This feature allows skipping a program or map based on the type of the
build. This allows things like userdebug-only programs.
Bug: 246985031
Test: added test program and watched it skipped on userdebug
Change-Id: I981e3447b40751926cbfd1692e13772ec582d3d4
This is a holdover from when libmeminfo depended on libbpf_android, a
dependency which has since been removed. Deleting it allows
libbpf_android to use libvintf, which will be used to identify a
device's kernel branch for BPF attach point enforcement.
Test: build
Change-Id: I73747e04c2a843652859e4fb753bd5afdedba1cd
Signed-off-by: Connor O'Brien <connoro@google.com>
Underscore character may cause bpf prog/map naming collision. For
example, x.o with map y_z and x_y.o with map z both result in x_y_z
prog/map name, which should be prevented during compile-time.
aosp/2147825 will prohibit underscore character in bpf source name
(source name derives the obj name). Existing bpf modules with underscore
characters in source name need to be updated accordingly.
Bug: 236706995
Test: atest libbpf_load_test
Change-Id: I037ccfedc4d2e48688ee47f575c73998ce1c2c4b
target just doesn't make sense any more,
since any user of the headers, which only declare lib provided functions,
also needs the library itself
Test: TreeHugger
Signed-off-by: Maciej Żenczykowski <maze@google.com>
Change-Id: I135972468771070b9eab57efe082271f174e8ab3
Now that libbpf_load_test's bpf programs can be pushed to device
automatically, add a TEST_MAPPING file running it in presubmit for
changes to the libbpf_android subdirectory.
Test: atest --test-mapping system/bpf
Bug: 203823368
Signed-off-by: Connor O'Brien <connoro@google.com>
Change-Id: Ieef1144e87f5ffdabc277c29ac66aae56c7b7420
atest appears not to know how to push dependencies listed with the
"required" property, but it will push "data" modules to the same
folder as the test itself. Update Android.bp to use data instead, and
change BpfLoadTest.cpp to reflect the new location of the test
programs.
Test: atest libbpf_load_test
Bug: 203823368
Signed-off-by: Connor O'Brien <connoro@google.com>
Change-Id: Iabec3662e2c03f4ab19e5cdce859e4238767519d
Add path to a test program with BTF info included to test bpfloader
handles both situations correctly
Test: libbpf_load_test
Bug: 203823368
Signed-off-by: Connor O'Brien <connoro@google.com>
Change-Id: Ibe63cdc2ee59199b687d4006efadb201d4a17f3c
bpf_create_map and bpf_prog_load have been renamed, so update those
calls. bcc now depends on upstream libbpf and has deleted its
redundant implementations of bpf_obj_pin and bpf_obj_get, so add
upstream libbpf as a dependency.
Test: m libbpf_android
Bug: 203823368
Signed-off-by: Connor O'Brien <connoro@google.com>
Change-Id: I324cab44227b0e2f73873f37a28d640ab2373204
This is to prevent a name collision with "upstream"
libbpf (external/libbpf) which is built using the same name.
Bug: 203823368
Test: build cuttlefish
Test: m libbpf_load_test
Signed-off-by: Connor O'Brien <connoro@google.com>
Change-Id: I9bb798a9b5d832511bed471f01575bba14a1a9d3
Move BPF map definition and utilities to a common place that easy to be
referenced from both mainline module and platform code.
Bug: 202086915
Test: m; flash; boot
Test: cd system/netd/ && atest
Test: cd packages/modules/Connectivity && atest
Test: m gpuservice_unittest libtimeinstate_test bpf_module_test
CtsAppOpsTestCases libbpf_load_test VtsBootconfigTest
vts_test_binary_bpf_module bpf_benchmark libbpf_load_test
libbpf_android_test
Change-Id: Ib15cf78c2da97bff835fb406c866676eec77c013
The test will be moved to frameworks/libs/net along with header files.
Bug: 202086915
Test: m
Merged-In: I1de9c1f443f8bf90ef341e4867866093e62f427d
Change-Id: I1de9c1f443f8bf90ef341e4867866093e62f427d
Functions in BpfUtils.cpp are trivial, they can be static inlined
in BpfUtils.h.
Bug: 202086915
Test: m; flash; boot; cd system/netd && atest
Test: m gpuservice_unittest libtimeinstate_test bpf_module_test
CtsAppOpsTestCases libmeminfo_test VtsBootconfigTest
vts_test_binary_bpf_module
Change-Id: Ie1ece23b6fc9a4db5fc95930209a10da1e528cb5
This will be used by the tethering module when running on S, so
it needs to have an sdk_version. Because this target does not
depend on anything, there is no need to change any other code.
Because this is only needed by the tethering module, which
shipped in R, pick the R SDK version, 30. That ensures we do not
need to support it on releases older than when it is needed.
Test: m
Bug: 173167302
Change-Id: I15c1e943d0c30aceebcb8288e78a5a8135ee7fd1
libmeminfo needs to use BPF to read GPU usage reported by kernel
drivers, therefore a new dependency between libmeminfo and
libbpf_android is added. After this addition, native_bridge_supported
is required to successfully build cuttlefish targets.
Bug: 171261987
Test: build libmeminfo accessing BPF map
Signed-off-by: Suren Baghdasaryan <surenb@google.com>
Change-Id: I12e0613b13fb1206e204b5e85b4ea9a4d33e0cc9
Remove libnetdutils dependency because bpf is being used for things other
than networking these days, and we don't want to make libnetdutils
vendor-available in the future. libbase provides an alternative type now.
Bug: 140330870
Test: atest libbpf_android_test netd_integration_test netd_unit_test
libnetdbpf_test bpf_module_test
Change-Id: I72ae8cd7f58a49bfc7dcb914a332a4c4bad5dea5
Note, this does not add libbpf_load_test as well because this test
requires adding a bpf program to the system image.
Bug: N/A
Test: `atest --test-mapping .`
Change-Id: I770ec4876e1cb93a526e99bcb5a234f964f46971
Creating a function for this rather than having people copy/paste a loop
there.
It's very intentional that there is no timeout here. If bpfloader is
down, there is a serious problem, and we shouldn't let code move forward
in a state where it may not have been tested.
Bug: 140330870
Test: boot & use bpf/netd
Change-Id: I358d1fcf77ad5406e294dd57307bc411e2c8ad6a
This reverts commit f0336cb586.
Reason for revert: breaks all camera use cases
Bug: 135568875
Exempt-From-Owner-Approval: revert, no build cop
Change-Id: Ie228b8dd167d4788c3cf570d0ff531e88a06a170
libprocessgroup symbols are being moved into libcutils in order to
optimize linking/memory usage. libprocessgroup will no longer be
required in the future (however removing references to it will come
separately).
Bug: 135145426
Test: boot
Change-Id: Ie268ddbdb5a8b2eb254c956c8262aed8405752fa
* Wrote a relocatable ELF loader from scratch. The loader library loads
all objects in /system/etc/bpf/, parses and fixes up eBPF instructions
based on relocation information, creates maps and programs and pins
them. A single API call without arguments is made which results in this
operation. The API has all the information it needs from the filesystem
and the ELF objects, so there is no configuration stored in the code
calling the loader API essentially making it zero conf. Initially this
will be used by time_in_state statistics collection using tracepoints.
In the future, netd's eBPF C code should be rewritten to use this
infrastructure and the old ELF loader can be gotten rid off. This is the
first step.
* Link libbpf with libbpf_android which will come from the external/ bcc
project. This will be used for tracepoint and perf eBPF support. In the
future it can be used for other things as kernel eBPF support advances.
This patch will be merged only after bcc is cloned into external/ to
prevent build breakage.
Bug: 112334572
Change-Id: Ic0fd9504e18031132d40bb627c5e44058d59c9f8
Signed-off-by: Joel Fernandes <joelaf@google.com>
Rename the bpf support library in android to libbpf_android to make
it compatible with external bcc project. Fix the Android.bp file to
prevent build break.
Bug: 112334572
Test: No build breakage.
Change-Id: I24ae8aaf8ca8afdded5e46d21f0deec68d6030da
