diff options
Diffstat (limited to 'ports/sysdeps/unix/sysv/linux/ia64/nptl/sysdep-cancel.h')
| -rw-r--r-- | ports/sysdeps/unix/sysv/linux/ia64/nptl/sysdep-cancel.h | 204 |
1 files changed, 204 insertions, 0 deletions
diff --git a/ports/sysdeps/unix/sysv/linux/ia64/nptl/sysdep-cancel.h b/ports/sysdeps/unix/sysv/linux/ia64/nptl/sysdep-cancel.h new file mode 100644 index 0000000000..b54408812e --- /dev/null +++ b/ports/sysdeps/unix/sysv/linux/ia64/nptl/sysdep-cancel.h @@ -0,0 +1,204 @@ +/* Copyright (C) 2002, 2003, 2004, 2006, 2011 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Jakub Jelinek <jakub@redhat.com>, 2002. + + 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 + +# ifndef NOT_IN_libc +# define SYSDEP_CANCEL_ERRNO __libc_errno +# else +# define SYSDEP_CANCEL_ERRNO errno +# endif +# define SYSDEP_CANCEL_ERROR(args) \ +.section .gnu.linkonce.t.__syscall_error_##args, "ax"; \ + .align 32; \ + .proc __syscall_error_##args; \ + .global __syscall_error_##args; \ + .hidden __syscall_error_##args; \ + .size __syscall_error_##args, 64; \ +__syscall_error_##args: \ + .prologue; \ + .regstk args, 5, args, 0; \ + .save ar.pfs, loc0; \ + .save rp, loc1; \ + .body; \ + addl loc4 = @ltoff(@tprel(SYSDEP_CANCEL_ERRNO)), gp;; \ + ld8 loc4 = [loc4]; \ + mov rp = loc1;; \ + mov r8 = -1; \ + add loc4 = loc4, r13;; \ + st4 [loc4] = loc3; \ + mov ar.pfs = loc0 + +# ifndef USE_DL_SYSINFO + +# define PSEUDO(name, syscall_name, args) \ +.text; \ +ENTRY (name) \ + adds r14 = MULTIPLE_THREADS_OFFSET, r13;; \ + ld4 r14 = [r14]; \ + mov r15 = SYS_ify(syscall_name);; \ + cmp4.ne p6, p7 = 0, r14; \ +(p6) br.cond.spnt .Lpseudo_cancel;; \ + break __BREAK_SYSCALL;; \ + cmp.eq p6,p0=-1,r10; \ +(p6) br.cond.spnt.few __syscall_error; \ + ret;; \ + .endp name; \ + .proc __GC_##name; \ + .globl __GC_##name; \ + .hidden __GC_##name; \ +__GC_##name: \ +.Lpseudo_cancel: \ + .prologue; \ + .regstk args, 5, args, 0; \ + .save ar.pfs, loc0; \ + alloc loc0 = ar.pfs, args, 5, args, 0; \ + .save rp, loc1; \ + mov loc1 = rp;; \ + .body; \ + CENABLE;; \ + mov loc2 = r8; \ + COPY_ARGS_##args \ + mov r15 = SYS_ify(syscall_name); \ + break __BREAK_SYSCALL;; \ + mov loc3 = r8; \ + mov loc4 = r10; \ + mov out0 = loc2; \ + CDISABLE;; \ + cmp.eq p6,p0=-1,loc4; \ +(p6) br.cond.spnt.few __syscall_error_##args; \ + mov r8 = loc3; \ + mov rp = loc1; \ + mov ar.pfs = loc0; \ +.Lpseudo_end: \ + ret; \ + .endp __GC_##name; \ + SYSDEP_CANCEL_ERROR(args) + +# else /* USE_DL_SYSINFO */ + +# define PSEUDO(name, syscall_name, args) \ +.text; \ +ENTRY (name) \ + .prologue; \ + adds r2 = SYSINFO_OFFSET, r13; \ + adds r14 = MULTIPLE_THREADS_OFFSET, r13; \ + .save ar.pfs, r11; \ + mov r11 = ar.pfs;; \ + .body; \ + ld4 r14 = [r14]; \ + ld8 r2 = [r2]; \ + mov r15 = SYS_ify(syscall_name);; \ + cmp4.ne p6, p7 = 0, r14; \ + mov b7 = r2; \ +(p6) br.cond.spnt .Lpseudo_cancel; \ + br.call.sptk.many b6 = b7;; \ + mov ar.pfs = r11; \ + cmp.eq p6,p0 = -1, r10; \ +(p6) br.cond.spnt.few __syscall_error; \ + ret;; \ + .endp name; \ + .proc __GC_##name; \ + .globl __GC_##name; \ + .hidden __GC_##name; \ +__GC_##name: \ +.Lpseudo_cancel: \ + .prologue; \ + .regstk args, 5, args, 0; \ + .save ar.pfs, loc0; \ + alloc loc0 = ar.pfs, args, 5, args, 0; \ + adds loc4 = SYSINFO_OFFSET, r13; \ + .save rp, loc1; \ + mov loc1 = rp;; \ + .body; \ + ld8 loc4 = [loc4]; \ + CENABLE;; \ + mov loc2 = r8; \ + mov b7 = loc4; \ + COPY_ARGS_##args \ + mov r15 = SYS_ify(syscall_name); \ + br.call.sptk.many b6 = b7;; \ + mov loc3 = r8; \ + mov loc4 = r10; \ + mov out0 = loc2; \ + CDISABLE;; \ + cmp.eq p6,p0=-1,loc4; \ +(p6) br.cond.spnt.few __syscall_error_##args; \ + mov r8 = loc3; \ + mov rp = loc1; \ + mov ar.pfs = loc0; \ +.Lpseudo_end: \ + ret; \ + .endp __GC_##name; \ + SYSDEP_CANCEL_ERROR(args) + +# endif /* USE_DL_SYSINFO */ + +# undef PSEUDO_END +# define PSEUDO_END(name) .endp + +# ifdef IS_IN_libpthread +# define CENABLE br.call.sptk.many b0 = __pthread_enable_asynccancel +# define CDISABLE br.call.sptk.many b0 = __pthread_disable_asynccancel +# elif !defined NOT_IN_libc +# define CENABLE br.call.sptk.many b0 = __libc_enable_asynccancel +# define CDISABLE br.call.sptk.many b0 = __libc_disable_asynccancel +# elif defined IS_IN_librt +# define CENABLE br.call.sptk.many b0 = __librt_enable_asynccancel +# define CDISABLE br.call.sptk.many b0 = __librt_disable_asynccancel +# else +# error Unsupported library +# endif + +# define COPY_ARGS_0 /* Nothing */ +# define COPY_ARGS_1 COPY_ARGS_0 mov out0 = in0; +# define COPY_ARGS_2 COPY_ARGS_1 mov out1 = in1; +# define COPY_ARGS_3 COPY_ARGS_2 mov out2 = in2; +# define COPY_ARGS_4 COPY_ARGS_3 mov out3 = in3; +# define COPY_ARGS_5 COPY_ARGS_4 mov out4 = in4; +# define COPY_ARGS_6 COPY_ARGS_5 mov out5 = in5; +# define COPY_ARGS_7 COPY_ARGS_6 mov out6 = in6; + +# ifndef __ASSEMBLER__ +# define SINGLE_THREAD_P \ + __builtin_expect (THREAD_GETMEM (THREAD_SELF, header.multiple_threads) == 0, 1) +# else +# define SINGLE_THREAD_P \ + adds r14 = MULTIPLE_THREADS_OFFSET, r13 ;; ld4 r14 = [r14] ;; cmp4.ne p6, p7 = 0, r14 +# endif + +#elif !defined __ASSEMBLER__ + +# 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 |