ptmalloc src code

glibc/malloc/Depend

@@ -0,0 +1 @@
+dlfcn

glibc/malloc/Makefile

@@ -0,0 +1,161 @@
+# Copyright (C) 1991-2014 Free Software Foundation, Inc.
+# This file is part of the GNU C Library.
+
+# The GNU C Library is free software; you can redistribute it and/or
+# modify it under the terms of the GNU Lesser General Public
+# License as published by the Free Software Foundation; either
+# version 2.1 of the License, or (at your option) any later version.
+
+# The GNU C Library is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+# Lesser General Public License for more details.
+
+# You should have received a copy of the GNU Lesser General Public
+# License along with the GNU C Library; if not, see
+# <http://www.gnu.org/licenses/>.
+
+#
+#	Makefile for malloc routines
+#
+subdir	:= malloc
+
+include ../Makeconfig
+
+dist-headers := malloc.h
+headers := $(dist-headers) obstack.h mcheck.h
+tests := mallocbug tst-malloc tst-valloc tst-calloc tst-obstack \
+	 tst-mallocstate tst-mcheck tst-mallocfork tst-trim1 \
+	 tst-malloc-usable tst-realloc tst-posix_memalign \
+	 tst-pvalloc tst-memalign tst-mallopt
+test-srcs = tst-mtrace
+
+routines = malloc morecore mcheck mtrace obstack
+
+CFLAGS-malloc.c = -g -O0
+CFLAGS-morecore.c = -g -O0
+CFLAGS-mcheck.c = -g -O0
+CFLAGS-mtrace.c = -g -O0
+CFLAGS-obstack.c = -g -O0
+
+install-lib := libmcheck.a
+non-lib.a := libmcheck.a
+
+# Additional library.
+extra-libs = libmemusage
+extra-libs-others = $(extra-libs)
+
+libmemusage-routines = memusage
+libmemusage-inhibit-o = $(filter-out .os,$(object-suffixes))
+
+# These should be removed by `make clean'.
+extra-objs = mcheck-init.o libmcheck.a
+
+# Include the cleanup handler.
+aux := set-freeres thread-freeres
+
+CPPFLAGS-memusagestat = -DNOT_IN_libc
+
+# The Perl script to analyze the output of the mtrace functions.
+ifneq ($(PERL),no)
+install-bin-script = mtrace
+generated += mtrace
+
+# The Perl script will print addresses and to do this nicely we must know
+# whether we are on a 32 or 64 bit machine.
+ifneq ($(findstring wordsize-32,$(config-sysdirs)),)
+address-width=10
+else
+address-width=18
+endif
+endif
+
+# Unless we get a test for the availability of libgd which also works
+# for cross-compiling we disable the memusagestat generation in this
+# situation.
+ifneq ($(cross-compiling),yes)
+# If the gd library is available we build the `memusagestat' program.
+ifneq ($(LIBGD),no)
+others: $(objpfx)memusage
+install-bin = memusagestat
+install-bin-script += memusage
+generated += memusagestat memusage
+extra-objs += memusagestat.o
+
+# The configure.ac check for libgd and its headers did not use $SYSINCLUDES.
+# The directory specified by --with-headers usually contains only the basic
+# kernel interface headers, not something like libgd.  So the simplest thing
+# is to presume that the standard system headers will be ok for this file.
+$(objpfx)memusagestat.o: sysincludes = # nothing
+endif
+endif
+
+# Another goal which can be used to override the configure decision.
+.PHONY: do-memusagestat
+do-memusagestat: $(objpfx)memusagestat
+
+memusagestat-modules = memusagestat
+$(objpfx)memusagestat: $(memusagestat-modules:%=$(objpfx)%.o)
+	$(LINK.o) -o $@ $^ $(libgd-LDFLAGS) -lgd -lpng -lz -lm
+
+ifeq ($(run-built-tests),yes)
+ifeq (yes,$(build-shared))
+ifneq ($(PERL),no)
+tests-special += $(objpfx)tst-mtrace.out
+endif
+endif
+endif
+
+include ../Rules
+
+CFLAGS-mcheck-init.c = $(PIC-ccflag)
+CFLAGS-obstack.c = $(uses-callbacks)
+
+$(objpfx)libmcheck.a: $(objpfx)mcheck-init.o
+	-rm -f $@
+	$(patsubst %/,cd % &&,$(objpfx)) \
+	$(LN_S) $(<F) $(@F)
+
+lib: $(objpfx)libmcheck.a
+
+ifeq ($(run-built-tests),yes)
+ifeq (yes,$(build-shared))
+ifneq ($(PERL),no)
+$(objpfx)tst-mtrace.out: tst-mtrace.sh $(objpfx)tst-mtrace
+	$(SHELL) $< $(common-objpfx) '$(test-program-prefix-before-env)' \
+		 '$(run-program-env)' '$(test-program-prefix-after-env)' ; \
+	$(evaluate-test)
+endif
+endif
+endif
+
+tst-mcheck-ENV = MALLOC_CHECK_=3
+tst-malloc-usable-ENV = MALLOC_CHECK_=3
+
+# Uncomment this for test releases.  For public releases it is too expensive.
+#CPPFLAGS-malloc.o += -DMALLOC_DEBUG=1
+
+sLIBdir := $(shell echo $(slibdir) | sed 's,lib\(\|64\)$$,\\\\$$LIB,')
+
+$(objpfx)mtrace: mtrace.pl
+	rm -f $@.new
+	sed -e 's|@PERL@|$(PERL)|' -e 's|@XXX@|$(address-width)|' \
+	    -e 's|@VERSION@|$(version)|' \
+	    -e 's|@PKGVERSION@|$(PKGVERSION)|' \
+	    -e 's|@REPORT_BUGS_TO@|$(REPORT_BUGS_TO)|' $^ > $@.new \
+	&& rm -f $@ && mv $@.new $@ && chmod +x $@
+
+$(objpfx)memusage: memusage.sh
+	rm -f $@.new
+	sed -e 's|@BASH@|$(BASH)|' -e 's|@VERSION@|$(version)|' \
+	    -e 's|@SLIBDIR@|$(sLIBdir)|' -e 's|@BINDIR@|$(bindir)|' \
+	    -e 's|@PKGVERSION@|$(PKGVERSION)|' \
+	    -e 's|@REPORT_BUGS_TO@|$(REPORT_BUGS_TO)|' $^ > $@.new \
+	&& rm -f $@ && mv $@.new $@ && chmod +x $@
+
+
+# The implementation uses `dlsym'
+$(objpfx)libmemusage.so: $(libdl)
+
+# Extra dependencies
+$(foreach o,$(all-object-suffixes),$(objpfx)malloc$(o)): arena.c hooks.c

glibc/malloc/Versions

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+libc {
+  GLIBC_2.0 {
+    # global variables
+    _obstack;
+
+    # interface of malloc functions
+    __libc_calloc; __libc_free; __libc_mallinfo; __libc_malloc;
+    __libc_mallopt; __libc_memalign; __libc_pvalloc; __libc_realloc;
+    __libc_valloc;
+    __malloc_initialize_hook; __free_hook; __malloc_hook; __realloc_hook;
+    __memalign_hook; __after_morecore_hook;
+    __malloc_initialized; __default_morecore; __morecore;
+
+    # functions used in inline functions or macros
+    _obstack_allocated_p; _obstack_begin; _obstack_begin_1;
+    _obstack_free; _obstack_memory_used; _obstack_newchunk;
+
+    # variables in normal name space
+    mallwatch; obstack_alloc_failed_handler; obstack_exit_failure;
+
+    # c*
+    calloc; cfree;
+
+    # f*
+    free;
+
+    # m*
+    mallinfo; malloc; malloc_get_state; malloc_set_state; malloc_stats;
+    malloc_trim; malloc_usable_size; mallopt; memalign; mprobe; mtrace;
+    muntrace;
+
+    # o*
+    obstack_free;
+
+    # p*
+    pvalloc;
+
+    # r*
+    realloc;
+
+    # t*
+    tr_break;
+
+    # v*
+    valloc;
+  }
+  GLIBC_2.1 {
+    # Special functions.
+    __libc_freeres;
+  }
+  GLIBC_2.2 {
+    # m*
+    mcheck_check_all; mcheck_pedantic;
+
+    # p*
+    posix_memalign;
+  }
+  GLIBC_2.10 {
+    malloc_info;
+  }
+  GLIBC_2.16 {
+    aligned_alloc;
+  }
+  GLIBC_PRIVATE {
+    # Internal startup hook for libpthread.
+    __libc_malloc_pthread_startup;
+
+    # Internal destructor hook for libpthread.
+    __libc_thread_freeres;
+  }
+}