mmap from x86_64 on OSX

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I've tried this over and over and looked at disassembly of a small C version that works fine, but trying to allocate this small block of memory keeps returning '9' ? Can somebody see what I'm doing wrong, thanks.

movl    $0x0, %edi
movl    $0x4000, %esi           ## imm = 0x4000
movl    $0x3, %edx
movl    $0x1002, %ecx           ## imm = 0x1002
movq    $-0x1, %r8
movl    $0x0, %r9d
movl    $0x20000c5, %eax        ## imm = 0x20000C5
syscall

Regards

Chris

asked 38 secs ago

Chris Hinsley

1

mmap from x86_64 on OSX