Summary:
Allow EventListener::OnCompactionCompleted to return CompactionJobStats,
which contains useful information about a compaction.
Example CompactionJobStats returned by OnCompactionCompleted():
smallest_output_key_prefix 05000000
largest_output_key_prefix 06990000
elapsed_time 42419
num_input_records 300
num_input_files 3
num_input_files_at_output_level 2
num_output_records 200
num_output_files 1
actual_bytes_input 167200
actual_bytes_output 110688
total_input_raw_key_bytes 5400
total_input_raw_value_bytes 300000
num_records_replaced 100
is_manual_compaction 1
Test Plan: Developed a mega test in db_test which covers 20 variables in CompactionJobStats.
Reviewers: rven, igor, anthony, sdong
Reviewed By: sdong
Subscribers: tnovak, dhruba, leveldb
Differential Revision: https://reviews.facebook.net/D38463
Summary: Optimistic transactions supporting begin/commit/rollback semantics. Currently relies on checking the memtable to determine if there are any collisions at commit time. Not yet implemented would be a way of enuring the memtable has some minimum amount of history so that we won't fail to commit when the memtable is empty. You should probably start with transaction.h to get an overview of what is currently supported.
Test Plan: Added a new test, but still need to look into stress testing.
Reviewers: yhchiang, igor, rven, sdong
Reviewed By: sdong
Subscribers: adamretter, MarkCallaghan, leveldb, dhruba
Differential Revision: https://reviews.facebook.net/D33435
Summary: as title
Test Plan: make release
Reviewers: MarkCallaghan, sdong
Reviewed By: sdong
Subscribers: sdong, dhruba, leveldb
Differential Revision: https://reviews.facebook.net/D38853
Summary: Sometimes we want to run tests sequentially. J=1 gives us that option
Test Plan:
make J=1 check -- sequential
make J=2 check -- parallel
Reviewers: sdong, yhchiang, meyering
Reviewed By: meyering
Subscribers: dhruba, leveldb
Differential Revision: https://reviews.facebook.net/D38805
Summary: In third-party2 build we need to force git sha because we're compiling from a different git repositry.
Test Plan: `FORCE_GIT_SHA=igor make`
Reviewers: kradhakrishnan, sdong
Reviewed By: kradhakrishnan
Subscribers: dhruba, leveldb
Differential Revision: https://reviews.facebook.net/D38679
Summary: Now rocksdb_build_git_sha is determined from "git sha". It is hard if the release is not from the repository directly but from a source code copy. Change to use the versions given in Makefile.
Test Plan: Run "make util/build_version.cc"
Reviewers: kradhakrishnan, rven, meyering, igor
Reviewed By: igor
Subscribers: leveldb, dhruba
Differential Revision: https://reviews.facebook.net/D38451
Summary: Don't treat warnings as error when building rocksdbjavastatic
Test Plan: make rocksdbjavastatic -j32
Reviewers: rven, fyrz, adamretter, igor
Reviewed By: igor
Subscribers: dhruba, leveldb
Differential Revision: https://reviews.facebook.net/D38187
Summary: Without this I get bunch of questions when I run `make clean`
Test Plan: no more questions!
Reviewers: rven, yhchiang, meyering, anthony
Reviewed By: meyering, anthony
Subscribers: meyering, dhruba, leveldb
Differential Revision: https://reviews.facebook.net/D38145
Summary: Based on comment from D37455
Test Plan: make install after make static_lib
Reviewers: meyering
Subscribers: dhruba
Differential Revision: https://reviews.facebook.net/D37461
Summary: make install fails when there is no shared lib. We need to revert the conditions, which will have the same effect, but without the failure
Test Plan: make install after only compiling static library
Reviewers: meyering
Subscribers: dhruba, leveldb
Differential Revision: https://reviews.facebook.net/D37455
Summary: The current version tries to install librocksdb.so even though it doesn't exist. This version will install librocksdb.so.3.10.0 and then create soft links in place
Test Plan:
`make static_lib; sudo make install` does not try to install librocksdb.so
`make shared_lib; sudo make install` installs one library and 3 symlinks. Before, four libraries were installed
Reviewers: sdong, meyering
Reviewed By: meyering
Subscribers: dhruba, leveldb
Differential Revision: https://reviews.facebook.net/D37425
Summary: Make target for running all xfunc tests
Test Plan: make xfunc
Reviewers: igor, sdong, meyering
Reviewed By: meyering
Subscribers: dhruba, leveldb
Differential Revision: https://reviews.facebook.net/D36873
Summary:
1. it doesn't work
2. we're not using it
In the future, if we need general benchmark framework, we should probably use https://github.com/google/benchmark
Test Plan: make all
Reviewers: yhchiang, rven, anthony, sdong
Reviewed By: sdong
Subscribers: dhruba, leveldb
Differential Revision: https://reviews.facebook.net/D36777
Summary: Add tests for MemTableList
Test Plan: run test
Reviewers: yhchiang, kradhakrishnan, sdong, igor
Reviewed By: igor
Subscribers: dhruba, leveldb
Differential Revision: https://reviews.facebook.net/D36735
Summary: "make commit-prereq" uses "make release" which overrides OPT, so ROCKSDB_LITE is not covered. Fix it by using "make static_lib"
Test Plan: Run it and see it fail (which is expected)
Reviewers: yhchiang, meyering, rven, anthony, kradhakrishnan, igor
Reviewed By: igor
Subscribers: leveldb, dhruba
Differential Revision: https://reviews.facebook.net/D36813
Summary: I don't think we need to use whole-archive to include jemalloc. This change only affects our development builds -- it does not affect our open source builds (which don't support jemalloc) or our fbcode third-party2 builds (which use open-source build codepaths).
Test Plan:
make
verify that jemalloc is running by running `MALLOC_CONF="prof:true" ./cache_test` and observing that file was created
Reviewers: MarkCallaghan
Reviewed By: MarkCallaghan
Subscribers: dhruba, leveldb
Differential Revision: https://reviews.facebook.net/D36783
Summary: These two files are test binaries and are not included in TESTS in Makefile.
Test Plan: `make clean` now deletes those files, too
Reviewers: sdong, kradhakrishnan, meyering
Reviewed By: kradhakrishnan, meyering
Subscribers: kradhakrishnan, dhruba, leveldb
Differential Revision: https://reviews.facebook.net/D36705
Summary:
When building rocksdbjava and rocksdbjavastatic, create -fPIC-enabled
binaries in a temporary subdirectory, jl/.
* Makefile (java_libobjects): New variable.
(java_libobjects): New rule.
(CLEAN_FILES): Arrange for "make clean" to remove that temporary dir.
(rocksdbjavastatic): Depend on the new variable.
Remove useless OPT=... line.
(rocksdbjava): Likewise.
Test Plan:
JAVA_HOME=/usr/local/jdk-7u67-64 PATH=$JAVA_HOME/bin:$PATH \
make rocksdbjavastatic
Reviewers: yhchiang
Reviewed By: yhchiang
Subscribers: dhruba
Differential Revision: https://reviews.facebook.net/D36645
Summary:
* src.mk (JNI_NATIVE_SOURCES): New variable, so we don't have to use
a glob in Makefile
* Makefile (JNI_NATIVE_SOURCES): Remove glob-using definition, now
that the explicit list of sources is in src.mk.
Test Plan:
Run this:
JAVA_HOME=/usr/local/jdk-7u67-64 PATH=$JAVA_HOME/bin:$PATH \
make rocksdbjava
Reviewers: yhchiang
Reviewed By: yhchiang
Subscribers: dhruba
Differential Revision: https://reviews.facebook.net/D36633
Summary:
As described in https://github.com/facebook/rocksdb/issues/563, we should add minor version to SONAME, since we break ABI with minor releases.
I also turned PLATFORM_SHARED_VERSIONED to true by default. This is true in LevelDB and it was switched to false by D15117 for no apparent reason. It should only be false for iOS.
Test Plan: `make shared_lib` produced librocksdb.dylib.3.10.0
Reviewers: sdong, yhchiang, meyering
Reviewed By: meyering
Subscribers: dhruba, leveldb
Differential Revision: https://reviews.facebook.net/D36573
Summary:
When GNU parallel is available, "make check" tests are now run in parallel.
When /dev/shm is usable, we tell those tests to create temporary files therein.
Now, the longest-running single test, db_test, (which is composed of hundreds of sub-tests)
is no longer run sequentially: instead, each of its sub-tests is run independently, and can
be parallelized along with all other tests. To make that process easier, this change
creates a temporary directory, "t/", in which it puts a small script for each of those
subtests. The output from each parallel-run test is now saved in t/log-TEST_NAME.
When GNU parallel is not available, we run the tests in sequence, just as before.
If GNU parallel is available and you don't like the default of running one subtest
per core, you can invoke "make J=1 check" to run only one test at a time.
Beware: this will take a long time, and it starts with the two longest-running tests, so you
will wait for a long time before seeing any results. Instead, if you want to use fewer resources
but still see useful progress, try "make J=60% check". That will attempt to ensure that 60% of
the cores are occupied by test runs.
To watch progress of individual tests (duration, success (PASS-or-FAIL), name), run "make watch-log"
in the same directory from another window. That will start with something like this:
and when complete should show numbers/names like this:
Every 0.1s: sort -k7,7nr -k4,4gr LOG|perl -n -e '@a=split("\t",$_,-1); $t=$a[8]; $t =~ s,^\./,,;' -e '$t =~ s, >.*,,; chomp $t;' -e '$t =~ /.*--gtest_filter=... Wed Apr 1 10:51:42 2015
152.221 PASS t/DBTest.FileCreationRandomFailure
109.280 PASS t/DBTest.EncodeDecompressedBlockSizeTest
82.315 PASS reduce_levels_test
77.812 PASS t/DBTest.CompactionFilterWithValueChange
73.236 PASS backupable_db_test
63.428 PASS deletefile_test
57.248 PASS table_test
55.665 PASS prefix_test
49.816 PASS t/DBTest.RateLimitingTest
...
Test Plan:
Timings (measured so as to exclude compile and link times):
With this change, all tests complete in 2m40s on a system for which nproc prints 32.
Prior to this this change, "make check" would take 24.5 minutes on that same system.
Here are durations (in seconds) of the longest-running subtests:
152.435 PASS t/DBTest.FileCreationRandomFailure
107.070 PASS t/DBTest.EncodeDecompressedBlockSizeTest
81.391 PASS ./reduce_levels_test
71.587 PASS ./backupable_db_test
61.746 PASS ./deletefile_test
57.960 PASS ./table_test
55.230 PASS ./prefix_test
54.060 PASS t/DBTest.CompactionFilterWithValueChange
48.873 PASS t/DBTest.RateLimitingTest
47.569 PASS ./fault_injection_test
46.593 PASS t/DBTest.Randomized
42.662 PASS t/DBTest.CompactionFilter
31.793 PASS t/DBTest.SparseMerge
30.612 PASS t/DBTest.CompactionFilterV2
25.891 PASS t/DBTest.GroupCommitTest
23.863 PASS t/DBTest.DynamicLevelMaxBytesBase
22.976 PASS ./rate_limiter_test
18.942 PASS t/DBTest.OptimizeFiltersForHits
16.851 PASS ./env_test
15.399 PASS t/DBTest.CompactionFilterV2WithValueChange
14.827 PASS t/DBTest.CompactionFilterV2NULLPrefix
Reviewers: igor, sdong, rven, yhchiang, igor.sugak
Reviewed By: igor.sugak
Subscribers: dhruba
Differential Revision: https://reviews.facebook.net/D35379
Summary:
Just couple of small changes:
1. removed signal_test, since it doesn't seem useful and we don't even run it as part of `make check`
2. moved perf_context_test to TESTS instead of PROGRAMS
3. `make release` probably shouldn't compile benchmarks. We currently rely on `make release` building db_bench (via Jenkins), so I left db_bench there.
This is just a minor cleanup. We need to rethink our targets since they are a bit messy right now. We can do this during our tech debt week.
Test Plan: make release
Reviewers: anthony, rven, yhchiang, sdong, meyering
Reviewed By: meyering
Subscribers: dhruba, leveldb
Differential Revision: https://reviews.facebook.net/D36171
Summary:
This fixes two bugs: "make clean" would never remove the generated
file, util/build_version.cc, and since D33591, would be regenerated
only if it were absent.
* Makefile (clean): Remove the generated file.
(util/build_version.cc): Depend on the no-prereq FORCE target,
so that this target's rules are always run.
Since this is a generated file, make it read-only.
Also, be sure to remove the temporary file when it is the same
as the original.
Test Plan:
Ensure that we attempt regeneration every time.
Make it empty with an up-to-date time stamp and demonstrate
that it is rebuilt with the expected content:
$ : > util/build_version.cc
$ make util/build_version.o
GEN util/build_version.cc
GEN util/build_version.d
GEN util/build_version.cc
CC util/build_version.o
$ cat util/build_version.cc
#include "build_version.h"
const char* rocksdb_build_git_sha = "rocksdb_build_git_sha:v3.10-2-gb30e72a";
const char* rocksdb_build_git_date = "rocksdb_build_git_date:2015-03-27";
const char* rocksdb_build_compile_date = __DATE__;
Reviewers: igor.sugak, sdong, ljin, igor, rven
Reviewed By: rven
Subscribers: dhruba
Differential Revision: https://reviews.facebook.net/D36087
Summary:
* Makefile (COMPILE_WITH_TSAN): Avoid a link failure by disabling
-pg when building with TSAN enabled.
Now that "make check" builds all $(PROGRAMS), it is linking
a few programs that were not normally linked before.
For example, this would fail to link with the following diagnostic:
COMPILE_WITH_TSAN=1 make -j40 log_and_apply_bench
CCLD log_and_apply_bench
ld: /usr/lib/../lib64/gcrt1.o: relocation R_X86_64_32S against `__libc_csu_fini' can not be used when making a shared object; recompile with -fPIC
/usr/lib/../lib64/gcrt1.o: error adding symbols: Bad value
collect2: error: ld returned 1 exit status
Makefile:511: recipe for target 'log_and_apply_bench' failed
make: *** [log_and_apply_bench] Error 1
Since removing -pg is sufficient to get past this link
failure, and no one cares about profiling TSAN-enabled
binaries anyway, we will refrain from linking with -pg
when TSAN testing is enabled. Use a new variable, "pg"
which is set to "-pg" in most cases, but that is made
empty when COMPILE_WITH_TSAN is set.
Test Plan:
Now, this succeeds:
rm -f log_and_apply_bench
COMPILE_WITH_TSAN=1 make -j40 log_and_apply_bench
Reviewers: igor.sugak, rven, sdong, ljin, igor
Reviewed By: igor
Subscribers: dhruba
Differential Revision: https://reviews.facebook.net/D35943
Summary:
* Makefile (check): Cause "make check" to build all $(PROGRAMS),
so that it verifies that the few benchmark-only source files that
not already built via "make check" do compile and link successfully.
Test Plan:
run "make clean; make check", and verify that
table/table_reader_bench.cc is now compiled.
Before, it was not, which led to an incomplete fix
for a build break.
Reviewers: ljin, igor.sugak, rven, igor, sdong
Reviewed By: sdong
Subscribers: dhruba
Differential Revision: https://reviews.facebook.net/D35883
Summary:
changed make unity target to use $LIB_SOURCES as a source of library source code. In the old way (using find) table/mock_table.h was added to a list of library objects and this was a course of `make unity` break.
`build_tools/unity` contains some redundant code, I deleted it and moved the functionality in the Makefile.
Test Plan:
Make sure unity completes with no errors.
```lang=bash
% make unity
```
Reviewers: sdong, rven, igor, meyering
Reviewed By: igor, meyering
Subscribers: dhruba, leveldb
Differential Revision: https://reviews.facebook.net/D35385
Summary: Make it easier for people to run all the tests.
Test Plan: Run it.
Reviewers: rven, yhchiang, igor, MarkCallaghan, IslamAbdelRahman, igor.sugak, anthony, kradhakrishnan, meyering
Reviewed By: meyering
Subscribers: meyering, leveldb, dhruba
Differential Revision: https://reviews.facebook.net/D35319
Summary:
Adds gtest fused source code into `third-party` directory. No manual changes.
gtest latest released 1.7 has clang dev compilation errors. Trunk version requires only one disabled warning (-Wno-missing-field-initializers)
Fused code is made as described here https://fburl.com/90806322
Details about why we need gtest source code instead of precompiled library https://fburl.com/90805763
Source used from http://googletest.googlecode.com/svn/trunk
Test Plan:
Build and notice no errors. Also check in logs that gtest-all.o being compiled gtest-all.o.
```lang=bash
% USE_CLANG=1 make all
```
Reviewers: lgalanis, yufei.zhu, rven, sdong, igor, meyering
Reviewed By: meyering
Subscribers: meyering, yhchiang, dhruba, leveldb
Differential Revision: https://reviews.facebook.net/D33345
Summary:
Here's my proposal for making our LOGs easier to read by machines.
The idea is to dump all events as JSON objects. JSON is easy to read by humans, but more importantly, it's easy to read by machines. That way, we can parse this, load into SQLite/mongo and then query or visualize.
I started with table_create and table_delete events, but if everybody agrees, I'll continue by adding more events (flush/compaction/etc etc)
Test Plan:
Ran db_bench. Observed:
2015/01/15-14:13:25.788019 1105ef000 EVENT_LOG_v1 {"time_micros": 1421360005788015, "event": "table_file_creation", "file_number": 12, "file_size": 1909699}
2015/01/15-14:13:25.956500 110740000 EVENT_LOG_v1 {"time_micros": 1421360005956498, "event": "table_file_deletion", "file_number": 12}
Reviewers: yhchiang, rven, dhruba, MarkCallaghan, lgalanis, sdong
Reviewed By: sdong
Subscribers: dhruba, leveldb
Differential Revision: https://reviews.facebook.net/D31647
Summary:
Any time one would modify a dependent of any *test*.cc file,
"make" would fail to rebuild the affected test binaries,
e.g., db_test. That was due to the fact that we deliberately
excluded those test-related files from the definition of SOURCES
and only $(SOURCES) was used to create the automatically-generated
.d dependency files. The fix is to generate a .d file for every
source file.
* src.mk: New file. Defines LIB_SOURCES, MOCK_SOURCES
and TEST_BENCH_SOURCES.
* Makefile: Include src.mk.
Reflect s/SOURCES/LIB_SOURCES/ renaming.
* build_tools/build_detect_platform: Remove the code
that was used to generate SOURCES= and MOCK_SOURCES=
definitions in make_config.mk. Those lists of files
are now hard-coded in src.mk. Hard-coding this list of
sources is desirable, because without that, one risks
including stray .cc files in a build. Not reproducible.
Test Plan:
Touch a file used by db_test's dependent .o files and ensure that
they are all recompiled. Before, none would be:
$ touch db/db_impl.h && make db_test
CC db/db_test.o
CC db/column_family.o
CC db/db_filesnapshot.o
CC db/db_impl.o
CC db/db_impl_debug.o
CC db/db_impl_readonly.o
CC db/forward_iterator.o
CC db/internal_stats.o
CC db/managed_iterator.o
CC db/repair.o
CC db/write_batch.o
CC utilities/compacted_db/compacted_db_impl.o
CC utilities/ttl/db_ttl_impl.o
CC util/ldb_cmd.o
CC util/ldb_tool.o
CC util/sst_dump_tool.o
CC util/xfunc.o
CCLD db_test
Reviewers: ljin, igor.sugak, igor, rven, sdong
Reviewed By: sdong
Subscribers: yhchiang, adamretter, fyrz, dhruba
Differential Revision: https://reviews.facebook.net/D33849
Summary:
This patch will update the Makefile and source code so that we can build RocksDB successfully on FreeBSD 10 and 11 (64-bit and 32-bit)
I have also encountered some problems when running tests on FreeBSD, I will try to fix them individually in different diffs
Notes:
- FreeBSD uses clang as it's default compiler (http://lists.freebsd.org/pipermail/freebsd-current/2012-September/036480.html)
- GNU C++ compiler have C++ 11 problems on FreeBSD (https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=193528)
- make is not gmake on FreeBSD (http://www.khmere.com/freebsd_book/html/ch01.html)
Test Plan:
Using VMWare Fusion Create 4 VM machines (FreeBSD 11 64-bit, FreeBSD 11 32-bit, FreeBSD 10 64-bit, FreeBSD 10 32-bit)
- pkg install git gmake gflags archivers/snappy
- git clone https://github.com/facebook/rocksdb.git
- apply this patch
- setenv CXX c++
- setenv CPATH /usr/local/include/
- setenv LIBRARY_PATH /usr/local/lib/
- gmake db_bench
- make sure compilation is successful and db_bench is running
- gmake all
- make sure compilation is successful
Reviewers: sdong, igor
Reviewed By: igor
Subscribers: dhruba
Differential Revision: https://reviews.facebook.net/D33891
Summary: See https://www.facebook.com/groups/rocksdb.dev/permalink/718536351578215/. We should enable people to run without warning-as-error, since we break this so often for different compilers.
Test Plan: introduce an warning, compile sucessfully
Reviewers: yhchiang, meyering, igor.sugak, rven, sdong
Reviewed By: sdong
Subscribers: adamretter, dhruba, leveldb
Differential Revision: https://reviews.facebook.net/D33963
Summary:
* Updated Makefile to exit `make analyze` with status 1 if scan-build detected any bugs.
* scan-build automatically detects which c++ compiler to use, and some times is uses wrong ones (from $CPP). Added implicit parameters to use $CC and $CXX.
* Added `scan_build_report` directory to .gitignore file.
* Added `scan_build_report` directory to clean target.
Test Plan:
Run `make analyze` and verify that exit status is 1, if there are scan-build bugs detected.
Run `make clean` and verify that files in `scan_build_report` directory are deleted.
After running `make analyze; git status` and verify that no untracked files in `scan_build_report` directory.
Reviewers: meyering, sdong, igor
Reviewed By: igor
Subscribers: dhruba, leveldb
Differential Revision: https://reviews.facebook.net/D33831
Summary:
* Makefile (WARNING_FLAGS): Add -W and -Wextra, and at least for now,
-Wno-unused-parameter. Without that latter one, there would be
many errors/warnings about unused parameters.
Test Plan:
run these and ensure there is no warning:
make clean && make
make clean && USE_CLANG=1 make
Reviewers: ljin, sdong, igor.sugak, igor
Reviewed By: igor
Subscribers: dhruba
Differential Revision: https://reviews.facebook.net/D33819
Summary:
Prior to this change, "make check" would always waste a lot of
time relinking 60+ binaries. With this change, it does that
only when the generated file, util/build_version.cc, changes,
and that happens only when the date changes or when the
current git SHA changes.
This change makes some other improvements: before, there was no
rule to build a deleted util/build_version.cc. If it was somehow
removed, any attempt to link a program would fail.
There is no longer any need for the separate file,
build_tools/build_detect_version. Its functionality is
now in the Makefile.
* Makefile (DEPFILES): Don't filter-out util/build_version.cc.
No need, and besides, removing that dependency was wrong.
(date, git_sha, gen_build_version): New helper variables.
(util/build_version.cc): New rule, to create this file
and update it only if it would contain new information.
* build_tools/build_detect_platform: Remove file.
* db/db_impl.cc: Now, print only date (not the time).
* util/build_version.h (rocksdb_build_compile_time): Remove
declaration. No longer used.
Test Plan:
- Run "make check" twice, and note that the second time no linking is performed.
- Remove util/build_version.cc and ensure that any "make"
command regenerates it before doing anything else.
- Run this: strings librocksdb.a|grep _build_.
That prints output including the following:
rocksdb_build_git_date:2015-02-19
rocksdb_build_git_sha:2.8.fb-1792-g3cb6cc0
Reviewers: ljin, sdong, igor
Reviewed By: igor
Subscribers: dhruba
Differential Revision: https://reviews.facebook.net/D33591
Summary:
The "ar" command was excessively verbose.
This abbreviates it to be like CC and LD.
Also, factor "rs" options into ARFLAGS.
Test Plan:
$ rm librocksdb.a
$ make librocksdb.a
AR librocksdb.a
ar: creating librocksdb.a
Reviewers: ljin, sdong, igor.sugak, igor
Reviewed By: igor
Subscribers: dhruba
Differential Revision: https://reviews.facebook.net/D33699
Summary:
Many link commands were identical.
Factor that out into a variable, AM_LINK, and use
it in place of all of those open-coded commands.
Test Plan: run "make check"
Reviewers: ljin, igor, sdong
Reviewed By: igor
Subscribers: dhruba
Differential Revision: https://reviews.facebook.net/D33585
Summary:
With this change, make now prints a summary line for each
compiler and linker invocation, e.g.,:
CC db/builder.o
CC db/c.o
CC db/column_family.o
To see full commands, insert "V=1" into your make command.
E.g., run "make V=1 all" if you want it to print each command
in its full glory.
$^ is GNU make's abbreviation for the prerequisites of the current target.
These AM_V_... variables expand to some very short string like "CC" or
"LD", by default, so that the output of "make" is readable. If/when you
want more details, just build with "make V=1 ...", and make will print
each full command as it is executed. If you prefer to see the noise
all the time, and only want to optionally see the abbreviated output,
set AM_DEFAULT_VERBOSITY=1 in your environment, and then build with
V=0 to see the abbreviated command indicators.
Test Plan:
invoke make a few different ways and observe:
make clean; make # abbreviated
make clean; make V=0 # also abbreviated
make clean; make V=1 # full detail
Reviewers: sdong, ljin, igor
Reviewed By: igor
Subscribers: dhruba
Differential Revision: https://reviews.facebook.net/D33579
Summary:
This is in preparation for some factorization.
* Makefile (deletefile_test): Add $(COVERAGEFLAGS) to link command.
(options_test): Remove explicit (redundant) dependency on
options_helper.o: that is already a dependent, via $(LIBOBJECTS)
Test Plan: run make
Reviewers: sdong, ljin, igor
Reviewed By: igor
Subscribers: dhruba
Differential Revision: https://reviews.facebook.net/D33573
Summary:
There were Makefile rules to build those two targets,
but neither rule has worked for a long time, due to missing
dependent source files. Remove those rules.
Test Plan: run "make"
Reviewers: sdong, ljin, igor
Reviewed By: igor
Subscribers: dhruba
Differential Revision: https://reviews.facebook.net/D33567
Summary:
Before this change, running "make" with no arguments would
silently run the rules for the "uninstall" target(!). Don't do that.
* Makefile (default): New, first target; depend on "all".
(uninstall, install): Do not hide the commands we run.
Test Plan:
Run "make" and verify that the rules for "uninstall" are no longer run.
Instead, note that many files are compiled and linked. Before, none were.
Reviewers: sdong, ljin, igor
Reviewed By: igor
Subscribers: dhruba
Differential Revision: https://reviews.facebook.net/D33531
Summary:
* Makefile (dummy): Prefix this statement with "dummy := ",
so that it no longer triggers a syntax error from GNU make 3.80
and earlier. Reported by nielsl in
https://github.com/facebook/rocksdb/issues/509
Test Plan: run make
Reviewers: sdong, ljin, igor
Reviewed By: igor
Subscribers: dhruba
Differential Revision: https://reviews.facebook.net/D33429
Summary:
The code being removed would invoke sed differently to work
around a portability difference in how sed -i works (different
on MacOS). Yet performing a host-type-based ifdef fails when
the tools installed do not match. That sed use was solely to
post-process the .d file. Instead, generate the desired output
directly, by using the compiler's -MT<FILE> option.
* Makefile (%.d: %.cc): With the prior use of Makefile-ifdef'd
sed, when building on MacOS with gnu sed, every run of this rule
would fail with a sed usage error. Also list each .d file as a
dependent.
Test Plan:
Ensure that a selected .d file is the same as before both with
g++ and with clang++. However, note that the new .d files each
contain a new reference to the .d file itself.
Reviewers: sdong, ljin, igor
Reviewed By: igor
Subscribers: dhruba
Differential Revision: https://reviews.facebook.net/D33369
