We are removing native bridge copy of fork.cpp, but need to
replace call to clone() when it's done for bionic's fork.
The code here will run all pre-/post-clone routines for *guest*,
while native bridge implementation will need to run the
corresponding *host* routines.
Bug: 145028007
Test: bionic-unit-tests
Change-Id: Ic5524e743caa287d7aaa8dc7e5d34acd1c7e1170
Kernel headers coming from:
Git: https://android.googlesource.com/kernel/common/
Branch: android-mainline
Tag: android-mainline-5.7
Update the generate_uapi_headers.sh where the types.h file is now in
the right place, but kvm.h is not.
Test: Booted cuttlefish/bonito.
Test: Ran bionic-unit-tests on cuttlefish/bonito.
Change-Id: Ice9ce370a658e320b80f564b34a4431927fcf100
.whitelisted is a list of sonames seperated by ":" just like
.shared_libs and .paths properties. It makes sense to make it appendable
using += as well ass .shared_libs and .paths.
Bug: n/a
Test: atest linker-unit-tests
Change-Id: If61cc553c8080e8a58de8a3a6051c1853f7bfe5f
So the message gets flushed before the following abort.
Test: bionic-unit-tests without bionic-loader-test-libs at the expected
relative path shows the error message.
Change-Id: I53bb27a88b73c9d8f4bb76560752f99a104d71ca
clock_gettime() with known arguments can't fail (and we ignore its
return value in most other places already).
Test: treehugger
Change-Id: I2374ae5ba1598a01d4c4f689b9c75c4e7dc926b6
Add SCUDO_OPTIONS to the list of the environment variables that should
not be preserved across a security boundary.
Bug: 157484128
Test: Builds and boots.
Change-Id: Id8644608114ad2fd49baedbdbbe1c899768bd54d
When malloc debug is enabled, using libbacktrace to unwind can
result in a deadlock. This happens when an unwind of a thread
is occuring which triggers a signal to be sent to that thread. If
that thread is interrupted while a malloc debug function is
executing and owns a lock, that thread is then stuck in the signal
handler. Then the original unwinding thread attempts to do an
allocation and gets stuck waiting for the same malloc debug lock.
This is not a complete deadlock since the unwinder has timeouts,
but it results in truncated unwinds that take at least five
seconds to complete.
Only the backtrace signals needs to be blocked because it is the only
known signal that will result in a thread being paused in a signal
handler.
Also, added a named signal in the reserved signal list for the
special bionic backtrace signal.
Bug: 150833265
Test: New unit tests pass with fix, fail without fix.
Change-Id: If3e41f092ebd40ce62a59ef51d636a91bc31ed80
Ensure we don't call sigchain's sigaction64 from bionic's sigaction by
extracting sigaction64 to a static function.
Test: treehugger
Change-Id: I16226c6ac580ece7000c335beb1d3b76429d2a06
Since we last touched this file, the Linux kernel has added the missing
API, but time has also moved on enough to make the cost/benefit
unconvincing for Android.
Bug: http://b/156317457
Test: treehugger
Change-Id: I07fa678458ef10d15540b36ab65e0898d2fdadc6
Allow to provide a list of prioritized syscalls (e.g., syscalls that we
know occur often) which are checked before other syscalls in seccomp.
When constructing the bpf seccomp filter, traverse prioritized syscalls
in a linear list before checking all other syscalls in a binary tree.
Bug: 156732794
Test: make, inspect generated *_system_policy.cpp files
Test: simpleperf on futex/ioctl-heavy app seems to show 5-10% less time
spent in seccomp call
Change-Id: I509343bcd32ada90c0591785ab5cb12d2a38c31e
(cherry picked from commit ce84677733)
This reverts commit 01fb8d7120.
Reason for revert: Re-land the test after fixing b/156397945
Bug: 156397945
Change-Id: Ie9ec5fef7a308e28d512c6438c5c06758bdbcf06
