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annotate modules/bytearray.tp @ 263:98147071baf6

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Add support for llMessage definitions in buildMethodTables
author Michael Pavone <pavone@retrodev.com>
date Mon, 14 Jul 2014 09:30:31 -0700
parents fb922651db29
children d1dc2d70bdfd
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1 #{
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2 includeSystemHeader: "unistd.h"
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3 includeSystemHeader: "sys/mman.h"
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4
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5 executable <- :size {
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6 buf <- #{
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7 llProperty: bytes withType: uint32_t
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8 llProperty: buffer withType: (void ptr)
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9 llMessage: _init withVars: {
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10 sz <- obj_int32 ptr
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11 } andCode: :sz {
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12 bytes <- sz num
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13 buffer <- sbrk: bytes
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14 mprotect: buffer bytes (PROT_READ or PROT_WRITE or PROT_EXEC)
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15 self
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16 }
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17 llMessage: set withVars: {
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18 offset <- obj_int32 ptr
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19 newval <- obj_uint8 ptr
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20 } andCode: :offset newval {
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21 (buffer castTo: (uint8_t ptr)) set: (offset num) (newval num)
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22 self
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23 }
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24 llMessage: get withVars: {
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25 offset <- obj_int32 ptr
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26 ret <- obj_uint8 ptr
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27 } andCode: :offset {
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28 ret <- make_object: (addr_of: obj_uint8_meta) NULL 0
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29 ret num!: ((buffer castTo: (uint8_t ptr)) get: (offset num))
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30 ret
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31 }
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32 llMessage: run withVars: {
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33 fun <- uint64_t funptr
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34 funret <- obj_uint64 ptr
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35 } andCode: {
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36 funret <- make_object: (addr_of: obj_uint64_meta) NULL 0
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37 fun <- buffer
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38 funret num!: ( fun: )
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39 funret
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40 }
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41
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42 llMessage: runWithArg withVars: {
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43 fun <- uint64_t funptr: uint64_t
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44 funret <- obj_uint64 ptr
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45 arg <- obj_uint64 ptr
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46 } andCode: :arg {
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47 fun <- buffer
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48 funret <- make_object: (addr_of: obj_uint64_meta) NULL 0
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49 funret num!: ( fun: (arg num) )
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50 funret
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51 }
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52 }
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53 buf _init: size
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54 }
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55
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56 executableFromBytes <- :bytes {
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57 totalSize <- bytes fold: 0 with: :acc el {
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58 acc + (el length)
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59 }
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60 ba <- executable: totalSize
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61 bytes fold: 0 with: :idx el {
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62 el flattenTo: ba at: idx
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63 }
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64 ba
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65 }
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66 }