diff options
Diffstat (limited to 'sysdeps/unix/sysv/linux/m68k/m68k-helpers.S')
| -rw-r--r-- | sysdeps/unix/sysv/linux/m68k/m68k-helpers.S | 95 |
1 files changed, 0 insertions, 95 deletions
diff --git a/sysdeps/unix/sysv/linux/m68k/m68k-helpers.S b/sysdeps/unix/sysv/linux/m68k/m68k-helpers.S deleted file mode 100644 index 5e3ffb0a7f..0000000000 --- a/sysdeps/unix/sysv/linux/m68k/m68k-helpers.S +++ /dev/null @@ -1,95 +0,0 @@ -/* Copyright (C) 2010-2019 Free Software Foundation, Inc. - This file is part of the GNU C Library. - Contributed by Maxim Kuvyrkov <maxim@codesourcery.com>, 2010. - - 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. - - In addition to the permissions in the GNU Lesser General Public - License, the Free Software Foundation gives you unlimited - permission to link the compiled version of this file with other - programs, and to distribute those programs without any restriction - coming from the use of this file. (The GNU Lesser General Public - License restrictions do apply in other respects; for example, they - cover modification of the file, and distribution when not linked - into another program.) - - Note that people who make modified versions of this file are not - obligated to grant this special exception for their modified - versions; it is their choice whether to do so. The GNU Lesser - General Public License gives permission to release a modified - version without this exception; this exception also makes it - possible to release a modified version which carries forward this - exception. - - 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 <m68k-vdso.h> - - .text - - .hidden __vdso_read_tp_stub -ENTRY (__vdso_read_tp_stub) - move.l #__NR_get_thread_area, %d0 - trap #0 - move.l %d0, %a0 - rts -END (__vdso_read_tp_stub) - -# ifdef SHARED -/* GCC will emit calls to this routine. Linux has an - equivalent helper function (which clobbers fewer registers than - a normal function call) in a vdso; tail call to the - helper. */ -# if IS_IN (rtld) -/* rtld gets a hidden copy of __m68k_read_tp. */ - .hidden __m68k_read_tp -# endif -ENTRY (__m68k_read_tp) - LOAD_GOT (%a0) - move.l M68K_VDSO_SYMBOL (__vdso_read_tp)@GOT(%a0), %a0 - move.l (%a0), %a0 - jmp (%a0) -END (__m68k_read_tp) - -/* The following two stubs are for macros in atomic.h, they can't - clobber anything. */ - - .hidden __vdso_atomic_cmpxchg_32_stub -ENTRY (__vdso_atomic_cmpxchg_32_stub) - move.l %d2, -(%sp) - cfi_adjust_cfa_offset (4) - cfi_rel_offset (%d2, 0) - move.l %d0, %d2 - move.l #SYS_ify (atomic_cmpxchg_32), %d0 - trap #0 - move.l (%sp)+, %d2 - cfi_adjust_cfa_offset (-4) - cfi_restore (%d2) - rts -END (__vdso_atomic_cmpxchg_32_stub) - - .hidden __vdso_atomic_barrier_stub -ENTRY (__vdso_atomic_barrier_stub) - move.l %d0, -(%sp) - cfi_adjust_cfa_offset (4) - move.l #SYS_ify (atomic_barrier), %d0 - trap #0 - move.l (%sp)+, %d0 - cfi_adjust_cfa_offset (-4) - rts -END (__vdso_atomic_barrier_stub) -# else /* !SHARED */ -/* If the vDSO is not available, use a syscall to get TP. */ - strong_alias (__vdso_read_tp_stub, __m68k_read_tp) -# endif /* SHARED */ |