Commit Graph

23354 Commits

Author SHA1 Message Date
Christopher Ferris 1ca334b1c4 Merge "A few small fix ups." 2017-08-25 01:03:13 +00:00
Elliott Hughes 5da4fe4ada Fix overflow in get_phys_pages and get_avphys_pages.
On LP32 mem_unit will be 4096 to allow more than 4GiB in the "ulong"
fields, but we need to promote to a 64-bit type before we multiply.

Bug: N/A
Test: tested manually with an x86 static binary on my 64GiB desktop.
Signed-off-by: YiPing Xu <xuyiping@hisilicon.com>
Change-Id: Id663932503b75793bb7c26a008129f3e2e4cccbf
2017-08-24 16:51:48 -07:00
Elliott Hughes 896362eb0e Add syncfs(2).
GMM calls this system call directly at the moment. That's silly.

Bug: http://b/36405699
Test: ran tests
Change-Id: I1e14c0e5ce0bc2aa888d884845ac30dc20f13cd5
2017-08-24 16:31:49 -07:00
Christopher Ferris d9d39be0f0 A few small fix ups.
- Add a default xml file to run if nothing is specified on the command-line.
- Add a way to specify a xml file in suites without having to specify the
  full path name.
- Move all of the test xml files into their own directory.
- Add the suites directory for to glibc benchmarks.
- Add a new test for help data.
- Modify the full suite test to verify the default xml is chosen and use
  the real full.xml instead of the test one. Delete the test_full.xml.
- Move the property tests to the end of the suite.
- Add skipping of xml comments.

Test: Ran the unit tests and ran the bionic benchmarks.
Change-Id: Ie99965f86fe915af0175de46c7780ab79e2b0843
2017-08-24 14:50:03 -07:00
Treehugger Robot 96c577c482 Merge "tests: explain how to debug FileCheck failures" 2017-08-24 18:01:38 +00:00
Christopher Ferris 8e410a73d4 Merge "Fix local path assumption in interface_test." 2017-08-24 17:01:56 +00:00
Dimitry Ivanov 506f3f11f1 Merge "Add support of architecture specific ld.configs" 2017-08-24 09:38:33 +00:00
Treehugger Robot 7b4fb64177 Merge "Add more const-correct C++ overloads." 2017-08-24 02:31:35 +00:00
Treehugger Robot 8afd42ff28 Merge "Remove dead `longjmperror`." 2017-08-24 01:07:36 +00:00
George Burgess IV c7bd90ff6f tests: explain how to debug FileCheck failures
As requested by enh@ in Ie9ed1fbcc794e14a0c9bba13b5307ad677949613.

Bug: None
Test: mma
Change-Id: I3beb97fb500faa50d79f9355898bf778ab1184bd
2017-08-24 00:36:15 +00:00
Elliott Hughes 8f0c87e21f Remove dead `longjmperror`.
This used to be used by the ARM longjmp implementation, but hasn't been in
libc.so for as long as we've used a linker script.

Bug: N/A
Test: builds
Change-Id: I3dff4d154d5e317955c349c9eaa08b982cbf0285
2017-08-23 15:40:03 -07:00
Elliott Hughes 73c23ead42 Merge "Benchmark fgetln(3) and getline(3) as well as fgets(3)." 2017-08-23 22:20:57 +00:00
Elliott Hughes df9a489b2b Add more const-correct C++ overloads.
libc++ actually provides overloads for all the standard C library stuff,
so we just need to handle the POSIX and GNU extensions, of which there
are just two more: memrchr and strcasestr.

Bug: http://b/22768375
Test: builds
Change-Id: Ie9ed1fbcc794e14a0c9bba13b5307ad677949613
2017-08-23 14:34:40 -07:00
Elliott Hughes 938bece9e0 Benchmark fgetln(3) and getline(3) as well as fgets(3).
On Pixel 2016, there's about 1us overhead for getline versus
fgets. fgetln(3) is worse still because of the intermediate buffering
(though it might actually be better if you were only reading one line
whose length was less than BUFSIZ).

Also use somewhat realistic input for these benchmarks: /dev/zero makes
no sense at all.

Bug: N/A
Test: ran benchmarks
Change-Id: I4a319825a37ac3849014c4c6b31523c1e200c641
2017-08-23 14:03:43 -07:00
Elliott Hughes 57e07a150e Merge "Fix the stdio fwrite benchmark." 2017-08-23 15:55:28 +00:00
dimitry fe1b27cf84 Add support of architecture specific ld.configs
Prefer architecture specific ld.config.<arch>.txt if it exists;
fall back to default ld.config.txt files if arch-specific one is
not present.

Bug: http://b/64061157
Test: bionic-unit-tests && linker-unit-tests
Change-Id: I83a298a932f2e4af7acb2049a7641fb86908736c
2017-08-23 10:47:07 +02:00
Logan Chien 96ba713f73 Merge "Fix wchar.wcstold_hex_floats on arm64" 2017-08-23 07:16:34 +00:00
Elliott Hughes 3ce774c83b Merge "Add three more functions to the list of POSIX cruft." 2017-08-23 00:29:45 +00:00
Elliott Hughes d706fe5f9e Fix the stdio fwrite benchmark.
Can't write to a read-only file. (Mode "rw" isn't meaningful, but isn't
considered an error by any libc I know of.)

Bug: http://b/64585477
Test: ran benchmarks
Change-Id: Ifec1d68414bfc8f3cc8d7f912cb135dccb2e7a41
2017-08-23 00:05:21 +00:00
Christopher Ferris 1b3fe44e3d Merge "Refactor BufferOutputStream." 2017-08-22 22:50:32 +00:00
Elliott Hughes abf510a39f Add three more functions to the list of POSIX cruft.
It will never make sense to implement confstr, gethostid, or ulimit.

Bug: N/A
Test: N/A
Change-Id: I9cc18b8a0dbe066f0f76b842c5a5be6b8d5da436
2017-08-22 15:21:39 -07:00
Christopher Ferris 9247640711 Refactor BufferOutputStream.
- 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
2017-08-22 13:17:28 -07:00
Sandeep Patil 4a3c9751eb Merge "libc: Add support to allow library calls to find appropriate shell executable for a process" 2017-08-22 19:55:41 +00:00
Sandeep Patil 9b1ca569db libc: Add support to allow library calls to find appropriate shell executable for a process
Library calls like system() and popen() invoke the shell executable
pointed to by '_PATH_BSHELL' in order to run the command passed into the
function. The _PATH_BSHELL points to /system/bin/sh by default and thus
breaks any vendor process trying to use system() / popen(), as they are
denied access to system shell by selinux.

This CL make necessary changes, so the implmentations of system() and popen()
can use the appropriate shell (e.g. /vendor/bin/sh for processes running
out of /vendor partition). Also, changes the implementation of system()
and popen().

Bug: 64832610
Test: Manual, Using a test program running from /system/bin and
      /vendor/bin to ensure correct shell is being used.

Change-Id: Ie7168d69decb1ae98284446ae7db34dec930dc33
Merged-In: Ie7168d69decb1ae98284446ae7db34dec930dc33
Signed-off-by: Sandeep Patil <sspatil@google.com>
(cherry picked from commit aa3e32422c)
2017-08-22 10:17:28 -07:00
Elliott Hughes 8440dc736d Merge "Name function arguments in libc headers for Studio."
am: 611d0de62f

Change-Id: I5c089d77145a0189b6ec52ecad65bdfaa8477fd2
2017-08-22 16:22:54 +00:00
Elliott Hughes 611d0de62f Merge "Name function arguments in libc headers for Studio." 2017-08-22 16:14:26 +00:00
Logan Chien 0288dbb739 Fix wchar.wcstold_hex_floats on arm64
This commit fixes wchar.wcstold_hex_floats on arm64.  On AArch64
(ARM64), the `long double` type has 128 bits and is more precise then
`double` type (64-bit).  As a result, `1e100L` is slightly different
from `static_cast<long double>(1e100)`.

This commit fixes the regression by adding 'L' after the floating point
literals.  This should work because casting from a higher precision
to lower precision won't lose any precisions.

Test: adb shell /data/nativetest64/bionic-unit-tests/bionic-unit-tests \
  --gtest-filter=wchar.wcstold_hex_floats
Test: adb shell /data/nativetest/bionic-unit-tests/bionic-unit-tests
Test: adb shell /data/nativetest64/bionic-unit-tests/bionic-unit-tests

Change-Id: Ibd7b6a5d46c38338b4ca56838d9d272c710b32f6
2017-08-22 17:52:02 +08:00
Elliott Hughes ffde533ed9 Name function arguments in libc headers for Studio.
Final batch of headers...

Bug: http://b/64613623
Test: builds

Change-Id: I86578c7c2df446b210fa1bdda3391b21f340e947
2017-08-21 14:51:59 -07:00
Elliott Hughes 119ef0a320 Merge "Name function arguments in libc headers for Studio."
am: f3b92f1485

Change-Id: I033daf856c6fab5ec41702b36c4d384475de9178
2017-08-19 16:48:21 +00:00
Elliott Hughes f3b92f1485 Merge "Name function arguments in libc headers for Studio." 2017-08-19 16:42:07 +00:00
George Burgess IV 411814e0a9 Merge "Disable FORTIFY on ASAN builds"
am: 7ac99d3ff6

Change-Id: Ib469956edc364bd0d4af59dc5a79439528bf5efd
2017-08-18 22:58:12 +00:00
Treehugger Robot 7ac99d3ff6 Merge "Disable FORTIFY on ASAN builds" 2017-08-18 22:52:27 +00:00
Elliott Hughes 684c31a267 Name function arguments in libc headers for Studio.
Third batch of headers...

Bug: http://b/64613623
Test: builds
Change-Id: I32d8467a0bd22ba94d76476397f4f7dc51003886
2017-08-18 15:07:41 -07:00
George Burgess IV d9551db089 Disable FORTIFY on ASAN builds
FORTIFY's *_chk functions mess with ASAN's library function
interceptors, which can apparently result in false-positives.

Since adding even more complexity to every run-time check condition in
FORTIFY doesn't seem like a great idea, and the majority of our builds
will still use FORTIFY anyway, turning FORTIFY off here seems
reasonable.

Bug: 63104159
Test: checkbuild on internal master + CtsBionicTestCases. No new
failures.

Change-Id: Id32e551e28ee70a9815ad140c3253b86f03de63f
2017-08-18 13:33:45 -07:00
Tom Cherry 55d0f16369 Merge "Always use CLOCK_MONOTONIC for pthreads and semaphores"
am: cbb09bcbb1

Change-Id: Ic0192542c3f4de8afc4cdc4719c2db1e59bcfc4b
2017-08-18 20:06:28 +00:00
Tom Cherry cbb09bcbb1 Merge "Always use CLOCK_MONOTONIC for pthreads and semaphores" 2017-08-18 19:59:26 +00:00
Tom Cherry ac49cedc7e Always use CLOCK_MONOTONIC for pthreads and semaphores
pthread's and semaphore's default behavior is to use CLOCK_REALTIME,
however this behavior is essentially never intended, as that clock is
prone to change discontinuously.

What users really intend is to use CLOCK_MONOTONIC, however only
pthread_cond_timedwait() provides this as an option and even there, a
large amount of existing code does not opt into CLOCK_MONOTONIC.

We have seen numerous bugs directly attributable to this difference.
Therefore, we provide this general workaround to always use
CLOCK_MONOTONIC for waiting, regardless of what the input timespec
is.

Specifically this impacts the below APIs:
pthread_mutex_timedlock()
pthread_cond_timedwait()
pthread_rwlock_timedrdlock()
pthread_rwlock_timedwrlock()
sem_timedwait()

Test: boot bullhead, boot sailfish
Test: bionic pthread/semaphore unit tests
Test: check that pthread_cond_timedwait() timeouts are uneffected by
      CLOCK_REALTIME time changes

Bug: 64694413
Bug: 64623895
Bug: 35756266
Bug: 35678943
Change-Id: Ibba98f5d88be1c306d14e9b9366302ecbef6d534
2017-08-18 09:11:05 -07:00
Elliott Hughes 169f883ef1 Merge "Re-submit "Name function arguments in libc headers for Studio.""
am: 096fa4497c

Change-Id: I402df5b9c5dd3cdbe247db7e25c6baecf57ef2dc
2017-08-18 15:40:53 +00:00
Treehugger Robot 096fa4497c Merge "Re-submit "Name function arguments in libc headers for Studio."" 2017-08-18 15:34:55 +00:00
Andreas Huber 47b244c850 Merge "Fix out-of-bounds deque access causing build failure."
am: ad5c4e3596

Change-Id: Iaf40064fa230b6887e080a288f33c01680d61ef2
2017-08-18 02:00:29 +00:00
Treehugger Robot ad5c4e3596 Merge "Fix out-of-bounds deque access causing build failure." 2017-08-18 01:55:39 +00:00
Elliott Hughes ff26a16c1d Re-submit "Name function arguments in libc headers for Studio."
This reverts commit 9af9120091 (a revert
of 079bff4fa5), now the versioner bug is
fixed.

Bug: http://b/64613623 # header bug
Bug: http://b/64802958 # versioner bug
Change-Id: I1cb9d7832d4b3aecdc57a9285e2291443e59d02d
2017-08-18 00:00:38 +00:00
Andreas Huber 113e9b1bc1 Fix out-of-bounds deque access causing build failure.
Bug: http://b/64802958
Test: built successfully

Change-Id: I8029826f0e4c7f578155d7db545e7786c76a0cdf
2017-08-17 22:26:20 +00:00
Colin Cross c9ca3ddbaf Merge "Revert "Name function arguments in libc headers for Studio.""
am: cf3b0c183d

Change-Id: I5877c029c8a7125c94456dc09c72e23c6b1d8af0
2017-08-17 18:35:56 +00:00
Colin Cross cf3b0c183d Merge "Revert "Name function arguments in libc headers for Studio."" 2017-08-17 18:30:57 +00:00
Colin Cross 9af9120091 Revert "Name function arguments in libc headers for Studio."
This reverts commit 079bff4fa5.

Broke builds with SANITIZE_HOST=address with an asan failure in versioner.

Change-Id: I22b113fd5405589d1a25e5e137c450aaba1ade5f
2017-08-17 18:29:54 +00:00
Elliott Hughes 060e6f57e2 Merge "Name function arguments in libc headers for Studio."
am: 84669837f7

Change-Id: I2a3f9aad107f92f6dbc6cc0df229b8f9503ee5d0
2017-08-17 14:53:09 +00:00
Elliott Hughes 84669837f7 Merge "Name function arguments in libc headers for Studio." 2017-08-17 14:47:05 +00:00
Elliott Hughes 1472dbb0cf Merge "Improve debug malloc docs slightly for app developers."
am: a3d3e8e148

Change-Id: I364551c1b05666eb8828cbac55b64127dd664794
2017-08-17 14:46:38 +00:00
Elliott Hughes a3d3e8e148 Merge "Improve debug malloc docs slightly for app developers." 2017-08-17 14:43:06 +00:00