summaryrefslogtreecommitdiffstats
path: root/src/libs/xpcom18a4/xpcom/reflect/xptcall/src/md/unix/xptcinvoke_linux_alpha.cpp
diff options
context:
space:
mode:
Diffstat (limited to 'src/libs/xpcom18a4/xpcom/reflect/xptcall/src/md/unix/xptcinvoke_linux_alpha.cpp')
-rw-r--r--src/libs/xpcom18a4/xpcom/reflect/xptcall/src/md/unix/xptcinvoke_linux_alpha.cpp181
1 files changed, 181 insertions, 0 deletions
diff --git a/src/libs/xpcom18a4/xpcom/reflect/xptcall/src/md/unix/xptcinvoke_linux_alpha.cpp b/src/libs/xpcom18a4/xpcom/reflect/xptcall/src/md/unix/xptcinvoke_linux_alpha.cpp
new file mode 100644
index 00000000..7f7d84c3
--- /dev/null
+++ b/src/libs/xpcom18a4/xpcom/reflect/xptcall/src/md/unix/xptcinvoke_linux_alpha.cpp
@@ -0,0 +1,181 @@
+/* -*- Mode: C; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/* ***** BEGIN LICENSE BLOCK *****
+ * Version: MPL 1.1/GPL 2.0/LGPL 2.1
+ *
+ * The contents of this file are subject to the Mozilla Public License Version
+ * 1.1 (the "License"); you may not use this file except in compliance with
+ * the License. You may obtain a copy of the License at
+ * http://www.mozilla.org/MPL/
+ *
+ * Software distributed under the License is distributed on an "AS IS" basis,
+ * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
+ * for the specific language governing rights and limitations under the
+ * License.
+ *
+ * The Original Code is mozilla.org code.
+ *
+ * The Initial Developer of the Original Code is
+ * Netscape Communications Corporation.
+ * Portions created by the Initial Developer are Copyright (C) 1998
+ * the Initial Developer. All Rights Reserved.
+ *
+ * Contributor(s):
+ * Glen Nakamura <glen@imodulo.com>
+ *
+ * Alternatively, the contents of this file may be used under the terms of
+ * either of the GNU General Public License Version 2 or later (the "GPL"),
+ * or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
+ * in which case the provisions of the GPL or the LGPL are applicable instead
+ * of those above. If you wish to allow use of your version of this file only
+ * under the terms of either the GPL or the LGPL, and not to allow others to
+ * use your version of this file under the terms of the MPL, indicate your
+ * decision by deleting the provisions above and replace them with the notice
+ * and other provisions required by the GPL or the LGPL. If you do not delete
+ * the provisions above, a recipient may use your version of this file under
+ * the terms of any one of the MPL, the GPL or the LGPL.
+ *
+ * ***** END LICENSE BLOCK ***** */
+
+/* Platform specific code to invoke XPCOM methods on native objects */
+
+#include "xptcprivate.h"
+
+/* Prototype specifies unmangled function name and disables unused warning */
+static void
+invoke_copy_to_stack(PRUint64* d, PRUint32 paramCount, nsXPTCVariant* s)
+__asm__("invoke_copy_to_stack") __attribute__((unused));
+
+static void
+invoke_copy_to_stack(PRUint64* d, PRUint32 paramCount, nsXPTCVariant* s)
+{
+ const PRUint8 NUM_ARG_REGS = 6-1; // -1 for "this" pointer
+
+ for(PRUint32 i = 0; i < paramCount; i++, d++, s++)
+ {
+ if(s->IsPtrData())
+ {
+ *d = (PRUint64)s->ptr;
+ continue;
+ }
+ switch(s->type)
+ {
+ case nsXPTType::T_I8 : *d = (PRUint64)s->val.i8; break;
+ case nsXPTType::T_I16 : *d = (PRUint64)s->val.i16; break;
+ case nsXPTType::T_I32 : *d = (PRUint64)s->val.i32; break;
+ case nsXPTType::T_I64 : *d = (PRUint64)s->val.i64; break;
+ case nsXPTType::T_U8 : *d = (PRUint64)s->val.u8; break;
+ case nsXPTType::T_U16 : *d = (PRUint64)s->val.u16; break;
+ case nsXPTType::T_U32 : *d = (PRUint64)s->val.u32; break;
+ case nsXPTType::T_U64 : *d = (PRUint64)s->val.u64; break;
+ case nsXPTType::T_FLOAT :
+ if(i < NUM_ARG_REGS)
+ {
+ // convert floats to doubles if they are to be passed
+ // via registers so we can just deal with doubles later
+ union { PRUint64 u64; double d; } t;
+ t.d = (double)s->val.f;
+ *d = t.u64;
+ }
+ else
+ // otherwise copy to stack normally
+ *d = (PRUint64)s->val.u32;
+ break;
+ case nsXPTType::T_DOUBLE : *d = (PRUint64)s->val.u64; break;
+ case nsXPTType::T_BOOL : *d = (PRUint64)s->val.b; break;
+ case nsXPTType::T_CHAR : *d = (PRUint64)s->val.c; break;
+ case nsXPTType::T_WCHAR : *d = (PRUint64)s->val.wc; break;
+ default:
+ // all the others are plain pointer types
+ *d = (PRUint64)s->val.p;
+ break;
+ }
+ }
+}
+
+/*
+ * XPTC_PUBLIC_API(nsresult)
+ * XPTC_InvokeByIndex(nsISupports* that, PRUint32 methodIndex,
+ * PRUint32 paramCount, nsXPTCVariant* params)
+ */
+__asm__(
+ "#### XPTC_InvokeByIndex ####\n"
+".text\n\t"
+ ".align 5\n\t"
+ ".globl XPTC_InvokeByIndex\n\t"
+ ".ent XPTC_InvokeByIndex\n"
+"XPTC_InvokeByIndex:\n\t"
+ ".frame $15,32,$26,0\n\t"
+ ".mask 0x4008000,-32\n\t"
+ "ldgp $29,0($27)\n"
+"$XPTC_InvokeByIndex..ng:\n\t"
+ "subq $30,32,$30\n\t"
+ "stq $26,0($30)\n\t"
+ "stq $15,8($30)\n\t"
+ "bis $30,$30,$15\n\t"
+ ".prologue 1\n\t"
+
+ /*
+ * Allocate enough stack space to hold the greater of 6 or "paramCount"+1
+ * parameters. (+1 for "this" pointer) Room for at least 6 parameters
+ * is required for storage of those passed via registers.
+ */
+
+ "bis $31,5,$2\n\t" /* count = MAX(5, "paramCount") */
+ "cmplt $2,$18,$1\n\t"
+ "cmovne $1,$18,$2\n\t"
+ "s8addq $2,16,$1\n\t" /* room for count+1 params (8 bytes each) */
+ "bic $1,15,$1\n\t" /* stack space is rounded up to 0 % 16 */
+ "subq $30,$1,$30\n\t"
+
+ "stq $16,0($30)\n\t" /* save "that" (as "this" pointer) */
+ "stq $17,16($15)\n\t" /* save "methodIndex" */
+
+ "addq $30,8,$16\n\t" /* pass stack pointer */
+ "bis $18,$18,$17\n\t" /* pass "paramCount" */
+ "bis $19,$19,$18\n\t" /* pass "params" */
+ "bsr $26,$invoke_copy_to_stack..ng\n\t" /* call invoke_copy_to_stack */
+
+ /*
+ * Copy the first 6 parameters to registers and remove from stack frame.
+ * Both the integer and floating point registers are set for each parameter
+ * except the first which is the "this" pointer. (integer only)
+ * The floating point registers are all set as doubles since the
+ * invoke_copy_to_stack function should have converted the floats.
+ */
+ "ldq $16,0($30)\n\t" /* integer registers */
+ "ldq $17,8($30)\n\t"
+ "ldq $18,16($30)\n\t"
+ "ldq $19,24($30)\n\t"
+ "ldq $20,32($30)\n\t"
+ "ldq $21,40($30)\n\t"
+ "ldt $f17,8($30)\n\t" /* floating point registers */
+ "ldt $f18,16($30)\n\t"
+ "ldt $f19,24($30)\n\t"
+ "ldt $f20,32($30)\n\t"
+ "ldt $f21,40($30)\n\t"
+
+ "addq $30,48,$30\n\t" /* remove params from stack */
+
+ /*
+ * Call the virtual function with the constructed stack frame.
+ */
+ "bis $16,$16,$1\n\t" /* load "this" */
+ "ldq $2,16($15)\n\t" /* load "methodIndex" */
+ "ldq $1,0($1)\n\t" /* load vtable */
+#if defined(__GXX_ABI_VERSION) && __GXX_ABI_VERSION >= 100 /* G++ V3 ABI */
+ "s8addq $2,$31,$2\n\t" /* vtable index = "methodIndex" * 8 */
+#else /* not G++ V3 ABI */
+ "s8addq $2,16,$2\n\t" /* vtable index = "methodIndex" * 8 + 16 */
+#endif /* G++ V3 ABI */
+ "addq $1,$2,$1\n\t"
+ "ldq $27,0($1)\n\t" /* load address of function */
+ "jsr $26,($27),0\n\t" /* call virtual function */
+ "ldgp $29,0($26)\n\t"
+
+ "bis $15,$15,$30\n\t"
+ "ldq $26,0($30)\n\t"
+ "ldq $15,8($30)\n\t"
+ "addq $30,32,$30\n\t"
+ "ret $31,($26),1\n\t"
+ ".end XPTC_InvokeByIndex"
+ );