зеркало из https://github.com/mozilla/gecko-dev.git
113 строки
3.8 KiB
ArmAsm
113 строки
3.8 KiB
ArmAsm
# This Source Code Form is subject to the terms of the Mozilla Public
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# License, v. 2.0. If a copy of the MPL was not distributed with this
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# file, You can obtain one at http://mozilla.org/MPL/2.0/.
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.set r0,0; .set r1,1; .set RTOC,2; .set r3,3; .set r4,4
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.set r5,5; .set r6,6; .set r7,7; .set r8,8; .set r9,9
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.set r10,10; .set r11,11; .set r12,12; .set r13,13; .set r14,14
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.set r15,15; .set r16,16; .set r17,17; .set r18,18; .set r19,19
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.set r20,20; .set r21,21; .set r22,22; .set r23,23; .set r24,24
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.set r25,25; .set r26,26; .set r27,27; .set r28,28; .set r29,29
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.set r30,30; .set r31,31
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.set f0,0; .set f1,1; .set f2,2; .set f3,3; .set f4,4
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.set f5,5; .set f6,6; .set f7,7; .set f8,8; .set f9,9
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.set f10,10; .set f11,11; .set f12,12; .set f13,13; .set f14,14
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.set f15,15; .set f16,16; .set f17,17; .set f18,18; .set f19,19
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.set f20,20; .set f21,21; .set f22,22; .set f23,23; .set f24,24
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.set f25,25; .set f26,26; .set f27,27; .set f28,28; .set f29,29
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.set f30,30; .set f31,31
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#if _CALL_ELF == 2
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#define STACK_PARAMS 96
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#else
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#define STACK_PARAMS 112
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#endif
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#if _CALL_ELF == 2
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.section ".text"
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.type SharedStub,@function
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.globl SharedStub
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# Make the symbol hidden so that the branch from the stub does
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# not go via a PLT. This is not only better for performance,
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# but may be necessary to avoid linker errors since there is
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# no place to restore the TOC register in a sibling call.
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.hidden SharedStub
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.align 2
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SharedStub:
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0: addis 2,12,(.TOC.-0b)@ha
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addi 2,2,(.TOC.-0b)@l
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.localentry SharedStub,.-SharedStub
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#else
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.section ".text"
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.align 2
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.globl SharedStub
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# Make the symbol hidden so that the branch from the stub does
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# not go via a PLT. This is not only better for performance,
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# but may be necessary to avoid linker errors since there is
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# no place to restore the TOC register in a sibling call.
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.hidden SharedStub
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.section ".opd","aw"
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.align 3
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SharedStub:
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.quad .SharedStub,.TOC.@tocbase
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.previous
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.type SharedStub,@function
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.SharedStub:
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#endif
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mflr r0
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std r4, -56(r1) # Save all GPRS
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std r5, -48(r1)
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std r6, -40(r1)
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std r7, -32(r1)
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std r8, -24(r1)
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std r9, -16(r1)
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std r10, -8(r1)
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stfd f13, -64(r1) # ... and FPRS
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stfd f12, -72(r1)
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stfd f11, -80(r1)
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stfd f10, -88(r1)
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stfd f9, -96(r1)
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stfd f8, -104(r1)
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stfd f7, -112(r1)
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stfd f6, -120(r1)
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stfd f5, -128(r1)
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stfd f4, -136(r1)
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stfd f3, -144(r1)
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stfd f2, -152(r1)
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stfd f1, -160(r1)
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subi r6,r1,56 # r6 --> gprData
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subi r7,r1,160 # r7 --> fprData
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addi r5,r1,STACK_PARAMS # r5 --> extra stack args
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std r0, 16(r1)
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stdu r1,-288(r1)
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# r3 has the 'self' pointer
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# already
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mr r4,r11 # r4 is methodIndex selector,
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# passed via r11 in the
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# nsNSStubBase::StubXX() call
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bl PrepareAndDispatch
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nop
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ld 1,0(r1) # restore stack
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ld r0,16(r1) # restore LR
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mtlr r0
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blr
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#if _CALL_ELF == 2
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.size SharedStub,.-SharedStub
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#else
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.size SharedStub,.-.SharedStub
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#endif
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# Magic indicating no need for an executable stack
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.section .note.GNU-stack, "", @progbits ; .previous
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