1/* -*- Mode: asm; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- 2 * Version: MPL 1.1 3 * 4 * This Source Code Form is subject to the terms of the Mozilla Public 5 * License, v. 2.0. If a copy of the MPL was not distributed with this 6 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ 7 8 .LEVEL 1.1 9 .TEXT 10 .ALIGN 4 11 12curframesz: 13 .EQU 128 14 15 16; SharedStub has stack size of 128 bytes 17 18lastframesz: 19 .EQU 64 20 21; the StubN C++ function has a small stack size of 64 bytes 22 23 24.globl SharedStub 25 .type SharedStub, @function 26 27SharedStub: 28 .PROC 29 .CALLINFO CALLER,FRAME=80,SAVE_RP 30 31 .ENTRY 32 STW %rp,-20(%sp) 33 LDO 128(%sp),%sp 34 35 STW %r19,-32(%r30) 36 STW %r26,-36-curframesz(%r30) ; save arg0 in previous frame 37 38 LDO -80(%r30),%r28 39 FSTD,MA %fr5,8(%r28) ; save darg0 40 FSTD,MA %fr7,8(%r28) ; save darg1 41 FSTW,MA %fr4L,4(%r28) ; save farg0 42 FSTW,MA %fr5L,4(%r28) ; save farg1 43 FSTW,MA %fr6L,4(%r28) ; save farg2 44 FSTW,MA %fr7L,4(%r28) ; save farg3 45 46 ; Former value of register 26 is already properly saved by StubN, 47 ; but register 25-23 are not because of the argument mismatch 48 STW %r25,-40-curframesz-lastframesz(%r30) ; save r25 49 STW %r24,-44-curframesz-lastframesz(%r30) ; save r24 50 STW %r23,-48-curframesz-lastframesz(%r30) ; save r23 51 COPY %r26,%r25 ; method index is arg1 52 LDW -36-curframesz-lastframesz(%r30),%r26 ; self is arg0 53 LDO -40-curframesz-lastframesz(%r30),%r24 ; normal args is arg2 54 LDO -80(%r30),%r23 ; floating args is arg3 55 56 .CALL ARGW0=GR,ARGW1=GR,ARGW2=GR,ARGW3=GR,RTNVAL=GR ;in=23-26;out=28; 57 BL PrepareAndDispatch, %r31 58 COPY %r31,%r2 59 60 LDW -32(%r30),%r19 61 62 LDW -148(%sp),%rp 63 LDO -128(%sp),%sp 64 65 66 BV,N (%rp) 67 NOP 68 NOP 69 70 .EXIT 71 .PROCEND ;in=26;out=28; 72 73 .SIZE SharedStub, .-SharedStub 74