Commit Graph

6 Commits

Author SHA1 Message Date
Jiyong Park 02586a2a34 linker: the global group is added to all built-in namespaces
With ld.config.txt, we now have multiple built-in namespaces other than
the default namespace. Libs (and their dependents) listed in LD_PRELOAD
must be visible to those additional namespaces as well.

This also adds a debugging only feature: path to the linker config file
can be customized via LD_CONFIG_FILE environment variable. This works
only for debuggable builds.

Bug: 38114603
Bug: 62815515
Test: 1. ./external/compiler-rt/lib/asan/scripts/asan_device_setup --lib
prebuilts/clang/host/linux-x86/clang-stable/lib64/clang/5.0/lib/linux
2. enable talkback shortcut
3. in the home screen, hold vol-up/down together
4. device does not reboots and talkback shortcut is toggled
Test: bionic-unit-tests and linker-unit-tests successful

Change-Id: I9a03591053f4a9caea82f0dcb23e7a3d324bb9bd
2017-08-03 01:02:07 +09:00
Elliott Hughes eb04ed506f Fix x86 system calls made from ELF preinit.
Used by CFI, so broke cfi_test#early_init@x86, but I've added a specific
test for this (and a similar test for getauxval from preinit, which this
patch does not fix).

Bug: http://b/35885875
Test: ran tests
Change-Id: I43885bedfb88c0a26b4474bd3c27a87dec7bbc97
2017-03-29 13:48:02 -07:00
Dimitry Ivanov 2a6955e040 loader: set PT_INTERP to itself
Some versions of kernel set AT_BASE to 0
if dynamic loader does not have PT_INTERP
set.

Bug: http://b/30739481
Test: run /system/bin/linker64 and /system/bin/linker
Change-Id: I1b67777166fe917d3ee1a97277045ca6f5db0084
2017-02-24 16:56:38 -08:00
Dmitriy Ivanov 0416d88f9c Revert "Revert "Fix symbol lookup order during relocation""
This reverts commit f947be2889.
2014-11-04 09:38:18 -08:00
Dmitriy Ivanov f947be2889 Revert "Fix symbol lookup order during relocation"
This reverts commit 976402cca1.

Bug: 18222321
Bug: 18211780
Change-Id: Iafdd3d843db7b1cf288be9a0232022816622c944
2014-11-03 22:15:08 -08:00
Dmitriy Ivanov 976402cca1 Fix symbol lookup order during relocation
Relocate symbol against DF_1_GLOBAL shared libraries
  loaded before this shared library. This includes
  main executable, ld_preloads and other libraries
  that have DF_1_GLOBAL flag set.

Bug: 2643900
Bug: 15432753
Bug: 18186310

(cherry picked from commit d225a5e652)

Change-Id: I4e889cdf2dfbf8230b0790053d311ee6b0d0ee2d
2014-10-31 17:10:30 -07:00