Add m-esr52 at 52.6.0

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"