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.file "linux64_closure.S"
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FFI_HIDDEN (ffi_closure_LINUX64)
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FFI_HIDDEN (.ffi_closure_LINUX64)
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.globl ffi_closure_LINUX64, .ffi_closure_LINUX64
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.quad .ffi_closure_LINUX64,.TOC.@tocbase,0
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.size ffi_closure_LINUX64,24
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.type .ffi_closure_LINUX64,@function
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# save general regs into parm save area
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# mandatory 48 bytes special reg save area + 64 bytes parm save area
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# + 16 bytes retval area + 13*8 bytes fpr save area + round to 16
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# next save fpr 1 to fpr 13
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stfd %f1, 128+(0*8)(%r1)
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stfd %f2, 128+(1*8)(%r1)
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stfd %f3, 128+(2*8)(%r1)
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stfd %f4, 128+(3*8)(%r1)
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stfd %f5, 128+(4*8)(%r1)
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stfd %f6, 128+(5*8)(%r1)
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stfd %f7, 128+(6*8)(%r1)
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stfd %f8, 128+(7*8)(%r1)
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stfd %f9, 128+(8*8)(%r1)
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stfd %f10, 128+(9*8)(%r1)
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stfd %f11, 128+(10*8)(%r1)
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stfd %f12, 128+(11*8)(%r1)
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stfd %f13, 128+(12*8)(%r1)
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# set up registers for the routine that actually does the work
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# get the context pointer from the trampoline
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# now load up the pointer to the result storage
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# now load up the pointer to the parameter save area
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# in the previous frame
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addi %r5, %r1, 240 + 48
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# now load up the pointer to the saved fpr registers */
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bl .ffi_closure_helper_LINUX64
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# now r3 contains the return type
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# so use it to look up in a table
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# so we know how to deal with each type
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# look up the proper starting point in table
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# by using return type as offset
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mflr %r4 # move address of .Lret to r4
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sldi %r3, %r3, 4 # now multiply return type by 16
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addi %r4, %r4, .Lret_type0 - .Lret
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add %r3, %r3, %r4 # add contents of table to table address
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# Each of the ret_typeX code fragments has to be exactly 16 bytes long
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# (4 instructions). For cache effectiveness we align to a 16 byte boundary
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# case FFI_TYPE_FLOAT
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# case FFI_TYPE_DOUBLE
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# case FFI_TYPE_LONGDOUBLE
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# case FFI_TYPE_UINT8
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# case FFI_TYPE_SINT8
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# case FFI_TYPE_UINT16
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# case FFI_TYPE_SINT16
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# case FFI_TYPE_UINT32
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# case FFI_TYPE_SINT32
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# case FFI_TYPE_UINT64
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# case FFI_TYPE_SINT64
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# case FFI_TYPE_STRUCT
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# case FFI_TYPE_POINTER
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.byte 0,12,0,1,128,0,0,0
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.size .ffi_closure_LINUX64,.-.ffi_closure_LINUX64
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.section .eh_frame,EH_FRAME_FLAGS,@progbits
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.4byte .LECIE1-.LSCIE1 # Length of Common Information Entry
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.4byte 0x0 # CIE Identifier Tag
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.byte 0x1 # CIE Version
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.ascii "zR\0" # CIE Augmentation
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.uleb128 0x1 # CIE Code Alignment Factor
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.sleb128 -8 # CIE Data Alignment Factor
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.byte 0x41 # CIE RA Column
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.uleb128 0x1 # Augmentation size
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.byte 0x14 # FDE Encoding (pcrel udata8)
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.byte 0xc # DW_CFA_def_cfa
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.4byte .LEFDE1-.LASFDE1 # FDE Length
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.4byte .LASFDE1-.Lframe1 # FDE CIE offset
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.8byte .LFB1-. # FDE initial location
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.8byte .LFE1-.LFB1 # FDE address range
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.uleb128 0x0 # Augmentation size
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.byte 0x2 # DW_CFA_advance_loc1
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.byte 0xe # DW_CFA_def_cfa_offset
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.byte 0x11 # DW_CFA_offset_extended_sf
added
removed
libffi/src/powerpc/linux64_closure.S
