We fixed the clang driver to "do the right thing" based on target api level years ago, but these manual workarounds predate that (or were copy & pasted from places that predated that). We don't need them any more.
See https://github.com/android/ndk/issues/2005 for more detail.
Change-Id: I995741b8606e389e8de8272f1cc532624516245a
crt_pad_segment adds a NOTE to the ELF which is used by the binoic
loader to determine whether it should pad segments when mapping them
into the virtual address space, such that there are no gaps between
mappings of consecutive segments. This avoids an increase in
unreclaimable kernel slab memory usage for VMAs on devices where the
runtime-page-size > elf-segment-p_align.
Since -fandroid-pad-segment [1] respects -nostdlib used in android
platform builds, soong must link in crt_pad_segment to platform shared
libraries.
For simplicity, link crt_pad_segment everywhere that crtend_so is
applicable, ignoring nocrt property, as there is no other reason
to track these separately.
Example:
❯ readelf -WS /system/lib64/libc++.so [Output simplified]
...
Section Headers:
[Nr] Name Type Address Off Size ES Flg Lk Inf Al
...
[ 2] .note.android.pad_segment NOTE 0000000000000288 000288 000018 00 A 0 0 4
...
[1] https://github.com/llvm/llvm-project/pull/77244
Bug: 316403210
Test: readelf -WS <lib>.so
Change-Id: Icc06611376cfd5ee4de7281b4134f9f8ffe7ca60
Signed-off-by: Kalesh Singh <kaleshsingh@google.com>
LOCAL_STATIC_LIBRARIES, LOCAL_WHOLE_STATIC_LIBRARIES,
and LOCAL_HEADER_LIBRARIES are only exported to Make
so that it can generate module-info.json. Export
ModuleInfoJSONProvider from cc modules so that Soong can
generate the module-info.json entries, and remove the
properties from the generated Android.mk. This will prevent
Kati reanalysis when making some Android.bp changes.
Bug: 309006256
Test: Compare module-info.json
Test: Compare Kati's build.ninja
Change-Id: I6660f6802b9cea46eed553cac12f09a373eeb019
This can be used to add apex-specific shared_libs to a CC module. It
would be nice if we could have apex.shared_libs. But it would make code
much harder to follow because we need to record the shared_libs list as
"exclude list" for non-apex anyway.
Bug: 312510312
Test: m libhardware libhardware.vendor libhardware.vendor.com.google.cf.ir
# check DTNEEDED for libapexsupport
# only apex-variant should have the dependency
Change-Id: I56a3dc280127d8ba44337707444ea226a49ccf0f
Mostly exporting variables to Bazel, but also allowlisting a BUILD
file.
Bug: 251217226
Test: Unit tests
Change-Id: Id87015a3cd5d970700c4058ec989bb0c14c36bcb
Given that we can map them directly to disabling the
corresponding Bazel features: `-{link_,use_lib}crt`
Test: Existing (adapted) Unit Tests
Test: bp2build.sh
Change-Id: Ib502f6fb929ace8e86a1001e3cc21f399317500c
Rust and cc binaries currently use $ORIGIN/lib64:$ORIGIN/../lib64 as the
rpath, and cc tests add $ORIGIN/../../lib64:$ORIGIN/../../../$ORIGIN:$ORIGIN.
This causes problems when a binary is included as test data in
out/host/linux-x86/testcases/<test dir>/<CPU>/<test>, as the
binaries can't find the libraries in out/host/linux-x86/lib64.
Use the same rpath for test and binaries, and for cc and rust.
Bug: 264604160
Test: m USE_HOST_MUSL=true out/host/linux-x86/testcases/acpi_tables_test_src_lib/x86_64/acpi_tables_test_src_lib && out/host/linux-x86/testcases/acpi_tables_test_src_lib/x86_64/acpi_tables_test_src_lib
Test: m USE_HOST_MUSL=true out/host/linux-x86/testcases/gen_sdk_test/x86_64/gen_sdk_test && out/host/linux-x86/testcases/gen_sdk_test/x86_64/toybox
Change-Id: I10fe5dc0de01d1f3c6aea8dbabbf60edab5989c3
The sanitize code was assuming that the names of the clang runtime
library modules were the same as their static library output files,
but that's not true after I39e2cf8ae14edf8510276dab38011afaef85822c.
Use the dependency to get the name of the library to pass to
-Wl,--exclude-libs.
This relands If6ca7838800c76f90105fb02d39e8a68cec96314 with a fix
for skipping tests that don't work on mac.
Bug: 235624976
Test: TestUbsan
Change-Id: I32894d10d24473ad48b6afc5663f91fa48a6a0ba
THe sanitize code was assuming that the names of the clang runtime
library modules were the same as their static library output files,
but that's not true after I39e2cf8ae14edf8510276dab38011afaef85822c.
Use the dependency to get the name of the library to pass to
-Wl,--exclude-libs.
Bug: 235624976
Test: TestUbsan
Change-Id: If6ca7838800c76f90105fb02d39e8a68cec96314
Previously we ran mutators in bp2build mode to add dependencies, now we
look up modules by name directly. Remove workarounds to allow bp2build
mode to not fail when adding/handling dependencies.
Test: m bp2build
Change-Id: Ibf6fd905150cac306e5c395902ef28f609f4df2a
Add a linker_scripts property that is similar to version_script
but uses a -Wl,--script flag and can be passed multiple times.
Test: TestBinaryLinkerScripts
Change-Id: If405cfbcdaf8e99559414ba759734084fae0f7ec
If nocrt is true, then the compilation for cc_shared_library,
cc_binary (shared or static binaries) will _not_ link against their
respective crtbegin and crtend libraries.
nocrt is true only for the Bionic libraries themselves. For everything
else that links against the Bionic runtime, crtbegin and crtend
libraries are used. This makes the "nocrt: false" case the majority.
Hence, if nocrt is explicitly false, we omit the generating attribute in
bp2build.
If nocrt is explicitly true (link_crt is false), the Starlark macro will
disable the link_crt cc_toolchain feature.
Test: new tests
Test: CI
Fixes: 187928070
Fixes: 197946668
Change-Id: I8947789930e599dc802d8eae440859257d044475
We now default to lld for platform builds, removing all need for this
property. For more details, see "Effecient archive file handling" in
https://lld.llvm.org/NewLLD.html#key-concepts
Bug: 189475744
Test: Manual build succeeds
Change-Id: If1104d68b13de8c7afab35c1741a68f64394b448
Following properties are added:
* vendor.header_libs
* platform.cflags
* platform.header_libs
* platform.exclude_shared_libs
These are used in the *-ndk libraries generated from the aidl_interface
modules, so that we can build the platform variants of the libraries
just like the *-ndk_platform libraries. Eventually, we will remove the
*-ndk_platform libraries.
Bug: 161456198
Test: m
Merged-In: I126e272cd29eb1e03662c54bfa8bd64e704adc74
Change-Id: I126e272cd29eb1e03662c54bfa8bd64e704adc74
(cherry picked from commit bb14481408)
Split the x86 host toolchain into glibc and musl variants
Create new musl toolchains that are based on the existing glibc
toolchains, and add the necessary flags for musl compiles.
This relands Ifc02f9e5afa61ff758be98b0c962f3a4b53d0546 with changes
for I46672e3a096b6ea94ff4c10e1c31e8fd010a163c.
Bug: 190084016
Change-Id: Iaa9f7a50ff601155ecd73acc5701a2c226be66dc
Test: TestArchMutator
Add a dynamic_list property that is similar to version_script but uses
a -Wl,--dynamic-list flag instead of -Wl,--version-script.
Bug: 190084016
Test: TestLibraryDynamicList
Change-Id: Idbeb4819ce4d92e50c4e9b27ec8f150d566d380a
Create new musl toolchains that are based on the existing glibc
toolchains, and add the necessary flags for musl compiles.
Bug: 190084016
Test: TestArchMutator
Change-Id: Ifc02f9e5afa61ff758be98b0c962f3a4b53d0546
system_shared_libs has been modified to have the same behavior as
the newly added default_shared_libs, remove default_shared_libs in
favor of system_shared_libs.
This reverts Ia2349d84c70e503916f90a5d2702e135248f73df and renames
the default_shared_libs property in cc_object (which never had
system_shared_libs) to system_shared_libs.
Bug: 193559105
Test: m checkbuild
Change-Id: I46672e3a096b6ea94ff4c10e1c31e8fd010a163c
Remove cflags that are not handled by clang from the global defaults,
and remove calls to ClangFilterUnknownCflags.
Squash lists of clang-specific default flags into the main default
flags lists.
Rename Toolchain.Clang*flags to Toolchain.*flags.
Rename Go variables with Clang in the name that have no non-Clang
equivalent.
Remove unused ninja variables.
Bug: 68947919
Test: no change to build.ninja for aosp_cf_x86_64_phone-userdebug or aosp_crosshatch-userdebug
Change-Id: Id287945315d53e5eaef197adbbb4f1302f2e3680
Remove the odd semantics of system_shared_libs that ignore the property
for non-bionic variants by always honoring it. For the common case
of system_shared_libs: [] this is generally correct, a non-bionic
variant of a module that doesn't compile against bionic libc probably
also doesn't want some other libc. For modules that use something
like system_shard_libs: ["libc"] to link against libc but not libdl
and libm this may cause problems, as it will cause a host varaint to
try to link against the non-existent host "libc" module, but there
aren't very many of those and they can be fixed to use a target.bionic
clause.
Bug: 193559105
Test: m checkbuild
Change-Id: I94454a71144e3e68c7148b8d0bf2d974d2ad2bc6
Building against a locally-built libc besides bionic requires setting
system_shared_libs to avoid circular dependencies, but modules all
over the tree assume that system_shared_libs only affects modules
building against bionic. Add a new default_shared_libs property
that applies to all modules, which will generally be set in
arch-specific clauses to only affect the desired set of modules.
Bug: 190084016
Test: m checkbuild
Change-Id: Ia2349d84c70e503916f90a5d2702e135248f73df
Move the default value for system_shared_libs out of linker.go and into
a new DefaultSharedLibraries method in Toolchain. This will simplify
adding system_shared_libs to cc_object, and adding new toolchains with
different default system_shared_libs.
Test: m checkbuild
Test: go test ./cc/...
Change-Id: I422315f090be20719c08a4d33bd39b0b26a93d6c
Bug: http://b/189438896
This allows setting a different version script for vendor and
platform variants.
Test: The following blueprint snippet builds:
target: { android_arm64: {
target: vendor: {
version_script: "..." } } }
Change-Id: I47e7afeaee3c9124f4231bf0eece7b6844b5313d
Checking sdk_version broke mainline code that compiles against a current
API level but needs to be able to run on an older API level.
Bug: http://b/187907243
Test: treehugger
Change-Id: If1192ef2809e39b043f0a384775b6c9e3a8bd619
Ideally we'll want to move this logic to the toolchain itself, but right
now the linker doesn't even know it's targeting Android, let alone which
API level.
Bug: http://b/147452927
Test: treehugger
Change-Id: I6c5c822d0767e789fa0e2c8e5668fddfd90680bb
Header libraries don't compile anything, so they don't need the
default stl and libclang_rt dependencies. Trimming the dependencies
simplifies using header libraries for LLNDK libraries, which need
extra variants that don't exist for the default dependencies.
Test: m checkbuild
Change-Id: Ib9864c3cc7048b2cc52acf304830777b65a51877
Remove Android-targeting gcc toolchain libraries -- libgcc,
libgcc_stripped, libatomic, and libgcov. Also remove libunwind_llvm,
which is replaced with a libunwind toolchain prebuilt.
The __atomic_* library functions are now part of the compiler-rt
builtins library:
https://android-review.googlesource.com/c/toolchain/llvm_android/+/1625025
Bug: http://b/153025717
Test: treehugger
Change-Id: I971d0a4a49f1aaeb3546e80b6d94208277a171ac
This currently expands all globs, still need to support converting glob
syntax.
Test: go build_conversion_test
Test: GENERATE_BAZEL_FILES=true m nothing
Test: m nothing
Bug: 165114590
Change-Id: If7b26e8e663d17566fad9614ca87a8da1f095284
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
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
To make a module available to product variants, it must define
`product_available: true`. `vendor_available: true` will not create
product variants any more.
However, in this CL, we don't change the behavior of
`vendor_available` property. It still creates both variants. After we
update all Android.bp files that need to provide product variants
with `product_available: true`, we may upload the remaining patches.
Bug: 150902910
Test: lunch aosp_arm64-userdebug && m
Change-Id: I0fd5be7bbae2c45d5cab3c3c2ca49f53a9b6f975
