diff options
Diffstat (limited to 'sysdeps/unix/alpha/sysdep.S')
| -rw-r--r-- | sysdeps/unix/alpha/sysdep.S | 65 |
1 files changed, 0 insertions, 65 deletions
diff --git a/sysdeps/unix/alpha/sysdep.S b/sysdeps/unix/alpha/sysdep.S deleted file mode 100644 index 9e5b58cb7c..0000000000 --- a/sysdeps/unix/alpha/sysdep.S +++ /dev/null @@ -1,65 +0,0 @@ -/* Copyright (C) 1993-2017 Free Software Foundation, Inc. - This file is part of the GNU C Library. - Contributed by Brendan Kehoe (brendan@zen.org). - - 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> - -#if defined(PIC) - /* Put this at the end of libc's text segment so that all of - the direct branches from the syscalls are forward, and - thus predicted not taken. */ - .section .text.last, "ax", @progbits -#else - .text -#endif - -#if IS_IN (libc) -# define SYSCALL_ERROR_ERRNO __libc_errno -#else -# define SYSCALL_ERROR_ERRNO errno -#endif - - .align 4 - .globl __syscall_error - .ent __syscall_error -__syscall_error: - /* When building a shared library, we branch here without having - loaded the GP. Nor, since it was a direct branch, have we - loaded PV with our address. - - When building a static library, we tail call here from another - object file, possibly with a different GP, and must return with - the GP of our caller in place so that linker relaxation works. - - Both issues are solved by computing the GP into T1 instead of - clobbering the traditional GP register. */ - .prologue 0 - mov v0, t0 - br t1, 1f -1: ldah t1, 0(t1) !gpdisp!1 - call_pal PAL_rduniq - - lda t1, 0(t1) !gpdisp!1 - ldq t1, SYSCALL_ERROR_ERRNO(t1) !gottprel - addq v0, t1, t1 - lda v0, -1 - - stl t0, 0(t1) - ret - - .end __syscall_error |