We're still copy & pasting this workaround about, but the bug was supposedly fixed years ago!
Bug: http://b/34945607
Bug: http://b/33942619
Bug: http://b/34195559
Change-Id: Icf3d184d2ddb447dff7dacccea1dc903da816505
Use cc_genrules to create the dlext test zips needed by the bionic
tests. The genrules aren't visible to Make, and so don't work with
the `required` property. Move all of the dependencies to `data_bins`,
`data_libs` or `data` for helper binaries, shared libraries or
genrule zip files respectively. The `data*` properties copy the
files into the same directory as a test, respecting the
`bionic-loader-test-libs` relative path specified by each, but
does not put each helper binary in its own subdirectory, so update
the paths in each of the tests.
Bug: 200872604
Test: atest CtsBionicTestCases
Test: atest bionic-unit-tests
Test: cts-tradefed run commandAndExit cts -m CtsBionicTestCases
Test: adb push $OUT/data/nativetest/bionic-unit-tests /data/nativetest/ && adb shell /data/nativetest/bionic-unit-tests/bionic-unit-tests
Change-Id: Ic4257cb4104ff558326df2363730acd20464b051
The LD_CONFIG_FILE test needs to match how Bionic was compiled, and
Bionic only enables LD_CONFIG_FILE for debug builds (i.e. ro.build.type
is "user"). ro.debuggable can be forced on without recompiling Bionic.
Bug: http://b/140324381
Bug: http://b/189422994
Test: bionic unit tests
Change-Id: I139059a7f94d15a5447dab292927606a6bcc48ef
During "step 1" of find_libraries, the linker finds the transitive
closure of dependencies, in BFS order. As it finds each library, it
adds the library to its primary namespace (so that, if some other
library also depends on it, find_loaded_library_by_soname can find the
library in the process of being loaded).
LD_PRELOAD libraries are automatically marked DF_1_GLOBAL, and any
DF_1_GLOBAL library is added to every linker namespace. Previously,
this secondary namespace registration happened after step 1. The result
is that across different namespaces, the order of libraries could vary.
In general, a namespace's primary members will all appear before
secondary members. This is undesirable for libsigchain.so, which we
want to have appear before any other non-preloaded library.
Instead, when an soinfo is added to its primary namespace, immediately
add it to all the other namespaces, too. This ensures that the order of
soinfo objects is the same across namespaces.
Expand the dl.exec_with_ld_config_file_with_ld_preload and
dl.exec_with_ld_config_file tests to cover the new behavior. Mark
lib1.so DF_1_GLOBAL and use a "foo" symbol to mimic the behavior of a
signal API interposed by (e.g.) libsigchain.so and a ASAN preload.
Test: bionic unit tests
Bug: http://b/143219447
Change-Id: I9fd90f6f0d14caf1aca6d414b3e9aab77deca3ff
The mips/mips64 targets were never able to pass these tests, and the
supported architectures don't need any of these workarounds.
Test: treehugger
Change-Id: I640a8b7a98ae13d9d9cdb09b0fbef61d31d4c79a
Test (a) that we can load the library, but also (b) that readelf thinks
it contains the relocation encoding we were expecting. Do this for all
four of RELR, ANDROID_RELR, relocation packer, and the original ELF
relocation encoding.
Bug: http://b/147452927
Test: treehugger
Change-Id: I5fab72f99d46991c1b206a1c15c76e185b7148b3
setprogname() does a basename, but we were initializing __progname
directly. Stop doing that, and add some tests.
Test: treehugger
Change-Id: I06f306ade4161b2f0c7e314a3b1b30c9420117b7
dl#exec_linker* tests are failing on devices with emulated
architecture due to hardcoded path to linker.
Test: bionic-unit-tests --gtest_filter=dl.exec_linker*
Bug: b/141914915
Change-Id: Id6d8d3ee7114e70b07e44034aa62dce0a3e0760e
Signed-off-by: Dmytro Chystiakov <dmytro.chystiakov@intel.com>
This change makes it easier to diagnose mistakes in linker
configuration that result in a library being accidentally loaded in
multiple namespaces without its dependencies available everywhere.
Test: manually tested the error message
Test: bionic-unit-tests
Change-Id: I03a20507f8fc902c2445a7fbbf59767ffffd5ebf
The tests were patched earlier to run with tagging heap allocator.
This change enables hwasan code instrumentation in the tests themselves,
and fixes the issues that arise, mainly in the code that:
* compares addresses of unrelated stack variables
* compares address of a stack variable with stack limits as found in
/proc/self/maps
* writes address of a stack variable to a hardware watchpoint register
etc.
Note that static tests are broken at the moment, like all static
binaries. Dynamic tests pass 100% with this change.
Bug: 114279110, 124007027
Test: SANITIZE_TARGET=hwaddress; run dynamic bionic tests
Change-Id: I68b8df9dd3e30b47734ddc083811a75a7f27deaa
Make getauxval() work in .preinit_array. It still won't be usable for
ifuncs unless we can guarantee that the __loader_shared_globals relocation
is resolved before the ifunc calls [__bionic_]getauxval.
Define __bionic_getauxval for use in replacing calls to
KernelArgumentBlock::getauxval, which doesn't (and sometimes isn't allowed
to) access TLS variables like errno.
Bug: http://b/25751302
Test: bionic unit tests
Change-Id: I461feeaed7f43cfa2a2b6c34147194f0df82b516
Merged-In: I461feeaed7f43cfa2a2b6c34147194f0df82b516
(cherry picked from commit bdab4a2b97)
Initialize the __progname and environ global variables using
libc_shared_globals rather than KernelArgumentBlock.
Also: suppose the linker is invoked on an executable:
linker prog [args...]
The first argument passed to main() and constructor functions is "prog"
rather than "linker". For consistency, this CL changes the BSD
__progname global from "linker" to "prog".
Bug: none
Test: bionic unit tests
Change-Id: I376d76953c9436706dbc53911ef6585c1acc1c31
* HWASan report invalid use of the allocator api (like alignment not
being power of two, or allocation size too large) in a way tests do not
expect.
* Code in .preinit_array runs before HWASan shadow is initialized and
needs to be excluded from instrumentation.
* It looks that mm system calls (mmap/mprotect/etc) will not allow
tagged pointers. In fact, the use of mprotect on malloc()ed memory is
doubtful - one can imagine some kind of speculative load from such
memory, as compiler knows that it is addressable.
Bug: 114279110
Test: bionic-unit-tests with hwasan
Change-Id: I6ba4b46a0d554de77c923ad134cf156ce4ddba1b
The executable can be inside a zip file using the same syntax used for
shared objects: path.zip!/libentry.so.
The linker currently requires an absolute path. This restriction could be
loosened, but it didn't seem important? If it allowed non-absolute paths,
we'd need to decide how to handle:
- foo/bar (relative to CWD?)
- foo (search PATH / LD_LIBRARY_PATH, or also relative to CWD?)
- foo.zip!/bar (normalize_path() requires an absolute path)
The linker adjusts the argc/argv passed to main() and to constructor
functions to hide the initial linker argument, but doesn't adjust the auxv
vector or files like /proc/self/{exe,cmdline,auxv,stat}. Those files will
report that the kernel loaded the linker as an executable.
I think the linker_logger.cpp change guarding against (g_argv == NULL)
isn't actually necessary, but it seemed like a good idea given that I'm
delaying initialization of g_argv until after C++ constructors have run.
Bug: http://b/112050209
Test: bionic unit tests
Change-Id: I846faf98b16fd34218946f6167e8b451897debe5
Use a global gtest isolation runner rather than the custom one in
bionic.
Test: Ran all unit tests and verified same behavior before and after.
Change-Id: I24a7cf17cf8e018d0f51969c64b53ce9059cc779
Default search path may be different for native bridged enviroments
Bug: http://b/73105445
Test: adb shell /data/nativetest/arm/bionic-unit-tests/bionic-unit-tests --gtest_filter=dl.exec_with_ld_config_file
Change-Id: I09d32dcb8a7a3f161ccc6d58c29252e79ea5fd3e
The tests can run in parallel, and if they do, one test can truncate
ld.config.txt while another test is reading it (via the loader). Fix the
issue by using a TemporaryFile as the LD_CONFIG_FILE.
Test: adb shell /data/nativetest64/bionic-unit-tests/bionic-unit-tests --gtest_filter=dl.exec_with_ld_config_file:dl.exec_with_ld_config_file_with_ld_preload:dl.disable_ld_config_file --gtest_repeat=1000
Bug: b/77555708
Change-Id: I9763caa076ece30d1a0eb9c8892a310ac51543b6
(cherry picked from commit 6c3f97d236)
The tests that use LD_CONFIG_FILE environment variable shouldn't be run
on non-production devices because LD_CONFIG_FILE is only for debuggable
builds. We have used the build-time flag USE_LD_CONFIG_FILE, which is
set for the debuggable builds, to conditionally include or exclude the
tests. However, this can be a problem when 1) the device is not
debuggable but 2) the CTS itself is built with debuggable target. So,
instead of relying on the build-time flag USE_LD_CONFIG_FILE, the tests
now check the debuggability of the device and skip the tests when it
isn't debuggable.
Bug: 65842135
Test: 1) flash user build image to a 2017 pixel device.
2) build cts with 'userdebug' build target
3) CtsBionicTestCases pass on the device
(cherrypick of 5e3d44100be32fd5efffd0c309bd90c04cc9620c.)
Change-Id: Ib88e3b26d093e5479d52cd87db47dee5e108cac2
The test always fails when run on non-production devices. Silence the
expected failure.
Bug: 64908138
Test: run CtsBionicTestCases on userdebug device. disable_ld_config_file
test does not fail.
Merged-In: Icd24a356dfbc62f540e3263070434a4fd065bfbc
Change-Id: Icd24a356dfbc62f540e3263070434a4fd065bfbc
(cherry picked from commit 157655dc67)
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
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
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
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
