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+.\" Automatically generated by Pod::Man 2.16 (Pod::Simple 3.05)
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+.\" Escape single quotes in literal strings from groff's Unicode transform.
+.ie \n(.g .ds Aq \(aq
+.el .ds Aq '
+.\"
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.\" titles (.TH), headers (.SH), subsections (.Sh), items (.Ip), and index
.\" entries marked with X<> in POD. Of course, you'll have to process the
.\" output yourself in some meaningful fashion.
-.if \nF \{\
+.ie \nF \{\
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.\}
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-.\" For nroff, turn off justification. Always turn off hyphenation; it makes
-.\" way too many mistakes in technical documents.
-.hy 0
+.el \{\
+. de IX
+..
+.\}
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.\"
.IX Title "OBJDUMP 1"
-.TH OBJDUMP 1 "2007-08-06" "binutils-2.17.90" "GNU Development Tools"
+.TH OBJDUMP 1 "2009-10-16" "binutils-2.20" "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"
[\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\-r\fR|\fB\-\-reloc\fR]
[\fB\-R\fR|\fB\-\-dynamic\-reloc\fR]
[\fB\-s\fR|\fB\-\-full\-contents\fR]
- [\fB\-W\fR|\fB\-\-dwarf\fR]
+ [\fB\-W[lLiaprmfFsoR]\fR|
+ \fB\-\-dwarf\fR[=rawline,=decodedline,=info,=abbrev,=pubnames,=aranges,=macro,=frames,=frames\-interp,=str,=loc,=Ranges]]
[\fB\-G\fR|\fB\-\-stabs\fR]
[\fB\-t\fR|\fB\-\-syms\fR]
[\fB\-T\fR|\fB\-\-dynamic\-syms\fR]
[\fB\-\-[no\-]show\-raw\-insn\fR]
[\fB\-\-adjust\-vma=\fR\fIoffset\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...
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.
+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 debugging
-information stored in the file and print it out using a C like syntax.
-Only certain types of debugging information have been implemented.
-Some other types are supported by \fBreadelf \-w\fR.
+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
.PD
Like \fB\-d\fR, but disassemble the contents of all sections, not just
those expected to contain instructions.
+.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
.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
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
following may be specified as a comma separated string.
\&\fBx86\-64\fR, \fBi386\fR and \fBi8086\fR select disassembly for
the given architecture. \fBintel\fR and \fBatt\fR select between
-intel syntax mode and \s-1AT&T\s0 syntax mode. \fBaddr64\fR, \fBaddr32\fR,
+intel syntax mode and \s-1AT&T\s0 syntax mode.
+\&\fBintel-mnemonic\fR and \fBatt-mnemonic\fR select between
+intel mnemonic mode and \s-1AT&T\s0 mnemonic mode. \fBintel-mnemonic\fR
+implies \fBintel\fR and \fBatt-mnemonic\fR implies \fBatt\fR.
+\&\fBaddr64\fR, \fBaddr32\fR,
\&\fBaddr16\fR, \fBdata32\fR and \fBdata16\fR specify the default
address size and operand size. These four options will be overridden if
\&\fBx86\-64\fR, \fBi386\fR or \fBi8086\fR appear later in the
instructs the disassembler to print a mnemonic suffix even when the
suffix could be inferred by the operands.
.Sp
-For \s-1PPC\s0, \fBbooke\fR, \fBbooke32\fR and \fBbooke64\fR select
-disassembly of BookE instructions. \fB32\fR and \fB64\fR select
-PowerPC and PowerPC64 disassembly, respectively. \fBe300\fR selects
+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.
+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
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 """gpr\-names=\f(CI\s-1ABI\s0\f(CW""" 4
-.el .IP "\f(CWgpr\-names=\f(CI\s-1ABI\s0\f(CW\fR" 4
+.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
+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(CI\s-1ABI\s0\f(CW""" 4
-.el .IP "\f(CWfpr\-names=\f(CI\s-1ABI\s0\f(CW\fR" 4
+.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
+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(CI\s-1ARCH\s0\f(CW""" 4
-.el .IP "\f(CWcp0\-names=\f(CI\s-1ARCH\s0\f(CW\fR" 4
+.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(CI\s-1ARCH\s0\f(CW""" 4
-.el .IP "\f(CWhwr\-names=\f(CI\s-1ARCH\s0\f(CW\fR" 4
+.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(CI\s-1ABI\s0\f(CW""" 4
-.el .IP "\f(CWreg\-names=\f(CI\s-1ABI\s0\f(CW\fR" 4
+.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(CI\s-1ARCH\s0\f(CW""" 4
-.el .IP "\f(CWreg\-names=\f(CI\s-1ARCH\s0\f(CW\fR" 4
+.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.
.PD
Print the dynamic relocation entries of the file. This is only
meaningful for dynamic objects, such as certain types of shared
-libraries.
+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
.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
.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\-W\fR" 4
-.IX Item "-W"
+.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[lLiaprmfFsoR]\fR" 4
+.IX Item "-W[lLiaprmfFsoR]"
.PD 0
-.IP "\fB\-\-dwarf\fR" 4
-.IX Item "--dwarf"
+.IP "\fB\-\-dwarf[=rawline,=decodedline,=info,=abbrev,=pubnames,=aranges,=macro,=frames,=frames\-interp,=str,=loc,=Ranges]\fR" 4
+.IX Item "--dwarf[=rawline,=decodedline,=info,=abbrev,=pubnames,=aranges,=macro,=frames,=frames-interp,=str,=loc,=Ranges]"
.PD
-Displays the contents of the \s-1DWARF\s0 debug sections in the file, if any
-are present.
+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.
.IP "\fB\-G\fR" 4
.IX Item "-G"
.PD 0
.IX Item "--syms"
.PD
Print the symbol table entries of the file.
-This is similar to the information provided by the \fBnm\fR program.
+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
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.
+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
.SH "COPYRIGHT"
.IX Header "COPYRIGHT"
Copyright (c) 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999,
-2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007 Free Software Foundation, Inc.
+2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009 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 1.1
+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
projects / msp430-binutils.git / blobdiff