Commit graph

833 commits

Author SHA1 Message Date
Stephen Hines
b5f58793cf Enable clang builds of mips/mips64 in bionic again.
Bug: http://b/25291096

The latest clang-2812033 prebuilts have all the necessary cherry-picks
to fix the mips booting issues from the past.

Change-Id: Ib3b364daaa50ef55401e016b92419b64f02f03dc
2016-04-26 21:42:02 -07:00
Elliott Hughes
13d79abebe Fix ftw/nftw to only report unreadable directories once.
Also remove all the copy & paste.

Bug: http://b/28197840
Change-Id: Ia43e9ffd838dabb511a6e54403d6f62066383e4d
2016-04-18 12:05:18 -07:00
Elliott Hughes
6cfb84b97e Add trivial no-op <nl_types.h>.
Needed to build OpenMP.

Bug: http://b/27617302
Change-Id: Iac15c84ead6f5d5274cfdb2d6d4a4ec0072244bb
2016-04-06 17:22:44 -07:00
Elliott Hughes
26fda778f7 Fix b64_pton.
This was fixed upstream years ago. While we're here, let's switch to the
OpenBSD copy (because that's our majority upstream BSD, not because they
found and fixed this bug first).

Bug: http://b/28035006
Change-Id: I53dd915a8122bfd7a6d58f01f9902d1586a47e23
2016-04-06 12:08:45 -07:00
Elliott Hughes
e4510a2779 Break up the rest of stubs.cpp.
Bug: http://b/27999086
Change-Id: Ibcc2c5171d43ebd26b486642052738473f3b7714
2016-04-06 08:34:58 -07:00
Mark Salyzyn
b38347ad8b bionic: split out getpwnam and friends
- added grp_pwd.cpp containing POSIX passwd and group functions,
  colocated because they share with the Android ID (AID) roots.
- stubs.cpp contains all the truly empty functions (network and
  protocol accessors)

Bug: 27999086
Change-Id: I036f9e2dd246f48302cb7c97d23176fa24d19c33
2016-04-06 07:26:01 -07:00
Elliott Hughes
7f72ad4d6c Add sync_file_range to <fcntl.h>.
Bug: http://b/27952303
Change-Id: Idadfacd657ed415abc11684b9471e4e24c2fbf05
2016-04-05 12:17:22 -07:00
Elliott Hughes
c9291e1bb5 Merge "Add POSIX getsubopt(3)." 2016-04-05 18:03:56 +00:00
Elliott Hughes
df143f8576 Add POSIX getsubopt(3).
Bug: http://b/27952303
Change-Id: I8a816477545dadcbd5c055714e76263574446b6f
2016-04-04 17:34:04 -07:00
Greg Hackmann
5375bf6398 Add SysV signal handling
Implement the legacy SysV signal handling functions sighold(),
sigignore(), sigpause(), sigrelse(), and sigset() in terms of the newer
POSIX signal APIs.  As of POSIX 2013 the SysV signal APIs are deprecated
but still required.

Change-Id: I4ca40e3d706605a7d1a30dc76c78b2b24586387d
Signed-off-by: Greg Hackmann <ghackmann@google.com>
2016-04-04 16:33:29 -07:00
Elliott Hughes
cf73e00dde Ensure only mips is using GCC to build bionic.
MIPS still have ld128 and 16-bit atomics issues with clang, so we can't
just remove this yet.

Bug: http://b/25291096
Change-Id: I2645ebf3af04e1a4008d70da780c04240e3d7a85
2016-04-01 10:54:27 -07:00
Elliott Hughes
cd3abe38ef Tell GCC that sometimes we have to build deprecated functions.
We're the C library. Nothing could be more deprecated.

bionic/libc/bionic/pthread_cond.cpp:243:10: error: 'int pthread_cond_timedwait_relative_np(pthread_cond_t*, pthread_mutex_t*, const timespec*)' is deprecated (declared at bionic/libc/bionic/pthread_cond.cpp:227): use pthread_cond_timedwait instead [-Werror=deprecated-declarations]
   return pthread_cond_timedwait_relative_np(cond_interface, mutex, &ts);
          ^
bionic/libc/bionic/pthread_cond.cpp:243:71: error: 'int pthread_cond_timedwait_relative_np(pthread_cond_t*, pthread_mutex_t*, const timespec*)' is deprecated (declared at bionic/libc/bionic/pthread_cond.cpp:227): use pthread_cond_timedwait instead [-Werror=deprecated-declarations]
   return pthread_cond_timedwait_relative_np(cond_interface, mutex, &ts);
                                                                       ^

Change-Id: Idb3d445e053c44180773f59774df19b324f6817f
2016-04-01 10:25:52 -07:00
Greg Hackmann
e2faf07d65 Add {get,set}domainname(2)
{get,set}domainname aren't in POSIX but are widely-implemented
extensions.

The Linux kernel provides a setdomainname syscall but not a symmetric
getdomainname syscall, since it expects userspace to get the domain name
from uname(2).

Change-Id: I96726c242f4bb646c130b361688328b0b97269a0
Signed-off-by: Greg Hackmann <ghackmann@google.com>
2016-03-25 14:16:58 -07:00
Elliott Hughes
784609317d Mandate optimized __memset_chk for arm and arm64.
This involves actually implementing assembler __memset_chk for arm64,
but that's easily done.

Obviously I'd like this for all architectures (and all the string functions),
but this is low-hanging fruit...

Change-Id: I70ec48c91aafd1f0feb974a2555c51611de9ef82
2016-03-02 11:58:41 -08:00
Elliott Hughes
b83d6747fa Improve FORTIFY failure diagnostics.
Our FORTIFY _chk functions' implementations were very repetitive and verbose
but not very helpful. We'd also screwed up and put the SSIZE_MAX checks where
they would never fire unless you actually had a buffer as large as half your
address space, which probably doesn't happen very often.

Factor out the duplication and take the opportunity to actually show details
like how big the overrun buffer was, or by how much it was overrun.

Also remove the obsolete FORTIFY event logging.

Also remove the unused __libc_fatal_no_abort.

This change doesn't improve the diagnostics from the optimized assembler
implementations.

Change-Id: I176a90701395404d50975b547a00bd2c654e1252
2016-02-26 22:06:17 -08:00
Elliott Hughes
cac2908b08 Fix regerror(..., nullptr, 0).
Found by passing a bad regular expression to the Google benchmark
code (https://github.com/google/benchmark).

Change-Id: I475db71c25706bbf02091b754acabe8254062f3a
2016-02-12 16:00:53 -08:00
Elliott Hughes
01b85d5df3 Set x86 TLS limit to 0xfffff, not PAGE_SIZE.
Not least because we set limit_in_pages to 1. PAGE_SIZE pages was never
anyone's intention.

Change-Id: Ide867f44a2fb20d4d5d0cd67ced468e8665a0193
2016-02-09 22:44:16 -08:00
Chih-Hung Hsieh
63fedd76ad Enable clang for x86_64 after fp128 fix in clang-2577113.
Upstream LLVM fix was included in prebuilt clang-2577113.

BUG: 21899249
Change-Id: Ief3f3e28650c0bbf8749a5e5d26f45c39e15ed62
2016-02-08 17:07:33 -08:00
Elliott Hughes
0c485dae70 Add in6addr_any and in6addr_loopback symbols.
Change-Id: I3a90fa448b6bd43321672ba74b84a4e9e8a67738
2016-02-03 14:13:52 -08:00
Elliott Hughes
03e65eb03b Implement funopen64.
Bug: http://b/24807045
Change-Id: I161920978161389be34b707cc6ce8e05f760d552
2016-01-26 14:45:13 -08:00
Elliott Hughes
5704c423c8 Implement POSIX lockf.
This has been requested a few times over the years. This is basically
a very late rebase of https://android-review.googlesource.com/45470
which was abandoned years ago. One addition is that this version has
_FILE_OFFSET_BITS=64 support.

POSIX puts this in <unistd.h>. glibc also has it in <fcntl.h>.

Bug: http://b/13077650
Change-Id: I5862b1dc326e326c01ad92438ecc1578d19ba739
2016-01-26 11:09:44 -08:00
Christopher Ferris
63860cb8fd Malloc debug rewrite.
The major components of the rewrite:

- Completely remove the qemu shared library code. Nobody was using it
  and it appears to have broken at some point.
- Adds the ability to enable/disable different options independently.
- Adds a new option that can enable the backtrace on alloc/free when
  a process gets a specific signal.
- Adds a new way to enable malloc debug. If a special property is
  set, and the process has an environment variable set, then debug
  malloc will be enabled. This allows something that might be
  a derivative of app_process to be started with an environment variable
  being enabled.
- get_malloc_leak_info() used to return one element for each pointer that
  had the exact same backtrace. The new version returns information for
  every one of the pointers with same backtrace. It turns out ddms already
  automatically coalesces these, so the old method simply hid the fact
  that there where multiple pointers with the same amount of backtrace.
- Moved all of the malloc debug specific code into the library.
  Nothing related to the malloc debug data structures remains in libc.
- Removed the calls to the debug malloc cleanup routine. Instead, I
  added an atexit call with the debug malloc cleanup routine. This gets
  around most problems related to the timing of doing the cleanup.

The new properties and environment variables:

libc.debug.malloc.options
  Set by option name (such as "backtrace"). Setting this to a bad value
  will cause a usage statement to be printed to the log.

libc.debug.malloc.program
  Same as before. If this is set, then only the program named will
  be launched with malloc debug enabled. This is not a complete match,
  but if any part of the property is in the program name, malloc debug is
  enabled.

libc.debug.malloc.env_enabled
  If set, then malloc debug is only enabled if the running process has the
  environment variable LIBC_DEBUG_MALLOC_ENABLE set.

Bug: 19145921

Change-Id: I7b0e58cc85cc6d4118173fe1f8627a391b64c0d7
2016-01-25 10:54:21 -08:00
Elliott Hughes
ad9c3f34f7 Merge "Add _seek64 to FILE." 2016-01-25 18:50:41 +00:00
Josh Gao
0ac0cee0d1 Remove dlmalloc.
Bug: http://b/17207577
Change-Id: Ie009badca6deb1f91b27a4340b70cdd6bedff893
2016-01-25 10:14:35 -08:00
Elliott Hughes
023c3071a0 Add _seek64 to FILE.
Move fdopen/fopen/freopen and change them to initialize _seek64 instead
of the legacy _seek. The in-memory streams can stick with _seek for now,
since you're not going to fit a > 4GiB in-memory stream on a 32-bit device
anyway.

Bug: http://b/24807045
Change-Id: I09dcb426817b571415ce24d4d15f364cdda395b3
2016-01-22 23:54:10 -08:00
Elliott Hughes
2704bd1340 Simplify fseek/ftell.
Another step towards _FILE_OFFSET_BITS=64 support.

Bug: http://b/24807045
Change-Id: I00b83c81a7b108176c4d9437bc32611f73b7e967
2016-01-21 10:34:35 -08:00
Elliott Hughes
021335ebda Move stdio implementation details around a little.
Change-Id: I24594426d5479bdd55cbef0ab1b7d76c249dbd0c
2016-01-20 08:50:51 -08:00
Elliott Hughes
8b49f53a5e Merge "Make FILE*s less usable after fclose(3)." 2016-01-20 00:13:45 +00:00
Elliott Hughes
923f165b29 Make FILE*s less usable after fclose(3).
BSD doesn't invalidate the fd stored in struct FILE, which can make
it possible (via fileno(3), for example), to perform operations on
an fd you didn't intend to (rather than just failing with EBADF).

Fixing this makes the code slightly simpler anyway, and might help
catch bad code before it ships.

Bug: http://stackoverflow.com/questions/10816837/fclose-works-differently-on-android-and-linux
Change-Id: I9db74584038229499197a2695c70b58ed0372a87
2016-01-19 15:46:05 -08:00
Chih-Hung Hsieh
b43ee658bb Switch libc default to clang.
* Default to clang when USE_CLANG_PLATFORM_BUILD is not set
  and the target has no clang bug.

BUG: 26102335
Change-Id: Ied6c9dc5593bfbadbb8d8b38e66ea237d649bae5
2016-01-19 10:59:34 -08:00
Elliott Hughes
ed57b98758 Implement if_nameindex(3)/if_freenameindex(3).
This is just a subset of the recently-implemented getifaddrs(3), though if
we want to handle interfaces (such as "rmnet_*") that don't have an address,
we need to either expose ifaddrs_storage and keep track of which interfaces
we've already seen (which is pretty messy), or refactor the netlink code so
we can reuse it and just extract the information we need for if_nameindex(3).
This patch goes the latter route.

Also clean up if_nametoindex(3) and if_indextoname(3).

Change-Id: I5ffc5df0bab62286cdda2e7af06f032c767119a8
2016-01-18 12:07:38 -08:00
Elliott Hughes
506c6deff7 Sync with upstream OpenBSD.
Also some minor build cleanup.

Change-Id: Ibd20602d7ea45685f0c47fceb00ffd6c7ae35954
2016-01-15 16:30:18 -08:00
Colin Cross
c23aeb8414 Rearrange build files to support USE_SOONG=true
Building with USE_SOONG=true will build with an Android.bp file if it is
present in the directory, otherwise an Android.mk file.  Only a few of
the bionic directories compile with soong, so include all of them from
the top level Android.mk file and remove the top level Android.bp file.
Individual subdirectories with Android.bp files will use soong with
USE_SOONG=true.

Change-Id: Idf8d7977ea4668fa646be25b543bf9d3773de615
2016-01-12 13:42:21 -08:00
Elliott Hughes
42d949ff9d Defend against -fstack-protector in libc startup.
Exactly which functions get a stack protector is up to the compiler, so
let's separate the code that sets up the environment stack protection
requires and explicitly build it with -fno-stack-protector.

Bug: http://b/26276517
Change-Id: I8719e23ead1f1e81715c32c1335da868f68369b5
2016-01-06 20:06:08 -08:00
Josh Gao
63a42070fc Kill BOARD_MALLOC_ALIGNMENT.
Bug: http://b/26403338
Change-Id: Iba4006277fdb7c7ca60542c517634ae86c847b4f
2016-01-06 14:30:26 -08:00
Josh Gao
e1f8c66d0b Merge "Replace MALLOC_IMPL with MALLOC_SVELTE." 2016-01-06 20:08:13 +00:00
Elliott Hughes
2489161ce5 Temporary hack to avoid stack protector crashes.
It'll take me a while to refactor things cleanly, but if we just want
something that boots for testing...

Bug: http://b/26276517
Change-Id: I24729d3dc546e36e0eff383f0d1d05c3aa1f2e0b
2016-01-06 11:12:06 -08:00
Josh Gao
09f4651c0e Replace MALLOC_IMPL with MALLOC_SVELTE.
Bug: http://b/26390299
Change-Id: I665f64bff4d598607e1eb7c4078819fe1d400feb
2016-01-05 11:45:45 -08:00
Elliott Hughes
9cddb482b4 Revert "Revert "Implement getifaddrs(3)/freeifaddrs(3).""
This reverts commit 76814a8250.

This differs from the original in fixing the GCC -Werror build:

  bionic/libc/bionic/ifaddrs.cpp: In function 'void __handle_netlink_response(ifaddrs**, nlmsghdr*)':
  bionic/libc/bionic/ifaddrs.cpp:113:62: error: use of old-style cast [-Werror=old-style-cast]
       ifinfomsg* ifi = reinterpret_cast<ifinfomsg*>(NLMSG_DATA(hdr));

This appears to be a GCC bug; the GCC command-line correctly uses -isystem,
and manually adding #pragma GCC system_header doesn't help. So just turn the
warning off for GCC for now. We won't need to worry about building with GCC
soon anyway.

Bug: http://b/26238832
Change-Id: I01615bd335edf11baf487b1c83a9157cd780f4a1
2016-01-04 13:00:39 -08:00
Yi Kong
76814a8250 Revert "Implement getifaddrs(3)/freeifaddrs(3)."
Werror build broken. Revert while working on a fix.

This reverts commit 0945ed5cc5.

Change-Id: I67edab7a7a3b9aa673ce9d14aa95380f947838a1
2015-12-22 17:47:54 +00:00
Elliott Hughes
0945ed5cc5 Implement getifaddrs(3)/freeifaddrs(3).
Time to dust off the old libcore implementation from gingerbread and add it
to bionic. Unlike the original, this actually looks at both RTM_NEWLINK and
RTM_NEWADDR.

Bug: http://b/26238832
Change-Id: I7bb4b432deb766065b66b9c9ff36ed68249aba82
2015-12-19 14:49:09 -08:00
Dimitry Ivanov
bc2e88a85d Revert "Revert "Remove remaining ndk_cruft from LP64 platforms""
This reverts commit 23af25b747.

Bug: http://b/26164862
Change-Id: I201bf49530f33f8ba6a1a35b79723afb9e84c7a5
2015-12-16 19:02:04 +00:00
Dimitry Ivanov
23af25b747 Revert "Remove remaining ndk_cruft from LP64 platforms"
This reverts commit b1d0a2ae77.

Change-Id: I1da06be0b78a4f2a4cad7e4a19a3ee755f55a813
2015-12-15 01:34:14 +00:00
Dimitry Ivanov
b1d0a2ae77 Remove remaining ndk_cruft from LP64 platforms
This change removes endpwent, dlmalloc_inspect_all, dlmalloc_trim
from lp64 libc.so. It also removed necessety of having brillo
version scripts for lp64 platforms.

Bug: http://b/26164862
Change-Id: I4e9b38907bb1dc410f0eb6d2f5d5944fe713da51
2015-12-14 15:49:28 -08:00
Dimitry Ivanov
585e959849 Generate libc version-script for brillo
Brillo doesn't use the ndk cruft, so we need
separate set of version scripts. Added new "nobrillo"
tag to mark such symbols in *.map.txt files.

Bug: http://b/26164862
Change-Id: Iaee1b7119f75b68c2971679fc32817e6df29fd94
2015-12-14 14:23:06 -08:00
Dimitry Ivanov
a3dd076126 Revert "Don't verify version scripts on 32-bit Brillo"
This reverts commit 31951b7f0d.

Bug: http://b/26164862
2015-12-14 14:19:53 -08:00
Dan Willemsen
31951b7f0d Don't verify version scripts on 32-bit Brillo
Brillo doesn't use the ndk cruft, so the same version scripts do not
apply. Until we have brillo-specific version scripts, just disable the
version script check.

Bug: 26164862
Change-Id: I682860ec1c5b36014c7a6cf24da43df553e9dc9f
2015-12-11 16:52:08 -08:00
Elliott Hughes
6c54ddd20f Fix -fstack-protector-strong for x86.
We need to ensure %gs:20 is set up early enough for -fstack-protector-strong
on x86, and that __set_tls doesn't get stack protector checks because it's a
prerequisite for them. x86 devices/emulators won't boot without this.

Bug: http://b/26073874
Change-Id: Icf0d34294648cc0c8cb406a3617befe0d45c525a
2015-12-08 12:48:42 -08:00
Dan Willemsen
b9055518fc Re-add putw for LP32
This was missed when switching to LOCAL_SRC_FILES_EXCLUDE

Change-Id: I6ea23c9eb31abe11e0ec4abfc2ee2f2a43c76ce2
2015-12-02 17:31:32 -08:00
Yabin Cui
9b687dc243 Enable using clang to build __cxa_thread_atexit_impl.
Remove previous workaround as we no longer use
__thread in __cxa_thread_atexit_impl.cpp.

Change-Id: Ic1062995db488859b341acdda0b5f6635e10d7e8
2015-11-30 14:43:52 -08:00