\r
HELP: disassemble\r
{ $values { "obj" "a word or a pair of addresses" } }\r
-{ $description "Disassembles either a compiled word definition or an arbitrary memory range (in the case " { $snippet "obj" } " is a pair of integers) by attaching " { $snippet "gdb" } " to the Factor VM and capturing the output." }\r
-{ $notes "In some cases the Factor compiler emits data inline with code, which can confuse " { $snippet "gdb" } ". This occurs in words which call " { $link dispatch } ", where the jump table addresses are compiled inline. Also on the ARM architecture, various pointers are often compiled inline, and the preceeding instruction jumps over the inline pinter." } ;\r
+{ $description "Disassembles either a compiled word definition or an arbitrary memory range (in the case " { $snippet "obj" } " is a pair of integers)." }\r
+{ $notes "In some cases the Factor compiler emits data inline with code, which can confuse the disassembler. This occurs in words which call " { $link dispatch } ", where the jump table addresses are compiled inline." } ;\r
\r
ARTICLE: "tools.disassembler" "Disassembling words"\r
-"The " { $vocab-link "tools.disassembler" } " vocabulary integrates Factor with the GNU debugger (" { $snippet "gdb" } ") for viewing the assembly code generated by the compiler. It can be used on both Unix and Windows as long as a working copy of " { $snippet "gdb" } " is installed and available in the " { $snippet "PATH" } "."\r
+"The " { $vocab-link "tools.disassembler" } " vocabulary provides support for disassembling compiled word definitions. It uses the " { $snippet "libudis86" } " library on x86-32 and x86-64, and " { $snippet "gdb" } " on PowerPC."\r
{ $subsection disassemble } ;\r
\r
ABOUT: "tools.disassembler"\r
-! Copyright (C) 2008 Slava Pestov, Jorge Acereda Macia.
+! Copyright (C) 2008 Slava Pestov.
! See http://factorcode.org/license.txt for BSD license.
-USING: io.files io words alien kernel math.parser alien.syntax
-io.launcher system assocs arrays sequences namespaces make
-qualified system math compiler.codegen.fixup
-io.encodings.ascii accessors generic tr ;
+USING: tr arrays sequences io words generic system combinators
+vocabs.loader ;
IN: tools.disassembler
-: in-file ( -- path ) "gdb-in.txt" temp-file ;
+GENERIC: disassemble ( obj -- )
-: out-file ( -- path ) "gdb-out.txt" temp-file ;
+SYMBOL: disassembler-backend
-GENERIC: make-disassemble-cmd ( obj -- )
+HOOK: disassemble* disassembler-backend ( from to -- lines )
-M: word make-disassemble-cmd
- word-xt code-format - 2array make-disassemble-cmd ;
-
-M: pair make-disassemble-cmd
- in-file ascii [
- "attach " write
- current-process-handle number>string print
- "disassemble " write
- [ number>string write bl ] each
- ] with-file-writer ;
-
-M: method-spec make-disassemble-cmd
- first2 method make-disassemble-cmd ;
+TR: tabs>spaces "\t" "\s" ;
-: gdb-binary ( -- string ) "gdb" ;
+M: pair disassemble first2 disassemble* [ tabs>spaces print ] each ;
-: run-gdb ( -- lines )
- <process>
- +closed+ >>stdin
- out-file >>stdout
- [ gdb-binary , "-x" , in-file , "-batch" , ] { } make >>command
- try-process
- out-file ascii file-lines ;
+M: word disassemble word-xt 2array disassemble ;
-TR: tabs>spaces "\t" "\s" ;
+M: method-spec disassemble first2 method disassemble ;
-: disassemble ( obj -- )
- make-disassemble-cmd run-gdb
- [ tabs>spaces ] map [ print ] each ;
+cpu {
+ { x86.32 [ "tools.disassembler.udis" ] }
+ { x86.64 [ "tools.disassembler.udis" ] }
+ { ppc [ "tools.disassembler.gdb" ] }
+} case require
--- /dev/null
+! Copyright (C) 2008 Slava Pestov, Jorge Acereda Macia.
+! See http://factorcode.org/license.txt for BSD license.
+USING: io.files io words alien kernel math.parser alien.syntax
+io.launcher system assocs arrays sequences namespaces make
+qualified system math io.encodings.ascii accessors
+tools.disassembler ;
+IN: tools.disassembler.gdb
+
+SINGLETON: gdb-disassembler
+
+: in-file ( -- path ) "gdb-in.txt" temp-file ;
+
+: out-file ( -- path ) "gdb-out.txt" temp-file ;
+
+: make-disassemble-cmd ( from to -- )
+ in-file ascii [
+ "attach " write
+ current-process-handle number>string print
+ "disassemble " write
+ [ number>string write bl ] bi@
+ ] with-file-writer ;
+
+: gdb-binary ( -- string ) "gdb" ;
+
+: run-gdb ( -- lines )
+ <process>
+ +closed+ >>stdin
+ out-file >>stdout
+ [ gdb-binary , "-x" , in-file , "-batch" , ] { } make >>command
+ try-process
+ out-file ascii file-lines ;
+
+M: gdb-disassembler disassemble*
+ make-disassemble-cmd run-gdb ;
+
+gdb-disassembler disassembler-backend set-global
--- /dev/null
+unportable
--- /dev/null
+! Copyright (C) 2008 Slava Pestov, Jorge Acereda Macia.
+! See http://factorcode.org/license.txt for BSD license.
+USING: tools.disassembler namespaces combinators
+alien alien.syntax alien.c-types lexer parser kernel
+sequences layouts math math.parser system make fry arrays ;
+IN: tools.disassembler.udis
+
+<< : & scan "c-library" get load-library dlsym parsed ; parsing >>
+
+<<
+"libudis86" {
+ { [ os macosx? ] [ "libudis86.0.dylib" ] }
+ { [ os unix? ] [ "libudis86.so.0" ] }
+ { [ os winnt? ] [ "libudis86.dll" ] }
+} cond "cdecl" add-library
+>>
+
+LIBRARY: libudis86
+
+TYPEDEF: char[592] ud
+
+FUNCTION: void ud_translate_intel ( ud* u ) ;
+FUNCTION: void ud_translate_att ( ud* u ) ;
+
+: UD_SYN_INTEL & ud_translate_intel ; inline
+: UD_SYN_ATT & ud_translate_att ; inline
+: UD_EOI -1 ; inline
+: UD_INP_CACHE_SZ 32 ; inline
+: UD_VENDOR_AMD 0 ; inline
+: UD_VENDOR_INTEL 1 ; inline
+
+FUNCTION: void ud_init ( ud* u ) ;
+FUNCTION: void ud_set_mode ( ud* u, uint8_t mode ) ;
+FUNCTION: void ud_set_pc ( ud* u, ulonglong pc ) ;
+FUNCTION: void ud_set_input_buffer ( ud* u, uint8_t* offset, size_t size ) ;
+FUNCTION: void ud_set_vendor ( ud* u, uint vendor ) ;
+FUNCTION: void ud_set_syntax ( ud* u, void* syntax ) ;
+FUNCTION: void ud_input_skip ( ud* u, size_t size ) ;
+FUNCTION: int ud_input_end ( ud* u ) ;
+FUNCTION: uint ud_decode ( ud* u ) ;
+FUNCTION: uint ud_disassemble ( ud* u ) ;
+FUNCTION: char* ud_insn_asm ( ud* u ) ;
+FUNCTION: void* ud_insn_ptr ( ud* u ) ;
+FUNCTION: ulonglong ud_insn_off ( ud* u ) ;
+FUNCTION: char* ud_insn_hex ( ud* u ) ;
+FUNCTION: uint ud_insn_len ( ud* u ) ;
+FUNCTION: char* ud_lookup_mnemonic ( int c ) ;
+
+: <ud> ( -- ud )
+ "ud" <c-object>
+ dup ud_init
+ dup cell-bits ud_set_mode
+ dup UD_SYN_INTEL ud_set_syntax ;
+
+SINGLETON: udis-disassembler
+
+: buf/len ( from to -- buf len ) [ drop <alien> ] [ swap - ] 2bi ;
+
+: format-disassembly ( lines -- lines' )
+ dup [ second length ] map supremum
+ '[
+ [
+ [ first >hex cell 2 * CHAR: 0 pad-left % ": " % ]
+ [ second _ CHAR: \s pad-right % " " % ]
+ [ third % ]
+ tri
+ ] "" make
+ ] map ;
+
+: (disassemble) ( ud -- lines )
+ [
+ dup '[
+ _ ud_disassemble 0 =
+ [ f ] [
+ _
+ [ ud_insn_off ]
+ [ ud_insn_hex ]
+ [ ud_insn_asm ]
+ tri 3array , t
+ ] if
+ ] loop
+ ] { } make ;
+
+M: udis-disassembler disassemble* ( from to -- buffer )
+ [ <ud> ] 2dip {
+ [ drop ud_set_pc ]
+ [ buf/len ud_set_input_buffer ]
+ [ 2drop (disassemble) format-disassembly ]
+ } 3cleave ;
+
+udis-disassembler disassembler-backend set-global
projects / factor.git / commitdiff