Mercurial > pub > dyncall > dyncall
view dyncallback/dyncall_args_x86.c @ 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 | f5577f6bf97a |
children | 111236b31c75 |
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/* Package: dyncall Library: dyncallback File: dyncallback/dyncall_args_x86.c Description: Callback's Arguments VM - Implementation for x86 License: Copyright (c) 2007-2022 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_args_x86.h" DCint dcbArgInt (DCArgs* p) { return p->vt->i32(p); } DClonglong dcbArgLongLong(DCArgs* p) { return p->vt->i64(p); } DCfloat dcbArgFloat (DCArgs* p) { return p->vt->f32(p); } DCdouble dcbArgDouble (DCArgs* p) { return p->vt->f64(p); } /* promote to integer: bool, char, short, long and pointer */ DCbool dcbArgBool (DCArgs* p) { return ( dcbArgInt(p) == 0 ) ? 0 : 1; } DCchar dcbArgChar (DCArgs* p) { return (char) dcbArgInt(p); } DCshort dcbArgShort (DCArgs* p) { return (short) dcbArgInt(p); } DClong dcbArgLong (DCArgs* p) { return (long) dcbArgInt(p); } DCpointer dcbArgPointer (DCArgs* p) { return (DCpointer) dcbArgInt(p); } /* unsigned types */ DCuint dcbArgUInt (DCArgs* p) { return (DCuint) dcbArgInt(p); } DCuchar dcbArgUChar (DCArgs* p) { return (DCuchar) dcbArgChar(p); } DCushort dcbArgUShort (DCArgs* p) { return (DCushort) dcbArgShort(p); } DCulong dcbArgULong (DCArgs* p) { return (DCulong) dcbArgLong(p); } DCulonglong dcbArgULongLong(DCArgs* p) { return (DCulonglong) dcbArgLongLong(p); } void dcbArgAggr (DCArgs* p, DCpointer target) { /* @@@AGGR not impl */ } void dcbReturnAggr (DCArgs *args, DCValue *result, DCpointer ret) { /* @@@AGGR not impl */ } /* cdecl calling convention */ static int default_i32(DCArgs* args) { return *args->stack_ptr++; } static long long default_i64(DCArgs* args) { long long result = * (long long*) args->stack_ptr; args->stack_ptr += 2; return result; } static float default_f32(DCArgs* args) { float result = * ( (float*) args->stack_ptr ); args->stack_ptr++; return result; } static double default_f64(DCArgs* args) { double result = * ( (double*) args->stack_ptr ); args->stack_ptr += 2; return result; } DCArgsVT dcArgsVT_default = { default_i32, default_i64, default_f32, default_f64 }; /* thiscall (microsoft) calling convention */ static int this_i32(DCArgs* args) { if(args->fast_data[0]) { /* ecx register = this pointer */ int thisArg = args->fast_data[0]; args->fast_data[0] = 0; return thisArg; } return *args->stack_ptr++; } DCArgsVT dcArgsVT_this_ms = { this_i32, default_i64, default_f32, default_f64 }; /* fastcall (microsoft) calling convention */ static int fast_i32(DCArgs* args) { if(args->fast_count < 2) return args->fast_data[args->fast_count++]; else return default_i32(args); } DCArgsVT dcArgsVT_fast_ms = { fast_i32, default_i64, default_f32, default_f64 }; /* fastcall (gnu) calling convention */ static long long fast_gnu_i64(DCArgs* args) { args->fast_count += 2; return default_i64(args); } DCArgsVT dcArgsVT_fast_gnu = { fast_i32, fast_gnu_i64, default_f32, default_f64 };