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authorMatt A. Tobin <mattatobin@localhost.localdomain>2018-02-02 04:16:08 -0500
committerMatt A. Tobin <mattatobin@localhost.localdomain>2018-02-02 04:16:08 -0500
commit5f8de423f190bbb79a62f804151bc24824fa32d8 (patch)
tree10027f336435511475e392454359edea8e25895d /xpcom/reflect/xptcall/md/unix/xptcstubs_aarch64.cpp
parent49ee0794b5d912db1f95dce6eb52d781dc210db5 (diff)
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Add m-esr52 at 52.6.0
Diffstat (limited to 'xpcom/reflect/xptcall/md/unix/xptcstubs_aarch64.cpp')
-rw-r--r--xpcom/reflect/xptcall/md/unix/xptcstubs_aarch64.cpp219
1 files changed, 219 insertions, 0 deletions
diff --git a/xpcom/reflect/xptcall/md/unix/xptcstubs_aarch64.cpp b/xpcom/reflect/xptcall/md/unix/xptcstubs_aarch64.cpp
new file mode 100644
index 000000000..571fb42a2
--- /dev/null
+++ b/xpcom/reflect/xptcall/md/unix/xptcstubs_aarch64.cpp
@@ -0,0 +1,219 @@
+/* -*- Mode: C; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/* 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/. */
+
+#include "xptcprivate.h"
+#include "xptiprivate.h"
+
+#ifndef __AARCH64EL__
+#error "Only little endian compatibility was tested"
+#endif
+
+/*
+ * This is for AArch64 ABI
+ *
+ * When we're called, the "gp" registers are stored in gprData and
+ * the "fp" registers are stored in fprData. Each array has 8 regs
+ * but first reg in gprData is a placeholder for 'self'.
+ */
+extern "C" nsresult
+PrepareAndDispatch(nsXPTCStubBase* self, uint32_t methodIndex, uint64_t* args,
+ uint64_t *gprData, double *fprData)
+{
+#define PARAM_BUFFER_COUNT 16
+#define PARAM_GPR_COUNT 8
+#define PARAM_FPR_COUNT 8
+
+ nsXPTCMiniVariant paramBuffer[PARAM_BUFFER_COUNT];
+ nsXPTCMiniVariant* dispatchParams = NULL;
+ const nsXPTMethodInfo* info;
+ nsresult result = NS_ERROR_FAILURE;
+
+ NS_ASSERTION(self,"no self");
+
+ self->mEntry->GetMethodInfo(uint16_t(methodIndex), &info);
+ NS_ASSERTION(info,"no method info");
+
+ uint32_t paramCount = info->GetParamCount();
+
+ // setup variant array pointer
+ if (paramCount > PARAM_BUFFER_COUNT) {
+ dispatchParams = new nsXPTCMiniVariant[paramCount];
+ } else {
+ dispatchParams = paramBuffer;
+ }
+ NS_ASSERTION(dispatchParams,"no place for params");
+
+ uint64_t* ap = args;
+ uint32_t next_gpr = 1; // skip first arg which is 'self'
+ uint32_t next_fpr = 0;
+ for (uint32_t i = 0; i < paramCount; i++) {
+ const nsXPTParamInfo& param = info->GetParam(i);
+ const nsXPTType& type = param.GetType();
+ nsXPTCMiniVariant* dp = &dispatchParams[i];
+
+ if (param.IsOut() || !type.IsArithmetic()) {
+ if (next_gpr < PARAM_GPR_COUNT) {
+ dp->val.p = (void*)gprData[next_gpr++];
+ } else {
+ dp->val.p = (void*)*ap++;
+ }
+ continue;
+ }
+
+ switch (type) {
+ case nsXPTType::T_I8:
+ if (next_gpr < PARAM_GPR_COUNT) {
+ dp->val.i8 = (int8_t)gprData[next_gpr++];
+ } else {
+ dp->val.i8 = (int8_t)*ap++;
+ }
+ break;
+
+ case nsXPTType::T_I16:
+ if (next_gpr < PARAM_GPR_COUNT) {
+ dp->val.i16 = (int16_t)gprData[next_gpr++];
+ } else {
+ dp->val.i16 = (int16_t)*ap++;
+ }
+ break;
+
+ case nsXPTType::T_I32:
+ if (next_gpr < PARAM_GPR_COUNT) {
+ dp->val.i32 = (int32_t)gprData[next_gpr++];
+ } else {
+ dp->val.i32 = (int32_t)*ap++;
+ }
+ break;
+
+ case nsXPTType::T_I64:
+ if (next_gpr < PARAM_GPR_COUNT) {
+ dp->val.i64 = (int64_t)gprData[next_gpr++];
+ } else {
+ dp->val.i64 = (int64_t)*ap++;
+ }
+ break;
+
+ case nsXPTType::T_U8:
+ if (next_gpr < PARAM_GPR_COUNT) {
+ dp->val.u8 = (uint8_t)gprData[next_gpr++];
+ } else {
+ dp->val.u8 = (uint8_t)*ap++;
+ }
+ break;
+
+ case nsXPTType::T_U16:
+ if (next_gpr < PARAM_GPR_COUNT) {
+ dp->val.u16 = (uint16_t)gprData[next_gpr++];
+ } else {
+ dp->val.u16 = (uint16_t)*ap++;
+ }
+ break;
+
+ case nsXPTType::T_U32:
+ if (next_gpr < PARAM_GPR_COUNT) {
+ dp->val.u32 = (uint32_t)gprData[next_gpr++];
+ } else {
+ dp->val.u32 = (uint32_t)*ap++;
+ }
+ break;
+
+ case nsXPTType::T_U64:
+ if (next_gpr < PARAM_GPR_COUNT) {
+ dp->val.u64 = (uint64_t)gprData[next_gpr++];
+ } else {
+ dp->val.u64 = (uint64_t)*ap++;
+ }
+ break;
+
+ case nsXPTType::T_FLOAT:
+ if (next_fpr < PARAM_FPR_COUNT) {
+ memcpy(&dp->val.f, &fprData[next_fpr++], sizeof(dp->val.f));
+ } else {
+ memcpy(&dp->val.f, ap++, sizeof(dp->val.f));
+ }
+ break;
+
+ case nsXPTType::T_DOUBLE:
+ if (next_fpr < PARAM_FPR_COUNT) {
+ memcpy(&dp->val.d, &fprData[next_fpr++], sizeof(dp->val.d));
+ } else {
+ memcpy(&dp->val.d, ap++, sizeof(dp->val.d));
+ }
+ break;
+
+ case nsXPTType::T_BOOL:
+ if (next_gpr < PARAM_GPR_COUNT) {
+ dp->val.b = (bool)gprData[next_gpr++];
+ } else {
+ dp->val.b = (bool)*ap++;
+ }
+ break;
+
+ case nsXPTType::T_CHAR:
+ if (next_gpr < PARAM_GPR_COUNT) {
+ dp->val.c = (char)gprData[next_gpr++];
+ } else {
+ dp->val.c = (char)*ap++;
+ }
+ break;
+
+ case nsXPTType::T_WCHAR:
+ if (next_gpr < PARAM_GPR_COUNT) {
+ dp->val.wc = (wchar_t)gprData[next_gpr++];
+ } else {
+ dp->val.wc = (wchar_t)*ap++;
+ }
+ break;
+
+ default:
+ NS_ASSERTION(0, "bad type");
+ break;
+ }
+ }
+
+ result = self->mOuter->CallMethod((uint16_t)methodIndex, info, dispatchParams);
+
+ if (dispatchParams != paramBuffer) {
+ delete [] dispatchParams;
+ }
+
+ return result;
+}
+
+// Load w17 with the constant 'n' and branch to SharedStub().
+# define STUB_ENTRY(n) \
+ __asm__ ( \
+ ".section \".text\" \n\t" \
+ ".align 2\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" \
+ "mov w17,#"#n" \n\t" \
+ "b SharedStub \n" \
+);
+
+#define SENTINEL_ENTRY(n) \
+ nsresult nsXPTCStubBase::Sentinel##n() \
+{ \
+ NS_ASSERTION(0,"nsXPTCStubBase::Sentinel called"); \
+ return NS_ERROR_NOT_IMPLEMENTED; \
+}
+
+#include "xptcstubsdef.inc"