/* 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/. */ // Platform specific code to invoke XPCOM methods on native objects #if defined(__riscv_float_abi_soft) # error "Not support soft float ABI" #endif #include "xptcprivate.h" extern "C" void invoke_copy_to_stack(uint64_t* gpregs, double* fpregs, uint32_t paramCount, nsXPTCVariant* s, uint64_t* d) { static const uint32_t GPR_COUNT = 8; static const uint32_t FPR_COUNT = 8; uint32_t nr_gpr = 1; // skip one GPR register for "this" uint32_t nr_fpr = 0; uint64_t value = 0; for (uint32_t i = 0; i < paramCount; i++, s++) { if (s->IsIndirect()) { value = (uint64_t)&s->val; } else { switch (s->type) { case nsXPTType::T_FLOAT: break; case nsXPTType::T_DOUBLE: break; case nsXPTType::T_I8: value = s->val.i8; break; case nsXPTType::T_I16: value = s->val.i16; break; case nsXPTType::T_I32: value = s->val.i32; break; case nsXPTType::T_I64: value = s->val.i64; break; case nsXPTType::T_U8: value = s->val.u8; break; case nsXPTType::T_U16: value = s->val.u16; break; case nsXPTType::T_U32: value = s->val.u32; break; case nsXPTType::T_U64: value = s->val.u64; break; case nsXPTType::T_BOOL: value = s->val.b; break; case nsXPTType::T_CHAR: value = s->val.c; break; case nsXPTType::T_WCHAR: value = s->val.wc; break; default: value = (uint64_t)s->val.p; break; } } if (!s->IsIndirect() && s->type == nsXPTType::T_DOUBLE) { if (nr_fpr < FPR_COUNT) { fpregs[nr_fpr++] = s->val.d; } else { *((double*)d) = s->val.d; d++; } } else if (!s->IsIndirect() && s->type == nsXPTType::T_FLOAT) { if (nr_fpr < FPR_COUNT) { // The value in %fa register is already prepared to // be retrieved as a float. Therefore, we pass the // value verbatim, as a double without conversion. fpregs[nr_fpr++] = s->val.d; } else { *((float*)d) = s->val.f; d++; } } else { if (nr_gpr < GPR_COUNT) { gpregs[nr_gpr++] = value; } else { *d++ = value; } } } } extern "C" nsresult _NS_InvokeByIndex(nsISupports* that, uint32_t methodIndex, uint32_t paramCount, nsXPTCVariant* params); EXPORT_XPCOM_API(nsresult) NS_InvokeByIndex(nsISupports* that, uint32_t methodIndex, uint32_t paramCount, nsXPTCVariant* params) { return _NS_InvokeByIndex(that, methodIndex, paramCount, params); }