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-rw-r--r--xpcom/reflect/xptcall/md/unix/xptcstubs_alpha_openbsd.cpp189
1 files changed, 189 insertions, 0 deletions
diff --git a/xpcom/reflect/xptcall/md/unix/xptcstubs_alpha_openbsd.cpp b/xpcom/reflect/xptcall/md/unix/xptcstubs_alpha_openbsd.cpp
new file mode 100644
index 000000000..d538767e1
--- /dev/null
+++ b/xpcom/reflect/xptcall/md/unix/xptcstubs_alpha_openbsd.cpp
@@ -0,0 +1,189 @@
+/* -*- 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"
+
+/* Prototype specifies unmangled function name and disables unused warning */
+static nsresult
+PrepareAndDispatch(nsXPTCStubBase* self, uint32_t methodIndex, uint64_t* args)
+__asm__("PrepareAndDispatch") ATTRIBUTE_USED;
+
+static nsresult
+PrepareAndDispatch(nsXPTCStubBase* self, uint32_t methodIndex, uint64_t* args)
+{
+ const uint8_t PARAM_BUFFER_COUNT = 16;
+ const uint8_t NUM_ARG_REGS = 6-1; // -1 for "this" pointer
+
+ nsXPTCMiniVariant paramBuffer[PARAM_BUFFER_COUNT];
+ nsXPTCMiniVariant* dispatchParams = nullptr;
+ const nsXPTMethodInfo* info;
+ uint8_t paramCount;
+ uint8_t i;
+ nsresult result = NS_ERROR_FAILURE;
+
+ NS_ASSERTION(self,"no self");
+
+ self->mEntry->GetMethodInfo(uint16_t(methodIndex), &info);
+
+ 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;
+
+ // args[0] to args[NUM_ARG_REGS] hold floating point register values
+ uint64_t* ap = args + NUM_ARG_REGS;
+ for(i = 0; i < paramCount; i++, ap++)
+ {
+ const nsXPTParamInfo& param = info->GetParam(i);
+ const nsXPTType& type = param.GetType();
+ nsXPTCMiniVariant* dp = &dispatchParams[i];
+
+ if(param.IsOut() || !type.IsArithmetic())
+ {
+ dp->val.p = (void*) *ap;
+ continue;
+ }
+ // else
+ switch(type)
+ {
+ case nsXPTType::T_I8 : dp->val.i8 = (int8_t) *ap; break;
+ case nsXPTType::T_I16 : dp->val.i16 = (int16_t) *ap; break;
+ case nsXPTType::T_I32 : dp->val.i32 = (int32_t) *ap; break;
+ case nsXPTType::T_I64 : dp->val.i64 = (int64_t) *ap; break;
+ case nsXPTType::T_U8 : dp->val.u8 = (uint8_t) *ap; break;
+ case nsXPTType::T_U16 : dp->val.u16 = (uint16_t) *ap; break;
+ case nsXPTType::T_U32 : dp->val.u32 = (uint32_t) *ap; break;
+ case nsXPTType::T_U64 : dp->val.u64 = (uint64_t) *ap; break;
+ case nsXPTType::T_FLOAT :
+ if(i < NUM_ARG_REGS)
+ {
+ // floats passed via registers are stored as doubles
+ // in the first NUM_ARG_REGS entries in args
+ dp->val.u64 = (uint64_t) args[i];
+ dp->val.f = (float) dp->val.d; // convert double to float
+ }
+ else
+ dp->val.u32 = (uint32_t) *ap;
+ break;
+ case nsXPTType::T_DOUBLE :
+ // doubles passed via registers are also stored
+ // in the first NUM_ARG_REGS entries in args
+ dp->val.u64 = (i < NUM_ARG_REGS) ? args[i] : *ap;
+ break;
+ case nsXPTType::T_BOOL : dp->val.b = (bool) *ap; break;
+ case nsXPTType::T_CHAR : dp->val.c = (char) *ap; break;
+ case nsXPTType::T_WCHAR : dp->val.wc = (char16_t) *ap; break;
+ default:
+ NS_ERROR("bad type");
+ break;
+ }
+ }
+
+ result = self->mOuter->CallMethod((uint16_t)methodIndex, info, dispatchParams);
+
+ if(dispatchParams != paramBuffer)
+ delete [] dispatchParams;
+
+ return result;
+}
+
+/*
+ * SharedStub()
+ * Collects arguments and calls PrepareAndDispatch. The "methodIndex" is
+ * passed to this function via $1 to preserve the argument registers.
+ */
+__asm__(
+ "#### SharedStub ####\n"
+".text\n\t"
+ ".align 5\n\t"
+ ".ent SharedStub\n"
+"SharedStub:\n\t"
+ ".frame $30,96,$26,0\n\t"
+ ".mask 0x4000000,-96\n\t"
+ "ldgp $29,0($27)\n"
+"$SharedStub..ng:\n\t"
+ "subq $30,96,$30\n\t"
+ "stq $26,0($30)\n\t"
+ ".prologue 1\n\t"
+
+ /*
+ * Store arguments passed via registers to the stack.
+ * Floating point registers are stored as doubles and converted
+ * to floats in PrepareAndDispatch if necessary.
+ */
+ "stt $f17,16($30)\n\t" /* floating point registers */
+ "stt $f18,24($30)\n\t"
+ "stt $f19,32($30)\n\t"
+ "stt $f20,40($30)\n\t"
+ "stt $f21,48($30)\n\t"
+ "stq $17,56($30)\n\t" /* integer registers */
+ "stq $18,64($30)\n\t"
+ "stq $19,72($30)\n\t"
+ "stq $20,80($30)\n\t"
+ "stq $21,88($30)\n\t"
+
+ /*
+ * Call PrepareAndDispatch function.
+ */
+ "bis $1,$1,$17\n\t" /* pass "methodIndex" */
+ "addq $30,16,$18\n\t" /* pass "args" */
+ "bsr $26,$PrepareAndDispatch..ng\n\t"
+
+ "ldq $26,0($30)\n\t"
+ "addq $30,96,$30\n\t"
+ "ret $31,($26),1\n\t"
+ ".end SharedStub"
+ );
+
+/*
+ * nsresult nsXPTCStubBase::Stub##n()
+ * Sets register $1 to "methodIndex" and jumps to SharedStub.
+ */
+#define STUB_MANGLED_ENTRY(n, symbol) \
+ "#### Stub"#n" ####" "\n\t" \
+ ".text" "\n\t" \
+ ".align 5" "\n\t" \
+ ".globl " symbol "\n\t" \
+ ".ent " symbol "\n" \
+symbol ":" "\n\t" \
+ ".frame $30,0,$26,0" "\n\t" \
+ "ldgp $29,0($27)" "\n" \
+"$" symbol "..ng:" "\n\t" \
+ ".prologue 1" "\n\t" \
+ "lda $1,"#n "\n\t" \
+ "br $31,$SharedStub..ng" "\n\t" \
+ ".end " symbol
+
+#define STUB_ENTRY(n) \
+__asm__( \
+ ".if "#n" < 10" "\n\t" \
+ STUB_MANGLED_ENTRY(n, "_ZN14nsXPTCStubBase5Stub"#n"Ev") "\n\t" \
+ ".elseif "#n" < 100" "\n\t" \
+ STUB_MANGLED_ENTRY(n, "_ZN14nsXPTCStubBase6Stub"#n"Ev") "\n\t" \
+ ".elseif "#n" < 1000" "\n\t" \
+ STUB_MANGLED_ENTRY(n, "_ZN14nsXPTCStubBase7Stub"#n"Ev") "\n\t" \
+ ".else" "\n\t" \
+ ".err \"Stub"#n" >= 1000 not yet supported.\"" "\n\t" \
+ ".endif" \
+ );
+
+#define SENTINEL_ENTRY(n) \
+nsresult nsXPTCStubBase::Sentinel##n() \
+{ \
+ NS_ERROR("nsXPTCStubBase::Sentinel called"); \
+ return NS_ERROR_NOT_IMPLEMENTED; \
+}
+
+#include "xptcstubsdef.inc"