libdl.a has a no-op dlopen, which breaks static libraries that need a real
dlopen. Instead of automatically linking libdl.a into static executables,
make it optional.
Until recently, the libunwind_llvm.a unwinder, used on arm32, needed the
no-op dladdr, but it's now built using -D_LIBUNWIND_USE_DLADDR=0.
The HWASan run-time uses dlsym and dladdr, so add a libdl dependency for
HWASan-built static binaries. We could also remove the dependency from
libclang_rt.hwasan_static-*.a, but this is also easy to do.
Bug: http://b/141485154
Test: bionic unit tests, device boots, verify that static and dynamic
executables can throw/catch an exception
Test: verify that a static executable using dlopen doesn't link (unless it
adds an explicit dependency on libdl)
Change-Id: Id26741f79dca50256a2dc23453af3026a6c88dca
Host builds using libc++ used -nodefaultlibs to turn off the default
C++ runtime, and then added back all the other necessary libraries.
Clang supports -nostdlib++ since https://reviews.llvm.org/D47115
that removes the C++ runtime without affecting the other default
libraries. Use -nostdlib++, and remove the lists of default
libraries.
Test: m checkbuild
Change-Id: Ib8b761534f64fd7f881e14598e514783678e0b35
libc++demangle provides __cxa_demangle, which used to be a part of
libc++.so but is being moved out to save on resources since very few
libraries need it.
Test: make checkbuild
Bug: http://b/138245375
Change-Id: I677006dbbe87ccf2dd4df182114d2a6b985e3c00
These now must be defined in Android.bp files.
Bug: 122618577
Test: compare build-aosp_arm.ninja before/after
Test: codesearch for LOCAL_MODULE_HOST_OS.*windows
Change-Id: I14451c7753299692940e026f85687b4c3331bb07
Bug: http://b/117796718
ucrt is either preinstalled in newer Windows or can be installed in
older Windows, whereas a dependence on msvcr110 doesn't work on Windows
without additional dependencies.
Test: Run generated binaries on Windows VM (7, 8, and 10) without
installing any extra dependencies.
Change-Id: If5a5ffaa9d822ca05b4b54896937f224103f33d7
- Link libgcc_eh, which needs pthread, which in turn depends on
kernel32. Wrap the libraries with --start-group and --end-group and
remove duplicates.
- Use SjLj exceptions for 32-bit. libgcc_eh implements SjLj exception
model for 32-bit.
- Disable visibility annotations for libcxx and libcxxabi since we are
only going to support these as static libraries.
- Use Win32 threads. MinGW pthreads throws an error when building
libcxx since it's pthread_mutex_initializer is not constant (needs a
cast).
Test: Build and test Windows binaries under Wine.
Change-Id: I594fa7673282ff5c1b7b80d49f48b7618960a148
libc++'s headers are annotated with availability macros that indicate
which version of Mac OS was the first to ship with a libc++ feature
available in its *system's* libc++.dylib. We do not use the system's
library, but rather ship our own. As such, these availability
attributes are meaningless for us but cause build breaks when we try
to use code that would not be available in the system's dylib.
Test: removed the darwin check and checked showcommands on linux
Bug: None
Change-Id: I5f69f337baa29fcdf84b5e2fe46bf4f85904d1cd
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: I6a07e12053090eb6997b79d4091c28ac9a9022de
Note that libdl is already (always) implicitly loaded
because libc.so has a dependency on it.
Also make sure that libc.so always preceding libdl.so
in dt_needed list.
Bug: http://b/62815515
Test: make
Change-Id: I94c9d676b7fa98438b452d24f6c3bbf93166c6a9
BUILD_HOST_static has been broken because I was stripping
-Wl,--start-group/-Wl,--end-group into a separate set of ldflags instead
of keeping them wrapped around some of the ldlibs. So don't pass some of
the build system flags through the ldlibs checker.
Bug: 30898128
Change-Id: I332b42679695cdc5da3cb0036290b6a3544699c0
Prevent platform modules from linking against libstdc++ as their STL
implementation. NDK modules may still use libstdc++.
Change-Id: I317c9bb90ca7d2e0c1f5770bbdff8075dfe3cc83
We've been including the system libc++ headers even if we're building
against our version of libc++. Stop doing that, and only add the headers
to our path if we're using the system libraries.
If nothing is specified, on recent OSX versions, libc++ is the default
c++ library instead of libstdc++. We've been explicitly including the
libc++ headers on all versions, but that breaks old versions. Force us
over to libc++, since the system libstdc++ does not support C++11, and
libc++ is still supported on our oldest version (10.8).
Change-Id: I1fccee8da0f425e10ccc9d3247ed40664eb6ada0
We still need to link the various MSVC libraries even if we aren't
using the STL.
Bug: http://b/22953515
Change-Id: I73c35710a6162408e99480a4840eedd291adf7ab
Instead of using recursive make to change the HOST_OS when building the
windows SDK under linux, add the concept of cross-building to another
host os.
Bug: 23566667
Change-Id: I6dc525b601b6251d458d197c30bf4660d7485502
These symbols need to always be resolved for each binary. Making these
symbols hidden means that we will get a build breakage if this doesn't
happen, and should also prevent the situation where one unwinder's
symbols are visible to the other.
Bug: 18471342
Bug: 19958712
Change-Id: Ieff1f10dab254b60ed120410f45998cf75bb5b9b
The only remaining users of stlport are vendor blobs. Prevent any new
users from using it.
Bug: http://b/15193147
Change-Id: I577a16c8c52e2c7d939c3b5026e18ad90e4b9f26
The previous check tested against USE_MINGW even for target builds.
Hadn't been a problem because people don't typically set USE_MINGW
directly.
Change-Id: I90fe0ea890c44917eb29dd02d7c7f76c19e7fbd6
After fixing the link order here, it seems libunwindbacktrace no
longer works for exception unwinding, but libgcc now does.
Change-Id: Ice79af4b8f234ed6a053ee818b6dec3aa9706c8a
Previously we were bundling this into libc++ and having each binary
resolve its symbols from there. This means that the unwinder that gets
used for a given binary is sensitive to the order in which its
libraries are linked. Making this a static library dependency of each
binary means the right unwinder will always be used.
Bug: 18471342
Bug: 19958712
Change-Id: I782d212784dbf85355b5d9146d7460d675259a0e
Can't be done on the user's end because these libraries all need to be
linked after libc++_static.
Change-Id: Ib21364e6f43689cf59da31d6f561919731ef8272
The Mac linker doesn't understand --start-group, which is needed for
properly linking libgcc/libc statically. It isn't needed for dynamic
executables though, so use that driver behavior where appropriate.
Bug: 19567451
Change-Id: Ifeb03bea55bc87561c64ddafdb99f664fef0f00e
BUILD_HOST_static=1 forces all host binaries to be statically linked.
Since -nodefaultlibs was passed (to disable libstdc++), libgcc wasn't
being passed. This change emulates the driver's behavior.
Also fix default STL selection for BUILD_HOST_static.
Bug: 19567451
Change-Id: I617aab782d40ac76ca5a7d9dddf0f202a4e3a69b
Previously, code defaulted to using libstdc++ (which was GNU libstdc++
on the host, or Bionic's "libstdc++" on the target). Now we default to
libc++. The exception for this is when using mingw, because we cannot
build libc++ for mingw.
Change-Id: I68726fa26cdcb6263f17c838d3e859debd57fae1
It is libstdc++.so, after all, and the naming makes sense for the host
this way (since it also uses libstdc++).
Change-Id: If37ffa015f7967a928ea47a290363d7696c4ce35
Because LOCAL_CXX_STL modifies a module's required shared libaries,
we need this for also prebuilt shared libraries and executables.
Change-Id: I418c26143999a613c40aadf990f131b123e0ac3d
