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* Add Elf 32 Support to Courgette.dgarrett@chromium.org2011-11-081-0/+9
| | | | | | | | | | | | | | | | | | | | | | | | | This change takes advantage of recent refactoring and adds support for Elf X86 32 executables to courgette. It should have no effect on handling of Windows PE executables. We have planned ahead to be able to restrict the code size of the courgette library in different cases to reduce patcher sizes, but this change does not yet take advantage of that (all platforms are supported everywhere). Also, the patcher class currently contains a very small amount of Elf/PE specific code for recreating relocation tables that cannot (currently) be compiled out. BUG=chromium-os:22149 TEST=Please verify that Chrome/Chromium patches can still be generated and work. Also, please see how much the updater executable which is downloaded to users has changed in size since R16. Review URL: http://codereview.chromium.org/8477045 git-svn-id: svn://svn.chromium.org/chrome/trunk/src@109089 0039d316-1c4b-4281-b951-d872f2087c98
* Revert 108929 - Add Elf 32 Support to Courgette.csilv@chromium.org2011-11-071-9/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | This change takes advantage of recent refactoring and adds support for Elf X86 32 executables to courgette. It should have no effect on handling of Windows PE executables. We have planned ahead to be able to restrict the code size of the courgette library in different cases to reduce patcher sizes, but this change does not yet take advantage of that (all platforms are supported everywhere). Also, the patcher class currently contains a very small amount of Elf/PE specific code for recreating relocation tables that cannot (currently) be compiled out. BUG=chromium-os:22149 TEST=Please verify that Chrome/Chromium patches can still be generated and work. Also, please see how much the updater executable which is downloaded to users has changed in size since R16. Review URL: http://codereview.chromium.org/8428009 TBR=dgarrett@chromium.org Review URL: http://codereview.chromium.org/8490023 git-svn-id: svn://svn.chromium.org/chrome/trunk/src@108934 0039d316-1c4b-4281-b951-d872f2087c98
* Add Elf 32 Support to Courgette.dgarrett@chromium.org2011-11-071-0/+9
| | | | | | | | | | | | | | | | | | | | | | | | | This change takes advantage of recent refactoring and adds support for Elf X86 32 executables to courgette. It should have no effect on handling of Windows PE executables. We have planned ahead to be able to restrict the code size of the courgette library in different cases to reduce patcher sizes, but this change does not yet take advantage of that (all platforms are supported everywhere). Also, the patcher class currently contains a very small amount of Elf/PE specific code for recreating relocation tables that cannot (currently) be compiled out. BUG=chromium-os:22149 TEST=Please verify that Chrome/Chromium patches can still be generated and work. Also, please see how much the updater executable which is downloaded to users has changed in size since R16. Review URL: http://codereview.chromium.org/8428009 git-svn-id: svn://svn.chromium.org/chrome/trunk/src@108929 0039d316-1c4b-4281-b951-d872f2087c98
* Last small bit of refactoring.dgarrett@chromium.org2011-10-311-7/+8
| | | | | | | | | | | | | | | | Move the Win32X86Generator and Patcher classes to non-windows specific names since they can be reused untouched for Elf. Move them from one file to files with matching names while at it. Store the transformation kind on the generator class so that it can be know if it's PE or Elf. Unified the TransformationId and ExecutableType enums into a single enum used everywhere (defined in courgette.h since it's now part of the external API). BUG=chromium-os:22149 TEST=Unittests Review URL: http://codereview.chromium.org/8417045 git-svn-id: svn://svn.chromium.org/chrome/trunk/src@108019 0039d316-1c4b-4281-b951-d872f2087c98
* Further refactoring, move ImageInfo into Disassembler/DisassemblerWin32X86.dgarrett@chromium.org2011-10-261-1/+0
| | | | | | | | | | | | | | | | This means that all PE specific knowledge is now contained in a single class which leaves us in pretty good shape for supporting ELF 32. There are still widespread assumptions about being 32 bit, but those can be addressed at a much later date. BUG=None TEST=Unittests Review URL: http://codereview.chromium.org/8166013 git-svn-id: svn://svn.chromium.org/chrome/trunk/src@107260 0039d316-1c4b-4281-b951-d872f2087c98
* Start refactoring to reduce executable type knowledge.dgarrett@chromium.org2011-10-211-10/+14
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This creates executable detection functions, a globally shared enum for describing an executable type, and reduces the number of classes and locations with executable specific knowledge. These changes, along with moving architecture specific classes into their own files should make it easier to produce special purpose clients that only contain the code required to apply their own form of patch. DisassemblerWin32EXE, ImagePE, CourgetteWin32X86PatchGenerator, and CourgetteWin32X86Patcher, and ensemble handling are all heavily affected here. This should have no effect on the behavior of the system yet, and is instead all prep-work. This is the same as an earlier CL, except that ParseHeader will now return an error for 64 bit PE executables, and resource only DLLs. This is because the detection factories depend on ParseHeader to decide if a given file is supported. BUG=None TEST=Unittests Review URL: http://codereview.chromium.org/7920004 git-svn-id: svn://svn.chromium.org/chrome/trunk/src@103879 0039d316-1c4b-4281-b951-d872f2087c98 Review URL: http://codereview.chromium.org/8344037 git-svn-id: svn://svn.chromium.org/chrome/trunk/src@106793 0039d316-1c4b-4281-b951-d872f2087c98
* Revert 103879 - Start refactoring to reduce executable type knowledge.laforge@chromium.org2011-10-111-14/+10
| | | | | | | | | | | | | | | | | | | | | | | | | | | This creates executable detection functions, a globally shared enum for describing an executable type, and reduces the number of classes and locations with executable specific knowledge. These changes, along with moving architecture specific classes into their own files should make it easier to produce special purpose clients that only contain the code required to apply their own form of patch. DisassemblerWin32EXE, ImagePE, CourgetteWin32X86PatchGenerator, and CourgetteWin32X86Patcher, and ensemble handling are all heavily affected here. This should have no effect on the behavior of the system yet, and is instead all prep-work. BUG=None TEST=Unittests Review URL: http://codereview.chromium.org/7920004 TBR=dgarrett@chromium.org Review URL: http://codereview.chromium.org/8234012 git-svn-id: svn://svn.chromium.org/chrome/trunk/src@104926 0039d316-1c4b-4281-b951-d872f2087c98
* Start refactoring to reduce executable type knowledge.dgarrett@chromium.org2011-10-041-10/+14
| | | | | | | | | | | | | | | | | | | | | | | | This creates executable detection functions, a globally shared enum for describing an executable type, and reduces the number of classes and locations with executable specific knowledge. These changes, along with moving architecture specific classes into their own files should make it easier to produce special purpose clients that only contain the code required to apply their own form of patch. DisassemblerWin32EXE, ImagePE, CourgetteWin32X86PatchGenerator, and CourgetteWin32X86Patcher, and ensemble handling are all heavily affected here. This should have no effect on the behavior of the system yet, and is instead all prep-work. BUG=None TEST=Unittests Review URL: http://codereview.chromium.org/7920004 git-svn-id: svn://svn.chromium.org/chrome/trunk/src@103879 0039d316-1c4b-4281-b951-d872f2087c98
* fix build error.tommi@chromium.org2011-04-061-1/+2
| | | | git-svn-id: svn://svn.chromium.org/chrome/trunk/src@80654 0039d316-1c4b-4281-b951-d872f2087c98
* Switch out use of std::string and std::vector for large allocations for a ↵tommi@chromium.org2011-04-061-13/+14
| | | | | | | | | | | | | | | | | buffer class that doesn't throw exceptions. The new buffer class is pretty simple and relies on the MemoryAllocator class that I previously to back large allocations with mapped files when memory is scarce. That reduced the number of crashes quite a bit but we still crash on machines that are simply out of diskspace as well. So, the right thing to do is to expect and handle failures which is what this cl is all about. What we should see once this has landed is that crash dumps due to courgette running out of disk space should disappear from crash/ and instead we should see the number of users that run into this particular problem in dashboards. TEST=Courgette out-of-memory/out-of-diskspace errors should disappear from crash/ BUG=74777 Review URL: http://codereview.chromium.org/6677141 git-svn-id: svn://svn.chromium.org/chrome/trunk/src@80648 0039d316-1c4b-4281-b951-d872f2087c98
* Improved memory usage while applying patch.sra@chromium.org2011-02-231-0/+8
| | | | | | | | | | | | | | | | | | | | | | | Reduced total size of allocations from 520MB to 318MB. The general technique is to allocate the correct size rather than grow into the correct size and overshoot. 1. Find file sizes and allocate buffers of that size for the input files. 2. Pre-allocate a buffer for the collected inputs for the final diff. 3. Calculate the size for (2) during compression and include it in the patch header. The courgette.exe command line tool now calls the same ApplyEnsemblePatch entry point that is called by the installer. This ensures measurements of courgette.exe are a better reflection of the installer. BUG=72459 Review URL: http://codereview.chromium.org/6546008 git-svn-id: svn://svn.chromium.org/chrome/trunk/src@75787 0039d316-1c4b-4281-b951-d872f2087c98
* Also build a 64-bit exe version of the 32-bit courgettebradnelson@google.com2010-12-211-2/+2
| | | | | | | | | | | | utility + library to support larger input sizes. BUG=63793 TEST=None Review URL: http://codereview.chromium.org/5096007 git-svn-id: svn://svn.chromium.org/chrome/trunk/src@69779 0039d316-1c4b-4281-b951-d872f2087c98
* Convert LOG(INFO) to VLOG(1) - courgette/.pkasting@chromium.org2010-10-211-24/+23
| | | | | | | | | | This eliminates the custom logging code as VLOG is per-module configurable. I did preserve the distinct log level numbers in the VLOG statements. BUG=none TEST=none Review URL: http://codereview.chromium.org/3904002 git-svn-id: svn://svn.chromium.org/chrome/trunk/src@63407 0039d316-1c4b-4281-b951-d872f2087c98
* Prevent Courgette from choosing a really large executable as the basis of ↵mal@chromium.org2010-09-261-0/+27
| | | | | | | | | | | | comparison for a small executable. Patch by sra@chromium.org. BUG= none TEST= diff installer creation succeeds. Review URL: http://codereview.chromium.org/3431029 git-svn-id: svn://svn.chromium.org/chrome/trunk/src@60591 0039d316-1c4b-4281-b951-d872f2087c98
* Fix for bug where 64-bit executables were processed as 32-bit executables.laforge@chromium.org2010-03-151-0/+6
| | | | | | | | | | Added some more logging. TBR=sra Review URL: http://codereview.chromium.org/988002 git-svn-id: svn://svn.chromium.org/chrome/trunk/src@41598 0039d316-1c4b-4281-b951-d872f2087c98
* Move Courgettesra@chromium.org2009-05-081-0/+382
from src\third_party\courgette to src\courgette and src\courgette\third_party Fixed #includes Added properties to ignore generated files: C:\c5\src>svn pg svn:ignore courgette courgette.xcodeproj courgette.sln courgette_fuzz.vcproj courgette_lib.vcproj courgette_minimal_tool.vcproj courgette_tool.vcproj courgette.vcproj courgette_unittests.vcproj SConstruct courgette_fuzz.scons courgette_lib.scons courgette_main.scons courgette_minimal_tool.scons courgette.scons courgette_tool.scons courgette_unittests.scons Review URL: http://codereview.chromium.org/115062 git-svn-id: svn://svn.chromium.org/chrome/trunk/src@15692 0039d316-1c4b-4281-b951-d872f2087c98
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