mirror of
https://github.com/gperftools/gperftools
synced 2024-12-22 07:20:01 +00:00
92beff8843
* Add a flag to ingore unaligned-ptr leaks (archanakannan) * PORTING: Add get-pc capabilities for a new OS (csilvers) * Don't register malloc extension under valgrind (csilvers) * Fix throw specs for our global operator new (chandlerc) * PORTING: link to instructions on windows static overrides (mbelshe) * Fix prototype differences in debugalloc (chandlerc, csilvers, wan) * Change pprof to handle big-endian input files (csilvers) * Properly align allocation sizes on Windows (antonm) * Improve IsRunningOnValgrind, using valgrind.h (csilvers, kcc) * Improve the accuracy of system_alloc actual_size (csilvers) * Add interactive callgrind support to pprof (weidenri...) * Fix off-by-one problems when symbolizing in pprof (dpeng) * Be more permissive in allowed library names, in pprof (csilvers) * PORTING: Fix pc_from_ucontext to handle cygwin and redhat7 (csilvers) * Fix stacktrace to avoid inlining (ppluzhnikov) git-svn-id: http://gperftools.googlecode.com/svn/trunk@91 6b5cf1ce-ec42-a296-1ba9-69fdba395a50
100 lines
4.5 KiB
Plaintext
100 lines
4.5 KiB
Plaintext
--- COMPILING
|
|
|
|
This project has begun being ported to Windows. A working solution
|
|
file exists in this directory:
|
|
google-perftools.sln
|
|
|
|
You can load this solution file into either VC++ 7.1 (Visual Studio
|
|
2003) or VC++ 8.0 (Visual Studio 2005) -- in the latter case, it will
|
|
automatically convert the files to the latest format for you.
|
|
|
|
When you build the solution, it will create a number of unittests,
|
|
which you can run by hand (or, more easily, under the Visual Studio
|
|
debugger) to make sure everything is working properly on your system.
|
|
The binaries will end up in a directory called "debug" or "release" in
|
|
the top-level directory (next to the .sln file). It will also create
|
|
two binaries, nm-pdb and addr2line-pdb, which you should install in
|
|
the same directory you install the 'pprof' perl script.
|
|
|
|
Note that these systems are set to build in Debug mode by default.
|
|
You may want to change them to Release mode.
|
|
|
|
To use tcmalloc_minimal in your own projects, you should only need to
|
|
build the dll and install it someplace, so you can link it into
|
|
further binaries. To use the dll, you need to add the following to
|
|
the linker line of your executable:
|
|
"libtcmalloc_minimal.lib" /INCLUDE:"__tcmalloc"
|
|
|
|
Here is how to accomplish this in Visual Studio 2005 (VC8):
|
|
|
|
1) Have your executable depend on the tcmalloc library by selecting
|
|
"Project Dependencies..." from the "Project" menu. Your executable
|
|
should depend on "libtcmalloc_minimal".
|
|
|
|
2) Have your executable depend on a tcmalloc symbol -- this is
|
|
necessary so the linker doesn't "optimize out" the libtcmalloc
|
|
dependency -- by right-clicking on your executable's project (in
|
|
the solution explorer), selecting Properties from the pull-down
|
|
menu, then selecting "Configuration Properties" -> "Linker" ->
|
|
"Input". Then, in the "Force Symbol References" field, enter the
|
|
text "__tcmalloc" (without the quotes). Be sure to do this for both
|
|
debug and release modes!
|
|
|
|
You can also link tcmalloc code in statically -- see the example
|
|
project tcmalloc_minimal_unittest-static, which does this. For this
|
|
to work, you'll need to add "/D PERFTOOLS_DLL_DECL=" to the compile
|
|
line of every perftools .cc file. You do not need to depend on the
|
|
tcmalloc symbol in this case (that is, you don't need to do either
|
|
step 1 or step 2 from above).
|
|
|
|
An alternative to all the above is to statically link your application
|
|
with libc, and then replace its malloc with tcmalloc. This allows you
|
|
to just build and link your program normally; the tcmalloc support
|
|
comes in a post-processing step. This is more reliable than the above
|
|
technique (which depends on run-time patching, which is inherently
|
|
fragile), though more work to set up. For details, see
|
|
https://groups.google.com/group/google-perftools/browse_thread/thread/41cd3710af85e57b
|
|
|
|
|
|
--- THE HEAP-PROFILER
|
|
|
|
The heap-profiler has had a preliminary port to Windows. It has not
|
|
been well tested, and probably does not work at all when Frame Pointer
|
|
Optimization (FPO) is enabled -- that is, in release mode. The other
|
|
features of perftools, such as the cpu-profiler and leak-checker, have
|
|
not yet been ported to Windows at all.
|
|
|
|
|
|
--- ISSUES
|
|
|
|
NOTE FOR WIN2K USERS: According to reports
|
|
(http://code.google.com/p/google-perftools/issues/detail?id=127)
|
|
the stack-tracing necessary for the heap-profiler does not work on
|
|
Win2K. The best workaround is, if you are building on a Win2k system
|
|
is to add "/D NO_TCMALLOC_SAMPLES=" to your build, to turn off the
|
|
stack-tracing. You will not be able to use the heap-profiler if you
|
|
do this.
|
|
|
|
NOTE ON _MSIZE and _RECALLOC: The tcmalloc version of _msize returns
|
|
the size of the region tcmalloc allocated for you -- which is at least
|
|
as many bytes you asked for, but may be more. (btw, these *are* bytes
|
|
you own, even if you didn't ask for all of them, so it's correct code
|
|
to access all of them if you want.) Unfortunately, the Windows CRT
|
|
_recalloc() routine assumes that _msize returns exactly as many bytes
|
|
as were requested. As a result, _recalloc() may not zero out new
|
|
bytes correctly. IT'S SAFEST NOT TO USE _RECALLOC WITH TCMALLOC.
|
|
_recalloc() is a tricky routine to use in any case (it's not safe to
|
|
use with realloc, for instance).
|
|
|
|
|
|
I have little experience with Windows programming, so there may be
|
|
better ways to set this up than I've done! If you run across any
|
|
problems, please post to the google-perftools Google Group, or report
|
|
them on the google-perftools Google Code site:
|
|
http://groups.google.com/group/google-perftools
|
|
http://code.google.com/p/google-perftools/issues/list
|
|
|
|
-- craig
|
|
|
|
Last modified: 3 February 2010
|