diff options
Diffstat (limited to 'xpcom/reflect/xptcall/md/unix/xptcinvoke_asm_sparc_solaris_SUNW.s')
| -rw-r--r-- | xpcom/reflect/xptcall/md/unix/xptcinvoke_asm_sparc_solaris_SUNW.s | 56 |
1 files changed, 56 insertions, 0 deletions
diff --git a/xpcom/reflect/xptcall/md/unix/xptcinvoke_asm_sparc_solaris_SUNW.s b/xpcom/reflect/xptcall/md/unix/xptcinvoke_asm_sparc_solaris_SUNW.s new file mode 100644 index 000000000..013770392 --- /dev/null +++ b/xpcom/reflect/xptcall/md/unix/xptcinvoke_asm_sparc_solaris_SUNW.s @@ -0,0 +1,56 @@ +/* -*- 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 */ + + .global NS_InvokeByIndex + .type NS_InvokeByIndex, #function +/* + NS_InvokeByIndex(nsISupports* that, uint32_t methodIndex, + uint32_t paramCount, nsXPTCVariant* params); + +*/ +NS_InvokeByIndex: + save %sp,-(64 + 32),%sp ! room for the register window and + ! struct pointer, rounded up to 0 % 32 + sll %i2,3,%l0 ! assume the worst case + ! paramCount * 2 * 4 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,72,%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 +! + ld [%sp + 72],%o1 + ld [%sp + 76],%o2 + ld [%sp + 80],%o3 + ld [%sp + 84],%o4 + ld [%sp + 88],%o5 + +! +! calculate the target address from the vtable +! +.invoke: + sll %i1,2,%l0 ! index *= 4 + add %l0,8,%l0 ! there are 2 extra entries in the vTable + ld [%i0],%l1 ! *that --> address of vtable + ld [%l0 + %l1],%l0 ! that->vtable[index * 4 + 8] --> 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 NS_InvokeByIndex, .-NS_InvokeByIndex |