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12 Commits

Author SHA1 Message Date
Dimitry Ivanov 7d429d3c48 Replace public library list with shared lib sonames (part 1/2) 
Replace public library list with shared lib sonames
which are property of a link between namespaces

This change does not touch any external interfaces
so from outside it behaves almost as it was before

One significant difference is that there is no longer
need to preload public libraries.

Bug: http://b/26833548
Test: bionic-unit-tests --gtest_filter=dl*:Dl*
Change-Id: I57e44e18a9b4f07dcd6556436346be52f52b79d7
 2017-02-09 23:26:44 -08:00
Dan Albert 95e2e6f620 Exit failure if trying to load non-PIE. 
Amazingly this was actually breaking the NDK's ability to build
libstdc++ for x86.

Test: mma
Bug: None
Change-Id: Iafa55c31fdeb35caca7d7d7a39a3e7afa0713557
 2017-01-31 16:02:43 -08:00
Evgenii Stepanov 082bec5b41 Merge "Runtime support for CFI" 2017-01-18 23:39:08 +00:00
Evgenii Stepanov 0a3637d3eb Runtime support for CFI 
Control Flow Integrity support in bionic.

General design:
http://clang.llvm.org/docs/ControlFlowIntegrityDesign.html#shared-library-support

This CL implements subsections "CFI Shadow" and "CFI_SlowPath" in the above document.

Bug: 22033465
Test: bionic device tests
Change-Id: I14dfea630de468eb5620e7f55f92b1397ba06217
 2017-01-18 13:13:52 -08:00
Josh Gao 2a3b4fa6ec Rename libdebuggerd_client to libdebuggerd_handler. 
Bug: http://b/30705528
Test: debuggerd_test
Change-Id: I625a9a2e7304d172873ba9344b74efa57ad7bdad
 2017-01-17 15:11:46 -08:00
Elliott Hughes 607d307b1f Dynamic linker errors should go to stderr. 
Also add the missing \n to the end of the error.

Addresses review comment.

Bug: N/A
Test: manual
Change-Id: I7c997a71e6e02381d21ac762595ba90370db9d05
 2017-01-09 14:44:28 -08:00
Elliott Hughes 3bdb31b51b Exit rather than abort if asked to run a non-PIE executable. 
Each release we're asked to investigate tombstones from code that hasn't
been allowed to run on Android since L. This is just wasting our time,
and clearly the "obviousness" of aborting rather than exiting hasn't ensured
that all app developers rebuild their old binaries. In some cases it seems
like they run them "just in case" and don't care if they fail.

Bug: http://b/34112178
Test: ran libsupervisor.so from com.ss.android.article.news
Change-Id: I8a3f196c4755601a3888281566fbb7b817f01dca
 2017-01-07 10:38:20 -08:00
Dimitry Ivanov d9e427cf41 Bionic loader is no longer hijacking libdl.so 
Do not hijack libdl.so methods but make libdl proxy calls to
loader instead. This will be replaces by calls to libc.so
once loader functionality is migrated.

Also add a lock to dl_unwind_find_exidx function call.

Test: bionic-unit-tests --gtest_filter=dl*:Dl*
Bug: http://b/27106625
Change-Id: Ic33a7109a86f4262798d63a35f4c61d15b0068bb
 2016-12-09 14:53:59 -08:00
Andreas Gampe dcb846cb49 Revert "Bionic loader is no longer hijacking libdl.so" 
This reverts commit c12acef96b.

Breaks the Mips build.

Bug: 27106625
Change-Id: I27edb7114065c36e1b618e387530d58189cdb184
 2016-12-06 02:10:13 +00:00
Dimitry Ivanov c12acef96b Bionic loader is no longer hijacking libdl.so 
Do not hijack libdl.so methods but make libdl proxy calls to
loader instead. This will be replaces by calls to libc.so
once loader functionality is migrated.

Also add a lock to dl_unwind_find_exidx function call.

Test: bionic-unit-tests --gtest_filter=dl*:Dl*
Bug: http://b/27106625
Change-Id: I9e666e771e4bbca52151cfa7fc4c8677e1480818
 2016-12-05 11:19:19 -08:00
Dan Willemsen 7ec52b12ef Enable libc/libdl/libm/linker for host bionic 
Disables debuggerd integration unless building for android.

Bug: 31559095
Test: Diff out/soong/build.ninja before/after, only change is moving
      linker's libdebuggerd_client static lib to the beginning of the
      list.
Test: lunch aosp_arm64-eng; mmma -j bionic
Change-Id: I62e725f7a9b98b7fe31637d0a835fd5846b0aff0
 2016-11-29 21:09:05 +00:00
Dimitry Ivanov 3f66057544 linker: Refactoring step 3 of many 
Extract linker executable specific code to linker_main.cpp;
this part of code does not have a place in libdl.a/so.

Bug: http://b/14998480
Bug: http://b/30706810
Test: mm && run bionic-unit-tests
Change-Id: I90f7475e93a919b0f9525da22928089ad35b8f6c
 2016-09-13 13:38:58 -07:00