| /* Copyright (C) 2002, 2003, 2004, 2006 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, write to the Free |
| Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA |
| 02111-1307 USA. */ |
| |
| #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 |
| |
| # if USE___THREAD |
| # 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 |
| # else |
| # 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; \ |
| mov loc4 = r1;; \ |
| br.call.sptk.many b0 = __errno_location;; \ |
| st4 [r8] = loc3; \ |
| mov r1 = loc4; \ |
| mov rp = loc1; \ |
| mov r8 = -1; \ |
| mov ar.pfs = loc0 |
| # endif |
| |
| # 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 |