Our arm and x86 ABIs shipped with a 32-bit `sigset_t`, so we need to
use sigprocmask64 to save/restore the RT signals too. (This is important
because several are in use by the system, and the behavior of our 32-bit
`sigset_t` is to clear the RT signals.)
Bug: http://b/72493232
Test: ran tests
Change-Id: Idff91f8b2849276e5a3073d07eccd84e02a34410
Detect stack mappings based on a pointer to the stack instead of
relying on "[stack]" label. This does not change the test but
makes it native-bridge friendly. In translated environment native
bridge implementation may have a separate stack for the guest code.
Bug: http://b/30443561
Test: bionic-unit-tests --gtest_filter=pthread*
Change-Id: Ic98a3b74b43ec63c7b37821a1f86525d32efd459
This doesn't address `struct sigaction` and `sigaction`. That will
come later.
Bug: http://b/72493232
Test: ran tests
Change-Id: I4134346757ce3a4dac6feae413361cec16223386
No effect right now, because sigprocmask on LP32 also only touches
the non-RT signals, but this makes it easier to switch to __rt_sigprocmask.
Bug: http://b/72460436
Test: ran tests
Change-Id: I693f0ea36701e9ab5d10e6aefb26387ba45a6064
The main motivation here is that the sigprocmask in pthread_exit wasn't
actually blocking the real-time signals, and debuggerd (amongst other
things) is using them. I wasn't able to write a test that actually won
that race but I did write an equivalent one for posix_spawn.
This also fixes all the uses of sigset_t where the sigset_t isn't
exposed to the outside (which we can't easily fix because it would be
an ABI change).
Bug: https://issuetracker.google.com/72291624
Test: ran tests
Change-Id: Ib6eebebc5a7b0150079f1cb79593247917dcf750
This change modifies the encoding used in SHT_RELR sections to a simpler
version that gives better results. This encoding was suggested by Andrew
Grieve and is described in this post on generic-abi@googlegroups.com:
https://groups.google.com/d/msg/generic-abi/bX460iggiKg/Pi9aSwwABgAJ
Bug: None
Test: Built image for marlin, flashed on device, ran arm and
aarch64 binaries containing '.relr.dyn' sections using
the new encoding.
Change-Id: I266affe0fbad91dc375995985a221cb02499447b
Static variable initialization calls pthread_mutex_lock() and may lead to
deadlock if should_trace() is called in pthread_mutex_lock context.
Here is a stack of blocked init process:
__cxa_guard_acquire ->
should_trace ->
bionic_trace_begin ->
__pthread_mutex_lock_with_timeout ->
__cxa_guard_release ->
should_trace ->
bionic_trace_begin ->
__pthread_mutex_lock_with_timeout ->
mutex::lock ->
LogMessage::~LogMessage
......
So we need to move it out
Test: 1 Compiled and booted.
2 Reboot pressure test for more than 30000 times.
Change-Id: I8d97745161f1aa8942b63338208ea74830768ae1
Signed-off-by: Wei Li <sirius.liwei@huawei.com>
Signed-off-by: Jinguang Dong <dongjinguang@huawei.com>
The history has no motivation for <asm/termbits.h>, and other C libraries
don't seem to include any of the extra types and constants that gains us.
This caused problems building FFMPEG, which defines its own B0.
Bug: https://github.com/android-ndk/ndk/issues/630
Test: builds
Change-Id: If032b9fa7860777c13f7bd8e68fb78ff606dcd94
* Variadic functions usually cannot be inlined.
* Do not use misleading __always_inline attribute,
and also avoid early clang 7.0 compiler bug.
Bug: 72412382
Test: build and boot aosp*-eng in emulator
Change-Id: I7490976166581abc626f397ad408581ada0ed308
__exidx_start and __exidx_end are not actual values to be read, just
symbols placed before and after .ARM.exidx.
The default linker script for ARM static executables includes these
lines:
__exidx_start = .;
.ARM.exidx : { *(.ARM.exidx*) }
__exidx_end = .;
http://infocenter.arm.com/help/index.jsp?topic=/com.arm.doc.dui0474c/BABEHEDA.html
Test: used __gnu_Unwind_Find_exidx in a static executable and showed
non-bogus values
Test: verified that this fixes#593 in the NDK
Bug: https://github.com/android-ndk/ndk/issues/593
Change-Id: Ib35a4b6c82920666ae8a45aa0a2d43e458699b51
This commit allows users to create a link without soname filters between
two linker namespaces.
The motivation is to establish one-way shared library isolation. For
example, assume that there are two linker namespaces `default` and
`vndk`. We would like to limit the shared libraries that can be used by
the `default` namespace. In the meanwhile, we would like to allow the
`vndk` namespace to use shared libs from the `default` namespace if the
soname cannot be find in the search path or loaded sonames of the `vndk`
namespace.
shared_libs = %VNDK_CORE_LIBRARIES%
shared_libs += %VNDK_SAMEPROCESS_LIBRARIES%
vndk <-------------------------------------------- default
\_______________________________________________/^
allow_all_shared_libs = true
android_link_namespaces_all_libs() is added to libdl, but it is
versioned as LIBC_PRIVATE. android_link_namespaces_all_libs() is only
for unit tests.
Bug: 69824336
Test: adb shell /data/nativetest/linker-unit-tests/linker-unit-tests32
Test: adb shell /data/nativetest64/linker-unit-tests/linker-unit-tests64
Test: adb shell /data/nativetest/bionic-unit-tests/bionic-unit-tests
Test: adb shell /data/nativetest64/bionic-unit-tests/bionic-unit-tests
Test: Update /system/etc/ld.config*.txt and check whether the vndk
linker namespace of the vendor process can access the shared libs from
the default linker namespace.
Change-Id: I2879f0c5f5af60c7e56f8f743ebd2872e552286b
These sources are going to be used for the NDK as well, and the NDK
still uses GCC.
This partially reverts commit
4af220cfef. That commit also removed
this symbol from the linker's crtbegin (it has its own). That is
still only built with Clang, so we don't need to revert that part.
Test: treehugger
Bug: None
Change-Id: Iba231baf298e228135bdf48dfed87f9089975eb1
We're going to start using the bionic sources for the NDK CRT
objects, so we need to avoid using symbols that weren't around in
early versions of Android. The NDK is currently building the CRT
objects with GCC as well (there were some segfaults that have yet to
be diagnosed), so move `__used` to the GCC compatible location.
Test: treehugger
Bug: None
Change-Id: I1f5c23eafadc2e3bc0b84bc3305f79a04d35c7d8
Bug: http://b/29177606
Test: run bionic-unit-tests on walleye.
Test: run bionic-unit-tests-glibc on host.
Change-Id: Iac349284aa73515f384e7509445f87434757f59e
This change adds experimental support for SHT_RELR sections, proposed
here: https://groups.google.com/forum/#!topic/generic-abi/bX460iggiKg
Definitions for the new ELF section type and dynamic array tags, as well
as the encoding used in the new section are all under discussion and are
subject to change. Use with caution!
Bug: None
Test: Built image for marlin, flashed on device, ran arm and
aarch64 binaries containing '.relr.dyn' sections.
Change-Id: I2953ae932d3c42ae394e71f8fa058013758a1778
