diff options
Diffstat (limited to 'REORG.TODO/sysdeps/unix/sysv/linux/ia64/sysdep.S')
| -rw-r--r-- | REORG.TODO/sysdeps/unix/sysv/linux/ia64/sysdep.S | 58 |
1 files changed, 58 insertions, 0 deletions
diff --git a/REORG.TODO/sysdeps/unix/sysv/linux/ia64/sysdep.S b/REORG.TODO/sysdeps/unix/sysv/linux/ia64/sysdep.S new file mode 100644 index 0000000000..a3004adc00 --- /dev/null +++ b/REORG.TODO/sysdeps/unix/sysv/linux/ia64/sysdep.S @@ -0,0 +1,58 @@ +/* Copyright (C) 1999-2017 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by David Mosberger-Tang <davidm@hpl.hp.com>. + + 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 <features.h> +#include <tls.h> + +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 __BREAK_SYSCALL + cmp.eq p6,p0=-1,r10 /* r10 = -1 on error */ +(p6) br.cond.spnt.few __syscall_error + ret +PSEUDO_END(__ia64_syscall) |