xpcom/reflect/xptcall/src/md/unix/xptcstubs_asm_ppc64_linux.S

Sat, 03 Jan 2015 20:18:00 +0100

author
Michael Schloh von Bennewitz <michael@schloh.com>
date
Sat, 03 Jan 2015 20:18:00 +0100
branch
TOR_BUG_3246
changeset 7
129ffea94266
permissions
-rw-r--r--

Conditionally enable double key logic according to:
private browsing mode or privacy.thirdparty.isolate preference and
implement in GetCookieStringCommon and FindCookie where it counts...
With some reservations of how to convince FindCookie users to test
condition and pass a nullptr when disabling double key logic.

     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/.
     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
    20 #if _CALL_ELF == 2
    21 #define STACK_PARAMS   96
    22 #else
    23 #define STACK_PARAMS   112
    24 #endif
    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
    36 SharedStub:
    37 0:      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
    52 SharedStub:
    53         .quad   .SharedStub,.TOC.@tocbase
    54         .previous
    55         .type   SharedStub,@function
    57 .SharedStub:
    58 #endif
    59         mflr    r0
    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)
    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)
    83         subi    r6,r1,56                        # r6 --> gprData
    84         subi    r7,r1,160                       # r7 --> fprData
    85         addi    r5,r1,STACK_PARAMS              # r5 --> extra stack args
    87         std     r0, 16(r1)
    89         stdu    r1,-288(r1)
    90                                                 # r3 has the 'self' pointer
    91                                                 # already
    93         mr      r4,r11                          # r4 is methodIndex selector,
    94                                                 # passed via r11 in the
    95                                                 # nsNSStubBase::StubXX() call
    97         bl      PrepareAndDispatch
    98         nop
   100         ld      1,0(r1)                         # restore stack
   101         ld      r0,16(r1)                       # restore LR
   102         mtlr    r0
   103         blr
   105 #if _CALL_ELF == 2
   106         .size   SharedStub,.-SharedStub
   107 #else
   108         .size   SharedStub,.-.SharedStub
   109 #endif
   111         # Magic indicating no need for an executable stack
   112         .section .note.GNU-stack, "", @progbits ; .previous

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