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* Makefile.in (underscore.c): Automatically generate

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(using nm) a file with the variable prepends_underscore.
	* Makefile.in (c++filt):  Link underscore.o with cplus-dem.o
	so that initial underscores get removed iff appropriate.
	* binutils.texi:  Preliminary documentation for c++filt.
	* Makefile.in, binutils.texi:  Set to version 2.2.
This commit is contained in:
Per Bothner 1993-05-15 00:25:03 +00:00
parent d968d5b48f
commit b6216af269
1 changed files with 33 additions and 4 deletions
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37
binutils/binutils.texi
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@ -52,7 +52,7 @@ into another language, under the above conditions for modified versions.
@titlepage
@finalout
@title The GNU Binary Utilities
@subtitle Version 2.01
@subtitle Version 2.2
@sp 1
@subtitle April 1993
@author Roland H. Pesch
@ -87,7 +87,7 @@ into another language, under the above conditions for modified versions.
@cindex version
This brief manual contains preliminary documentation for the GNU binary
utilities (collectively version 2.1):
utilities (collectively version 2.2):
@iftex
@table @code
@ -123,6 +123,7 @@ Discard symbols
* ranlib:: Generate index to archive contents
* size:: List section sizes and total size
* strip:: Discard symbols
* c++filt:: Filter to demangle encoded C++ symbols
* Index::
@end menu
@ -965,7 +966,7 @@ on listing available formats.
Display the version number of @code{size}.
@end table
@node strip, Index, size, Top
@node strip, c++filt, size, Top
@chapter strip
@kindex strip
@ -1035,7 +1036,35 @@ Verbose output: list all object files modified. In the case of
archives, @samp{strip -v} lists all members of the archive.
@end table
@node Index, , strip, Top
@node c++filt, Index, strip, Top
@chapter c++filt
@kindex c++filt
@cindex demangling C++ symbols
The C++ language provides function overloading, which means that
the user can write many function with the same name (but taking
different kinds of parameters). So that the linker can keep these
overloaded functions from clashing, all C++ function names are
encoded ("mangled") into a funny-looking low-level assembly label.
The @code{c++filt} program does the inverse mapping: It decodes
("demangles") low-level names into user-level names.
When @code{c++filt} is used as a filter (which is usually the case),
it reads from standard input. Every alphanumeric word (consisting
of letters, digits, underscores, dollars, or periods) seen in the
input is a potential label. If the label decodes into a C++ name.
the C++ name will replace the low-level name in the output.
A typical use of @code{c++filt} is to pipe the output of @code{nm}
though it.
Note that on some systems, both the C and C++ compilers prepend
an underscore in front of every name. (I.e. the C name @code{foo}
gets the low-level name @code{_foo}.) On such systems, @code{c++filt}
will remove any initial underscore of a potential label.
@node Index, , c++filt, Top
@unnumbered Index
@printindex cp