Mercurial > pub > dyncall > dyncall
diff dyncallback/dyncall_thunk_arm64.c @ 0:3e629dc19168
initial from svn dyncall-1745
author | Daniel Adler |
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date | Thu, 19 Mar 2015 22:24:28 +0100 |
parents | |
children | f5577f6bf97a |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/dyncallback/dyncall_thunk_arm64.c Thu Mar 19 22:24:28 2015 +0100 @@ -0,0 +1,64 @@ +/* + + Package: dyncall + Library: dyncallback + File: dyncallback/dyncall_thunk_arm64.c + Description: Thunk - Implementation for ARM64 / ARMv8 / AAPCS64 + License: + + Copyright (c) 2015 Daniel Adler <dadler@uni-goettingen.de>, + Tassilo Philipp <tphilipp@potion-studios.com> + + Permission to use, copy, modify, and distribute this software for any + purpose with or without fee is hereby granted, provided that the above + copyright notice and this permission notice appear in all copies. + + THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES + WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF + MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR + ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN + ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF + OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + +*/ + + + +#include "dyncall_thunk.h" + +/* + +Thunk Register: x9 + +Thunk: + adr x9, Thunk + ldr x10, .target + br x10 + nop +.target: + .xword 0 + +-- Encoded in: + +0000000000000000 <Thunk>: + 0: 10000009 adr x9, 0 <Thunk> + 4: 5800006a ldr x10, 10 <.target> + 8: d61f0140 br x10 + c: d503201f nop + +0000000000000010 <.target>: + 10: 76543210 .word 0x76543210 + 14: fedcba98 .word 0xfedcba98 +*/ + +void dcbInitThunk(DCThunk* p, void (*entry)()) +{ + p->code[0] = 0x10000009; // adr x9, 0 + p->code[1] = 0x5800006a; // ldr x9, entry + p->code[2] = 0xd61f0140; // br x9 + p->code[3] = 0xd503201f; // nop + p->entry = entry; // entry: + // .xword 0 +} +