Fri Feb 04 15:54:31 2011 Google Inc. <opensource@google.com>

	* google-perftools: version 1.7 release
	* Reduce page map key size under x86_64 by 4.4MB (rus)
	* Remove a flaky malloc-extension test (fdabek)
	* Improve the performance of PageHeap::New (ond..., csilvers)
	* Improve sampling_test with no-inline additions/etc (fdabek)
	* 16-byte align debug allocs (jyasskin)
	* Change FillProcSelfMaps to detect out-of-buffer-space (csilvers)
	* Document the need for sampling to use GetHeapSample (csilvers)
	* Try to read TSC frequency from tsc_freq_khs (adurbin)
	* Do better at figuring out if tests are running under gdb (ppluzhnikov)
	* Improve spinlock contention performance (ruemmler)
	* Better internal-function list for pprof's /contention (ruemmler)
	* Speed up GoogleOnce (m3b)
	* Limit number of incoming/outgoing edges in pprof (sanjay)
	* Add pprof --evince to go along with --gv (csilvers)
	* Document the various ways to get heap-profiling information (csilvers)
	* Separate out synchronization profiling routines (ruemmler)
	* Improve malloc-stats output to be more understandable (csilvers)
	* Add support for census profiler in pporf (nabeelmian)
	* Document how pprof's /symbol must support GET requests (csilvers)
	* Improve acx_pthread.m4 (ssuomi, liujisi)
	* Speed up pprof's ExtractSymbols (csilvers)
	* Ignore some known-leaky (java) libraries in the heap checker (davidyu)
	* Make kHideMask use all 64 bits in tests (ppluzhnikov)
	* Clean up pprof input-file handling (csilvers)
	* BUGFIX: Don't crash if __environ is NULL (csilvers)
	* BUGFIX: Fix totally broken debugallocation tests (csilvers)
	* BUGFIX: Fix up fake_VDSO handling for unittest (ppluzhnikov)
	* BUGFIX: Suppress all large allocs when report threshold is 0 (lexie)
	* BUGFIX: mmap2 on i386 takes an off_t, not off64_t (csilvers)
	* PORTING: Add missing PERFTOOLS_DLL_DECL (csilvers)
	* PORTING: Add stddef.h to make newer gcc's happy (csilvers)
	* PORTING: Document some tricks for working under OS X (csilvers)
	* PORTING: Don't try to check valgrind for windows (csilvers)
	* PORTING: Make array-size a var to compile under clang (chandlerc)
	* PORTING: No longer hook _aligned_malloc and _aligned_free (csilvers)
	* PORTING: Quiet some gcc warnings (csilvers)
	* PORTING: Replace %PRIxPTR with %p to be more portable (csilvers)
	* PORTING: Support systems that capitalize /proc weirdly (sanek)
	* PORTING: Treat arm3 the same as arm5t in cycletimer (csilvers)
	* PORTING: Update windows logging to not allocate memory (csilvers)
	* PORTING: avoid double-patching newer windows DLLs (roger.orr)
	* PORTING: get dynamic_annotations.c to work on windows (csilvers)
	* Add pkg-config .pc files for the 5 libraries we produce (csilvers)
	* Added proper libtool versioning, so this lib will be 0.1.0 (csilvers)
	* Moved from autoconf 2.64 to 2.65


git-svn-id: http://gperftools.googlecode.com/svn/trunk@102 6b5cf1ce-ec42-a296-1ba9-69fdba395a50

1 files changed, 34 insertions, 0 deletions

diff --git a/m4/acx_pthread.m4 b/m4/acx_pthread.m4
index 2cf20de..89d42c7 100644
--- a/m4/acx_pthread.m4
+++ b/m4/acx_pthread.m4
@@ -340,6 +340,40 @@ if test "x$acx_pthread_ok" = xyes; then
 	   acx_pthread_ok=no
 	fi
 	
+	AC_MSG_CHECKING([whether what we have so far is sufficient with -nostdlib])
+	CFLAGS="-nostdlib $CFLAGS"
+	# we need c with nostdlib
+	LIBS="$LIBS -lc"
+	AC_TRY_LINK([#include <pthread.h>],
+	      [pthread_t th; pthread_join(th, 0);
+	       pthread_attr_init(0); pthread_cleanup_push(0, 0);
+	       pthread_create(0,0,0,0); pthread_cleanup_pop(0); ],
+	      [done=yes],[done=no])
+
+	if test "x$done" = xyes; then
+	   AC_MSG_RESULT([yes])
+	else
+	   AC_MSG_RESULT([no])
+	fi
+	
+	if test x"$done" = xno; then
+	   AC_MSG_CHECKING([whether -lpthread saves the day])
+	   LIBS="-lpthread $LIBS"
+	   AC_TRY_LINK([#include <pthread.h>],
+	      [pthread_t th; pthread_join(th, 0);
+	       pthread_attr_init(0); pthread_cleanup_push(0, 0);
+	       pthread_create(0,0,0,0); pthread_cleanup_pop(0); ],
+	      [done=yes],[done=no])
+
+	   if test "x$done" = xyes; then
+	      AC_MSG_RESULT([yes])
+	      PTHREAD_LIBS="$PTHREAD_LIBS -lpthread"
+	   else
+	      AC_MSG_RESULT([no])
+	      AC_MSG_WARN([Impossible to determine how to use pthreads with shared libraries and -nostdlib])
+	   fi
+	fi
+
 	CFLAGS="$save_CFLAGS"
 	LIBS="$save_LIBS"
 	CC="$save_CC"