Commit graph

18 commits

Author SHA1 Message Date
Christopher Ferris
b43fe7a838 Add an option to preserve symbols and debug_frame.
New strip option named keep_symbols_and_debug_frame, that will keep the
symbols and the .debug_frame. This is meant for use by libc.so only on
arm32. Other libraries might want to use it to keep better unwinding
information on device.

Bug: 132992102

Test: Built libc.so with this option and verified that it contains
Test: the .debug_frame section.
Change-Id: I823a28199dec8316e8b26fe31ff9f17e6b11d406
2019-05-17 17:52:18 -07:00
Yi Kong
acee27cd72 Strip libgcc to only keep fallback symbols
We use libgcc as fallback for symbols not present in libclang_rt
builtins, however we didn't know what exact symbols were being used,
some may not be intended to fallback.

Create libgcc_stripped, which only contains unwind symbols from libgcc.

Bug: 29275768
Test: bionic-unit-tests
Change-Id: I5b349fa6138e51663bf3b67109b880b4356da8e8
2019-04-30 10:07:00 -07:00
Vic Yang
efd249e62a Add support for no-vendor-variant VNDK
When no-vendor-variant VNDK is enabled, the vendor variant of VNDK
libraries are not installed.  Since not all VNDK libraries will be
ready for this, we keep a list of library names in cc/vndk.go to
indicate which libraries must have their vendor variants always
installed regardless of whether no-vendor-variant VNDK is enabled.

Also add --remove-build-id option to the strip script to facilitate
the check of functional identity of the two variants.

Bug: 119423884
Test: Add a dummy VNDK library and build with
      TARGET_VNDK_USE_CORE_VARIANT := true, with the corresponding
      build/make change.

Change-Id: Ieb1589488690e1cef1e310669a8b47a8b8759dac
2019-03-21 04:29:24 +00:00
Yi Kong
b5c34d7f40 Use llvm-{strip,objcopy} by default
... except for Darwin Mach-O, as it is not supported by llvm-strip.

Test: m checkbuild
Bug: 119221035
Change-Id: I021637b6dd3530bff1f563f2ec7c2168e1083b7e
2019-02-04 18:20:28 +08:00
Pirama Arumuga Nainar
03b58e2210 Switch to clang-r349610
Bug: http://b/122481018

The '-keep' option of llvm-strip has changed to '-keep-section'.  Update
scripts/strip.sh accordingly.

Test: Tested on various targets in AOSP and internal branch.  Googlers
      see http://go/clang-r349610-testing
Change-Id: Ibfc97ecdcdc305c97a4169cead1e1e3cddda9c4c
2019-01-31 16:32:34 +00:00
Colin Cross
3adb2ed734 Remove strip.sh intermediates
The intermediate files generated by strip.sh --keep-symbols can be
very large, and are not useful after the build.  Remove them once
the final output file has been generated.

Saves ~6GB on an aosp_sailfish-userdebug build.

Test: m checkbuild
Change-Id: I0413f16ac5f423bc1b010cc9b8538f19bdea561e
2018-10-18 18:07:44 +00:00
Stephen Hines
c91ab9eb6d Switch to clang-r339409.
This also changes over llvm-strip to use the -o flag, rather than
relying on nonstandard (and no longer functional) positional arguments.

Bug: http://b/111998531
Test: Multiple new builds. For googlers - http://go/clang-r339409-testing
Change-Id: I8c82d06304af24a001e6552e36e2f540d8e364ce
2018-09-26 21:15:08 +00:00
Colin Cross
8e877af5f4 Hide warning on static executables in strip.sh
Stripping static executables prints a warning:
bash: prebuilts/gcc/linux-x86/arm/arm-linux-androideabi-4.9/bin/arm-linux-androideabi-nm: No such file or directory

The message is harmless, just hide it.

Also turn on pipefail so that the script will exit if the command
returns an error.

Bug: 24409581
Test: m checkbuild
Change-Id: I9647c55c3509e4573e6d4f2f6d88119bdf31e9fb
2018-09-19 23:23:51 +00:00
Colin Cross
0abcbe6a6d Fix inverted logic for objcopy vs. llvm-objcopy with --keep-symbols
Bug: 113936524
Test: m checkbuild
Change-Id: I958c4277342ed6885714a01bd9f35183ed73eda7
2018-09-07 17:36:40 -07:00
Colin Cross
02b04bb299 Allow strip.sh --keep-mini-debug-info to work on non-elf files
strip.sh --keep-mini-debug-info matches the default for Make, and
is currently used on lots of files that are not elf files.  For
now, just make the behavior match Make and skip files when
strip --strip-all fails.

Bug: 113936524
Test: m checkbuild
Change-Id: I3648c914c0fd7cc9b68aa93fd3cb0b77504d42f6
2018-09-05 16:30:16 -07:00
Colin Cross
f843290eb8 Fix strip.sh --keep-mini-debug-info
strip.sh --keep-mini-debug-info had extra $$ escaping from when it
was copied from make.

Bug: 113936524
Test: m checkbuild
Change-Id: I47dec958152584ca94c6149b11a06e64be2f22f9
2018-09-05 16:30:16 -07:00
Chih-Hung Hsieh
30485c920c Use llvm-{objcopy,strip} when clang lld is used.
* Pass LLVM_{OBJCOPY,STRIP} to makefile rules.
* strip.sh is used only in soong-only mode.
  It will use llvm-strip and  and llvm-objcopy
  when --use-llvm-strip is given.
  Keep flags of strip.sh in alphabetic order.
* Tested build/soong/scripts/build-ndk-prebuilts.sh
  by adding "UseClangLld": true, to soong.variables file.

Bug: 80093681
Test: build/soong/scripts/build-ndk-prebuilts.sh
Change-Id: I612267304eea434c7a33cc086b27b577d5f64094
2018-06-07 16:04:14 -07:00
Ryan Prichard
afefacf196 Fix mini_debug_info stripping when no symbols should be kept.
If there are no symbols to keep (i.e. all function symbols are also in
the dynsym table), then the "${outfile}.keep_symbols" file has size 0.
When objcopy parses a --keep-symbols file, it has a special case for
0-sized files where it silently fails (exits with status 1, no error
message). On the other hand, objcopy is happy with a file containing no
symbols, as long as there is some whitespace or a comment. Avoid the
special case by appending a newline to keep_symbols.

Bug: b/62815515
Bug: b/77242617
Test: manual
Change-Id: I90fd3258426176dc18aa5a8c19389c55fe6329c7
2018-03-29 01:39:13 +00:00
Dan Willemsen
8fec83a8b9 Use xz prebuilt
Instead of whichever xz happens to be on the PATH.

Bug: 36130900
Test: prebuilts/build-tools/build-prebuilts.sh
Change-Id: Ic9b66062ca7947f0eca9d839c0864da492d4ef71
2018-03-09 10:53:26 -08:00
Colin Cross
d00350c61b Add license headers to all go and shell files
Test: none
Change-Id: I75c443e05f2b1e17fcb6823182717d2e6f5df7c4
2017-11-17 23:05:26 +00:00
Colin Cross
1b59409256 Make mini-debug-info stripping pass on already stripped binaries
Prebuilts may already be stripped.  Instead of requiring every stripped
prebuilt to be annotated with LOCAL_STRIP_MODULE := false, just make
the default (mini-debug-info) pass through already-stripped modules
without failing.

Bug: 36793128
Test: manual
Change-Id: I9aec008a867eb7df0fbba82b6dd36605dcbf6b9f
2017-04-13 16:19:34 -07:00
Colin Cross
26c34ede29 Add support for toc optimization in soong
Skip relinking against shared libraries whose interface hasn't changed.

Test: mmma -j frameworks/native/libs/gui
Test: touch frameworks/native/libs/gui/BufferItem.cpp
Test: mmma -j frameworks/native/libs/gui, see nothing relinks past libgui
Bug: 26014946
Change-Id: I4d4b8da6a35c682341ae51869f5c72b51e192053
2016-09-30 21:05:59 -07:00
Colin Cross
665dce9320 Support stripping shared libraries and binaries
Strip all shared libraries and binaries by default.  Use a shell script
to wrap the long sequences of commands needed by some strip variants.

Change-Id: I465bf7cc48330913e60e24762fd55fa2a7731c26
2016-05-03 14:03:38 -07:00