diff options
Diffstat (limited to 'sysdeps/nios2/dl-trampoline.S')
| -rw-r--r-- | sysdeps/nios2/dl-trampoline.S | 79 |
1 files changed, 0 insertions, 79 deletions
diff --git a/sysdeps/nios2/dl-trampoline.S b/sysdeps/nios2/dl-trampoline.S deleted file mode 100644 index 1dbf5c14eb..0000000000 --- a/sysdeps/nios2/dl-trampoline.S +++ /dev/null @@ -1,79 +0,0 @@ -/* PLT trampolines. Nios II version. - Copyright (C) 2005-2017 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 - <http://www.gnu.org/licenses/>. */ - -#include <sysdep.h> -#include <libc-symbols.h> - - .text - .globl _dl_runtime_resolve - cfi_startproc -_dl_runtime_resolve: -/* The runtime resolver receives the original function arguments in r4 - through r7, the shared library identifier from GOT[1]? in r14, and the - relocation index times four in r15. It updates the corresponding PLT GOT - entry so that the PLT entry will transfer control directly to the target - in the future, and then transfers control to the target. */ - /* Save arguments and return address. */ - subi sp, sp, 28 - cfi_adjust_cfa_offset (28) - stw r22, 24(sp) - cfi_rel_offset (r22, 24) - stw r8, 20(sp) /* save r8, because this might be a call to mcount */ - cfi_rel_offset (r8, 20) - stw r7, 16(sp) - cfi_rel_offset (r7, 16) - stw r6, 12(sp) - cfi_rel_offset (r6, 12) - stw r5, 8(sp) - cfi_rel_offset (r5, 8) - stw r4, 4(sp) - cfi_rel_offset (r4, 4) - stw ra, 0(sp) - cfi_rel_offset (ra, 0) - - /* Get pointer to linker struct. */ - mov r4, r14 - - /* Get the relocation offset. We're given a multiple of 4 and - need a multiple of 12, so multiply by 3. */ - slli r5, r15, 1 - add r5, r5, r15 - - /* Call the fixup routine. */ - nextpc r22 -1: movhi r2, %hiadj(_gp_got - 1b) - addi r2, r2, %lo(_gp_got - 1b) - add r22, r22, r2 - ldw r2, %call(_dl_fixup)(r22) - callr r2 - - /* Restore the arguments and return address. */ - ldw ra, 0(sp) - ldw r4, 4(sp) - ldw r5, 8(sp) - ldw r6, 12(sp) - ldw r7, 16(sp) - ldw r8, 20(sp) - ldw r22, 24(sp) - addi sp, sp, 28 - cfi_adjust_cfa_offset (-28) - - /* Jump to the newly found address. */ - jmp r2 - - cfi_endproc |