diff options
Diffstat (limited to 'sysdeps/csky/abiv2/dl-trampoline.S')
| -rw-r--r-- | sysdeps/csky/abiv2/dl-trampoline.S | 50 |
1 files changed, 50 insertions, 0 deletions
diff --git a/sysdeps/csky/abiv2/dl-trampoline.S b/sysdeps/csky/abiv2/dl-trampoline.S new file mode 100644 index 0000000000..b6d6268006 --- /dev/null +++ b/sysdeps/csky/abiv2/dl-trampoline.S @@ -0,0 +1,50 @@ +/* PLT trampolines. C-SKY ABIV2 version. + Copyright (C) 2018 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/>. */ + +/* This function is not called directly. It is jumped when attempting to + use a symbol that has not yet been resolved. + + .plt*: + subi r0, 32 + stw r2, (r0, 0) + stw r3, (r0, 4) + lrw r3, #offset + ldw r2, (gb, 8) + jmp r2 + */ + +#include <sysdep.h> + + .globl _dl_runtime_resolve; + .type _dl_runtime_resolve,@function; + .align 4; +_dl_runtime_resolve: + subi sp, 20 + stm a0-a3, (sp) + stw lr, (sp, 16) + /* a0 = id, a1 = offset(do it in plt*). */ + ldw a0, (gb, 4) + movi a1, 12 + mult a1, t1 + bsr _dl_fixup + mov t0, a0 + ldw lr, (sp, 16) + ldm a0-a3, (sp) + addi sp, 20 + jmp t0 + .size _dl_runtime_resolve,.-_dl_runtime_resolve |