diff options
Diffstat (limited to 'src/libs/xpcom18a4/xpcom/reflect/xptcall/src/md/unix/xptcinvoke_linux_s390.cpp')
-rw-r--r-- | src/libs/xpcom18a4/xpcom/reflect/xptcall/src/md/unix/xptcinvoke_linux_s390.cpp | 254 |
1 files changed, 254 insertions, 0 deletions
diff --git a/src/libs/xpcom18a4/xpcom/reflect/xptcall/src/md/unix/xptcinvoke_linux_s390.cpp b/src/libs/xpcom18a4/xpcom/reflect/xptcall/src/md/unix/xptcinvoke_linux_s390.cpp new file mode 100644 index 00000000..5da035ca --- /dev/null +++ b/src/libs/xpcom18a4/xpcom/reflect/xptcall/src/md/unix/xptcinvoke_linux_s390.cpp @@ -0,0 +1,254 @@ +/* -*- 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): + * + * 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 */ + +#include "xptcprivate.h" + + +static PRUint32 +invoke_count_words(PRUint32 paramCount, nsXPTCVariant* s) +{ + PRUint32 overflow = 0, gpr = 1 /*this*/, fpr = 0; + for(PRUint32 i = 0; i < paramCount; i++, s++) + { + if(s->IsPtrData()) + { + if (gpr < 5) gpr++; else overflow++; + continue; + } + switch(s->type) + { + case nsXPTType::T_I8 : + case nsXPTType::T_I16 : + case nsXPTType::T_I32 : + if (gpr < 5) gpr++; else overflow++; + break; + case nsXPTType::T_I64 : + if (gpr < 4) gpr+=2; else gpr=5, overflow+=2; + break; + case nsXPTType::T_U8 : + case nsXPTType::T_U16 : + case nsXPTType::T_U32 : + if (gpr < 5) gpr++; else overflow++; + break; + case nsXPTType::T_U64 : + if (gpr < 4) gpr+=2; else gpr=5, overflow+=2; + break; + case nsXPTType::T_FLOAT : + if (fpr < 2) fpr++; else overflow++; + break; + case nsXPTType::T_DOUBLE : + if (fpr < 2) fpr++; else overflow+=2; + break; + case nsXPTType::T_BOOL : + case nsXPTType::T_CHAR : + case nsXPTType::T_WCHAR : + if (gpr < 5) gpr++; else overflow++; + break; + default: + // all the others are plain pointer types + if (gpr < 5) gpr++; else overflow++; + break; + } + } + /* Round up number of overflow words to ensure stack + stays aligned to 8 bytes. */ + return (overflow + 1) & ~1; +} + +static void +invoke_copy_to_stack(PRUint32 paramCount, nsXPTCVariant* s, PRUint32* d_ov, PRUint32 overflow) +{ + PRUint32 *d_gpr = d_ov + overflow; + PRUint64 *d_fpr = (PRUint64 *)(d_gpr + 4); + PRUint32 gpr = 1 /*this*/, fpr = 0; + + for(PRUint32 i = 0; i < paramCount; i++, s++) + { + if(s->IsPtrData()) + { + if (gpr < 5) + *((void**)d_gpr) = s->ptr, d_gpr++, gpr++; + else + *((void**)d_ov ) = s->ptr, d_ov++; + continue; + } + switch(s->type) + { + case nsXPTType::T_I8 : + if (gpr < 5) + *((PRInt32*) d_gpr) = s->val.i8, d_gpr++, gpr++; + else + *((PRInt32*) d_ov ) = s->val.i8, d_ov++; + break; + case nsXPTType::T_I16 : + if (gpr < 5) + *((PRInt32*) d_gpr) = s->val.i16, d_gpr++, gpr++; + else + *((PRInt32*) d_ov ) = s->val.i16, d_ov++; + break; + case nsXPTType::T_I32 : + if (gpr < 5) + *((PRInt32*) d_gpr) = s->val.i32, d_gpr++, gpr++; + else + *((PRInt32*) d_ov ) = s->val.i32, d_ov++; + break; + case nsXPTType::T_I64 : + if (gpr < 4) + *((PRInt64*) d_gpr) = s->val.i64, d_gpr+=2, gpr+=2; + else + *((PRInt64*) d_ov ) = s->val.i64, d_ov+=2, gpr=5; + break; + case nsXPTType::T_U8 : + if (gpr < 5) + *((PRUint32*) d_gpr) = s->val.u8, d_gpr++, gpr++; + else + *((PRUint32*) d_ov ) = s->val.u8, d_ov++; + break; + case nsXPTType::T_U16 : + if (gpr < 5) + *((PRUint32*)d_gpr) = s->val.u16, d_gpr++, gpr++; + else + *((PRUint32*)d_ov ) = s->val.u16, d_ov++; + break; + case nsXPTType::T_U32 : + if (gpr < 5) + *((PRUint32*)d_gpr) = s->val.u32, d_gpr++, gpr++; + else + *((PRUint32*)d_ov ) = s->val.u32, d_ov++; + break; + case nsXPTType::T_U64 : + if (gpr < 4) + *((PRUint64*)d_gpr) = s->val.u64, d_gpr+=2, gpr+=2; + else + *((PRUint64*)d_ov ) = s->val.u64, d_ov+=2, gpr=5; + break; + case nsXPTType::T_FLOAT : + if (fpr < 2) + *((float*) d_fpr) = s->val.f, d_fpr++, fpr++; + else + *((float*) d_ov ) = s->val.f, d_ov++; + break; + case nsXPTType::T_DOUBLE : + if (fpr < 2) + *((double*) d_fpr) = s->val.d, d_fpr++, fpr++; + else + *((double*) d_ov ) = s->val.d, d_ov+=2; + break; + case nsXPTType::T_BOOL : + if (gpr < 5) + *((PRUint32*)d_gpr) = s->val.b, d_gpr++, gpr++; + else + *((PRUint32*)d_ov ) = s->val.b, d_ov++; + break; + case nsXPTType::T_CHAR : + if (gpr < 5) + *((PRUint32*)d_gpr) = s->val.c, d_gpr++, gpr++; + else + *((PRUint32*)d_ov ) = s->val.c, d_ov++; + break; + case nsXPTType::T_WCHAR : + if (gpr < 5) + *((PRUint32*)d_gpr) = s->val.wc, d_gpr++, gpr++; + else + *((PRUint32*)d_ov ) = s->val.wc, d_ov++; + break; + default: + // all the others are plain pointer types + if (gpr < 5) + *((void**) d_gpr) = s->val.p, d_gpr++, gpr++; + else + *((void**) d_ov ) = s->val.p, d_ov++; + break; + } + } +} + +XPTC_PUBLIC_API(nsresult) +XPTC_InvokeByIndex(nsISupports* that, PRUint32 methodIndex, + PRUint32 paramCount, nsXPTCVariant* params) +{ + PRUint32 *vtable = *(PRUint32 **)that; +#if defined(__GXX_ABI_VERSION) && __GXX_ABI_VERSION >= 100 /* G++ V3 ABI */ + PRUint32 method = vtable[methodIndex]; +#else /* not G++ V3 ABI */ + PRUint32 method = vtable[methodIndex + 2]; +#endif /* G++ V3 ABI */ + PRUint32 overflow = invoke_count_words (paramCount, params); + PRUint32 result; + + __asm__ __volatile__ + ( + "lr 7,15\n\t" + "ahi 7,-32\n\t" + + "lr 3,%3\n\t" + "sll 3,2\n\t" + "lcr 3,3\n\t" + "l 2,0(15)\n\t" + "la 15,0(3,7)\n\t" + "st 2,0(15)\n\t" + + "lr 2,%1\n\t" + "lr 3,%2\n\t" + "la 4,96(15)\n\t" + "lr 5,%3\n\t" + "basr 14,%4\n\t" + + "lr 2,%5\n\t" + "ld 0,112(7)\n\t" + "ld 2,120(7)\n\t" + "lm 3,6,96(7)\n\t" + "basr 14,%6\n\t" + + "la 15,32(7)\n\t" + + "lr %0,2\n\t" + : "=r" (result) + : "r" (paramCount), + "r" (params), + "r" (overflow), + "a" (invoke_copy_to_stack), + "a" (that), + "a" (method) + : "2", "3", "4", "5", "6", "7", "memory" + ); + + return result; +} |