We're going to dereference a null pointer if you pass one instead of a
pointer to a path, but at the moment (because of implementation sharing
between the different file actions) we won't do it until the last
minute, in the child itself. Let's crash as soon as you make the mistake
instead, to make debugging a lot easier.
Test: treehugger
Change-Id: I987d2700ba05b9867a936ebe770224259376633f
No idea if this will be the actual API level or not, but that's all
the more reason to abstract it away early...
Bug: None
Test: None
Change-Id: I8a17bb42dbb08a6e760427514af8331e7dc9b549
This completes the set, and gets riscv64 to parity with arm64.
Test: llvm-objdump -d
Test: bionic-unit-tests-static --gtest_filter='math*'
Bug: https://github.com/google/android-riscv64/issues/11
Change-Id: I4230005abcd8d6025d82f1e8afe5831fad2db04d
This test was flaky because there was no synchronization between the end
of the test function scope and the jumper threads, resulting in a racy
use-after-scope when accessing the thread array. Fix it by joining the
threads before leaving the test function scope.
Replace the thread array access, which can race with the store to the
thread array in the main thread, with an access to a pre-initialized
variable, which acts as a kind of enforcement that the threads are done
before leaving the test.
Bug: 227390656
Change-Id: Icfbb0d7cae66c12e5ce31072c34529e3c5fdf563
Since it doesn't matter if these calls take a little longer than
before, use the more thorough but slightly longer purge mechanism.
Test: Unit tests pass.
Change-Id: Ifab7166a9682a13231746b78717d52673d13be1b
We don't support running threads on a tagged stack. Untagging SP may
lead to accesses to the stack via a non-SP register, which will be tag
checked, and the check will fail. And indeed that's exactly what the
__bionic_clone function does in its first instruction. Fix the problem by
disabling HWASan and MTE stack tagging on CloneStartRoutine, and remove
the call to untag_address, as it is unnecessary.
Bug: 273807460
Change-Id: I94cc56c816897531c0113c856b54ec41b4aab874
The strerror_buf is way too large, so instead of using a separate
buffer for just this string, reuse the already existing buffer.
Increase the buffer size to cover the maximum errno string.
Add a unit test to verify that none of the errno values are cut off
in the async_safe_format_buffer function when passing %m.
Bug: 274474681
Test: New unit test passes.
Test: Changing the buffer to a small value and verify that the test fails.
Change-Id: I4cb4652709582a8a6b958e12de5d923ec950e6b6
Use __memcpy_chk assembly to replace the implementation of c functions, which can reduce the use of instructions
Test: llvm-objdump
Change-Id: I5d75601626dc997626f6173d53af301183a64004
Signed-off-by: caowencheng <caowencheng@eswincomputing.com>
As of https://reviews.llvm.org/D143769, binaries (with -fsanitize=memtag-*)
have DT_AARCH64_MEMTAG_* dynamic entries, as per the AArch64 MemtagABI.
Android uses an OS-specific ELF note for MTE config, but we should
migrate to the new thing (while preserving backwards compatibility).
Without actually doing the migration right now, just handle these new
entries. Otherwise, you get a whole bunch of logspam about the
unrecognised dynamic entries.
Bug: 274032544
Test: Build android, don't get logspam.
Change-Id: I5c8b59f77a0058e5b93335e269d558a5014f2260
The buffer filled in by strerror_r needs to stay in scope while
it is pointed to by str.
Bug: 273807460
Change-Id: I494ca8b8aca2b28ec2f0f3da72d845db99633553
clang-r487747 gets too clever and removes the store, even if it is
declared as volatile. Set optnone to prevent the compiler optimizing out
the store.
Test: atest CtsBionicTestCases
Bug: 271214588
Change-Id: I14a537ecd4657ee3f510ff531313bd9d56f22f47
This is a new mallopt option that will force purge absolutely
everything no matter how long it takes to purge.
Wrote a unit test for the new mallopt, and added a test to help
verify that new mallopt parameters do not conflict with each other.
Modified some benchmarks to use this new parameter so that we can
get better RSS data.
Added a new M_PURGE_ALL benchmark.
Bug: 243851006
Test: All unit tests pass.
Test: Ran changed benchmarks.
Change-Id: I1b46a5e6253538108e052d11ee46fd513568adec
clang-r487747 added stack protector capability to check noreturn calls.
This caused the system to boot loop. Turn off the new capabilities as a
temporary workaround.
Test: build and boot
Change-Id: I62c912619dfdd2384672d504ce5d52330bf2a102
