Thu Sep 18 16:00:27 2008 Google Inc. <opensource@google.com>

	* google-perftools: version 0.99 release
	* Add IsHeapProfileRunning (csilvers)
	* Add C shims for some of the C++ header files (csilvers)
	* Fix heap profile file clean-up logic (maxim)
	* Rename linuxthreads.c to .cc for better compiler support (csilvers)
	* Add source info to disassembly in pprof (sanjay)
	* Use open instead of fopen to avoid memory alloc (csilvers)
	* Disable malloc extensions when running under valgrind (kcc)
	* BUG FIX: Fix out-of-bound error by reordering a check (larryz)
	* Add Options struct to ProfileData (cgd)
	* Correct PC-handling of --base in pprof (csilvers)
	* Handle 1 function occurring twice in an image (sanjay)
	* Improve stack-data cleaning (maxim)
	* Use 'struct Foo' to make header C compatible (csilvers)
	* Add 'total' line to pprof --text (csilvers)
	* Pre-allocate buffer for heap-profiler to avoid OOM errors (csilvers)
	* Allow a few more env-settings to control tcmalloc (csilvers)
	* Document some of the issues involving thread-local storage (csilvers)
	* BUG FIX: Define strtoll and friends for windows (csilvers)


git-svn-id: http://gperftools.googlecode.com/svn/trunk@54 6b5cf1ce-ec42-a296-1ba9-69fdba395a50

1 files changed, 15 insertions, 0 deletions

diff --git a/README b/README
index e171d8f..c055336 100644
--- a/README
+++ b/README
@@ -142,6 +142,21 @@ win32's malloc.
   http://gaiacrtn.free.fr/articles/win32perftools.html
 
 
+OLD SYSTEM ISSUES
+-----------------
+
+When compiling perftools on some old systems, like RedHat 8, you may
+get an error like this:
+    ___tls_get_addr: symbol not found
+
+This means that you have a system where some parts are updated enough
+to support Thread Local Storage, but others are not.  The perftools
+configure script can't always detect this kind of case, leading to
+that error.  To fix it, just comment out (or delete) the line
+   #define HAVE_TLS 1
+in your config.h file before building.
+
+
 64-BIT ISSUES
 -------------