Commit graph

30 commits

Author SHA1 Message Date
Elliott Hughes
cbc80ba9d8 Switch the rest of our internal headers to #pragma once.
We've been using #pragma once for new internal files, but let's be more bold.

Bug: N/A
Test: builds
Change-Id: I7e2ee2730043bd884f9571cdbd8b524043030c07
2018-02-13 14:27:17 -08:00
Christopher Ferris
7a3681e5b6 Move libc_log code into libasync_safe.
This library is used by a number of different libraries in the system.
Make it easy for platform libraries to use this library and create
an actual exported include file.

Change the names of the functions to reflect the new name of the library.

Run clang_format on the async_safe_log.cpp file since the formatting is
all over the place.

Bug: 31919199

Test: Compiled for angler/bullhead, and booted.
Test: Ran bionic unit tests.
Test: Ran the malloc debug tests.
Change-Id: I8071bf690c17b0ea3bc8dc5749cdd5b6ad58478a
2017-05-03 08:50:43 -07:00
Dimitry Ivanov
6391e1a44d libc: __system_property_set uses writev to write atomically
__system_property_set sometimes produces broken_pipe error
when trying to write a property.

This change improves error messages and uses writev() instead
of sequence of send() calls.

Bug: http://b/35381074
Test: bionic-unit-tests --gtest_filter=prop*
Change-Id: I7a5b169c015db4e6b720370e58662de8206d1086
2017-02-24 14:00:04 -08:00
Dimitry Ivanov
e78deef364 linker: implement shared namespaces
Shared namespaces clone the list of loaded native
libraries from the caller namespace. This allows
classloaders for bundled apps to share already loaded
libraries with default namespace.

Bug: http://b/22548808
Bug: http://b/26165097
Change-Id: I8949d45937fdb38e1f586ff0679003adac0d9dad
2015-12-17 13:41:10 -08:00
Dmitriy Ivanov
cf1cbbe432 refactoring: introduce MappedFileFragment
Change-Id: I97b0c1131711ed0ac13ab33e3357e99e0b6b1a4e
2015-10-22 18:01:56 -07:00
Elliott Hughes
dd57029ed1 Simplify three copyright headers.
There's no reason to have multiple years in our own copyright headers,
and given the stupidity of our NOTICE file generation, it just creates
more junk.

Change-Id: I065a3811c2e2584e3b649a18ad9460286bc72b92
(cherry picked from commit c69ace87ec)
2015-05-12 10:34:22 -07:00
Dmitriy Ivanov
114ff69f17 Refactoring: move mips reloc to separate method
Change-Id: I712614853e3f0e515f5c2bdd8f0aaa5feeae8e55
2015-01-14 18:03:19 -08:00
Brigid Smith
c5a13efa9b Added test for ifunc support in dynamic linker.
ifuncs now work in i386 and x86_64 when called in the same library as
well as in a different library.

Bug:6657325
Change-Id: Ic0c48b1b0a76cb90f36c20c79f68294cc3fd44a1
2014-08-08 11:29:35 -07:00
Elliott Hughes
1728b23965 Switch to g_ for globals.
That's what the Google style guide recommends, and we're starting
to get a mix.

Change-Id: Ib0c53a890bb5deed5c679e887541a715faea91fc
2014-05-14 10:02:03 -07:00
Elliott Hughes
faf05bacd4 Clean up all the lint cpplint can find in the dynamic linker.
Change-Id: Ic9ee7153817c22a252cc4b309283e355b623cab9
2014-02-11 17:33:49 -08:00
Elliott Hughes
0f395b7ba0 Make logging fall back to /dev/stderr if we're on the host.
Otherwise you get no logging, which sucks.

Change-Id: Iea1e8f996461afbb217a55711b7967005c39cfcb
2013-10-08 13:19:00 -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
Elliott Hughes
ca0c11bd82 Use more types than just 'unsigned' in the linker.
Still chipping away at the situation where every variable in the
linker was of type 'unsigned'. This patch switches counts over to
being size_t and adds an explicit type for init/fini function pointers
and arrays of function pointers.

Also improve logging from CallArray.

Also remove trailing "\n"s from log messages.

Change-Id: Ie036d2622caac50f4d29f0570888bb527661d77e
2013-03-12 11:26:56 -07:00
Elliott Hughes
0493a6f7be Regenerate NOTICE files.
Also clean up some obsolete cruft.

Change-Id: Iec3b36f6607f7a08b72de99294ed5b6cd910dd5f
2013-03-07 11:51:10 -08:00
Elliott Hughes
650be4e584 More linker cleanup.
Change-Id: I9fb3c7c0d4b4ffef0eeaf092d4e30ffe63a08671
2013-03-05 22:24:34 -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
Elliott Hughes
9c94fc9fbe Tone down some of the overly-verbose linker logging.
We don't need to see every dlopen(3)/dlsym(3) failure unless LD_DEBUG is on.

Change-Id: I1edfe8b72f32ff54dd30e1acf32e20d470d5e9f7
2012-11-05 09:11:43 -08:00
Elliott Hughes
61a9ccb41e Make dynamic linker debugging always available.
If you need to build your own linker to get debugging, the debugging
is never available when you need it.

Change-Id: I5ff7e55753459d49a2990f25d9aa155e0b8602e0
2012-11-02 13:46:23 -07:00
Elliott Hughes
18a206c81d More dynamic linker cleanup.
I still want to break linker_format out into its own library so we can reuse
it for malloc debugging and so forth. (There are many similar pieces of code
in bionic, but the linker's one seems to be the most complete/functional.)

Change-Id: If3721853d28937c8e821ca1d23cf200e228a409a
2012-10-30 16:35:38 -07:00
Nick Kralevich
3697b52605 Allow linker to compile with -DLINKER_DEBUG=1
Change-Id: I27e734048cbcb9ed936369115582b3c734de1280
2012-08-24 17:11:45 -07:00
Elliott Hughes
bedfe38b8b More cleanup.
Make more stuff static, remove some dead code, and fix a few typos.

Change-Id: I010b0eadeaf61e2899c37014ad1e7082c70bd510
2012-08-14 14:07:59 -07:00
David 'Digit' Turner
5c734644ee Fix debug output in the dynamic linker.
This provides a mini-printf implementation that reduces the
size of the dynamic linker by 25 KB, by preventing the drag of
formatting-related routines from the C library.

Also allow traces to be sent to the log, instead of stdout.

NOTE: You now need to modify Android.mk to enable/disable debug
      output.
2010-02-11 10:46:48 -08:00
Dima Zavin
2e85579c34 linker: Make the errors reported by dlopen/dlsym be more useful.
Changed it so that when the linker generates error messages, they are
scribbled away into a buffer that dlfcn and friends can read from.

Since the error messages are generetad with snprintf, and snprintf
MAY call malloc during some code paths, we now link against a version
of libc that does not contain malloc/free/realloc/calloc. We then define
malloc and friends in the dynamic loader, and make them abort() if they
are ever called.

Signed-off-by: Dima Zavin <dima@android.com>
2009-05-27 20:16:19 -07:00
The Android Open Source Project
1dc9e472e1 auto import from //depot/cupcake/@135843 2009-03-03 19:28:35 -08:00
The Android Open Source Project
1767f908af auto import from //depot/cupcake/@135843 2009-03-03 18:28:13 -08:00
The Android Open Source Project
a799b53f10 auto import from //depot/cupcake/@132589 2009-03-03 14:03:51 -08:00
The Android Open Source Project
fe5745033a auto import from //depot/cupcake/@137055 2009-03-02 22:54:14 -08:00
The Android Open Source Project
9f65adf2ba auto import from //branches/cupcake/...@130745 2009-02-10 15:43:56 -08:00
The Android Open Source Project
4e468ed2eb Code drop from //branches/cupcake/...@124589 2008-12-17 18:03:48 -08:00
The Android Open Source Project
a27d2baa0c Initial Contribution 2008-10-21 07:00:00 -07:00