libclang_rt.builtins has default visiblity set to public and is the
last included static library for all modules. This means that it is
possible for libraries to pick up libclang_rt.builtins from their
shared library dependencies, instead of libclang_rt.builtins directly.
Particularly, a vendor prebuilt in AOSP was picking up __floatditf()
from libhidlbase.so instead of from libclang_rt.builtins. A change to
libhidlbase.so that removed the symbol caused thos prebuilt to fail to
link at runtime.
Bug: 138809247
Test: build, boot internal
Test: don't see libclang_rt.builtins symbols in libhidlbase.so
Merged-In: I0348c4860fe02cf88cb89f7ab356bd8c17826d77
Change-Id: I0348c4860fe02cf88cb89f7ab356bd8c17826d77
If sort_bss_symbols_by_size is true, a shared library is built twice.
The first build generates an unsorted output file, which is used to
generate the symbol ordering file. The output of the second build is
a shared library with its bss symbols sorted by their size.
With this, the only user of symbol_ordering_file, libc, is migrated to
use the new property, so we remove symbol_ordering_file support as well.
Bug: 135754984
Test: Build and check the resulting libc.so has its bss symbols sorted.
Change-Id: I5c892b44d82eb99cbc070cfa2c680be3087f3364
Change ctx.Config().BuildNumberFromFile() to be unescaped, and then
escape it manually where necessary. This will allow passing
ctx.Config().BuildNumberFromFile() to RuleBuilder, which will handle
the necessary escaping.
Test: no change to out/soong/build.ninja
Change-Id: I5329ab2ba70ccea49958864488aa81794a7e4b56
This reverts commit 6d8c0a50bc.
The switchover to lld appears to be making adb crash on exit for unclear
reasons. Revert it as a quick fix pending further investigation.
Bug: http://b/134613180
Test: adb.exe under windbg
Change-Id: Ibdf5981c3c6828b3684974b7c30a7c96449c64c5
no_libgcc is no longer needed anywhere. Move all occurances to no_libcrt
and remove no_libgcc.
Test: build
Change-Id: I6dd49db71d05d7685aa90cc837627f65e6742d6d
We use libgcc as fallback for symbols not present in libclang_rt
builtins, however we didn't know what exact symbols were being used,
some may not be intended to fallback.
Create libgcc_stripped, which only contains unwind symbols from libgcc.
Bug: 29275768
Test: bionic-unit-tests
Change-Id: I5b349fa6138e51663bf3b67109b880b4356da8e8
This reverts commit 61166dc047.
One difference from the earlier change is that import libraries are now
using the '.lib' extension instead of '.a' to prevent clash with
AdbWinApi.a.
Bug: http://b/110800681
The following flags that the binutils linkers support are not
available in lld for Windows:
-soname
--no-undefined
-rpath
Windows also uses "import libraries", which are stub libraries used only
for linking. The binutils linkers accepted a DLL and treated them as an
import library. But lld issues the following error:
lld-link: error: ...DLL: bad file type. Did you specify a DLL instead
of an import library?
To resolve this, pass '-out-implib=libFoo.lib' to lld when linking
libFoo.dll to get lld to generate an import library. Add libFoo.lib as
an implicit output to the 'ld' build rule.
Rewrite the shared libraries when building a library/binary to use the
import library instead of the DLL. As a side-effect, this also uses the
newly-created AdbWinApi.lib that's alongside
development/host/windows/prebuilt/usb/AdbWinApi.dll
Test: Run Windows tests (go/android-llvm-windows-testing) and check
absence of regressions. Also check that the following commands pass:
$ adb.exe devices
$ fastboot.exe devices
Change-Id: I34e07d345e0207086ac8e8ea12525d8c322b20fd
In addition, add Shared_libs to malloc_not_svelte.
Bug: 123689570
Test: Verified that libc_scudo is first wherever it is added.
Change-Id: Ibdc5dbd019a382630a727c270f846aa4446f8d99
Merged-In: Ibdc5dbd019a382630a727c270f846aa4446f8d99
Bug: http://b/110800681
The following flags that the binutils linkers support are not available
in lld for Windows:
-soname
--no-undefined
-rpath
Windows also uses "import libraries", which are stub libraries used only
for linking. The binutils linkers accepted a DLL and treated them as an
import library. But lld issues the following error:
lld-link: error: ...DLL: bad file type. Did you specify a DLL instead
of an import library?
To resolve this, pass '-out-implib=libFoo.a' to lld when linking
libFoo.dll. Add libFoo.a as an implicit output to the 'ld' build rule.
Rewrite the shared libraries for a library/binary to use the import
library instead of the DLL. As a side-effect, this also (correctly)
uses the AdbWinApi.a that's alongside
development/host/windows/prebuilt/usb/AdbWinApi.dll
Test: Run Windows tests (go/android-llvm-windows-testing) and check
absence of regressions.
Change-Id: I15a178589aa6882caa6e7e38650cc6ef48109764
Add `android:"path"` to all properties that take paths to source
files, and remove the calls to ExtractSource(s)Deps, the
pathsDepsMutator will add the necessary SourceDepTag dependency.
Test: All soong tests
Change-Id: I488ba1a5d680aaa50b04fc38acf693e23c6d4d6d
Follow the change to blueprint to make *Escape take and return a string
and add *EscapeList that take and return slices of strings. Fix up
a few places that were unnecessarily converting a string to a slice
and back to a string.
Test: m nothing
Change-Id: I3fa87de175522205f36544ef76aa2f04aef1b936
libcrt is crashing libc on x86/x86_64 for unknown reason. This enables
us to disable libcrt for these architectures for libc for now.
Test: m checkbuild
Bug: 29275768
Change-Id: I5a717286b3d9cc1ba8cdcd33bafb9c225de4aff8
This CL adds configs for the arm64 and x64 fuchsia
device targets, sets up the necessary linker flags,
and disables some functionality that is not currently
supported on Fuchsia.
Bug: 119831161
Test: Compile walleye, internal validation against
fuchsia_arm64-eng and fuchsia_x86_64-eng.
Change-Id: I2881b99d2e3a1995e2d8c00a2d86ee101a972c94
This commit removes a special case that ignores `system_shared_libs`
when `sdk_version`, `vendor_available`, or `vendor` is specified.
In the past, that special case was required for `libasync_safe` and
`libpropertyinfoparser`. However, ignoring `system_shared_libs` meant
that we didn't have a way to skip the default libs when `sdk_version`
was specified. This becomes a problem when the dependencies of
prebuilts are actually checked. To be specific,
`libclang_rt.builtins-${arch}` falls into circular dependencies.
Bug: 123006819
Test: make checkbuild
Change-Id: I5fe038c00892b3abe5189b30d57ba59884b47cbb
We add an optional Symbol_ordering_file property to linker properties
to allow modules to specify the order of symbols in the binary.
Bug: 112073665
Test: Build libc with a symbol ordering file and check the resulting
binary.
Change-Id: Ibb24697cfdee4a5750442cb74f1ee6390d8a6430
Even though we aren't doing any linking for static libraries, the
default libraries (libc, libm, libdl) are now exporting headers, so we
should be using those for both static and shared libraries (especially
when re-using objects between the two). Without this we've been in a
state where a cc_library will compile differently than a
cc_library_shared, as we'd re-use the compilation units from the static
variant in the shared library.
This does require marking many of libc's dependencies as not using libc
with system_shared_libs, otherwise we run into dependency loops.
Test: treehugger
Change-Id: Ie42edc5184f315f998db953594e425214b810e0e
This patch fixes an issue that SHR_RELR relocation is not supported by
SDK version earlier than API 28. We only turn it on when SDK is not
used, or SDK version is newer than or equal to API 28.
Test: m -j48 for aosp_taimen-userdebug
Bug: http://b/119086751
Change-Id: I33124ae4f35fb8c00ae9103e8c04e2d4ccd5fec3
Arch property struct types are created at runtime. Go has a limit
of 2**16 bytes for the name of a type, and the type of a struct
created at runtime is a string containing all the names and types
of its fields. To avoid going over the limit, split the runtime
created structs into multiple shards.
Also undo MoreBaseLinkerProperties now that it is no longer
required.
Bug: 80437643
Test: m checkbuild
Test: no change to out/soong/build.ninja
Change-Id: I035b20332ec63f3d4b1696855c5b0b0a810597b7
A cc_library or cc_library_shared can be configured to have stubs
variants of the lib.
cc_library_shared {
name: "libfoo",
srcs: ["foo.cpp"],
stubs: {
symbol_file: "foo.map.txt",
versions: ["1", "2", "3"],
},
}
then, stubs variants of libfoo for version 1, 2, and 3 are created
from foo.map.txt. Each version has the symbols from the map file where
each symbol is annotated with the version that the symbol was introduced
via the 'introduced=<ver>' syntax. The versions don't need to be in sync
with the platform versions (e.g., P for 28). The versions are local to
the library.
For another library or executable to use the versioned stubs lib, use
the new 'name#ver' syntax to specify the version:
cc_binary {
name: "test",
....
shared_libs: ["libFoo#2"],
}
Internally, a new mutator 'version' is applied to all cc.Module objects.
By default, a variant named 'impl' is created for the non-stub version.
If the versions property is set, additional variations are created per a
version with the mutable property BuildStubs set as true, which lets the
compiler and the linker to build a stubs lib from the symbol file
instead from the source files.
This feature will be used to enforce stable interfaces among APEXs. When
a lib foo in an APEX is depending on a lib bar in another APEX, then bar
should have stable interface (in C lang) and foo should be depending on
one of the stubs libs of bar. Only libraries in the same APEX as foo can
link against non-stub version of it.
Bug: 112672359
Test: m (cc_test added)
Change-Id: I2488be0b9d7b7b8d7761234dc1c9c0e3add8601c
This should always be true now. It will be a change for side branches
(build_tools, etc) that weren't setting UseClangLld in the
soong.variables file.
Test: treehugger
Change-Id: I9fd6157fda630bf8bb939677dbcb026f02685f19
Clang is always used now, so we can remove all the GCC checks. Removing
GCC-specific configuration will happen in the next CL.
Test: m
Change-Id: I4835ecf6062159315d0dfb07b098e60bff033a8a
This reverts commit 77e62dbf59.
Reason for revert: caused boot failure on mirror-aosp-master-with-vendor
Change-Id: I594df35878616dba8990d044d7cd529458a601b6
libgcc is kept behind libcrt.builtins to provide unwinder symbols and
any other missing symbols.
libc and libm are excluded from the switch due to some symbols being
hidden in libcrt.builtins but not in libgcc. These will be addressed in
a separate CL.
Bug: 29275768
Test: checkbuild and bionic native tests on arm/arm64/x86/x86_64
Change-Id: Icc85bf88513e989a4b1547564405a22cf847db8a
Bug: 78793464
Test: mmm
libhardware needs to be made available in recovery without
exporting bluetooth and audio headers.
Change-Id: Ib1d1bcda49abccfb9a4768580e1c1d92ead68773
Adding a mechanism to conditionally exclude some header library
dependencies when a lib is built for vendors.
Without this, some libraries cannot be earily marked as vendor_available
if they are depending on header libs can shouldn't be marked as
vendor_available.
By using exclude_header_libs with exclude_srcs (or __ANDROID_VNDK__
macro), we can eliminate the unnecessary dependency for vendors.
Bug: 112338314
Test: build
Change-Id: If12dceb6045099fe828fe33af2ac4428f88499a2
This is common to binaries and libraries, so move it from library.link
and binary.link to baseLinker.linkerFlags and baseLinker.linkerDeps.
Test: make checkbuild
Bug: None
Change-Id: I5fb24118e601673ae0713a6adc773a1565749be8
Bug: http://b/69933068
- Remove GCC's intrinsic header path so Clang's headers get included.
- Add '-B' with GCC's binary directory so Clang detects the linker.
- Bug: http://b/109759970 - Pass '--allow-multiple-definition' linker
flag to deal with ld.bfd's inability to handle Clang-generated section
names is fixed.
- Bug: http://b/110800681 - lld cannot link Android's Windows modules
yet
Test: m native-host-cross and run adb_test.exe under wine.
Change-Id: I9be9cfc34a47cbeee04024438dea214305112eaa
When pack_relocations is false and clang lld is used,
pass --pack-dyn-relocs=none to lld.
Bug: 80093890
Test: build and boot with USE_CLANG_LLD=true
Change-Id: I0ffe77a111d7fbab5afaa1395d09734a8a390e09
`recovery: true` installs a module to the recovery partition.
`recovery_available: true` makes a module to be available to other
`recovery:true` or `recovery_available: true` modules.
These to are very similar to vendor, vendor_available properties, except
for the target partition.
Bug: 67916654
Bug: 64960723
Test: m -j, toybox_recovery is installed to the recovery/root/sbin
Change-Id: Iaebe0593de16c69fa70de251a61f4d018a251509
This commit adds `runtime_libs` to cc_binary and cc_library.
Similar to the `required` property, if a module specifies the
`runtime_libs` properties and it is installed, then the modules
specified in `runtime_libs` will be installed as well.
Differnt from the `required` property, if a module is using VNDK and the
module names specified in `runtime_libs` are resolved to the modules
with both core and vendor variants, then '.vendor' will be appended to
those module names.
For example, if `libb` is vendor_available and `libd` is a vendor lib,
then LOCAL_REQUIRED_MODULES will contain `libb.vendor` (instead of
`libb`).
Bug: 72343507
Test: lunch aosp_arm64_ab-userdebug && make # this runs the unit tests
Test: Create a vendor module with runtime_libs property to a
vendor_available shared library and check the generated Android.mk.
Change-Id: I9e245d80004dab597a5d3db5acd8a09117118db7
* See upstream status of lld for Mach-O at https://lld.llvm.org/AtomLLD.html
Bug: 73768157
Test: make checkbuild
Change-Id: I2e892193b6d75afd4358df8b2f674aa94888fb32
Bug: http://b/73768157
Test: Mark 'use_clang_lld: true' for one arch of a module and verify by
inspection that only that arch variant uses lld.
Change-Id: I4b0d7a2bc43ee0b8462ab09a5f5c50807129a7fb
* USE_CLANG_LLD is unedefined in current builds.
* When USE_CLANG_LLD is defined to 'true' or '1',
use clang's lld instead of ld or ld.gold.
* When lld is enabled:
* ld-only flags are not passed to 'lld'.
* location_packer is disabled.
* Use new lld's --pack-dyn-relocs=android.
* When lld does not work:
* In Android.mk files use LOCAL_USE_CLANG_LLD := false.
* In Android.bp files use use_clang_lld: false.
* Only arm, arm64, x86, and x86_64_devices have LLD flags;
all other hosts and targets do not call lld yet.
Bug: 73768157
Test: make checkbuild and boot
Change-Id: I06b8a1e868a600997a7e70fe05c299d751d23d5f
Allow native modules to specify use_version_lib, which will make
an android::build::GetBuildNumber() function available. For host
builds, the function will return the build number at the time that
the module was linked. For device modules it will return the
value of the ro.build.version.incremental property.
Bug: 71719137
Test: build_version_test
Test: m build_version_test && touch build/make/core/Makefile build/soong/cc/libbuildversion/tests/build_version_test.cpp && m build_version_test shows different build numbers for binary and library tests.
Change-Id: I6f7d40b7574bb8206866c4e39bad9c710c796e32
no_default_compiler_flags is only used by the crt* modules,
is unnecessary, and causes problems when necessary flags like
-no-canonical-prefixes are not passed. Remove the property.
Use useVndk() instead of noDefaultCompilerFlags() to determine
if adding libc as a dependency is necessary and won't cause a
circular dependency.
Bug: 68719465
Test: m checkbuild
Change-Id: Iea1a082dc701dfeab211049a22f7066257347b80
Move ldflags that are specified for all devices into
deviceGlobalLdflags, and add them to linker.go:
-Wl,-z,noexecstack
-Wl,-z,relro
-Wl,-z,now
-Wl,--build-id=md5
-Wl,--warn-shared-textrel
-Wl,--fatal-warnings
-Wl,--no-undefined-version
Bug: 68855788
Test: m checkbuild
Change-Id: I82561b4189287d7638006f9e298c5151f9930c5e
target.vendor.exclude_static_libs: this is the static counterpart of
target.vendor.exclude_shared_libs. This removes the libs from the static
dependency when build the vendor variant.
target.vendor.version_script: vendor-specific version script.
Right now, these are required to merge libseliux_vendor into libselinux
and make it vendor_avaialble:true. libselinux is using libpackageparser
which is a platform-only library. The vendor variant of libselinux can't
depend on the library.
Bug: 66914194
Test: lunch aosp_arm64_ab-userdebug; m libselinux.vendor
Change-Id: I163e634f2f54d419f9471a585a3b04731b63f809
This reverts commit 2370af0e23.
Reason for revert: New Build Breakage: aosp-master/aosp_arm64_ab-userdebug @ 4376965
Change-Id: Ibe4b819c4292457c454bf42e6d94fba3071ec04b
libm is a default library for device builds, so default it for host
builds as well.
Also removes duplicate additions of -ldl, -lpthread, -lm and -lrt.
Test: m host
Change-Id: I8f7e799d48a1f427e48dcfb1d0ccba93c5f9780b
Tom Cherry