Reduce the amount of time that a process remains paused by pausing its
threads, fetching their registers, and then performing unwinding on a
copy of its address space. This also works around a kernel change
that's in 4.9 that prevents ptrace from reading memory of processes
that we don't have immediate permissions to ptrace (even if we
previously ptraced them).
Bug: http://b/62112103
Bug: http://b/63989615
Test: treehugger
Change-Id: I7b9cc5dd8f54a354bc61f1bda0d2b7a8a55733c4
This is to help debugging different offline unwiding failures.
Bug: http://b/69383534
Test: run backtrace_test.
Change-Id: I5ed4837027a9f17d032925e97e9f5927161444b3
- Add a load_bias field in MapInfo so that it can be loaded offline,
and also so it can be cached.
- Add an Add function to the Maps class so that it's possible to manually
create a map.
- Remove the OfflineMaps class since I haven't found a reason for this to
exist.
- Add a pointer to the gnu debugdata compressed section in the interface
itself and modify the step path to try eh_frame, then debug_frame, then
gnu_debugdata. This way arm can add exidx as the last step behind
gnu_debugdata. Add an offline test to verify the order of unwind.
- Fix x86_64_ucontext_t since it was a different size on 32 bit and 64 bit
systems.
Test: Pass new unit tests.
Change-Id: I978b70d6c244bd307c62a29886d24c1a8cb2af23
The checksum is unnecessary. Improves adb performance by 40% on USB2.
Test: new adb works with new + old adbd, old adb works with new adbd
bug 67327728
Change-Id: I761d8a5a62deaea9bbb092ea9926b2d6d312f00d
Paths for extended VNDK libs don't need version suffix, because there
always is the single version that the vendor(odm) modules are built
against.
Bug: 70601582
Test: walleye boots to the UI.
Test: No further test is possible since we don't have extended VNDK yet
in our source tree.
Change-Id: Idbf4bb820ddb136d00744f64ddf6ebe6442ad16e
Re-format the files by splitting lines using +=.
Also add /odm/${LIB} where needed.
A few directories that are no longer required are removed from the
search paths and permitted paths.
Test: walleye and sailfish boots to the UI, renderscript, camera,
camcodder, sound, etc. are working.
Change-Id: I3150f0c3d35130d6b1a665e3f0813d33b1b7f546
Current syntax of the fstab in device tree (fstab_dt) assumes the
node name is the mount point, which doesn't allow subdir:
vendor { <== using "vendor/abc" leads to syntax error in device tree
compatible = "android,vendor";
dev = "/dev/block/platform/soc.0/f9824900.sdhci/by-name/vendor";
type = "ext4";
mnt_flags = "ro,barrier=1,inode_readahead_blks=8";
fsmgr_flags = "wait";
};
This CL adds a new field "mnt_point" in the fstab_dt configuration:
vendor_abc {
compatible = "android,vendor_abc";
dev = "/dev/block/platform/soc.0/f9824900.sdhci/by-name/abc";
type = "ext4";
mnt_flags = "ro,barrier=1,inode_readahead_blks=8";
mnt_point = "/vendor/abc"; <== new field
fsmgr_flags = "wait";
};
The new field is optional and will fallback to using node name as mount
point if it is absent.
Note that this CL also sorts fstab_dt by mount point, because
/vendor needs to be mounted first, which contains a directory
/vendor/abc, before /vendor/abc can be mounted.
Bug: 69955336
Test: first stage mount /vendor/abc on a device
Change-Id: Ie2e519f9801f211a7a221622f32c82bedd00353f
Currently, we only check if the name of a given node in the trie is a
prefix match and the prefix matches array of the final node. This is
incorrect however, as the prefix matches array of intermediate nodes
may contain the prefix for a given property. This change adds that
check and test cases for this case.
Bug: 36001741
Test: new unit tests
Change-Id: I9f58ebc559f2ac591aa44df9e71205704bf18f66
The interface lib has been in VNDK-SP because
android.hardware.graphics.mapper@1.0 was using it. However, since the
dependency has gone [1], there is no need keep it in VNDK-SP. The
VNDK-SP set should be kept as small as possible because libs in VNDK-SP
are subject to double-loading.
[1] 79d13ff0f5
Bug: 69480083
Test: /system/lib64/vndk-sp/android.hardware.graphics.allocator@2.0.so
disappears.
Test: sailfish boots
Change-Id: I0e6518f169dd620d6b1a9ada47754e371ef4a739
Merged-In: I0e6518f169dd620d6b1a9ada47754e371ef4a739
(cherry picked from commit 9d898f3678)
Test to ensure that exact matches and prefix matches at the root level
work.
Test: these test cases
Change-Id: Idb296329c4c4f1bb1ba336b5cb12d5761239fbf8
If PLATFORM_VNDK_VERSION is set to a version other than "current",
add the version to the file names of the namespace configuration
files.
Bug: 69883025
Test: device boot
Change-Id: I27377549581125b6c750c1422d0ee4a607dda5e8
When ro.vndk.version has a specific VNDK version in it, use the
llndk.libraries.txt and vndksp.libraries.txt files with the version
suffix in the file names.
If ro.vndk.version is "current" or not set, the version suffix will
not be added.
This is to use a proper VNDK snapshot version configuration for a
vendor patition.
Bug: 69531793
Test: In system/etc directory of a Pixel2 device,
Change llndk.libraries.txt to llndk.libraries.27.txt
Change vndksp.libraries.txt to vndksp.libraries.27.txt
Set ro.vndk.version to 27 in vendor/default.prop
reboot and check if vendor apks work.
Change-Id: I82d83b6805799ea71cc88d1e0297d265a40c0061
This CL fixes an error with the asan permitted paths in
ld.config.txt.in.
Bug: 63927538
Test: lunch walleye_asan-userdebug && m -j40
Change-Id: Ica0504cb52ef6e6b3e4ce2deae3ce5984e38cc93
Instead of requiring each process to parse the property contexts files
in libc initialization, this change has property_service parse these
files one into a serialized trie, which the property code in libc can
then directly interpret for mapping property names to their associated
SELinux context.
Bug: 36001741
Test: boot bullhead, walleye, run unit tests
Change-Id: If67073d56e800b3ca667fb5322e6b993e7d810f6
Currently, whenever a new program starts, libc initializes two data
structures related to properties from the raw property_context files.
There are two problems here,
1) This takes roughly 1.2ms on a trivial program to generate contents
that could otherwise be cached.
2) One of the data structures is a descending list of prefixes, each
of which needs to be checked, whereas a trie would be more
efficient.
This change introduces two libraries,
1) libpropertycontextserializer meant to be used by property_service
to create a serialized trie containing all of the property
contexts.
2) libpropertycontextparser meant to be used by libc's property
functions to parse this serialized trie during property lookup.
This new trie also contains the ability to have exact matches instead
of prefix matches for properties, which was not possible before.
Bug: 36001741
Change-Id: I42324f04c4d995a0e055e9685d79f40393dfca51
Elliott Hughes