178 lines
3.9 KiB
ArmAsm
178 lines
3.9 KiB
ArmAsm
# Copyright 2013 The Go Authors. All rights reserved.
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# Use of this source code is governed by a BSD-style
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# license that can be found in the LICENSE file.
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# MakeFunc amd64 assembly code.
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#include "config.h"
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.global reflect.makeFuncStub
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#ifdef __ELF__
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.type reflect.makeFuncStub,@function
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#endif
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reflect.makeFuncStub:
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.LFB1:
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# Store all the parameter registers in a struct that looks
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# like:
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# struct {
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# rax uint64 // 0x0
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# rdi uint64 // 0x8
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# rsi uint64 // 0x10
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# rdx uint64 // 0x18
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# rcx uint64 // 0x20
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# r8 uint64 // 0x28
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# r9 uint64 // 0x30
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# rsp uint64 // 0x38 Pointer to arguments on stack.
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# xmm0 [2]uint64 // 0x40
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# xmm1 [2]uint64 // 0x50
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# xmm2 [2]uint64 // 0x60
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# xmm3 [2]uint64 // 0x70
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# xmm4 [2]uint64 // 0x80
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# xmm5 [2]uint64 // 0x90
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# xmm6 [2]uint64 // 0xa0
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# xmm7 [2]uint64 // 0xb0
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# };
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pushq %rbp
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.LCFI0:
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movq %rsp, %rbp
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.LCFI1:
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subq $0xc0, %rsp # Space for struct on stack.
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movq %rax, 0x0(%rsp)
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movq %rdi, 0x8(%rsp)
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movq %rsi, 0x10(%rsp)
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movq %rdx, 0x18(%rsp)
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movq %rcx, 0x20(%rsp)
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movq %r8, 0x28(%rsp)
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movq %r9, 0x30(%rsp)
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leaq 16(%rbp), %rax
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movq %rax, 0x38(%rsp)
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movdqa %xmm0, 0x40(%rsp)
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movdqa %xmm1, 0x50(%rsp)
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movdqa %xmm2, 0x60(%rsp)
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movdqa %xmm3, 0x70(%rsp)
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movdqa %xmm4, 0x80(%rsp)
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movdqa %xmm5, 0x90(%rsp)
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movdqa %xmm6, 0xa0(%rsp)
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movdqa %xmm7, 0xb0(%rsp)
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/* For MakeFunc functions that call recover. */
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movq 8(%rbp), %rdi
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#ifdef __PIC__
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call __go_makefunc_can_recover@PLT
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#else
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call __go_makefunc_can_recover
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#endif
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# Get function type.
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#ifdef __PIC__
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call __go_get_closure@PLT
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#else
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call __go_get_closure
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#endif
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movq %rax, %rsi
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movq %rsp, %rdi
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#ifdef __PIC__
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call reflect.MakeFuncStubGo@PLT
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#else
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call reflect.MakeFuncStubGo
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#endif
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/* MakeFunc functions can no longer call recover. */
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#ifdef __PIC__
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call __go_makefunc_returning@PLT
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#else
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call __go_makefunc_returning
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#endif
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# The structure will be updated with any return values. Load
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# all possible return registers before returning to the caller.
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movq 0x0(%rsp), %rax
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movq 0x18(%rsp), %rdx
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movq 0x8(%rsp), %rdi
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movq 0x10(%rsp), %rsi
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movdqa 0x40(%rsp), %xmm0
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movdqa 0x50(%rsp), %xmm1
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# long double values are returned on the floating point stack,
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# but we don't worry about that since Go doesn't have a long
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# double type.
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leave
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.LCFI2:
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ret
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.LFE1:
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#ifdef __ELF__
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.size reflect.makeFuncStub, . - reflect.makeFuncStub
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#endif
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#ifdef __ELF__
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#ifdef HAVE_AS_X86_64_UNWIND_SECTION_TYPE
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.section .eh_frame,"a",@unwind
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#else
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.section .eh_frame,"a",@progbits
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#endif
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.Lframe1:
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.long .LECIE1-.LSCIE1 /* Length of Common Information Entry */
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.LSCIE1:
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.long 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 1 /* CIE Code Alignment Factor */
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.sleb128 -8 /* CIE Data Alignment Factor */
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.byte 0x10 /* CIE RA Column */
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.uleb128 1 /* Augmentation size */
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.byte 0x1b /* FDE Encoding (pcrel sdata4) */
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.byte 0xc /* DW_CFA_def_cfa, %rsp offset 8 */
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.uleb128 7
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.uleb128 8
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.byte 0x80+16 /* DW_CFA_offset, %rip offset 1*-8 */
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.uleb128 1
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.align 8
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.LECIE1:
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.LSFDE1:
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.long .LEFDE1-.LASFDE1 /* FDE Length */
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.LASFDE1:
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.long .LASFDE1-.Lframe1 /* FDE CIE offset */
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#if HAVE_AS_X86_PCREL
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.long .LFB1-. /* FDE initial location */
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#else
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.long .LFB1@rel
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#endif
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.long .LFE1-.LFB1 /* FDE address range */
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.uleb128 0x0 /* Augmentation size */
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.byte 0x4 /* DW_CFA_advance_loc4 */
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.long .LCFI0-.LFB1
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.byte 0xe /* DW_CFA_def_cfa_offset */
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.uleb128 16
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.byte 0x86 /* DW_CFA_offset, column 0x6 */
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.uleb128 2
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.byte 0x4 /* DW_CFA_advance_loc4 */
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.long .LCFI1-.LCFI0
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.byte 0xd /* DW_CFA_def_cfa_register */
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.uleb128 6
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.byte 0x2 /* DW_CFA_advance_loc1 */
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.byte .LCFI2-.LCFI1
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.byte 0xc /* DW_CFA_def_cfa */
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.uleb128 7
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.uleb128 8
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.align 8
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.LEFDE1:
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#endif /* __ELF__ */
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#if defined(__ELF__) && defined(__linux__)
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.section .note.GNU-stack,"",@progbits
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.section .note.GNU-split-stack,"",@progbits
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.section .note.GNU-no-split-stack,"",@progbits
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#endif
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