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Re: Memory debuggers for MacOS 10.3.9

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Re: Memory debuggers for MacOS 10.3.9

Subject: Re: Memory debuggers for MacOS 10.3.9
From: "D. Walsh" <email@hidden>
Date: Thu, 27 Oct 2005 06:04:35 -0400
Mta-interface: amavisd-new-2.3.3 (20050822) at daleenterprise.com


On Oct 27, 2005, at 04:53 , D. Walsh wrote:

On Oct 27, 2005, at 04:01 , Jonas Maebe wrote:
On 27 Oct 2005, at 00:00, Mark Wagner wrote:
 I don't happen to have access to 10.4, so are there any
memory debuggers that work on 10.3.9?
You could try electric fence, it's similar to GuardMalloc:
   http://perens.com/FreeSoftware/ElectricFence/
I've never tried it under OS X, but don't see why it wouldn't work.
Jonas
I looked at this before, it doesn't build in Mac OSX unless you comment out line 33 of page.c but then it still failed so digging deeper into the source I determined that it required a switch.

I've since added a configure/makefile wrapper around it to make building easier, I'd pass it along to the author but he never responded so I left it at that.

Here's the session of my attempts to build with failure and success, and yes, it even builds using gcc 4.0.
FAIL:
mustangrestomods:/SourceCache/electric-fence-2.1.13 root# make cc -g -c -o efence.o efence.c cc -g -c -o page.o page.c page.c:33: error: conflicting types for `sys_nerr' /usr/include/stdio.h:273: error: previous declaration of `sys_nerr' make: *** [page.o] Error 1 mustangrestomods:/SourceCache/electric-fence-2.1.13 root# make clean rm -f efence.o page.o print.o tstheap.o eftest.o tstheap eftest libefence.a \ libefence.cat ElectricFence.shar mustangrestomods:/SourceCache/electric-fence-2.1.13 root#
I commented out line 33 of page.c and and added a switch to the make command
SUCCESS:
mustangrestomods:/SourceCache/electric-fence-2.1.13 root# gcc_select Current default compiler: gcc version 3.3 20030304 (Apple Computer, Inc. build 1809) mustangrestomods:/SourceCache/electric-fence-2.1.13 root# make CFLAGS="-g -DPAGE_PROTECTION_VIOLATED_SIGNAL=SIGBUS" cc -g -DPAGE_PROTECTION_VIOLATED_SIGNAL=SIGBUS -c -o efence.o efence.c cc -g -DPAGE_PROTECTION_VIOLATED_SIGNAL=SIGBUS -c -o page.o page.c cc -g -DPAGE_PROTECTION_VIOLATED_SIGNAL=SIGBUS -c -o print.o print.c rm -f libefence.a ar crv libefence.a efence.o page.o print.o a - efence.o a - page.o a - print.o cc -g -DPAGE_PROTECTION_VIOLATED_SIGNAL=SIGBUS -c -o tstheap.o tstheap.c rm -f tstheap cc -g -DPAGE_PROTECTION_VIOLATED_SIGNAL=SIGBUS tstheap.o libefence.a -o tstheap -lpthread ld: warning multiple definitions of symbol _calloc libefence.a(efence.o) definition of _calloc in section (__TEXT,__text) /usr/lib/libpthread.dylib(malloc.So) definition of _calloc ld: warning multiple definitions of symbol _free libefence.a(efence.o) definition of _free in section (__TEXT,__text) /usr/lib/libpthread.dylib(malloc.So) definition of _free ld: warning multiple definitions of symbol _valloc libefence.a(efence.o) definition of _valloc in section (__TEXT,__text) /usr/lib/libpthread.dylib(malloc.So) definition of _valloc ld: warning multiple definitions of symbol _malloc libefence.a(efence.o) definition of _malloc in section (__TEXT,__text) /usr/lib/libpthread.dylib(malloc.So) definition of _malloc ld: warning multiple definitions of symbol _realloc libefence.a(efence.o) definition of _realloc in section (__TEXT,__text) /usr/lib/libpthread.dylib(malloc.So) definition of _realloc cc -g -DPAGE_PROTECTION_VIOLATED_SIGNAL=SIGBUS -c -o eftest.o eftest.c rm -f eftest cc -g -DPAGE_PROTECTION_VIOLATED_SIGNAL=SIGBUS eftest.o libefence.a -o eftest -lpthread ld: warning multiple definitions of symbol _calloc libefence.a(efence.o) definition of _calloc in section (__TEXT,__text) /usr/lib/libpthread.dylib(malloc.So) definition of _calloc ld: warning multiple definitions of symbol _free libefence.a(efence.o) definition of _free in section (__TEXT,__text) /usr/lib/libpthread.dylib(malloc.So) definition of _free ld: warning multiple definitions of symbol _valloc libefence.a(efence.o) definition of _valloc in section (__TEXT,__text) /usr/lib/libpthread.dylib(malloc.So) definition of _valloc ld: warning multiple definitions of symbol _malloc libefence.a(efence.o) definition of _malloc in section (__TEXT,__text) /usr/lib/libpthread.dylib(malloc.So) definition of _malloc ld: warning multiple definitions of symbol _realloc libefence.a(efence.o) definition of _realloc in section (__TEXT,__text) /usr/lib/libpthread.dylib(malloc.So) definition of _realloc
Testing Electric Fence.
After the last test, it should print that the test has PASSED.
./eftest
  Electric Fence 2.1 Copyright (C) 1987-1998 Bruce Perens.
./tstheap 3072
  Electric Fence 2.1 Copyright (C) 1987-1998 Bruce Perens.
Electric Fence confidence test PASSED.
mustangrestomods:/SourceCache/electric-fence-2.1.13 root#
SUCCESS:
mustangrestomods:/SourceCache/electric-fence-2.1.13 root# gcc_select 4.0 Default compiler has been set to: gcc version 4.0.0 (Apple Computer, Inc. build 5026) mustangrestomods:/SourceCache/electric-fence-2.1.13 root# make clean rm -f efence.o page.o print.o tstheap.o eftest.o tstheap eftest libefence.a \ libefence.cat ElectricFence.shar mustangrestomods:/SourceCache/electric-fence-2.1.13 root# make CFLAGS="-g -DPAGE_PROTECTION_VIOLATED_SIGNAL=SIGBUS" cc -g -DPAGE_PROTECTION_VIOLATED_SIGNAL=SIGBUS -c -o efence.o efence.c cc -g -DPAGE_PROTECTION_VIOLATED_SIGNAL=SIGBUS -c -o page.o page.c cc -g -DPAGE_PROTECTION_VIOLATED_SIGNAL=SIGBUS -c -o print.o print.c rm -f libefence.a ar crv libefence.a efence.o page.o print.o a - efence.o a - page.o a - print.o cc -g -DPAGE_PROTECTION_VIOLATED_SIGNAL=SIGBUS -c -o tstheap.o tstheap.c rm -f tstheap cc -g -DPAGE_PROTECTION_VIOLATED_SIGNAL=SIGBUS tstheap.o libefence.a -o tstheap -lpthread /usr/bin/ld: warning multiple definitions of symbol _calloc libefence.a(efence.o) definition of _calloc in section (__TEXT,__text) /usr/lib/gcc/powerpc-apple-darwin8/4.0.0/../../../libpthread.dylib (malloc.So) definition of _calloc /usr/bin/ld: warning multiple definitions of symbol _free libefence.a(efence.o) definition of _free in section (__TEXT,__text) /usr/lib/gcc/powerpc-apple-darwin8/4.0.0/../../../libpthread.dylib (malloc.So) definition of _free /usr/bin/ld: warning multiple definitions of symbol _valloc libefence.a(efence.o) definition of _valloc in section (__TEXT,__text) /usr/lib/gcc/powerpc-apple-darwin8/4.0.0/../../../libpthread.dylib (malloc.So) definition of _valloc /usr/bin/ld: warning multiple definitions of symbol _malloc libefence.a(efence.o) definition of _malloc in section (__TEXT,__text) /usr/lib/gcc/powerpc-apple-darwin8/4.0.0/../../../libpthread.dylib (malloc.So) definition of _malloc /usr/bin/ld: warning multiple definitions of symbol _realloc libefence.a(efence.o) definition of _realloc in section (__TEXT,__text) /usr/lib/gcc/powerpc-apple-darwin8/4.0.0/../../../libpthread.dylib (malloc.So) definition of _realloc cc -g -DPAGE_PROTECTION_VIOLATED_SIGNAL=SIGBUS -c -o eftest.o eftest.c rm -f eftest cc -g -DPAGE_PROTECTION_VIOLATED_SIGNAL=SIGBUS eftest.o libefence.a -o eftest -lpthread /usr/bin/ld: warning multiple definitions of symbol _calloc libefence.a(efence.o) definition of _calloc in section (__TEXT,__text) /usr/lib/gcc/powerpc-apple-darwin8/4.0.0/../../../libpthread.dylib (malloc.So) definition of _calloc /usr/bin/ld: warning multiple definitions of symbol _free libefence.a(efence.o) definition of _free in section (__TEXT,__text) /usr/lib/gcc/powerpc-apple-darwin8/4.0.0/../../../libpthread.dylib (malloc.So) definition of _free /usr/bin/ld: warning multiple definitions of symbol _valloc libefence.a(efence.o) definition of _valloc in section (__TEXT,__text) /usr/lib/gcc/powerpc-apple-darwin8/4.0.0/../../../libpthread.dylib (malloc.So) definition of _valloc /usr/bin/ld: warning multiple definitions of symbol _malloc libefence.a(efence.o) definition of _malloc in section (__TEXT,__text) /usr/lib/gcc/powerpc-apple-darwin8/4.0.0/../../../libpthread.dylib (malloc.So) definition of _malloc /usr/bin/ld: warning multiple definitions of symbol _realloc libefence.a(efence.o) definition of _realloc in section (__TEXT,__text) /usr/lib/gcc/powerpc-apple-darwin8/4.0.0/../../../libpthread.dylib (malloc.So) definition of _realloc
Testing Electric Fence.
After the last test, it should print that the test has PASSED.
./eftest
  Electric Fence 2.1 Copyright (C) 1987-1998 Bruce Perens.
./tstheap 3072
  Electric Fence 2.1 Copyright (C) 1987-1998 Bruce Perens.
Electric Fence confidence test PASSED.
mustangrestomods:/SourceCache/electric-fence-2.1.13 root#

I forgot to mention the install commands and generating a shared library that is much easier to use.


As root user and in the efence srouce directory do the following:

mustangrestomods:/SourceCache/electric-fence-2.1.13 root# make LIB_INSTALL_DIR=/usr/local/lib MAN_INSTALL_DIR=/usr/share/man/man3 install

mustangrestomods:/SourceCache/electric-fence-2.1.13 root# cp efence.h /usr/local/include

mustangrestomods:/SourceCache/electric-fence-2.1.13 root# libtool - dynamic -o /usr/local/lib/libefence.2.1.13.dylib -lSystem - compatibility_version 1.0.0 -current_version 1.0.0 -arch_only ppc libefence.a

mustangrestomods:/SourceCache/electric-fence-2.1.13 root# (cd /usr/ local/lib && ln -sf libefence.2.1.13.dylib libefence.dylib)

mustangrestomods:/SourceCache/electric-fence-2.1.13 root# (cd /usr/ local/lib && ln -sf libefence.2.1.13.dylib libefence.2.dylib)


Now to check your work:

mustangrestomods:/SourceCache/electric-fence-2.1.13 root# otool -L / usr/local/lib/libefence.2.1.13.dylib/usr/local/lib/libefence. 2.1.13.dylib: /usr/local/lib/libefence.2.1.13.dylib (compatibility version 1.0.0, current version 1.0.0) /usr/lib/libSystem.B.dylib (compatibility version 1.0.0, current version 88.2.1) mustangrestomods:/SourceCache/electric-fence-2.1.13 root#

or if you're really looking for the solve-all, use: (my favorite solution for flexibility in 10.3.x and 10.4.x)

using gcc 3.3: libtool -dynamic -o /usr/local/lib/libefence.2.1.13.dylib -L/usr/lib - framework ApplicationServices -lgcc_s.1 -lcc_dynamic -lSystem_debug - compatibility_version 1.0.0 -current_version 1.0.0 -arch_only ppc libefence.a

using gcc 4.0: libtool -dynamic -o /usr/local/lib/libefence.2.1.13.dylib -L/usr/lib - framework ApplicationServices -lgcc_s.1 -lSystemStubs_debug - lSystem_debug -compatibility_version 1.0.0 -current_version 1.0.0 - arch_only ppc libefence.a

mustangrestomods:/SourceCache/electric-fence-2.1.13 root# otool -L / usr/local/lib/libefence.2.1.13.dylib/usr/local/lib/libefence. 2.1.13.dylib: /usr/local/lib/libefence.2.1.13.dylib (compatibility version 1.0.0, current version 1.0.0) /System/Library/Frameworks/ApplicationServices.framework/ Versions/A/ApplicationServices (compatibility version 1.0.0, current version 22.0.0) /usr/lib/libSystem.B.dylib (compatibility version 1.0.0, current version 88.2.1) mustangrestomods:/SourceCache/electric-fence-2.1.13 root#


-- Dale

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References:  
  >Memory debuggers for MacOS 10.3.9 (From: Mark Wagner <email@hidden>)
  >Re: Memory debuggers for MacOS 10.3.9 (From: Jonas Maebe <email@hidden>)
  >Re: Memory debuggers for MacOS 10.3.9 (From: "D. Walsh" <email@hidden>)




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