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Diffstat (limited to '')
| -rw-r--r-- | src/libs/xpcom18a4/xpcom/reflect/xptcall/src/md/unix/xptcinvoke_ppc_netbsd.cpp | 147 |
1 files changed, 147 insertions, 0 deletions
diff --git a/src/libs/xpcom18a4/xpcom/reflect/xptcall/src/md/unix/xptcinvoke_ppc_netbsd.cpp b/src/libs/xpcom18a4/xpcom/reflect/xptcall/src/md/unix/xptcinvoke_ppc_netbsd.cpp new file mode 100644 index 00000000..0de8ea62 --- /dev/null +++ b/src/libs/xpcom18a4/xpcom/reflect/xptcall/src/md/unix/xptcinvoke_ppc_netbsd.cpp @@ -0,0 +1,147 @@ +/* -*- Mode: C; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*- */ +/* ***** BEGIN LICENSE BLOCK ***** + * Version: MPL 1.1/GPL 2.0/LGPL 2.1 + * + * The contents of this file are subject to the Mozilla Public License Version + * 1.1 (the "License"); you may not use this file except in compliance with + * the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * Software distributed under the License is distributed on an "AS IS" basis, + * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License + * for the specific language governing rights and limitations under the + * License. + * + * The Original Code is mozilla.org code. + * + * The Initial Developer of the Original Code is + * Netscape Communications Corporation. + * Portions created by the Initial Developer are Copyright (C) 1998 + * the Initial Developer. All Rights Reserved. + * + * Contributor(s): + * Franz.Sirl-kernel@lauterbach.com (Franz Sirl) + * beard@netscape.com (Patrick Beard) + * waterson@netscape.com (Chris Waterson) + * + * Alternatively, the contents of this file may be used under the terms of + * either of the GNU General Public License Version 2 or later (the "GPL"), + * or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"), + * in which case the provisions of the GPL or the LGPL are applicable instead + * of those above. If you wish to allow use of your version of this file only + * under the terms of either the GPL or the LGPL, and not to allow others to + * use your version of this file under the terms of the MPL, indicate your + * decision by deleting the provisions above and replace them with the notice + * and other provisions required by the GPL or the LGPL. If you do not delete + * the provisions above, a recipient may use your version of this file under + * the terms of any one of the MPL, the GPL or the LGPL. + * + * ***** END LICENSE BLOCK ***** */ + +// Platform specific code to invoke XPCOM methods on native objects + +// The purpose of XPTC_InvokeByIndex() is to map a platform +// indepenpent call to the platform ABI. To do that, +// XPTC_InvokeByIndex() has to determine the method to call via vtable +// access. The parameters for the method are read from the +// nsXPTCVariant* and prepared for th native ABI. For the Linux/PPC +// ABI this means that the first 8 integral and floating point +// parameters are passed in registers. + +#include "xptcprivate.h" + +// 8 integral parameters are passed in registers +#define GPR_COUNT 8 + +// 8 floating point parameters are passed in registers, floats are +// promoted to doubles when passed in registers +#define FPR_COUNT 8 + +extern "C" PRUint32 +invoke_count_words(PRUint32 paramCount, nsXPTCVariant* s) +{ + return PRUint32(((paramCount * 2) + 3) & ~3); +} + +extern "C" void +invoke_copy_to_stack(PRUint32* d, + PRUint32 paramCount, + nsXPTCVariant* s, + PRUint32* gpregs, + double* fpregs) +{ + PRUint32 gpr = 1; // skip one GP reg for 'that' + PRUint32 fpr = 0; + PRUint32 tempu32; + PRUint64 tempu64; + + for(uint32 i = 0; i < paramCount; i++, s++) { + if(s->IsPtrData()) + tempu32 = (PRUint32) s->ptr; + else { + switch(s->type) { + case nsXPTType::T_FLOAT: break; + case nsXPTType::T_DOUBLE: break; + case nsXPTType::T_I8: tempu32 = s->val.i8; break; + case nsXPTType::T_I16: tempu32 = s->val.i16; break; + case nsXPTType::T_I32: tempu32 = s->val.i32; break; + case nsXPTType::T_I64: tempu64 = s->val.i64; break; + case nsXPTType::T_U8: tempu32 = s->val.u8; break; + case nsXPTType::T_U16: tempu32 = s->val.u16; break; + case nsXPTType::T_U32: tempu32 = s->val.u32; break; + case nsXPTType::T_U64: tempu64 = s->val.u64; break; + case nsXPTType::T_BOOL: tempu32 = s->val.b; break; + case nsXPTType::T_CHAR: tempu32 = s->val.c; break; + case nsXPTType::T_WCHAR: tempu32 = s->val.wc; break; + default: tempu32 = (PRUint32) s->val.p; break; + } + } + + if (!s->IsPtrData() && s->type == nsXPTType::T_DOUBLE) { + if (fpr < FPR_COUNT) + fpregs[fpr++] = s->val.d; + else { + if ((PRUint32) d & 4) d++; // doubles are 8-byte aligned on stack + *((double*) d) = s->val.d; + d += 2; + if (gpr < GPR_COUNT) + gpr += 2; + } + } + else if (!s->IsPtrData() && s->type == nsXPTType::T_FLOAT) { + if (fpr < FPR_COUNT) + fpregs[fpr++] = s->val.f; // if passed in registers, floats are promoted to doubles + else { + *((float*) d) = s->val.f; + d += 1; + if (gpr < GPR_COUNT) + gpr += 1; + } + } + else if (!s->IsPtrData() && (s->type == nsXPTType::T_I64 + || s->type == nsXPTType::T_U64)) { + if ((gpr + 1) < GPR_COUNT) { + if (gpr & 1) gpr++; // longlongs are aligned in odd/even register pairs, eg. r5/r6 + *((PRUint64*) &gpregs[gpr]) = tempu64; + gpr += 2; + } + else { + if ((PRUint32) d & 4) d++; // longlongs are 8-byte aligned on stack + *((PRUint64*) d) = tempu64; + d += 2; + } + } + else { + if (gpr < GPR_COUNT) + gpregs[gpr++] = tempu32; + else + *d++ = tempu32; + } + + } +} + +extern "C" +XPTC_PUBLIC_API(nsresult) +XPTC_InvokeByIndex(nsISupports* that, PRUint32 methodIndex, + PRUint32 paramCount, nsXPTCVariant* params); |