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[rfa] delete more mmalloc remnants


This patch deletes more remnants of --with-mmalloc.

I tested this by building on native i686-pc-linux-gnu and
running the "break main; run" test.

I need several approvals for this, including a doco approval.

Okay to commit?

Michael C

2004-01-19  Michael Chastain  <mec.gnu@mindspring.com>

	* MAINTAINERS: Delete mmalloc.
	* Makefile.in: Delete MMALLOC, MMALLOC_CFLAGS, -lmmalloc, mmalloc_h.
	* NEWS: Mention removal of --with-malloc.
	* acconfig.h: Delete USE_MMALLOC, MMCHECK_FORCE.
	* config.in: Regenerate.
	* configure: Regenerate.
	* configure.in: Delete MMALLOC_CFLAGS, MMALLOC, --with-mmalloc, USE_MMALLOC, MMCHECK_FORCE.
	* gdbinit.in: Remove mmalloc.
	* utils.c: Delete USE_MMALLOC, NO_MMCHECK, MMCHECK_FORCE, malloc_botch.
	* config/alpha/alpha-linux.mh: Delete MMALLOC, MMALLOC_CFLAGS.
	* config/i386/go32.mh: Likewise.
	* config/i386/interix.mh: Likewise.
	* config/powerpc/xm-linux.h: Delete MMAP_BASE_ADDRESS, MMAP_INCREMENT.

2004-01-19  Michael Chastain  <mec.gnu@mindspring.com>

	* gdbint.texinfo: Delete USE_MMALLOC, NO_MMCHECK, MMCHECK_FORCE,
	MMAP_BASE_ADDRESS, MMAP_INCREMENT.

Index: MAINTAINERS
===================================================================
RCS file: /cvs/src/src/gdb/MAINTAINERS,v
retrieving revision 1.258
diff -c -3 -p -r1.258 MAINTAINERS
*** MAINTAINERS	4 Jan 2004 15:27:24 -0000	1.258
--- MAINTAINERS	19 Jan 2004 22:17:56 -0000
*************** support - typically shared libraries and
*** 174,181 ****
  The Native maintainer works with the Arch and Core maintainers when
  resolving more generic problems.
  
! The host maintainer ensures that gdb (including mmalloc) can be built
! as a cross debugger on their platform.
  
  AIX			Peter Schauer		Peter.Schauer@regent.e-technik.tu-muenchen.de
  			Kevin Buettner		kevinb@redhat.com
--- 174,181 ----
  The Native maintainer works with the Arch and Core maintainers when
  resolving more generic problems.
  
! The host maintainer ensures that gdb can be built as a cross debugger on
! their platform.
  
  AIX			Peter Schauer		Peter.Schauer@regent.e-technik.tu-muenchen.de
  			Kevin Buettner		kevinb@redhat.com
Index: Makefile.in
===================================================================
RCS file: /cvs/src/src/gdb/Makefile.in,v
retrieving revision 1.478
diff -c -3 -p -r1.478 Makefile.in
*** Makefile.in	19 Jan 2004 04:31:49 -0000	1.478
--- Makefile.in	19 Jan 2004 22:17:56 -0000
*************** INCLUDE_CFLAGS = -I$(INCLUDE_DIR)
*** 106,115 ****
  # Where is the "-liberty" library?  Typically in ../libiberty.
  LIBIBERTY = ../libiberty/libiberty.a
  
- # Configured by the --with-mmalloc option to configure.
- MMALLOC = @MMALLOC@
- MMALLOC_CFLAGS = @MMALLOC_CFLAGS@
- 
  # Where is the BFD library?  Typically in ../bfd.
  BFD_DIR = ../bfd
  BFD = $(BFD_DIR)/libbfd.a
--- 106,111 ----
*************** CXXFLAGS = -g -O
*** 364,370 ****
  INTERNAL_WARN_CFLAGS = \
  	$(CFLAGS) $(GLOBAL_CFLAGS) $(PROFILE_CFLAGS) \
  	$(GDB_CFLAGS) $(OPCODES_CFLAGS) $(READLINE_CFLAGS) \
! 	$(BFD_CFLAGS) $(MMALLOC_CFLAGS) $(INCLUDE_CFLAGS) \
  	$(INTL_CFLAGS) $(ENABLE_CFLAGS) \
  	$(GDB_WARN_CFLAGS)
  INTERNAL_CFLAGS = $(INTERNAL_WARN_CFLAGS) $(GDB_WERROR_CFLAGS)
--- 360,366 ----
  INTERNAL_WARN_CFLAGS = \
  	$(CFLAGS) $(GLOBAL_CFLAGS) $(PROFILE_CFLAGS) \
  	$(GDB_CFLAGS) $(OPCODES_CFLAGS) $(READLINE_CFLAGS) \
! 	$(BFD_CFLAGS) $(INCLUDE_CFLAGS) \
  	$(INTL_CFLAGS) $(ENABLE_CFLAGS) \
  	$(GDB_WARN_CFLAGS)
  INTERNAL_CFLAGS = $(INTERNAL_WARN_CFLAGS) $(GDB_WERROR_CFLAGS)
*************** INTERNAL_LDFLAGS = $(CFLAGS) $(GLOBAL_CF
*** 384,402 ****
  
  # Libraries and corresponding dependencies for compiling gdb.
  # {X,T}M_CLIBS, defined in *config files, have host- and target-dependent libs.
- # MMALLOC comes after anything else that might want an allocation function.
  # LIBIBERTY appears twice on purpose.
  # If you have the Cygnus libraries installed,
  # you can use 'CLIBS=$(INSTALLED_LIBS)' 'CDEPS='
  INSTALLED_LIBS=-lbfd -lreadline -lopcodes -liberty \
  	$(XM_CLIBS) $(TM_CLIBS) $(NAT_CLIBS) $(GDBTKLIBS) @LIBS@ \
! 	-lmmalloc -lintl -liberty
  CLIBS = $(SIM) $(BFD) $(READLINE) $(OPCODES) $(INTL) $(LIBIBERTY) \
  	$(XM_CLIBS) $(TM_CLIBS) $(NAT_CLIBS) $(GDBTKLIBS) @LIBS@ \
  	$(LIBICONV) \
! 	$(MMALLOC) $(LIBIBERTY) $(WIN32LIBS)
  CDEPS = $(XM_CDEPS) $(TM_CDEPS) $(NAT_CDEPS) $(SIM) $(BFD) $(READLINE) \
! 	$(OPCODES) $(MMALLOC) $(INTL_DEPS) $(LIBIBERTY) $(CONFIG_DEPS)
  
  ADD_FILES = $(XM_ADD_FILES) $(TM_ADD_FILES) $(NAT_ADD_FILES)
  ADD_DEPS = $(XM_ADD_FILES) $(TM_ADD_FILES) $(NAT_ADD_FILES)
--- 380,397 ----
  
  # Libraries and corresponding dependencies for compiling gdb.
  # {X,T}M_CLIBS, defined in *config files, have host- and target-dependent libs.
  # LIBIBERTY appears twice on purpose.
  # If you have the Cygnus libraries installed,
  # you can use 'CLIBS=$(INSTALLED_LIBS)' 'CDEPS='
  INSTALLED_LIBS=-lbfd -lreadline -lopcodes -liberty \
  	$(XM_CLIBS) $(TM_CLIBS) $(NAT_CLIBS) $(GDBTKLIBS) @LIBS@ \
! 	-lintl -liberty
  CLIBS = $(SIM) $(BFD) $(READLINE) $(OPCODES) $(INTL) $(LIBIBERTY) \
  	$(XM_CLIBS) $(TM_CLIBS) $(NAT_CLIBS) $(GDBTKLIBS) @LIBS@ \
  	$(LIBICONV) \
! 	$(LIBIBERTY) $(WIN32LIBS)
  CDEPS = $(XM_CDEPS) $(TM_CDEPS) $(NAT_CDEPS) $(SIM) $(BFD) $(READLINE) \
! 	$(OPCODES) $(INTL_DEPS) $(LIBIBERTY) $(CONFIG_DEPS)
  
  ADD_FILES = $(XM_ADD_FILES) $(TM_ADD_FILES) $(NAT_ADD_FILES)
  ADD_DEPS = $(XM_ADD_FILES) $(TM_ADD_FILES) $(NAT_ADD_FILES)
*************** DIST=gdb
*** 405,411 ****
  
  LINT=/usr/5bin/lint
  LINTFLAGS= $(GDB_CFLAGS) $(OPCODES_CFLAGS) $(READLINE_CFLAGS) \
! 	$(BFD_CFLAGS) $(MMALLOC_CFLAGS) $(INCLUDE_CFLAGS) \
  	$(INTL_CFLAGS)
  
  RUNTEST = `if [ -f $${rootsrc}/../dejagnu/runtest ] ; then \
--- 400,406 ----
  
  LINT=/usr/5bin/lint
  LINTFLAGS= $(GDB_CFLAGS) $(OPCODES_CFLAGS) $(READLINE_CFLAGS) \
! 	$(BFD_CFLAGS) $(INCLUDE_CFLAGS) \
  	$(INTL_CFLAGS)
  
  RUNTEST = `if [ -f $${rootsrc}/../dejagnu/runtest ] ; then \
*************** objc-lang.o: objc-lang.c $(defs_h) $(sym
*** 2134,2140 ****
  objfiles.o: objfiles.c $(defs_h) $(bfd_h) $(symtab_h) $(symfile_h) \
  	$(objfiles_h) $(gdb_stabs_h) $(target_h) $(bcache_h) $(gdb_assert_h) \
  	$(gdb_stat_h) $(gdb_obstack_h) $(gdb_string_h) $(hashtab_h) \
! 	$(breakpoint_h) $(block_h) $(dictionary_h) $(mmalloc_h)
  observer.o: observer.c $(defs_h) $(observer_h)
  ocd.o: ocd.c $(defs_h) $(gdbcore_h) $(gdb_string_h) $(frame_h) $(inferior_h) \
  	$(bfd_h) $(symfile_h) $(target_h) $(gdbcmd_h) $(objfiles_h) \
--- 2129,2135 ----
  objfiles.o: objfiles.c $(defs_h) $(bfd_h) $(symtab_h) $(symfile_h) \
  	$(objfiles_h) $(gdb_stabs_h) $(target_h) $(bcache_h) $(gdb_assert_h) \
  	$(gdb_stat_h) $(gdb_obstack_h) $(gdb_string_h) $(hashtab_h) \
! 	$(breakpoint_h) $(block_h) $(dictionary_h)
  observer.o: observer.c $(defs_h) $(observer_h)
  ocd.o: ocd.c $(defs_h) $(gdbcore_h) $(gdb_string_h) $(frame_h) $(inferior_h) \
  	$(bfd_h) $(symfile_h) $(target_h) $(gdbcmd_h) $(objfiles_h) \
*************** user-regs.o: user-regs.c $(defs_h) $(use
*** 2467,2473 ****
  utils.o: utils.c $(defs_h) $(gdb_assert_h) $(gdb_string_h) $(event_top_h) \
  	$(gdbcmd_h) $(serial_h) $(bfd_h) $(target_h) $(demangle_h) \
  	$(expression_h) $(language_h) $(charset_h) $(annotate_h) \
! 	$(filenames_h) $(inferior_h) $(mmalloc_h)
  uw-thread.o: uw-thread.c $(defs_h) $(gdbthread_h) $(target_h) $(inferior_h) \
  	$(regcache_h) $(gregset_h)
  v850ice.o: v850ice.c $(defs_h) $(gdb_string_h) $(frame_h) $(symtab_h) \
--- 2462,2468 ----
  utils.o: utils.c $(defs_h) $(gdb_assert_h) $(gdb_string_h) $(event_top_h) \
  	$(gdbcmd_h) $(serial_h) $(bfd_h) $(target_h) $(demangle_h) \
  	$(expression_h) $(language_h) $(charset_h) $(annotate_h) \
! 	$(filenames_h) $(inferior_h)
  uw-thread.o: uw-thread.c $(defs_h) $(gdbthread_h) $(target_h) $(inferior_h) \
  	$(regcache_h) $(gregset_h)
  v850ice.o: v850ice.c $(defs_h) $(gdb_string_h) $(frame_h) $(symtab_h) \
Index: NEWS
===================================================================
RCS file: /cvs/src/src/gdb/NEWS,v
retrieving revision 1.132
diff -c -3 -p -r1.132 NEWS
*** NEWS	11 Jan 2004 17:00:38 -0000	1.132
--- NEWS	19 Jan 2004 22:17:57 -0000
***************
*** 3,8 ****
--- 3,13 ----
  
  *** Changes since GDB 6.0:
  
+ * Removed --with-mmalloc
+ 
+ Support for the mmalloc memory manager has been removed, as it
+ conflicted with the internal gdb byte cache.
+ 
  * Changes in AMD64 configurations
  
  The AMD64 target now includes the %cs and %ss registers.  As a result
Index: acconfig.h
===================================================================
RCS file: /cvs/src/src/gdb/acconfig.h,v
retrieving revision 1.27
diff -c -3 -p -r1.27 acconfig.h
*** acconfig.h	30 Dec 2003 10:33:37 -0000	1.27
--- acconfig.h	19 Jan 2004 22:17:57 -0000
***************
*** 108,122 ****
  /* Define if you have HPUX threads */
  #undef HAVE_HPUX_THREAD_SUPPORT
  
- /* Define if you want to use the memory mapped malloc package (mmalloc). */
- #undef USE_MMALLOC
- 
- /* Define if the runtime uses a routine from mmalloc before gdb has a chance
-    to initialize mmalloc, and we want to force checking to be used anyway.
-    This may cause spurious memory corruption messages if the runtime tries
-    to explicitly deallocate that memory when gdb calls exit. */
- #undef MMCHECK_FORCE
- 
  /* Define to 1 if NLS is requested.  */
  #undef ENABLE_NLS
  
--- 108,113 ----
Index: configure.in
===================================================================
RCS file: /cvs/src/src/gdb/configure.in,v
retrieving revision 1.139
diff -c -3 -p -r1.139 configure.in
*** configure.in	13 Jan 2004 17:06:36 -0000	1.139
--- configure.in	19 Jan 2004 22:17:59 -0000
*************** fi
*** 1082,1107 ****
  AC_SUBST(WARN_CFLAGS)
  AC_SUBST(WERROR_CFLAGS)
  
- MMALLOC_CFLAGS=
- MMALLOC=
- AC_SUBST(MMALLOC_CFLAGS)
- AC_SUBST(MMALLOC)
- 
- AC_ARG_WITH(mmalloc,
- [  --with-mmalloc          Use memory mapped malloc package],
- [case "${withval}" in
-   yes)  want_mmalloc=true ;;
-   no)   want_mmalloc=false;;
-   *)    AC_MSG_ERROR(bad value ${withval} for GDB with-mmalloc option) ;;
- esac],[want_mmalloc=false])dnl
- 
- if test x$want_mmalloc = xtrue; then
-    AC_DEFINE(USE_MMALLOC)
-    AC_DEFINE(MMCHECK_FORCE)
-    MMALLOC_CFLAGS="-I$srcdir/../mmalloc"
-    MMALLOC='../mmalloc/libmmalloc.a'
- fi
- 
  # In the Cygwin environment, we need some additional flags.
  AC_CACHE_CHECK([for cygwin], gdb_cv_os_cygwin,
  [AC_EGREP_CPP(lose, [
--- 1082,1087 ----
Index: gdbinit.in
===================================================================
RCS file: /cvs/src/src/gdb/gdbinit.in,v
retrieving revision 1.2
diff -c -3 -p -r1.2 gdbinit.in
*** gdbinit.in	30 Jul 2002 07:01:23 -0000	1.2
--- gdbinit.in	19 Jan 2004 22:17:59 -0000
*************** commands
*** 10,16 ****
  	return
  end
  
- dir @srcdir@/../mmalloc
  dir @srcdir@/../libiberty
  dir @srcdir@/../bfd
  dir @srcdir@
--- 10,15 ----
Index: utils.c
===================================================================
RCS file: /cvs/src/src/gdb/utils.c,v
retrieving revision 1.111
diff -c -3 -p -r1.111 utils.c
*** utils.c	2 Jan 2004 17:35:01 -0000	1.111
--- utils.c	19 Jan 2004 22:17:59 -0000
***************
*** 1,8 ****
  /* General utility routines for GDB, the GNU debugger.
  
     Copyright 1986, 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995,
!    1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003 Free Software
!    Foundation, Inc.
  
     This file is part of GDB.
  
--- 1,8 ----
  /* General utility routines for GDB, the GNU debugger.
  
     Copyright 1986, 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995,
!    1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004
!    Free Software Foundation, Inc.
  
     This file is part of GDB.
  
***************
*** 61,70 ****
  
  #include <readline/readline.h>
  
- #ifdef USE_MMALLOC
- #include "mmalloc.h"
- #endif
- 
  #ifdef NEED_DECLARATION_MALLOC
  extern PTR malloc ();		/* OK: PTR */
  #endif
--- 61,66 ----
*************** static void fputs_maybe_filtered (const 
*** 98,107 ****
  
  static void do_my_cleanups (struct cleanup **, struct cleanup *);
  
- #if defined (USE_MMALLOC) && !defined (NO_MMCHECK)
- static void malloc_botch (void);
- #endif
- 
  static void prompt_for_continue (void);
  
  static void set_screen_size (void);
--- 94,99 ----
*************** request_quit (int signo)
*** 961,968 ****
  
  /* Memory management stuff (malloc friends).  */
  
- #if !defined (USE_MMALLOC)
- 
  static void *
  mmalloc (void *md, size_t size)
  {
--- 953,958 ----
*************** mfree (void *md, void *ptr)
*** 990,1051 ****
    free (ptr);			/* NOTE: GDB's only call to free() */
  }
  
! #endif /* USE_MMALLOC */
! 
! #if !defined (USE_MMALLOC) || defined (NO_MMCHECK)
! 
! void
! init_malloc (void *md)
! {
! }
! 
! #else /* Have mmalloc and want corruption checking */
! 
! static void
! malloc_botch (void)
! {
!   fprintf_unfiltered (gdb_stderr, "Memory corruption\n");
!   internal_error (__FILE__, __LINE__, "failed internal consistency check");
! }
! 
! /* Attempt to install hooks in mmalloc/mrealloc/mfree for the heap specified
!    by MD, to detect memory corruption.  Note that MD may be NULL to specify
!    the default heap that grows via sbrk.
! 
!    Note that for freshly created regions, we must call mmcheckf prior to any
!    mallocs in the region.  Otherwise, any region which was allocated prior to
!    installing the checking hooks, which is later reallocated or freed, will
!    fail the checks!  The mmcheck function only allows initial hooks to be
!    installed before the first mmalloc.  However, anytime after we have called
!    mmcheck the first time to install the checking hooks, we can call it again
!    to update the function pointer to the memory corruption handler.
! 
!    Returns zero on failure, non-zero on success. */
! 
! #ifndef MMCHECK_FORCE
! #define MMCHECK_FORCE 0
! #endif
! 
  void
  init_malloc (void *md)
  {
-   if (!mmcheckf (md, malloc_botch, MMCHECK_FORCE))
-     {
-       /* Don't use warning(), which relies on current_target being set
-          to something other than dummy_target, until after
-          initialize_all_files(). */
- 
-       fprintf_unfiltered
- 	(gdb_stderr,
- 	 "warning: failed to install memory consistency checks; ");
-       fprintf_unfiltered (gdb_stderr,
- 			  "configuration should define NO_MMCHECK or MMCHECK_FORCE\n");
-     }
- 
-   mmtrace ();
  }
- 
- #endif /* Have mmalloc and want corruption checking  */
  
  /* Called when a memory allocation fails, with the number of bytes of
     memory requested in SIZE. */
--- 980,991 ----
    free (ptr);			/* NOTE: GDB's only call to free() */
  }
  
! /* This used to do something interesting with USE_MMALLOC.
!  * It can be retired any time.  -- chastain 2004-01-19.  */
  void
  init_malloc (void *md)
  {
  }
  
  /* Called when a memory allocation fails, with the number of bytes of
     memory requested in SIZE. */
Index: config/alpha/alpha-linux.mh
===================================================================
RCS file: /cvs/src/src/gdb/config/alpha/alpha-linux.mh,v
retrieving revision 1.11
diff -c -3 -p -r1.11 alpha-linux.mh
*** config/alpha/alpha-linux.mh	15 Jun 2003 20:56:47 -0000	1.11
--- config/alpha/alpha-linux.mh	19 Jan 2004 22:17:59 -0000
*************** NATDEPFILES= infptrace.o inftarg.o corel
*** 7,15 ****
  
  LOADLIBES = -ldl -rdynamic
  
- MMALLOC = 
- MMALLOC_CFLAGS = -DNO_MMALLOC 
- 
  # doublest.c currently assumes some properties of FP arithmetic
  # on the host which require this.
  MH_CFLAGS = -mieee
--- 7,12 ----
Index: config/i386/go32.mh
===================================================================
RCS file: /cvs/src/src/gdb/config/i386/go32.mh,v
retrieving revision 1.7
diff -c -3 -p -r1.7 go32.mh
*** config/i386/go32.mh	2 Jan 2003 16:54:56 -0000	1.7
--- config/i386/go32.mh	19 Jan 2004 22:17:59 -0000
***************
*** 1,8 ****
  # Host: Intel x86 running DJGPP
! # we don't need mmalloc on DJGPP
! MH_CFLAGS= -DNO_MMALLOC
! MMALLOC=
! MMALLOC_CFLAGS=
  
  XM_FILE= xm-go32.h
  
--- 1,5 ----
  # Host: Intel x86 running DJGPP
! MH_CFLAGS= 
  
  XM_FILE= xm-go32.h
  
Index: config/i386/interix.mh
===================================================================
RCS file: /cvs/src/src/gdb/config/i386/interix.mh,v
retrieving revision 1.1
diff -c -3 -p -r1.1 interix.mh
*** config/i386/interix.mh	1 Nov 2002 22:08:44 -0000	1.1
--- config/i386/interix.mh	19 Jan 2004 22:17:59 -0000
*************** NATDEPFILES= corelow.o core-regset.o for
*** 4,9 ****
  	procfs.o proc-api.o proc-events.o proc-flags.o proc-why.o
  NAT_FILE= nm-interix.h
  XM_FILE= xm-interix.h
- # The below may be temporary; mmalloc relies on sbrk() at the moment
- MMALLOC=
- MMALLOC_CFLAGS=-DNO_MMALLOC
--- 4,6 ----
Index: config/powerpc/xm-linux.h
===================================================================
RCS file: /cvs/src/src/gdb/config/powerpc/xm-linux.h,v
retrieving revision 1.8
diff -c -3 -p -r1.8 xm-linux.h
*** config/powerpc/xm-linux.h	2 Dec 2001 02:57:16 -0000	1.8
--- config/powerpc/xm-linux.h	19 Jan 2004 22:18:00 -0000
*************** Foundation, Inc., 59 Temple Place - Suit
*** 25,38 ****
     to get the offset in the core file of the register values.  */
  #define KERNEL_U_ADDR 0x0
  
- /* If you expect to use the mmalloc package to obtain mapped symbol files,
-    for now you have to specify some parameters that determine how gdb places
-    the mappings in it's address space.  See the comments in map_to_address()
-    for details.  This is expected to only be a short term solution.  Yes it
-    is a kludge.
-    FIXME:  Make this more automatic. */
- 
- #define MMAP_BASE_ADDRESS      0x20000000      /* First mapping here */
- #define MMAP_INCREMENT         0x01000000      /* Increment to next mapping */
- 
  #endif /* #ifndef XM_LINUX_H */
--- 25,28 ----
Index: doc/gdbint.texinfo
===================================================================
RCS file: /cvs/src/src/gdb/doc/gdbint.texinfo,v
retrieving revision 1.181
diff -c -3 -p -r1.181 gdbint.texinfo
*** doc/gdbint.texinfo	17 Jan 2004 21:56:00 -0000	1.181
--- doc/gdbint.texinfo	19 Jan 2004 22:18:02 -0000
*************** This macro is used as the argument to @c
*** 2238,2249 ****
  @code{bfd_seek}).  FIXME, should be replaced by SEEK_SET instead,
  which is the POSIX equivalent.
  
- @item MMAP_BASE_ADDRESS
- When using HAVE_MMAP, the first mapping should go at this address.
- 
- @item MMAP_INCREMENT
- when using HAVE_MMAP, this is the increment between mappings.
- 
  @item NORETURN
  If defined, this should be one or more tokens, such as @code{volatile},
  that can be used in both the declaration and definition of functions to
--- 2238,2243 ----
*************** If defined, this should be one or more t
*** 2256,2292 ****
  of functions to indicate that they never return.  The default is already
  set correctly if compiling with GCC.  This will almost never need to be
  defined.
- 
- @item USE_MMALLOC
- @findex mmalloc
- @value{GDBN} will use the @code{mmalloc} library for memory allocation
- for symbol reading if this symbol is defined.  Be careful defining it
- since there are systems on which @code{mmalloc} does not work for some
- reason.  One example is the DECstation, where its RPC library can't
- cope with our redefinition of @code{malloc} to call @code{mmalloc}.
- When defining @code{USE_MMALLOC}, you will also have to set
- @code{MMALLOC} in the Makefile, to point to the @code{mmalloc} library.  This
- define is set when you configure with @samp{--with-mmalloc}.
- 
- @item NO_MMCHECK
- @findex mmcheck
- Define this if you are using @code{mmalloc}, but don't want the overhead
- of checking the heap with @code{mmcheck}.  Note that on some systems,
- the C runtime makes calls to @code{malloc} prior to calling @code{main}, and if
- @code{free} is ever called with these pointers after calling
- @code{mmcheck} to enable checking, a memory corruption abort is certain
- to occur.  These systems can still use @code{mmalloc}, but must define
- @code{NO_MMCHECK}.
- 
- @item MMCHECK_FORCE
- Define this to 1 if the C runtime allocates memory prior to
- @code{mmcheck} being called, but that memory is never freed so we don't
- have to worry about it triggering a memory corruption abort.  The
- default is 0, which means that @code{mmcheck} will only install the heap
- checking functions if there has not yet been any memory allocation
- calls, and if it fails to install the functions, @value{GDBN} will issue a
- warning.  This is currently defined if you configure using
- @samp{--with-mmalloc}.
  
  @item NO_SIGINTERRUPT
  @findex siginterrupt
--- 2250,2255 ----


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