strerrordesc_np() isn't very useful (being just another name for
strerror()), but strerrorname_np() lets you get "ENOSYS" for ENOSYS,
which will make some of our test assertion messages clearer when we
switch over from strerror().
This also adds `%#m` formatting to all the relevant functions.
Test: treehugger
Change-Id: Icfe07a39a307d591c3f4f2a09d008dc021643062
Missed this when we added the new C23 binary output to the printf()
family.
Also fix %X to use "0X" instead of "0x" and add missing tests.
Test: used by new LD_SHOW_AUXV functionality
Change-Id: I6623b92acec7daf534536697de0f87352a2653ad
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
The buffer filled in by strerror_r needs to stay in scope while
it is pointed to by str.
Bug: 273807460
Change-Id: I494ca8b8aca2b28ec2f0f3da72d845db99633553
This is required because virtualization_service use
libtombstoned_client_rust which has transitive dependency on
libasync_safe
Test: atest MicrodroidHostTestCases
Bug: 202153827
Change-Id: I9e670d02995f9ed9e67791aaecb300b6bfdbdb03
"vendor_available" modules were available to product modules.
However, not all "vendor_available" modules are required to be
available to product modules. Some modules want to be available only
to product modules but not vendor modules.
To cover the requirement, we separate "product_available" from
"vendor_available".
"vendor_available" will not provide product available module.
Bug: 150902910
Test: build
Change-Id: I13b8222e191333c6c2cb7794ef3344fdcc6ebe98
Like with close, socket is no longer a simple syscall, so we can get
recursive calls that deadlock.
Bug: http://b/165206592
Test: bionic-unit-tests on cuttlefish
Test: treehugger
Change-Id: I2ba77d733d1ebf08a91afd6ca179e7ae6ae3866e
In particular, add the strerror() output if mprotect() fails.
Fix the CHECK macro so that you can make assertions involving operator%
without that being confused for a printf format specifier.
Bug: https://issuetracker.google.com/158645318
Test: treehugger
Change-Id: I6817f8ca5f094c52dc2c9067bfac90385a8743f5
The marked library(ies) were available to the APEXes via the
hand-written whitelist in build/soong/apex/apex.go. Trying to remove the
whitelist by adding apex_available property to the Android.bp of the
libraries.
Bug: 150999716
Test: m
Change-Id: I6ea7fee2a135298085d3965d3578d9ecd53ee405
Particularly to document why both this and liblog exist, when they do
essentially the same thing.
Test: n/a
Change-Id: I216194402a12270cfbb6bc9b840d054dc9c1dc16
Enable native bridge support for bionic libraries.
Makes it possible to use them in binaries for translated
architectures.
Bug: http://b/77159578
Test: make
Change-Id: Iccd4ad7aecfa5260cc15f09ca975d2e18987278a
This target is needed by linux_bionic targets and so should support
it.
Test: ./art/tools/build_linux_bionic.sh com.android.runtime.host
Change-Id: Ib12f1cf1d70e606b0921f507b3e460f5d543017e
The log priorities and ids are in an NDK header, available to everyone.
Move CHECK into its own header for now. This would be better if it was
more like the <android-base/logging.h> CHECK family, but I don't have an
easy way to do that without lots of copy & paste, so punting for now.
Bug: https://issuetracker.google.com/issues/119713191
Test: boots
Change-Id: I4566be8a0a024fede0e2d257c98b908ec67af2a8
This commit extracts `libc_headers` for `libasync_safe` and
`libpropertyinfoparser` (in the `system/core` repository).
Before this change, `libasync_safe` expects that `libc` is automatically
added to `system_shared_libs` of the libasync_safe vendor variant even
if `libc_defaults` explicitly declines any `system_shared_libs`.
This commit defines `libc_headers` for `libasync_safe` and
`libpropertyinfoparser` so that they can find the headers from libc
without causing circular dependencies.
Bug: 123006819
Test: make checkbuild
Change-Id: I2435ab61d36ff79ca2b4ef70bd898b795159c725
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
In order to support shared libraries in the recovery mode, the dynamic
linker is now built with recovery_available: true option.
In addition, a few more modules (such as libasync, etc.) are also marked
as recovery_available: true as they are transitive dependencies of the
dynamic linker.
Bug: 63673171
Test: `adb reboot recovery; adb devices` shows the device ID
Test: `adb root && adb shell` and then
$ lsof -p `pidof adbd` shows that libm.so, libc.so, etc. are loaded from
the /lib directory.
Change-Id: Idd981d8cf25568a85b24032cf78e50adfd5f4a7f
We've been using #pragma once for new internal files, but let's be more bold.
Bug: N/A
Test: builds
Change-Id: I7e2ee2730043bd884f9571cdbd8b524043030c07
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
Return EAGAIN rather than aborting if we fail to set up the TLS for a new
thread.
Add a test that uses all the VMAs so we can properly test these edge cases.
Add an explicit test for pthread_attr_setdetachstate, which we use in the
previous test, but other than that has no tests.
Remove support for ro.logd.timestamp/persist.logd.timestamp, which doesn't
seem to be used, and which prevents us from logging failures in cases where
mmap fails (because we need to mmap in the system property implementation).
Bug: http://b/65608572
Test: ran tests
Change-Id: I9009f06546e1c2cc55eff996d08b55eff3482343
- Rewrite BufferOutputStream to handle 0 sized buffers and to get rid
of an unnecessary loop.
- Add tests to verify overflow corner cases.
- Implement async_safe_format_buffer to call async_safe_format_buffer_va_list
instead of duplicate the code.
Test: Ran new unit tests, booted on angler.
Change-Id: I7fb13e209f5b7443d212f55aab4b05ff2e0e8219
No-one cares about seeing "async_safe_fatal" (which you have to admit is a
pretty confusing name for an app developer anyway).
On arm:
#00 pc 0001a43c /system/lib/libc.so (abort+63)
#01 pc 0001a627 /system/lib/libc.so (__assert+14)
And aarch64:
#00 pc 000000000001d75c /system/lib64/libc.so (abort+120)
#01 pc 000000000001dad0 /system/lib64/libc.so (__assert+44)
Bug: N/A
Test: ran `crasher assert` and `crasher64 assert`
Change-Id: I00be71c566c74cdb00f8e95d634777155bc3da03
This, when used with BOARD_VNDK_VERSION flag, enables the
module to be built and installed twice, one for /system,
other for /vendor.
libasync_safe is used by libbacktrace which is in turn used by libs in
/vendor and thus marked as vendor_available. Therefore, libasync_safe
is also marked as vendor_available.
Details: https://android-review.googlesource.com/368372
Bug: 33241851
Test: BOARD_VNDK_VERSION=current m libasync_safe.vendor successful
Merged-In: I4b4de3b99a024d52612109cee3d66b4e5fc12dec
Change-Id: I4b4de3b99a024d52612109cee3d66b4e5fc12dec
(cherry picked from commit ec0d6b416e)
This library is used by a number of different libraries in the system.
Make it easy for platform libraries to use this library and create
an actual exported include file.
Change the names of the functions to reflect the new name of the library.
Run clang_format on the async_safe_log.cpp file since the formatting is
all over the place.
Bug: 31919199
Test: Compiled for angler/bullhead, and booted.
Test: Ran bionic unit tests.
Test: Ran the malloc debug tests.
Change-Id: I8071bf690c17b0ea3bc8dc5749cdd5b6ad58478a
