1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/xpcom/reflect/xptcall/src/md/unix/xptcstubs_gcc_x86_unix.cpp Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,139 @@
1.4 +/* -*- Mode: C; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
1.5 +/* This Source Code Form is subject to the terms of the Mozilla Public
1.6 + * License, v. 2.0. If a copy of the MPL was not distributed with this
1.7 + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
1.8 +
1.9 +/* Implement shared vtbl methods. */
1.10 +
1.11 +#include "xptcprivate.h"
1.12 +#include "xptiprivate.h"
1.13 +#include "xptc_gcc_x86_unix.h"
1.14 +
1.15 +extern "C" {
1.16 +static nsresult ATTRIBUTE_USED
1.17 +__attribute__ ((regparm (3)))
1.18 +PrepareAndDispatch(uint32_t methodIndex, nsXPTCStubBase* self, uint32_t* args)
1.19 +{
1.20 +#define PARAM_BUFFER_COUNT 16
1.21 +
1.22 + nsXPTCMiniVariant paramBuffer[PARAM_BUFFER_COUNT];
1.23 + nsXPTCMiniVariant* dispatchParams = nullptr;
1.24 + const nsXPTMethodInfo* info;
1.25 + uint8_t paramCount;
1.26 + uint8_t i;
1.27 + nsresult result = NS_ERROR_FAILURE;
1.28 +
1.29 + NS_ASSERTION(self,"no self");
1.30 +
1.31 + self->mEntry->GetMethodInfo(uint16_t(methodIndex), &info);
1.32 + paramCount = info->GetParamCount();
1.33 +
1.34 + // setup variant array pointer
1.35 + if(paramCount > PARAM_BUFFER_COUNT)
1.36 + dispatchParams = new nsXPTCMiniVariant[paramCount];
1.37 + else
1.38 + dispatchParams = paramBuffer;
1.39 + NS_ASSERTION(dispatchParams,"no place for params");
1.40 +
1.41 + uint32_t* ap = args;
1.42 + for(i = 0; i < paramCount; i++, ap++)
1.43 + {
1.44 + const nsXPTParamInfo& param = info->GetParam(i);
1.45 + const nsXPTType& type = param.GetType();
1.46 + nsXPTCMiniVariant* dp = &dispatchParams[i];
1.47 +
1.48 + if(param.IsOut() || !type.IsArithmetic())
1.49 + {
1.50 + dp->val.p = (void*) *ap;
1.51 + continue;
1.52 + }
1.53 + // else
1.54 + dp->val.p = (void*) *ap;
1.55 + switch(type)
1.56 + {
1.57 + case nsXPTType::T_I64 : dp->val.i64 = *((int64_t*) ap); ap++; break;
1.58 + case nsXPTType::T_U64 : dp->val.u64 = *((uint64_t*)ap); ap++; break;
1.59 + case nsXPTType::T_DOUBLE : dp->val.d = *((double*) ap); ap++; break;
1.60 + }
1.61 + }
1.62 +
1.63 + result = self->mOuter->CallMethod((uint16_t)methodIndex, info, dispatchParams);
1.64 +
1.65 + if(dispatchParams != paramBuffer)
1.66 + delete [] dispatchParams;
1.67 +
1.68 + return result;
1.69 +}
1.70 +} // extern "C"
1.71 +
1.72 +#if !defined(XP_MACOSX)
1.73 +
1.74 +#define STUB_HEADER(a, b) ".hidden " SYMBOL_UNDERSCORE "_ZN14nsXPTCStubBase" #a "Stub" #b "Ev\n\t" \
1.75 + ".type " SYMBOL_UNDERSCORE "_ZN14nsXPTCStubBase" #a "Stub" #b "Ev,@function\n"
1.76 +
1.77 +#define STUB_SIZE(a, b) ".size " SYMBOL_UNDERSCORE "_ZN14nsXPTCStubBase" #a "Stub" #b "Ev,.-" SYMBOL_UNDERSCORE "_ZN14nsXPTCStubBase" #a "Stub" #b "Ev\n\t"
1.78 +
1.79 +#else
1.80 +
1.81 +#define STUB_HEADER(a, b)
1.82 +#define STUB_SIZE(a, b)
1.83 +
1.84 +#endif
1.85 +
1.86 +// gcc3 mangling tends to insert the length of the method name
1.87 +#define STUB_ENTRY(n) \
1.88 +asm(".text\n\t" \
1.89 + ".align 2\n\t" \
1.90 + ".if " #n " < 10\n\t" \
1.91 + ".globl " SYMBOL_UNDERSCORE "_ZN14nsXPTCStubBase5Stub" #n "Ev\n\t" \
1.92 + STUB_HEADER(5, n) \
1.93 + SYMBOL_UNDERSCORE "_ZN14nsXPTCStubBase5Stub" #n "Ev:\n\t" \
1.94 + ".elseif " #n " < 100\n\t" \
1.95 + ".globl " SYMBOL_UNDERSCORE "_ZN14nsXPTCStubBase6Stub" #n "Ev\n\t" \
1.96 + STUB_HEADER(6, n) \
1.97 + SYMBOL_UNDERSCORE "_ZN14nsXPTCStubBase6Stub" #n "Ev:\n\t" \
1.98 + ".elseif " #n " < 1000\n\t" \
1.99 + ".globl " SYMBOL_UNDERSCORE "_ZN14nsXPTCStubBase7Stub" #n "Ev\n\t" \
1.100 + STUB_HEADER(7, n) \
1.101 + SYMBOL_UNDERSCORE "_ZN14nsXPTCStubBase7Stub" #n "Ev:\n\t" \
1.102 + ".else\n\t" \
1.103 + ".err \"stub number " #n " >= 1000 not yet supported\"\n\t" \
1.104 + ".endif\n\t" \
1.105 + "movl $" #n ", %eax\n\t" \
1.106 + "jmp " SYMBOL_UNDERSCORE "SharedStub\n\t" \
1.107 + ".if " #n " < 10\n\t" \
1.108 + STUB_SIZE(5, n) \
1.109 + ".elseif " #n " < 100\n\t" \
1.110 + STUB_SIZE(6, n) \
1.111 + ".else\n\t" \
1.112 + STUB_SIZE(7, n) \
1.113 + ".endif");
1.114 +
1.115 +// static nsresult SharedStub(uint32_t methodIndex) __attribute__((regparm(1)))
1.116 +asm(".text\n\t"
1.117 + ".align 2\n\t"
1.118 +#if !defined(XP_MACOSX)
1.119 + ".type " SYMBOL_UNDERSCORE "SharedStub,@function\n\t"
1.120 +#endif
1.121 + SYMBOL_UNDERSCORE "SharedStub:\n\t"
1.122 + "leal 0x08(%esp), %ecx\n\t"
1.123 + "movl 0x04(%esp), %edx\n\t"
1.124 + "jmp " SYMBOL_UNDERSCORE "PrepareAndDispatch\n\t"
1.125 +#if !defined(XP_MACOSX)
1.126 + ".size " SYMBOL_UNDERSCORE "SharedStub,.-" SYMBOL_UNDERSCORE "SharedStub"
1.127 +#endif
1.128 +);
1.129 +
1.130 +#define SENTINEL_ENTRY(n) \
1.131 +nsresult nsXPTCStubBase::Sentinel##n() \
1.132 +{ \
1.133 + NS_ERROR("nsXPTCStubBase::Sentinel called"); \
1.134 + return NS_ERROR_NOT_IMPLEMENTED; \
1.135 +}
1.136 +
1.137 +#include "xptcstubsdef.inc"
1.138 +
1.139 +void
1.140 +xptc_dummy()
1.141 +{
1.142 +}
