[commit-womb] qualitycode qualitycode.texi

[Ludovic Courtès]

CVSROOT:        /sources/womb
Module name:    qualitycode
Changes by:     Ludovic Courtès <civodul>       10/11/23 08:27:40

Modified files:
        .              : qualitycode.texi 

Log message:
        More on memory management.

CVSWeb URLs:
http://cvs.savannah.gnu.org/viewcvs/qualitycode/qualitycode.texi?cvsroot=womb&r1=1.4&r2=1.5

Patches:
Index: qualitycode.texi
===================================================================
RCS file: /sources/womb/qualitycode/qualitycode.texi,v
retrieving revision 1.4
retrieving revision 1.5
diff -u -b -r1.4 -r1.5
--- qualitycode.texi    19 Nov 2010 22:40:53 -0000      1.4
+++ qualitycode.texi    23 Nov 2010 08:27:36 -0000      1.5
@@ -1,5 +1,5 @@
 \input texinfo   @c -*-texinfo-*-
address@hidden $Id: qualitycode.texi,v 1.4 2010/11/19 22:40:53 karl Exp $
address@hidden $Id: qualitycode.texi,v 1.5 2010/11/23 08:27:36 civodul Exp $
 @comment %**start of header
 @setfilename qualitycode.info
 @set UPDATED 18 November 2010
@@ -97,6 +97,11 @@
 way.  With the @code{--leak-check=full} option, Valgrind and
 @code{memcheck} also report memory leaks.
 
+Valgrind's @url{http://valgrind.org@/docs/manual@/dh-manual.html,
+dynamic heap analysis tool} (DHAT) can be used to find out
+process-lifetime leaks (i.e., steady heap allocations that get freed
+only at program exit) as well as unused memory regions.
+
 Valgrind has the advantage that applications do not need to be
 recompiled or relinked.  However, since Valgrind is a hardware
 simulator, it runs programs 20 to 100 times more slowly than the raw
@@ -143,6 +148,11 @@
 @node C library support
 @section C library support
 
+The GNU C Library provides debugging facilities for heap memory
+management issues.  They can be used for any applications that use
address@hidden and related functions from the C library without having to
+recompile or relink them, and they incur little overhead at run time.
+
 @c FIXME: Incomplete.
 @itemize
 @item
@@ -154,6 +164,10 @@
 @code{MALLOC_PERTURB_}, which can be used to force initialization of the
 heap to a given value, thereby helping find out accesses to
 uninitialized memory regions.
+
address@hidden
+The (undocumented) @code{memusage.sh} script allows heap usage to be
+profiled, thus helping find out memory leaks.
 @end itemize