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118 lines
3.9 KiB
Plaintext
118 lines
3.9 KiB
Plaintext
Name: tcmalloc
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Short Name: gperftools
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URL: http://gperftools.googlecode.com/
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Version: unknown
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Revision: 144
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Security Critical: yes
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License: BSD
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Description:
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This contains Chromium's locally patched copy of tcmalloc.
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Contents:
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chromium/
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The chromium patched sources, copied from the vendor/
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subdirectory and containing our local modifications.
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We only copy over the vendor/src/ subdirectory (the only piece
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we need) but still leave it in a chromium/src/ subdirectory to
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keep the directory structures in parallel.
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vendor/
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Vanilla sources from upstream:
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http://gperftools.googlecode.com/svn/trunk
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The current revision is:
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Last Changed Rev: 144
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Last Changed Date: 2012-02-04 00:10:11 +0000 (Sat, 04 Feb 2012)
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HOWTOs:
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Take a new version from upstream:
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1) Grab the revision:
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$ svn export [-r {tcmalloc-rev}] \
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http://gperftools.googlecode.com/svn/trunk \
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vendor-{tcmalloc-rev}
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2) Check for added or deleted files:
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$ diff -q -r -x .svn vendor vendor-{tcmalloc-rev}
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3) Copy the new revision on top of the checked-in vendor branch:
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$ cp -r vendor-{tcmalloc-rev}/* vendor
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C:\> xcopy /e/y/i vendor-{tcmalloc-rev}\* vendor
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4) Make all vendor files non-executable.
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$ find . -executable -type f -exec chmod a-x {} \;
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5) "svn add" or "svn rm" added or removed files (based on your
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"diff -q -r" output from above)
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6) Create the CL, upload, check it in:
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$ gcl change CL
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$ gcl upload CL
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$ gcl commit CL
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Note the revision number since you're going to want to merge
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that to the local chromium branch.
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Merge a new upstream version with our local patched copy:
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1) Merge the local revision to chromium/src
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$ svn merge -c {chrome-rev} svn://chrome-svn/chrome/trunk/src/third_party/tcmalloc/vendor/src chromium/src
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2) Resolve any conflicts
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3) Create the CL, upload, check in:
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$ gcl change CL
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$ gcl upload CL
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$ gcl commit CL
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Modifications:
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- Converted to utf-8 with: vim +"argdo write ++enc=utf-8" *.h *.c
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- Added support for android.
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- Use NULL instead of static_cast<uintptr_t>(0) in stack_trace_table.cc,
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for -std=c++11 compatibility.
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- Added support for pseudo-stack heap profiling via a callback to retrieve a
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simulated stack from the embedding application.
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- Inserted spaces around PRIx64, SCNx64 and friends, for c++11 compatibility.
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- Fix sprintf formatting warning in MaybeDumpProfileLocked
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- Fix logging issues in android
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- Changed DEFINE_foo macros to ignore envname unless ENABLE_PROFILING is defined
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- Changed DEFINE_string to define const char*s instead of strings
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- Disabled HEAPPROFILE envvar unless ENABLE_PROFILING is defined
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- Add "ARMv8-a" to the supporting list of ARM architecture
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- Add generic.total_physical_bytes property to MallocExtension
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- Conditionally define HAVE_VDSO_SUPPORT only on linux_x86 to avoid static initializers
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- Add TC_MALLOPT_IS_OVERRIDDEN_BY_TCMALLOC mallopt() arg
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- Added tc_malloc_skip_new_handler.
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- Added TCMALLOC_DONT_REPLACE_SYSTEM_ALLOC which bypasses the libc_override logic.
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- Backported 7df7f14 "issue-693: enable futex usage on arm" from upstream.
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- Don't use the tls model 'initial-exec' in chromeos on arm with gcc.
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- Update addr2line-pdb.c to fix format string errors and use relative addresses
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matching linux's behavior more closely.
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- Changed kint64min to not depend on undefined behavior.
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- Fix potential missing nul character in symbol names produced by addr2line-pdb.
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- Remove superfluous size_t value >= 0 check.
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- Make kFooType in tcmalloc.cc truly const.
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- Added support for mips64el.
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- Pulled SuggestedDelayNS() implementation for 32bit architectures which do not support 64bit atomicity
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- Pulled several mipsel related changes from lss project to fix compile errors
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- Fixed line endings in vendor/README_windows.txt to Unix (LF)
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