cc_test without sanitize:memtag_heap acts as if it has implicit
sanitize{memtag_heap:true, diag:{memtag_heap:true}}. This is unaffected
by SANITIZE_TARGET.
Refactor the test to cover all permutations.
Change memtag include lists to act similar to SANITIZE_TARGET_DIAG: the
the sync include list upgrades async targets to sync, unless diag is
explicitly set to false in the target definition.
Bug: b/135772972
Test: cc_test.go
Change-Id: I6a969f2f5804cd5f47fc4e93a20e3b99ea5fa111
The vendor snapshot header globs were repeated 9 times, once for each
possible header suffix. Globbing is not a fast operation, so this
took 9.68s of CPU time in my AOSP builds. Replace it instead with a
single glob, followed by filtering down to the desired header
extensions.
Test: m checkbuild
Change-Id: I9c8f8cdad8cbffc0a42217659a48dd9d676e4e4c
Windows prefer32 was implemented in cc, which caused a mismatch
between cc and other packages like python. This manifested as
missing variant when a python_test_host with compile_multilib: "first"
tried to depend on a cc_binary_host, which implicitly has multilib
"first".
Fixes: 177904375
Test: m checkbuild
Change-Id: Iaaac16ae171c06d90d04d7cac11789d3f39b8d99
* WITH_TIDY=1 should not include clang-analyzer-* checks
because they are too slow.
* Nightly builds will use both WITH_TIDY=1 and
CLANG_ANALYZER_CHECKS=1.
Bug: 173736193
Test: make with WITH_TIDY=1 and CLANG_ANALYZER_CHECKS=1
Change-Id: I3885fd0e20475ceee5e3798bffc11a61994ac113
Native bridge modules never need to build against NDK stubs, so
don't create SDK variants. Also clear the sdk_version property
for modules that don't have SDK variants so that later code doesn't
use it to trigger SDK behaviors.
Test: m checkbuild
Change-Id: I1920fa82e9fab06235f01a62624382efa16cc6e3
Vendors can now generate only needed modules by setting the following
Makefile variables:
- DIRECTED_VENDOR_SNAPSHOT: set to true
- VENDOR_SNAPSHOT_MODULES: list of snapshot candidates
e.g.
DIRECTED_VENDOR_SNAPSHOT := true
VENDOR_SNAPSHOT_MODULES := toybox_vendor sh_vendor libbase libcutils ...
Bug: 157967325
Test: m dist vendor-snapshot after setting those in BoardConfig.mk
Change-Id: I6515a43d9358d94483d7c7fa2b066f9dd457f6aa
Instead of unreliable giant if clause, it's enough to check dependency
between platform (system, system-ext), product, and vendor.
Test: sysprop_test soong test
Test: link against host_supported sysprop_library and use internal props
Change-Id: I7bd5df00b302fa261eff5120106aacc3df93c1b2
* clang-analyzer is slow and enables clang-diagnostic-padded,
which cannot be suppressed yet.
Test: make with WITH_TIDY=1 for crosshatch-userdebug
Change-Id: I20193f0db3154b037d58c5ca012a9e753b176722
* This allows local projects to enable clang-tidy
and catch errors in a default build, but allows
all warnings in a global build with WITH_TIDY=1.
Test: make with WITH_TIDY=1
Change-Id: I92a10af24b23ee9f04eebb0513e8f611dd7dcf59
This change turns -Wunguarded-availability option which enforces calls
to APIs which are introduced after the min_sdk_version of the
compliation unit to be guarded with __builtin_available check. For
example, let's assume that we have foo() which was introduced with API
level 30.
void foo() __INTRODUCED_IN(30);
Then if foo() is called for a module whose min_sdk_version is less than
30, say 26, it should be called as below:
if (__builtin_available(android 30, *)) {
foo();
} else {
// fallback impl
}
For modules whose min_sdk_version is >=30, the guard is not required.
Bug: 150860940
Bug: 134795810
Test: m
Change-Id: I084148b9a051350626a37cb394daa4398b7332d5
The change will detect if a module is compiled against cfi support, and
will usebuild the coverage build against the libprofile that supports cfi. This is to resolve compilation errors when
building against modules with cfi support.
Bug: 177098919
Test: forrest build for cf_x86_phone-userdebug_coverage http://go/forrest-run/L81700000786828933
Change-Id: I8e0421cdf1c6e499292cfa3457cefd3c42f13155
Merged-In: I8e0421cdf1c6e499292cfa3457cefd3c42f13155
The check no longer tracks private dependencies like stubImplDepTag and
staticVariantTag. It also doesn't do the check for double_loadable
libraries that are not depended on by a LLNDK library.
Bug: N/A
Test: m
Test: add 'double_loadable: true, gen_trace: true` to an aidl_interface
module. The build doesn't break.
Change-Id: Iccd1a9d445a48d03c373708ba1bdd34b9a7f152d
For the platform libc++ STL, remove the
-Wl,--exclude-libs,libunwind_llvm.a argument, which is redundant with
the same argument in deviceGlobalLdflags.
Bug: http://b/153025717
Test: device boots
Change-Id: Idd7791d52f74aab2d5f59419fb75f841fc29a2eb
Move the global lists of VNDK modules into boolean properties on the
modules themselves, and use the new SingletonModule functionality
to visit all modules and collect the list of modules with the properties
set.
Bug: 176904285
Test: all soong tests
Test: m checkbuild
Test: compare Soong outputs
Change-Id: Icf7e2f8f190a517d30f0780e98762bc0084ddb24
Previously, for cc_* modules, __ANDROID_API__ tracked the sdk_version
property. This however has caused a few number of problems:
1. It's confusing. __ANDROID_API__ has meant minSdkVersion. Therefore
the sdk_version property should mean minSdkVersion (since the macro
tracks the property). However, the introduction of the new
min_sdk_version property (which is currently for APEX) made this very
confusing. Also, this is not consistent with the java_* modules where
sdk_version means compileSdkVersion.
2. This is preventing go/android-future-symbols. The plan is to make the
APIs that are above the minSdkVersion available as weak symbols.
Previously those APIs had to be accessed via dlsym because they are
hidden behind the __ANDROID_API__ macro at build-time. To use make the
APIs visible at build-time, the module authors had to __ANDROID_API__
beyond their minSdkVersion. This is against the definition of
__ANDROID_API__.
To solve above problems, __ANDROID_API__ now correctly tracks
min_sdk_version. In addition, min_sdk_version now defaults to
sdk_version. Therefore, most of the modules that don't set
min_sdk_version aren't affected by this change.
Bug: 163288375
Test: m
Change-Id: I645e6bb1234c27ae0a69b7b87a59206cfd350744
Memtag_heap adds an ELF note that enables MTE heap tagging in
bionic/scudo. Ignored on non-executables. With diagnostic
(diag:{memtag_heap:true}) enables the SYNC mode, otherwise - ASYNC mode.
Memtag_heap defaults to set (with diag) on cc_test targets, unset
otherwise. Ignored on non MTE-compatible hardware.
Bug: b/135772972
Test: soong tests
Change-Id: I88fd0f159e609e17bd13487749980a1ba02cb91c
Adds a PlatformSanitizable interface which both CC and Rust can
implement so that the sanitizer mutators in CC can sanitize Rust
shared/static libraries appropriately.
Bug: 147140513
Test: m nothing
Change-Id: Ib31103b6c4902a4d5df2565c0d7c981298d100a3
As we replaced '(vendor|product)_available: false' with
'vndk.private: true', update the soong comments with it.
Bug: 175768895
Test: na
Change-Id: Iaa08d0caf2995d2327443e156abe8448c4e500c5
The LLNDK vendor variants need to exist even when the VNDK is not
being used in order for the next patch to list them once the global
maps are removed.
Bug: 176904285
Test: m checkbuild
Change-Id: Ib29ede455d5b6a4b7d3f4685db8fba6d32025314
Bug: 176998722
Test: built fuzz target with these options specified, checked resulting
config.json
Change-Id: Id38668dd11e76eead4ec87bd225ba67e3b30b80d
In case of VNDK, 'vendor_available: false' had a special meaning that
defines VNDK-private libraries. It is not trivial because not
defining a boolean property means 'false' normally. To avoid the
confusion replace it with the 'vndk.private: true' for VNDK-private
libraries and 'private: true' for LLNDK-private libraries.
All VNDK libraries must define 'vendor_available: true' and may have
'vndk.private: true' if they are VNDK-private.
With this change '(vendor|product)_available: false' is the same as
not defining the property.
LLNDK-private must define 'private: true' instead of
'vendor_available: false'.
Bug: 175768895
Test: build
Change-Id: I57fbca351be317257d95027f3cdcdbbe537eab23
A fake vendor snapshot is a vendor snapshot whose prebuilt binaries and
captured headers are all empty. It's much faster to be built than the
real vendor snapshot, so users can exploit the fake vendor snapshot to
reduce the size of vendor snapshot they need, by installing the fake
snapshot and then inspecting the ninja dependencies.
Bug: 157967325
Test: m dist vendor-fake-snapshot
Change-Id: I5e16e8dbbf9dd5e753cdd471ca73d06984a6cb2c
Replace the vndk_libraries_txt module type with llndk_libraries_txt,
etc. in preparation for making it a new SingletonModule, which will
only work with a single instance of the module type.
Bug: 176904285
Test: m checkbuild
Change-Id: Ie010a9eeee8f5849201aa4ab4eb9b2e7a9cd7d5b
llndk_library modules were not calling module.Init(), which caused them
not to register ModuleBase.VendorProperties. Unregistered property
structs lose their values during cloning, which caused the shared
variants of llndk_library modules to not have IsLLNDK set.
Call module.Init(), which registers ModuleBase.VendorProperties. Also
add a helper function to filter out llndk_library modules that now
show up in the list of modules with IsLLNDK set.
Bug: 170784825
Test: m checkbuild
Change-Id: Iafde85f6a95e85a618f6f7d7a210398febb6b158
Also suppress a clang-tidy warning and a ubsan check to pass compilation.
Bug: 171348143
Test: build.
Change-Id: Ie5162c15df172cefd7cff9776e54531fd620bc23
The shared variant of a cc_library module depends on the static variant
of the same module. The dependency is just to optimize the build time by
not compiling the same source files twice. It doesn't mean that the
"static:" dependencies of the static variant are used to build the
shared variant. Therefore, the inter-variant dependency is considered
as NOT being in the same APEX.
Bug: N/A
Test: m
Change-Id: I7b8ff8e5bd5c9eb31fc4d8d18bd93dd80296fb81
Some VNDKs will be available to product modules by adding
'product_available' property. These VNDK libs will be listed in
vndkproduct.libraries.txt and tracked by the build system for the
changes. The product available VNDK list will be frozen by the
release process.
Bug: 174323911
Test: build
Change-Id: Ie1b085851413a8f2273925fefdc14fec3bfc7892
The property can be used to pass additional flags to the AIDL compiler.
For example,
cc_library {
..
srcs: ["Foo.aidl"],
aidl: {
flags: [
"-Werror", // warnings as error
"-Weverything", // turn on all warnings
],
},
}
Bug: 168028537
Test: soong test
Change-Id: I8120eeae7cd7b1acdd34c554af996a29e760a368
To avoid adding ubsan to the apex allowed_dep list, this commit adds a
check on depedency tags to see if apex check should be skipped.
The check is only used on sharedLib dependencies when diag mode are enabled
for sanitizers.
Bug: 158010610
Test: make build for aosp-sargo and aosp_cf_x86_phone-userdebug
Change-Id: I3d7dbb70d8c80ffae1854819cf8cf9e6b0b15c00
VNDK "mustUseVendorVariant" option checks only for the vendor
variant. Since the product variant of the VNDK is skipped from
installing, we don't need check product variant for
"mustUseVendorVariant" check.
Bug: 176268903
Test: m libxml2.product
m libxml2.vendor
Change-Id: I3b10f0579aceca1fb32fa4d6fb21dc020a35874d
To define VNDK-private libraries, we used `vendor_available: false`.
Because of it, `vendor_available == nil` had different meaning from
`vendor_available: false` for the VNDK libraries.
To clarify this, we change the logic for defining VNDK-private
libraries which was:
cc_library {
name: "vndk_private",
vendor_available: false,
product_available: false,
vndk: {
enabled: true,
},
}
It must be replaced with
cc_library {
name: "vndk_private",
vendor_available: true,
product_available: true,
vndk: {
enabled: true,
private: true,
},
}
Bug: 175768895
Test: m nothing
Change-Id: I81769f57c2231e54b682a28e4b82631ab9f3d390
With this patch, `vendor_available: true` will no longer creates
product variant. Instead, modules need to set `product_available:
true` if they have to be available to product vanriant.
If both properties are defined for VNDKs, they must have the same
values.
Bug: 150902910
Test: m nothing
Change-Id: I28fb6886e6114583227a31151136627c8516ac9c
Rewriting LLNDK dependencies with .llndk suffix requries referencing
a global data structure to determine if a given library is an LLNDK
library and therefore needs the .llndk suffix. References to
global data structures from mutators must be removed to support
incremental Soong analysis. Instead, move the LLNDK stubs rules
into the vendor variant of the implementing cc_library so that
the original name can be used.
As an incremental step, the llndk_library modules are left in
place, and the properties are copied into the cc_library via
the dependency specified by the llndk_stub property. A followup
will move the LLNDK properties directly into the cc_library and
delete the llndk_library modules.
The global list of LLNDK libraries is kept for now as it is used
to generate the vndk.libraries.txt file.
Bug: 170784825
Test: m checkbuild
Test: compare Soong outputs
Test: all Soong tests
Change-Id: I2a942b21c162541a49e27b2e5833c9aebccff1d0
SkipInstall is actually primarily used to prevent making a module
visible to Make, rename it and add new SkipInstall that actually
skips installation without affecting Make.
Call c.SkipInstall() for uninstallable cc modules to allow calling
c.installer.install, which will collect PackagingSpecs for
uninstallable cc modules, allowing them to be used by genrules.
Bug: 124313442
Test: m checkbuild
Change-Id: I8038ed5c6f05c989ac21ec06c4552fb3136b9a7a
After the next patch libraryDecorator.install will be called for
uninstallable variants of modules, manually filter them out when
copying to the NDK sysroot.
Bug: 124313442
Test: m checkbuild
Change-Id: I28b538d4ae271dc5e27c386d7cfa538ac0ed841b
Revert submission 1518702-memtrack-aidl
Reason for revert: Broken tests and boot time regressions
Reverted Changes:
Ic4dd70e2c:Add android.hardware.memtrack-unstable-ndk_platfor...
Iaf99d0ca4:Add stable aidl memtrack HAL to product packages
Iac54ae2ba:Add stable aidl memtrack hal to vndk list
If310210a3:libmemtrack: Add support for AIDL memtrack HAL
Ib6c634def:Memtrack HAL: Add stable AIDL implementation
I5e1d0e006:Memtrack HAL stable aidl sepolicy
Change-Id: I4fc71dc5813d10600727a2630c10f5d113f61936
This change fixes a bug that the versioning macro (__LIBNAME_API__) is
omitted for prebuilts providing a stub.
Bug: 175166063
Test: m nothing
Change-Id: I1cce5ab58ef245622861200ec0d8b0f84e3178ed
When a shared library providing stubs is included in an APEX, only the
stub variant (i.e. version:"1", etc.) gets emitted to Android.mk. This
enforces that everything in the Make world to link to the stub providing
only the public APIs of the library. The non-stub variant (i.e.
version:"") isn't exposed, otherwise, others will be able to access
private part of the lib which isn't guaranteed to be stable.
This has been done by unhiding the stub variant when it is known that
the library is actually included in an APEX. Note that stub variants are
by default hidden.
The above mechanism however doesn't work when the shared library is
replaced by a prebuilt and when the APEX is also replaced by a prebuilt.
Then, the fact that the prebuilt library is actually in the APEX gets
lost. In that case, AnyVariantDirectlyInAnyApex() returns false for the
prebuilt library. As a result, the stub variant remains hidden and not
emitted to Android.mk.
This change fixes the problem by checking if the lib isn't available for
the platform at all. If not available for the platform (e.g.
apex_available doesn't have "//apex_available:platform"), the lib is
assumed to be included in an APEX even when it actually didn't go
through the apex mutator (... because it's a prebuilt).
Bug: 175166063
Test: m nothing
Change-Id: I41fabd5b368baecf4dc3c5a080b466f8bcd79d77
Allowing header_libs to refer to a cc_library, cc_library_static
or cc_library_shared was unintentional, make it an error.
Fixes: 173252016
Test: m checkbuild
Change-Id: I9f7986f6ca37deddf1f208b15a87d3c0cff25585
* Consolidate the two shouldCreateSourceAbiDump() in cc/cc.go and
cc/library.go into cc/sabi.go.
* Rename SAbiProperties.CreateSAbiDumps to ShouldCreateSourceAbiDump.
* sabiDepsMutator determines whether a library needs to generate ABI
dump, and mark their ShouldCreateSourceAbiDump property.
* After this change, sabi.Properties.ShouldCreateSourceAbiDump is the
single source of truth of whether ABI dump should be created or not.
GenerateAndroidBuildActions() should check the property, or call the
property accessor (*sabi).shouldCreateSourceAbiDump().
* classifySourceAbiDump() is no longer a *libraryDecorator receiver.
Instead it uses the libraryInterface object in the
ctx.Module().(*cc.Module).library field. This way
classifySourceAbiDump() doesn't need to depend on the internal fields
of libraryDecorator.
Bug: 145608479
Bug: 173492236
Test: Presubmit
Test: Dump the list of module names marked by sabi_deps mutator
Change-Id: Ibfc29fe0153551ab6e2d56ff38ab9bae2c179e0b
* Rename `vndk_deps` mutator to `sabi_deps` to better reflect its
purpose.
* Eliminate duplication of ABI dump generation logic. sabiDepsMutator
should call libraryDecorator.shouldCreateSourceAbiDump() to determine
if a module needs to be marked with CreateSAbiDumps.
* Non-VNDK libraries that are opt-in to ABI check would have their
dependencies correctly marked with CreateSAbiDumps.
* Refactor some lines to idiomatic syntax.
* Add comment strings.
Bug: 145608479
Bug: 173492236
Test: TH presubmit
Change-Id: I99e97787bdf2a4f0c970809161b64aa668ff3d1a
This change fixes a bug that headers are not re-exported from stub
variants of a library, if the headers are not from header libs, but from
shared or static libs. This is because only header lib dependencies
are respected for stubs variants.
The fix is as follows. 1) dependencies to the shared/static libs are
added even for stubs variants. 2) instead, in depsToPaths, they are
treated like header libs (i.e. don't contribute to linkFile) for the
stubs variants.
Bug: 174558745
Test: m
Change-Id: Iab6c77e7817055d0f2d09cb114186b30164fc231
Bug: http://b/173448692
The coverage runtime creates files with uga+rw permissions but an
earlier umask call can restrict these and cause problems with profile
merging ('%Nm' in LLVM_PROFILE_FILE). This change passes `--wrap,open`
to coverage builds. The other change in this topic adds the wrapper
function to set the permissions again using `fchmod` (only for files
opened under /data/misc/trace).
Test: Manually validate permissions of files under /data/misc/trace.
Test: libprofile-clang-extras-test
Change-Id: I881474ab184d03d14c5637951aac027a363739b6
Refactors parts of CC to prepare for preliminary support for using Rust
static libraries in vendor images. Some previously private functions are
made public, and additional functions are added to LinkableInterface so
GetMakeLinkType can be passed a LinkableInterface.
Bug: 172525289
Test: m
Change-Id: I5fda48e79532fe9ceab255e18d910af58048a123
Also some files are refactored:
- snapshot_prebuilt.go is separated from vendor_snapshot.go. Now
vendor_snapshot.go contains snapshot generation codes, while
snapshot_prebuilt.go contains module definition codes.
- Some helper functions are moved from snapshot_utils.go to util.go.
- Some ambiguous names of types and functions are renamed.
We still can add more detailed comments about the snapshots. They are to
be uploaded in follow-up changes, to avoid making this change too big.
Bug: 173474311
Test: generate vndk and vendor snapshot
Change-Id: I18fa837ccdf44a042b7a78e5c3df25fd2de96d95
Add the min_sdk_version property to Rust modules so they can declare
a minimum SDK version they support for use with APEX modules.
Test: New Soong test passes.
Bug: 174862583
Change-Id: I2829053a320f50c218783dee5adbeff9cef81e8e
Sometimes, the ordinary cc_library_* modules need test_for property when
they are part of a bigger cc_test. Instead of propagating the test_for
property from cc_test to its dependencies, this change requires the very
dependency which needs access to the private part of an APEX to
explicitly have the test_for property.
Bug: 161575591
Test: m
Change-Id: Ie1ffe9a60cd2ab02d41bbe5a98225a40392470f6
I added in case anyone needs to access AndroidMkEntries to generate
footer lines, but nobody uses it, and it only confuses people.
Test: m nothing, TreeHugger
Change-Id: Ic8a450e3c306d9228c1fdec212c7441bd6aaee03
The property is used to exclude some shared and static libs when the
module is built for an APEX.
Bug: 166468760
Test: m
Change-Id: I0dcaa4ae94c01aa00dc5539c60d3054c57fd8824
The distinction between foo and prebuilt_foo doesn't exist in make, so
this could create invalid dependencies when both source and prebuilt
modules exist and the prebuilts are preferred.
Test: `m` with ART module prebuilts with prefer:true in the tree
Test: m nothing
Bug: 172480615
Change-Id: I90b76a8f38493882b3330d1b6789159852e59d55
keymint-unstable is the VNDK variant (and this list is only checked to
be a superset of the desired libraries).
The other library exists, but it is removed because it's not in the VNDK
and this list is only for VNDK libs.
Bug: 173660792
Test: build
Change-Id: I0e1a2a7af13f132cd3bfa4ca1305c098acbe747b
Enable the RuleBuilder and RuleBuilderCommand methods to access
the BuilderContext by passing it to NewRuleBuilder instead of
RuleBuilder.Build.
Test: genrule_test.go
Test: rule_builder_test.go
Test: m checkbuild
Change-Id: I63e6597e19167393876dc2259d6f521363b7dabc
MTS is introducing partial MTS test suites that are per-module, with
names of the format: mts-${MODULE}. By centralizing the code for test
suites, we can automatically add "mts" test suite when an
"mts-${MODULE}" test suite is specified, reducing duplication.
Test: m mts
Bug: 170318013
Change-Id: I8ce9d3c252fcc0a937bb5f2826d21cb6c6932d82
Allow for different arch to specify sanitizer options.
Bug: 158010610
Test: Compiles with build options
Change-Id: I4db72f682e920e3c1a6d55473f316e56567636e6
aosp/1501613 has landed. The filtering hack is no longer needed.
Also, fixed a bug that the dependency to the dynamic linker is not
treated as install dep.
Bug: N/A
Test: `m hosttar` and compare the built cvd-host_package.tar.gz with and
without this change. There is no removed file.
Change-Id: I19ef64e10d34bc8be2592c5258505cd632c91af9
List of stub libraries from system (and bionic APEX) is currently
managed in static file. This change generates the list at build time and
adds to the system config so linkerconfig can use it.
Bug: 172889962
Test: Build cuttlefish and confirmed list is generated in
/system/etc/linker.config.pb
Change-Id: Ie0400e9d1098b0de19c6a7c25f261384aadde0a3
__ANDROID_SDK_VERSION__ is ambiguous. Rename it
__ANDROID_APEX_MIN_SDK_VERSION__ so it's clear which SDK version it
refers to.
Note that this is still different from the minSdkVersion of the module
being compiled. This is the max of *all* the minSdkVersions of modules
that this module shares an APEX with.
Test: treehugger
Bug: None
Change-Id: Id9cbd80a6bc99db8227daef4e1db9c893e63ad1e
We will have some APEXes having rust binaries and libraries. So, adding
the support for the types of modules.
rust.Module now inherits from android.ApexModuleBase and implements
the android.ApexModule interface.
Bug: 172414324
Test: m
Exempt-From-Owner-Approval: rebased after +2 from the owner
Change-Id: I356ef4c45f782a6460f001e83af96d1710642d80
module_names.txt and module_paths.txt did not end with the newline
character in each line. Instead it had literal '\n'.
The character must use '\n' without escape character.
Test: m vndk
Change-Id: I1de1d0993994c8a95b02426777f62bfb2bed7b6f
When soong runs the header-abi-dumper remotely, it must provide a few
dynamic libraries as toolchain inputs, or the action will fail
unconditionally on the remote execution system.
This patch allows disabling fallback for the header abi dumper
actions, i.e., this now works with remote execution:
export RBE_ABI_DUMPER_EXEC_STRATEGY=remote
Test: ran against a remote execution server; actions no longer fail remotely
Change-Id: I0c48484c03d0923dae63004fea6632704b317e95
By default, nanopb outputs a timestamp into the .c and .h files it generates.
This is usually considered bening. However, when using remote execution or
remote caching, this poisons all actions that have these files as inputs, and
also appears to affect transitive actions (actions depending on actions that
have these files as inputs).
This change adds the -T flag to suppress the timestamp, which in turn makes
the output files deterministic, which in turn allows the remote cache to
return previous results rather than requiring a re-execution of the
corresponding actions.
Test: ran the build a few times to check that the output is deterministic
Change-Id: Iecfa143dbf12a9bb7703dd0bc3f1b3e3fd56317c
