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diff --git a/binutils/doc/objdump.1 b/binutils/doc/objdump.1 new file mode 100644 index 0000000..1c66a05 --- /dev/null +++ b/binutils/doc/objdump.1 @@ -0,0 +1,997 @@ +.\" Automatically generated by Pod::Man 2.27 (Pod::Simple 3.28) +.\" +.\" Standard preamble: +.\" ======================================================================== +.de Sp \" Vertical space (when we can't use .PP) +.if t .sp .5v +.if n .sp +.. +.de Vb \" Begin verbatim text +.ft CW +.nf +.ne \\$1 +.. +.de Ve \" End verbatim text +.ft R +.fi +.. +.\" Set up some character translations and predefined strings. \*(-- will +.\" give an unbreakable dash, \*(PI will give pi, \*(L" will give a left +.\" double quote, and \*(R" will give a right double quote. \*(C+ will +.\" give a nicer C++. Capital omega is used to do unbreakable dashes and +.\" therefore won't be available. \*(C` and \*(C' expand to `' in nroff, +.\" nothing in troff, for use with C<>. +.tr \(*W- +.ds C+ C\v'-.1v'\h'-1p'\s-2+\h'-1p'+\s0\v'.1v'\h'-1p' +.ie n \{\ +. ds -- \(*W- +. ds PI pi +. if (\n(.H=4u)&(1m=24u) .ds -- \(*W\h'-12u'\(*W\h'-12u'-\" diablo 10 pitch +. if (\n(.H=4u)&(1m=20u) .ds -- \(*W\h'-12u'\(*W\h'-8u'-\" diablo 12 pitch +. ds L" "" +. ds R" "" +. ds C` "" +. ds C' "" +'br\} +.el\{\ +. ds -- \|\(em\| +. ds PI \(*p +. ds L" `` +. ds R" '' +. ds C` +. ds C' +'br\} +.\" +.\" Escape single quotes in literal strings from groff's Unicode transform. +.ie \n(.g .ds Aq \(aq +.el .ds Aq ' +.\" +.\" If the F register is turned on, we'll generate index entries on stderr for +.\" titles (.TH), headers (.SH), subsections (.SS), items (.Ip), and index +.\" entries marked with X<> in POD. Of course, you'll have to process the +.\" output yourself in some meaningful fashion. +.\" +.\" Avoid warning from groff about undefined register 'F'. +.de IX +.. +.nr rF 0 +.if \n(.g .if rF .nr rF 1 +.if (\n(rF:(\n(.g==0)) \{ +. if \nF \{ +. de IX +. tm Index:\\$1\t\\n%\t"\\$2" +.. +. if !\nF==2 \{ +. nr % 0 +. nr F 2 +. \} +. \} +.\} +.rr rF +.\" +.\" Accent mark definitions (@(#)ms.acc 1.5 88/02/08 SMI; from UCB 4.2). +.\" Fear. Run. Save yourself. No user-serviceable parts. +. \" fudge factors for nroff and troff +.if n \{\ +. ds #H 0 +. ds #V .8m +. ds #F .3m +. ds #[ \f1 +. ds #] \fP +.\} +.if t \{\ +. ds #H ((1u-(\\\\n(.fu%2u))*.13m) +. ds #V .6m +. ds #F 0 +. ds #[ \& +. ds #] \& +.\} +. \" simple accents for nroff and troff +.if n \{\ +. ds ' \& +. ds ` \& +. ds ^ \& +. ds , \& +. ds ~ ~ +. ds / +.\} +.if t \{\ +. ds ' \\k:\h'-(\\n(.wu*8/10-\*(#H)'\'\h"|\\n:u" +. ds ` \\k:\h'-(\\n(.wu*8/10-\*(#H)'\`\h'|\\n:u' +. ds ^ \\k:\h'-(\\n(.wu*10/11-\*(#H)'^\h'|\\n:u' +. ds , \\k:\h'-(\\n(.wu*8/10)',\h'|\\n:u' +. ds ~ \\k:\h'-(\\n(.wu-\*(#H-.1m)'~\h'|\\n:u' +. ds / \\k:\h'-(\\n(.wu*8/10-\*(#H)'\z\(sl\h'|\\n:u' +.\} +. \" troff and (daisy-wheel) nroff accents +.ds : \\k:\h'-(\\n(.wu*8/10-\*(#H+.1m+\*(#F)'\v'-\*(#V'\z.\h'.2m+\*(#F'.\h'|\\n:u'\v'\*(#V' +.ds 8 \h'\*(#H'\(*b\h'-\*(#H' +.ds o \\k:\h'-(\\n(.wu+\w'\(de'u-\*(#H)/2u'\v'-.3n'\*(#[\z\(de\v'.3n'\h'|\\n:u'\*(#] +.ds d- \h'\*(#H'\(pd\h'-\w'~'u'\v'-.25m'\f2\(hy\fP\v'.25m'\h'-\*(#H' +.ds D- D\\k:\h'-\w'D'u'\v'-.11m'\z\(hy\v'.11m'\h'|\\n:u' +.ds th \*(#[\v'.3m'\s+1I\s-1\v'-.3m'\h'-(\w'I'u*2/3)'\s-1o\s+1\*(#] +.ds Th \*(#[\s+2I\s-2\h'-\w'I'u*3/5'\v'-.3m'o\v'.3m'\*(#] +.ds ae a\h'-(\w'a'u*4/10)'e +.ds Ae A\h'-(\w'A'u*4/10)'E +. \" corrections for vroff +.if v .ds ~ \\k:\h'-(\\n(.wu*9/10-\*(#H)'\s-2\u~\d\s+2\h'|\\n:u' +.if v .ds ^ \\k:\h'-(\\n(.wu*10/11-\*(#H)'\v'-.4m'^\v'.4m'\h'|\\n:u' +. \" for low resolution devices (crt and lpr) +.if \n(.H>23 .if \n(.V>19 \ +\{\ +. ds : e +. ds 8 ss +. ds o a +. ds d- d\h'-1'\(ga +. ds D- D\h'-1'\(hy +. ds th \o'bp' +. ds Th \o'LP' +. ds ae ae +. ds Ae AE +.\} +.rm #[ #] #H #V #F C +.\" ======================================================================== +.\" +.IX Title "OBJDUMP 1" +.TH OBJDUMP 1 "2017-03-02" "binutils-2.28" "GNU Development Tools" +.\" For nroff, turn off justification. Always turn off hyphenation; it makes +.\" way too many mistakes in technical documents. +.if n .ad l +.nh +.SH "NAME" +objdump \- display information from object files. +.SH "SYNOPSIS" +.IX Header "SYNOPSIS" +objdump [\fB\-a\fR|\fB\-\-archive\-headers\fR] + [\fB\-b\fR \fIbfdname\fR|\fB\-\-target=\fR\fIbfdname\fR] + [\fB\-C\fR|\fB\-\-demangle\fR[=\fIstyle\fR] ] + [\fB\-d\fR|\fB\-\-disassemble\fR] + [\fB\-D\fR|\fB\-\-disassemble\-all\fR] + [\fB\-z\fR|\fB\-\-disassemble\-zeroes\fR] + [\fB\-EB\fR|\fB\-EL\fR|\fB\-\-endian=\fR{big | little }] + [\fB\-f\fR|\fB\-\-file\-headers\fR] + [\fB\-F\fR|\fB\-\-file\-offsets\fR] + [\fB\-\-file\-start\-context\fR] + [\fB\-g\fR|\fB\-\-debugging\fR] + [\fB\-e\fR|\fB\-\-debugging\-tags\fR] + [\fB\-h\fR|\fB\-\-section\-headers\fR|\fB\-\-headers\fR] + [\fB\-i\fR|\fB\-\-info\fR] + [\fB\-j\fR \fIsection\fR|\fB\-\-section=\fR\fIsection\fR] + [\fB\-l\fR|\fB\-\-line\-numbers\fR] + [\fB\-S\fR|\fB\-\-source\fR] + [\fB\-m\fR \fImachine\fR|\fB\-\-architecture=\fR\fImachine\fR] + [\fB\-M\fR \fIoptions\fR|\fB\-\-disassembler\-options=\fR\fIoptions\fR] + [\fB\-p\fR|\fB\-\-private\-headers\fR] + [\fB\-P\fR \fIoptions\fR|\fB\-\-private=\fR\fIoptions\fR] + [\fB\-r\fR|\fB\-\-reloc\fR] + [\fB\-R\fR|\fB\-\-dynamic\-reloc\fR] + [\fB\-s\fR|\fB\-\-full\-contents\fR] + [\fB\-W[lLiaprmfFsoRt]\fR| + \fB\-\-dwarf\fR[=rawline,=decodedline,=info,=abbrev,=pubnames] + [=aranges,=macro,=frames,=frames\-interp,=str,=loc] + [=Ranges,=pubtypes,=trace_info,=trace_abbrev] + [=trace_aranges,=gdb_index] + [\fB\-G\fR|\fB\-\-stabs\fR] + [\fB\-t\fR|\fB\-\-syms\fR] + [\fB\-T\fR|\fB\-\-dynamic\-syms\fR] + [\fB\-x\fR|\fB\-\-all\-headers\fR] + [\fB\-w\fR|\fB\-\-wide\fR] + [\fB\-\-start\-address=\fR\fIaddress\fR] + [\fB\-\-stop\-address=\fR\fIaddress\fR] + [\fB\-\-prefix\-addresses\fR] + [\fB\-\-[no\-]show\-raw\-insn\fR] + [\fB\-\-adjust\-vma=\fR\fIoffset\fR] + [\fB\-\-dwarf\-depth=\fR\fIn\fR] + [\fB\-\-dwarf\-start=\fR\fIn\fR] + [\fB\-\-special\-syms\fR] + [\fB\-\-prefix=\fR\fIprefix\fR] + [\fB\-\-prefix\-strip=\fR\fIlevel\fR] + [\fB\-\-insn\-width=\fR\fIwidth\fR] + [\fB\-V\fR|\fB\-\-version\fR] + [\fB\-H\fR|\fB\-\-help\fR] + \fIobjfile\fR... +.SH "DESCRIPTION" +.IX Header "DESCRIPTION" +\&\fBobjdump\fR displays information about one or more object files. +The options control what particular information to display. This +information is mostly useful to programmers who are working on the +compilation tools, as opposed to programmers who just want their +program to compile and work. +.PP +\&\fIobjfile\fR... are the object files to be examined. When you +specify archives, \fBobjdump\fR shows information on each of the member +object files. +.SH "OPTIONS" +.IX Header "OPTIONS" +The long and short forms of options, shown here as alternatives, are +equivalent. At least one option from the list +\&\fB\-a,\-d,\-D,\-e,\-f,\-g,\-G,\-h,\-H,\-p,\-P,\-r,\-R,\-s,\-S,\-t,\-T,\-V,\-x\fR must be given. +.IP "\fB\-a\fR" 4 +.IX Item "-a" +.PD 0 +.IP "\fB\-\-archive\-header\fR" 4 +.IX Item "--archive-header" +.PD +If any of the \fIobjfile\fR files are archives, display the archive +header information (in a format similar to \fBls \-l\fR). Besides the +information you could list with \fBar tv\fR, \fBobjdump \-a\fR shows +the object file format of each archive member. +.IP "\fB\-\-adjust\-vma=\fR\fIoffset\fR" 4 +.IX Item "--adjust-vma=offset" +When dumping information, first add \fIoffset\fR to all the section +addresses. This is useful if the section addresses do not correspond to +the symbol table, which can happen when putting sections at particular +addresses when using a format which can not represent section addresses, +such as a.out. +.IP "\fB\-b\fR \fIbfdname\fR" 4 +.IX Item "-b bfdname" +.PD 0 +.IP "\fB\-\-target=\fR\fIbfdname\fR" 4 +.IX Item "--target=bfdname" +.PD +Specify that the object-code format for the object files is +\&\fIbfdname\fR. This option may not be necessary; \fIobjdump\fR can +automatically recognize many formats. +.Sp +For example, +.Sp +.Vb 1 +\& objdump \-b oasys \-m vax \-h fu.o +.Ve +.Sp +displays summary information from the section headers (\fB\-h\fR) of +\&\fIfu.o\fR, which is explicitly identified (\fB\-m\fR) as a \s-1VAX\s0 object +file in the format produced by Oasys compilers. You can list the +formats available with the \fB\-i\fR option. +.IP "\fB\-C\fR" 4 +.IX Item "-C" +.PD 0 +.IP "\fB\-\-demangle[=\fR\fIstyle\fR\fB]\fR" 4 +.IX Item "--demangle[=style]" +.PD +Decode (\fIdemangle\fR) low-level symbol names into user-level names. +Besides removing any initial underscore prepended by the system, this +makes \*(C+ function names readable. Different compilers have different +mangling styles. The optional demangling style argument can be used to +choose an appropriate demangling style for your compiler. +.IP "\fB\-g\fR" 4 +.IX Item "-g" +.PD 0 +.IP "\fB\-\-debugging\fR" 4 +.IX Item "--debugging" +.PD +Display debugging information. This attempts to parse \s-1STABS\s0 and \s-1IEEE\s0 +debugging format information stored in the file and print it out using +a C like syntax. If neither of these formats are found this option +falls back on the \fB\-W\fR option to print any \s-1DWARF\s0 information in +the file. +.IP "\fB\-e\fR" 4 +.IX Item "-e" +.PD 0 +.IP "\fB\-\-debugging\-tags\fR" 4 +.IX Item "--debugging-tags" +.PD +Like \fB\-g\fR, but the information is generated in a format compatible +with ctags tool. +.IP "\fB\-d\fR" 4 +.IX Item "-d" +.PD 0 +.IP "\fB\-\-disassemble\fR" 4 +.IX Item "--disassemble" +.PD +Display the assembler mnemonics for the machine instructions from +\&\fIobjfile\fR. This option only disassembles those sections which are +expected to contain instructions. +.IP "\fB\-D\fR" 4 +.IX Item "-D" +.PD 0 +.IP "\fB\-\-disassemble\-all\fR" 4 +.IX Item "--disassemble-all" +.PD +Like \fB\-d\fR, but disassemble the contents of all sections, not just +those expected to contain instructions. +.Sp +This option also has a subtle effect on the disassembly of +instructions in code sections. When option \fB\-d\fR is in effect +objdump will assume that any symbols present in a code section occur +on the boundary between instructions and it will refuse to disassemble +across such a boundary. When option \fB\-D\fR is in effect however +this assumption is supressed. This means that it is possible for the +output of \fB\-d\fR and \fB\-D\fR to differ if, for example, data +is stored in code sections. +.Sp +If the target is an \s-1ARM\s0 architecture this switch also has the effect +of forcing the disassembler to decode pieces of data found in code +sections as if they were instructions. +.IP "\fB\-\-prefix\-addresses\fR" 4 +.IX Item "--prefix-addresses" +When disassembling, print the complete address on each line. This is +the older disassembly format. +.IP "\fB\-EB\fR" 4 +.IX Item "-EB" +.PD 0 +.IP "\fB\-EL\fR" 4 +.IX Item "-EL" +.IP "\fB\-\-endian={big|little}\fR" 4 +.IX Item "--endian={big|little}" +.PD +Specify the endianness of the object files. This only affects +disassembly. This can be useful when disassembling a file format which +does not describe endianness information, such as S\-records. +.IP "\fB\-f\fR" 4 +.IX Item "-f" +.PD 0 +.IP "\fB\-\-file\-headers\fR" 4 +.IX Item "--file-headers" +.PD +Display summary information from the overall header of +each of the \fIobjfile\fR files. +.IP "\fB\-F\fR" 4 +.IX Item "-F" +.PD 0 +.IP "\fB\-\-file\-offsets\fR" 4 +.IX Item "--file-offsets" +.PD +When disassembling sections, whenever a symbol is displayed, also +display the file offset of the region of data that is about to be +dumped. If zeroes are being skipped, then when disassembly resumes, +tell the user how many zeroes were skipped and the file offset of the +location from where the disassembly resumes. When dumping sections, +display the file offset of the location from where the dump starts. +.IP "\fB\-\-file\-start\-context\fR" 4 +.IX Item "--file-start-context" +Specify that when displaying interlisted source code/disassembly +(assumes \fB\-S\fR) from a file that has not yet been displayed, extend the +context to the start of the file. +.IP "\fB\-h\fR" 4 +.IX Item "-h" +.PD 0 +.IP "\fB\-\-section\-headers\fR" 4 +.IX Item "--section-headers" +.IP "\fB\-\-headers\fR" 4 +.IX Item "--headers" +.PD +Display summary information from the section headers of the +object file. +.Sp +File segments may be relocated to nonstandard addresses, for example by +using the \fB\-Ttext\fR, \fB\-Tdata\fR, or \fB\-Tbss\fR options to +\&\fBld\fR. However, some object file formats, such as a.out, do not +store the starting address of the file segments. In those situations, +although \fBld\fR relocates the sections correctly, using \fBobjdump +\&\-h\fR to list the file section headers cannot show the correct addresses. +Instead, it shows the usual addresses, which are implicit for the +target. +.Sp +Note, in some cases it is possible for a section to have both the +\&\s-1READONLY\s0 and the \s-1NOREAD\s0 attributes set. In such cases the \s-1NOREAD\s0 +attribute takes precedence, but \fBobjdump\fR will report both +since the exact setting of the flag bits might be important. +.IP "\fB\-H\fR" 4 +.IX Item "-H" +.PD 0 +.IP "\fB\-\-help\fR" 4 +.IX Item "--help" +.PD +Print a summary of the options to \fBobjdump\fR and exit. +.IP "\fB\-i\fR" 4 +.IX Item "-i" +.PD 0 +.IP "\fB\-\-info\fR" 4 +.IX Item "--info" +.PD +Display a list showing all architectures and object formats available +for specification with \fB\-b\fR or \fB\-m\fR. +.IP "\fB\-j\fR \fIname\fR" 4 +.IX Item "-j name" +.PD 0 +.IP "\fB\-\-section=\fR\fIname\fR" 4 +.IX Item "--section=name" +.PD +Display information only for section \fIname\fR. +.IP "\fB\-l\fR" 4 +.IX Item "-l" +.PD 0 +.IP "\fB\-\-line\-numbers\fR" 4 +.IX Item "--line-numbers" +.PD +Label the display (using debugging information) with the filename and +source line numbers corresponding to the object code or relocs shown. +Only useful with \fB\-d\fR, \fB\-D\fR, or \fB\-r\fR. +.IP "\fB\-m\fR \fImachine\fR" 4 +.IX Item "-m machine" +.PD 0 +.IP "\fB\-\-architecture=\fR\fImachine\fR" 4 +.IX Item "--architecture=machine" +.PD +Specify the architecture to use when disassembling object files. This +can be useful when disassembling object files which do not describe +architecture information, such as S\-records. You can list the available +architectures with the \fB\-i\fR option. +.Sp +If the target is an \s-1ARM\s0 architecture then this switch has an +additional effect. It restricts the disassembly to only those +instructions supported by the architecture specified by \fImachine\fR. +If it is necessary to use this switch because the input file does not +contain any architecture information, but it is also desired to +disassemble all the instructions use \fB\-marm\fR. +.IP "\fB\-M\fR \fIoptions\fR" 4 +.IX Item "-M options" +.PD 0 +.IP "\fB\-\-disassembler\-options=\fR\fIoptions\fR" 4 +.IX Item "--disassembler-options=options" +.PD +Pass target specific information to the disassembler. Only supported on +some targets. If it is necessary to specify more than one +disassembler option then multiple \fB\-M\fR options can be used or +can be placed together into a comma separated list. +.Sp +For \s-1ARC, \s0\fBdsp\fR controls the printing of \s-1DSP\s0 instructions, +\&\fBspfp\fR selects the printing of \s-1FPX\s0 single precision \s-1FP\s0 +instructions, \fBdpfp\fR selects the printing of \s-1FPX\s0 double +precision \s-1FP\s0 instructions, \fBquarkse_em\fR selects the printing of +special QuarkSE-EM instructions, \fBfpuda\fR selects the printing +of double precision assist instructions, \fBfpus\fR selects the +printing of \s-1FPU\s0 single precision \s-1FP\s0 instructions, while \fBfpud\fR +selects the printing of \s-1FPU\s0 souble precision \s-1FP\s0 instructions. +.Sp +If the target is an \s-1ARM\s0 architecture then this switch can be used to +select which register name set is used during disassembler. Specifying +\&\fB\-M reg-names-std\fR (the default) will select the register names as +used in \s-1ARM\s0's instruction set documentation, but with register 13 called +\&'sp', register 14 called 'lr' and register 15 called 'pc'. Specifying +\&\fB\-M reg-names-apcs\fR will select the name set used by the \s-1ARM\s0 +Procedure Call Standard, whilst specifying \fB\-M reg-names-raw\fR will +just use \fBr\fR followed by the register number. +.Sp +There are also two variants on the \s-1APCS\s0 register naming scheme enabled +by \fB\-M reg-names-atpcs\fR and \fB\-M reg-names-special-atpcs\fR which +use the ARM/Thumb Procedure Call Standard naming conventions. (Either +with the normal register names or the special register names). +.Sp +This option can also be used for \s-1ARM\s0 architectures to force the +disassembler to interpret all instructions as Thumb instructions by +using the switch \fB\-\-disassembler\-options=force\-thumb\fR. This can be +useful when attempting to disassemble thumb code produced by other +compilers. +.Sp +For the x86, some of the options duplicate functions of the \fB\-m\fR +switch, but allow finer grained control. Multiple selections from the +following may be specified as a comma separated string. +.RS 4 +.ie n .IP """x86\-64""" 4 +.el .IP "\f(CWx86\-64\fR" 4 +.IX Item "x86-64" +.PD 0 +.ie n .IP """i386""" 4 +.el .IP "\f(CWi386\fR" 4 +.IX Item "i386" +.ie n .IP """i8086""" 4 +.el .IP "\f(CWi8086\fR" 4 +.IX Item "i8086" +.PD +Select disassembly for the given architecture. +.ie n .IP """intel""" 4 +.el .IP "\f(CWintel\fR" 4 +.IX Item "intel" +.PD 0 +.ie n .IP """att""" 4 +.el .IP "\f(CWatt\fR" 4 +.IX Item "att" +.PD +Select between intel syntax mode and \s-1AT&T\s0 syntax mode. +.ie n .IP """amd64""" 4 +.el .IP "\f(CWamd64\fR" 4 +.IX Item "amd64" +.PD 0 +.ie n .IP """intel64""" 4 +.el .IP "\f(CWintel64\fR" 4 +.IX Item "intel64" +.PD +Select between \s-1AMD64 ISA\s0 and Intel64 \s-1ISA.\s0 +.ie n .IP """intel\-mnemonic""" 4 +.el .IP "\f(CWintel\-mnemonic\fR" 4 +.IX Item "intel-mnemonic" +.PD 0 +.ie n .IP """att\-mnemonic""" 4 +.el .IP "\f(CWatt\-mnemonic\fR" 4 +.IX Item "att-mnemonic" +.PD +Select between intel mnemonic mode and \s-1AT&T\s0 mnemonic mode. +Note: \f(CW\*(C`intel\-mnemonic\*(C'\fR implies \f(CW\*(C`intel\*(C'\fR and +\&\f(CW\*(C`att\-mnemonic\*(C'\fR implies \f(CW\*(C`att\*(C'\fR. +.ie n .IP """addr64""" 4 +.el .IP "\f(CWaddr64\fR" 4 +.IX Item "addr64" +.PD 0 +.ie n .IP """addr32""" 4 +.el .IP "\f(CWaddr32\fR" 4 +.IX Item "addr32" +.ie n .IP """addr16""" 4 +.el .IP "\f(CWaddr16\fR" 4 +.IX Item "addr16" +.ie n .IP """data32""" 4 +.el .IP "\f(CWdata32\fR" 4 +.IX Item "data32" +.ie n .IP """data16""" 4 +.el .IP "\f(CWdata16\fR" 4 +.IX Item "data16" +.PD +Specify the default address size and operand size. These four options +will be overridden if \f(CW\*(C`x86\-64\*(C'\fR, \f(CW\*(C`i386\*(C'\fR or \f(CW\*(C`i8086\*(C'\fR +appear later in the option string. +.ie n .IP """suffix""" 4 +.el .IP "\f(CWsuffix\fR" 4 +.IX Item "suffix" +When in \s-1AT&T\s0 mode, instructs the disassembler to print a mnemonic +suffix even when the suffix could be inferred by the operands. +.RE +.RS 4 +.Sp +For PowerPC, \fBbooke\fR controls the disassembly of BookE +instructions. \fB32\fR and \fB64\fR select PowerPC and +PowerPC64 disassembly, respectively. \fBe300\fR selects +disassembly for the e300 family. \fB440\fR selects disassembly for +the PowerPC 440. \fBppcps\fR selects disassembly for the paired +single instructions of the \s-1PPC750CL.\s0 +.Sp +For \s-1MIPS,\s0 this option controls the printing of instruction mnemonic +names and register names in disassembled instructions. Multiple +selections from the following may be specified as a comma separated +string, and invalid options are ignored: +.ie n .IP """no\-aliases""" 4 +.el .IP "\f(CWno\-aliases\fR" 4 +.IX Item "no-aliases" +Print the 'raw' instruction mnemonic instead of some pseudo +instruction mnemonic. I.e., print 'daddu' or 'or' instead of 'move', +\&'sll' instead of 'nop', etc. +.ie n .IP """msa""" 4 +.el .IP "\f(CWmsa\fR" 4 +.IX Item "msa" +Disassemble \s-1MSA\s0 instructions. +.ie n .IP """virt""" 4 +.el .IP "\f(CWvirt\fR" 4 +.IX Item "virt" +Disassemble the virtualization \s-1ASE\s0 instructions. +.ie n .IP """xpa""" 4 +.el .IP "\f(CWxpa\fR" 4 +.IX Item "xpa" +Disassemble the eXtended Physical Address (\s-1XPA\s0) \s-1ASE\s0 instructions. +.ie n .IP """gpr\-names=\f(CIABI\f(CW""" 4 +.el .IP "\f(CWgpr\-names=\f(CIABI\f(CW\fR" 4 +.IX Item "gpr-names=ABI" +Print \s-1GPR \s0(general-purpose register) names as appropriate +for the specified \s-1ABI. \s0 By default, \s-1GPR\s0 names are selected according to +the \s-1ABI\s0 of the binary being disassembled. +.ie n .IP """fpr\-names=\f(CIABI\f(CW""" 4 +.el .IP "\f(CWfpr\-names=\f(CIABI\f(CW\fR" 4 +.IX Item "fpr-names=ABI" +Print \s-1FPR \s0(floating-point register) names as +appropriate for the specified \s-1ABI. \s0 By default, \s-1FPR\s0 numbers are printed +rather than names. +.ie n .IP """cp0\-names=\f(CIARCH\f(CW""" 4 +.el .IP "\f(CWcp0\-names=\f(CIARCH\f(CW\fR" 4 +.IX Item "cp0-names=ARCH" +Print \s-1CP0 \s0(system control coprocessor; coprocessor 0) register names +as appropriate for the \s-1CPU\s0 or architecture specified by +\&\fI\s-1ARCH\s0\fR. By default, \s-1CP0\s0 register names are selected according to +the architecture and \s-1CPU\s0 of the binary being disassembled. +.ie n .IP """hwr\-names=\f(CIARCH\f(CW""" 4 +.el .IP "\f(CWhwr\-names=\f(CIARCH\f(CW\fR" 4 +.IX Item "hwr-names=ARCH" +Print \s-1HWR \s0(hardware register, used by the \f(CW\*(C`rdhwr\*(C'\fR instruction) names +as appropriate for the \s-1CPU\s0 or architecture specified by +\&\fI\s-1ARCH\s0\fR. By default, \s-1HWR\s0 names are selected according to +the architecture and \s-1CPU\s0 of the binary being disassembled. +.ie n .IP """reg\-names=\f(CIABI\f(CW""" 4 +.el .IP "\f(CWreg\-names=\f(CIABI\f(CW\fR" 4 +.IX Item "reg-names=ABI" +Print \s-1GPR\s0 and \s-1FPR\s0 names as appropriate for the selected \s-1ABI.\s0 +.ie n .IP """reg\-names=\f(CIARCH\f(CW""" 4 +.el .IP "\f(CWreg\-names=\f(CIARCH\f(CW\fR" 4 +.IX Item "reg-names=ARCH" +Print CPU-specific register names (\s-1CP0\s0 register and \s-1HWR\s0 names) +as appropriate for the selected \s-1CPU\s0 or architecture. +.RE +.RS 4 +.Sp +For any of the options listed above, \fI\s-1ABI\s0\fR or +\&\fI\s-1ARCH\s0\fR may be specified as \fBnumeric\fR to have numbers printed +rather than names, for the selected types of registers. +You can list the available values of \fI\s-1ABI\s0\fR and \fI\s-1ARCH\s0\fR using +the \fB\-\-help\fR option. +.Sp +For \s-1VAX,\s0 you can specify function entry addresses with \fB\-M +entry:0xf00ba\fR. You can use this multiple times to properly +disassemble \s-1VAX\s0 binary files that don't contain symbol tables (like +\&\s-1ROM\s0 dumps). In these cases, the function entry mask would otherwise +be decoded as \s-1VAX\s0 instructions, which would probably lead the rest +of the function being wrongly disassembled. +.RE +.IP "\fB\-p\fR" 4 +.IX Item "-p" +.PD 0 +.IP "\fB\-\-private\-headers\fR" 4 +.IX Item "--private-headers" +.PD +Print information that is specific to the object file format. The exact +information printed depends upon the object file format. For some +object file formats, no additional information is printed. +.IP "\fB\-P\fR \fIoptions\fR" 4 +.IX Item "-P options" +.PD 0 +.IP "\fB\-\-private=\fR\fIoptions\fR" 4 +.IX Item "--private=options" +.PD +Print information that is specific to the object file format. The +argument \fIoptions\fR is a comma separated list that depends on the +format (the lists of options is displayed with the help). +.Sp +For \s-1XCOFF,\s0 the available options are: +.RS 4 +.ie n .IP """header""" 4 +.el .IP "\f(CWheader\fR" 4 +.IX Item "header" +.PD 0 +.ie n .IP """aout""" 4 +.el .IP "\f(CWaout\fR" 4 +.IX Item "aout" +.ie n .IP """sections""" 4 +.el .IP "\f(CWsections\fR" 4 +.IX Item "sections" +.ie n .IP """syms""" 4 +.el .IP "\f(CWsyms\fR" 4 +.IX Item "syms" +.ie n .IP """relocs""" 4 +.el .IP "\f(CWrelocs\fR" 4 +.IX Item "relocs" +.ie n .IP """lineno,""" 4 +.el .IP "\f(CWlineno,\fR" 4 +.IX Item "lineno," +.ie n .IP """loader""" 4 +.el .IP "\f(CWloader\fR" 4 +.IX Item "loader" +.ie n .IP """except""" 4 +.el .IP "\f(CWexcept\fR" 4 +.IX Item "except" +.ie n .IP """typchk""" 4 +.el .IP "\f(CWtypchk\fR" 4 +.IX Item "typchk" +.ie n .IP """traceback""" 4 +.el .IP "\f(CWtraceback\fR" 4 +.IX Item "traceback" +.ie n .IP """toc""" 4 +.el .IP "\f(CWtoc\fR" 4 +.IX Item "toc" +.ie n .IP """ldinfo""" 4 +.el .IP "\f(CWldinfo\fR" 4 +.IX Item "ldinfo" +.RE +.RS 4 +.PD +.Sp +Not all object formats support this option. In particular the \s-1ELF\s0 +format does not use it. +.RE +.IP "\fB\-r\fR" 4 +.IX Item "-r" +.PD 0 +.IP "\fB\-\-reloc\fR" 4 +.IX Item "--reloc" +.PD +Print the relocation entries of the file. If used with \fB\-d\fR or +\&\fB\-D\fR, the relocations are printed interspersed with the +disassembly. +.IP "\fB\-R\fR" 4 +.IX Item "-R" +.PD 0 +.IP "\fB\-\-dynamic\-reloc\fR" 4 +.IX Item "--dynamic-reloc" +.PD +Print the dynamic relocation entries of the file. This is only +meaningful for dynamic objects, such as certain types of shared +libraries. As for \fB\-r\fR, if used with \fB\-d\fR or +\&\fB\-D\fR, the relocations are printed interspersed with the +disassembly. +.IP "\fB\-s\fR" 4 +.IX Item "-s" +.PD 0 +.IP "\fB\-\-full\-contents\fR" 4 +.IX Item "--full-contents" +.PD +Display the full contents of any sections requested. By default all +non-empty sections are displayed. +.IP "\fB\-S\fR" 4 +.IX Item "-S" +.PD 0 +.IP "\fB\-\-source\fR" 4 +.IX Item "--source" +.PD +Display source code intermixed with disassembly, if possible. Implies +\&\fB\-d\fR. +.IP "\fB\-\-prefix=\fR\fIprefix\fR" 4 +.IX Item "--prefix=prefix" +Specify \fIprefix\fR to add to the absolute paths when used with +\&\fB\-S\fR. +.IP "\fB\-\-prefix\-strip=\fR\fIlevel\fR" 4 +.IX Item "--prefix-strip=level" +Indicate how many initial directory names to strip off the hardwired +absolute paths. It has no effect without \fB\-\-prefix=\fR\fIprefix\fR. +.IP "\fB\-\-show\-raw\-insn\fR" 4 +.IX Item "--show-raw-insn" +When disassembling instructions, print the instruction in hex as well as +in symbolic form. This is the default except when +\&\fB\-\-prefix\-addresses\fR is used. +.IP "\fB\-\-no\-show\-raw\-insn\fR" 4 +.IX Item "--no-show-raw-insn" +When disassembling instructions, do not print the instruction bytes. +This is the default when \fB\-\-prefix\-addresses\fR is used. +.IP "\fB\-\-insn\-width=\fR\fIwidth\fR" 4 +.IX Item "--insn-width=width" +Display \fIwidth\fR bytes on a single line when disassembling +instructions. +.IP "\fB\-W[lLiaprmfFsoRt]\fR" 4 +.IX Item "-W[lLiaprmfFsoRt]" +.PD 0 +.IP "\fB\-\-dwarf[=rawline,=decodedline,=info,=abbrev,=pubnames]\fR" 4 +.IX Item "--dwarf[=rawline,=decodedline,=info,=abbrev,=pubnames]" +.IP "\fB\-\-dwarf[=aranges,=macro,=frames,=frames\-interp,=str,=loc]\fR" 4 +.IX Item "--dwarf[=aranges,=macro,=frames,=frames-interp,=str,=loc]" +.IP "\fB\-\-dwarf[=Ranges,=pubtypes,=trace_info,=trace_abbrev]\fR" 4 +.IX Item "--dwarf[=Ranges,=pubtypes,=trace_info,=trace_abbrev]" +.IP "\fB\-\-dwarf[=trace_aranges,=gdb_index]\fR" 4 +.IX Item "--dwarf[=trace_aranges,=gdb_index]" +.PD +Displays the contents of the debug sections in the file, if any are +present. If one of the optional letters or words follows the switch +then only data found in those specific sections will be dumped. +.Sp +Note that there is no single letter option to display the content of +trace sections or .gdb_index. +.Sp +Note: the output from the \fB=info\fR option can also be affected +by the options \fB\-\-dwarf\-depth\fR, the \fB\-\-dwarf\-start\fR and +the \fB\-\-dwarf\-check\fR. +.IP "\fB\-\-dwarf\-depth=\fR\fIn\fR" 4 +.IX Item "--dwarf-depth=n" +Limit the dump of the \f(CW\*(C`.debug_info\*(C'\fR section to \fIn\fR children. +This is only useful with \fB\-\-dwarf=info\fR. The default is +to print all DIEs; the special value 0 for \fIn\fR will also have this +effect. +.Sp +With a non-zero value for \fIn\fR, DIEs at or deeper than \fIn\fR +levels will not be printed. The range for \fIn\fR is zero-based. +.IP "\fB\-\-dwarf\-start=\fR\fIn\fR" 4 +.IX Item "--dwarf-start=n" +Print only DIEs beginning with the \s-1DIE\s0 numbered \fIn\fR. This is only +useful with \fB\-\-dwarf=info\fR. +.Sp +If specified, this option will suppress printing of any header +information and all DIEs before the \s-1DIE\s0 numbered \fIn\fR. Only +siblings and children of the specified \s-1DIE\s0 will be printed. +.Sp +This can be used in conjunction with \fB\-\-dwarf\-depth\fR. +.IP "\fB\-\-dwarf\-check\fR" 4 +.IX Item "--dwarf-check" +Enable additional checks for consistency of Dwarf information. +.IP "\fB\-G\fR" 4 +.IX Item "-G" +.PD 0 +.IP "\fB\-\-stabs\fR" 4 +.IX Item "--stabs" +.PD +Display the full contents of any sections requested. Display the +contents of the .stab and .stab.index and .stab.excl sections from an +\&\s-1ELF\s0 file. This is only useful on systems (such as Solaris 2.0) in which +\&\f(CW\*(C`.stab\*(C'\fR debugging symbol-table entries are carried in an \s-1ELF\s0 +section. In most other file formats, debugging symbol-table entries are +interleaved with linkage symbols, and are visible in the \fB\-\-syms\fR +output. +.IP "\fB\-\-start\-address=\fR\fIaddress\fR" 4 +.IX Item "--start-address=address" +Start displaying data at the specified address. This affects the output +of the \fB\-d\fR, \fB\-r\fR and \fB\-s\fR options. +.IP "\fB\-\-stop\-address=\fR\fIaddress\fR" 4 +.IX Item "--stop-address=address" +Stop displaying data at the specified address. This affects the output +of the \fB\-d\fR, \fB\-r\fR and \fB\-s\fR options. +.IP "\fB\-t\fR" 4 +.IX Item "-t" +.PD 0 +.IP "\fB\-\-syms\fR" 4 +.IX Item "--syms" +.PD +Print the symbol table entries of the file. +This is similar to the information provided by the \fBnm\fR program, +although the display format is different. The format of the output +depends upon the format of the file being dumped, but there are two main +types. One looks like this: +.Sp +.Vb 2 +\& [ 4](sec 3)(fl 0x00)(ty 0)(scl 3) (nx 1) 0x00000000 .bss +\& [ 6](sec 1)(fl 0x00)(ty 0)(scl 2) (nx 0) 0x00000000 fred +.Ve +.Sp +where the number inside the square brackets is the number of the entry +in the symbol table, the \fIsec\fR number is the section number, the +\&\fIfl\fR value are the symbol's flag bits, the \fIty\fR number is the +symbol's type, the \fIscl\fR number is the symbol's storage class and +the \fInx\fR value is the number of auxilary entries associated with +the symbol. The last two fields are the symbol's value and its name. +.Sp +The other common output format, usually seen with \s-1ELF\s0 based files, +looks like this: +.Sp +.Vb 2 +\& 00000000 l d .bss 00000000 .bss +\& 00000000 g .text 00000000 fred +.Ve +.Sp +Here the first number is the symbol's value (sometimes refered to as +its address). The next field is actually a set of characters and +spaces indicating the flag bits that are set on the symbol. These +characters are described below. Next is the section with which the +symbol is associated or \fI*ABS*\fR if the section is absolute (ie +not connected with any section), or \fI*UND*\fR if the section is +referenced in the file being dumped, but not defined there. +.Sp +After the section name comes another field, a number, which for common +symbols is the alignment and for other symbol is the size. Finally +the symbol's name is displayed. +.Sp +The flag characters are divided into 7 groups as follows: +.RS 4 +.ie n .IP """l""" 4 +.el .IP "\f(CWl\fR" 4 +.IX Item "l" +.PD 0 +.ie n .IP """g""" 4 +.el .IP "\f(CWg\fR" 4 +.IX Item "g" +.ie n .IP """u""" 4 +.el .IP "\f(CWu\fR" 4 +.IX Item "u" +.ie n .IP """!""" 4 +.el .IP "\f(CW!\fR" 4 +.IX Item "!" +.PD +The symbol is a local (l), global (g), unique global (u), neither +global nor local (a space) or both global and local (!). A +symbol can be neither local or global for a variety of reasons, e.g., +because it is used for debugging, but it is probably an indication of +a bug if it is ever both local and global. Unique global symbols are +a \s-1GNU\s0 extension to the standard set of \s-1ELF\s0 symbol bindings. For such +a symbol the dynamic linker will make sure that in the entire process +there is just one symbol with this name and type in use. +.ie n .IP """w""" 4 +.el .IP "\f(CWw\fR" 4 +.IX Item "w" +The symbol is weak (w) or strong (a space). +.ie n .IP """C""" 4 +.el .IP "\f(CWC\fR" 4 +.IX Item "C" +The symbol denotes a constructor (C) or an ordinary symbol (a space). +.ie n .IP """W""" 4 +.el .IP "\f(CWW\fR" 4 +.IX Item "W" +The symbol is a warning (W) or a normal symbol (a space). A warning +symbol's name is a message to be displayed if the symbol following the +warning symbol is ever referenced. +.ie n .IP """I""" 4 +.el .IP "\f(CWI\fR" 4 +.IX Item "I" +.PD 0 +.ie n .IP """i""" 4 +.el .IP "\f(CWi\fR" 4 +.IX Item "i" +.PD +The symbol is an indirect reference to another symbol (I), a function +to be evaluated during reloc processing (i) or a normal symbol (a +space). +.ie n .IP """d""" 4 +.el .IP "\f(CWd\fR" 4 +.IX Item "d" +.PD 0 +.ie n .IP """D""" 4 +.el .IP "\f(CWD\fR" 4 +.IX Item "D" +.PD +The symbol is a debugging symbol (d) or a dynamic symbol (D) or a +normal symbol (a space). +.ie n .IP """F""" 4 +.el .IP "\f(CWF\fR" 4 +.IX Item "F" +.PD 0 +.ie n .IP """f""" 4 +.el .IP "\f(CWf\fR" 4 +.IX Item "f" +.ie n .IP """O""" 4 +.el .IP "\f(CWO\fR" 4 +.IX Item "O" +.PD +The symbol is the name of a function (F) or a file (f) or an object +(O) or just a normal symbol (a space). +.RE +.RS 4 +.RE +.IP "\fB\-T\fR" 4 +.IX Item "-T" +.PD 0 +.IP "\fB\-\-dynamic\-syms\fR" 4 +.IX Item "--dynamic-syms" +.PD +Print the dynamic symbol table entries of the file. This is only +meaningful for dynamic objects, such as certain types of shared +libraries. This is similar to the information provided by the \fBnm\fR +program when given the \fB\-D\fR (\fB\-\-dynamic\fR) option. +.Sp +The output format is similar to that produced by the \fB\-\-syms\fR +option, except that an extra field is inserted before the symbol's +name, giving the version information associated with the symbol. +If the version is the default version to be used when resolving +unversioned references to the symbol then it's displayed as is, +otherwise it's put into parentheses. +.IP "\fB\-\-special\-syms\fR" 4 +.IX Item "--special-syms" +When displaying symbols include those which the target considers to be +special in some way and which would not normally be of interest to the +user. +.IP "\fB\-V\fR" 4 +.IX Item "-V" +.PD 0 +.IP "\fB\-\-version\fR" 4 +.IX Item "--version" +.PD +Print the version number of \fBobjdump\fR and exit. +.IP "\fB\-x\fR" 4 +.IX Item "-x" +.PD 0 +.IP "\fB\-\-all\-headers\fR" 4 +.IX Item "--all-headers" +.PD +Display all available header information, including the symbol table and +relocation entries. Using \fB\-x\fR is equivalent to specifying all of +\&\fB\-a \-f \-h \-p \-r \-t\fR. +.IP "\fB\-w\fR" 4 +.IX Item "-w" +.PD 0 +.IP "\fB\-\-wide\fR" 4 +.IX Item "--wide" +.PD +Format some lines for output devices that have more than 80 columns. +Also do not truncate symbol names when they are displayed. +.IP "\fB\-z\fR" 4 +.IX Item "-z" +.PD 0 +.IP "\fB\-\-disassemble\-zeroes\fR" 4 +.IX Item "--disassemble-zeroes" +.PD +Normally the disassembly output will skip blocks of zeroes. This +option directs the disassembler to disassemble those blocks, just like +any other data. +.IP "\fB@\fR\fIfile\fR" 4 +.IX Item "@file" +Read command-line options from \fIfile\fR. The options read are +inserted in place of the original @\fIfile\fR option. If \fIfile\fR +does not exist, or cannot be read, then the option will be treated +literally, and not removed. +.Sp +Options in \fIfile\fR are separated by whitespace. A whitespace +character may be included in an option by surrounding the entire +option in either single or double quotes. Any character (including a +backslash) may be included by prefixing the character to be included +with a backslash. The \fIfile\fR may itself contain additional +@\fIfile\fR options; any such options will be processed recursively. +.SH "SEE ALSO" +.IX Header "SEE ALSO" +\&\fInm\fR\|(1), \fIreadelf\fR\|(1), and the Info entries for \fIbinutils\fR. +.SH "COPYRIGHT" +.IX Header "COPYRIGHT" +Copyright (c) 1991\-2017 Free Software Foundation, Inc. +.PP +Permission is granted to copy, distribute and/or modify this document +under the terms of the \s-1GNU\s0 Free Documentation License, Version 1.3 +or any later version published by the Free Software Foundation; +with no Invariant Sections, with no Front-Cover Texts, and with no +Back-Cover Texts. A copy of the license is included in the +section entitled \*(L"\s-1GNU\s0 Free Documentation License\*(R". |