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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_ppc_openbsd.cpp
parent49ee0794b5d912db1f95dce6eb52d781dc210db5 (diff)
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Add m-esr52 at 52.6.0
Diffstat (limited to 'xpcom/reflect/xptcall/md/unix/xptcinvoke_ppc_openbsd.cpp')
-rw-r--r--xpcom/reflect/xptcall/md/unix/xptcinvoke_ppc_openbsd.cpp109
1 files changed, 109 insertions, 0 deletions
diff --git a/xpcom/reflect/xptcall/md/unix/xptcinvoke_ppc_openbsd.cpp b/xpcom/reflect/xptcall/md/unix/xptcinvoke_ppc_openbsd.cpp
new file mode 100644
index 000000000..5353220fe
--- /dev/null
+++ b/xpcom/reflect/xptcall/md/unix/xptcinvoke_ppc_openbsd.cpp
@@ -0,0 +1,109 @@
+/* -*- 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
+// indepenpent 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 th native ABI. For the Linux/PPC
+// ABI this means that the first 8 integral and floating point
+// parameters are passed in registers.
+
+#include "xptcprivate.h"
+
+// 8 integral parameters are passed in registers
+#define GPR_COUNT 8
+
+// 8 floating point parameters are passed in registers, floats are
+// promoted to doubles when passed in registers
+#define FPR_COUNT 8
+
+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(uint32_t* d,
+ uint32_t paramCount,
+ nsXPTCVariant* s,
+ uint32_t* gpregs,
+ double* fpregs)
+{
+ uint32_t gpr = 1; // skip one GP reg for 'that'
+ uint32_t fpr = 0;
+ uint32_t tempu32;
+ uint64_t tempu64;
+
+ for(uint32_t i = 0; i < paramCount; i++, s++) {
+ if(s->IsPtrData()) {
+ if(s->type == nsXPTType::T_JSVAL)
+ tempu32 = (uint32_t) &(s->ptr);
+ else
+ tempu32 = (uint32_t) s->ptr;
+ } else {
+ switch(s->type) {
+ case nsXPTType::T_FLOAT: break;
+ case nsXPTType::T_DOUBLE: break;
+ case nsXPTType::T_I8: tempu32 = s->val.i8; break;
+ case nsXPTType::T_I16: tempu32 = s->val.i16; break;
+ case nsXPTType::T_I32: tempu32 = s->val.i32; break;
+ case nsXPTType::T_I64: tempu64 = s->val.i64; break;
+ case nsXPTType::T_U8: tempu32 = s->val.u8; break;
+ case nsXPTType::T_U16: tempu32 = s->val.u16; break;
+ case nsXPTType::T_U32: tempu32 = s->val.u32; break;
+ case nsXPTType::T_U64: tempu64 = s->val.u64; break;
+ case nsXPTType::T_BOOL: tempu32 = s->val.b; break;
+ case nsXPTType::T_CHAR: tempu32 = s->val.c; break;
+ case nsXPTType::T_WCHAR: tempu32 = s->val.wc; break;
+ default: tempu32 = (uint32_t) s->val.p; break;
+ }
+ }
+
+ if (!s->IsPtrData() && s->type == nsXPTType::T_DOUBLE) {
+ if (fpr < FPR_COUNT)
+ fpregs[fpr++] = s->val.d;
+ else {
+ if ((uint32_t) d & 4) d++; // doubles are 8-byte aligned on stack
+ *((double*) d) = s->val.d;
+ d += 2;
+ }
+ }
+ else if (!s->IsPtrData() && s->type == nsXPTType::T_FLOAT) {
+ if (fpr < FPR_COUNT)
+ fpregs[fpr++] = s->val.f; // if passed in registers, floats are promoted to doubles
+ else
+ *((float*) d++) = s->val.f;
+ }
+ else if (!s->IsPtrData() && (s->type == nsXPTType::T_I64
+ || s->type == nsXPTType::T_U64)) {
+ if ((gpr + 1) < GPR_COUNT) {
+ if (gpr & 1) gpr++; // longlongs are aligned in odd/even register pairs, eg. r5/r6
+ *((uint64_t*) &gpregs[gpr]) = tempu64;
+ gpr += 2;
+ }
+ else {
+ if ((uint32_t) d & 4) d++; // longlongs are 8-byte aligned on stack
+ *((uint64_t*) d) = tempu64;
+ d += 2;
+ }
+ }
+ else {
+ if (gpr < GPR_COUNT)
+ gpregs[gpr++] = tempu32;
+ else
+ *d++ = tempu32;
+ }
+
+ }
+}
+
+extern "C"
+EXPORT_XPCOM_API(nsresult)
+NS_InvokeByIndex(nsISupports* that, uint32_t methodIndex,
+ uint32_t paramCount, nsXPTCVariant* params);