arm and arm64 have distinct headers, but mips and mip64, and x86 and x86_64
use headers that work for both widths. So where arm/arm64 need to handle the
second architecture case specially, all we need to do for the others is
hard-code the name. (x86_64.mk already hard-codes x86; we need to change
x86.mk for the case where we're building the 32-bit binaries for a mixed
system. mips64.mk doesn't exist yet, but when it does, it'll hard-code
just plain "mips" too.)
Change-Id: Ia6b9f77b4eb2c78729b454045875c409e0ea8197
To ease the transition between toolchains, allow a target to specify
a list of cflags that the toolchain does not support. These will be
filtered out of the cflags provided by the module.
Add TARGET_GLOBAL_UNSUPPORTED_CFLAGS := -fstack-protector for the
aarch64 toolchain, it does not yet suport -fstack-protector.
Change-Id: I168d0c6f131326fad305ec86fad46e6a3e03295a
This should never have been on the default include path.
The NDK statically links its own libthread_db, so I'm removing
bionic's unused copy from devices.
Bug: 11882807
Change-Id: I49a67fe0902cc4bc178360f6c993959774d74e3a
Compiling for arm requires using the arm kernel headers and not
the aarch64 kernel headers. Add $(combo_2nd_arch_prefix) to get
asm-$(TARGET_2ND_ARCH) when arm is the 2nd arch.
Change-Id: I15270d0ef35e48c034bf4d0d5e35b76f67b2a8e1
The rules for the 2nd arch are set up in the second inclusion
of shared_library_internal.mk.
Intermediate fils of libfoo of the 2nd arch will be built into
$(PRODUCT_OUT)/obj_$(TARGET_2ND_ARCH)/SHARED_LIBRARIES/libfoo_intermediates/
and the built libfoo.so will be in
$(PRODUCT_OUT)/obj_$(TARGET_2ND_ARCH)/lib.
Bug: 11654773
Change-Id: I58bbe5a05a65f63bce6279131552f3792000716e
The rules for the 2nd arch are set up in the second inclusion
of static_library_internal.mk.
libfoo of the 2nd arch will be built into
$(PRODUCT_OUT)/obj_$(TARGET_2ND_ARCH)/libfoo_intermediates/libfoo.a.
Bug: 11654773
Change-Id: I1d92733968fc442e9225b4df5bd1b551a81d89f7
This is the first step to build 32-bit libraries in a 64-bit product.
It will work like this:
1) In the product's BoardConfig.mk, define:
TARGET_2ND_ARCH, TARGET_2ND_ARCH_VARIANT, TARGET_2ND_CPU_VARIANT.
The build system uses those variables to set up an additional compiler
environment for the second arch.
2) When parsing Android.mks, the build system sets up rules to build a
module for both the 1st arch and the 2nd arch, unless it's explicitly
asked to skip so.
Android.mk will be adapted if there is additional rule of generating
source files.
The build system will accept arch-specific LOCAL_ variables, such as
LOCAL_CFLAGS_arm, LOCAL_CFLAGS_armv7-a-neon, LOCAL_CFLAGS_cortex-a15,
LOCAL_CFLAGS_aarch64 etc. Modules use such variables to set up build for
various archs at the same time.
3) Install binary of the 2nd arch by adding "<module_name>:32" to
PRODUCT_PACKAGES. All 2nd-arch libraries linked in by "<module_name>:32"
will be installed automatically.
Bug: 11654773
Change-Id: I2df63cd5463a07bf5358bee2a109f8fb9590fe30
Conflicts:
core/combo/TARGET_linux-arm.mk
_LARGEFILE_SOURCE should never be defined with bionic.
_FILE_OFFSET_BITS should be 64 on 64-bit architectures.
Change-Id: I7acf6b39a3af7782d5d7ad00f709593d96fa8522
All thumb code compiles with -fno-strict-aliasing. Let's not make aarch64
porting any more difficult than it needs to be.
Change-Id: I94874df1217b69532c328d7c86c9961631ebde8a
Once the aarch64 toolchain is refreshed this will be removed.
Also removed some CFLAG duplications.
Change-Id: I42fd86931263af82042ea696196fb25e948fe9cb
Add -Wa,--noexecstack and -Wl,-z,noexecstack as default
flags when compiling host-side applications. This enables
NX protections, which prevent code from executing on the
stack or heap. NX protections make exploiting memory
corruption issues more challenging and is an important
security feature.
Change-Id: Iae580abe887e01f9029ec2a4e0fc0aae496724a4
- Separate SDK checking from version checking and
make messages clearer.
- Add explicit source & target versions for javac to
make things clearer.
- Rename flag from EXPERIMENTAL_USE_JAVA7_OPENJDK to
EXPERIMENTAL_USE_JAVA7.
- Allow Oracle JDK 1.7 to be used on Mac OS, since there's
no official OpenJDK support for that platform.
Change-Id: I454d2c917ed78f03ec7559a99659fefe7e7d50f3
MIPS and x86 are almost completely switched over to uapi-only. ARM is still
currently old-only. A cleanup of the uapi headers over the weekend means
that the uapi-only <linux/kexec.h> is now in the right place, which will break
the ARM build unless the ARM build also looks in the uapi headers if it can't
find an old header.
Change-Id: Ie7a53ef2122b43cdef64b71d7b36a8381992a461
This patch completes the support for AArch64. It adds the last few
tweaks that will enable a AArch64 build of bionic.
Please note that though AArch64 uses the new kernel infrastructure,
where the userspace exported headers live in uapi folders, we still
need to include "kernel/common" in the include search path
(take a look at external/kernel-headers/uapi/asm-generic/signal-defs.h).
Also remove the relro linker flags for now as they crash the foundation
model.
Change-Id: Ie2fa8c1056c84dc15fec4469f2d65b8d0c5e712b
Signed-off-by: Serban Constantinescu <serban.constantinescu@arm.com>
In 4f2f16da14, we added
-Wl,--warn-shared-textrel to TARGET_GLOBAL_LDFLAGS. This generated
a warning whenever we created a shared library with a text
relocation. At the time, we wrote:
=====
Emit a warning when the static linker detects a shared library
has text relocations. Text relocations make it harder to
share pages across processes, and make it harder to use
certain memory protection features in, for example, SELinux.
This warning will turn into an error in a future change
(via --fatal-warnings)
=====
All code which uses text relocations has either been fixed, or
we've temporarily worked around the issue so the code can still
compile.
Enable --fatal-warnings.
Bug: 11353056
Change-Id: I2f2c65352166ef0a96f54858de1556f0290fe306
-mandroid, -D__ANDROID__ is on by the toolchain;
-msse3 moved to llvm_config, it seems it's required only there;
__cxa_atexit is provided by libc now;
USE_SSE2 should not be used anywhere, it's always true;
remove -mstackreallign and -mfpmath=sse as useless for x86_64;
Change-Id: Ib7739f6522c375c09de10d22616c48a493841c4c
Signed-off-by: Pavel Chupin <pavel.v.chupin@intel.com>
