Commit graph

11 commits

Author SHA1 Message Date
Peter Collingbourne
2659d7b6c2 Add some slack at the end of large allocations when target SDK level < S.
This works around buggy applications that read a few bytes past the
end of their allocation, which would otherwise cause a segfault with
the concurrent Scudo change that aligns large allocations to the right.

Because the implementation of
android_set_application_target_sdk_version() lives in the linker,
we need to introduce a hook so that libc is notified when the target
SDK version changes.

Bug: 181344545
Change-Id: Id4be6645b94fad3f64ae48afd16c0154f1de448f
2021-03-05 14:29:17 -08:00
Josh Gao
6a51013728 Reland "fdsan: make fatal by default."
The two tests known to be failing (installd_dexopt_test and BpfMapTest)
have been fixed, so let's try this again.

This reverts commit 76351e3e3f.

Bug: http://b/137788030
Bug: http://b/139092341
Bug: http://b/139175951
Test: treehugger
2019-08-20 17:59:14 -07:00
Pete Gillin
76351e3e3f Revert "fdsan: make fatal by default."
This reverts commit 66b5e3ca19.

Reason for revert: Causes installd_dexopt_test to fail. Presumably there is an existing issue which this change is turning into a hard fail, so that needs to be fixed before this can be rolled forwards. See b/139092341.

Bug: 139092341
Bug: 137788030
Change-Id: I1beccddff64c86541bc003b9b009f4046ec9cbf1
2019-08-09 11:18:39 +00:00
Josh Gao
66b5e3ca19 fdsan: make fatal by default.
Make fdsan fatal by default on native processes, and Java processes that
target R or later.

Bug: http://b/137788030
Test: manual
Change-Id: I5900efc606fc0d47b69223574ad7dca89afe4eda
2019-08-07 19:53:14 +00:00
Elliott Hughes
ff1428a48e Move API levels from uint32_t to int.
(cherrypick of a6c71a09670ca636cca5cfea9d74b03a951e2b5e.)

Bug: N/A
Test: builds
Change-Id: I9c414e30e3c4fe2a4e16a2fe4ce18eae85fe4844
2018-11-13 21:25:07 -08:00
Dimitry Ivanov
bcc4da9b75 Unify linker files under one license (BSD)
Historically we had part of the linker licensed under BSD and
another part under Apache 2 license. This commit makes all the
linker code licensed under BSD license.

Test: m
Change-Id: I11b8163ae75966b5768d3fe992679de376106515
2017-02-15 15:35:33 -08:00
Dmitriy Ivanov
28154f5c56 Improve library lookup logic
Linker tries to open a library even if it can
be found by soname. This only happens if the
library was previously opened under different
target sdk version.

Bug: http://b/21876587
Bug: http://b/21153477
Bug: http://b/21171302
Bug: https://code.google.com/p/android/issues/detail?id=160921
Change-Id: I7dbbcc3b49933bffd89ca0af55371e1a1f2bf4c2
2015-06-17 16:36:03 -07:00
Dimitry Ivanov
1eba2f4ce1 Revert "Improve library lookup logic"
This reverts commit ea4ef52fa4.

Bug: http://b/21876587
Bug: http://b/21153477
Bug: http://b/21171302
Bug: https://code.google.com/p/android/issues/detail?id=160921
Change-Id: I23ddbd69294023c56c9cbabad29d26c8f736ab43
2015-06-17 20:42:20 +00:00
Dmitriy Ivanov
ea4ef52fa4 Improve library lookup logic
Linker tries to open a library even if it can
be found by soname. This only happens if the
library was previously opened under different
target sdk version.

Bug: http://b/21876587
Bug: http://b/21153477
Bug: http://b/21171302
Bug: https://code.google.com/p/android/issues/detail?id=160921
Change-Id: I769a04b6b1368a107d43f399297be14050338bbc
2015-06-16 16:52:21 -07:00
Dmitriy Ivanov
04f7e3e955 Backward compatibility for dlsym(RTLD_DEFAULT, ...)
Do not skip RTLD_LOCAL libraries in dlsym(RTLD_DEFAULT, ...)
 if the library is opened by application with target api level <= 22

Bug: http://b/21565766
Bug: http://b/17512583
Change-Id: Ic45ed1e4f53e84cba9d74cab6b0049c0c7aa8423
2015-06-02 18:06:24 -07:00
Dmitriy Ivanov
d8ead18145 Add functions to provide target sdk version
Bug: http://b/21364029
Change-Id: I8648d1bff6c8fd6e7cd12da7f128e048b9f2829a
(cherry picked from commit 79fd668bb4)
2015-05-27 16:20:16 -07:00