[clang] [llvm] [PAC][ELF][AArch64] Support signed personality function pointer (PR #113148)

[LLVM Continuous Integration via llvm-commits]

llvm-ci wrote:

LLVM Buildbot has detected a new failure on builder `lldb-aarch64-ubuntu` running on `linaro-lldb-aarch64-ubuntu` while building `clang,llvm` at step 6 "test".

Full details are available at: https://lab.llvm.org/buildbot/#/builders/59/builds/9545

<details>
<summary>Here is the relevant piece of the build log for the reference</summary>

```
Step 6 (test) failure: build (failure)
...
UNSUPPORTED: lldb-api :: api/multiple-targets/TestMultipleTargets.py (5 of 2060)
UNSUPPORTED: lldb-api :: arm/breakpoint-it/TestBreakpointIt.py (6 of 2060)
UNSUPPORTED: lldb-api :: arm/breakpoint-thumb-codesection/TestBreakpointThumbCodesection.py (7 of 2060)
PASS: lldb-api :: assert_messages_test/TestAssertMessages.py (8 of 2060)
PASS: lldb-api :: arm/emulation/TestEmulations.py (9 of 2060)
UNSUPPORTED: lldb-api :: commands/add-dsym/uuid/TestAddDsymCommand.py (10 of 2060)
PASS: lldb-api :: commands/apropos/basic/TestApropos.py (11 of 2060)
PASS: lldb-api :: clear-sbvalue-nonaddressable-bits/TestClearSBValueNonAddressableBits.py (12 of 2060)
PASS: lldb-api :: commands/breakpoint/command/list/TestBreakpointCommandList.py (13 of 2060)
UNRESOLVED: lldb-api :: api/command-return-object/TestSBCommandReturnObject.py (14 of 2060)
******************** TEST 'lldb-api :: api/command-return-object/TestSBCommandReturnObject.py' FAILED ********************
Script:
--
/usr/bin/python3.10 /home/tcwg-buildbot/worker/lldb-aarch64-ubuntu/llvm-project/lldb/test/API/dotest.py -u CXXFLAGS -u CFLAGS --env LLVM_LIBS_DIR=/home/tcwg-buildbot/worker/lldb-aarch64-ubuntu/build/./lib --env LLVM_INCLUDE_DIR=/home/tcwg-buildbot/worker/lldb-aarch64-ubuntu/build/include --env LLVM_TOOLS_DIR=/home/tcwg-buildbot/worker/lldb-aarch64-ubuntu/build/./bin --arch aarch64 --build-dir /home/tcwg-buildbot/worker/lldb-aarch64-ubuntu/build/lldb-test-build.noindex --lldb-module-cache-dir /home/tcwg-buildbot/worker/lldb-aarch64-ubuntu/build/lldb-test-build.noindex/module-cache-lldb/lldb-api --clang-module-cache-dir /home/tcwg-buildbot/worker/lldb-aarch64-ubuntu/build/lldb-test-build.noindex/module-cache-clang/lldb-api --executable /home/tcwg-buildbot/worker/lldb-aarch64-ubuntu/build/./bin/lldb --compiler /home/tcwg-buildbot/worker/lldb-aarch64-ubuntu/build/./bin/clang --dsymutil /home/tcwg-buildbot/worker/lldb-aarch64-ubuntu/build/./bin/dsymutil --make /usr/bin/make --llvm-tools-dir /home/tcwg-buildbot/worker/lldb-aarch64-ubuntu/build/./bin --lldb-obj-root /home/tcwg-buildbot/worker/lldb-aarch64-ubuntu/build/tools/lldb --lldb-libs-dir /home/tcwg-buildbot/worker/lldb-aarch64-ubuntu/build/./lib /home/tcwg-buildbot/worker/lldb-aarch64-ubuntu/llvm-project/lldb/test/API/api/command-return-object -p TestSBCommandReturnObject.py
--
Exit Code: 1

Command Output (stdout):
--
lldb version 20.0.0git (https://github.com/llvm/llvm-project.git revision 4fb1cda6606ba75782aa1964835abf1a69e2adae)
  clang revision 4fb1cda6606ba75782aa1964835abf1a69e2adae
  llvm revision 4fb1cda6606ba75782aa1964835abf1a69e2adae
Skipping the following test categories: ['libc++', 'dsym', 'gmodules', 'debugserver', 'objc']

--
Command Output (stderr):
--
FAIL: LLDB (/home/tcwg-buildbot/worker/lldb-aarch64-ubuntu/build/bin/clang-aarch64) :: test_sb_command_return_object (TestSBCommandReturnObject.TestSBCommandReturnObject)
======================================================================
ERROR: test_sb_command_return_object (TestSBCommandReturnObject.TestSBCommandReturnObject)
----------------------------------------------------------------------
Error when building test subject.

Build Command:
/usr/bin/make VPATH=/home/tcwg-buildbot/worker/lldb-aarch64-ubuntu/llvm-project/lldb/test/API/api/command-return-object -C /home/tcwg-buildbot/worker/lldb-aarch64-ubuntu/build/lldb-test-build.noindex/api/command-return-object/TestSBCommandReturnObject.test_sb_command_return_object -I /home/tcwg-buildbot/worker/lldb-aarch64-ubuntu/llvm-project/lldb/test/API/api/command-return-object -I /home/tcwg-buildbot/worker/lldb-aarch64-ubuntu/llvm-project/lldb/packages/Python/lldbsuite/test/make -f /home/tcwg-buildbot/worker/lldb-aarch64-ubuntu/llvm-project/lldb/test/API/api/command-return-object/Makefile all ARCH=aarch64 CC=/home/tcwg-buildbot/worker/lldb-aarch64-ubuntu/build/bin/clang CC_TYPE=clang CXX=/home/tcwg-buildbot/worker/lldb-aarch64-ubuntu/build/bin/clang++ LLVM_AR=/home/tcwg-buildbot/worker/lldb-aarch64-ubuntu/build/./bin/llvm-ar AR=/home/tcwg-buildbot/worker/lldb-aarch64-ubuntu/build/./bin/llvm-ar OBJCOPY=/home/tcwg-buildbot/worker/lldb-aarch64-ubuntu/build/./bin/llvm-objcopy STRIP=/home/tcwg-buildbot/worker/lldb-aarch64-ubuntu/build/./bin/llvm-strip ARCHIVER=/home/tcwg-buildbot/worker/lldb-aarch64-ubuntu/build/./bin/llvm-ar DWP=/home/tcwg-buildbot/worker/lldb-aarch64-ubuntu/build/./bin/llvm-dwp CLANG_MODULE_CACHE_DIR=/home/tcwg-buildbot/worker/lldb-aarch64-ubuntu/build/lldb-test-build.noindex/module-cache-clang/lldb-api LLDB_OBJ_ROOT=/home/tcwg-buildbot/worker/lldb-aarch64-ubuntu/build/tools/lldb CXX_SOURCES=main.cpp EXE=/home/tcwg-buildbot/worker/lldb-aarch64-ubuntu/build/lldb-test-build.noindex/api/command-return-object/TestSBCommandReturnObject.test_sb_command_return_object/command-return-object 'CFLAGS_EXTRAS=-std=c++11  -I/home/tcwg-buildbot/worker/lldb-aarch64-ubuntu/llvm-project/lldb/include -I/home/tcwg-buildbot/worker/lldb-aarch64-ubuntu/build/tools/lldb/include ' 'LD_EXTRAS=-L/home/tcwg-buildbot/worker/lldb-aarch64-ubuntu/build/./lib -llldb -Wl,-rpath,/home/tcwg-buildbot/worker/lldb-aarch64-ubuntu/build/./lib' OS=Linux HOST_OS=Linux

Build Command Output:
make: Entering directory '/home/tcwg-buildbot/worker/lldb-aarch64-ubuntu/build/lldb-test-build.noindex/api/command-return-object/TestSBCommandReturnObject.test_sb_command_return_object'
/home/tcwg-buildbot/worker/lldb-aarch64-ubuntu/build/bin/clang++  -std=c++11 -g -O0   -I/home/tcwg-buildbot/worker/lldb-aarch64-ubuntu/llvm-project/lldb/packages/Python/lldbsuite/test/make/../../../../..//include -I/home/tcwg-buildbot/worker/lldb-aarch64-ubuntu/build/tools/lldb/include -I/home/tcwg-buildbot/worker/lldb-aarch64-ubuntu/llvm-project/lldb/test/API/api/command-return-object -I/home/tcwg-buildbot/worker/lldb-aarch64-ubuntu/llvm-project/lldb/packages/Python/lldbsuite/test/make -include /home/tcwg-buildbot/worker/lldb-aarch64-ubuntu/llvm-project/lldb/packages/Python/lldbsuite/test/make/test_common.h -fno-limit-debug-info  -std=c++11  -I/home/tcwg-buildbot/worker/lldb-aarch64-ubuntu/llvm-project/lldb/include -I/home/tcwg-buildbot/worker/lldb-aarch64-ubuntu/build/tools/lldb/include     --driver-mode=g++ -MT main.o -MD -MP -MF main.d -c -o main.o /home/tcwg-buildbot/worker/lldb-aarch64-ubuntu/llvm-project/lldb/test/API/api/command-return-object/main.cpp
/home/tcwg-buildbot/worker/lldb-aarch64-ubuntu/build/bin/clang main.o -g -O0   -I/home/tcwg-buildbot/worker/lldb-aarch64-ubuntu/llvm-project/lldb/packages/Python/lldbsuite/test/make/../../../../..//include -I/home/tcwg-buildbot/worker/lldb-aarch64-ubuntu/build/tools/lldb/include -I/home/tcwg-buildbot/worker/lldb-aarch64-ubuntu/llvm-project/lldb/test/API/api/command-return-object -I/home/tcwg-buildbot/worker/lldb-aarch64-ubuntu/llvm-project/lldb/packages/Python/lldbsuite/test/make -include /home/tcwg-buildbot/worker/lldb-aarch64-ubuntu/llvm-project/lldb/packages/Python/lldbsuite/test/make/test_common.h -fno-limit-debug-info  -std=c++11  -I/home/tcwg-buildbot/worker/lldb-aarch64-ubuntu/llvm-project/lldb/include -I/home/tcwg-buildbot/worker/lldb-aarch64-ubuntu/build/tools/lldb/include  -L/home/tcwg-buildbot/worker/lldb-aarch64-ubuntu/build/./lib -llldb -Wl,-rpath,/home/tcwg-buildbot/worker/lldb-aarch64-ubuntu/build/./lib   --driver-mode=g++ -o "/home/tcwg-buildbot/worker/lldb-aarch64-ubuntu/build/lldb-test-build.noindex/api/command-return-object/TestSBCommandReturnObject.test_sb_command_return_object/command-return-object"
/usr/bin/ld: main.o: unrecognized relocation type 0x244 in section `.data.DW.ref.__gxx_personality_v0[DW.ref.__gxx_personality_v0]'
/usr/bin/ld: is this version of the linker - (GNU Binutils for Ubuntu) 2.38 - out of date ?
/usr/bin/ld: final link failed: bad value
clang: error: linker command failed with exit code 1 (use -v to see invocation)
make: *** [Makefile.rules:522: /home/tcwg-buildbot/worker/lldb-aarch64-ubuntu/build/lldb-test-build.noindex/api/command-return-object/TestSBCommandReturnObject.test_sb_command_return_object/command-return-object] Error 1
make: Leaving directory '/home/tcwg-buildbot/worker/lldb-aarch64-ubuntu/build/lldb-test-build.noindex/api/command-return-object/TestSBCommandReturnObject.test_sb_command_return_object'

Test Directory:
/home/tcwg-buildbot/worker/lldb-aarch64-ubuntu/llvm-project/lldb/test/API/api/command-return-object

```

</details>

https://github.com/llvm/llvm-project/pull/113148