Spawn 20 child processes, have them all load the library, and compare
the total PSS used in the case where we use dlopen() and the case where
we use android_dlopen_ext() with relro sharing. We assume we will save
at least 10% of the memory; in practise this example saves 40% or more
so this should be a reasonable threshold.
Bug: 14299541
Change-Id: Idccf6b8b0eb137abae2200f1ce68fb76b3cbdd75
I've reported the wcsftime bug upstream, but we really just want to use -D
to ensure the buggy code isn't built. (I've also brought our strftime a bit
closer to upstream now we have the right define.)
I don't think upstream is likely to fix all their sign-compare and
uninitialized warnings, so let's just silence them.
As for libm, again upstream isn't likely to fix all their warnings, and
silencing those made the ones that were our fault stand out. I've fixed
our <math.h> to fix the warnings caused by our lack of definitions for
the non-imprecise long-double functions. I checked the C99 standard, and
all these functions are there.
Change-Id: Iee8e1182c1db375058fb2c451eceb212bab47a37
Description: In the kernel the epoll_event structure is packed
in 64 bit kernel builds to allow the structure to be more easily
compatible with 32 bit user space. As a result, when user space
is 64-bit the structure must be packed as well.
Add unit test to show the ptr alignment issue.
Change-Id: I2c4848d5e38a357219091f350f9b6e3da05090da
Signed-off-by: Philip Hatcher <philip.hatcher@intel.com>
Signed-off-by: Fengwei Yin <fengwei.yin@intel.com>
Reviewed-by: Hazarika, Prodyut <prodyut.hazarika@intel.com>
Tested-by: Hazarika, Prodyut <prodyut.hazarika@intel.com>
* Ability to register atexit handler from atexit handler
* Correct way to handle both forms of atexit handler
Bug: https://code.google.com/p/android/issues/detail?id=66595
Bug: 4998315
Change-Id: I39529afaef97b6e1469c21389d54c0d7d175da28
If the file has no relro segment, the generated relro file will have
length 0, which caused mmap to fail. If the relro file has nonzero size,
but is too short (e.g. because it's for the wrong version of the
library), the linker would segfault while comparing the data. Fix both
these issues: don't try to map a zero length file, and don't try to
compare data that would be beyond the end of the file.
Improve test to explicitly generate two versions of the library: one
with -z relro, and one with -z norelro, so we can test both cases; also
explicitly test the case where the relro file has length 0.
Bug: 14299541
Change-Id: Id8b95585edda90e8bb5de452a35b70ed2d224934
Although glibc gets by with an 8-byte mbstate_t, OpenBSD uses 12 bytes (of
the 128 bytes it reserves!).
We can actually implement UTF-8 encoding/decoding with a 0-byte mbstate_t
which means we can make things work on LP32 too, as long as we accept the
limitation that the caller needs to present us with a complete sequence
before we'll process it.
Our behavior is fine when going from characters to bytes; we just
update the source wchar_t** to say how far through the input we got.
I'll come back and use the 4 bytes we do have to cope with byte sequences
split across multiple input buffers. The fact that we don't support
UTF-8 sequences longer than 4 bytes plus the fact that the first byte of
a UTF-8 sequence encodes the length means we shouldn't need the other
fields OpenBSD used (at the cost of some recomputation in cases where a
sequence is split across buffers).
This patch also makes the minimal changes necessary to setlocale(3) to
make us behave like glibc when an app requests UTF-8. (The difference
being that our "C" locale is the same as our "C.UTF-8" locale.)
Change-Id: Ied327a8c4643744b3611bf6bb005a9b389ba4c2f
__SIGRTMIN will continue to tell the truth. This matches glibc's
behavior (as evidenced by the fact that we don't need a special case
in the strsignal test now).
Change-Id: I1abe1681d516577afa8cd39c837ef12467f68dd2
This also gets us the C99 wcstoimax and wcstoumax, and a working fgetwc and
ungetwc, all of which are needed in the implementation.
This also brings several other files closer to upstream.
Change-Id: I23b025a8237a6dbb9aa50d2a96765ea729a85579
This replaces a partial set of non-functional functions with a complete
set of functions, all of which actually work.
This requires us to implement mbsnrtowcs and wcsnrtombs which completes
the set of what we need for libc++.
The mbsnrtowcs is basically a copy & paste of wcsnrtombs, but I'm going
to go straight to looking at using the OpenBSD UTF-8 implementation rather
than keep polishing our home-grown turd.
(This patch also opportunistically switches us over to upstream btowc,
mbrlen, and wctob, since they're all trivially expressed in terms of
other functions.)
Change-Id: I0f81443840de0f1aa73b96f0b51988976793a323
Since multilib is not set every time, it needs to be per module or
there is a change that another target will use the multilib value set
previously.
Change-Id: I5c30e18d5111705cb3f6e3d4cd9ef8a28c9b746c
Note that the kernel returns the current break on error or if the requested
break is smaller than the minimum break, or the new break. I don't know where
we got the idea that the kernel could return -1.
Also optimizes the query case.
Also hides an accidentally-exported symbol for LP64.
Change-Id: I0fd6b8b14ddf1ae82935c0c3fc610da5cc74932e
- promoted IEEEld2bits to fpmath since most of the where the same for
diffrent archs
- removed _fpmath
- reinstated weak_references
- moved isfinite and isnormal to libc
- clean up fake_long_doubles
- clean up some useless ifdefs
- added missing nexttoward* tests
Bug: 14134235
Change-Id: I95639c4885653fe47fd7dc0570ee5bb3389bbc6b
The glibc tests are just a regular host binary; they don't require
that you're targeting x86 or x86_64. They do seem to pick up the
suffix of the target though, even though they're always 32-bit.
Change-Id: I689ca2a4f8d7b397afa4df722b95b0d7ec904bf6
This is the first patch from the new set of tests for Bionic standard functions.
Change-Id: Ie568788a24832394e597ad33f44a5c71cb33b51f
Signed-off-by: Grigoriy Kraynov <grigoriy.kraynov@intel.com>
Adding the perfunctory <ctype.h> tests showed that we'd accidentally
dropped several symbols. This puts everything back in its proper place
and switches us to upstream head at the same time.
Change-Id: Ib527ad280c9baded81e667fa598698526d93e66f
Add flags and a file descriptor to android_dlopen_ext() to allow writing
the RELRO section of the loaded library to a file after relocation
processing, and to allow mapping identical pages from the file over the
top of relocated memory in another process. Explicitly comparing the
pages is required in case a page contains a reference to a symbol
defined in another library loaded at a random base address.
Bug: 13005501
Change-Id: Ibb5b2d384edfaa5acf3e97a5f8b6115c10497a1e
Add flags and parameters to android_dlopen_ext() to allow loading a
library at an already-reserved fixed address. If the library to be
loaded will not fit within the space reserved, then the linker will
either fail, or allocate its own address space as usual, according to
which flag has been specified. This behaviour only applies to the
specific library requested; any other libraries loaded as dependencies
will be loaded in the normal fashion.
There is a new gtest included to cover the functionality added.
Bug: 13005501
Change-Id: I5d1810375b20fc51ba6a9b3191a25f9792c687f1
Also move isinf and isnan into libc like everyone else.
Also move fpclassify to libc like the BSDs (but unlike glibc). We need
this to be able to upgrade our float/double/long double parsing to gdtoa.
Also add some missing aliases. We now have all of:
isnan, __isnan, isnanf, __isnanf, isnanl, __isnanl,
isinf, __isinf, isinff, __isinff, isinfl, __isinfl,
__fpclassify, __fpclassifyd, __fpclassifyf, __fpclassifyl.
Bug: 13469877
Change-Id: I407ffbac06c765a6c5fffda8106c37d7db04f27d
The OpenBSD doesn't support C99, and the extent to which we support
locales is trivial, so just do it ourselves.
Change-Id: If0a06e627ecc593f7b8ea3e9389365782e49b00e
On LP64 systems F_GETLK64, F_SETLK64 and F_SETLKW64 definitions should
map onto the F_GETLK, F_SETLK and F_SETLKW definitions, respectively.
LP64 also doesn't have a struct flock64.
Change-Id: Ibdfed9645d9e946999acd6efa8b96ea6238ed5bf
Signed-off-by: Marcus Oakland <marcus.oakland@arm.com>
Signed-off-by: Serban Constantinescu <serban.constantinescu@arm.com>
Add tests for the above.
Add the fortify implementations of __stpcpy_chk and __stpncpy_chk.
Modify the strncpy test to cover more cases and use this template for
stpncpy.
Add all of the fortify test cases.
Bug: 13746695
Change-Id: I8c0f0d4991a878b8e8734fff12c8b73b07fdd344
This is an implementation in the style of the rest: char == byte.
We might want to come back and implement UTF-8, but this is enough for ltrace.
Bug: 13747066
Change-Id: Ib2b63609c9014fdef9a8491e067467c4fc5ae3cc
printf("%1$s %1$s\n", "test");
would print garbage instead of the second "test". The problem is __find_arguments
and the patch is a backport of two patches from OpenBSD that fix the issue:
Author: tedu <tedu@cvs.openbsd.org>
Date: Sat Apr 29 23:00:24 2006 +0000
check mmap for failure. the helper functions using it return -1, but
callers do not yet check since printf() for example is not documented
to return an error.
some formatting cleanups.
mostly ok deraadt millert
Author: millert <millert@cvs.openbsd.org>
Date: Fri May 16 14:28:54 2008 +0000
C99 says that for each va_copy() there must be a matching va_end().
Replace the non-portable hackery in __find_arguments() with a union.
From FreeBSD.
Change-Id: I6ea392ce6fcf4a319ae6a67ec58cc52fe7cbe534
Signed-off-by: Alexander Ivchenko <alexander.ivchenko@intel.com>
Make sure there is a delay before the file descriptor is written so that
the select/pselect calls do not return immediately.
Change-Id: If9e481b0e2cfae7ef7abd9cba8fff84078e203d3
Put the accept4 test in the sorted order, and put the accept4 define in
sorted order.
Also add the missing SYS_RECVMMSG and SYS_SENDMMSG defines.
Change-Id: Iba55354975e0d5027dbee53f6de752c2df719493
lconv is taken from ndk/sources/android/support/include/locale.h and
matches
bsd/glibc upstream.
Keep old declaration for 32-bits for compatibility.
localeconv.c and deps are taken from openbsd upstream.
Changed strtod.c accordingly.
Change-Id: I9fcc4d15f5674d192950d80edf26f36006cd31b4
Signed-off-by: Pavel Chupin <pavel.v.chupin@intel.com>
* reworked amd64/_fpmath.h and arm64/_fpmath.h to support 128-bit long
doubles.
* improved tests to cover long double cases
* made modfl an alias for LP32
Tests pass on x86, x86_64, arm, arm64 and mips.
Bug: 12921273
Change-Id: Ibe39acde57972447a8950fa45b1e702acc68ebeb
If the callback function for a timer did a timer_delete, the function
would never return. The problem was that the timer_delete function would try
to wait until the timer thread has finished. Waiting for yourself to finish
doesn't work very well.
Bug: 13397340
Change-Id: Ica123a5bafbc8660c8a4a909e5c2dead55ca429d
The normal ASSERT_EQ macros don't work quite right for float/double values,
and result in false failures. Use the correct macros instead.
Bug: 13511379
Change-Id: Ic2feee7f3d3569f57b6453b8fa95222846c625cd
We'll need a better implementation of strtold for LP64, but all our
long double functions are currently broken for LP64 anyway so this
isn't a regression.
Change-Id: I2bdebac11245d31521d5fa09a16331c03dc4339c
This is a much simpler implementation that lets the kernel
do as much as possible.
Co-authored-by: Jörgen Strand <jorgen.strand@sonymobile.com>
Co-authored-by: Snild Dolkow <snild.dolkow@sonymobile.com>
Change-Id: Iad19f155de977667aea09410266d54e63e8a26bf
This replaces the non-standard pthread_mutex_lock_timeout_np, which we have
to keep around on LP32 for binary compatibility.
Change-Id: I098dc7cd38369f0c1bec1fac35687fbd27392e00
We only support CLOCK_REALTIME and CLOCK_MONOTONIC for now,
so we us a single bit from pthread_cond_t->value to denote
the clock type. Note that this reduces the width of the counter
to 30 bits, but this should be large enough for all practical
purposes.
bug: 13232338
Change-Id: I857e7da64b3ecbb23eeac7c9f3fbd460f60231bd
The only way the setitimer call can fail is if the unsigned number of seconds is
too large to fit in the kernel's signed number of seconds. If you schedule a
68-year alarm, glibc will fail by returning 0 and BSD will fail by returning -1.
Change-Id: Ic3721b01428f5402d99f31fd7f2ba2cc58805607
Also add the corresponding constant, struct, and function declarations
to <sys/socket.h>, and perfunctory tests so we know that the symbols
actually exist.
Signed-off-by: Guillaume Ranquet <guillaumex.ranquet@intel.com>
Change-Id: Ib0d854239d3716be90ad70973c579aff4895a4f7
