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Diffstat (limited to '')
| -rw-r--r-- | src/libs/xpcom18a4/xpcom/reflect/xptcall/src/md/unix/xptcinvoke_asm_sparcv9_solaris_SUNW.s | 103 |
1 files changed, 103 insertions, 0 deletions
diff --git a/src/libs/xpcom18a4/xpcom/reflect/xptcall/src/md/unix/xptcinvoke_asm_sparcv9_solaris_SUNW.s b/src/libs/xpcom18a4/xpcom/reflect/xptcall/src/md/unix/xptcinvoke_asm_sparcv9_solaris_SUNW.s new file mode 100644 index 00000000..232ed6bd --- /dev/null +++ b/src/libs/xpcom18a4/xpcom/reflect/xptcall/src/md/unix/xptcinvoke_asm_sparcv9_solaris_SUNW.s @@ -0,0 +1,103 @@ +/* -*- Mode: asm; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- + * + * 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 Netscape are + * Copyright (C) 2001 Netscape Communications Corporation. All + * Rights Reserved. + * + * Contributor(s): + * Stuart Parmenter <pavlov@netscape.com> + * Chris Seawood <cls@seawood.org> + */ + +/* + Platform specific code to invoke XPCOM methods on native objects + for sparcv9 Solaris. + + See the SPARC Compliance Definition (SCD) Chapter 3 + for more information about what is going on here, including + the use of BIAS (0x7ff). + The SCD is available from http://www.sparc.com/. +*/ + + .global XPTC_InvokeByIndex + .type XPTC_InvokeByIndex, #function + +/* + XPTC_InvokeByIndex(nsISupports* that, PRUint32 methodIndex, + PRUint32 paramCount, nsXPTCVariant* params); + +*/ +XPTC_InvokeByIndex: + save %sp,-(128 + 64),%sp ! room for the register window and + ! struct pointer, rounded up to 0 % 64 + sll %i2,4,%l0 ! assume the worst case + ! paramCount * 2 * 8 bytes + cmp %l0, 0 ! are there any args? If not, + be .invoke ! no need to copy args to stack + + sub %sp,%l0,%sp ! create the additional stack space + add %sp,0x7ff+136,%o0 ! step past the register window, the + ! struct result pointer and the 'this' slot + mov %i2,%o1 ! paramCount + call invoke_copy_to_stack + mov %i3,%o2 ! params + +! +! load arguments from stack into the outgoing registers +! BIAS is 0x7ff (2047) +! + +! load the %o1..5 64bit (extended word) output registers registers + ldx [%sp + 0x7ff + 136],%o1 ! %i1 + ldx [%sp + 0x7ff + 144],%o2 ! %i2 + ldx [%sp + 0x7ff + 152],%o3 ! %i3 + ldx [%sp + 0x7ff + 160],%o4 ! %i4 + ldx [%sp + 0x7ff + 168],%o5 ! %i5 + +! load the even number double registers starting with %d2 + ldd [%sp + 0x7ff + 136],%d2 + ldd [%sp + 0x7ff + 144],%d4 + ldd [%sp + 0x7ff + 152],%d6 + ldd [%sp + 0x7ff + 160],%d8 + ldd [%sp + 0x7ff + 168],%d10 + ldd [%sp + 0x7ff + 176],%d12 + ldd [%sp + 0x7ff + 184],%d14 + ldd [%sp + 0x7ff + 192],%d16 + ldd [%sp + 0x7ff + 200],%d18 + ldd [%sp + 0x7ff + 208],%d20 + ldd [%sp + 0x7ff + 216],%d22 + ldd [%sp + 0x7ff + 224],%d24 + ldd [%sp + 0x7ff + 232],%d26 + ldd [%sp + 0x7ff + 240],%d28 + ldd [%sp + 0x7ff + 248],%d30 + +! +! calculate the target address from the vtable +! +.invoke: + sll %i1,3,%l0 ! index *= 8 + add %l0,16,%l0 ! there are 2 extra entries in the vTable (16bytes) + ldx [%i0],%l1 ! *that --> address of vtable + ldx [%l0 + %l1],%l0 ! that->vtable[index * 8 + 16] --> address + + jmpl %l0,%o7 ! call the routine + mov %i0,%o0 ! move 'this' pointer to out register + + mov %o0,%i0 ! propagate return value + ret + restore + + .size XPTC_InvokeByIndex, .-XPTC_InvokeByIndex |