[Bug ld/32266] New: ld.bfd segfaults when linking libclang_rt.asan-powerpc64.so on 32-bit PowerPC

[glaubitz at physik dot fu-berlin.de]

https://sourceware.org/bugzilla/show_bug.cgi?id=32266

            Bug ID: 32266
           Summary: ld.bfd segfaults when linking
                    libclang_rt.asan-powerpc64.so on 32-bit PowerPC
           Product: binutils
           Version: 2.43.1
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: ld
          Assignee: unassigned at sourceware dot org
          Reporter: glaubitz at physik dot fu-berlin.de
  Target Milestone: ---
              Host: powerpc-*-*

Trying to build LLVM 18 with compiler-rt enabled on 32-bit PowerPC results in
ld.bfd crashing with a segmentation fault:

(sid_powerpc-dchroot)glaubitz@perotto:~/build-llvm/runtimes/runtimes-bins$
/usr/bin/ld.bfd --hash-style=gnu --build-id --eh-frame-hdr -m elf64ppc -shared
-o
/home/glaubitz/build-llvm/lib/clang/18/lib/linux/libclang_rt.asan-powerpc64.so
/usr/bin/../lib/gcc/powerpc-linux-gnu/14/../../../../lib64/crti.o
/usr/bin/../lib/gcc/powerpc-linux-gnu/14/64/crtbeginS.o
-L/usr/bin/../lib/gcc/powerpc-linux-gnu/14/64
-L/usr/bin/../lib/gcc/powerpc-linux-gnu/14/../../../../lib64 -L/lib/../lib64
-L/usr/lib/../lib64 -L/lib -L/usr/lib -z relro --build-id --as-needed -latomic
-z nodelete -z text --version-script
/home/glaubitz/build-llvm/runtimes/runtimes-bins/compiler-rt/lib/asan/clang_rt.asan-dynamic-powerpc64.vers
-soname libclang_rt.asan-powerpc64.so
compiler-rt/lib/interception/CMakeFiles/RTInterception.powerpc64.dir/interception_linux.cpp.o
compiler-rt/lib/interception/CMakeFiles/RTInterception.powerpc64.dir/interception_mac.cpp.o
compiler-rt/lib/interception/CMakeFiles/RTInterception.powerpc64.dir/interception_win.cpp.o
compiler-rt/lib/interception/CMakeFiles/RTInterception.powerpc64.dir/interception_type_test.cpp.o
compiler-rt/lib/sanitizer_common/CMakeFiles/RTSanitizerCommon.powerpc64.dir/sanitizer_allocator.cpp.o
compiler-rt/lib/sanitizer_common/CMakeFiles/RTSanitizerCommon.powerpc64.dir/sanitizer_common.cpp.o
compiler-rt/lib/sanitizer_common/CMakeFiles/RTSanitizerCommon.powerpc64.dir/sanitizer_deadlock_detector1.cpp.o
compiler-rt/lib/sanitizer_common/CMakeFiles/RTSanitizerCommon.powerpc64.dir/sanitizer_deadlock_detector2.cpp.o
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compiler-rt/lib/sanitizer_common/CMakeFiles/RTSanitizerCommon.powerpc64.dir/sanitizer_fuchsia.cpp.o
compiler-rt/lib/sanitizer_common/CMakeFiles/RTSanitizerCommon.powerpc64.dir/sanitizer_libc.cpp.o
compiler-rt/lib/sanitizer_common/CMakeFiles/RTSanitizerCommon.powerpc64.dir/sanitizer_libignore.cpp.o
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compiler-rt/lib/sanitizer_common/CMakeFiles/RTSanitizerCommon.powerpc64.dir/sanitizer_posix.cpp.o
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compiler-rt/lib/sanitizer_common/CMakeFiles/RTSanitizerCommonSymbolizer.powerpc64.dir/sanitizer_chained_origin_depot.cpp.o
compiler-rt/lib/sanitizer_common/CMakeFiles/RTSanitizerCommonSymbolizer.powerpc64.dir/sanitizer_stack_store.cpp.o
compiler-rt/lib/sanitizer_common/CMakeFiles/RTSanitizerCommonSymbolizer.powerpc64.dir/sanitizer_stackdepot.cpp.o
compiler-rt/lib/sanitizer_common/CMakeFiles/RTSanitizerCommonSymbolizer.powerpc64.dir/sanitizer_stacktrace.cpp.o
compiler-rt/lib/sanitizer_common/CMakeFiles/RTSanitizerCommonSymbolizer.powerpc64.dir/sanitizer_stacktrace_libcdep.cpp.o
compiler-rt/lib/sanitizer_common/CMakeFiles/RTSanitizerCommonSymbolizer.powerpc64.dir/sanitizer_stacktrace_printer.cpp.o
compiler-rt/lib/sanitizer_common/CMakeFiles/RTSanitizerCommonSymbolizer.powerpc64.dir/sanitizer_stacktrace_sparc.cpp.o
compiler-rt/lib/sanitizer_common/CMakeFiles/RTSanitizerCommonSymbolizer.powerpc64.dir/sanitizer_symbolizer.cpp.o
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compiler-rt/lib/asan/CMakeFiles/RTAsan_dynamic.powerpc64.dir/asan_allocator.cpp.o
compiler-rt/lib/asan/CMakeFiles/RTAsan_dynamic.powerpc64.dir/asan_activation.cpp.o
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compiler-rt/lib/asan/CMakeFiles/RTAsan_dynamic.powerpc64.dir/asan_errors.cpp.o
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compiler-rt/lib/asan/CMakeFiles/RTAsan_dynamic.powerpc64.dir/asan_linux.cpp.o
compiler-rt/lib/asan/CMakeFiles/RTAsan_dynamic.powerpc64.dir/asan_mac.cpp.o
compiler-rt/lib/asan/CMakeFiles/RTAsan_dynamic.powerpc64.dir/asan_malloc_linux.cpp.o
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compiler-rt/lib/asan/CMakeFiles/RTAsan_dynamic.powerpc64.dir/asan_stack.cpp.o
compiler-rt/lib/asan/CMakeFiles/RTAsan_dynamic.powerpc64.dir/asan_stats.cpp.o
compiler-rt/lib/asan/CMakeFiles/RTAsan_dynamic.powerpc64.dir/asan_suppressions.cpp.o
compiler-rt/lib/asan/CMakeFiles/RTAsan_dynamic.powerpc64.dir/asan_thread.cpp.o
compiler-rt/lib/asan/CMakeFiles/RTAsan_dynamic.powerpc64.dir/asan_win.cpp.o
compiler-rt/lib/asan/CMakeFiles/RTAsan_dynamic.powerpc64.dir/asan_interceptors_vfork.S.o
compiler-rt/lib/asan/CMakeFiles/RTAsan_dynamic.powerpc64.dir/asan_new_delete.cpp.o
compiler-rt/lib/asan/CMakeFiles/RTAsan_dynamic_version_script_dummy.powerpc64.dir/dummy.cpp.o
compiler-rt/lib/ubsan/CMakeFiles/RTUbsan_cxx.powerpc64.dir/ubsan_handlers_cxx.cpp.o
compiler-rt/lib/ubsan/CMakeFiles/RTUbsan_cxx.powerpc64.dir/ubsan_type_hash.cpp.o
compiler-rt/lib/ubsan/CMakeFiles/RTUbsan_cxx.powerpc64.dir/ubsan_type_hash_itanium.cpp.o
compiler-rt/lib/ubsan/CMakeFiles/RTUbsan_cxx.powerpc64.dir/ubsan_type_hash_win.cpp.o
-lstdc++ -lc -ldl -lrt -lm -lpthread
/home/glaubitz/build-llvm/lib/clang/18/lib/linux/libclang_rt.builtins-powerpc64.a
/usr/bin/../lib/gcc/powerpc-linux-gnu/14/64/crtendS.o
/usr/bin/../lib/gcc/powerpc-linux-gnu/14/../../../../lib64/crtn.o
Segmentation fault
(sid_powerpc-dchroot)glaubitz@perotto:~/build-llvm/runtimes/runtimes-bins$

The backtrace looks like this:

(gdb) bt
#0  ppc64_elf_hide_symbol (info=0x730ea8 <link_info>, h=0x17b6788,
force_local=<optimized out>) at ../../bfd/elf-bfd.h:781
#1  0x003b16d4 in _bfd_elf_link_assign_sym_version (h=0x17b6788,
data=0xffff3120) at ../../bfd/elflink.c:2699
#2  0x0035d58c in bfd_link_hash_traverse (htab=0x10e63d0, func=0x3b1430
<_bfd_elf_link_assign_sym_version>, info=0xffff3120) at ../../bfd/linker.c:676
#3  0x003b85d8 in elf_link_hash_traverse (info=0xffff3120, f=0x3b1430
<_bfd_elf_link_assign_sym_version>, table=<optimized out>) at
../../bfd/elf-bfd.h:794
#4  bfd_elf_size_dynamic_sections (output_bfd=0x10e41c0, soname=<optimized
out>, rpath=0x0, filter_shlib=0x0, audit=audit@entry=0x0, depaudit=0x0,
auxiliary_filters=<optimized out>, info=info@entry=0x730ea8 <link_info>, 
    sinterpptr=sinterpptr@entry=0xffff31cc) at ../../bfd/elflink.c:6962
#5  0x005142d4 in ldelf_before_allocation.constprop.0 (audit=0x0,
depaudit=<optimized out>, default_interpreter_name=0x0) at
../../ld/ldelf.c:1851
#6  0x00508aa8 in ldemul_before_allocation () at ../../ld/ldemul.c:96
#7  lang_process () at ../../ld/ldlang.c:8458
#8  0x00518a18 in main (argc=<optimized out>, argv=<optimized out>) at
../../ld/ldmain.c:529
(gdb)

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