зеркало из https://github.com/mozilla/gecko-dev.git
130 строки
3.6 KiB
ArmAsm
130 строки
3.6 KiB
ArmAsm
#
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# -*- Mode: C; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*-
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#
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# 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 sp,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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.set BO_IF,12
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.set CR0_EQ,2
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.rename H.10.NO_SYMBOL{PR},""
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.rename H.18.NS_InvokeByIndex{TC},"NS_InvokeByIndex"
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# .text section
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.csect H.10.NO_SYMBOL{PR}
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.globl .NS_InvokeByIndex
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.globl NS_InvokeByIndex{DS}
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.extern .invoke_copy_to_stack
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.extern ._ptrgl{PR}
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#
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# NS_InvokeByIndex(nsISupports* that, uint32_t methodIndex,
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# uint32_t paramCount, nsXPTCVariant* params)
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#
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.NS_InvokeByIndex:
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mflr r0
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stw r31,-4(sp)
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#
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# save off the incoming values in the caller's parameter area
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#
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stw r3,24(sp) # that
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stw r4,28(sp) # methodIndex
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stw r5,32(sp) # paramCount
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stw r6,36(sp) # params
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stw r0,8(sp)
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stwu sp,-136(sp) # = 24 for linkage area, 8 * 13 for fprData area, 8 for saved registers
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# prepare args for 'invoke_copy_to_stack' call
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#
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lwz r4,168(sp) # paramCount
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lwz r5,172(sp) # params
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mr r6,sp # fprData
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slwi r3,r4,3 # number of bytes of stack required
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# at most 8*paramCount
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addi r3,r3,28 # linkage area
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mr r31,sp # save original stack top
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subfc sp,r3,sp # bump the stack
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addi r3,sp,28 # parameter pointer excludes linkage area size + 'this'
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bl .invoke_copy_to_stack
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nop
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lfd f1,0(r31) # Restore floating point registers
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lfd f2,8(r31)
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lfd f3,16(r31)
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lfd f4,24(r31)
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lfd f5,32(r31)
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lfd f6,40(r31)
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lfd f7,48(r31)
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lfd f8,56(r31)
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lfd f9,64(r31)
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lfd f10,72(r31)
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lfd f11,80(r31)
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lfd f12,88(r31)
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lfd f13,96(r31)
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lwz r3,160(r31) # that
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lwz r4,0(r3) # get vTable from 'that'
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lwz r5,164(r31) # methodIndex
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slwi r5,r5,3 # methodIndex * 8
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addi r5,r5,8 # step over junk at start of vTable !
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lwzx r11,r5,r4 # get function pointer
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addi r5,r5,4 # We need to manually adjust the 'that' pointer, this is CFRONT based
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lwzx r5,r4,r5 # offset = r4(vtable) + r5(methodIndex offset) - 4
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add r3,r5,r3 # adjust 'that' r3 = r3 + r5
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lwz r4,28(sp)
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lwz r5,32(sp)
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lwz r6,36(sp)
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lwz r7,40(sp)
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lwz r8,44(sp)
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lwz r9,48(sp)
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lwz r10,52(sp)
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bl ._ptrgl{PR}
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nop
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mr sp,r31
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lwz r0,144(sp)
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addi sp,sp,136
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mtlr r0
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lwz r31,-4(sp)
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blr
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# .data section
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.toc # 0x00000038
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T.18.NS_InvokeByIndex:
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.tc H.18.NS_InvokeByIndex{TC},NS_InvokeByIndex{DS}
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.csect NS_InvokeByIndex{DS}
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.long .NS_InvokeByIndex # "\0\0\0\0"
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.long TOC{TC0} # "\0\0\0008"
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.long 0x00000000 # "\0\0\0\0"
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# End csect NS_InvokeByIndex{DS}
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# .bss section
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