contains all addresses and constants that require
link-time relocation, and items in the table can be
referenced indirectly from the debugging information via
-the \DWFORMaddrx{} form,
+the \DWFORMaddrxXNand{} forms,
by the \DWOPaddrx{} and \DWOPconstx{} operators, and
by certain of the \texttt{DW\_LLE\_*} location list
and \texttt{DW\_RLE\_*} range list entries.
uses one of the indirect string forms (\DWFORMstrp{},
\DWFORMstrxXNor).
\eb
+\needlines{4}
\item
A string offsets table, in the \dotdebugstroffsets{}
section for strings in the \dotdebugstr{} section.
The full compilation unit, in the \dotdebuginfodwo{} section.
Attributes contained in the full compilation unit
-may refer to machine addresses indirectly using the \DWFORMaddrx{}
-form, which accesses the table of addresses specified by the
+may refer to machine addresses indirectly using
+\bb
+one of the
+\eb
+\DWFORMaddrxXNor{}
+forms, which access the table of addresses specified by the
\DWATaddrbase{} attribute in the associated skeleton unit.
Location descriptions may similarly do so using the \DWOPaddrx{} and
\DWOPconstx{} operations.
header, a section table, a number of DWARF debug information
sections, and two index sections.
-\needlines{10}
+%\needlines{8}
Each DWARF package file contains no more than one of each of the
following sections, copied from a set of object or DWARF object
files, and combined, section by section:
\end{centering}
\bb
-All unit headers have the same initial three fields.
+All unit headers have the same initial three fields: \HFNinitiallength, \HFNversion{} and \HFNunittype.
\eb
-
\needlines{5}
\bb
\subsubsection{Full and Partial Compilation Unit Headers}
the primary type contained in this
\addtoindex{type unit} uses this value.}
-%\needlines{8}
+\needlines{8}
\item \texttt{type\_offset} (\livelink{datarep:sectionoffsetlength}{section offset}) \\
\addttindexx{type\_offset}
A 4-byte or 8-byte unsigned offset
is relocated in an executable file or shared object file.
\item An indirect index into a table of addresses (as
-described in the previous bullet) in the
-\dotdebugaddr{} section (\DWFORMaddrxTARG).
+described in the previous bullet) in the \dotdebugaddr{} section
+\bb
+(\DWFORMaddrxTARG, \DWFORMaddrxoneTARG, \DWFORMaddrxtwoTARG,
+\DWFORMaddrxthreeTARG{} and \DWFORMaddrxfourTARG).
+\eb
The representation of a \DWFORMaddrxNAME{} value is an unsigned
\addtoindex{LEB128} value, which is interpreted as a zero-based
index into an array of addresses in the \dotdebugaddr{} section.
+\bb
+The representation of a \DWFORMaddrxoneNAME, \DWFORMaddrxtwoNAME,
+\DWFORMaddrxthreeNAME{} or \DWFORMaddrxfourNAME{} value is a
+1-, 2-, 3- or 4-byte unsigned integer value, respectively,
+which is similarly interpretated.
+\eb
The index is relative to the value of the \DWATaddrbase{} attribute
of the associated compilation unit.
or location description
(see Section \refersec{chap:locationdescriptions}).
-\needlines{4}
+\needlines{8}
\item \CLASSflag \\
\livetarg{datarep:classflag}{}
A flag \addtoindexx{flag class}
\textit{This class is new in \DWARFVersionV.}
-\needlines{4}
+\needlines{8}
\item \CLASSreference \\
\livetarg{datarep:classreference}{}
There are four types of reference.\addtoindexx{reference class}
A string may be represented:
\begin{itemize}
\setlength{\itemsep}{0em}
-\item immediately in the debugging information entry itself
+\item Immediately in the debugging information entry itself
(\DWFORMstringTARG),
-\item as an
+\item As an
\addtoindexx{section offset!in class string value}
offset into a string table contained in
the \dotdebugstr{} section of the object file (\DWFORMstrpTARG),
(see Section \refersec{datarep:32bitand64bitdwarfformats}).
\needlines{6}
-\item as an indirect offset into the string table using an
+\item As an indirect offset into the string table using an
index into a table of offsets contained in the
\dotdebugstroffsets{} section of the object file
\bb
& & \CLASSmacptr, \CLASSrnglist, \CLASSrnglistsptr, \CLASSstroffsetsptr \\
\DWFORMexprloc{} &0x18&\livelink{chap:classexprloc}{exprloc} \\
\DWFORMflagpresent{} &0x19&\livelink{chap:classflag}{flag} \\
-\DWFORMstrx{} \ddag &0x1a&\livelink{chap:classstring}{string} \\
-\DWFORMaddrx{} \ddag &0x1b&\livelink{chap:classaddress}{address} \\
-\DWFORMrefsupfour{}~\ddag &0x1c &\livelink{chap:classreference}{reference} \\
-\DWFORMstrpsup{}~\ddag &0x1d &\livelink{chap:classstring}{string} \\
-\DWFORMdatasixteen~\ddag &0x1e &\CLASSconstant \\
-\DWFORMlinestrp~\ddag &0x1f &\CLASSstring \\
-\DWFORMrefsigeight &0x20 &\livelink{chap:classreference}{reference} \\
+\DWFORMstrx{} \ddag &0x1a &\CLASSstring \\
+\DWFORMaddrx{} \ddag &0x1b &\CLASSaddress \\
+\DWFORMrefsupfour{}~\ddag &0x1c &\CLASSreference \\
+\DWFORMstrpsup{}~\ddag &0x1d &\CLASSstring \\
+\DWFORMdatasixteen~\ddag &0x1e &\CLASSconstant \\
+\DWFORMlinestrp~\ddag &0x1f &\CLASSstring \\
+\DWFORMrefsigeight &0x20 &\CLASSreference \\
\DWFORMimplicitconst~\ddag &0x21 &\CLASSconstant \\
-\DWFORMloclistx~\ddag &0x22 &\CLASSloclist \\
-\DWFORMrnglistx~\ddag &0x23 &\CLASSrnglist \\
+\DWFORMloclistx~\ddag &0x22 &\CLASSloclist \\
+\DWFORMrnglistx~\ddag &0x23 &\CLASSrnglist \\
\DWFORMrefsupeight{}~\ddag &0x24 &\CLASSreference \\
\bb
-\DWFORMstrxone{}~\ddag &0x25 &\CLASSstring \\
-\DWFORMstrxtwo{}~\ddag &0x26 &\CLASSstring \\
-\DWFORMstrxthree{}~\ddag &0x27 &\CLASSstring \\
+\DWFORMstrxone{}~\ddag &0x25 &\CLASSstring \\
+\DWFORMstrxtwo{}~\ddag &0x26 &\CLASSstring \\
+\DWFORMstrxthree{}~\ddag &0x27 &\CLASSstring \\
+\DWFORMstrxfour{}~\ddag &0x28 &\CLASSstring \\
+\DWFORMaddrxone{}~\ddag &0x29 &\CLASSaddress \\
+\DWFORMaddrxtwo{}~\ddag &0x2a &\CLASSaddress \\
+\DWFORMaddrxthree{}~\ddag &0x2b &\CLASSaddress \\
\eb
-\DWFORMstrxfour{}~\ddag &0x28 &\CLASSstring \\
+\DWFORMaddrxfour{}~\ddag &0x2c &\CLASSaddress \\
\end{longtable}
\end{centering}
DWARF Git Projects / dwarf-doc.git / blobdiff