/* Copyright (C) 1999-2021 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 . */ #include #include #include ENTRY(__syscall_error) #if RTLD_PRIVATE_ERRNO /* * Note that the gp has to be set properly for this to work. * As long as all syscalls are in the same load unit * (executable or shared library) as this routine, we should * be fine. Otherwise, we would have to first load the global * pointer register from __gp. */ addl r2=@gprel(rtld_errno),gp ;; st4 [r2]=r8 mov r8=-1 #else # if IS_IN (libc) # define SYSCALL_ERROR_ERRNO __libc_errno # else # define SYSCALL_ERROR_ERRNO errno # endif addl r2=@ltoff(@tprel(SYSCALL_ERROR_ERRNO)), gp;; ld8 r2=[r2] mov r3=r8;; mov r8=-1 add r2=r2,r13;; st4 [r2]=r3 #endif ret // ret is #define'd in syscall.h! END(__syscall_error) ENTRY(__ia64_syscall) mov r15=r37 /* syscall number */ break __IA64_BREAK_SYSCALL cmp.eq p6,p0=-1,r10 /* r10 = -1 on error */ (p6) br.cond.spnt.few __syscall_error ret PSEUDO_END(__ia64_syscall)