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tools: clean unwanted ELF flags from binaries

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Fixes warnings on old Android, such as:

linker  : /data/data/com.wireguard.android/code_cache/bin/wg-quick: unsupported flags DT_FLAGS_1=0x8000001
linker  : /data/data/com.wireguard.android/code_cache/bin/wg: unsupported flags DT_FLAGS_1=0x8000001

Reported-by: L.W.Reek <syphyr@gmail.com>
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
This commit is contained in:
Jason A. Donenfeld
2023-04-05 13:50:57 +02:00
parent 33aded09c6
commit 6209d3ee3d
3 changed files with 17 additions and 0 deletions
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tunnel/tools/CMakeLists.txt
+13
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@@ -28,3 +28,16 @@ add_custom_target(libwg-go.so WORKING_DIRECTORY "${CMAKE_CURRENT_SOURCE_DIR}/lib
DESTDIR=${CMAKE_LIBRARY_OUTPUT_DIRECTORY}
BUILDDIR=${CMAKE_LIBRARY_OUTPUT_DIRECTORY}/../generated-src
)
# Strip unwanted ELF sections to prevent DT_FLAGS_1 warnings on old Android versions
file(GLOB ELF_CLEANER_SOURCES elf-cleaner/*.c elf-cleaner/*.cpp)
add_custom_target(elf-cleaner COMMENT "Building elf-cleaner" VERBATIM COMMAND "${CMAKE_C_COMPILER}"
-O2 -DPACKAGE_NAME="elf-cleaner" -DPACKAGE_VERSION="" -DCOPYRIGHT=""
-o "${CMAKE_CURRENT_BINARY_DIR}/elf-cleaner" ${ELF_CLEANER_SOURCES}
)
add_custom_command(TARGET libwg.so POST_BUILD VERBATIM COMMAND "${CMAKE_CURRENT_BINARY_DIR}/elf-cleaner"
--api-level "${ANDROID_NATIVE_API_LEVEL}" "$<TARGET_FILE:libwg.so>")
add_dependencies(libwg.so elf-cleaner)
add_custom_command(TARGET libwg-quick.so POST_BUILD VERBATIM COMMAND "${CMAKE_CURRENT_BINARY_DIR}/elf-cleaner"
--api-level "${ANDROID_NATIVE_API_LEVEL}" "$<TARGET_FILE:libwg-quick.so>")
add_dependencies(libwg-quick.so elf-cleaner)
tunnel/tools/elf-cleaner
Submodule
+1
Submodule tunnel/tools/elf-cleaner added at 7efc050906