1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/xpcom/reflect/xptcall/src/md/unix/xptcstubs_asm_ppc_openbsd.S Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,72 @@
1.4 +// -*- Mode: Asm -*-
1.5 +//
1.6 +// This Source Code Form is subject to the terms of the Mozilla Public
1.7 +// License, v. 2.0. If a copy of the MPL was not distributed with this
1.8 +// file, You can obtain one at http://mozilla.org/MPL/2.0/.
1.9 +
1.10 +.set r0,0; .set sp,1; .set RTOC,2; .set r3,3; .set r4,4
1.11 +.set r5,5; .set r6,6; .set r7,7; .set r8,8; .set r9,9
1.12 +.set r10,10; .set r11,11; .set r12,12; .set r13,13; .set r14,14
1.13 +.set r15,15; .set r16,16; .set r17,17; .set r18,18; .set r19,19
1.14 +.set r20,20; .set r21,21; .set r22,22; .set r23,23; .set r24,24
1.15 +.set r25,25; .set r26,26; .set r27,27; .set r28,28; .set r29,29
1.16 +.set r30,30; .set r31,31
1.17 +.set f0,0; .set f1,1; .set f2,2; .set f3,3; .set f4,4
1.18 +.set f5,5; .set f6,6; .set f7,7; .set f8,8; .set f9,9
1.19 +.set f10,10; .set f11,11; .set f12,12; .set f13,13; .set f14,14
1.20 +.set f15,15; .set f16,16; .set f17,17; .set f18,18; .set f19,19
1.21 +.set f20,20; .set f21,21; .set f22,22; .set f23,23; .set f24,24
1.22 +.set f25,25; .set f26,26; .set f27,27; .set f28,28; .set f29,29
1.23 +.set f30,30; .set f31,31
1.24 +
1.25 + .section ".text"
1.26 + .align 2
1.27 + .globl SharedStub
1.28 + .type SharedStub,@function
1.29 +
1.30 +SharedStub:
1.31 + stwu sp,-112(sp) // room for
1.32 + // linkage (8),
1.33 + // gprData (32),
1.34 + // fprData (64),
1.35 + // stack alignment(8)
1.36 + mflr r0
1.37 + stw r0,116(sp) // save LR backchain
1.38 +
1.39 + stw r4,12(sp) // save GP registers
1.40 + stw r5,16(sp) // (n.b. that we don't save r3
1.41 + stw r6,20(sp) // because PrepareAndDispatch() is savvy)
1.42 + stw r7,24(sp)
1.43 + stw r8,28(sp)
1.44 + stw r9,32(sp)
1.45 + stw r10,36(sp)
1.46 +
1.47 + stfd f1,40(sp) // save FP registers
1.48 + stfd f2,48(sp)
1.49 + stfd f3,56(sp)
1.50 + stfd f4,64(sp)
1.51 + stfd f5,72(sp)
1.52 + stfd f6,80(sp)
1.53 + stfd f7,88(sp)
1.54 + stfd f8,96(sp)
1.55 +
1.56 + // r3 has the 'self' pointer already
1.57 +
1.58 + mr r4,r11 // r4 <= methodIndex selector, passed
1.59 + // via r11 in the nsXPTCStubBase::StubXX() call
1.60 +
1.61 + addi r5,sp,120 // r5 <= pointer to callers args area,
1.62 + // beyond r3-r10/f1-f8 mapped range
1.63 +
1.64 + addi r6,sp,8 // r6 <= gprData
1.65 + addi r7,sp,40 // r7 <= fprData
1.66 +
1.67 + bl PrepareAndDispatch@local // Go!
1.68 +
1.69 + lwz r0,116(sp) // restore LR
1.70 + mtlr r0
1.71 + la sp,112(sp) // clean up the stack
1.72 + blr
1.73 +
1.74 +// Magic indicating no need for an executable stack
1.75 +.section .note.GNU-stack, "", @progbits ; .previous
