diff options
Diffstat (limited to 'www/mozilla/files/xptcinvoke_asm_sparc64_netbsd.s')
| -rw-r--r-- | www/mozilla/files/xptcinvoke_asm_sparc64_netbsd.s | 98 |
1 files changed, 98 insertions, 0 deletions
diff --git a/www/mozilla/files/xptcinvoke_asm_sparc64_netbsd.s b/www/mozilla/files/xptcinvoke_asm_sparc64_netbsd.s new file mode 100644 index 00000000000..4e9362822ac --- /dev/null +++ b/www/mozilla/files/xptcinvoke_asm_sparc64_netbsd.s @@ -0,0 +1,98 @@ +/* -*- Mode: C; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*- + * + * The contents of this file are subject to the Netscape 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/NPL/ + * + * 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) 1998 Netscape Communications Corporation. All + * Rights Reserved. + * + * Contributor(s): + */ + +/* Platform specific code to invoke XPCOM methods on native objects */ + .global XPTC_InvokeByIndex +/* + XPTC_InvokeByIndex(nsISupports* that, PRUint32 methodIndex, + PRUint32 paramCount, nsXPTCVariant* params); + +*/ +/* + * Note: To simplify stack handling we allocate an extra stack + * frame here. In principle invoke_copy_to_stack() could + * save the parameters our caller's frame and we could + * reclaim the stackframe and do a tail call to the + * function. However, this gets complicated.... + * + * The vtable consist of be: + * + * struct { + * short __delta; + * short __index; + * union { + * P __pfn; + * short __delta2; + * } __pfn_or_delta2; + * }; + * + * See gcc/cp/cp-tree.h + */ + +XPTC_InvokeByIndex: + save %sp,-(128+8),%sp ! room for the register window and this + sllx %i2,3,%l0 ! required stack size in bytes + sub %sp,%l0,%sp ! create the additional stack space + + add %sp,0x7ff+128,%l2 ! pointer to parameter save area + add %l2,8,%o0 ! %o1's parameter save area + mov %i2,%o1 ! paramCount + call invoke_copy_to_stack + mov %i3,%o2 ! params +! +! calculate the target address from the vtable +! + inc %i1 ! vTable is zero-based, index is 1 based (?) + ldx [%i0],%l1 ! *that --> vTable + sllx %i1,4,%i1 ! Each vtable entry is 16-bytes long + add %i1,%l1,%l1 + ldsh [%l1],%l0 ! this adjustor + add %l0,%i0,%i0 ! adjust this + ldx [%l1 + 8],%l0 ! target address + +.L15: ldd [%sp + 0x7ff + 128 + 120],%f30 +.L14: ldd [%sp + 0x7ff + 128 + 112],%f28 +.L13: ldd [%sp + 0x7ff + 128 + 104],%f26 +.L12: ldd [%sp + 0x7ff + 128 + 96],%f24 +.L11: ldd [%sp + 0x7ff + 128 + 88],%f22 +.L10: ldd [%sp + 0x7ff + 128 + 80],%f20 +.L9: ldd [%sp + 0x7ff + 128 + 72],%f18 +.L8: ldd [%sp + 0x7ff + 128 + 64],%f16 +.L7: ldd [%sp + 0x7ff + 128 + 56],%f14 +.L6: ldd [%sp + 0x7ff + 128 + 48],%f12 +.L5: ldx [%sp + 0x7ff + 128 + 40],%o5 + ldd [%sp + 0x7ff + 128 + 40],%f10 +.L4: ldx [%sp + 0x7ff + 128 + 32],%o4 + ldd [%sp + 0x7ff + 128 + 32],%f8 +.L3: ldx [%sp + 0x7ff + 128 + 24],%o3 + ldd [%sp + 0x7ff + 128 + 24],%f6 +.L2: ldx [%sp + 0x7ff + 128 + 16],%o2 + ldd [%sp + 0x7ff + 128 + 16],%f4 +.L1: ldx [%sp + 0x7ff + 128 + 8],%o1 + ldd [%sp + 0x7ff + 128 + 8],%f2 +.L0: + jmpl %l0,%o7 ! call the routine +! always have a 'this', from the incoming 'that' + mov %i0,%o0 + + ret + restore %o0,0,%o0 ! propogate return value |