/* Copyright (C) 2002, 2003, 2004 Free Software Foundation, Inc. This file is part of the GNU C Library. Contributed by Jakub Jelinek , 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 #include #ifndef __ASSEMBLER__ # include #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