Mercurial > pub > dyncall > dyncall
view dyncallback/dyncall_callback_arm64.S @ 533:71c884e610f0
- integration of patches from Raphael Luba, Thekla, Inc.:
* integration of aggregate-by-value (struct, union) support patch for x64 (win and sysv)
* windows/x64 asm additions to specify how stack unwinds (help for debuggers, exception handling, etc.)
* see Changelog for details
- new calling convention modes for thiscalls (platform agnostic, was specific before)
* new signature character for platform agnostic thiscalls ('*' / DC_SIGCHAR_CC_THISCALL)
- dcCallF(), dcVCallF(), dcArgF() and dcVArgF():
* added support for aggregates-by-value (wasn't part of patch)
* change that those functions don't implicitly call dcReset() anymore, which was unflexible (breaking change)
- added macros to feature test implementation for aggregate-by-value and syscall support
- changed libdyncall_s.lib and libdyncallback_s.lib order in callback test makefiles, as some toolchains are picky about order
- doc:
* man page updates to describe aggregate interface
* manual overview changes to highlight platforms with aggregate-by-value support
- test/plain: replaced tests w/ old/stale sctruct interface with new aggregate one
author | Tassilo Philipp |
---|---|
date | Thu, 21 Apr 2022 13:35:47 +0200 |
parents | 451299d50c1a |
children | cab0031c6691 |
line wrap: on
line source
/* Package: dyncall Library: dyncallback File: dyncallback/dyncall_callback_arm64.S Description: Callback Thunk - Implementation for ARM64 / ARMv8 / AAPCS64 License: Copyright (c) 2015-2020 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 "../portasm/portasm-arm64.S" BEGIN_ASM // struct DCCallback // type off size // ---------|------|------ // DCThunk | 0 | 32 // handler | 32 | 8 // userdata | 40 | 8 TEXTAREA GLOBAL_C(dcCallbackThunkEntry) ENTRY_C(dcCallbackThunkEntry) ALIGN(4) // input: // x9: DCCallback* pcb // x0..x7 ?? GP regs // d0..d7 ?? FP/SIMD regs // sp... ?? arguments on stack // // locals: // type off size // ---------|------|------ // Frame 0 16 // DCArgs 16 168 // DCValue 184 16 // // size 200 // aligned 208 // // locals: // x10: sp // x11: DCArgs* args mov x10, sp stp x29, x30, [sp, #-208 ]! mov x29, sp add x11, x29 , #16 // save integer registers stp x0, x1, [x11, #0 ] stp x2, x3, [x11, #16] stp x4, x5, [x11, #32] stp x6, x7, [x11, #48] stp d0, d1, [x11, #64] stp d2, d3, [x11, #80] stp d4, d5, [x11, #96] stp d6, d7, [x11, #112] eor x12, x12, x12 stp x10,x12,[x11, #128] // sp=sp, i=0, f=0 str x12, [x11, #144] // s=0, reserved=0 // call handler: // args: // x0: DCCallback* pcb // x1: DCArgs* args // x2: DCValue* result // x3: void* userdata mov x0 , x9 add x1 , x29 , #16 add x2 , x29 , #184 ldr x3 , [x9 , #40] ldr x11, [x9 , #32] blr x11 and w0, w0, #255 cmp w0, 'f' b.eq LABELUSE(retf) cmp w0, 'd' b.eq LABELUSE(retf) LABELDEF(reti) ldr x0, [x29, #184] b LABELUSE(ret) LABELDEF(retf) ldr d0, [x29, #184] LABELDEF(ret) ldp x29, x30, [sp], #208 ret END_PROC END_ASM