33 lines
446 B
ArmAsm
33 lines
446 B
ArmAsm
extern malloc
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global ft_strdup
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extern ft_strcpy
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extern ft_strlen
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extern __errno_location
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section .text
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ft_strdup:
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test rdi, rdi ; test if arg is NULL
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jz err
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push rdi ;push to use it for the strcpy
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call ft_strlen
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inc rax
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mov rdi, rax
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call malloc wrt ..plt
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test rax, rax
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jz malloc_failed
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mov rdi, rax
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pop rsi
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call ft_strcpy
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ret
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malloc_failed:
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call __errno_location wrt ..plt
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mov dword [rax], 12
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pop rax
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err:
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xor rax, rax
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ret
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