Mercurial > pub > dyncall > dyncall
view dyncall/dyncall_callf.c @ 27:523c45dfa8fb
- refactored arm calling conventions' callvm code, so that the code that keeps
the caller from overwriting the return value on some platforms also works on
OpenBSD (before we casted the function pointer to have long long as return
type, to hint the caller that there is one, but that triggers an intentional
SIGABRT on OpenBSD for security reasons; now the decl reflects this, directly)
author | cslag |
---|---|
date | Tue, 15 Sep 2015 12:48:52 +0200 |
parents | 3e629dc19168 |
children | f2a8dfd795e8 |
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/* Package: dyncall Library: dyncall File: dyncall/dyncall_callf.c Description: formatted call C interface (extension module) License: Copyright (c) 2007-2015 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_callf.h" // Shareable implementation for argument binding used in ArgF and CallF below. static void dcArgF_impl(DCCallVM* vm, const DCsigchar** sigptr, va_list args) { DCsigchar ch; dcReset(vm); while((ch=*(*sigptr)++) != '\0' && ch != DC_SIGCHAR_ENDARG) { switch(ch) { case DC_SIGCHAR_BOOL: dcArgBool (vm, (DCbool) va_arg(args, DCint )); break; case DC_SIGCHAR_CHAR: dcArgChar (vm, (DCchar) va_arg(args, DCint )); break; case DC_SIGCHAR_UCHAR: dcArgChar (vm, (DCchar)(DCuchar) va_arg(args, DCint )); break; case DC_SIGCHAR_SHORT: dcArgShort (vm, (DCshort) va_arg(args, DCint )); break; case DC_SIGCHAR_USHORT: dcArgShort (vm, (DCshort)(DCushort)va_arg(args, DCint )); break; case DC_SIGCHAR_INT: dcArgInt (vm, (DCint) va_arg(args, DCint )); break; case DC_SIGCHAR_UINT: dcArgInt (vm, (DCint)(DCuint) va_arg(args, DCint )); break; case DC_SIGCHAR_LONG: dcArgLong (vm, (DClong) va_arg(args, DClong )); break; case DC_SIGCHAR_ULONG: dcArgLong (vm, (DCulong) va_arg(args, DClong )); break; case DC_SIGCHAR_LONGLONG: dcArgLongLong(vm, (DClonglong) va_arg(args, DClonglong)); break; case DC_SIGCHAR_ULONGLONG: dcArgLongLong(vm, (DCulonglong) va_arg(args, DClonglong)); break; case DC_SIGCHAR_FLOAT: dcArgFloat (vm, (DCfloat) va_arg(args, DCdouble )); break; case DC_SIGCHAR_DOUBLE: dcArgDouble (vm, (DCdouble) va_arg(args, DCdouble )); break; case DC_SIGCHAR_POINTER: dcArgPointer (vm, (DCpointer) va_arg(args, DCpointer )); break; case DC_SIGCHAR_STRING: dcArgPointer (vm, (DCpointer) va_arg(args, DCpointer )); break; } } } void dcVArgF(DCCallVM* vm, const DCsigchar* signature, va_list args) { dcArgF_impl(vm, &signature, args); } void dcArgF(DCCallVM* vm, const DCsigchar* signature, ...) { va_list va; va_start(va, signature); dcVArgF(vm,signature,va); va_end(va); } void dcVCallF(DCCallVM* vm, DCValue* result, DCpointer funcptr, const DCsigchar* signature, va_list args) { const DCsigchar* ptr = signature; dcArgF_impl(vm, &ptr, args); switch(*ptr) { case DC_SIGCHAR_VOID: dcCallVoid (vm,funcptr); break; case DC_SIGCHAR_BOOL: result->B = dcCallBool (vm,funcptr); break; case DC_SIGCHAR_CHAR: result->c = dcCallChar (vm,funcptr); break; case DC_SIGCHAR_UCHAR: result->C = (DCuchar)dcCallChar(vm,funcptr); break; case DC_SIGCHAR_SHORT: result->s = dcCallShort (vm,funcptr); break; case DC_SIGCHAR_USHORT: result->S = dcCallShort (vm,funcptr); break; case DC_SIGCHAR_INT: result->i = dcCallInt (vm,funcptr); break; case DC_SIGCHAR_UINT: result->I = dcCallInt (vm,funcptr); break; case DC_SIGCHAR_LONG: result->j = dcCallLong (vm,funcptr); break; case DC_SIGCHAR_ULONG: result->J = dcCallLong (vm,funcptr); break; case DC_SIGCHAR_LONGLONG: result->l = dcCallLongLong (vm,funcptr); break; case DC_SIGCHAR_ULONGLONG: result->L = dcCallLongLong (vm,funcptr); break; case DC_SIGCHAR_FLOAT: result->f = dcCallFloat (vm,funcptr); break; case DC_SIGCHAR_DOUBLE: result->d = dcCallDouble (vm,funcptr); break; case DC_SIGCHAR_POINTER: result->p = dcCallPointer (vm,funcptr); break; case DC_SIGCHAR_STRING: result->Z = dcCallPointer (vm,funcptr); break; } } void dcCallF(DCCallVM* vm, DCValue* result, DCpointer funcptr, const DCsigchar* signature, ...) { va_list va; va_start(va, signature); dcVCallF(vm,result,funcptr,signature,va); va_end(va); }