diff options
Diffstat (limited to 'gdb/doc')
| -rw-r--r-- | gdb/doc/ChangeLog | 6 | ||||
| -rw-r--r-- | gdb/doc/gdb.texinfo | 48 |
2 files changed, 49 insertions, 5 deletions
diff --git a/gdb/doc/ChangeLog b/gdb/doc/ChangeLog index f07e385..8e8f8c5 100644 --- a/gdb/doc/ChangeLog +++ b/gdb/doc/ChangeLog @@ -1,3 +1,9 @@ +Wed Jan 12 21:29:54 1994 John Gilmore (gnu@cygnus.com) + + * gdb.texinfo (Print Settings): Document `set print + fast-symbolic-addr' and improve the doc for some other + `set print's. + Mon Jan 3 17:23:07 1994 Jim Kingdon (kingdon@lioth.cygnus.com) * stabs.texinfo (String Field): Talk about defining several type diff --git a/gdb/doc/gdb.texinfo b/gdb/doc/gdb.texinfo index 5585e1b..13f0c77 100644 --- a/gdb/doc/gdb.texinfo +++ b/gdb/doc/gdb.texinfo @@ -1,5 +1,5 @@ \input texinfo @c -*-texinfo-*- -@c Copyright (c) 1988 1989 1990 1991 1992 1993 Free Software Foundation, Inc. +@c Copyright 1988 1989 1990 1991 1992 1993 1994 Free Software Foundation, Inc. @c @c %**start of header @c makeinfo ignores cmds prev to setfilename, so its arg cannot make use @@ -4378,6 +4378,17 @@ Show whether or not @value{GDBN} will print the source file name and line number of a symbol in the symbolic form of an address. @end table +Another situation where it's helpful to show symbol filenames and line +numbers is when disassembling code; @value{GDBN} will show you the line +number and source file that corresponds to each instruction. + +If you have a pointer and you aren't sure what object it points to, +you can turn on printing of symbolic addresses and filenames, and +determine the name and source file location of the variable which +is being pointed to, using the @code{x/x @var{pointer}} command. +This displays the memory location pointed to, and as a side effect, +interprets the address in symbolic form. + Also, you may wish to see the symbolic form only if the address being printed is reasonably close to the closest earlier symbol: @@ -4395,6 +4406,32 @@ Ask how large the maximum offset is that @value{GDBN} will print in a symbolic address. @end table +Sometimes @value{GDBN} can tell you more about an address if it does an +extensive search of its symbol information. The default is to provide +a quick symbolic display that is usually correct, but which may not give +the most useful answer when working in some object file formats. If +you aren't getting the information you need, try: + +@table @code +@item set print fast-symbolic-addr off +@kindex set print fast-symbolic-addr +Search all symbolic information when displaying an address symbolically. +This setting may display more information about static variables, for +example, but will take longer. + +@item set print fast-symbolic-addr +@item set print fast-symbolic-addr on +Search only the ``minimal symbol information'' when displaying symbolic +information about an address. This is the default. + +@item show print fast-symbolic-addr +@kindex show print fast-symbolic-addr +Ask whether @value{GDBN} will use a fast or slow method of printing +symbolic address. +@end table + +Other settings control how different kinds of objects are printed: + @table @code @item set print array @itemx set print array on @@ -4461,12 +4498,13 @@ Show which format @value{GDBN} will use to print structures. @kindex set print sevenbit-strings Print using only seven-bit characters; if this option is set, @value{GDBN} will display any eight-bit characters (in strings or character -values) using the notation @code{\}@var{nnn}. For example, @kbd{M-a} is -displayed as @code{\341}. +values) using the notation @code{\}@var{nnn}. This setting is best when +working in English (ASCII) and the high-order bit of characters is used +as a marker or ``meta'' bit. @item set print sevenbit-strings off -Print using either seven-bit or eight-bit characters, as required. This -is the default. +Print full eight-bit characters. This +allows the use of full international character sets, and is the default. @item show print sevenbit-strings @kindex show print sevenbit-strings |