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
Turns out stlport isn't broken. <cmath> (included
transitively via gtest in our case) is not required
to make C99 math macros (like signbit) available, nor is
it required to preserve them if they're already defined.
It is only required to make the equivalent functions in
namespace std available.
I couldn't find any documentation of required behaviour for
programs that include both <math.h> and <cmath>.
I've verified experimentally that llvm's libc++ and gnu
stl behave the same as stlport.
bug: 12935307
Change-Id: I9dc5cc0fd9f4f259abc8eefb280177cdd092a94b
This gives us:
* <dirent.h>
struct dirent64
readdir64, readdir64_r, alphasort64, scandir64
* <fcntl.h>
creat64, openat64, open64.
* <sys/stat.h>
struct stat64
fstat64, fstatat64, lstat64, stat64.
* <sys/statvfs.h>
struct statvfs64
statvfs64, fstatvfs64.
* <sys/vfs.h>
struct statfs64
statfs64, fstatfs64.
This also removes some of the incorrect #define hacks we've had in the
past (for stat64, for example, which we promised to clean up way back
in bug 8472078).
Bug: 11865851
Bug: 8472078
Change-Id: Ia46443521918519f2dfa64d4621027dfd13ac566
bionic/libc/arch-arm64/syscalls/read.S ends with:
b.hi __set_errno
ret
END(read)
If __set_errno returns int, it will set w0 to 0xFFFFFFFF, which means
x0 is 0x00000000FFFFFFFF. When interpreted as a ssize_t that is
INT_MAX, not -1.
Change __set_errno to return long, which will cause x0 to be set instead
of w0.
Change-Id: I9f9ea0f2995928d2ea240eb2ff7758ecdf0ff412
We don't need quite so much duplication because we already have a way
to get the signal number from its name, and that already copes with the
fact that the mips/mips64 numbers are different from everyone else's.
Also remove sys_signame from LP64. glibc doesn't have this BSD-ism.
Change-Id: I6dc411a3d73589383c85d3b07d9d648311492a10
In order to be able to generate a list of tests for cts, the same set of
tests must exist across all platforms. This CL adds empty tests where a
test was conditionally compiled out.
This CL creates a single library libBionicTests that includes all of
the tests found in bionic-unit-tests-static.
Also fix a few missing include files in some test files.
Tested by running and compiling the tests for every platform and
verifying the same number of tests are on each platform.
Change-Id: I9989d4bfebb0f9c409a0ce7e87169299eac605a2
We don't actually need to worry about sign extension if we reject
negative values ourselves. Previously it was possible to come up
with negative but aligned values that we would pass to the kernel;
in the case of mmap (as opposed to mmap64) we'd incorrectly turn
those into large positive offsets.
Change-Id: I2aa583e0f892d59bb77429aea8730b72db32dcb0
The various committees decided that everyone should get all these macros,
all the time.
Bug: 12708004
Change-Id: Ib56010dcba9b0656e5701546fefb7f78dc0bf916
The situation here is a bit confusing. On 64-bit, rlimit and rlimit64 are
the same, and so getrlimit/getrlimit64, setrlimit/setrlimit64,
and prlimit/prlimit64 are all the same. On 32-bit, rlimit and rlimit64 are
different. 32-bit architectures other than MIPS go one step further by having
an even more limited getrlimit system call, so arm and x86 need to use
ugetrlimit instead of getrlimit. Worse, the 32-bit architectures don't have
64-bit getrlimit- and setrlimit-equivalent system calls, and you have to use
prlimit64 instead. There's no 32-bit prlimit system call, so there's no
easy implementation of that --- what should we do if the result of prlimit64
won't fit in a struct rlimit? Since 32-bit survived without prlimit/prlimit64
for this long, I'm not going to bother implementing prlimit for 32-bit.
We need the rlimit64 functions to be able to build strace 4.8 out of the box.
Change-Id: I1903d913b23016a2fc3b9f452885ac730d71e001
__bionic_clone modifies the child stack before cloning so the stack
pointer should be valid. The test is expecting an EINVAL error to be
generated from the incorrect flags: CLONE_THREAD set without
CLONE_SIGHAND.
Change-Id: Ic02192081f6f52df6f03d9810efa82d923247a11
32-bit Android's dev_t was wrong too. We can't fix that without ABI breakage,
but we can at least fix 64-bit Android. And add tests.
Bug: https://code.google.com/p/android/issues/detail?id=54966
Change-Id: Ie2e42cc042b78b669a1a44e55f959dbd9c52c5c9
Because there was no default := for the aarch64 libc_crt_target_cflags,
the += was causing libc_crt_target_cflags to be recursively-defined
variable, which meant that when we were compiling crtbegin.c LOCAL_PATH
would be bionic/tests/ and we'd have -Ibionic/tests/include/ and find
none of our include files.
Also fix linking of pthread_debug.cpp, at least in the disabled mode.
The enabled mode was already broken for all architectures, and continues
to be broken after this change. It's been broken for long enough that
we might want to just remove it...
(aarch64 is using the FSF linker where arm uses the gold linker.)
Change-Id: I7db2e386694f6933db043138e6e97e5ae54d4174
Addition of support for AArch64 in the linker64 target.
Change-Id: I8dfd9711278f6706063e91f626b6007ea7a3dd6e
Signed-off-by: Marcus Oakland <marcus.oakland@arm.com>
This patch adds minor fixes to the bionic unit tests.
Change-Id: Ie10f33c631ed6c10987923d678711d22931ddb05
Signed-off-by: Serban Constantinescu <serban.constantinescu@arm.com>
I fixed this bug a while back, but didn't remove it from the list,
could have added a better test, and could have written clearer code
that didn't require a comment.
Change-Id: Iebdf0f9a54537a7d5cbca254a5967b1543061f3d
Let the kernel keep pthread_internal_t::tid updated, including
across forks and for the main thread. This then lets us fix
pthread_join to only return after the thread has really exited.
Also fix the thread attributes of the main thread so we don't
unmap the main thread's stack (which is really owned by the
dynamic linker and contains things like environment variables),
which fixes crashes when joining with an exited main thread
and also fixes problems reported publicly with accessing environment
variables after the main thread exits (for which I've added a new
unit test).
In passing I also fixed a bug where if the clone(2) inside
pthread_create(3) fails, we'd unmap the child's stack and TLS (which
contains the mutex) and then try to unlock the mutex. Boom! It wasn't
until after I'd uploaded the fix for this that I came across a new
public bug reporting this exact failure.
Bug: 8206355
Bug: 11693195
Bug: https://code.google.com/p/android/issues/detail?id=57421
Bug: https://code.google.com/p/android/issues/detail?id=62392
Change-Id: I2af9cf6e8ae510a67256ad93cad891794ed0580b
It turns out that when passing a closed file to getdelim or getline, the
functions in glibc will properly return a failure, but errno might not be
set. Skip the errno check except on bionic.
Change-Id: I8d625f15303d4c2d42e8d28491ea8a368aea4d32
Create a few generic testing functions to allow any memory/string tests
to be created.
Add alignment tests for memcpy/memset/strcat/strcpy/strlen.
Add an overread test for memcpy/strcat/strcpy/strlen. This test attempts
to verify that the functions do not read past the end of their buffers
(src buffer in the case of src/dst functions).
Bug: 9797008
Change-Id: Ib3223ca1b99e729ae8229adc2d03f4dc3103d97c
In practice, thanks to all the registers the stubs don't actually change,
but it's confusing to have an incorrect declaration.
I suspect that fcntl remains broken for aarch64; it happens to work for
x86_64 because the first vararg argument gets placed in the right register
anyway, but I have no reason to believe that's true for aarch64.
This patch adds a unit test, though, so we'll be able to tell when we get
as far as running the unit tests.
Change-Id: I58dd0054fe99d7d51d04c22781d8965dff1afbf3
Integration of kernel VDSO into internal bionic data structures using
common functions.
Fix for dl_iterate_phdr function: the function provides incorrect
address of object in case of nonzero virtual and base addresses.
Location in address space of a particular program header should be
calculated using the formula: addr = base_addr + virtual_addr.
Signed-off-by: Sergey Melnikov <sergey.melnikov@intel.com>
Change-Id: Ie2ab4257fd456242aab8afed0bd5bd6b29e81d6d
<pthread.h> was missing nonnull attributes, noreturn on pthread_exit,
and had incorrect cv qualifiers for several standard functions.
I've also marked the non-standard stuff (where I count glibc rather
than POSIX as "standard") so we can revisit this cruft for LP64 and
try to ensure we're compatible with glibc.
I've also broken out the pthread_cond* functions into a new file.
I've made the remaining pthread files (plus ptrace) part of the bionic code
and fixed all the warnings.
I've added a few more smoke tests for chunks of untested pthread functionality.
We no longer need the libc_static_common_src_files hack for any of the
pthread implementation because we long since stripped out the rest of
the armv5 support, and this hack was just to ensure that __get_tls in libc.a
went via the kernel if necessary.
This patch also finishes the job of breaking up the pthread.c monolith, and
adds a handful of new tests.
Change-Id: Idc0ae7f5d8aa65989598acd4c01a874fe21582c7
There is a known bug running clone with the CLONE_VM flag, so for host
create an empty test.
Change the expected output of the stdio test for a glibc difference.
Change the pause test to use ScopedSignalHandler to setup/restore the SIGALRM
handler.
After this, running bionic-unit-tests-glibc passes for all tests.
Bug: 11389824
Change-Id: Ib304eae4164115835a54991dfdca5821ecc3db5e
Add a bionic-unit-tests-glibc-run target to run the glibc bionic unit tests.
Modify the bionic-unit-tests-run-on-host to make sure that the /system/bin
directory is created properly.
Also remove the EXTERNAL_STORAGE variable which isn't used any more.
Bug: 11234772
Change-Id: I9aea501d05700b29e938f672474d550b1872a78b
Modern architectures only get the *at(2) system calls. For example,
aarch64 doesn't have open(2), and expects userspace to use openat(2)
instead.
Change-Id: I87b4ed79790cb8a80844f5544ac1a13fda26c7b5
Using /proc seems like a better idea because it's more similar across devices.
I've switched to ensuring we check the initial and final elements in the struct
too, so we have more reason to believe the whole struct is converted correctly.
Change-Id: Ia23403369485747c1452292f6c9df2bb233c04fb
Also clean up <signal.h> and revert the hacks that were necessary
for 64-bit in linker/debugger.cpp until now.
Change-Id: I3b0554ca8a49ee1c97cda086ce2c1954ebc11892
Let's have both use rt_sigprocmask, like in glibc. The 64-bit ABIs
can share the same code as the 32-bit ABIs.
Also, let's test the return side of these calls, not just the
setting.
Bug: 11069919
Change-Id: I11da99f85b5b481870943c520d05ec929b15eddb
This fixes a few diverse issues that clang warns on in bionic. First,
it specifies the appropriate converted types for format specifiers.
The "h" and "hh" modifiers specify that the user is passing a short or
char respectively. We were passing int deliberately in both cases and
relying on the compiler to implicitly downcast to the smaller type.
We also remove the non-standard "d" suffix from our double-precision
floating point constant. This is an extension for gcc that clang does
not implement. The third fix is to mark the c1 variable as unused,
since it truly is neither read nor written.
Change-Id: I4793352b9d3e58f1f4cac9e7581ef4b2a70b43c7
Previously, FORTIFY_SOURCE used single macros to define these standard
functions for use with clang. This can cause conflicts with other macros used
to call these functions, particularly when those macros expand the number of
arguments to the function. This change wraps our macro definitions, so that
expansion properly takes place for programmer arguments first.
Change-Id: I55929b1fd2a643b9d14a17631c4bcab3b0b712cf
Make sure the buffer we're dealing with has enough room.
Might as well check for memory issues while we're here,
even though I don't imagine they'll happen in practice.
Change-Id: I0ae1f0f06aca9ceb91e58c70183bb14e275b92b5
malloc and family were not declared with __attribute__((alloc_size)).
This was (sometimes) preventing FORTIFY_SOURCE related functions
from knowing the size of the buffer it's dealing with, inhibiting
FORTIFY_SOURCE protections.
Add __attribute__((alloc_size))
Information about the alloc_size attribute can be found
at http://gcc.gnu.org/onlinedocs/gcc/Function-Attributes.html
Change-Id: Ia2f0a445f0170a7325f69259b5e7fb35a9f14921
Fortify calls to recv() and recvfrom().
We use __bos0 to match glibc's behavior, and because I haven't
tested using __bos.
Change-Id: Iad6ae96551a89af17a9c347b80cdefcf2020c505
Found by adapting the simple unit tests for libc logging to test
snprintf too. Fix taken from upstream OpenBSD without updating
the rest of stdio.
Change-Id: Ie339a8e9393a36080147aae4d6665118e5d93647
The tests are using /data/data which is not accessible to a non-root
user. Change this to /data/local/tmp which is accessible to all users.
Bug: 8291716
(cherry picked from commit 5227bb363d)
Change-Id: I83bf70aa8edd21b00321363d7ddcb65a5f048ba5
The properties tests creates a temporary directory in /data/nativetest,
but this directory might not exist in all circumstances.
Change this to create the temporary directory in /data/local/tmp.
(cherry picked from commit bd6dc6a886)
Change-Id: I15144ece7ffb5c29eded9a1ef399db630f6af5ab
I accidentally did a signed comparison of the size_t values passed in
for three of the _chk functions. Changing them to unsigned compares.
Add three new tests to verify this failure is fixed.
Bug: 10691831
Merge from internal master.
(cherry-picked from 883ef2499c)
Change-Id: Id9a96b549435f5d9b61dc132cf1082e0e30889f5
Allows running the tests linked with bionic .so on the host if host and
target are compatible. See more comments and usage limitation inlined.
make bionic-unit-tests-run-on-host should do build and run.
Change-Id: I5946fa72e009d324baa9da18f460294b3c1a615e
Signed-off-by: Pavel Chupin <pavel.v.chupin@intel.com>
I accidentally did a signed comparison of the size_t values passed in
for three of the _chk functions. Changing them to unsigned compares.
Add three new tests to verify this failure is fixed.
Bug: 10691831
Change-Id: Ia831071f7dffd5972a748d888dd506c7cc7ddba3
The tests are using /data/data which is not accessible to a non-root
user. Change this to /data/local/tmp which is accessible to all users.
Bug: 8291716
Change-Id: I66476bbbaf5d1dc0c103863abf9219405f06a85b
clock_gettime was returning EINVAL for the values
produced by pthread_getcpuclockid.
Bug: 10346183
(cherry picked from commit 9b06cc3c1b)
Change-Id: Ib81a7024c218a4502f256c3002b9030e2aaa278d
I've mailed the tz list about this, and will switch to whatever upstream
fix comes along as soon as it's available.
Bug: 10310929
(cherry picked from commit 7843d44a59)
Change-Id: I205e2440703444c50cecd91d3458d33613ddbc59
I've mailed the tz list about this, and will switch to whatever upstream
fix comes along as soon as it's available.
Bug: 10310929
Change-Id: I36bf3fcf11f5ac9b88137597bac3487a7bb81b0f
clock_gettime was returning EINVAL for the values
produced by pthread_getcpuclockid.
Bug: 10346183
Change-Id: Iabe643d7d46110bb311a0367aa0fc737f653208e
The properties tests creates a temporary directory in /data/nativetest,
but this directory might not exist in all circumstances.
Change this to create the temporary directory in /data/local/tmp.
Change-Id: I812d3e24fcd084c5d74055c9faa95b1656f255bc
__memcmp16 was missing in x86. Also added C-version for backward
compatibility. Added bionic test for __memcmp16 and for wmemcmp.
Change-Id: I33718441e7ee343cdb021d91dbeaf9ce2d4d7eb4
Signed-off-by: Alexander Ivchenko <alexander.ivchenko@intel.com>
pthread_getattr_np was reporting the values supplied to us, not the values we
actually used, which is kinda the whole point of pthread_getattr_np.
pthread_attr_setguardsize and pthread_attr_setstacksize were reporting EINVAL
for any size that wasn't a multiple of the system page size. This is
unnecessary. We can just round like POSIX suggests and glibc already does.
Also improve the error reporting for pthread_create failures.
Change-Id: I7ebc518628a8a1161ec72e111def911d500bba71
Our intptr_t and uintptr_t aren't "long". Add a compilation test so we remember
to fix this to cope with 32- and 64-bit later.
Bug: http://code.google.com/p/android/issues/detail?id=57218
Change-Id: I2f816d339edb4f7d57e4418b818fb4c602093f38
Get rid of a lot of the duplication in the various FORTIFY_SOURCE
tests. Instead, we build 4 separate static libraries, with
4 different compile time options, and link them into the final test
binary.
Change-Id: Idb0b7cccc8dd837adb037bf4ddfe8942ae138230
Enable FORTIFY_SOURCE protections under clang for the following
functions:
* vsprintf
* vsnprintf
and add unittests.
Change-Id: I90f8a27f7b202c78b5dd8ebf53050bf9e33496f7
d329697 is too complicated. Change the multiple property pages back to
a single 128K property area that's mapped in entirely at initialization
(the memory will not get allocated until the pages are touched).
d329697 has other changes useful for testing (moving property area
initialization inside bionic and adding __system_property_set_filename)
so undo the change manually rather than with git revert.
Change-Id: Icd137669a4f8bc248e9dd2c1e8cc54e9193c9a6d
Signed-off-by: Greg Hackmann <ghackmann@google.com>
Deliberately put items several levels deep in the trie hierarchy to test
the trie traversal
Change-Id: I995a1cdd3b5e74162fb5d25bc0f65140bdf2f719
Signed-off-by: Greg Hackmann <ghackmann@google.com>
Kernel provides virtual DSO for stack unwinding/exception handlind info for
signal usage case. Stack unwinding routines use 'dl_iterate_phdr' function
for additional DWARF info gathering from DSOs. Patch enables virtual DSO
enumeration via dl_iterate_phdr function.
Signed-off-by: Sergey Melnikov <sergey.melnikov@intel.com>
Change-Id: Ic2882b28f40b456a088bc1e63c50cbfda7e4a102
d329697 is too complicated. Change the multiple property pages back to
a single 128K property area that's mapped in entirely at initialization
(the memory will not get allocated until the pages are touched).
d329697 has other changes useful for testing (moving property area
initialization inside bionic and adding __system_property_set_filename)
so undo the change manually rather than with git revert.
Signed-off-by: Greg Hackmann <ghackmann@google.com>
(cherry picked from commit 5f05348c18)
Change-Id: I690704552afc07a4dd410277893ca9c40bc13e5f
The property area is initially one 4K region, automatically expanding as
needed up to 64 regions.
To avoid duplicating code, __system_property_area_init() now allocates
and initializes the first region (previously it was allocated in init's
init_property_area() and initialized in bionic). For testing purposes,
__system_property_set_filename() may be used to override the file used
to map in regions.
Signed-off-by: Greg Hackmann <ghackmann@google.com>
(cherry picked from commit d32969701b)
Change-Id: I038d451fe8849b0c4863663eec6f57f6521bf4a7
d329697 is too complicated. Change the multiple property pages back to
a single 128K property area that's mapped in entirely at initialization
(the memory will not get allocated until the pages are touched).
d329697 has other changes useful for testing (moving property area
initialization inside bionic and adding __system_property_set_filename)
so undo the change manually rather than with git revert.
Change-Id: I0ecb27843404f93af5489f15bfe657d65175e4f0
Signed-off-by: Greg Hackmann <ghackmann@google.com>
Deliberately put items several levels deep in the trie hierarchy to test
the trie traversal
Change-Id: Id3cbd2e7d3500216b1ac8025eac70c0939622903
Signed-off-by: Greg Hackmann <ghackmann@google.com>
The property area is initially one 4K region, automatically expanding as
needed up to 64 regions.
To avoid duplicating code, __system_property_area_init() now allocates
and initializes the first region (previously it was allocated in init's
init_property_area() and initialized in bionic). For testing purposes,
__system_property_set_filename() may be used to override the file used
to map in regions.
Change-Id: Ibe00ef52464bfa590953c4699a6d98383b0142b1
Signed-off-by: Greg Hackmann <ghackmann@google.com>
find_nth() will be inefficient on a trie. Since find_nth() is only used
internally and only for enumerating properties, we can add a foreach()
function to do this directly.
Signed-off-by: Greg Hackmann <ghackmann@google.com>
(cherry picked from commit 577418403d)
Change-Id: Iaca97d1182ce2c28863ba85241cbb5cf6185eb2f
The properties benchmarks were reading n properties from a property
area with n properties in it, which was making it hard to compare
the time between runs of different sizes. Change the benchmark
to read a random property per iteration so the numbers between
runs are comparable.
Change-Id: Ib1648ce0948d9038fce76d209608427376cfb8da
In 829c089f83, we disabled all
FORTIFY_SOURCE support when compiling under clang. At the time,
we didn't have proper test cases, and couldn't easily create targeted
clang tests.
This change re-enables FORTIFY_SOURCE support under clang for a
limited set of functions, where we have explicit unittests available.
The functions are:
* memcpy
* memmove
* strcpy
* strncpy
* strcat
* strncat
* memset
* strlen (with modifications)
* strchr (with modifications)
* strrchr (with modifications)
It may be possible, in the future, to enable other functions. However,
I need to write unittests first.
For strlen, strchr, and strrchr, clang unconditionally calls the
fortified version of the relevant function. If it doesn't know the
size of the buffer it's dealing with, it passes in ((size_t) -1),
which is the largest possible size_t.
I added two new clang specific unittest files, primarily copied
from fortify?_test.cpp.
I've also rebuild the entire system with these changes, and didn't
observe any obvious problems.
Change-Id: If12a15089bb0ffe93824b485290d05b14355fcaa
Removed 'join_count' from pthread_internal_t and switched to using the flag
PTHREAD_ATTR_FLAG_JOINED to indicate if a thread is being joined. Combined with
a switch to a while loop in pthread_join, this fixes spurious wake-ups but
prevents a thread from being joined multiple times. This is fine for
two reasons:
1) The pthread_join specification allows for undefined behavior when multiple
threads try to join a single thread.
2) There is no thread safe way to allow multiple threads to join a single
thread with the pthread interface. The second thread calling pthread_join
could be pre-empted until the thread is destroyed and its handle reused for
a different thread. Therefore multi-join is always an error.
Bug: https://code.google.com/p/android/issues/detail?id=52255
Change-Id: I8b6784d47620ffdcdbfb14524e7402e21d46c5f7
7e6ce1a3c5 fixed abort() to raise
SIGABRT rather than causing SIGSEGV. However, the unittests were
not updated.
Fix unittests.
Change-Id: I73db194127b9b9e9440358aa94273863765a736b
- Implemented chk_memalign.
- Fixed a few bugs in leak_memalign.
- Implemented {leak,fill,check,qemu}_malloc_usable_size.
- Make malloc_usable_size update at run time.
- Add malloc_test.cpp as a small set of tests for the
malloc debug routines.
- Fix the qemu routines since it's been broken since it moved to C++.
- Add support for the %u format to the out_vformat in libc_logging.cpp.
This is used by the emulator code.
Tested using the bionic-unit-tests with setprop libc.debug.malloc
set to 1, 5, and 10.
I tested as much as possible on the emulator, but tracing doesn't appear
to be working properly.
Bug: 6143477
Merge change from internal master.
(cherry-picked from commit 3d594c2580)
Change-Id: I4ae00fffba82315a8c283f35893fd554460722fb
__strcat_chk and __strncat_chk are slightly inefficient,
because they end up traversing over the same memory region
two times.
This change optimizes __strcat_chk / __strncat_chk so they
only access the memory once. Although I haven't benchmarked these
changes, it should improve the performance of these functions.
__strlen_chk - expose this function, even if -D_FORTIFY_SOURCE
isn't defined. This is needed to compile libc itself without
-D_FORTIFY_SOURCE.
Change-Id: Id2c70dff55a276b47c59db27a03734d659f84b74
Add support for fortify source level 2 to strncpy.
This will enable detection of more areas where strncpy
is used inappropriately. For example, this would have detected
bug 8727221.
Move the fortify_source tests out of string_test.cpp, and
put it into fortify1_test.cpp.
Create a new fortify2_test.cpp file, which copies all
the tests in fortify1_test.cpp, and adds fortify_source level
2 specific tests.
Change-Id: Ica0fba531cc7d0609e4f23b8176739b13f7f7a83
- eventfd.cpp and eventfd.s will output to the same file when building libc.a
out/target/product/*/obj/STATIC_LIBRARIES/libc_intermediates/WHOLE/libc_common_objs/eventfd.o
- And then `eventfd` will undefined when statically linked to libc.
Also add a unit test.
Change-Id: Ib310ade3256712ca617a90539e8eb07459c98505
We only need one logging API, and I prefer the one that does no
allocation and is thus safe to use in any context.
Also use O_CLOEXEC when opening the /dev/log files.
Move everything logging-related into one header file.
Change-Id: Ic1e3ea8e9b910dc29df351bff6c0aa4db26fbb58
In the old code, the index was a file to itself, so it made sense to
read until you hit the end of the file. In the new code, the index is
followed by hundreds of KiB of data, so we need to just search the
index.
Bug: 8368791
Change-Id: Icf5f8b5516cf3a93679fa849c9f6cd1cb100e0f1
Normally, the C library implicitly caches your timezone by virtue
of the fact that the prehistoric API assumes a single timezone for
the entire process.
The unfortunate mktime_tz and localtime_tz extensions work around
this, but represent timezones as strings to their callers, so code
that makes heavy use of these needs a cache to be able to perform
acceptably until it can hopefully one day be rewritten to use
java.util.Calendar or icu4c.
Bug: 8270865
Change-Id: I92e3964e86dc33ceac925f819cc5e26ff4203f50
This gets us back to using vfork now our ARM vfork assembler stub is
fixed, and adds the missing thread safety for the 'pidlist'.
Bug: 5335385
Change-Id: Ib08bfa65b2cb9fa695717aae629ea14816bf988d
This is actually a slightly newer upstream version than the one I
originally pulled. Hopefully now it's in upstream-freebsd it will
be easier to track upstream, though I still need to sit down and
write the necessary scripts at some point.
Bug: 5110679
Change-Id: I87e563f0f95aa8e68b45578e2a8f448bbf827a33
We could special-case raise(3) in non-threaded programs, but the more
conservative course is to make pthread_kill(3) work in signal handlers
at the cost of a race shared by other C libraries.
Change-Id: I59fb23d03bdabf403435e731704b33acdf3e0234
after change 32822 was rejected, this is the more light-weight
version of the fix: libc/include/sys/types.h already - via
libc/kernel/common/linux/posix_types.h - includes a definition
of __kernel_ssize_t from libc/kernel/arch-*/asm/posix_types.h
which is architecture-specific, toolchain-agnostic and also
gets rid of the gcc -Wformat warning (which it issues correctly,
since this i̲s̲ indeed a bug in bionic)
Change-Id: Ie4503ab16628bc25815a836d07556f665e9795c7
