Make it easier to write tests in users of fdsan by exposing functions
to allow users to get and interpret the tags.
Test: bionic_unit_tests
Change-Id: Iafa9bcaeb5e4db230f3dfec6f483274f34602694
Let the debuggerd handler get the address of the fdsan table so that
crash_dump can parse it and print it out in tombstones.
Test: debuggerd `pidof adbd`
Change-Id: I2297200cae52d0ff24479dba55d1ab4938583501
Add two functions to allow objects that own a file descriptor to
enforce that only they can close their file descriptor.
Use them in FILE* and DIR*.
Bug: http://b/110100358
Test: bionic_unit_tests
Test: aosp/master boots without errors
Test: treehugger
Change-Id: Iecd6e8b26c62217271e0822dc3d2d7888b091a45
I don't think this will help the original submitter, because <resolv.h>
is mostly useless on Android. One day we might have a deprecation and
removal policy for the NDK, but until then we should probably maintain
this header.
Bug: https://github.com/android-ndk/ndk/issues/739
Test: ran tests
Change-Id: I2db859abfdebc3824c997462fa6133d5b355a8dd
Bump the version from v1.1 to v1.2 and add a build fingerprint line.
Update the heap dump documentation to match the new format and reflect
what made it in P and what made it in Q.
Update the unit tests for this change.
Add -O0 to unit test code to make it easier to debug.
Add an external function that can be used by the framework code
so that there is only one way to dump the heap.
Bug: 110095681
Test: Ran unit tests.
Test: Did a dump of a real process and verified fingerprint.
Test: Did a dump of a process without malloc debug enabled.
Change-Id: I769a476cbeaf4c85c5d75bd6d6385f0e3add948c
Merged-In: I769a476cbeaf4c85c5d75bd6d6385f0e3add948c
(cherry picked from commit c84a2a2601)
Apparently this didn't make it to all android-16 devices. As far as
we know it did make it for all android-17 devices.
Test: make checkbuild
Bug: https://github.com/android-ndk/ndk/issues/647
Change-Id: I2f07cfb1254e2a203c1c10b91b0be46bf37ea853
I've deliberately not bothered with the GCC implementation because we'll
have removed GCC from the NDK before anyone gets to use this.
Bug: http://b/72493232
Test: ran tests
Change-Id: Icfc2a3b214739ab53aa41bacacc11b5c67498fb4
As a follow up to Ibba98f5d88be1c306d14e9b9366302ecbef6d534, where we
added a work around to convert the CLOCK_REALTIME timeouts to
CLOCK_MONOTONIC for pthread and semaphore timed wait functions, we're
introducing a set of _monotonic_np versions of each of these functions
that wait on CLOCK_MONOTONIC directly.
The primary motivation here is that while the above work around helps
for 3rd party code, it creates a dilemma when implementing new code
that would use these functions: either one implements code with these
functions knowing there is a race condition possible or one avoids
these functions and reinvent their own waiting/signaling mechanisms.
Neither are satisfactory, so we create a third option to use these
Android specific _monotonic_np functions that completely remove the
race condition while keeping the rest of the interface.
Specifically this adds the below functions:
pthread_mutex_timedlock_monotonic_np()
pthread_cond_timedwait_monotonic_np()
pthread_rwlock_timedrdlock_monotonic_np()
pthread_rwlock_timedwrlock_monotonic_np()
sem_timedwait_monotonic_np()
Note that pthread_cond_timedwait_monotonic_np() previously existed and
was removed since it's possible to initialize a condition variable to
use CLOCK_MONOTONIC. It is added back for a mix of reasons,
1) Symmetry with the rest of the functions we're adding
2) libc++ cannot easily take advantage of the new initializer, but
will be able to use this function in order to wait on
std::steady_clock
3) Frankly, it's a better API to specify the clock in the waiter function
than to specify the clock when the condition variable is
initialized.
Bug: 73951740
Test: new unit tests
Change-Id: I23aa5c204e36a194237d41e064c5c8ccaa4204e3
Trivial, obvious counterpart to the standard ferror(3) and clearerr(3),
and lets us build bison out of the box.
Bug: http://b/64273806
Test: ran tests
Change-Id: I20affabddb71210051165c41e86adfe5ae04f77f
Use the malloc debug framework to implement the malloc debug hooks
since it can introduce a performance issue.
Also, modify the bionic/tests/utils.h slightly to dump an error message
when the exe failed.
Bug: 30561479
Test: Ran malloc hook unit tests.
Test: Ran malloc debug unit tests.
Test: Enabled malloc hooks and ran bionic unit tests and verified no
Test: unexpected failures.
Test: Enabled malloc debug and malloc hooks and verified malloc debug wins.
Test: Enabled malloc debug using env, property, and property with name
Test: still works.
Change-Id: Ib50046a0493c5c2050cf831befb812310bdcc249
(cherry picked from commit d6a1dc2379)
This doesn't address `struct sigaction` and `sigaction`. That will
come later.
Bug: http://b/72493232
Test: ran tests
Change-Id: I4134346757ce3a4dac6feae413361cec16223386
Bug: http://b/29177606
Test: run bionic-unit-tests on walleye.
Test: run bionic-unit-tests-glibc on host.
Change-Id: Iac349284aa73515f384e7509445f87434757f59e
Also simplify trivial one-liners like perror/puts/fputs, and clean up
fread/fwrite slightly.
Fix perror to match POSIX.
Add basic perror and *_unlocked tests.
Bug: N/A
Test: ran tests
Change-Id: I63f83c8e0c15c3c4096509d17421ac331b6fc23d
Historically, Android defaulted to EXPLICIT but with a special case
because SCHED_NORMAL/priority 0 was awkward. Because the code couldn't
actually tell whether SCHED_NORMAL/priority 0 was a genuine attempt to
explicitly set those attributes (because the parent thread is SCHED_FIFO,
say) or just because the pthread_attr_t was left at its defaults.
Now we support INHERIT, we could call sched_getscheduler to see whether
we actually need to call sched_setscheduler, but since the major cost
is the fixed syscall overhead, we may as well just conservatively
call sched_setscheduler and let the kernel decide whether it's a
no-op. (Especially because we'd then have to add both sched_getscheduler
and sched_setscheduler to any seccomp filter.)
Platform code (or app code that only needs to support >= P) can actually
add a call to pthread_attr_setinheritsched to say that they just want
to inherit (if they know that none of their threads actually mess with
scheduler attributes at all), which will save them a sched_setscheduler
call except in the doubly-special case of SCHED_RESET_ON_FORK (which we
do handle).
An alternative would be "make pthread_attr_setschedparams and
pthread_attr_setschedprio set EXPLICIT and change the platform default
to INHERIT", but even though I can only think of weird pathological
examples where anyone would notice that change, that behavior -- of
pthread_attr_setschedparams/pthread_attr_setschedprio overriding an
earlier call to pthread_attr_setinheritsched -- isn't allowed by POSIX
(whereas defaulting to EXPLICIT is).
If we have a lot of trouble with this change in the app compatibility
testing phase, though, we'll want to reconsider this decision!
-*-
This change also removes a comment about setting the scheduler attributes
in main_thread because we'd have to actually keep them up to date,
and it's not clear that doing so would be worth the trouble.
Also make async_safe_format_log preserve errno so we don't have to be
so careful around it.
Bug: http://b/67471710
Test: ran tests
Change-Id: Idd026c4ce78a536656adcb57aa2e7b2c616eeddf
I'm skeptical about the usefulness of this, but it's in POSIX, it's
in glibc (but not iOS), and it is used in some internal source (test
runners and container code).
Bug: N/A
Test: ran tests
Change-Id: I92c5398f2a679b21a33fba92bc8e67e3ae2eb76f
Surprisingly to me, there are actual uses of `swab` in the codebases
I have available to search, including one with a #ifndef __ANDROID__
around it.
Bug: N/A
Test: ran tests
Change-Id: Ic91b78ae22bb65c346cb46dd38916f48d979abe0
Add all the missing <netdb.h> functions.
Also fix getservbyport to handle a null protocol correctly.
Also fix getservbyname/getservbyport to not interfere with getservent.
Also fix endservent to reset getservent iteration.
Also reduce unnecessary differences from upstream NetBSD sethostent.c.
The servent implementation is still horrific, and we should
probably support protoent too so that debugging tools can use
getprotobyname/getprotobynumber.
Bug: N/A
Test: ran tests
Change-Id: I639108c46df0a768af297cf3bbce857cb1bef9d9
We can mark a whole version "introduced=" rather than doing every line
separately.
Bug: N/A
Test: builds
Change-Id: I3219edc755a42ce5ff6258efb744fb5e05967a3a
iOS 10 has <sys/random.h> with getentropy, glibc >= 2.25 has
<sys/random.h> with getentropy and getrandom. (glibc also pollutes
<unistd.h>, but that seems like a bad idea.)
Also, all supported devices now have kernels with the getrandom system
call.
We've had these available internally for a while, but it seems like the
time is ripe to expose them.
Bug: http://b/67014255
Test: ran tests
Change-Id: I76dde1e3a2d0bc82777eea437ac193f96964f138
This is the FreeBSD implementation, plus some tests. The FreeBSD
implementation includes the GNU extensions and seems to be what
iOS is using too, which should provide bug compatibility for app
developers.
The code unfortunately uses a lot of stack, and uses FreeBSD locale
implementation that we don't have, but it does seem better maintained
than the other BSDs.
Bug: http://b/29251134
Test: ran tests
Change-Id: Ie477b45e42a6df1319b25712098519d2b33adf67
I'm unable to find a bug, but we've had requests for this internally
once or twice (though I pointed those folks at the STL), and there's
code we build for the host or in our bootloaders that would use this,
and there's reasonable-looking FreeBSD implementation ready and waiting.
Bug: N/A
Test: ran tests
Change-Id: I6ddee4b71bea4c22ed015debd31d3eaac4fcdd35
Because there was an accidental ABI breakage in 21, and we can't fix
the past. It seems more useful to refuse to build code that won't work
on any current or future device.
Bug: https://issuetracker.google.com/37051826
Test: builds
Change-Id: I4b5c30f899e2c7307642e2fb20e43a3ca14ae7fe
The NDK gen_stub_libs.py doesn't support introduced=P yet:
Traceback (most recent call last):
File "build/soong/cc/gen_stub_libs.py", line 439, in <module>
main()
File "build/soong/cc/gen_stub_libs.py", line 429, in main
versions = SymbolFileParser(symbol_file, api_map).parse()
File "build/soong/cc/gen_stub_libs.py", line 234, in parse
versions.append(self.parse_version())
File "build/soong/cc/gen_stub_libs.py", line 269, in parse_version
symbols.append(self.parse_symbol())
File "build/soong/cc/gen_stub_libs.py", line 286, in parse_symbol
tags = decode_api_level_tags(tags, self.api_map)
File "build/soong/cc/gen_stub_libs.py", line 76, in decode_api_level_tags
raise ParseError('Unknown version name in tag: {}'.format(tag))
__main__.ParseError: Unknown version name in tag: introduced=P
Bug: N/A
Test: builds
Change-Id: Ifd91e525b30f3aa9ad8c889c9564cd769a3a603a
GMM calls this system call directly at the moment. That's silly.
Bug: http://b/36405699
Test: ran tests
Change-Id: I1e14c0e5ce0bc2aa888d884845ac30dc20f13cd5
Implement __freading and __fwriting, and clarify the documentation that was
the cause of these not being implemented for years.
Bug: http://b/17157253
Test: ran tests
Change-Id: I89542c8131b13889e2585417a024050ecf2abcb7
Old versions of Android called these fdprintf and vfdprintf out of
fears that the glibc names would collide with user debug printfs.
Allow users to just use dprintf and vfdprintf on any version by
renaming those calls to their legacy equivalents if needed.
Test: built trivial NDK module targeting android-14 and using dprintf
Test: make checkbuild
Bug: https://github.com/android-ndk/ndk/issues/72
Change-Id: I90de149278f931380418536abaef47c5cee5c195
Moving this to LIBC_DEPRECATED caused compatibility
problems for some apps.
Bug: http://b/36566667
Test: launch app and check that it does not crash
Change-Id: I470f916ef818ff62ff5391b3a0c86dd44c1e8cd0
(cherry picked from commit 2167e74f16)
In order to implement android::base::WaitForProperty well, we need a way to
wait not for *any* property to change (__system_property_wait_any), but to
specifically wait for the property represented by a given `prop_info` to
change.
The android::base::WaitForProperty implementation, like attempts to cache
system properties in the past, also needs a way to keep serials and values
in sync, but the existing functions don't provide a cheap way to get a
consistent snapshot. Change the __system_property_read_callback callback's
type to include the serial corresponding to the given value.
Add a test, slightly clean up some of the existing tests (and name them to
include the names of the functions they're testing, in our usual style).
Bug: http://b/35201172
Test: ran tests
Change-Id: Ibc8ebe2e88eef1e333a1bd3dd7f68135f1ba7fb5
This change introduces new __system_property_read_callback
method to use in place of deprecated __system_property_read
__system_property_set() and get() should just work but now
do not have limit on system property names.
Bug: http://b/33926793
Test: boot device, run adb shell propget
Test: boot device with old version of init (protocol v1)
Test: run bionic-unit-tests --gtest_filter=prop*
Change-Id: I619fb5a7e27a272aac30011579665f6160888bc7
These functions are supposed to be used only by the
property service.
__system_property_find_nth is deprecated and no longer part
of NDK. Call to this function will result in abort for apps
targeting Android O.
Bug: http://b/34114501
Test: bionic-unit-tests --gtest_filter=prop*
Change-Id: I9846965bf248e2ddf45cd7b293618245bbd87145
POSIX locale only, as usual.
The GNU YESSTR and NOSTR extensions return the empty string in the C locale,
so I haven't bothered supporting them.
Bug: http://b/1401872
Test: bionic tests
Change-Id: I6846839e4f9f1812344ed5dce0b93f83c0c20eb3
libc++ needs these now. Add shims to match the others.
Test: make checkbuild tests
Bug: http://b/31639993
Change-Id: Ifec6c32099145d8d3d1a5639a4809e5e9f553c33
Also fix <sys/ipc.h>.
Not useful except to systems/bringup folks for testing. Trivial tests
added, and double-checked under strace to see that things look right.
x86 -- which works differently to everything else -- tested on the host.
Bug: http://b/27952303
Change-Id: I328534e994ae9e90755f545478fba03038c0bb94
Hiding our legacy cruft seemed like a good idea, but in practice it will only
mean worse interoperability.
Plus we got it wrong, as the recent `putw` example showed.
Change-Id: I167c7168eff133889028089c22a7a0dfb8d6d0cf
With this change (and all the others below it in the stack), the only
difference between the arm android-9 libc.so in r13-beta1 and the one
we are now generating is the addition of LIBC_N and LIBC_O versions.
Test: make ndk, readelf stub libc.so to check symbol exists
Bug: https://github.com/android-ndk/ndk/issues/160
Change-Id: Iedab32592b2d979f3cc922ffd4ed406427de3dda
These functions were erroneously released in LIBC_PRIVATE for M, but
in fact need to be public. Since we need to be able to load them on M
even if they were built for a lower platform (and M needs to load on
newer platforms), we need to unversion them.
Change-Id: I333fe8ae7380cc2a5dbd699414399ec52f602383
Spotted these while cleaning up <sys/cdefs.h> --- if we remove __USE_XOPEN2K8,
libchrome decides you "must" have futimes. Adding the missing functions (all
just alternative interfaces to utimensat(2) system call) lets us clean up
without breaking anything.
Change-Id: If44fab08ee3de0e31066d650d128a3c96323529b
* Fix the return type of towlower_l/towupper_l.
* Implement wctrans/wctrans_l/towctrans/towctrans_l.
* Move declarations that POSIX says are available from both <wchar.h> and
<wctype.h> to <bits/wctype.h> and include from both POSIX headers.
* Write the missing tests.
Change-Id: I3221da5f3d7e8a2fb0a7619dc724de45f7b55398
Not efficient to iterate through given the large number of Android
ids (AID). Compile warning will result if you use these functions,
telling you as much. Not for general consumption, however for
example, some filesystem tests would like to see these to perform
all corners.
About 1/4 second for getpwent, and 1/8 second for getgrent to iterate
through all reserved Android aids.
Bug: 27999086
Change-Id: I7784273b7875c38e4954ae21d314f35e4bf8c2fc
android_net_res_stats_get_info_for_net returns the current name servers, search
domains, parameters and stats for the given network ID.
android_net_res_stats_aggregate provides statistics such as errors counts from
the raw stats data reported by android_net_res_stats_get_info_for_net.
android_net_res_stats_get_usable_servers uses the data returned by
android_net_res_stats_aggregate to determine which of the servers are
considered valid or broken by the resolver.
BUG: 25731675
Change-Id: I6059b68e5e8b809027a4d3135f6081588bee8a7d
It turns out that at least the Nexus 9 kernel is built without CONFIG_QUOTA.
If we decide we're going to mandate quota functionality, I'm happy for us to
be a part of CTS that ensures that happens, but I don't want to be first, so
there's not much to test here other than "will it compile?". The strace
output looks right though.
Bug: http://b/27948821
Bug: http://b/27952303
Change-Id: If667195eee849ed17c8fa9110f6b02907fc8fc04
Implement the legacy SysV signal handling functions sighold(),
sigignore(), sigpause(), sigrelse(), and sigset() in terms of the newer
POSIX signal APIs. As of POSIX 2013 the SysV signal APIs are deprecated
but still required.
Change-Id: I4ca40e3d706605a7d1a30dc76c78b2b24586387d
Signed-off-by: Greg Hackmann <ghackmann@google.com>
bionic has the Linux-specific mntent.h but is missing hasmntopt().
Change-Id: I0ab7b83626c969704add4e64b37a6fc715d4a723
Signed-off-by: Greg Hackmann <ghackmann@google.com>
{get,set}domainname aren't in POSIX but are widely-implemented
extensions.
The Linux kernel provides a setdomainname syscall but not a symmetric
getdomainname syscall, since it expects userspace to get the domain name
from uname(2).
Change-Id: I96726c242f4bb646c130b361688328b0b97269a0
Signed-off-by: Greg Hackmann <ghackmann@google.com>
Also guard both these GNU extensions with _GNU_SOURCE.
Also improve the tests to test each case on both the current thread and
another thread, since the code paths are totally different.
Bug: http://b/27810459
Change-Id: I72b05bca5c5b6ca8ba4585b8edfb716a1c252f92
Our fopen/freopen/tmpfile are already always O_LARGEFILE, but let's add
the aliases for _LARGEFILE_SOURCE compatibility.
Bug: http://b/24807045
Change-Id: I5d99b3ef3c9f27ce70f13313f6a92e96c7f21f80
