Mercurial > pub > dyncall > dyncall
annotate 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 |
| rev | line source |
|---|---|
| 0 | 1 /* |
| 2 | |
| 3 Package: dyncall | |
| 4 Library: dyncallback | |
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5 File: dyncallback/dyncall_callback_arm64.S |
| 0 | 6 Description: Callback Thunk - Implementation for ARM64 / ARMv8 / AAPCS64 |
| 7 License: | |
| 8 | |
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9 Copyright (c) 2015-2020 Daniel Adler <dadler@uni-goettingen.de>, |
| 281 | 10 Tassilo Philipp <tphilipp@potion-studios.com> |
| 0 | 11 |
| 12 Permission to use, copy, modify, and distribute this software for any | |
| 13 purpose with or without fee is hereby granted, provided that the above | |
| 14 copyright notice and this permission notice appear in all copies. | |
| 15 | |
| 16 THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES | |
| 17 WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF | |
| 18 MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR | |
| 19 ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES | |
| 20 WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN | |
| 21 ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF | |
| 22 OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. | |
| 23 | |
| 24 */ | |
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25 |
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26 #include "../portasm/portasm-arm64.S" |
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27 BEGIN_ASM |
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28 |
| 0 | 29 // struct DCCallback |
| 30 // type off size | |
| 31 // ---------|------|------ | |
| 32 // DCThunk | 0 | 32 | |
| 33 // handler | 32 | 8 | |
| 34 // userdata | 40 | 8 | |
| 35 | |
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36 TEXTAREA |
| 0 | 37 |
| 38 GLOBAL_C(dcCallbackThunkEntry) | |
| 39 ENTRY_C(dcCallbackThunkEntry) | |
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40 ALIGN(4) |
| 0 | 41 |
| 42 // input: | |
| 43 // x9: DCCallback* pcb | |
| 44 // x0..x7 ?? GP regs | |
| 45 // d0..d7 ?? FP/SIMD regs | |
| 46 // sp... ?? arguments on stack | |
| 47 // | |
| 48 // locals: | |
| 49 // type off size | |
| 50 // ---------|------|------ | |
| 51 // Frame 0 16 | |
| 52 // DCArgs 16 168 | |
| 53 // DCValue 184 16 | |
| 54 // | |
| 55 // size 200 | |
| 56 // aligned 208 | |
| 57 // | |
| 58 | |
| 59 // locals: | |
| 60 // x10: sp | |
| 61 // x11: DCArgs* args | |
| 62 | |
| 63 mov x10, sp | |
| 64 stp x29, x30, [sp, #-208 ]! | |
| 65 mov x29, sp | |
| 66 | |
| 67 add x11, x29 , #16 | |
| 68 | |
| 69 // save integer registers | |
| 70 | |
| 71 stp x0, x1, [x11, #0 ] | |
| 72 stp x2, x3, [x11, #16] | |
| 73 stp x4, x5, [x11, #32] | |
| 74 stp x6, x7, [x11, #48] | |
| 75 | |
| 76 stp d0, d1, [x11, #64] | |
| 77 stp d2, d3, [x11, #80] | |
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78 stp d4, d5, [x11, #96] |
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79 stp d6, d7, [x11, #112] |
| 0 | 80 |
| 81 eor x12, x12, x12 | |
| 82 stp x10,x12,[x11, #128] // sp=sp, i=0, f=0 | |
| 83 | |
| 84 str x12, [x11, #144] // s=0, reserved=0 | |
| 85 | |
| 86 | |
| 87 // call handler: | |
| 88 // args: | |
| 89 // x0: DCCallback* pcb | |
| 90 // x1: DCArgs* args | |
| 91 // x2: DCValue* result | |
| 92 // x3: void* userdata | |
| 93 | |
| 94 mov x0 , x9 | |
| 95 add x1 , x29 , #16 | |
| 96 add x2 , x29 , #184 | |
| 97 ldr x3 , [x9 , #40] | |
| 98 | |
| 99 ldr x11, [x9 , #32] | |
| 100 blr x11 | |
| 101 | |
| 102 and w0, w0, #255 | |
| 103 cmp w0, 'f' | |
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104 b.eq LABELUSE(retf) |
| 0 | 105 cmp w0, 'd' |
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106 b.eq LABELUSE(retf) |
| 0 | 107 |
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108 LABELDEF(reti) |
| 0 | 109 ldr x0, [x29, #184] |
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110 b LABELUSE(ret) |
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111 LABELDEF(retf) |
| 0 | 112 ldr d0, [x29, #184] |
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113 LABELDEF(ret) |
| 0 | 114 ldp x29, x30, [sp], #208 |
| 115 ret | |
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116 |
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117 |
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118 END_PROC |
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119 END_ASM |
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120 |