/* -*- Mode: C; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ /* This Source Code Form is subject to the terms of the Mozilla Public * License, v. 2.0. If a copy of the MPL was not distributed with this * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ #if defined(__riscv_float_abi_soft) # error "Not support soft float ABI" #endif #include "xptcprivate.h" extern "C" nsresult ATTRIBUTE_USED PrepareAndDispatch(nsXPTCStubBase* self, uint32_t methodIndex, uint64_t* args, uint64_t* gpregs, double* fpregs) { static const uint32_t GPR_COUNT = 8; static const uint32_t FPR_COUNT = 8; nsXPTCMiniVariant paramBuffer[PARAM_BUFFER_COUNT]; const nsXPTMethodInfo* info; self->mEntry->GetMethodInfo(uint16_t(methodIndex), &info); uint32_t paramCount = info->GetParamCount(); const uint8_t indexOfJSContext = info->IndexOfJSContext(); uint64_t* ap = args; uint32_t nr_gpr = 1; // skip one GPR register for 'self' uint32_t nr_fpr = 0; uint64_t value; for (uint32_t i = 0; i < paramCount; i++) { const nsXPTParamInfo& param = info->GetParam(i); const nsXPTType& type = param.GetType(); nsXPTCMiniVariant* dp = ¶mBuffer[i]; if (i == indexOfJSContext) { if (nr_gpr < GPR_COUNT) nr_gpr++; else ap++; } if (!param.IsOut() && type == nsXPTType::T_DOUBLE) { if (nr_fpr < FPR_COUNT) { dp->val.d = fpregs[nr_fpr++]; } else { dp->val.d = *(double*)ap++; } continue; } if (!param.IsOut() && type == nsXPTType::T_FLOAT) { if (nr_fpr < FPR_COUNT) { dp->val.d = fpregs[nr_fpr++]; } else { dp->val.f = *(float*)ap++; } continue; } if (nr_gpr < GPR_COUNT) { value = gpregs[nr_gpr++]; } else { value = *ap++; } if (param.IsOut() || !type.IsArithmetic()) { dp->val.p = (void*)value; continue; } switch (type) { case nsXPTType::T_I8: dp->val.i8 = (int8_t)value; break; case nsXPTType::T_I16: dp->val.i16 = (int16_t)value; break; case nsXPTType::T_I32: dp->val.i32 = (int32_t)value; break; case nsXPTType::T_I64: dp->val.i64 = (int64_t)value; break; case nsXPTType::T_U8: dp->val.u8 = (uint8_t)value; break; case nsXPTType::T_U16: dp->val.u16 = (uint16_t)value; break; case nsXPTType::T_U32: dp->val.u32 = (uint32_t)value; break; case nsXPTType::T_U64: dp->val.u64 = (uint64_t)value; break; case nsXPTType::T_BOOL: dp->val.b = (bool)(uint8_t)value; break; case nsXPTType::T_CHAR: dp->val.c = (char)value; break; case nsXPTType::T_WCHAR: dp->val.wc = (wchar_t)value; break; default: NS_ERROR("bad type"); break; } } nsresult result = self->mOuter->CallMethod((uint16_t)methodIndex, info, paramBuffer); return result; } // Load t0 with the constant 'n' and branch to SharedStub(). // clang-format off #define STUB_ENTRY(n) \ __asm__( \ ".text\n\t" \ ".if "#n" < 10 \n\t" \ ".globl _ZN14nsXPTCStubBase5Stub"#n"Ev \n\t" \ ".hidden _ZN14nsXPTCStubBase5Stub"#n"Ev \n\t" \ ".type _ZN14nsXPTCStubBase5Stub"#n"Ev,@function \n\n" \ "_ZN14nsXPTCStubBase5Stub"#n"Ev: \n\t" \ ".elseif "#n" < 100 \n\t" \ ".globl _ZN14nsXPTCStubBase6Stub"#n"Ev \n\t" \ ".hidden _ZN14nsXPTCStubBase6Stub"#n"Ev \n\t" \ ".type _ZN14nsXPTCStubBase6Stub"#n"Ev,@function \n\n" \ "_ZN14nsXPTCStubBase6Stub"#n"Ev: \n\t" \ ".elseif "#n" < 1000 \n\t" \ ".globl _ZN14nsXPTCStubBase7Stub"#n"Ev \n\t" \ ".hidden _ZN14nsXPTCStubBase7Stub"#n"Ev \n\t" \ ".type _ZN14nsXPTCStubBase7Stub"#n"Ev,@function \n\n" \ "_ZN14nsXPTCStubBase7Stub"#n"Ev: \n\t" \ ".else \n\t" \ ".err \"stub number "#n" >= 1000 not yet supported\"\n" \ ".endif \n\t" \ "li t0, "#n" \n\t" \ "j SharedStub \n" \ ".if "#n" < 10\n\t" \ ".size _ZN14nsXPTCStubBase5Stub"#n"Ev,.-_ZN14nsXPTCStubBase5Stub"#n"Ev\n\t" \ ".elseif "#n" < 100\n\t" \ ".size _ZN14nsXPTCStubBase6Stub"#n"Ev,.-_ZN14nsXPTCStubBase6Stub"#n"Ev\n\t" \ ".else\n\t" \ ".size _ZN14nsXPTCStubBase7Stub"#n"Ev,.-_ZN14nsXPTCStubBase7Stub"#n"Ev\n\t" \ ".endif" \ ); // clang-format on #define SENTINEL_ENTRY(n) \ nsresult nsXPTCStubBase::Sentinel##n() { \ NS_ERROR("nsXPTCStubBase::Sentinel called"); \ return NS_ERROR_NOT_IMPLEMENTED; \ } #include "xptcstubsdef.inc"