Prepend the toybox symlink directory to $PATH, and stop generating
symlinks into out/.path for tools used from toybox.
We don't (yet?) have toybox prebuilts for darwin, so apply the above only to Linux, and preserve existing behavior on Darwin.
Test: check the build banner for uname results
Test: m
Change-Id: I37fc380381e65a628cdc131d462fd4441eacfe9d
Stop writing out ninja files, as they become very large, especially when
multiplied by the number of defined products.
Test: treehugger
Change-Id: Id9529d14040acb72a0188e58b5db2911f142071e
DIST_DIR is controlled by soong_ui, and the make dumpvars code no longer
has access to it. So instead, handle some dumpvar requests inside
soong_ui itself.
Test: get_build_var DIST_DIR
Test: get_build_var OUT_DIR
Test: get_build_var BUILD_SYSTEM
Test: build/soong/soong_ui.bash --dumpvars-mode --vars="DIST_DIR
BUILD_SYSTEM"
Change-Id: Id3bcb8b0748db67c83d0e42d1ae5be564c5eb2f7
We're only using it to distribute files in case of failure, which isn't
well supported currently, but can be handled for now by using the
DIST_DIR environment variable during the command execution.
This was at least one cause that we'd be re-running Soong during every
build server build, as the DIST_DIR values are unique.
Test: m dist
Change-Id: Ibd5e6b6c46695350de80b745bfb6a6aa685033a0
We've got a prebuilt of make in prebuilts/build-tools, and we build
xmllint from source.
Test: No logs on the build servers in the last 24 hours
Change-Id: Ib60a7b5feaa31097071b67ebf6beb7f0b9a9f81b
The idea is that we'd move the installation and packaging tasks over to
it, using data from Soong & the Kati reading Android.mk files.
This would allow us to make more fundamental changes about how we
package things without having to adjust makefiles throughout the tree.
Possible use cases:
* Moving some information from Soong's Android.mk output to a file read
by the packaging step may allow us to read the Android.mk files less
often, speeding up builds.
* Refactoring our current two-stage ASAN builds to run the Kati build
step twice, writing into different object directories, then have a
single packaging step that reads both outputs. Soong already has the
capability of writing out a single ninja file with all the asan
combinations.
* Running two build steps, one building the system-related modules
using a "generic" device configuration, and one building the vendor
modules using a specific device configuration. This could enforce a
GSI/mainline system vs vendor split in a single build invocation.
* If all installation is through this tool, it will be much easier to
track what should no longer be installed on an incremental build,
reducing the need for installclean.
* Changing PRODUCT_PACKAGES should be a much faster operation, which
means we could keep track of local additions to the images. Then
`mma` would be more persistent, instead of installing something once,
then never updating it again.
Eventually we plan on switching from Kati to something Go-based, but
this is a more incremental approach while we clean up everything else.
Currently, this just moves the dist-for-goal handling over to the
packaging step, so that we don't need to read Android.mk files when
DIST_DIR changes, or we switch between dist vs not.
Bug: 116968624
Bug: 117463001
Test: m nothing
Change-Id: Idec5ac6f7c7475397ba0fb65bd3785128a7517df
Set the default value if one isn't provided.
Test: `get_build_var DIST_DIR` after removing the default setting in envsetup.mk
Change-Id: I0cb310fc65f7747c36de14608b61786ef6863fd1
This is no longer used within Android builds. We don't have any way of
providing extra libraries, or using a hermetic version of perl.
Bug: 117338567
Test: check build logs for the last 48 hours
Change-Id: I06d41a0006a47508a435dbf44bfccc4b385d9f41
Now that we've got prebuilts of make, turn on logging so that
we can find all the users and convert them to the prebuilt.
We also build xmllint as part of the tree, so log uses of that
too.
Test: treehugger
Change-Id: I8a6a5d481dfc709dc0eb3424c51430bc54763c1e
Make the cleanspec & Android.mk runs of kati use much of the same code
and arguments.
Also renames 'Kati' to 'KatiBuild' in many cases, in the the expectation
that we'll have a 'KatiPackage' step in the future.
Use --no_ninja_prelude and move local_pool & _kati_always_build_ into
the combined ninja file. This will reduce the need to re-read makefiles
when Goma is enabled, and it allows us to include more than one
Kati-generated ninja file in the build graph.
Bug: 116968624
Test: build_test on downstream branches
Change-Id: Ibdac689b81f62dc293647fad917d84946f2c3cfa
Check for the presence of Android.mk or CleanSpec.mk, which
are somewhat common problems.
Bug: 113147143
Test: m (with and without files present)
Change-Id: I31cf60c325e7f6c6fce7aec54712c1cb802055c2
All downstream users either mark BUILD_BROKEN_PHONY_TARGETS=true
explicitly, or don't have any warnings.
Test: build_test on downstream branches
Change-Id: I6e9d7ed42da941148827854851657895c2e98649
Build target owners will create a zip of all OWNERS
files in source code based on the cached OWNERS.list
Bug: 114242886
Test: make dist -j owners
Change-Id: I97fa3737e1a2a240a08e072dfb2905c11f28705b
These warnings are usually hit in one of the two conditions:
1. Targets that should be marked .PHONY, but are not.
2. Attempts to define output files in the source tree.
See https://android.googlesource.com/platform/build/+/master/Changes.md#phony_targets
for more information.
Test: multiproduct_kati in all downstream branches
Change-Id: Ibe37cce320612825c22987e94d0740e8c0565b6f
od is used by ninja's inline.sh tool to encode a python script in a C
header.
Test: forrest run of build-tools branch
Change-Id: I87001a02b168ebe183b8b7dc495c67bb43f1b86d
Anything that isn't explicitly marked as Allowed in this list will now
return an error (and log a message) when it is executed.
Test: search all logs from the build server over the last day
Change-Id: I3ceacd9a140097809dde81a8d8979dd2c45f234c
unix2dos is used instead of todos by some build servers in
development/build/tools/patch_windows_sdk.sh
Test: none
Change-Id: I04cb2258f71bebfc8792b7aa95643a45ffe3ec5c
todos is used by development/build/tools/patch_windows_sdk.sh
Test: m win_sdk; check out/soong.log
Change-Id: I5e1a290838cc34261d7f5fc321afe79a8b1a6fbb
These still default to warnings, but if a board decides to set
BOARD_BROKEN_PHONY_TARGETS := false, they'll turn into errors. More
likely I'll just be marking the broken targets as broken, then switching
the logic here to be like the dup rules warnings/errors.
Test: On a build with warnings, try <missing>, "false", and "true"
Change-Id: I041e1ff4618c4114ec43015b6c0ae1b49b36b6f8
Attempting to reduce the number of different spellings we have for
"product services" partition in the codebase.
Bug: 112431447
Test: m
Change-Id: I0a393a1d625e7ea3217d28735a4db709bce32395
Merged-In: I0a393a1d625e7ea3217d28735a4db709bce32395
Setting this will cause our invocation of ninja to fail. Even if we
fixed that, it's likely to run into other differences during the build.
Fixes: 112443729
Test: POSIXLY_CORRECT=1 m nothing
Change-Id: I0315955c9fd9536cc6cb0d7c700eed207f35cc80
lsof is used by goma to find its proxy daemon
ps is used on Mac instead of pstree in soong_ui
Test: none
Change-Id: Ifed7d09d604c00b7eebac1488a6f4658788d6e33
du is used by build/make/tools/releasetools/build_image.py
paste is used by system/core/rootdir/update_and_install_ld_config.mk
xxd is used by device/generic/goldfish/tools/mk_qemu_image.sh
Test: none
Change-Id: I707668578d1babe1b149c2c3f989e5f8be37d897
Buildbot parses failure messages that look like ninja errors, but this
error doesn't look like a ninja error. We used to output this via
stderr, which buildbot would fall back to, but that had synchronization
issues between stderr and stdout.
So switch this over to use the status API, marking this action as failed
when necessary, which will display a ninja-like error that buildbot can
parse.
Bug: 112007097
Test: add dangling dep, look at output.
Change-Id: Ib2bbba4373ea22ac01af8aa6bbf295296a93e94d
--warn_real_to_phony will print a warning any time that a non-PHONY rule
depends on a PHONY rule. Since PHONY rules are always considered dirty
this would force rebuilds on every incremental build. Real rules should
always depend on rules that have real outputs.
--warn_phony_looks_real will print a warning any time that a PHONY rule
has an output that looks like a file (has as / in it). This is can cause
confusion for users if it's not a real file, and it shouldn't be marked
as PHONY if it will be run every time (since that will slow down
incremental builds).
Test: run build_test on downstream branches, see few warnings
Change-Id: Id135c85c991976be33cd48a34eba0caaff1eda2c
All of the existing devices that have problems with this are setting
BUILD_BROKEN_DUP_RULES to true. Switch the behavior to default this to
an error.
Bug: 77611511
Test: check logs of all downstream build_test targets
Test: attempt to add an overriden command to hikey960 (uses default)
Change-Id: Ia83089f035925cf0c9883a1f593ae2da89fee568
Ninja now knows how to write directly to a file (or in our case, a named
pipe). This works around an issue we were seeing on Mac, where Go would
just hang after 50-2000 proto messages. It's also just a simpler
solution.
Bug: 111544015
Test: `m` with updated ninja on both Linux & Mac
Change-Id: Ic91920d83a6d2ea0b79e82b467e2423d78189f12
I've noticed a few instances of interleaved status messages in between
lines in a terminal/Writer.Print call on our build servers. Since
there's a lock protecting everything we write, I've got to assume this
is a stdout vs stderr problem. Ninja had always been outputing to
stdout, except for error messages, which are now marked with FAILED:
like failed actions.
Test: m blueprint_tools
Test: m missing
Change-Id: Idf8320d40694abf212c902c63a9703e4440ffb7a
The extra `defer os.Remove(fifo)` was sometimes racing with the next
instance of ninja, removing the file in between when it was re-created
and used. Since we're always removing the file before creating it, it's
safe to just remove that.
The error message for this failure wasn't all that good either, so move
so use the status Print/Error calls inside the goroutine instead of the
logging ones.
Test: `build/soong/build_test.bash -only-soong` repeatedly
Change-Id: Icfeb6b68802093bd3a07d3e46046ef7d1a89d4a1
This adds a new status package that merges the running of "actions"
(ninja calls them edges) of multiple tools into one view of the current
state, and gives that to a number of different outputs.
For inputs:
Kati's output parser has been rewritten (and moved) to map onto the
StartAction/FinishAction API. A byproduct of this is that the build
servers should be able to extract errors from Kati better, since they
look like the errors that Ninja used to write.
Ninja is no longer directly connected to the terminal, but its output is
read via the protobuf frontend API, so it's just another tool whose
output becomes merged together.
multiproduct_kati loses its custom status routines, and uses the common
one instead.
For outputs:
The primary output is the ui/terminal.Status type, which along with
ui/terminal.Writer now controls everything about the terminal output.
Today, this doesn't really change any behaviors, but having all terminal
output going through here allows a more complicated (multi-line / full
window) status display in the future.
The tracer acts as an output of the status package, tracing all the
action start / finish events. This replaces reading the .ninja_log file,
so it now properly handles multiple output files from a single action.
A new rotated log file (out/error.log, or out/dist/logs/error.log) just
contains a description of all of the errors that happened during the
current build.
Another new compressed and rotated log file (out/verbose.log.gz, or
out/dist/logs/verbose.log.gz) contains the full verbose (showcommands)
log of every execution run by the build. Since this is now written on
every build, the showcommands argument is now ignored -- if you want to
get the commands run, look at the log file after the build.
Test: m
Test: <built-in tests>
Test: NINJA_ARGS="-t list" m
Test: check the build.trace.gz
Test: check the new log files
Change-Id: If1d8994890d43ef68f65aa10ddd8e6e06dc7013a
Using ANDROID_BUILD_TOP and other envsetup.sh varialbes is already
forbidden in makefiles, but some tools run by the build (like
hidl-gen) will use it if it is set. Since they are set by envsetup.sh,
and sourcing envsetup.sh before building is optional, unset them inside
the build to get consistent behavior.
Bug: 79250545
Test: m checkbuild
Change-Id: I3e7d9f01390ccdc34c49115f2f15cd7542d9974b
Make the dangling rules list sorted and unique in order to avoid
very long lists when a dangling rule is referenced many times.
Also prettify the output by indenting the list and printing
"stopping" instead of a blank line for the fatal.
Test: m checkbuild
Change-Id: I8f7c27ae39b59f506b529d9995d90b0d6b9835d1
This matches the change to blueprint's blueprint_impl.bash:
https://github.com/google/blueprint/pull/213
It allows us to run bpglob during the two bootstrap phases, so we're
never running minibp or the primary builder in a later phase than
normal.
Also removes the dependency on out/soong/build.ninja from the main
phase, since it's never generated by the main phase anymore, and is
tripping the dangling dependency checks.
Bug: 73646380
Test: m nothing
Test: rm frameworks/base/core/java/android/content/pm/dex/ArtManager.java
Test: m nothing (soong re-runs)
Change-Id: Ia3952d015ad6091ad5a841f555acda78c9390e84
There are no users of these, other than the PDK, which is already
exempted.
Test: m nothing
Test: Check for warnings in downstream build_test logs
Test: Check for warnings in last two days of continuous build logs
Change-Id: I7c7d0068e928e591355c39d22635af86b8f43f1b
Remove support for compiling with javac from OpenJDK8.
We still target 1.8 by default, and OpenJDK8 prebuilts are still
required for the bootclasspath and running robolectric.
Bug: 38418220
Test: m java
Change-Id: I5686deb0ae4f9927192a039d08adc0117b2605dd
This is useful when determining which devices are setting which values
from the logs, cross-referencing where warnings still occur.
Test: look at out/soong.log
Change-Id: I3e3f0e4c8cbd9ce621b03f5163eff2cccfa8c424
Use the OpenJDK9 javac to run ErrorProne by adding it to
-processorpath and using -Xplugin:ErrorProne.
Bug: 69485063
Test: m RUN_ERROR_PRONE=true javac-check
Change-Id: I0496006b71b70766ef16d57753cbcf037897799c
We've turned off suffix rules with .SUFFIXES, but make them explicit
errors.
Test: build_test on downstream branches
Change-Id: I682ee3eb3a8f1451cd7e16f1e1d59afca5d21a26
pkill and sleep are used in
device/generic/goldfish/tools/emulator_boot_test.sh
pgrep is used by GOMA
bc and pwd are used by kernel builds
Test: none
Change-Id: If7004255b4776fa4409fdd4b0aa6d6617b471317
atree was using the host's strip tool during sdk generation, so expose
the prebuilt for use instead.
`id` was used with a test running minijail0 during the build
`sha1sum` is used by development/build/tools/mk_sdk_repo_xml.sh
`rmdir` was being used to remove some tmp files
Test: m PRODUCT-sdk_arm64-sdk dist sdk_repo
Test: Run other builds through forrest
Change-Id: I49c756a3e9497c0bbd9030754e6aa193a2d989a4
This reverts commit 09f4540d66.
Fixes the raw call to net.Listen in the tests to go through the listen()
helper and use the long socket path fallbacks.
Removes the use of timeouts from the tests -- the behaviors being tested
did not rely on timeouts, so removing them will reduce the flakiness if
the build is heavily loading the machine at the same time the test is
running.
Also fixes some potential nil pointer dereferences.
Test: OUT_DIR=<really long> m blueprint_tools
Test: `while .../soong-ui-build-paths/test/test; do sleep 0.01; done` with a build running
Change-Id: I16d44be7517bc415f1c808284088f4ba40df3bfa
This reverts commit c59a92cb1a.
Reason for revert: tests are broken with long OUT_DIRs
They're directly calling net.Listen, and not using the fallback
for long socket names.
Change-Id: Id14cbd499fd9b36c6926b7552d3554340cb0916c
This reverts commit 96c957ae20.
Fixes issues on some machines where the socket in TMPDIR ended up with a
unix domain socket pathname over 107 characters long, which Go will
reject due to underlying limitations in the system calls. If this
happens, we'll fall back to opening the directory, then using
/proc/self/fd/#/<file>, or manually creating a similar symlink in /tmp.
Also fixes some issues on Mac where os.Executable returns the symlink
instead of the underlying file, sending a message over a unix domain
socket will block if the reader isn't reading, and sandboxing was
preventing us from running `ps`.
Test: m blueprint_tools
Test: m blueprint_tools on mac
Change-Id: Ib19ccfe10cb0a79f1476fb1d5cd20ed0495be367
This will allow us to track (and eventually limit) the commands that the
build references via $PATH. These are mostly implicit dependencies on
the host system -- for Linux, we assume something similar to Ubuntu
14.04 with a few extra packages, but this will let us better define
that.
This will not catch uses of tools with absolute paths (/bin/bash, etc),
but most uses shouldn't be relying on absolute path names anyways.
Adds ~400ms on the first startup, ~140ms on subsequent runs, and
overhead of a few ms for every forwarded execution.
Test: m
Test: build/soong/build_test.bash
Test: Add `gcc --version`, TEMPORARY_DISABLE_PATH_RESTRICTIONS=true m
Change-Id: Id68cbb1c8ceef65bbbb10751e83722c7662d2351
Some tests make their temporary directories readonly. If they fail or
crash before cleaning up, they could leave these readonly directories
behind with files in them. os.RemoveAll fails with an error in this
case, and we can't start the build until they're removed.
Test: `m blueprint_tools` to run the new go tests
Change-Id: I761f96579e96167ebfd98c6cca59765bd50536ec
So that we can see where the time is going. Also removes the obsolete
ASAN_OPTIONS, which moved to kati, but I forgot to update this instance.
Test: m nothing; check out/soong.log
Change-Id: I0c4066bad20fc2dc22b389f4c973d10dca554ee3
The find commands used to locate the BoardConfig.mk can't be optimized
by Kati, so we're currently spending ~125ms three times during every
build (dumpvars, cleanspec, and the main kati run). Preserve the value
of TARGET_DEVICE_DIR from the dumpvars run so that we only need to run
the find commands once.
Bug: 78020936
Test: out/build-taimen.ninja is identical
Test: out/soong.log shows that we're not running these finds again
Change-Id: Iee56b454c3661de2b58c161169218ecaf2135398
I got a report of a user exporting CDPATH in their shell and causing
strange issues in the build. We should never need this value (and it
probably shouldn't be exported from the shell either -- that was their
workaround).
NDK_ROOT causes issues with Android.mk files thinking that they're
building with the ndk (like external/googletest/googletest/Android.mk).
Bug: 78933670
Test: CDPATH=. NDK_ROOT=test m; check out/soong.log
Change-Id: Icce43d7e31ed5e5e1fb7a4e37fd4dfbf421af4b1
Many board still have this problem, but if we can switch some over,
we'll prevent global problems and have the ability to clean boards up
one-by-one.
Bug: 77611511
Test: lunch aosp_arm-eng; m nothing
Test: lunch aosp_marlin-eng; m nothing
Test: build_test on all downstream branches
Change-Id: I78bee44adde2059d01188658b9050927748d2028
Some people have run into issues where /tmp is on a smaller partition
than their main source tree, and if it fills up (or only has a few GB
free), their builds can start failing.
There may also be a subset of people whose /tmp may be slower than their
out directory -- if they put their src and out trees on a SSD, but keep
/tmp on a spinning HDD.
Bug: 71755844
Test: check out/soong.log for TMPDIR
Test: do a build, watch out/soong/.temp
Change-Id: Ib749ec736ad0f6c8ce7453861a91b3e99ddbd92d
If Kati ever wrote a line over 64k characters, the scanner in soong_ui
would error, and Kati would hang trying to write into the pipe. Now if
the Scanner errors out, fall back to copying directly from the pipe to
the output.
Test: Add $(warning $(shell find frameworks)), does not hang
Change-Id: I86412ad2f53f2fe3cbda901ee673abb904d56d3c
Soong_UI will update timestamp to build_date.txt, and export variables
to kati/ninja.
Test: m -j32
Bug: b/70351683
Change-Id: I153897afdf2d3f39a32d757d4c3ae7515caea52d
We were previously setting GOROOT to "prebuilts/go/linux-x86" during the
ninja executions when we were running Soong. But we can also run Soong
during the main ninja execution, were GOROOT was unset. When the GOROOT
was unset, the default GOROOT in our Go installation is
"./prebuilts/go/linux-x86" (note the extra ./).
This would cause g.bootstrap.goRoot to change between some soong runs,
causing us to rebuild all go programs (and anything depending on them)
more often than necessary.
So instead, keep GOROOT undefined when running Soong. Everything that
matters is using runtime.GOROOT(), which will fall back to the default.
Continue setting $GOROOT for bootstrap.bash, otherwise it fails when
there is no system provided go binary. What we give bootstrap.bash
doesn't really matter, since we don't actually use the blueprint wrapper
in Android.
Test: m blueprint_tools; touch bionic/libc/tzcode/new.c;
m blueprint_tools <doesn't rebuild everything>
Change-Id: I82f30c7c3b5d25e5cbf28fe37a97fdb776c4a164
This ensures that the current locale supports UTF-8, and that we're
getting a consistent (but still supported by the system) locale for
every configuration except user-facing messages. This should eliminate
any reproducibility problems around sorting, formatting, etc for all
built products, while still showing localized error messages where
available.
Bug: 71573630
Test: LANG=es_ES LANGUAGE=es: m (check env in soong.log)
Change-Id: If33311899eaed8c44573113ee35c5a71cee503a0
This way we strip out ANSI codes when using dumb terminals. It's likely
overkill to use katiRewriteOutput, but we should rarely see any output
on stderr while dumping variables. This also lets us turn on kati_stats.
Bug: 71729611
Test: lunch missing-eng (colored error)
Test: lunch missing-eng 2>&1 | cat (non-colored)
Test: TERM=dumb lunch missing-eng (non-colored)
Change-Id: Ic63fd42d82a4a64e5c68aecd9ae0f242a0d703f1
This architecture only existed for unbundled use, but even the NDK is
removing support in their r17 release, so just remove support for it.
Test: build/soong/build_test.bash -only-soong
Change-Id: I4bd23babf567128d2d242cbdee3311abb198dd7c
This is cherry-picked from attempt 3, which was reverted
due to http://b/70862583.
Before this CL topic, the build toolchain for .java source files
used OpenJDK 8, targeting 1.8 (v52 class files) by default.
This CL topic switches the default to OpenJDK 9, but still
targeting 1.8 (v52 class files) by default. If USE_ERROR_PRONE
is set to true, then the default remains OpenJDK 8.
Code in the Android platform should generally be unaffected,
but if host tools that are now compiled and run using
OpenJDK 9 are causing problems for your team, then let me
know.
To manually switch back to the old behavior for now (continue
using OpenJDK 8), run this command in your shell:
export EXPERIMENTAL_USE_OPENJDK9=false
Bug: 69449021
Test: Treehugger
Test: art/test/testrunner/run_build_test_target.py -j40 art-interpreter
Test: dalvik/dx/tests/run-all-tests
(cherry picked from commit 13f23a2753)
Change-Id: I57abae73f9bdb21ef004a5118ff0e4ef70418ed9
Merged-in: Iac78122f58df0ebbb55134d55021ce6c57351b5f
Previously, these variables were exported only by makevars.go,
but those values are not available to config.mk. This CL adds
the variable to ui/build/config.go, which also makes it
available to config.mk.
Test: Treehugger
Bug: 70862583
Bug: 70521453
Change-Id: Ib54660e4b08ab751265b30004630cf1bb8c0041b
After this revert CL topic, the default toolchain for Android
goes back to being OpenJDK 8.
This revert is being prepared ahead of time in case of
any problems with CL topic:
https://r.android.com/#/q/topic:bug69449021_attempt2
Bug: 69449021
Test: Treehugger
Change-Id: I9ead8d569226bd487baee3c6d5be9ec7033eb56a
(This is cherry-picked from the first attempt to submit this CL
topic, which was reverted after 3 hours because of bug 70286093;
robolectric 3.{1.1,4.2} now stick with OpenJDK 8 to avoid that bug).
Before this CL topic, the build toolchain for .java source files
used OpenJDK 8, targeting 1.8 (v52 class files) by default.
This CL topic switches the default to OpenJDK 9, but still
targeting 1.8 (v52 class files) by default. If USE_ERROR_PRONE
is set to true, then the default remains OpenJDK 8.
Code in the Android platform should generally be unaffected,
but if host tools that are now compiled and run using
OpenJDK 9 are causing problems for your team, then let me
know.
To manually switch back to the old behavior for now (continue
using OpenJDK 8), run this command in your shell:
export EXPERIMENTAL_USE_OPENJDK9=false
Bug: 69449021
Test: Treehugger
Test: Running robolectric tests succeeds on internal-master
after cherry-picking this CL topic, using the command
line from http://b/70286093#comment1
(cherry picked from commit 0ae8b548af)
Change-Id: Ide6a7e55126d919a44f89ef8e0bd14fb12ff470e
to enable other subprojects to use their own instance of
Blueprint in other directories.
Files named Android.bp are still autodetected throughout the
tree like previously.
Bug: 64363847
Test: mkdir -p subdir \
&& echo "syntax error" > Blueprints \
&& m -j nothing
Test: build/soong/scripts/diff_build_graphs.sh \
--products=aosp_arm \
'build/soong:work^' 'build/soong:work'
Change-Id: I8199f12b68dc1699bf44682b86169def37b53a5e
After this revert CL topic, the default toolchain for Android
goes back to being OpenJDK 8.
This revert is being prepared ahead of time in case of
any problems with original change topic,
https://r.android.com/#/q/topic:bug_69449021
Bug: 69449021
Test: Treehugger
This reverts commit 0ae8b548af.
Change-Id: Ief7646a94f1a264085cd299b4327d244b78a1537
Before this CL topic, the build toolchain for .java source files
used OpenJDK 8, targeting 1.8 (v52 class files) by default.
This CL topic switches the default to OpenJDK 9, but still
targeting 1.8 (v52 class files) by default. If USE_ERROR_PRONE
is set to true, then the default remains OpenJDK 8.
Code in the Android platform should generally be unaffected,
but if host tools that are now compiled and run using
OpenJDK 9 are causing problems for your team, then let me
know.
To manually switch back to the old behavior for now (continue
using OpenJDK 8), run this command in your shell:
export EXPERIMENTAL_USE_OPENJDK9=false
Bug: 69449021
Test: Treehugger
Test: "make core-oj", checked that compilation now uses
OpenJDK 9 javac -target 1.8
Test: Checked that this is still compiled using OpenJDK 8.
export EXPERIMENTAL_USE_OPENJDK9=false
make core-oj
Change-Id: Ic87e9bb2a2e5da0ff13a2e51845b5365901c1507
This mostly reverts commit 178d5fefc0
and mostly reapplies change I6d3e52ef62c4cabe85b9a135a54de0e1a6aab29c .
Bug: 65683273
Test: build/soong/scripts/diff_build_graphs.sh \
--products=aosp_arm \
'build/blueprint:work^ build/soong:work^' \
'build/blueprint:work build/soong:work'
# and see that the only changes were:
# 1. adding some new files
# 2. changing some line numbers
Test: m -j nothing # which runs unit tests
Change-Id: I32baae00277a547fdcdd1c2219fe6625ee0e45d7
This reverts commit 63a250a336.
Reason for revert: Some failures:
namespace_test.go:648: dir1/Blueprints:2:4: a namespace must be the first module in the file
such as New Build Breakage: aosp-master/build_test @ 4475274
Change-Id: I1b5db8eb934e51ff22241bfca44199d886b1393b
Bug: 65683273
Test: build/soong/scripts/diff_build_graphs.sh \
--products=aosp_arm \
'build/blueprint:work^ build/soong:work^' \
'build/blueprint:work build/soong:work'
# and see that the only changes were:
# 1. adding some new files
# 2. changing some line numbers
Test: m -j nothing # which runs unit tests
Change-Id: I6d3e52ef62c4cabe85b9a135a54de0e1a6aab29c
This reverts commit fb941913a3.
Reapplies I4933187e8b72f2ef0c32d18ffea756e2c6fa417c with fixes
to disable the check for mac builds, where many modules are
disabled and the check is just going to cause more problems.
Test: m checkbuild
Change-Id: If6712c90ececd5d015fcdcdeefe0c3d4f5590711
Build target test_mapping will create a tarball of all TEST_MAPPING
files in source code based on the cached TEST_MAPPING.list
Bug: 69678490
Test: m -j blueprint_tools && cat out/.module_paths/TEST_MAPPING.list
Change-Id: Iba3479363137609d6631cf1851a8ce4613078f61
This fourth possible value currently has the same semantics
as a default/unset EXPERIMENTAL_USE_OPENJDK9, but allows
people to explicitly switch back to the old semantics when
the default changes.
Test: make showcommands core-oj (in environments with
EXPERIMENTAL_USE_OPENJDK9 set to "", "1.8", and "true").
Bug: 38177295
Change-Id: I25accf14344a05349a6e97572d7c2c1f6a7f2063
Get a list of leaf nodes in the dependency graph
from ninja, and make sure none of them are in the
output directory. This ensures that there are no
rules that depend on a file in the output directory
that doesn't have rule to generate it. The check
will catch a common set of build failures where
a rule to generate a file is deleted (either by
deleting a module in an Android.mk file, or by
modifying the build system incorrectly). These
failures are often not caught by a local incremental
build because the previously built files are still
present in the output directory.
Bug: 36843214
Bug: 68062417
Test: manual
Change-Id: I4933187e8b72f2ef0c32d18ffea756e2c6fa417c
This way config.mk no longer needs to check which java is in PATH and
fix it. It'll be consistent for all build steps under soong_ui.
Also unify handling of ANDROID_JAVA_HOME / JAVA_HOME with
OVERRIDE_ANDROID_JAVA_HOME / EXPERIMENTAL_USE_OPENJDK9.
Test: m nothing
Test: build/soong/soong_ui.bash --make-mode nothing (w/o envsetup.sh)
Test: aosp_arm ninja files are the same before/after
Test: before/after ninja files match with OVERRIDE_ANDROID_JAVA_HOME
Test: before/after ninja files match with EXPERIMENTAL_USE_OPENJDK9
Change-Id: Icdb65093d9c346524074de239a4f895e4230a24d
This may happen if there's been another call to microfactory before
we've read the log file. Just ignore the error and continue.
Test: Run `while true; do get_build_var TARGET_PRODUCT; done` in parallel
Change-Id: I670144f4637281ebf1299dbd9151dd9819c363e3
Create a lock file during log rotation so that multiple processes won't
step on each other.
Test: Run `while true; do get_build_var TARGET_PRODUCT; done` in parallel
Test: m blueprint_tools
Change-Id: I7144cd42aca47c694487ddae44713f82665ed81e
build/soong/soong_ui.bash --dumpvars-mode \
--vars="..." \
--abs-vars="..." \
--var-prefix="..." \
--abs-var-prefix="..."
is similar to the previous:
CALLED_FROM_SETUP=true BUILD_SYSTEM=build/core \
make -f build/core/config.mk dump-many-vars \
DUMP_MANY_VARS="..." \
DUMP_MANY_ABS_VARS="..." \
DUMP_VAR_PREFIX="..." \
DUMP_ABS_VAR_PREFIX="..."
and
build/soong/soong_ui.bash --dumpvar-mode [--abs] VAR
is similar to the previous:
CALLED_FROM_SETUP=true BUILD_SYSTEM=build/core \
make -f build/core/config.mk dumpvar-[abs-]-VAR
But uses soong_ui and ckati, so that we use a consistent make parser and
sandboxing configurations.
One major output difference between the pure make implementation and
this one is that report_config in Go is implemented using embedded
newlines in single quotes, while the make implementation uses `` with
embedded echo commands. This seems to work fine for both bash and zsh,
and report_config isn't meant to be machine-parsed anyways.
Test: build/soong/soong_ui.bash --dumpvar-mode report_config
Test: build/soong/soong_ui.bash --dumpvar-mode TARGET_DEVICE
Test: build/soong/soong_ui.bash --dumpvar-mode --abs PRODUCT_OUT
Test: build/soong/soong_ui.bash --dumpvar-mode --abs ALL_PRODUCTS
Test: build/soong/soong_ui.bash --dumpvars-mode --vars="report_config TARGET_DEVICE" --abs-vars="ALL_PRODUCTS"
Test: build/soong/soong_ui.bash --dumpvars-mode --vars=TARGET_DEVICE --abs-vars=PRODUCT_OUT --var-prefix=v_ --abs-var-prefix=a_
Change-Id: I0fbd0732bbf6fcfcd24084cf3c830a91a4b6bfc2
This reverts commit a3e6c520ac. I fixed
a few heavy stack users, and we've got better debugging.
Bug: 36182021
Test: m dist
Change-Id: Iefd8589185720e44c40a2e0ceff5fd1438211b86
Pass --dump-stats to ckati, but filter out the '*kati*' lines so that
they only end up in our verbose output. That way we've always got access
to the statistics.
Bug: 36182021
Test: m nothing; cat out/soong.log
Change-Id: Iaf7a814fc67f3e475c913faf69924a7f4e2ae3b3
This speeds up dumping make variables from ~380ms using make to ~220ms
using ckati. It also means that we're consistently using the same parser
for builds (with the same .KATI_READONLY/etc extensions).
envsetup.sh (lunch) / other scripts still use make, changing those to go
through soong_ui will be a future change.
Test: m clean; m nothing
Test: USE_GOMA=true m nothing
Test: m PRODUCT-aosp_x86-sdk
Test: m APP-Calculator
Test: build/soong/build_test.bash -only-config (on AOSP and internal master)
Change-Id: I6ca554de8de4955fb869001d06d29969b75751cc
They don't really affect anything general in android except for the
output path.
Bug: 65453318
Test: TARGET_BUILD_TYPE=debug m
Change-Id: I98c17fefae61f9f7936e184bd1f8441086bb7d23
Instead of pairing the reading of CleanSpec.mk files with the reading of
Android.mk files, split them into separate, individually cachable steps.
This way we only read Android.mk files once after a clean/sync. We'll
still read the CleanSpec.mk files multiple times, but that's
significantly faster than reading all the Android.mk files.
This adds about 50ms if kati doesn't need to reread the CleanSpec.mk
files. Reading all the CleanSpec.mk files takes about a second.
Bug: 35970961
Test: m clean; m nothing; m nothing
Test: Add CleanSpec.mk line, see it executed.
Change-Id: I83bad15c50709510959d5b8b673a907b8aa7de82
Kati sets detect_leaks=0 by default now.
Test: unset ASAN_OPTIONS; SANITIZE_HOST=address m nothing
Change-Id: I0cbf04ae9ed40de520abca3fb35c65e7f543682d
We can call directly into the blueprint bootstrap.bash using values that
soong_ui has already calculated.
Instead of calling into blueprint.bash, build minibp with microfactory,
and directly run ninja. This allows us to get individual tracing data
from each component.
Test: m -j blueprint_tools
Test: m clean; m -j blueprint_tools
Change-Id: I2239943c9a8a3ad6e1a40fa0dc914421f4b5202c
The Finder runs roughly 200ms faster than findleaves.py in aosp,
and runs roughly 400ms faster in internal master.
Bug: 64363847
Test: m -j
Change-Id: I62db8dacc90871e913576fe2443021fb1749a483
This reverts commit b6d161bf16.
Reason for revert: New Build Breakage: aosp-master/sdk_mac @ 4260825
Change-Id: I8bda8c50c5e5c9f84621d11a4c15b168833bcd21
This way we only have one way to start a build, which always has logging
/ tracing / etc, even if we don't need Kati.
There's two ways to use this:
As a direct replacement for mkdir out; cd out; ../bootstrap.bash;
./soong -- as long as --skip-make is always passed, we'll never run
Kati, and Soong will run outside of it's "make" mode. This preserves
most of the speed, and allows full user control over the Soong
configuration.
A (experimental, dangerous) way to temporarily bypass the product
variable and kati steps of a build. As long as a user is sure that
nothing has changed from the last build, and they know exactly which
Ninja targets they want to build (which may not be the same as the
arguments normally passed to 'm'), this can lead to shorter build
startup times.
Test: rm -rf out; m --skip-make libc
Test: rm -rf out; m libc; m --skip-make libc
Test: rm -rf out; mkdir out; cd out; ../bootstrap.bash; ./soong libc
Test: build/soong/scripts/build-ndk-prebuilts.sh
Change-Id: Ic0f91167b5779dba3f248a379fbaac67a75a946e
It can find every Android.bp in internal master in
about 2.5 sec the first time and 0.3 sec subsequent times
Bug: 62455338
Test: m -j blueprint_tools # which runs the unit tests
Test: m -j blueprint_tools && \
out/soong/host/linux-x86/bin/finder \
-v
--db /tmp/mydb \
--names Android.mk \
--prune-files .android-out-dir \
--exclude-dirs .git,.repo \
. \
>/tmp/finder-log 2>&1
Change-Id: I5ab2650459a1dae0d5d076faf411ec2d053c743d
Instead of calling SetNinjaBuildDir, pass it to bootstrap.bash, so that
the bootstrap package can set it consistently during bootstrapping and
normal execution.
Bug: 63720725
Test: m -j nothing
Test: mkdir o; ../bootstrap.bash; ./soong
Change-Id: Ica88d2d5f1461b5be49bfe6316c6ec4ef4d89d49
The build now uses a prebuilt javac binary distributed with the
source, checking the host java version is no longer required.
Reapplies Ieef83481d0e6d68371bbd8a422f870ffe2bbb428 after updating
some more manifests to include the prebuilts.
Test: m -j checkbuild
Bug: 62956999
Change-Id: I774dbb75c8ae2ff1a990423a3827c77886e44779
(cherry picked from commit c6f07f00da)
The build now uses a prebuilt javac binary distributed with the
source, checking the host java version is no longer required.
Test: m -j checkbuild
Bug: 62956999
Change-Id: Ieef83481d0e6d68371bbd8a422f870ffe2bbb428
MAKELEVEL and MAKEFLAGS were are both unset by makeparallel when invoked
from Make. In preparation for removing the Make wrapper (and
makeparallel), strip them in soong_ui as well.
Add MFLAGS for completeness.
Test: m -j
Change-Id: I029f9464d11b432e979b32ede360450f4facb038
Make supports specifying all types of variables on the command line
(using =, :=, +=, and other variable references. When running soong_ui
through make/makeparallel these all effectively become environment
variables.
So in preparation to remove the Make wrapper, support a simplified form
of this syntax, roughly equivalent to what the shell supports if
specified before the command (<NAME>=<VALUE>).
Test: m -j blueprint_tools
Change-Id: I08fa2b86710f282e619b0cc324a3e5bbaf62d26e
In preparation to remove Make/makeparallel from soong_ui startup, we
need to preserve compatibility with the different ways that make
supports the -j option.
Nothing changes unless Make/makeparallel is removed from the startup.
Once that is removed, not specifying a -j value will be equivalent to
'-j' instead of '-j1', like Ninja. A value will also be supported when
specifying -k, like Ninja (though specifying it alone will be equivalent
to '-k 0').
Test: m -j blueprint_tools
Change-Id: I9d5d59bedd4f6e5cca76bdb4cd47e0b5b7d523f0
This causes Soong to put the outputs of each genrule into a temporary
location and copy the declared outputs back to the output directory.
This gets the process closer to having an actual sandbox.
Bug: 35562758
Test: make
Change-Id: I8048fbf1a3899a86fb99d71b60669b6633b07b3e
This doesn't catch all the possible causes of timeouts,
(like if Ninja is only partially stuck or if Kati is stuck)
but it should clarify some causes of stuckness
Bug: 62065855
Test: m -j showcommands NINJA_HEARTBEAT_INTERVAL=500ms
Change-Id: I73a792ae91873b19d7b336166a2d47f37c549906
I removed *.txt from the installclean list yesterday, but it turns out
that android-info.txt being removed was the only thing triggering
system.prop to be rebuilt on the incremental build servers. So continue
android-info.txt so that the version information in system.prop is
correct.
I'll follow this up with a more complicated change to make the
system.prop generation depend on the build number/versions more
directly, but that's a more complicated change since we need to change
how the build number file is written.
Bug: 62252890
Test: m ...intermediates/system.prop; m installclean; m ...intermediates/system.prop
Change-Id: I25dd8ddd99f7b2c927a8cbfb7f1aca1dd3e82a82
For *.ini/*.txt files we should be recreating them as the instructions
change, so we shouldn't need to remove them. The biggest reason to
remove them is that the auto-installclean was removing
$PRODUCT_OUT/build_fingerprint.txt just after Kati wrote it out, causing
the fingerprint to be blank on builds where the auto installclean code
ran.
There's no reference to xlb in our tree, and it's been around since the
beginning of git history, so remove it.
Bug: 62224537
Test: lunch aosp_arm-eng; m nothing;
lunch aosp_arm-userdebug; m -j nothing;
check out/target/product/generic/build_fingerprint.txt
Change-Id: Id391af5c7d95ea78e4e68fae294d8295fccb1964
By default, the Android build enforces an OpenJDK 8 toolchain,
whose name contains the strings "openjdk" and "1.8".
After this CL, the check can be changed to enforce a toolchain
name starting with "9" and without the need for "openjdk" having
to occur in the name.
This experimental new check can be enabled by running:
export EXPERIMENTAL_USE_OPENJDK9=true
To switch back to the standard check, run:
unset EXPERIMENTAL_USE_OPENJDK9
Test: make ANDROID_COMPILE_WITH_JACK=false checkbuild tests \
&& make checkbuild tests
(with OpenJDK 8u45 toolchain on the PATH)
Test: make EXPERIMENTAL_USE_OPENJDK9=true \
ANDROID_COMPILE_WITH_JACK=false checkbuild
(with jdk 9-ea+170 toolchain on the PATH)
Bug: 38177295
Change-Id: I75de3e23fe0b7f41eb6dd3f55dadd3fa3c3383bd
This flag allowed for building with an OpenJDK 7 toolchain. It was
used for build bot builds that now work with an OpenJDK 8 toolchain.
Hence, this feature is no longer required. This CL drops it.
Bug: 27583810
Test: Treehugger build succeeds.
Change-Id: Iba9cf12cff2597fa70aa9999e8a6bda190f29f3c
This speeds things up a little bit, but the major win is that we don't
need to recursively call into the build during the auto installclean.
Test: m -j installclean
Test: m -j dataclean
Change-Id: I09ded8dbd8a2015c7848bc0042dfd3adad1b31c9
This way kati won't need to be run as often (either initially, or when
switching products with the same device).
Bug: 35970961
Test: m clean; m -j blueprint_tools; m -j blueprint_tools; m -j blueprint_tools
Test: lunch aosp_arm-eng; m -j blueprint_tools; lunch full-eng; m -j blueprint_tools; <repeat>
Change-Id: Ie9fca3c8f1dd412459ea47c7090c7c5fdb0bcf6e
When kati keeps state around, it has to regenerate the ninja file every
time the state is changed. So move the java version checking into
soong_ui, where we can parallelize it with other operations instead of
only checking it occasionally.
Bug: 35970961
Test: Put java7 in PATH, m -j
Test: Put java8-google in PATH, m -j
Test: Put a space in TOP, m -j
Test: OUT_DIR=<case-preserving fs> m -j
Test: OUT_DIR=<path with space> m -j
Test: DIST_DIR=<path with sapce> m -j
Change-Id: I3245c8dd6d856240d17d54cb05d593dc9df71a27
It now uses the same output style as ninja, overwriting status lines in
smart terminals.
Test: multiproduct_kati
Test: multiproduct_kati | cat
Change-Id: I8db5198ffdc5ebc5503241ac492379753d92978e
So that we don't have to load up all the makefile state just to remove
the output directory.
Starting from a completely empty out directory:
kati: 16s
soong_ui: 2.0s
From a minimal out directory (m -j blueprint_tools):
kati: 3.8s
soong_ui: 0.4s
Test: m -j clean
Test: m -j clobber
Change-Id: Ibeec6fbfa29387750342a752a55336caca4b3992
Otherwise Make and soong_ui disagree about where the soong.variables
file should be. For example, when "OUT_DIR=out/":
Error dumping make vars: Failed to parse make line: "make: Nothing to be done for `out/soong/soong.variables'."
We would need to pass out//soong/soong.variables into make, since it
doesn't attempt to match clean/unclean paths.
Bug: 37553659
Test: OUT_DIR=out/ m -j
Change-Id: Iebeea4868b96b11e8b08735f272e22be5db1d701
We're seeing some rare crashes that appear to be stack overflows. To get
better debugging, use the asan version of ckati when 'dist' is
specified.
Bug: 36182021
Test: m -j
Test: m -j dist
Test: make -j dist (w/o lunch)
Change-Id: Ic3a5590974bfd718bf1929355d344b5933ac1d4f
Wrap os/exec.Cmd to use our Context and Config interfaces for automatic
logging and error handling. It also simplifies environment modification
based on the Config's environment.
This also adds sandboxing on Macs using sandbox-exec. A simple profile
is provided that only logs on violations, though multiproduct_kati on
AOSP has no violations. This isn't applied to ninja, only make / soong /
kati to start with. I measured <5% time increase in reading all
makefiles, and no noticable difference when kati doesn't regenerate.
I'd like to spin up a process to dump violation logs into our log file,
but the log reporting changed over the range of Mac versions that we
support, so that's going to be more complicated. Opening Console.app
works in all cases if you're local -- just search/filter for sandbox.
Linux sandboxing will be implemented later -- the sandbox definition is
opaque enough to support a different implementation.
Test: multiproduct_kati on AOSP master on Mac
Change-Id: I7046229333d0dcc8f426a493e0f7380828879f17
I missed this when converting to soong_ui.
Test: m -j blueprint_tools (check soong.log)
Test: SANITIZE_HOST=address m -j blueprint_tools
Change-Id: I01eb567db6848dc36dd679557291a4e600a63bba
We keep having makefiles reading $DISPLAY, and GREP_OPTIONS with
--color=always has caused problems with shell commands in the past.
Bug: 37333696
Test: GREP_OPTIONS="--color=always" m -j
Test: DISPLAY=test m -j (modify an Android.mk to check DISPLAY)
Change-Id: Iafab37d61ecde5c6fdb35a05f18709abc17e8554
To allow to inject a wrapper program for compiling java code, let
me allow soong to export JAVAC_WRAPPER.
Test: Set JAVAC_WRAPPER and ANDROID_COMPILE_WITH_JACK=false envs,
Test: and make -j 32
Change-Id: Ib77fe00bd781f8f4ddf965c5e7905eab466a057a
Currently, Kati is the only one that is respecting OUT_DIR_COMMON_BASE,
causing the build to fail when ninja tries to match up the Soong and
Kati ninja files.
The soong_ui.bash script change is necessary to move the microfactory
built outputs to the correct location.
The config.go change takes care of setting OUT_DIR in the environment of
every subprocess, so that we could remove the OUT_DIR_COMMON_BASE
handling from Make once the USE_SOONG_UI=false path goes away.
Bug: 35929763
Test: m -j blueprint_tools
Test: OUT_DIR=... m -j blueprint_tools
Test: OUT_DIR_COMMON_BASE=... m -j blueprint_tools
Change-Id: I4184f2b4392d32c5bea51e51162a48df0e5c90d5
We can start removing out directories again in multiproduct_kati, since
the opendir bug has been fixed.
Add --color_warnings to the Kati command line. Since this is different
from Make, take this opportunity to reorder the command line to make
more sense. This wasn't done before because kati forces a regen whenever
the command line changes.
Test: USE_SOONG_UI=true m -j blueprint_tools
Change-Id: I5ad03359fbc16db482722946202297c1ae0f2b90
Bug: 35214134
Test: ctrl-C during build
Test: add for{} to hang soong_ui in multiple places, ensure it exits
Change-Id: Ic71eedd4b1814ab2f3c441ae61a97570eda4fe16
1. Collapses the "including .../Android.mk ..." lines like ninja does,
so that we overwrite the last line if there wasn't anything else to
print.
2. Strips ansi control codes so that log files don't include unreadable
characters.
Test: m -j
Test: m -j | tee output.log (with colored output)
Change-Id: Ib18437f6f9d37084360097a9d586800c833072c5
For proper ninja smart terminal support, we need to pass stdin to
./soong. Otherwise it starts a new line if the terminal isn't wide
enough.
Test: `rm -rf out/soong/.bootstrap; m -j` in narrow terminal
Change-Id: I643a526001adc2323a420a03fa1df282554c7886
This creates a rotating build.trace.gz in the out directory that can be
loaded with chrome://tracing. It'll include start and end timings for
make/soong/kati/ninja, and it will import and time-correct the ninja log
files.
Test: m -j; load out/build.trace.gz in chrome://tracing
Test: multiproduct_kati -keep; load out/multiproduct*/build.trace.gz
Change-Id: Ic060fa9515eb88d95dbe16712479dae9dffcf626
This is a replacement for build/tools/kati_all_products.sh using the new
Soong ui/build package. It doesn't even attempt to run ninja, and it can
be configured to run only the product config, or only the product config
and Soong.
For AOSP on my machine:
-only-config 1.4s
-only-soong 1m20s
<none> 13m
Test: multiproduct_kati
Change-Id: Ie3e6e7bdf692e46a8b8eb828f437190f8003500b
Right now this mostly just copies what Make is doing in
build/core/ninja.mk and build/core/soong.mk. The only major feature it
adds is a rotating log file with some verbose logging.
There is one major functional difference -- you cannot override random
Make variables during the Make phase anymore. The environment variable
is set, and if Make uses ?= or the equivalent, it can still use those
variables. We already made this change for Kati, which also loads all of
the same code and actually does the build, so it has been half-removed
for a while.
The only "UI" this implements is what I'll call "Make Emulation" mode --
it's expected that current command lines will continue working, and
we'll explore alternate user interfaces later.
We're still using Make as a wrapper, but all it does is call into this
single Go program, it won't even load the product configuration. Once
this is default, we can start moving individual users over to using this
directly (still in Make emulation mode), skipping the Make wrapper.
Ideas for the future:
* Generating trace files showing time spent in Make/Kati/Soong/Ninja
(also importing ninja traces into the same stream). I had this working
in a previous version of this patch, but removed it to keep the size
down and focus on the current features.
* More intelligent SIGALRM handling, once we fully remove the Make
wrapper (which hides the SIGALRM)
* Reading the experimental binary output stream from Ninja, so that we
can always save the verbose log even if we're not printing it out to
the console
Test: USE_SOONG_UI=true m -j blueprint_tools
Change-Id: I884327b9a8ae24499eb6c56f6e1ad26df1cfa4e4
Elliott Hughes