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2021-04-20Merge "Ignore backup files left by emacs."Treehugger Robot
2021-04-19Ignore backup files left by emacs.Dan Albert
Test: Added a file like this locally and the upload hook didn't care Bug: None Change-Id: I4c33f2517a9a83c7797d3ea9074fffeedf85dcaa
2021-04-15Force everything to use python3 for consistency.Elliott Hughes
Rather than "whatever people have installed as 'python' on their machine". I've removed check-symbols.py because that's been broken for years and we never even noticed, and I'm not sure it's worth fixing. Test: treehugger, manual Change-Id: Ieb996bbdf790a18d4b1fb46a409cc240ba2a2a49
2021-04-15Make gensyscalls.py compatible with Python 3.Rupert Shuttleworth
Test: Fixes bp2build; bazel build //bionic/... Change-Id: I6ab66e99935b962f1ff99e478c0f55188f31b495
2021-03-19bp2build: remove some bp2build_available props, use package_allowlist instead.Jingwen Chen
Test: build/bazel/scripts/milestone-2/demo.sh full Test: bazel query //bionic/... Change-Id: I737574766be898279d8bf6f3f0adb43dcc40c220
2021-02-24Make libc genrules and its tool dep bp2build_availableChris Parsons
Test: lunch aosp_flame && USE_BAZEL_ANALYSIS=1 m libc Test: lunch aosp_flame && USE_BAZEL_ANALYSIS=1 m crtbegin_so1 Change-Id: I12380ef9294f8b7c3b00ea700d804c1abde7ad04
2021-02-19Add LOCAL_LICENSE_KINDS to bionicBob Badour
Added SPDX-license-identifier-Apache-2.0 to: apex/Android.bp libdl/Android.bp tools/Android.bp tools/versioner/Android.bp tools/versioner/src/Android.bp Added SPDX-license-identifier-Apache-2.0 SPDX-license-identifier-BSD to: benchmarks/Android.bp benchmarks/linker_relocation/gen/Android.bp libc/malloc_debug/Android.bp libc/system_properties/Android.bp tests/Android.bp tests/libs/Android.bp tests/libs/Android.build.dlext_testzip.mk tests/make_fortify_compile_test.mk Added SPDX-license-identifier-Apache-2.0 SPDX-license-identifier-BSD SPDX-license-identifier-ISC SPDX-license-identifier-MIT legacy_notice legacy_unencumbered to: libc/Android.bp Added SPDX-license-identifier-Apache-2.0 SPDX-license-identifier-BSD SPDX-license-identifier-MIT legacy_unencumbered to: libm/Android.bp Added SPDX-license-identifier-Apache-2.0 legacy_unencumbered to: libc/tools/Android.bp Added SPDX-license-identifier-BSD to: benchmarks/linker_relocation/Android.bp benchmarks/spawn/Android.bp libc/async_safe/Android.bp libc/malloc_hooks/Android.bp libfdtrack/Android.bp linker/Android.bp tests/headers/Android.bp tests/headers/posix/Android.bp Bug: 68860345 Bug: 151177513 Bug: 151953481 Test: m all Exempt-From-Owner-Approval: janitorial work Change-Id: Ib05bcaa276b3aa71a7654ccbe8e67e1f16aec9f3
2021-02-16Revert "[LSC] Add LOCAL_LICENSE_KINDS to bionic"Elliott Hughes
This reverts commit 48d43034d7b5a419ba56f052856696d53a7bd979. Reason for revert: bionic is multiple projects, not just one. Change-Id: Ib31e1bb8888cc85c6e7736c4e2a1d4652fd23935
2021-02-12[LSC] Add LOCAL_LICENSE_KINDS to bionicBob Badour
Added SPDX-license-identifier-Apache-2.0 to: libdl/Android.bp tools/versioner/src/Android.bp Added SPDX-license-identifier-Apache-2.0 SPDX-license-identifier-BSD to: benchmarks/Android.bp libc/malloc_debug/Android.bp libc/system_properties/Android.bp linker/Android.bp tests/Android.bp tests/libs/Android.bp tests/libs/Android.build.dlext_testzip.mk tests/make_fortify_compile_test.mk Added SPDX-license-identifier-Apache-2.0 SPDX-license-identifier-BSD SPDX-license-identifier-ISC SPDX-license-identifier-MIT legacy_notice legacy_unencumbered to: Android.bp libc/Android.bp Added SPDX-license-identifier-Apache-2.0 SPDX-license-identifier-BSD SPDX-license-identifier-ISC SPDX-license-identifier-MIT legacy_unencumbered to: tools/Android.bp tools/versioner/Android.bp Added SPDX-license-identifier-Apache-2.0 SPDX-license-identifier-BSD SPDX-license-identifier-MIT legacy_unencumbered to: libm/Android.bp Added SPDX-license-identifier-Apache-2.0 legacy_unencumbered to: libc/tools/Android.bp Added SPDX-license-identifier-BSD to: benchmarks/linker_relocation/Android.bp benchmarks/spawn/Android.bp libc/async_safe/Android.bp libc/malloc_hooks/Android.bp libfdtrack/Android.bp tests/headers/Android.bp tests/headers/posix/Android.bp Added legacy_notice to: apex/Android.bp benchmarks/linker_relocation/gen/Android.bp Bug: 68860345 Bug: 151177513 Bug: 151953481 Test: m all Exempt-From-Owner-Approval: janitorial work Change-Id: I76cad00578b9b99180ee5dd1e04b4646d5c5fedf
2021-02-03Convert generate-NOTICE.py to Python 3, fix name.Dan Albert
Python module names should be lower case and not use hyphens (the former is a convention, the latter is a requirement for importable modules). Also updates the shell script to always use Python 3 so we don't need to maintain Python 2 compatibility. Test: repo upload, in both a python 2 and python 3 virtualenv Bug: None Change-Id: I486e54a12686b4e528dc6c9c47af5c7a52a7b790
2021-02-03Convert genfunctosyscallnrs to Python 3.Dan Albert
Test: treehugger Test: pytest libc/tools Bug: None Change-Id: Idda7161bbd2e2f351e0750874dc4d766ef98cc2b
2021-02-03Convert gensecomp.py to Python 3.Elliott Hughes
The genseccomp tests haven't been run since at least 2018. Deleted the ones that are testing APIs that no longer exist or have been refactored to take very different inputs. Test: treehugger Test: pytest tools Bug: None Change-Id: Iaf6b6b6a2e922b181a457a74eb4b5abe90425dfb
2021-02-02Move gensseccomp and genfunctosyscallnrs next to their sources.Jingwen Chen
This is a manual refactoring to ensure that the modules respect package boundaries for input files. Test: m gensseccomp genfunctosyscallnrs Change-Id: I8ca6cbe85a50e41bfe874a899653c2309c59a822
2020-12-17Changes to bionic/libc to demonstrate mixed builds.Chris Parsons
Test: source build/envsetup.sh && lunch 16 && source build/soong/bazel/bazelenv.sh && m, then verify ninja file was based on intermediates from bazel-out Change-Id: I89f320dd58083710012ea1f8e3902e723602ea37
2020-09-04libc: Prepare support for Armv8.3-A PAuth and Armv8.5-A BTI in *.STamas Petz
The instruction "bti c" is added through ENTRY*() macro, using __bionic_asm_custom_entry(f). The .note.gnu.property section is added with the new macro NOTE_GNU_PROPERTY(). BTI and PAuth features are automatically selected based on the presence of __ARM_FEATURE_* macros. Furthermore, gensyscalls.py got updated to append the new macro to the generated syscalls-arm64.S. Test: Tested on FVP with BTI enabled. Change-Id: I40ffe294b8426421125fffd0a9758567d919a09d
2020-07-31More cleanup for #inclusivefixit.Elliott Hughes
Found manually with grep, since the script seems to miss stuff. Test: treehugger Change-Id: I5933cbade9792801d4a0bec1ccb077efa6ad8fbc
2020-07-27Remove pylintrc.Dan Albert
Considering none of the files in this directory are pylint clean I don't think this is being used. They also seem to use a mix of styles so we need to either unify or split things into subdirectories if we want to use pylint here. Test: None Bug: http://b/161896447 Change-Id: I5bc298bd64d44cc10d3d28121666e7893222ea96
2020-06-15Don't look for licenses in .md files and pylintrc files.Elliott Hughes
Also be quiet about public domain files unless asked to be verbose. Test: ./libc/tools/generate-NOTICE.py Change-Id: Ia7e4d42870b2ef4b0b77a11093eefa4f117bebaf
2020-06-15Merge "Use more inclusive language."Treehugger Robot
2020-06-15Use more inclusive language.Elliott Hughes
One turns out not to be used at all, and the pylintrc even uses the more intention-revealing term in the machine readable part, just not the comment! Test: treehugger Change-Id: I4db7f1cf4fa1aa8ee601857e4e4c400e2119887c
2020-06-15Use more inclusive language for seccomp filterVictor Hsieh
blacklist and whitelist are replaced with blocklist and allowlist respectively. Test: CtsSeccompHostTestCases Change-Id: I39d9eda89038d1addbdaed59284a254a34cea1c6
2020-05-18Speed up seccomp with priority list.Bram Bonné
Allow to provide a list of prioritized syscalls (e.g., syscalls that we know occur often) which are checked before other syscalls in seccomp. When constructing the bpf seccomp filter, traverse prioritized syscalls in a linear list before checking all other syscalls in a binary tree. Bug: 156732794 Test: make, inspect generated *_system_policy.cpp files Test: simpleperf on futex/ioctl-heavy app seems to show 5-10% less time spent in seccomp call Change-Id: I509343bcd32ada90c0591785ab5cb12d2a38c31e (cherry picked from commit ce84677733c18bc442f7f1b2f1840117c904db70)
2020-02-13Clean up syscall stub/seccomp filter generation.Elliott Hughes
Test: treehugger Change-Id: Iceb1c22d82b4d402166c3712b5b8b48a30937c6d
2020-02-03Stop generating unused headers.Elliott Hughes
These just cause confusion because they often have different values/layouts, but they're never actually used. Test: treehugger Change-Id: I424034088e017c919f62fcefa7d6d3f903f31cfb
2019-09-26Fix gensyscalls.py to actually use the input argument provided inJohn Cater
bionic/libc/Android.bp. Test: Built and tested bionic. Change-Id: Ibb25990b2b1b5c18edfdaaab4f1593fa8d95f338
2019-09-17Remove global seccomp list.Elliott Hughes
Never used, and incompatible with having bionic in a mainline module. Test: builds Change-Id: If377f66cc105fd3a1ec4d9c92330fa6a2d2c145c
2019-06-19Remove the ___ hack.Elliott Hughes
Plain __ for generated syscalls didn't mean it was a hidden symbol, it just meant "please don't use this". We added ___ to signify that a hidden symbol should be generated, but then we added the map files anyway so you now have to explicitly export symbols. Given that, this convention serves no particular purpose so we may as well just use the nicer names have everything look the same. Test: treehugger Change-Id: If424e17a49c36f4be545f5d283c4561a6ea9c7ea
2019-04-19Move libdl and linker to static NOTICE files.Elliott Hughes
The libstdc++ directory has no copyright headers, so it was a no-op anyway. The interesting part will be switching libc and libm over to genrules... Test: N/A Change-Id: Iec92562af40c451fdcb4a7468984878ec5dba2ce
2019-04-16Generate assembler system call stubs via genrule.Elliott Hughes
There's no need to check in generated code. Test: builds & boots Change-Id: Ife368bca4349d4adeb0666db590356196b4fbd63
2019-04-16libc: generate syscall stubs in one big file...Elliott Hughes
...all the better to switch to a genrule rather than checking in generated source. This also removes all the code in the script to deal with git, rather than fix it. We won't need that where we're going. Test: boots Change-Id: I468ce019d4232a7ef27e5cb5cfd89f4c2fe4ecbd
2019-04-11<bits/glibc-syscalls.h>: only regenerate when we have new uapi headers.Elliott Hughes
Test: update_all.py Change-Id: Iaa92dce263197f5a0e7d2dce5e00a31372dcb3e9
2019-03-07Update to v5.0 kernel headers.Christopher Ferris
Test: Builds and boots on taimen. Change-Id: I13843bf1ab30ea89a50852adc88f2cba8401bded
2019-01-19genfunctosyscallnrs: maps bionic functions to syscall numbers.Martijn Coenen
Bionic maps typical C functions like setresuid() to a syscall, depending on the architecture used. This tool generates a .h file that maps all bionic functions in SYSCALLS.txt to the syscall number used on a particular architecture. It can then be used to generate correct seccomp policy at runtime. Example output in func_to_syscall_nrs.h: Bug: 111434506 Test: manually inspect func_to_syscall_nrs.h Change-Id: I8bc5c1cb17a2e7b5c534b2e0496411f2d419ad86
2018-12-17Generate the per-arch .map files at build time.Elliott Hughes
We shouldn't be checking in these generated files... Bug: N/A Test: ran tests Change-Id: Ib67c1ba839eacd7acebd713e1dcd4dd2c25d67f0
2018-11-09Add lp32 and lp64 shorthands to SYSCALLS.TXT.Elliott Hughes
Bug: N/A Test: updating the generated stubs is a no-op Change-Id: I7f6f9bcfd8c054f0a2d7e5f488eacb88cefb8d15
2018-08-06seccomp: Generate the policy files at compile timeLuis Hector Chavez
This change avoids having to run the genseccomp.py script every time a policy file is edited, and instead generates these files at compile-time. Bug: None Test: m Test: find out/soong/ -name x86_64_global_policy.cpp # Shows files Test: generated policies are equivalent to original policies Change-Id: I12461fe0c5fb02c008c1b2503fbb994b8aa2f56b
2018-08-03genseccomp.py: Add a way to better find the clang prebuiltLuis Hector Chavez
This change makes it possible to invoke this tool without having to fiddle with the path. Bug: None Test: ./bionic/libc/tools/genseccomp.py # Succeeded Change-Id: Ib24d70abc973fe774cda4209e46a5b66ae7617be
2018-07-24Update to FreeBSD libm r336665.Elliott Hughes
This reverts commit 253a8306316cedfd6fd3e3a169fbffe4cac04035 and moves us forward to a revision that contains fixes for the problem with the previous attempt. This also makes sincos(3)/sincosf(3)/sincosl(3) available to `_BSD_SOURCE` as well as `_GNU_SOURCE`. The new FreeBSD libm code requires the FreeBSD `__CONCAT` macro, and all our existing callers are FreeBSD too, so update that. There's also an assumption that <complex.h> drags in <math.h> which isn't true for us, so work around that with `-include` in the makefile. This then causes clang to recognize a bug -- returning from a void function -- in our fake (LP32) sincosl(3), so fix that too. Bug: http://b/111710419 Change-Id: I84703ad844f8afde6ec6b11604ab3c096ccb62c3 Test: ran tests
2018-07-21Revert "Update to FreeBSD libm r336523."Andreas Gampe
This reverts commit f86ee10278116d211cfb08679416444e0e714cb5. Incorrect result for fmodf(3.0f, 0f) = 1.0f breaks ART tests. Bug: 111710419 Test: art/test/testrunner/testrunner.py -b -t 436-rem-float --target Change-Id: I7eae68fb92740db33415d16418447bcbbd98ecba
2018-07-19Update to FreeBSD libm r336523.Elliott Hughes
This includes an ld128 powl, plus the clog* and cpow* families. Also teach the NOTICE generator to strip SPDX-License-Identifier lines. Bug: N/A Test: ran tests Change-Id: Ic8289d1253666a19468a4088884cf7540f1ec66d
2018-01-22Block bunch of privileged syscalls to appsVictor Hsieh
Test: build, run some app Bug: 63944145 Change-Id: I13eb56f923732e110851dec02eaa11f6cb44535c
2018-01-04Split zygote's seccomp filter into twoVictor Hsieh
To pave the way to reducing app's kernel attack surface, this change split the single filter into one for system and one for apps. Note that there is current no change between them. Zygote will apply these filters appropriately to system server and apps. Keep set_seccomp_filter() for now until the caller has switched to the new API, which I will do immediately after this before the two filters diverse. Also remove get_seccomp_filter() since it doesn't seem to be used anyway. Test: diff the generated code, no difference except the variable names Test: cts -m CtsSecurityTestCases -t android.security.cts.SeccompTest Bug: 63944145 Change-Id: Id8ba05a87332c92ec697926af77bc5742eb04b23
2017-10-20Merge "Be more specific about POSIX obsolescence."Elliott Hughes
2017-10-19Be more specific about POSIX obsolescence.Elliott Hughes
Bug: N/A Test: N/A Change-Id: Iacc741d18fedbca7c6e8da9d2c64f3d86f9d136b
2017-10-19Ignore sockatmark.Elliott Hughes
I was unable to find a single use of this anywhere, and the networking folks point out https://tools.ietf.org/html/rfc6093: """ 5. Advice to New Applications Employing TCP As a result of the issues discussed in Section 3.2 and Section 3.4, new applications SHOULD NOT employ the TCP urgent mechanism. """ Applications that think they want to do these tricksy things should be referred to section 3.4, wherein it's noted that these semantics are effectively dead and it's middleboxes what killed 'em: """ 3.4. Interaction of Middleboxes with TCP Urgent Indications As a result of the publication of Network Intrusion Detection System (NIDS) evasion techniques based on TCP urgent indications [phrack], some middleboxes clear the urgent indications by clearing the URG flag and setting the Urgent Pointer to zero. This causes the "urgent data" to become "in line" (that is, accessible by the read(2) call or the recv(2) call without the MSG_OOB flag) in the case of those TCP implementations that interpret the TCP urgent mechanism as a facility for delivering "out-of-band" data (as described in Section 3.1). An example of such a middlebox is the Cisco PIX firewall [Cisco-PIX]. This should discourage applications from depending on urgent indications for their correct operation, as urgent indications may not be reliable in the current Internet. """ Bug: N/A Test: N/A Change-Id: I73280db1d803bb7bd93954c13c653fa0cd3daff9
2017-10-19Call fmtmsg/getdate/getdate_err useless.Elliott Hughes
They're POSIX, and they're implemented in iOS and glibc, but they're not actually used in any codebase I have access to. They're *defined* in several places, and some of those places have a handful of tests, but I couldn't find a single genuine caller. Bug: N/A Test: N/A Change-Id: Id3e2c36183fcff323aa5a2e3a3dabaa8378fae56
2017-10-13Fix mip64 build.Elliott Hughes
Fallout from the unified sysroot work. Bug: N/A Test: builds Change-Id: If0595a241b9ce0d8c8c7137ddaf8fca932487b7c
2017-10-13Ignore pthread_getconcurrency/pthread_setconcurrency.Elliott Hughes
They're marked obsolescent in POSIX, don't clearly mean anything, aren't portable because the values don't mean anything, and are no-ops in other C libraries that do "implement" them. Bug: N/A Test: N/A Change-Id: I07342a0a6a5f6616a8432bfea24ed944c7971d27
2017-10-12Ignore endutxent.Elliott Hughes
We have no utmp, and we're ignoring getutxent/setutxent, and endutxent belongs in the same group. Bug: N/A Test: N/A Change-Id: Ide032960a0f95750f3bb8f2e62a25e5e7d25c7b6
2017-10-12Unified sysroot: kill arch-specific include dirs.Elliott Hughes
<machine/asm.h> was internal use only. <machine/fenv.h> is quite large, but can live in <bits/...>. <machine/regdef.h> is trivially replaced by saying $x instead of x in our assembler. <machine/setjmp.h> is trivially inlined into <setjmp.h>. <sgidefs.h> is unused. Bug: N/A Test: builds Change-Id: Id05dbab43a2f9537486efb8f27a5ef167b055815
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