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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/xptcinvoke_ppc64_linux.cpp
parent49ee0794b5d912db1f95dce6eb52d781dc210db5 (diff)
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Add m-esr52 at 52.6.0
Diffstat (limited to 'xpcom/reflect/xptcall/md/unix/xptcinvoke_ppc64_linux.cpp')
-rw-r--r--xpcom/reflect/xptcall/md/unix/xptcinvoke_ppc64_linux.cpp97
1 files changed, 97 insertions, 0 deletions
diff --git a/xpcom/reflect/xptcall/md/unix/xptcinvoke_ppc64_linux.cpp b/xpcom/reflect/xptcall/md/unix/xptcinvoke_ppc64_linux.cpp
new file mode 100644
index 000000000..c93dc4621
--- /dev/null
+++ b/xpcom/reflect/xptcall/md/unix/xptcinvoke_ppc64_linux.cpp
@@ -0,0 +1,97 @@
+/* -*- 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/. */
+
+// Platform specific code to invoke XPCOM methods on native objects
+
+// The purpose of NS_InvokeByIndex() is to map a platform
+// independent call to the platform ABI. To do that,
+// NS_InvokeByIndex() has to determine the method to call via vtable
+// access. The parameters for the method are read from the
+// nsXPTCVariant* and prepared for the native ABI.
+
+// 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
+
+#include <stdio.h>
+#include "xptcprivate.h"
+
+// 8 integral parameters are passed in registers, not including 'that'
+#define GPR_COUNT 7
+
+// 8 floating point parameters are passed in registers, floats are
+// promoted to doubles when passed in registers
+#define FPR_COUNT 13
+
+extern "C" uint32_t
+invoke_count_words(uint32_t paramCount, nsXPTCVariant* s)
+{
+ return uint32_t(((paramCount * 2) + 3) & ~3);
+}
+
+extern "C" void
+invoke_copy_to_stack(uint64_t* gpregs,
+ double* fpregs,
+ uint32_t paramCount,
+ nsXPTCVariant* s,
+ uint64_t* d)
+{
+ uint64_t tempu64;
+
+ for(uint32_t i = 0; i < paramCount; i++, s++) {
+ if(s->IsPtrData())
+ tempu64 = (uint64_t) s->ptr;
+ else {
+ switch(s->type) {
+ case nsXPTType::T_FLOAT: break;
+ case nsXPTType::T_DOUBLE: break;
+ case nsXPTType::T_I8: tempu64 = s->val.i8; break;
+ case nsXPTType::T_I16: tempu64 = s->val.i16; break;
+ case nsXPTType::T_I32: tempu64 = s->val.i32; break;
+ case nsXPTType::T_I64: tempu64 = s->val.i64; break;
+ case nsXPTType::T_U8: tempu64 = s->val.u8; break;
+ case nsXPTType::T_U16: tempu64 = s->val.u16; break;
+ case nsXPTType::T_U32: tempu64 = s->val.u32; break;
+ case nsXPTType::T_U64: tempu64 = s->val.u64; break;
+ case nsXPTType::T_BOOL: tempu64 = s->val.b; break;
+ case nsXPTType::T_CHAR: tempu64 = s->val.c; break;
+ case nsXPTType::T_WCHAR: tempu64 = s->val.wc; break;
+ default: tempu64 = (uint64_t) s->val.p; break;
+ }
+ }
+
+ if (!s->IsPtrData() && s->type == nsXPTType::T_DOUBLE) {
+ if (i < FPR_COUNT)
+ fpregs[i] = s->val.d;
+ else
+ *(double *)d = s->val.d;
+ }
+ else if (!s->IsPtrData() && s->type == nsXPTType::T_FLOAT) {
+ if (i < FPR_COUNT) {
+ fpregs[i] = s->val.f; // if passed in registers, floats are promoted to doubles
+ } else {
+ float *p = (float *)d;
+#ifndef __LITTLE_ENDIAN__
+ p++;
+#endif
+ *p = s->val.f;
+ }
+ }
+ else {
+ if (i < GPR_COUNT)
+ gpregs[i] = tempu64;
+ else
+ *d = tempu64;
+ }
+ if (i >= 7)
+ d++;
+ }
+}
+
+EXPORT_XPCOM_API(nsresult)
+NS_InvokeByIndex(nsISupports* that, uint32_t methodIndex,
+ uint32_t paramCount, nsXPTCVariant* params);
+