view modules/bytearray.tp @ 235:cc1260872322

Fix printing of function/method calls in parser module
author Michael Pavone <pavone@retrodev.com>
date Fri, 03 Jan 2014 19:25:40 -0800
parents 270d31c6c4cd
children fb922651db29
line wrap: on
line source
#{
	includeSystemHeader: "unistd.h"
	includeSystemHeader: "sys/mman.h"

	executable <- :size {
		buf <- #{
			llProperty: bytes withType: uint32_t
			llProperty: buffer withType: (void ptr)
			llMessage: _init withVars: {
				sz <- obj_int32 ptr
			} andCode: :sz {
				bytes <- sz num
				buffer <- sbrk: bytes
				mprotect: buffer bytes (PROT_READ or PROT_WRITE or PROT_EXEC)
				self
			}
			llMessage: set withVars: {
				offset <- obj_int32 ptr
				newval <- obj_uint8 ptr
			} andCode: :offset newval {
				(buffer castTo: (uint8_t ptr)) set: (offset num) (newval num)
				self
			}
			llMessage: get withVars: {
				offset <- obj_int32 ptr
				ret <- obj_uint8 ptr
			} andCode: :offset {
				ret <- make_object: (addr_of: obj_uint8_meta) NULL 0
				ret num!: ((buffer castTo: (uint8_t ptr)) get: (offset num))
				ret
			}
			llMessage: run withVars: {
				fun <- uint64_t funptr
				funret <- obj_uint64 ptr
			} andCode: {
				funret <- make_object: (addr_of: obj_uint64_meta) NULL 0
				fun <- buffer
				funret num!: ( fun: )
				funret
			}

			llMessage: runWithArg withVars: {
				fun <- uint64_t funptr: uint64_t
				funret <- obj_uint64 ptr
				arg <- obj_uint64 ptr
			} andCode: :arg {
				fun <- buffer
				funret <- make_object: (addr_of: obj_uint64_meta) NULL 0
				funret num!: ( fun: (arg num) )
				funret
			}
		}
		buf _init
	}

	executableFromBytes <- :bytes {
		totalSize <- bytes fold: 0 with: :acc el {
			acc + (el length)
		}
		ba <- executable: totalSize
		bytes fold: 0 with: :idx el {
			el flattenTo: ba at: idx
		}
		ba
	}
}