108 lines
2.3 KiB
ArmAsm
108 lines
2.3 KiB
ArmAsm
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# 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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.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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.cfi_startproc
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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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.cfi_def_cfa_offset 16
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.cfi_offset %rbp, -16
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movq %rsp, %rbp
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.cfi_def_cfa_register %rbp
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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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# 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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# 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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.cfi_def_cfa %rsp, 8
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ret
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.cfi_endproc
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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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.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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