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-rw-r--r--xpcom/reflect/xptcall/md/unix/xptcstubs_ppc64_linux.cpp246
1 files changed, 246 insertions, 0 deletions
diff --git a/xpcom/reflect/xptcall/md/unix/xptcstubs_ppc64_linux.cpp b/xpcom/reflect/xptcall/md/unix/xptcstubs_ppc64_linux.cpp
new file mode 100644
index 000000000..95e67cb29
--- /dev/null
+++ b/xpcom/reflect/xptcall/md/unix/xptcstubs_ppc64_linux.cpp
@@ -0,0 +1,246 @@
+/* -*- 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/. */
+
+// Implement shared vtbl methods.
+
+#include "xptcprivate.h"
+#include "xptiprivate.h"
+
+// The Linux/PPC64 ABI passes the first 8 integral
+// parameters and the first 13 floating point parameters in registers
+// (r3-r10 and f1-f13), no stack space is allocated for these by the
+// caller. The rest of the parameters are passed in the caller's stack
+// area. The stack pointer has to retain 16-byte alignment.
+
+// The PowerPC64 platform ABI can be found here:
+// http://www.freestandards.org/spec/ELF/ppc64/
+// and in particular:
+// http://www.freestandards.org/spec/ELF/ppc64/PPC-elf64abi-1.9.html#FUNC-CALL
+
+#define PARAM_BUFFER_COUNT 16
+#define GPR_COUNT 7
+#define FPR_COUNT 13
+
+// PrepareAndDispatch() is called by SharedStub() and calls the actual method.
+//
+// - 'args[]' contains the arguments passed on stack
+// - 'gprData[]' contains the arguments passed in integer registers
+// - 'fprData[]' contains the arguments passed in floating point registers
+//
+// The parameters are mapped into an array of type 'nsXPTCMiniVariant'
+// and then the method gets called.
+#include <stdio.h>
+extern "C" nsresult ATTRIBUTE_USED
+PrepareAndDispatch(nsXPTCStubBase* self,
+ uint64_t methodIndex,
+ uint64_t* args,
+ uint64_t *gprData,
+ double *fprData)
+{
+ nsXPTCMiniVariant paramBuffer[PARAM_BUFFER_COUNT];
+ nsXPTCMiniVariant* dispatchParams = nullptr;
+ const nsXPTMethodInfo* info;
+ uint32_t paramCount;
+ uint32_t i;
+ nsresult result = NS_ERROR_FAILURE;
+
+ NS_ASSERTION(self,"no self");
+
+ self->mEntry->GetMethodInfo(uint16_t(methodIndex), &info);
+ NS_ASSERTION(info,"no method info");
+ if (! info)
+ return NS_ERROR_UNEXPECTED;
+
+ 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");
+ if (! dispatchParams)
+ return NS_ERROR_OUT_OF_MEMORY;
+
+ uint64_t* ap = args;
+ uint64_t tempu64;
+
+ for(i = 0; i < paramCount; i++) {
+ const nsXPTParamInfo& param = info->GetParam(i);
+ const nsXPTType& type = param.GetType();
+ nsXPTCMiniVariant* dp = &dispatchParams[i];
+
+ if (!param.IsOut() && type == nsXPTType::T_DOUBLE) {
+ if (i < FPR_COUNT)
+ dp->val.d = fprData[i];
+ else
+ dp->val.d = *(double*) ap;
+ } else if (!param.IsOut() && type == nsXPTType::T_FLOAT) {
+ if (i < FPR_COUNT)
+ dp->val.f = (float) fprData[i]; // in registers floats are passed as doubles
+ else {
+ float *p = (float *)ap;
+#ifndef __LITTLE_ENDIAN__
+ p++;
+#endif
+ dp->val.f = *p;
+ }
+ } else { /* integer type or pointer */
+ if (i < GPR_COUNT)
+ tempu64 = gprData[i];
+ else
+ tempu64 = *ap;
+
+ if (param.IsOut() || !type.IsArithmetic())
+ dp->val.p = (void*) tempu64;
+ else if (type == nsXPTType::T_I8)
+ dp->val.i8 = (int8_t) tempu64;
+ else if (type == nsXPTType::T_I16)
+ dp->val.i16 = (int16_t) tempu64;
+ else if (type == nsXPTType::T_I32)
+ dp->val.i32 = (int32_t) tempu64;
+ else if (type == nsXPTType::T_I64)
+ dp->val.i64 = (int64_t) tempu64;
+ else if (type == nsXPTType::T_U8)
+ dp->val.u8 = (uint8_t) tempu64;
+ else if (type == nsXPTType::T_U16)
+ dp->val.u16 = (uint16_t) tempu64;
+ else if (type == nsXPTType::T_U32)
+ dp->val.u32 = (uint32_t) tempu64;
+ else if (type == nsXPTType::T_U64)
+ dp->val.u64 = (uint64_t) tempu64;
+ else if (type == nsXPTType::T_BOOL)
+ dp->val.b = (bool) tempu64;
+ else if (type == nsXPTType::T_CHAR)
+ dp->val.c = (char) tempu64;
+ else if (type == nsXPTType::T_WCHAR)
+ dp->val.wc = (wchar_t) tempu64;
+ else
+ NS_ERROR("bad type");
+ }
+
+ if (i >= 7)
+ ap++;
+ }
+
+ result = self->mOuter->CallMethod((uint16_t) methodIndex, info,
+ dispatchParams);
+
+ if (dispatchParams != paramBuffer)
+ delete [] dispatchParams;
+
+ return result;
+}
+
+// Load r11 with the constant 'n' and branch to SharedStub().
+//
+// XXX Yes, it's ugly that we're relying on gcc's name-mangling here;
+// however, it's quick, dirty, and'll break when the ABI changes on
+// us, which is what we want ;-).
+
+
+// gcc-3 version
+//
+// As G++3 ABI contains the length of the functionname in the mangled
+// name, it is difficult to get a generic assembler mechanism like
+// in the G++ 2.95 case.
+// Create names would be like:
+// _ZN14nsXPTCStubBase5Stub1Ev
+// _ZN14nsXPTCStubBase6Stub12Ev
+// _ZN14nsXPTCStubBase7Stub123Ev
+// _ZN14nsXPTCStubBase8Stub1234Ev
+// etc.
+// Use assembler directives to get the names right...
+
+#if _CALL_ELF == 2
+# define STUB_ENTRY(n) \
+__asm__ ( \
+ ".section \".text\" \n\t" \
+ ".align 2 \n\t" \
+ ".if "#n" < 10 \n\t" \
+ ".globl _ZN14nsXPTCStubBase5Stub"#n"Ev \n\t" \
+ ".type _ZN14nsXPTCStubBase5Stub"#n"Ev,@function \n\n" \
+"_ZN14nsXPTCStubBase5Stub"#n"Ev: \n\t" \
+ "0: addis 2,12,.TOC.-0b@ha \n\t" \
+ "addi 2,2,.TOC.-0b@l \n\t" \
+ ".localentry _ZN14nsXPTCStubBase5Stub"#n"Ev,.-_ZN14nsXPTCStubBase5Stub"#n"Ev \n\t" \
+ \
+ ".elseif "#n" < 100 \n\t" \
+ ".globl _ZN14nsXPTCStubBase6Stub"#n"Ev \n\t" \
+ ".type _ZN14nsXPTCStubBase6Stub"#n"Ev,@function \n\n" \
+"_ZN14nsXPTCStubBase6Stub"#n"Ev: \n\t" \
+ "0: addis 2,12,.TOC.-0b@ha \n\t" \
+ "addi 2,2,.TOC.-0b@l \n\t" \
+ ".localentry _ZN14nsXPTCStubBase6Stub"#n"Ev,.-_ZN14nsXPTCStubBase6Stub"#n"Ev \n\t" \
+ \
+ ".elseif "#n" < 1000 \n\t" \
+ ".globl _ZN14nsXPTCStubBase7Stub"#n"Ev \n\t" \
+ ".type _ZN14nsXPTCStubBase7Stub"#n"Ev,@function \n\n" \
+"_ZN14nsXPTCStubBase7Stub"#n"Ev: \n\t" \
+ "0: addis 2,12,.TOC.-0b@ha \n\t" \
+ "addi 2,2,.TOC.-0b@l \n\t" \
+ ".localentry _ZN14nsXPTCStubBase7Stub"#n"Ev,.-_ZN14nsXPTCStubBase7Stub"#n"Ev \n\t" \
+ \
+ ".else \n\t" \
+ ".err \"stub number "#n" >= 1000 not yet supported\"\n" \
+ ".endif \n\t" \
+ \
+ "li 11,"#n" \n\t" \
+ "b SharedStub \n" \
+);
+#else
+# define STUB_ENTRY(n) \
+__asm__ ( \
+ ".section \".toc\",\"aw\" \n\t" \
+ ".section \".text\" \n\t" \
+ ".align 2 \n\t" \
+ ".if "#n" < 10 \n\t" \
+ ".globl _ZN14nsXPTCStubBase5Stub"#n"Ev \n\t" \
+ ".section \".opd\",\"aw\" \n\t" \
+ ".align 3 \n\t" \
+"_ZN14nsXPTCStubBase5Stub"#n"Ev: \n\t" \
+ ".quad ._ZN14nsXPTCStubBase5Stub"#n"Ev,.TOC.@tocbase \n\t" \
+ ".previous \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" \
+ ".section \".opd\",\"aw\" \n\t" \
+ ".align 3 \n\t" \
+"_ZN14nsXPTCStubBase6Stub"#n"Ev: \n\t" \
+ ".quad ._ZN14nsXPTCStubBase6Stub"#n"Ev,.TOC.@tocbase \n\t" \
+ ".previous \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" \
+ ".section \".opd\",\"aw\" \n\t" \
+ ".align 3 \n\t" \
+"_ZN14nsXPTCStubBase7Stub"#n"Ev: \n\t" \
+ ".quad ._ZN14nsXPTCStubBase7Stub"#n"Ev,.TOC.@tocbase \n\t" \
+ ".previous \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 11,"#n" \n\t" \
+ "b SharedStub \n" \
+);
+#endif
+
+#define SENTINEL_ENTRY(n) \
+nsresult nsXPTCStubBase::Sentinel##n() \
+{ \
+ NS_ERROR("nsXPTCStubBase::Sentinel called"); \
+ return NS_ERROR_NOT_IMPLEMENTED; \
+}
+
+#include "xptcstubsdef.inc"
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