HOWTO_MERGE: New file.
libsanitizer/ * HOWTO_MERGE: New file. From-SVN: r229116
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2015-10-21 Maxim Ostapenko <m.ostapenko@partner.samsung.com>
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* HOWTO_MERGE: New file.
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2015-10-21 Maxim Ostapenko <m.ostapenko@partner.samsung.com>
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* sanitizer_common/sanitizer_stacktrace.cc (GetCanonicFrame): Assume we
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In general, merging process should not be very difficult, but we need to
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track various ABI changes and GCC-specific patches carefully. Here is a
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general list of actions required to perform the merge:
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- Checkout recent GCC tree.
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- Run merge.sh script from libsanitizer directory.
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- Modify Makefile.am files into asan/tsan/lsan/ubsan/sanitizer_common/interception
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directories if needed. In particular, you may need to add new source files
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and remove old ones in source files list, add new flags to {C, CXX}FLAGS if
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needed and update DEFS with new defined variables.
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- Apply all needed GCC-specific patches to libsanitizer (note that some of
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them might be already included to upstream).
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- Apply all necessary compiler changes. Be especially careful here, you must
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not break ABI between compiler and library.
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- Modify configure.ac file if needed (e.g. if you need to add link against new
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library for sanitizer lilbs).
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- Remove unused (deleted by merge) files from all source and include
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directories. Be especially careful with headers, because they aren't listed
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in Makefiles explicitly.
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- Regenerate configure script and all Makefiles by autoreconf. You should use
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exactly the same autotools version as for other GCC directories (current
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version is 2.64, https://www.gnu.org/software/automake/faq/autotools-faq.html
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for details how to install/use it).
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- Run regression testing on at least three platforms (e.g. x86-linux-gnu,
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x86_64-linux-gnu, aarch64-linux-gnu).
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- Run {A, UB}San bootstrap on at least three platforms.
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