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[/] [openrisc/] [trunk/] [gnu-old/] [binutils-2.18.50/] [binutils/] [doc/] [readelf.1] - Blame information for rev 816

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.rm #[ #] #H #V #F C
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.\" ========================================================================
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.\"
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.IX Title "READELF 1"
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.TH READELF 1 "2008-05-06" "binutils-2.18.50" "GNU Development Tools"
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.SH "NAME"
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readelf \- Displays information about ELF files.
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.SH "SYNOPSIS"
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.IX Header "SYNOPSIS"
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readelf [\fB\-a\fR|\fB\-\-all\fR]
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        [\fB\-h\fR|\fB\-\-file\-header\fR]
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        [\fB\-l\fR|\fB\-\-program\-headers\fR|\fB\-\-segments\fR]
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        [\fB\-S\fR|\fB\-\-section\-headers\fR|\fB\-\-sections\fR]
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        [\fB\-g\fR|\fB\-\-section\-groups\fR]
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        [\fB\-t\fR|\fB\-\-section\-details\fR]
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        [\fB\-e\fR|\fB\-\-headers\fR]
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        [\fB\-s\fR|\fB\-\-syms\fR|\fB\-\-symbols\fR]
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        [\fB\-n\fR|\fB\-\-notes\fR]
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        [\fB\-r\fR|\fB\-\-relocs\fR]
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        [\fB\-u\fR|\fB\-\-unwind\fR]
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        [\fB\-d\fR|\fB\-\-dynamic\fR]
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        [\fB\-V\fR|\fB\-\-version\-info\fR]
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        [\fB\-A\fR|\fB\-\-arch\-specific\fR]
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        [\fB\-D\fR|\fB\-\-use\-dynamic\fR]
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        [\fB\-x\fR |\fB\-\-hex\-dump=\fR]
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        [\fB\-p\fR |\fB\-\-string\-dump=\fR]
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        [\fB\-c\fR|\fB\-\-archive\-index\fR]
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        [\fB\-w[lLiaprmfFsoR]\fR|
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         \fB\-\-debug\-dump\fR[=rawline,=decodedline,=info,=abbrev,=pubnames,=aranges,=macro,=frames,=frames\-interp,=str,=loc,=Ranges]]
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        [\fB\-I\fR|\fB\-histogram\fR]
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        [\fB\-v\fR|\fB\-\-version\fR]
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        [\fB\-W\fR|\fB\-\-wide\fR]
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        [\fB\-H\fR|\fB\-\-help\fR]
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        \fIelffile\fR...
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.SH "DESCRIPTION"
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.IX Header "DESCRIPTION"
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\&\fBreadelf\fR displays information about one or more \s-1ELF\s0 format object
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files.  The options control what particular information to display.
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.PP
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\&\fIelffile\fR... are the object files to be examined.  32\-bit and
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64\-bit \s-1ELF\s0 files are supported, as are archives containing \s-1ELF\s0 files.
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.PP
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This program performs a similar function to \fBobjdump\fR but it
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goes into more detail and it exists independently of the \s-1BFD\s0
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library, so if there is a bug in \s-1BFD\s0 then readelf will not be
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affected.
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.SH "OPTIONS"
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.IX Header "OPTIONS"
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The long and short forms of options, shown here as alternatives, are
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equivalent.  At least one option besides \fB\-v\fR or \fB\-H\fR must be
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given.
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.IP "\fB\-a\fR" 4
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.IX Item "-a"
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.PD 0
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.IP "\fB\-\-all\fR" 4
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.IX Item "--all"
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.PD
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Equivalent to specifying \fB\-\-file\-header\fR,
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\&\fB\-\-program\-headers\fR, \fB\-\-sections\fR, \fB\-\-symbols\fR,
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\&\fB\-\-relocs\fR, \fB\-\-dynamic\fR, \fB\-\-notes\fR and
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\&\fB\-\-version\-info\fR.
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.IP "\fB\-h\fR" 4
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.IX Item "-h"
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.PD 0
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.IP "\fB\-\-file\-header\fR" 4
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.IX Item "--file-header"
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.PD
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Displays the information contained in the \s-1ELF\s0 header at the start of the
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file.
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.IP "\fB\-l\fR" 4
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.IX Item "-l"
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.PD 0
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.IP "\fB\-\-program\-headers\fR" 4
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.IX Item "--program-headers"
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.IP "\fB\-\-segments\fR" 4
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.IX Item "--segments"
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.PD
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Displays the information contained in the file's segment headers, if it
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has any.
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.IP "\fB\-S\fR" 4
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.IX Item "-S"
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.PD 0
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.IP "\fB\-\-sections\fR" 4
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.IX Item "--sections"
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.IP "\fB\-\-section\-headers\fR" 4
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.IX Item "--section-headers"
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.PD
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Displays the information contained in the file's section headers, if it
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has any.
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.IP "\fB\-g\fR" 4
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.IX Item "-g"
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.PD 0
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.IP "\fB\-\-section\-groups\fR" 4
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.IX Item "--section-groups"
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.PD
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Displays the information contained in the file's section groups, if it
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has any.
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.IP "\fB\-t\fR" 4
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.IX Item "-t"
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.PD 0
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.IP "\fB\-\-section\-details\fR" 4
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.IX Item "--section-details"
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.PD
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Displays the detailed section information. Implies \fB\-S\fR.
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.IP "\fB\-s\fR" 4
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.IX Item "-s"
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.PD 0
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.IP "\fB\-\-symbols\fR" 4
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.IX Item "--symbols"
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.IP "\fB\-\-syms\fR" 4
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.IX Item "--syms"
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.PD
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Displays the entries in symbol table section of the file, if it has one.
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.IP "\fB\-e\fR" 4
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.IX Item "-e"
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.PD 0
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.IP "\fB\-\-headers\fR" 4
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.IX Item "--headers"
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.PD
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Display all the headers in the file.  Equivalent to \fB\-h \-l \-S\fR.
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.IP "\fB\-n\fR" 4
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.IX Item "-n"
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.PD 0
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.IP "\fB\-\-notes\fR" 4
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.IX Item "--notes"
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.PD
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Displays the contents of the \s-1NOTE\s0 segments and/or sections, if any.
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.IP "\fB\-r\fR" 4
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.IX Item "-r"
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.PD 0
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.IP "\fB\-\-relocs\fR" 4
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.IX Item "--relocs"
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.PD
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Displays the contents of the file's relocation section, if it has one.
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.IP "\fB\-u\fR" 4
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.IX Item "-u"
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.PD 0
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.IP "\fB\-\-unwind\fR" 4
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.IX Item "--unwind"
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.PD
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Displays the contents of the file's unwind section, if it has one.  Only
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the unwind sections for \s-1IA64\s0 \s-1ELF\s0 files are currently supported.
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.IP "\fB\-d\fR" 4
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.IX Item "-d"
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.PD 0
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.IP "\fB\-\-dynamic\fR" 4
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.IX Item "--dynamic"
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.PD
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Displays the contents of the file's dynamic section, if it has one.
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.IP "\fB\-V\fR" 4
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.IX Item "-V"
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.PD 0
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.IP "\fB\-\-version\-info\fR" 4
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.IX Item "--version-info"
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.PD
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Displays the contents of the version sections in the file, it they
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exist.
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.IP "\fB\-A\fR" 4
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.IX Item "-A"
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.PD 0
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.IP "\fB\-\-arch\-specific\fR" 4
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.IX Item "--arch-specific"
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.PD
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Displays architecture-specific information in the file, if there
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is any.
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.IP "\fB\-D\fR" 4
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.IX Item "-D"
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.PD 0
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.IP "\fB\-\-use\-dynamic\fR" 4
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.IX Item "--use-dynamic"
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.PD
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When displaying symbols, this option makes \fBreadelf\fR use the
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symbol table in the file's dynamic section, rather than the one in the
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symbols section.
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.IP "\fB\-x \fR" 4
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.IX Item "-x "
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.PD 0
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.IP "\fB\-\-hex\-dump=\fR" 4
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.IX Item "--hex-dump="
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.PD
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Displays the contents of the indicated section as a hexadecimal dump.
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A number identifies a particular section by index in the section table;
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any other string identifies all sections with that name in the object file.
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.IP "\fB\-p \fR" 4
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.IX Item "-p "
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.PD 0
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.IP "\fB\-\-string\-dump=\fR" 4
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.IX Item "--string-dump="
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.PD
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Displays the contents of the indicated section as printable strings.
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A number identifies a particular section by index in the section table;
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any other string identifies all sections with that name in the object file.
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.IP "\fB\-c\fR" 4
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.IX Item "-c"
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.PD 0
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.IP "\fB\-\-archive\-index\fR" 4
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.IX Item "--archive-index"
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.PD
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Displays the file symbol index infomation contained in the header part
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of binary archives.  Performs the same function as the \fBt\fR
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command to \fBar\fR, but without using the \s-1BFD\s0 library.
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.IP "\fB\-w[lLiaprmfFsoR]\fR" 4
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.IX Item "-w[lLiaprmfFsoR]"
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.PD 0
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.IP "\fB\-\-debug\-dump[=rawline,=decodedline,=info,=abbrev,=pubnames,=aranges,=macro,=frames,=frames\-interp,=str,=loc,=Ranges]\fR" 4
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.IX Item "--debug-dump[=rawline,=decodedline,=info,=abbrev,=pubnames,=aranges,=macro,=frames,=frames-interp,=str,=loc,=Ranges]"
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.PD
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Displays the contents of the debug sections in the file, if any are
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present.  If one of the optional letters or words follows the switch
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then only data found in those specific sections will be dumped.
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.Sp
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Note: the \fB=decodedline\fR option will display the interpreted
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contents of a .debug_line section whereas the \fB=rawline\fR option
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dumps the contents in a raw format.
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.IP "\fB\-I\fR" 4
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.IX Item "-I"
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.PD 0
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.IP "\fB\-\-histogram\fR" 4
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.IX Item "--histogram"
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.PD
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Display a histogram of bucket list lengths when displaying the contents
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of the symbol tables.
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.IP "\fB\-v\fR" 4
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.IX Item "-v"
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.PD 0
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.IP "\fB\-\-version\fR" 4
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.IX Item "--version"
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.PD
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Display the version number of readelf.
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.IP "\fB\-W\fR" 4
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.IX Item "-W"
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.PD 0
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.IP "\fB\-\-wide\fR" 4
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.IX Item "--wide"
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.PD
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Don't break output lines to fit into 80 columns. By default
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\&\fBreadelf\fR breaks section header and segment listing lines for
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64\-bit \s-1ELF\s0 files, so that they fit into 80 columns. This option causes
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\&\fBreadelf\fR to print each section header resp. each segment one a
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single line, which is far more readable on terminals wider than 80 columns.
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.IP "\fB\-H\fR" 4
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.IX Item "-H"
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.PD 0
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.IP "\fB\-\-help\fR" 4
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.IX Item "--help"
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.PD
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Display the command line options understood by \fBreadelf\fR.
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.IP "\fB@\fR\fIfile\fR" 4
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.IX Item "@file"
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Read command-line options from \fIfile\fR.  The options read are
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inserted in place of the original @\fIfile\fR option.  If \fIfile\fR
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does not exist, or cannot be read, then the option will be treated
379
literally, and not removed.
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.Sp
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Options in \fIfile\fR are separated by whitespace.  A whitespace
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character may be included in an option by surrounding the entire
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option in either single or double quotes.  Any character (including a
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backslash) may be included by prefixing the character to be included
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with a backslash.  The \fIfile\fR may itself contain additional
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@\fIfile\fR options; any such options will be processed recursively.
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.SH "SEE ALSO"
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.IX Header "SEE ALSO"
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\&\fIobjdump\fR\|(1), and the Info entries for \fIbinutils\fR.
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.SH "COPYRIGHT"
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.IX Header "COPYRIGHT"
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Copyright (c) 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999,
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2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008 Free Software Foundation, Inc.
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.PP
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Permission is granted to copy, distribute and/or modify this document
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under the terms of the \s-1GNU\s0 Free Documentation License, Version 1.2
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or any later version published by the Free Software Foundation;
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with no Invariant Sections, with no Front-Cover Texts, and with no
399
Back-Cover Texts.  A copy of the license is included in the
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section entitled \*(L"\s-1GNU\s0 Free Documentation License\*(R".

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