1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/xpcom/reflect/xptcall/src/md/unix/xptcstubs_asm_ppc64_linux.S Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,112 @@
1.4 +# This Source Code Form is subject to the terms of the Mozilla Public
1.5 +# License, v. 2.0. If a copy of the MPL was not distributed with this
1.6 +# file, You can obtain one at http://mozilla.org/MPL/2.0/.
1.7 +
1.8 +.set r0,0; .set r1,1; .set RTOC,2; .set r3,3; .set r4,4
1.9 +.set r5,5; .set r6,6; .set r7,7; .set r8,8; .set r9,9
1.10 +.set r10,10; .set r11,11; .set r12,12; .set r13,13; .set r14,14
1.11 +.set r15,15; .set r16,16; .set r17,17; .set r18,18; .set r19,19
1.12 +.set r20,20; .set r21,21; .set r22,22; .set r23,23; .set r24,24
1.13 +.set r25,25; .set r26,26; .set r27,27; .set r28,28; .set r29,29
1.14 +.set r30,30; .set r31,31
1.15 +.set f0,0; .set f1,1; .set f2,2; .set f3,3; .set f4,4
1.16 +.set f5,5; .set f6,6; .set f7,7; .set f8,8; .set f9,9
1.17 +.set f10,10; .set f11,11; .set f12,12; .set f13,13; .set f14,14
1.18 +.set f15,15; .set f16,16; .set f17,17; .set f18,18; .set f19,19
1.19 +.set f20,20; .set f21,21; .set f22,22; .set f23,23; .set f24,24
1.20 +.set f25,25; .set f26,26; .set f27,27; .set f28,28; .set f29,29
1.21 +.set f30,30; .set f31,31
1.22 +
1.23 +#if _CALL_ELF == 2
1.24 +#define STACK_PARAMS 96
1.25 +#else
1.26 +#define STACK_PARAMS 112
1.27 +#endif
1.28 +
1.29 +#if _CALL_ELF == 2
1.30 + .section ".text"
1.31 + .type SharedStub,@function
1.32 + .globl SharedStub
1.33 + # Make the symbol hidden so that the branch from the stub does
1.34 + # not go via a PLT. This is not only better for performance,
1.35 + # but may be necessary to avoid linker errors since there is
1.36 + # no place to restore the TOC register in a sibling call.
1.37 + .hidden SharedStub
1.38 + .align 2
1.39 +SharedStub:
1.40 +0: addis 2,12,(.TOC.-0b)@ha
1.41 + addi 2,2,(.TOC.-0b)@l
1.42 + .localentry SharedStub,.-SharedStub
1.43 +#else
1.44 + .section ".text"
1.45 + .align 2
1.46 + .globl SharedStub
1.47 + # Make the symbol hidden so that the branch from the stub does
1.48 + # not go via a PLT. This is not only better for performance,
1.49 + # but may be necessary to avoid linker errors since there is
1.50 + # no place to restore the TOC register in a sibling call.
1.51 + .hidden SharedStub
1.52 + .section ".opd","aw"
1.53 + .align 3
1.54 +
1.55 +SharedStub:
1.56 + .quad .SharedStub,.TOC.@tocbase
1.57 + .previous
1.58 + .type SharedStub,@function
1.59 +
1.60 +.SharedStub:
1.61 +#endif
1.62 + mflr r0
1.63 +
1.64 + std r4, -56(r1) # Save all GPRS
1.65 + std r5, -48(r1)
1.66 + std r6, -40(r1)
1.67 + std r7, -32(r1)
1.68 + std r8, -24(r1)
1.69 + std r9, -16(r1)
1.70 + std r10, -8(r1)
1.71 +
1.72 + stfd f13, -64(r1) # ... and FPRS
1.73 + stfd f12, -72(r1)
1.74 + stfd f11, -80(r1)
1.75 + stfd f10, -88(r1)
1.76 + stfd f9, -96(r1)
1.77 + stfd f8, -104(r1)
1.78 + stfd f7, -112(r1)
1.79 + stfd f6, -120(r1)
1.80 + stfd f5, -128(r1)
1.81 + stfd f4, -136(r1)
1.82 + stfd f3, -144(r1)
1.83 + stfd f2, -152(r1)
1.84 + stfd f1, -160(r1)
1.85 +
1.86 + subi r6,r1,56 # r6 --> gprData
1.87 + subi r7,r1,160 # r7 --> fprData
1.88 + addi r5,r1,STACK_PARAMS # r5 --> extra stack args
1.89 +
1.90 + std r0, 16(r1)
1.91 +
1.92 + stdu r1,-288(r1)
1.93 + # r3 has the 'self' pointer
1.94 + # already
1.95 +
1.96 + mr r4,r11 # r4 is methodIndex selector,
1.97 + # passed via r11 in the
1.98 + # nsNSStubBase::StubXX() call
1.99 +
1.100 + bl PrepareAndDispatch
1.101 + nop
1.102 +
1.103 + ld 1,0(r1) # restore stack
1.104 + ld r0,16(r1) # restore LR
1.105 + mtlr r0
1.106 + blr
1.107 +
1.108 +#if _CALL_ELF == 2
1.109 + .size SharedStub,.-SharedStub
1.110 +#else
1.111 + .size SharedStub,.-.SharedStub
1.112 +#endif
1.113 +
1.114 + # Magic indicating no need for an executable stack
1.115 + .section .note.GNU-stack, "", @progbits ; .previous
