1# This Source Code Form is subject to the terms of the Mozilla Public 2# License, v. 2.0. If a copy of the MPL was not distributed with this 3# file, You can obtain one at http://mozilla.org/MPL/2.0/. 4 5.set r0,0; .set r1,1; .set RTOC,2; .set r3,3; .set r4,4 6.set r5,5; .set r6,6; .set r7,7; .set r8,8; .set r9,9 7.set r10,10; .set r11,11; .set r12,12; .set r13,13; .set r14,14 8.set r15,15; .set r16,16; .set r17,17; .set r18,18; .set r19,19 9.set r20,20; .set r21,21; .set r22,22; .set r23,23; .set r24,24 10.set r25,25; .set r26,26; .set r27,27; .set r28,28; .set r29,29 11.set r30,30; .set r31,31 12.set f0,0; .set f1,1; .set f2,2; .set f3,3; .set f4,4 13.set f5,5; .set f6,6; .set f7,7; .set f8,8; .set f9,9 14.set f10,10; .set f11,11; .set f12,12; .set f13,13; .set f14,14 15.set f15,15; .set f16,16; .set f17,17; .set f18,18; .set f19,19 16.set f20,20; .set f21,21; .set f22,22; .set f23,23; .set f24,24 17.set f25,25; .set f26,26; .set f27,27; .set f28,28; .set f29,29 18.set f30,30; .set f31,31 19 20#if _CALL_ELF == 2 21#define STACK_PARAMS 96 22#else 23#define STACK_PARAMS 112 24#endif 25 26#if _CALL_ELF == 2 27 .section ".text" 28 .type SharedStub,@function 29 .globl SharedStub 30 # Make the symbol hidden so that the branch from the stub does 31 # not go via a PLT. This is not only better for performance, 32 # but may be necessary to avoid linker errors since there is 33 # no place to restore the TOC register in a sibling call. 34 .hidden SharedStub 35 .align 2 36SharedStub: 370: addis 2,12,(.TOC.-0b)@ha 38 addi 2,2,(.TOC.-0b)@l 39 .localentry SharedStub,.-SharedStub 40#else 41 .section ".text" 42 .align 2 43 .globl SharedStub 44 # Make the symbol hidden so that the branch from the stub does 45 # not go via a PLT. This is not only better for performance, 46 # but may be necessary to avoid linker errors since there is 47 # no place to restore the TOC register in a sibling call. 48 .hidden SharedStub 49 .section ".opd","aw" 50 .align 3 51 52SharedStub: 53 .quad .SharedStub,.TOC.@tocbase 54 .previous 55 .type SharedStub,@function 56 57.SharedStub: 58#endif 59 mflr r0 60 61 std r4, -56(r1) # Save all GPRS 62 std r5, -48(r1) 63 std r6, -40(r1) 64 std r7, -32(r1) 65 std r8, -24(r1) 66 std r9, -16(r1) 67 std r10, -8(r1) 68 69 stfd f13, -64(r1) # ... and FPRS 70 stfd f12, -72(r1) 71 stfd f11, -80(r1) 72 stfd f10, -88(r1) 73 stfd f9, -96(r1) 74 stfd f8, -104(r1) 75 stfd f7, -112(r1) 76 stfd f6, -120(r1) 77 stfd f5, -128(r1) 78 stfd f4, -136(r1) 79 stfd f3, -144(r1) 80 stfd f2, -152(r1) 81 stfd f1, -160(r1) 82 83 subi r6,r1,56 # r6 --> gprData 84 subi r7,r1,160 # r7 --> fprData 85 addi r5,r1,STACK_PARAMS # r5 --> extra stack args 86 87 std r0, 16(r1) 88 89 stdu r1,-288(r1) 90 # r3 has the 'self' pointer 91 # already 92 93 mr r4,r11 # r4 is methodIndex selector, 94 # passed via r11 in the 95 # nsNSStubBase::StubXX() call 96 97 bl PrepareAndDispatch 98 nop 99 100 ld 1,0(r1) # restore stack 101 ld r0,16(r1) # restore LR 102 mtlr r0 103 blr 104 105#if _CALL_ELF == 2 106 .size SharedStub,.-SharedStub 107#else 108 .size SharedStub,.-.SharedStub 109#endif 110 111 # Magic indicating no need for an executable stack 112 .section .note.GNU-stack, "", @progbits ; .previous 113