_libpthread -# define CENABLE bl __pthread_enable_asynccancel -# define CDISABLE bl __pthread_disable_asynccancel -# define __local_multiple_threads __pthread_multiple_threads -# elif !defined NOT_IN_libc -# define CENABLE bl __libc_enable_asynccancel -# define CDISABLE bl __libc_disable_asynccancel -# define __local_multiple_threads __libc_multiple_threads -# elif defined IS_IN_librt -# define CENABLE bl __librt_enable_asynccancel -# define CDISABLE bl __librt_disable_asynccancel -# else -# error Unsupported library -# endif - -# if defined IS_IN_libpthread || !defined NOT_IN_libc -# ifndef __ASSEMBLER__ -extern int __local_multiple_threads attribute_hidden; -# define SINGLE_THREAD_P __builtin_expect (__local_multiple_threads == 0, 1) -# else -# define SINGLE_THREAD_P \ - adrp x16, __local_multiple_threads; \ - add x16, x16, #:lo12:__local_multiple_threads; \ - ldr x16, [x16]; \ - cmp x16, 0; -# endif -# else -/* There is no __local_multiple_threads for librt, so use the TCB. */ -# ifndef __ASSEMBLER__ -# define SINGLE_THREAD_P \ - __builtin_expect (THREAD_GETMEM (THREAD_SELF, \ - header.multiple_threads) == 0, 1) -# else -# define SINGLE_THREAD_P \ - stp x0, x30, [sp, -16]!; \ - cfi_adjust_cfa_offset (16); \ - cfi_rel_offset (x0, 0); \ - cfi_rel_offset (x30, 8); \ - bl __read_tp; \ - sub x0, x0, PTHREAD_SIZEOF; \ - ldr x16, [x0, PTHREAD_MULTIPLE_THREADS_OFFSET]; \ - ldp x0, x30, [sp], 16; \ - cfi_restore (x0); \ - cfi_restore (x30); \ - cfi_adjust_cfa_offset (-16); \ - cmp x16, 0 -# define SINGLE_THREAD_P_PIC(x) SINGLE_THREAD_P -# endif -# endif - -#elif !defined __ASSEMBLER__ - -/* For rtld, et cetera. */ -# define SINGLE_THREAD_P 1 -# define NO_CANCELLATION 1 - -#endif - -#ifndef __ASSEMBLER__ -# define RTLD_SINGLE_THREAD_P \ - __builtin_expect (THREAD_GETMEM (THREAD_SELF, \ - header.multiple_threads) == 0, 1) -#endif |