1// -*- Mode: Asm -*- 2// 3// This Source Code Form is subject to the terms of the Mozilla Public 4// License, v. 2.0. If a copy of the MPL was not distributed with this 5// file, You can obtain one at http://mozilla.org/MPL/2.0/. 6 7.set r0,0; .set sp,1; .set RTOC,2; .set r3,3; .set r4,4 8.set r5,5; .set r6,6; .set r7,7; .set r8,8; .set r9,9 9.set r10,10; .set r11,11; .set r12,12; .set r13,13; .set r14,14 10.set r15,15; .set r16,16; .set r17,17; .set r18,18; .set r19,19 11.set r20,20; .set r21,21; .set r22,22; .set r23,23; .set r24,24 12.set r25,25; .set r26,26; .set r27,27; .set r28,28; .set r29,29 13.set r30,30; .set r31,31 14.set f0,0; .set f1,1; .set f2,2; .set f3,3; .set f4,4 15.set f5,5; .set f6,6; .set f7,7; .set f8,8; .set f9,9 16.set f10,10; .set f11,11; .set f12,12; .set f13,13; .set f14,14 17.set f15,15; .set f16,16; .set f17,17; .set f18,18; .set f19,19 18.set f20,20; .set f21,21; .set f22,22; .set f23,23; .set f24,24 19.set f25,25; .set f26,26; .set f27,27; .set f28,28; .set f29,29 20.set f30,30; .set f31,31 21 22 .section ".text" 23 .align 2 24 .globl SharedStub 25 .type SharedStub,@function 26 27SharedStub: 28 stwu sp,-112(sp) // room for 29 // linkage (8), 30 // gprData (32), 31 // fprData (64), 32 // stack alignment(8) 33 mflr r0 34 stw r0,116(sp) // save LR backchain 35 36 stw r4,12(sp) // save GP registers 37 stw r5,16(sp) // (n.b. that we don't save r3 38 stw r6,20(sp) // because PrepareAndDispatch() is savvy) 39 stw r7,24(sp) 40 stw r8,28(sp) 41 stw r9,32(sp) 42 stw r10,36(sp) 43#ifndef __NO_FPRS__ 44 stfd f1,40(sp) // save FP registers 45 stfd f2,48(sp) 46 stfd f3,56(sp) 47 stfd f4,64(sp) 48 stfd f5,72(sp) 49 stfd f6,80(sp) 50 stfd f7,88(sp) 51 stfd f8,96(sp) 52#endif 53 54 // r3 has the 'self' pointer already 55 56 mr r4,r11 // r4 <= methodIndex selector, passed 57 // via r11 in the nsXPTCStubBase::StubXX() call 58 59 addi r5,sp,120 // r5 <= pointer to callers args area, 60 // beyond r3-r10/f1-f8 mapped range 61 62 addi r6,sp,8 // r6 <= gprData 63#ifndef __NO_FPRS__ 64 addi r7,sp,40 // r7 <= fprData 65#else 66 li r7, 0 // r7 should be unused 67#endif 68 69 bl PrepareAndDispatch@local // Go! 70 71 lwz r0,116(sp) // restore LR 72 mtlr r0 73 la sp,112(sp) // clean up the stack 74 blr 75 76/* Magic indicating no need for an executable stack */ 77.section .note.GNU-stack, "", @progbits ; .previous 78