Commit Graph

252 Commits

Author SHA1 Message Date
Nick Kralevich
4f40e511b0 libc: cleanup strchr
Move strchr to a .cpp file, and change to bionic directory.

Change-Id: I64ade7df326c0a9a714aca4caf5647b6833b1c97
2013-05-02 13:58:03 -07:00
Elliott Hughes
0b25f633a2 Switch to current FreeBSD qsort.
Change-Id: Ic46cd0b663dc5fa78c99dd38db0bfe849a25e789
2013-04-11 18:08:34 -07:00
Elliott Hughes
6b05c8e280 Start moving to current FreeBSD stdio.
This only touches the easy stuff.

Change-Id: Iecee57f1681dba5c56bff59f0e9a89811a71f0ca
2013-04-11 13:55:01 -07:00
Kito Cheng
4ca685e36e Add missing include and function prototype for sched_getaffinity.
Change-Id: I649633c8d074def5d05bd0c8b92fb680d9d11d51
2013-04-10 17:44:29 -07:00
Kito Cheng
8baa929d5d Prevent name conflict for eventfd.cpp and eventfd.s when building libc.a
- 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
2013-04-03 11:10:37 -07:00
Elliott Hughes
8794ece296 Replace unnecessary ARM uses of <sys/linux-syscalls.h> with <asm/unistd.h>.
For some reason, socketcalls.c was only being compiled for ARM, where
it makes no sense. For x86 we generate stubs for the socket functions
that use __NR_socketcall directly.

Change-Id: I84181e6183fae2314ae3ed862276eba82ad21e8e
2013-03-21 23:07:11 -07:00
Elliott Hughes
17a8b0db63 Expose wait4 as wait4 rather than __wait4.
This helps strace(1) compile with one fewer hack.

Change-Id: I5296d0cfec5546709cda990abd705ad33d7c4626
2013-03-21 16:14:06 -07:00
Elliott Hughes
8f2a5a0b40 Clean up internal libc logging.
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
2013-03-15 16:12:58 -07:00
Christopher Ferris
306a353825 Remove unused arm defines.
The defines HAVE_32_BYTE_CACHE_LINES and ARCH_ARM_USE_NON_NEON_MEMCPY
are not used by any code. The previous memcpy code that used these
has been split into different architecture versions to avoid the need
for them.

Bug: 8005082

Merge from internal master.

(cherry-picked from commit 6e1a5cf31b)

Change-Id: Ib18fc3f4131b21cdbd19b9dde7697ac25d066fcf
2013-03-14 15:32:18 -07:00
Christopher Ferris
04954a43b3 Break bionic implementations into arch versions.
Move arch specific code for arm, mips, x86 into separate
makefiles.
In addition, add different arm cpu versions of memcpy/memset.

Bug: 8005082

Merge from internal master (acdde8c1cf).

Change-Id: I04f3d0715104fab618e1abf7cf8f7eec9bec79df
2013-03-12 14:06:08 -07:00
Elliott Hughes
6b3f49a537 Upgrade to current NetBSD popen/pclose.
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
2013-03-06 16:20:55 -08:00
Elliott Hughes
642331b5dd Fix debug malloc.
This was broken by the change to use AT_RANDOM for the stack guards.

Bug: 7959813
Bug: 8330764
Change-Id: I791900092b72a9a900f16585237fa7ad82aaed9f
2013-03-06 15:03:53 -08:00
Elliott Hughes
eb93ebffba Switch to upstream-freebsd for the unmolested wchar code.
Change-Id: I87b4d76ff8da04109ae53638eec4f11629798960
2013-03-01 18:35:56 -08:00
Elliott Hughes
f0777843c0 Move realpath.c to upstream-freebsd.
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
2013-03-01 17:11:39 -08:00
Elliott Hughes
701bec2af3 Reimplement scandir(3).
The old scandir implementation didn't take into account the varying
size of directory entries, and didn't correctly clean up on its
error exits.

Bug: 7339844
Change-Id: Ib40e3564709752241a3119a496cbb2192e3f9abe
2013-02-25 13:14:31 -08:00
Elliott Hughes
9d23e04c43 Fix pthreads functions that should return ESRCH.
imgtec pointed out that pthread_kill(3) was broken, but most of the
other functions that ought to return ESRCH for invalid/exited threads
were equally broken.

Change-Id: I96347f6195549aee0c72dc39063e6c5d06d2e01f
2013-02-19 12:21:41 -08:00
Elliott Hughes
081318e355 dalvik is big enough and ugly enough to handle System.arraycopy itself.
Change-Id: I4b54a15ea101c0c6bab06cfb11e4178f5a57fc05
2013-02-15 14:27:52 -08:00
Elliott Hughes
fb7eb5e07f Simplify __stack_chk_fail, and fix it so we get debuggerd stack traces.
Bug: 2487269
Change-Id: Iec5e470fc22cd9108404f634a9d4baa2c7b7f58f
2013-02-14 14:37:34 -08:00
Elliott Hughes
dc5ec07158 Turn on -Werror for ssp.cpp.
libc_bionic.a is already compiled -Werror, but this one file gets
compiled into its own library because it needs to be compiled with
-fno-stack-protector.

Change-Id: I273c535ab5c73ccaccbcf793fda1f788a2589abe
2013-02-14 11:15:58 -08:00
Elliott Hughes
d2547040a1 ffs was not being built for x86.
Change-Id: I53e92273664a4d0a13536c2fa1aeb87e1f3cf4e8
2013-02-13 16:31:52 -08:00
Elliott Hughes
91a9925998 Everyone has a TLS register.
Change-Id: Id7cdf67087aa7d5074c9c59b7e595bc391d9f146
2013-02-12 21:56:42 -08:00
Elliott Hughes
4b4a882428 Clean up pthread_create.
Bug: 3461078
Change-Id: I082122a86d7692cd58f4145539241be026258ee0
2013-02-12 17:15:59 -08:00
Elliott Hughes
3e898476c7 Revert "Revert "More pthreads cleanup.""
This reverts commit 6f94de3ca4

(Doesn't try to increase the number of TLS slots; that leads to
an inability to boot. Adds more tests.)

Change-Id: Ia7d25ba3995219ed6e686463dbba80c95cc831ca
2013-02-12 15:27:18 -08:00
Elliott Hughes
fcaf4e9f9b Merge "Revert "More pthreads cleanup."" 2013-02-12 06:07:32 +00:00
Elliott Hughes
6f94de3ca4 Revert "More pthreads cleanup."
This reverts commit 2a1bb4e646

Change-Id: Ia443d0748015c8e9fc3121e40e68258616767b51
2013-02-12 06:06:22 +00:00
Elliott Hughes
85f491f96d Merge "More pthreads cleanup." 2013-02-12 02:33:08 +00:00
Elliott Hughes
ba342c11ad Fix MIPS build.
Change-Id: I4863f21f3c2fd597ea36cb7096fc72db808643a3
2013-02-11 18:06:23 -08:00
Elliott Hughes
2a1bb4e646 More pthreads cleanup.
POSIX says pthread_create returns EAGAIN, not ENOMEM.

Also pull pthread_attr_t functions into their own file.

Also pull pthread_setname_np into its own file.

Also remove unnecessary #includes from pthread_key.cpp.

Also account for those pthread keys used internally by bionic,
so they don't count against the number of keys available to user
code. (They do with glibc, but glibc's limit is the much more
generous 1024.)

Also factor out the common errno-restoring idiom to reduce gotos.

Bug: 6702535
Change-Id: I555e66efffcf2c1b5a2873569e91489156efca42
2013-02-11 14:56:39 -08:00
Elliott Hughes
44b53ad681 Revert "Revert "Pull the pthread_key_t functions out of pthread.c.""
This reverts commit 6260553d48

(Removing the accidental libm/Android.mk change.)

Change-Id: I6cddd9857c31facc05636e8221505b3d2344cb75
2013-02-11 12:20:33 -08:00
Elliott Hughes
6260553d48 Revert "Pull the pthread_key_t functions out of pthread.c."
This reverts commit ad59322ae4

somehow my unfinished libm/Android.mk change got into here.

Change-Id: I46be626c5269d60fb1ced9862f2ebaa380b4e0af
2013-02-11 20:18:16 +00:00
Elliott Hughes
ad59322ae4 Pull the pthread_key_t functions out of pthread.c.
This was originally motivated by noticing that we were setting the
wrong bits for the well-known tls entries. That was a harmless bug
because none of the well-known tls entries has a destructor, but
it's best not to leave land mines lying around.

Also add some missing POSIX constants, a new test, and fix
pthread_key_create's return value when we hit the limit.

Change-Id: Ife26ea2f4b40865308e8410ec803b20bcc3e0ed1
2013-02-11 12:00:48 -08:00
Elliott Hughes
42b2c6a5ee Clean up the argc/argv/envp/auxv handling.
There's now only one place where we deal with this stuff, it only needs to
be parsed once by the dynamic linker (rather than by each recipient), and it's
now easier for us to get hold of auxv data early on.

Change-Id: I6314224257c736547aac2e2a650e66f2ea53bef5
2013-02-07 11:44:21 -08:00
Elliott Hughes
428f5567be Remove bogus extra alignment from sbrk.
Bug: https://code.google.com/p/android/issues/detail?id=37349
Change-Id: I970c7b6be7bb7fbe6bbbe2c332f05816aeb0e09f
2013-02-05 16:10:59 -08:00
Elliott Hughes
2b47307012 Our strcoll(3) is no different from NetBSD's, so take exactly theirs.
Change-Id: I45251047202a229f9175735ecc23c0ebcda71e8d
2013-01-22 15:10:19 -08:00
Elliott Hughes
c51cd764a2 Avoid overflow in memccpy.
Just take the upstream NetBSD code.

Bug: http://code.google.com/p/android/issues/detail?id=43078
Change-Id: Ibbbde9d00e8bc6a09c9503aab2b04b4e3d1f98b0
2013-01-22 14:41:23 -08:00
Elliott Hughes
1e980b6bc8 Fix the duplication in the debugging code.
We had two copies of the backtrace code, and two copies of the
libcorkscrew /proc/pid/maps code. This patch gets us down to one.

We also had hacks so we could log in the malloc debugging code.
This patch pulls the non-allocating "printf" code out of the
dynamic linker so everyone can share.

This patch also makes the leak diagnostics easier to read, and
makes it possible to paste them directly into the 'stack' tool (by
using relative PCs).

This patch also fixes the stdio standard stream leak that was
causing a leak warning every time tf_daemon ran.

Bug: 7291287
Change-Id: I66e4083ac2c5606c8d2737cb45c8ac8a32c7cfe8
2013-01-18 22:20:06 -08:00
Nick Kralevich
2c5153b043 libc: add getauxval()
Add support for getauxval().  This method allows a program an easy way
to retrieve information from the kernel auxiliary vector, and will
hopefully replace other clumsy ways of accessing this same information.

This particular function was also added to glibc in glibc 2.16.
See the following URLs for more details.

  * http://lwn.net/Articles/519085/
  * http://www.gnu.org/software/libc/manual/html_node/Auxiliary-Vector.html

This change is a prerequisite for bug 7959813.

Bug: http://code.google.com/p/android/issues/detail?id=38441
Change-Id: Iba19d899df334bddc6f4899077ece2fc87564ea8
2013-01-11 16:44:15 -08:00
Elliott Hughes
c5d028fc91 Only have one copy of the kernel_sigset_t hack, and add more tests.
Change-Id: I377522fcba6fb4b5fd2754ab15b091014bd7c16f
2013-01-10 14:42:14 -08:00
Rom Lemarchand
a4b2dc016f Add signalfd call to bionic
Add signalfd() call to bionic.

Adding the signalfd call was done in 3 steps:
- add signalfd4 system call (function name and syscall
  number) to libc/SYSCALLS.TXT
- generate all necessary headers by calling
  libc/tools/gensyscalls.py. This patch is adding
  the generated files since the build system
  does not call gensyscalls.py.
- create the signalfd wrapper in signalfd.cpp and add
  the function prototype to sys/signalfd.h

(cherry-pick of 0c11611c11, modified to
work with older versions of GCC still in use on some branches.)

Change-Id: I4c6c3f12199559af8be63f93a5336851b7e63355
2013-01-10 13:14:46 -08:00
Elliott Hughes
a55f63083f Define _POSIX_MONOTONIC_CLOCK and implement sysconf(_SC_MONOTONIC_CLOCK).
Bug: http://code.google.com/p/android/issues/detail?id=39680
Change-Id: I11cf10a66f9d305868a725f04f581099fb88bbfc
2013-01-02 14:23:43 -08:00
Chris Dearman
d8a5a6f513 Use pthread_kill() in raise()
raise() should use pthread_kill() in a pthreads environment.
For bionic this means it should always be used.

Change-Id: Ic679272b664d2b8a7068b628fb83a9f7395c441f
2012-12-10 11:20:57 -08:00
Elliott Hughes
4a9e837840 Reduce the exposure of the __set_errno implementation detail.
Change-Id: I395e1b46a9491e34fc53e71853e932ea90b3d1cc
2012-11-30 12:05:18 -08:00
Pavel Chupin
20c4a3a8ee Replace .S version of x86 crtfiles with .c version
This patch replaces .S versions of x86 crtfiles with .c which are much
easier to support. Some of the files are matching .c version of Arm
crtfiles. x86 files required some cleanup anyway and this cleanup actually
led to matching Arm files.

I didn't change anything to share the same crt*.c between x86 and Arm. I
prefer to keep them separate for a while in case any change is required
for one of the arch, but it's good thing to do in the following patches.

Change-Id: Ibcf033f8d15aa5b10c05c879fd4b79a64dfc70f3
Signed-off-by: Pavel Chupin <pavel.v.chupin@intel.com>
2012-11-30 17:41:25 +04:00
Elliott Hughes
58b575485c Clean up the <libgen.h> implementation a little, bring in tests.
Most of these tests were in system/extras, but I've added more to cover other
cases explicitly mentioned by POSIX.

Change-Id: I5e8d77e4179028d77306935cceadbb505515dcde
2012-10-29 14:27:10 -07:00
David 'Digit' Turner
c30396f5f2 libc: Fix alphasort() signature (and implementation).
The declaration for alphasort() in <dirent.h> used the deprecated:

  int alphasort(const void*, const void*);

while both Posix and GLibc use instead:

  int alphasort(const struct dirent** a, const struct dirent** b);

See: http://pubs.opengroup.org/onlinepubs/9699919799/functions/alphasort.html

This patch does the following:

- Update the declaration to match Posix/GLibc
- Get rid of the upstream BSD code which isn't compatible with the new
  signature.
- Implement a new trivial alphasort() with the right signature, and
  ensure that it uses strcoll() instead of strcmp().
- Remove Bionic-specific #ifdef .. #else .. #endif block in
  dirent_test.cpp which uses alphasort().

Even through strcoll() currently uses strcmp(), this does the right
thing in the case where we decide to update strcoll() to properly
implement locale-specific ordered comparison.

Change-Id: I4fd45604d8a940aaf2eb0ecd7d73e2f11c9bca96
2012-10-29 07:44:27 -07:00
Elliott Hughes
063cfb2084 Clean up the implementation of the <dirent.h> functions.
Change-Id: I3c647cc9588525afc41fee90ee468d58cd13503a
2012-10-26 16:42:06 -07:00
Elliott Hughes
ad88a08631 Per-thread -fstack-protector guards for x86.
Based on a pair of patches from Intel:

  https://android-review.googlesource.com/#/c/43909/
  https://android-review.googlesource.com/#/c/44903/

For x86, this patch supports _both_ the global that ARM/MIPS use
and the per-thread TLS entry (%gs:20) that GCC uses by default. This
lets us support binaries built with any x86 toolchain (right now,
the NDK is emitting x86 code that uses the global).

I've also extended the original tests to cover ARM/MIPS too, and
be a little more thorough for x86.

Change-Id: I02f279a80c6b626aecad449771dec91df235ad01
2012-10-25 12:04:03 -07:00
Elliott Hughes
ab44f52202 More upstream NetBSD upgrades.
Change-Id: Idb781d37de3b05585271d7d258ecffd5ba87d0b8
2012-10-23 16:05:09 -07:00
Elliott Hughes
e8bcca3a2c Upgrade more functions to the current upstream NetBSD copy.
Change-Id: Ie0b3f8b3fccef28609eb210434413ebd51d6ef45
2012-10-23 12:29:53 -07:00
Elliott Hughes
29c7f0b4d1 Move setlocale(3) and the wchar stubs over to .cpp.
Also separate out the C++ files so we can use -Werror on them. I'd
rather wait for LOCAL_CPPFLAGS to be in AOSP, but this also lets us
see which files still need to be sorted into one bucket or the other.

Change-Id: I6acc1f7c043935c70a3b089f705d218b9aaaba0a
2012-10-22 17:05:27 -07:00