rustc 1.66.0 requires execstack to load libLLVM.so

[cgzones]

rustc 1.66.0 requires an executable stack, which is frowned upon for security reasons and for example generally forbidden by SELinux.

System: Debian sid (amd64)

Execstack allowed:

~/.rustup/toolchains/stable-x86_64-unknown-linux-gnu/bin/rustc -vV
rustc 1.66.0 (69f9c33d7 2022-12-12)
binary: rustc
commit-hash: 69f9c33d71c871fc16ac445211281c6e7a340943
commit-date: 2022-12-12
host: x86_64-unknown-linux-gnu
release: 1.66.0
LLVM version: 15.0.2

Execstack forbidden:

~/.rustup/toolchains/stable-x86_64-unknown-linux-gnu/bin/rustc -vV
/home/christian/.rustup/toolchains/stable-x86_64-unknown-linux-gnu/bin/rustc: error while loading shared libraries: libLLVM-15-rust-1.66.0-stable.so: cannot enable executable stack as shared object requires: Permission denied

Maybe this is related to PGO or BOLT being enabled?

Stack trace:

#0  0x00007ffff7febab7 in __GI_mprotect () at ../sysdeps/unix/syscall-template.S:117
No locals.
#1  0x00007ffff7fce754 in make_main_stack_executable (stack_endp=0x7fffffffc830) at ../sysdeps/unix/sysv/linux/dl-execstack.c:40
        page = <optimized out>
        result = 0
        page = <optimized out>
        result = <optimized out>
        return_success = <optimized out>
        out = <optimized out>
#2  _dl_make_stacks_executable (stack_endp=stack_endp@entry=0x7fffffffc830) at ../sysdeps/unix/sysv/linux/dl-execstack.c:65
        err = <optimized out>
        runp = <optimized out>
#3  0x00007ffff7fd2b69 in _dl_map_object_from_fd (name=name@entry=0x7ffff4042d93 "libLLVM-15-rust-1.66.0-stable.so", origname=origname@entry=0x0, fd=<optimized out>, fbp=fbp@entry=0x7fffffffc840, realname=<optimized out>, loader=loader@entry=0x7ffff7fc3330, 
    l_type=<optimized out>, mode=<optimized out>, stack_endp=<optimized out>, nsid=<optimized out>) at ./elf/dl-load.c:1358
        l = 0x7ffff7f9b710
        header = 0x7fffffffc848
        phdr = <optimized out>
        ph = <optimized out>
        maplength = <optimized out>
        type = <optimized out>
        errstring = 0x0
        errval = 0
        r = <optimized out>
        make_consistent = false
        id = {dev = 65027, ino = 3017896}
        __PRETTY_FUNCTION__ = "_dl_map_object_from_fd"
        fail_new = <optimized out>
        stack_flags = <optimized out>
#4  0x00007ffff7fd3165 in _dl_map_object (loader=<optimized out>, name=0x7ffff4042d93 "libLLVM-15-rust-1.66.0-stable.so", type=1, trace_mode=<optimized out>, mode=0, nsid=<optimized out>) at ./elf/dl-load.c:2272
        fd = <optimized out>
        origname = <optimized out>
        realname = 0x7ffff7f9b690 "/home/christian/.rustup/toolchains/stable-x86_64-unknown-linux-gnu/bin/../lib/../lib/libLLVM-15-rust-1.66.0-stable.so"
        name_copy = <optimized out>
        l = <optimized out>
        fb = {len = 832, 
          buf = "\177ELF\002\001\001\000\000\000\000\000\000\000\000\000\003\000>\000\001", '\000' <repeats 11 times>, "@\000\000\000\000\000\000\000\300\234f\b\000\000\000\000\000\000\000\000@\000\070\000\n\000@\000.\000+\000\006\000\000\000\004\000\000\000@\000\000\000\000\000\000\000@\000\000\000\000\000\000\000@\000\000\000\000\000\000\000\060\002\000\000\000\000\000\000\060\002\000\000\000\000\000\000\b\000\000\000\000\000\000\000\001\000\000\000\004", '\000' <repeats 27 times>, ",\b>\002\000\000\000\000,\b>\002\000\000\000\000\000\020\000\000\000\000\000\000\001\000\000\000\005\000\000\000,\b>\002\000\000\000\000,\030>\002\000\000\000\000"...}
        __PRETTY_FUNCTION__ = "_dl_map_object"
        found_other_class = false
        stack_end = 0x7fffffffd6c0
#5  0x00007ffff7fcd281 in openaux (a=a@entry=0x7fffffffce90) at ./elf/dl-deps.c:64
        args = 0x7fffffffce90
#6  0x00007ffff7fe3261 in _dl_catch_exception (exception=exception@entry=0x7fffffffce70, operate=operate@entry=0x7ffff7fcd250 <openaux>, args=args@entry=0x7fffffffce90) at ./elf/dl-error-skeleton.c:208
        errcode = 0
        c = {exception = 0x7fffffffce70, errcode = 0x7fffffffcc0c, env = {{__jmpbuf = {140737353067168, -1509949440, 1, 0, 140737353888560, 140737287302547, -1749024768, -17607677575168}, __mask_was_saved = -134225184, __saved_mask = {__val = {93824992235626, 
                  18446744071964721152, 18446726466031976448, 140737354130144, 93824992235587, 18446744071968915456, 18446726466031976448, 140737354130144, 93824992235576, 18446744071973109760, 18446726466031976448, 140737354130144, 140737353943588, 140737353067168, 
                  140737488343808, 1}}}}}
        old = 0x0
#7  0x00007ffff7fcd5ea in _dl_map_object_deps (map=map@entry=0x7ffff7ffe2e0, preloads=preloads@entry=0x0, npreloads=<optimized out>, trace_mode=<optimized out>, open_mode=open_mode@entry=0) at ./elf/dl-deps.c:232
        dep = <optimized out>
        err = <optimized out>
        strtab = 0x7ffff3e8cde0 ""
        args = {map = 0x7ffff7fc3330, trace_mode = 0, open_mode = 0, strtab = 0x7ffff3e8cde0 "", name = 0x7ffff4042d93 "libLLVM-15-rust-1.66.0-stable.so", aux = 0x7ffff7fc3910}
        orig = 0x7fffffffcda0
        d = 0x7ffff7efaaa0
        l = <optimized out>
        needed = 0x7fffffffced0
        nneeded = 1
        known = <optimized out>
        runp = 0x7fffffffcda0
        tail = 0x7fffffffcd00
        nlist = 7
        i = <optimized out>
        name = <optimized out>
        errno_saved = <optimized out>
        errno_reason = 0
        exception = {objname = 0x0, errstring = 0x0, message_buffer = 0x0}
        needed_space = {data = 0x7fffffffced0, length = 1024, __space = {__align = {__max_align_ll = 140737353890064, __max_align_ld = 0}, __c = "\020\071\374\367\377\177", '\000' <repeats 530 times>...}}
        __PRETTY_FUNCTION__ = "_dl_map_object_deps"
        old_l_initfini = <optimized out>
        l_initfini = <optimized out>
        map_index = <optimized out>
        l_reldeps = <optimized out>
#8  0x00007ffff7fe88ea in dl_main (phdr=<optimized out>, phnum=<optimized out>, user_entry=<optimized out>, auxv=<optimized out>) at ./elf/rtld.c:1982
        start = 9860954108152
        main_map = <optimized out>
        file_size = 140737353912872
        file = <optimized out>
        i = <optimized out>
        rtld_is_main = <optimized out>
        tcbp = 0x0
        state = {audit_list = {audit_strings = {0x0 <repeats 13 times>, 0x555555554040 "\006", 0x38 <error: Cannot access memory at address 0x38>, 0xc <error: Cannot access memory at address 0xc>}, length = 0, current_index = 0, current_tail = 0x0, fname = "u\351VUUU\000\000\000\000\000\000\000\000\000\000\350\003\000\000\000\000\000\000\350\003\000\000\000\000\000\000\350\003\000\000\000\000\000\000\377\265\360", '\000' <repeats 13 times>, "\305\000\000\000\000\000\000\000\f\000\376\367\377\177\000\000\177\003\000\000\000\000\000\000\000\000\303\000\001", '\000' <repeats 14 times>, "\001\003\000\000\000=\000\000\000\024\000\000\000\000\000\004\000\000\000\000\000\210\325\377\377\377\177\000\000\000\200\000\000\000\000\000\000\200\325\377\377\377\177\000\000\000\000@\000\000\000\000\000@\000\000\000\000\000\000\000\323\t\376\367\377\177", '\000' <repeats 11 times>, "\b\000\000\000\000\000\000\000\000\004\000\000\000\000\000\000\000\020\000\000\000\000\000\000"...}, library_path = 0x0, library_path_source = 0x0, preloadlist = 0x0, preloadarg = 0x0, glibc_hwcaps_prepend = 0x0, glibc_hwcaps_mask = 0x0, mode = rtld_mode_normal, mode_trace_program = false, any_debug = false, version_info = false}
        ld_so_name = <optimized out>
        __PRETTY_FUNCTION__ = "dl_main"
        has_interp = <optimized out>
        first_preload = <optimized out>
        r = <optimized out>
        rtld_ehdr = <optimized out>
        rtld_phdr = <optimized out>
        cnt = <optimized out>
        need_security_init = true
        count_modids = 1
        preloads = 0x0
        npreloads = <optimized out>
        preload_file = "/etc/ld.so.preload"
        rtld_multiple_ref = <optimized out>
        was_tls_init_tp_called = <optimized out>
        consider_profiling = <optimized out>
        start = <optimized out>
#9  0x00007ffff7fe519f in _dl_sysdep_start (start_argptr=start_argptr@entry=0x7fffffffd6c0, dl_main=dl_main@entry=0x7ffff7fe6e10 <dl_main>) at ../sysdeps/unix/sysv/linux/dl-sysdep.c:140
        dl_main_args = {phdr = 0x555555554040, phnum = 12, user_entry = 93824992340341}
#10 0x00007ffff7fe6b1c in _dl_start_final (arg=0x7fffffffd6c0) at ./elf/rtld.c:497
        start_addr = <optimized out>
        start_addr = <optimized out>
        rtld_total_time = <optimized out>
#11 _dl_start (arg=<optimized out>) at ./elf/rtld.c:584
No locals.
#12 0x00007ffff7fe59c8 in _start () from /lib64/ld-linux-x86-64.so.2
        TD_SLEEP = TD_SLEEP
        TD_CREATE = TD_CREATE
        _URC_FATAL_PHASE1_ERROR = _URC_FATAL_PHASE1_ERROR
        TD_CATCHSIG = TD_CATCHSIG
        cet_permissive = cet_permissive
        TD_LOCK_TRY = TD_LOCK_TRY
        RSEQ_CS_FLAG_NO_RESTART_ON_PREEMPT_BIT = RSEQ_CS_FLAG_NO_RESTART_ON_PREEMPT_BIT
        PREFERRED_FEATURE_INDEX_1 = PREFERRED_FEATURE_INDEX_1
        PREFERRED_FEATURE_INDEX_MAX = PREFERRED_FEATURE_INDEX_MAX
        arch_kind_unknown = arch_kind_unknown
        TD_SWITCHFROM = TD_SWITCHFROM
        cache_extension_tag_generator = cache_extension_tag_generator
        cache_extension_tag_glibc_hwcaps = cache_extension_tag_glibc_hwcaps
        _URC_INSTALL_CONTEXT = _URC_INSTALL_CONTEXT
        TD_DEATH = TD_DEATH
        RT_CONSISTENT = RT_CONSISTENT
        LA_ACT_CONSISTENT = LA_ACT_CONSISTENT
        rtld_mode_verify = rtld_mode_verify
        TD_MAX_EVENT_NUM = TD_TIMEOUT
        RT_DELETE = RT_DELETE
        RSEQ_CS_FLAG_NO_RESTART_ON_MIGRATE_BIT = RSEQ_CS_FLAG_NO_RESTART_ON_MIGRATE_BIT
        relocate_time = 0
        DL_LOOKUP_ADD_DEPENDENCY = DL_LOOKUP_ADD_DEPENDENCY
        TD_READY = TD_READY
        _bitindex_arch_Slow_SSE4_2 = _bitindex_arch_Slow_SSE4_2
        rtld_mode_help = rtld_mode_help
        cpuid_register_index_eax = cpuid_register_index_eax
        CPUID_INDEX_1 = CPUID_INDEX_1
        CPUID_INDEX_7 = CPUID_INDEX_7
        CPUID_INDEX_80000001 = CPUID_INDEX_80000001
        CPUID_INDEX_D_ECX_1 = CPUID_INDEX_D_ECX_1
        CPUID_INDEX_80000007 = CPUID_INDEX_80000007
        CPUID_INDEX_80000008 = CPUID_INDEX_80000008
        CPUID_INDEX_7_ECX_1 = CPUID_INDEX_7_ECX_1
        CPUID_INDEX_19 = CPUID_INDEX_19
        CPUID_INDEX_14_ECX_0 = CPUID_INDEX_14_ECX_0
        CPUID_INDEX_MAX = CPUID_INDEX_MAX
        dso_sort_algorithm_original = dso_sort_algorithm_original
        TD_CONCURRENCY = TD_CONCURRENCY
        lt_executable = lt_executable
        cpuid_register_index_ebx = cpuid_register_index_ebx
        _bitindex_arch_I686 = _bitindex_arch_I686
        cache_extension_count = cache_extension_count
        PTHREAD_MUTEX_TIMED_NP = PTHREAD_MUTEX_TIMED_NP
        PTHREAD_MUTEX_RECURSIVE_NP = PTHREAD_MUTEX_RECURSIVE_NP
        PTHREAD_MUTEX_ERRORCHECK_NP = PTHREAD_MUTEX_ERRORCHECK_NP
        PTHREAD_MUTEX_ADAPTIVE_NP = PTHREAD_MUTEX_ADAPTIVE_NP
        PTHREAD_MUTEX_NORMAL = PTHREAD_MUTEX_TIMED_NP
        PTHREAD_MUTEX_RECURSIVE = PTHREAD_MUTEX_RECURSIVE_NP
        PTHREAD_MUTEX_ERRORCHECK = PTHREAD_MUTEX_ERRORCHECK_NP
        PTHREAD_MUTEX_DEFAULT = PTHREAD_MUTEX_TIMED_NP
        PTHREAD_MUTEX_FAST_NP = PTHREAD_MUTEX_TIMED_NP
        TD_REAP = TD_REAP
        DL_LOOKUP_RETURN_NEWEST = DL_LOOKUP_RETURN_NEWEST
        _URC_HANDLER_FOUND = _URC_HANDLER_FOUND
        cpuid_register_index_ecx = cpuid_register_index_ecx
        _bitindex_arch_Avoid_Short_Distance_REP_MOVSB = _bitindex_arch_Avoid_Short_Distance_REP_MOVSB
        _bitindex_arch_Prefer_FSRM = _bitindex_arch_Prefer_FSRM
        lc_property_unknown = lc_property_unknown
        _bitindex_arch_Fast_Unaligned_Load = _bitindex_arch_Fast_Unaligned_Load
        lt_library = lt_library
        cpuid_register_index_edx = cpuid_register_index_edx
        rtld_mode_list_diagnostics = rtld_mode_list_diagnostics
        start_time = 9860951681620
        _URC_NO_REASON = _URC_NO_REASON
        _bitindex_arch_Prefer_PMINUB_for_stringop = _bitindex_arch_Prefer_PMINUB_for_stringop
        arch_kind_other = arch_kind_other
        rtld_mode_list = rtld_mode_list
        _dl_rtld_libname = {name = 0x5555555542e0 "/lib64/ld-linux-x86-64.so.2", next = 0x7ffff7ffe230 <newname>, dont_free = 0}
        TD_IDLE = TD_IDLE
        unknown = unknown
        _URC_FATAL_PHASE2_ERROR = _URC_FATAL_PHASE2_ERROR
        cet_elf_property = cet_elf_property
        RT_ADD = RT_ADD
        _bitindex_arch_Fast_Rep_String = _bitindex_arch_Fast_Rep_String
        _bitindex_arch_MathVec_Prefer_No_AVX512 = _bitindex_arch_MathVec_Prefer_No_AVX512
        _bitindex_arch_Fast_Copy_Backward = _bitindex_arch_Fast_Copy_Backward
        _bitindex_arch_AVX_Fast_Unaligned_Load = _bitindex_arch_AVX_Fast_Unaligned_Load
        existing = existing
        _URC_NORMAL_STOP = _URC_NORMAL_STOP
        lc_property_none = lc_property_none
        nonexisting = nonexisting
        load_time = 0
        TD_PREEMPT = TD_PREEMPT
        TD_TIMEOUT = TD_TIMEOUT
        TD_ALL_EVENTS = TD_ALL_EVENTS
        _URC_END_OF_STACK = _URC_END_OF_STACK
        _bitindex_arch_Prefer_No_AVX512 = _bitindex_arch_Prefer_No_AVX512
        arch_kind_intel = arch_kind_intel
        rtld_mode_trace = rtld_mode_trace
        rtld_mode_list_tunables = rtld_mode_list_tunables
        _bitindex_arch_Prefer_ERMS = _bitindex_arch_Prefer_ERMS
        cet_always_on = cet_always_on
        dso_sort_algorithm_dfs = dso_sort_algorithm_dfs
        LA_ACT_DELETE = LA_ACT_DELETE
        TD_SWITCHTO = TD_SWITCHTO
        _bitindex_arch_Slow_BSF = _bitindex_arch_Slow_BSF
        arch_kind_zhaoxin = arch_kind_zhaoxin
        cet_always_off = cet_always_off
        arch_kind_amd = arch_kind_amd
        _URC_FOREIGN_EXCEPTION_CAUGHT = _URC_FOREIGN_EXCEPTION_CAUGHT
        _bitindex_arch_Prefer_No_VZEROUPPER = _bitindex_arch_Prefer_No_VZEROUPPER
        TD_EVENT_NONE = TD_ALL_EVENTS
        TD_EVENTS_ENABLE = TD_EVENTS_ENABLE
        rtld_mode_normal = rtld_mode_normal
        TD_MIN_EVENT_NUM = TD_READY
        lc_property_valid = lc_property_valid
        LA_ACT_ADD = LA_ACT_ADD
        TD_PRI_INHERIT = TD_PRI_INHERIT
        _bitindex_arch_Fast_Unaligned_Copy = _bitindex_arch_Fast_Unaligned_Copy
        _URC_CONTINUE_UNWIND = _URC_CONTINUE_UNWIND
        DL_LOOKUP_FOR_RELOCATE = DL_LOOKUP_FOR_RELOCATE
        lt_loaded = lt_loaded
        DL_LOOKUP_GSCOPE_LOCK = DL_LOOKUP_GSCOPE_LOCK
        _dl_rtld_libname2 = {name = 0x0, next = 0x0, dont_free = 0}
        RSEQ_CS_FLAG_NO_RESTART_ON_SIGNAL_BIT = RSEQ_CS_FLAG_NO_RESTART_ON_SIGNAL_BIT
        _bitindex_arch_I586 = _bitindex_arch_I586
        tls_init_tp_called = false
        __GI__dl_argv = 0x7fffffffd6c8
        _rtld_global_ro = {_dl_debug_mask = 0, _dl_platform = 0x7ffff7ff317c "haswell", _dl_platformlen = 7, _dl_pagesize = 4096, _dl_minsigstacksize = 1776, _dl_inhibit_cache = 0, _dl_initial_searchlist = {r_list = 0x0, r_nlist = 0}, _dl_clktck = 100, _dl_verbose = 0, _dl_debug_fd = 2, _dl_lazy = 1, _dl_bind_not = 0, _dl_dynamic_weak = 0, _dl_fpu_control = 895, _dl_hwcap = 2, _dl_auxv = 0x7fffffffd930, _dl_x86_cpu_features = {basic = {kind = arch_kind_intel, max_cpuid = 20, family = 6, model = 61, stepping = 4}, features = {{{cpuid_array = {198356, 51382272, 2147154879, 3219913727}, cpuid = {eax = 198356, ebx = 51382272, ecx = 2147154879, edx = 3219913727}}, {active_array = {0, 0, 2128097795, 394821904}, active = {eax = 0, ebx = 0, ecx = 2128097795, edx = 394821904}}}, {{cpuid_array = {0, 35399595, 0, 2617247232}, cpuid = {eax = 0, ebx = 35399595, ecx = 0, edx = 2617247232}}, {active_array = {0, 787240, 0, 0}, active = {eax = 0, ebx = 787240, ecx = 0, edx = 0}}}, {{cpuid_array = {0, 0, 289, 739248128}, cpuid = {eax = 0, ebx = 0, ecx = 289, edx = 739248128}}, {active_array = {0, 0, 289, 134217728}, active = {eax = 0, ebx = 0, ecx = 289, edx = 134217728}}}, {{cpuid_array = {1, 0, 0, 0}, cpuid = {eax = 1, ebx = 0, ecx = 0, edx = 0}}, {active_array = {1, 0, 0, 0}, active = {eax = 1, ebx = 0, ecx = 0, edx = 0}}}, {{cpuid_array = {0, 0, 0, 256}, cpuid = {eax = 0, ebx = 0, ecx = 0, edx = 256}}, {active_array = {0, 0, 0, 0}, active = {eax = 0, ebx = 0, ecx = 0, edx = 0}}}, {{cpuid_array = {12327, 0, 0, 0}, cpuid = {eax = 12327, ebx = 0, ecx = 0, edx = 0}}, {active_array = {0, 0, 0, 0}, active = {eax = 0, ebx = 0, ecx = 0, edx = 0}}}, {{cpuid_array = {0, 0, 0, 0}, cpuid = {eax = 0, ebx = 0, ecx = 0, edx = 0}}, {active_array = {0, 0, 0, 0}, active = {eax = 0, ebx = 0, ecx = 0, edx = 0}}}, {{cpuid_array = {0, 0, 0, 0}, cpuid = {eax = 0, ebx = 0, ecx = 0, edx = 0}}, {active_array = {0, 0, 0, 0}, active = {eax = 0, ebx = 0, ecx = 0, edx = 0}}}, {{cpuid_array = {0, 1, 1, 0}, cpuid = {eax = 0, ebx = 1, ecx = 1, edx = 0}}, {active_array = {0, 0, 0, 0}, active = {eax = 0, ebx = 0, ecx = 0, edx = 0}}}}, preferred = {4857}, isa_1 = 7, xsave_state_size = 896, xsave_state_full_size = 896, data_cache_size = 32768, shared_cache_size = 1048576, non_temporal_threshold = 786432, rep_movsb_threshold = 8192, rep_movsb_stop_threshold = 786432, rep_stosb_threshold = 2048, level1_icache_size = 32768, level1_icache_linesize = 64, level1_dcache_size = 32768, level1_dcache_assoc = 8, level1_dcache_linesize = 64, level2_cache_size = 262144, level2_cache_assoc = 8, level2_cache_linesize = 64, level3_cache_size = 4194304, level3_cache_assoc = 16, level3_cache_linesize = 64, level4_cache_size = 0}, _dl_x86_hwcap_flags = {"sse2\000\000\000\000", "x86_64\000\000", "avx512_1"}, _dl_x86_platforms = {"i586\000\000\000\000", "i686\000\000\000\000", "haswell\000", "xeon_phi"}, _dl_inhibit_rpath = 0x0, _dl_origin_path = 0x0, _dl_tls_static_size = 0, _dl_tls_static_align = 0, _dl_tls_static_surplus = 0, _dl_profile = 0x0, _dl_profile_output = 0x7ffff7ff1de0 "/var/tmp", _dl_init_all_dirs = 0x0, _dl_sysinfo_dso = 0x7ffff7fc9000, _dl_sysinfo_map = 0x7ffff7ffe8b0, _dl_vdso_clock_gettime64 = 0x7ffff7fc9960 <clock_gettime>, _dl_vdso_gettimeofday = 0x7ffff7fc9780 <gettimeofday>, _dl_vdso_time = 0x7ffff7fc9930 <time>, _dl_vdso_getcpu = 0x7ffff7fc9c20 <getcpu>, _dl_vdso_clock_getres_time64 = 0x7ffff7fc9bc0 <clock_getres>, _dl_hwcap2 = 2, _dl_dso_sort_algo = dso_sort_algorithm_dfs, _dl_debug_printf = 0x7ffff7fd7cc0 <_dl_debug_printf>, _dl_mcount = 0x7ffff7fd87f0 <__GI__dl_mcount>, _dl_lookup_symbol_x = 0x7ffff7fd4a10 <_dl_lookup_symbol_x>, _dl_open = 0x7ffff7fd6600 <_dl_open>, _dl_close = 0x7ffff7fcd010 <_dl_close>, _dl_catch_error = 0x7ffff7fe3370 <_rtld_catch_error>, _dl_error_free = 0x7ffff7fce1b0 <_dl_error_free>, _dl_tls_get_addr_soft = 0x7ffff7fdcaa0 <_dl_tls_get_addr_soft>, _dl_libc_freeres = 0x7ffff7fe3fc0 <__rtld_libc_freeres>, _dl_find_object = 0x7ffff7fceae0 <__GI__dl_find_object>, _dl_dlfcn_hook = 0x0, _dl_audit = 0x0, _dl_naudit = 0}
        _dl_argc = 2
        __pointer_chk_guard_local = 0
        _rtld_global = {_dl_ns = {{_ns_loaded = 0x7ffff7ffe2e0, _ns_nloaded = 9, _ns_main_searchlist = 0x0, _ns_global_scope_alloc = 0, _ns_global_scope_pending_adds = 0, libc_map = 0x7ffff7f9b000, _ns_unique_sym_table = {lock = {mutex = {__data = {__lock = 0, __count = 0, __owner = 0, __nusers = 0, __kind = 1, __spins = 0, __elision = 0, __list = {__prev = 0x0, __next = 0x0}}, __size = '\000' <repeats 16 times>, "\001", '\000' <repeats 22 times>, __align = 0}}, entries = 0x0, size = 0, n_elements = 0, free = 0x0}, _ns_debug = {base = {r_version = 0, r_map = 0x0, r_brk = 0, r_state = RT_CONSISTENT, r_ldbase = 0}, r_next = 0x0}}, {_ns_loaded = 0x0, _ns_nloaded = 0, _ns_main_searchlist = 0x0, _ns_global_scope_alloc = 0, _ns_global_scope_pending_adds = 0, libc_map = 0x0, _ns_unique_sym_table = {lock = {mutex = {__data = {__lock = 0, __count = 0, __owner = 0, __nusers = 0, __kind = 0, __spins = 0, __elision = 0, __list = {__prev = 0x0, __next = 0x0}}, __size = '\000' <repeats 39 times>, __align = 0}}, entries = 0x0, size = 0, n_elements = 0, free = 0x0}, _ns_debug = {base = {r_version = 0, r_map = 0x0, r_brk = 0, r_state = RT_CONSISTENT, r_ldbase = 0}, r_next = 0x0}} <repeats 15 times>}, _dl_nns = 1, _dl_load_lock = {mutex = {__data = {__lock = 0, __count = 0, __owner = 0, __nusers = 0, __kind = 1, __spins = 0, __elision = 0, __list = {__prev = 0x0, __next = 0x0}}, __size = '\000' <repeats 16 times>, "\001", '\000' <repeats 22 times>, __align = 0}}, _dl_load_write_lock = {mutex = {__data = {__lock = 0, __count = 0, __owner = 0, __nusers = 0, __kind = 1, __spins = 0, __elision = 0, __list = {__prev = 0x0, __next = 0x0}}, __size = '\000' <repeats 16 times>, "\001", '\000' <repeats 22 times>, __align = 0}}, _dl_load_tls_lock = {mutex = {__data = {__lock = 0, __count = 0, __owner = 0, __nusers = 0, __kind = 1, __spins = 0, __elision = 0, __list = {__prev = 0x0, __next = 0x0}}, __size = '\000' <repeats 16 times>, "\001", '\000' <repeats 22 times>, __align = 0}}, _dl_load_adds = 9, _dl_initfirst = 0x0, _dl_profile_map = 0x0, _dl_num_relocations = 5, _dl_num_cache_relocations = 0, _dl_all_dirs = 0x7ffff7f9b570, _dl_rtld_map = {l_addr = 140737353920512, l_name = 0x5555555542e0 "/lib64/ld-linux-x86-64.so.2", l_ld = 0x7ffff7ffce20, l_next = 0x7ffff7ffe8b0, l_prev = 0x7ffff7ffe2e0, l_real = 0x7ffff7ffdad0 <_rtld_global+2736>, l_ns = 0, l_libname = 0x7ffff7ffe280 <_dl_rtld_libname>, l_info = {0x0, 0x0, 0x7ffff7ffcea0, 0x7ffff7ffce90, 0x7ffff7ffce30, 0x7ffff7ffce50, 0x7ffff7ffce60, 0x7ffff7ffced0, 0x7ffff7ffcee0, 0x7ffff7ffcef0, 0x7ffff7ffce70, 0x7ffff7ffce80, 0x0, 0x0, 0x7ffff7ffce20, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7ffff7ffceb0, 0x0, 0x0, 0x7ffff7ffcec0, 0x0 <repeats 11 times>, 0x7ffff7ffcf40, 0x7ffff7ffcf30, 0x7ffff7ffcf50, 0x0, 0x0, 0x7ffff7ffcf10, 0x7ffff7ffcf00, 0x0 <repeats 11 times>, 0x7ffff7ffcf20, 0x0 <repeats 25 times>, 0x7ffff7ffce40}, l_phdr = 0x7ffff7fcb040, l_entry = 0, l_phnum = 9, l_ldnum = 0, l_searchlist = {r_list = 0x0, r_nlist = 0}, l_symbolic_searchlist = {r_list = 0x0, r_nlist = 0}, l_loader = 0x0, l_versions = 0x0, l_nversions = 0, l_nbuckets = 37, l_gnu_bitmask_idxbits = 3, l_gnu_shift = 8, l_gnu_bitmask = 0x7ffff7fcb3b0, {l_gnu_buckets = 0x7ffff7fcb3d0, l_chain = 0x7ffff7fcb3d0}, {l_gnu_chain_zero = 0x7ffff7fcb460, l_buckets = 0x7ffff7fcb460}, l_direct_opencount = 0, l_type = lt_library, l_dt_relr_ref = 0, l_relocated = 1, l_init_called = 0, l_global = 0, l_reserved = 0, l_main_map = 0, l_visited = 0, l_map_used = 0, l_map_done = 0, l_phdr_allocated = 0, l_soname_added = 0, l_faked = 0, l_need_tls_init = 0, l_auditing = 0, l_audit_any_plt = 0, l_removed = 0, l_contiguous = 0, l_free_initfini = 0, l_ld_readonly = 0, l_find_object_processed = 0, l_nodelete_active = false, l_nodelete_pending = false, l_property = lc_property_unknown, l_x86_feature_1_and = 0, l_x86_isa_1_needed = 0, l_1_needed = 0, l_rpath_dirs = {dirs = 0x0, malloced = 0}, l_reloc_result = 0x0, l_versyms = 0x0, l_origin = 0x0, l_map_start = 140737353920512, l_map_end = 140737354130136, l_text_end = 140737354075857, l_scope_mem = {0x0, 0x0, 0x0, 0x0}, l_scope_max = 0, l_scope = 0x0, l_local_scope = {0x0, 0x0}, l_file_id = {dev = 0, ino = 0}, l_runpath_dirs = {dirs = 0x0, malloced = 0}, l_initfini = 0x0, l_reldeps = 0x0, l_reldepsmax = 0, l_used = 0, l_feature_1 = 0, l_flags_1 = 0, l_flags = 0, l_idx = 0, l_mach = {plt = 0, gotplt = 0, tlsdesc_table = 0x0}, l_lookup_cache = {sym = 0x0, type_class = 0, value = 0x0, ret = 0x0}, l_tls_initimage = 0x0, l_tls_initimage_size = 0, l_tls_blocksize = 0, l_tls_align = 0, l_tls_firstbyte_offset = 0, l_tls_offset = 0, l_tls_modid = 0, l_tls_dtor_count = 0, l_relro_addr = 199136, l_relro_size = 5664, l_serial = 0}, _dl_rtld_auditstate = {{cookie = 0, bindflags = 0} <repeats 16 times>}, _dl_x86_feature_1 = 0, _dl_x86_feature_control = {ibt = cet_elf_property, shstk = cet_elf_property}, _dl_stack_flags = 6, _dl_tls_dtv_gaps = false, _dl_tls_max_dtv_idx = 4, _dl_tls_dtv_slotinfo_list = 0x0, _dl_tls_static_nelem = 0, _dl_tls_static_used = 0, _dl_tls_static_optional = 0, _dl_initial_dtv = 0x0, _dl_tls_generation = 0, _dl_scope_free_list = 0x0, _dl_stack_used = {next = 0x7ffff7ffe0c0 <_rtld_global+4256>, prev = 0x7ffff7ffe0c0 <_rtld_global+4256>}, _dl_stack_user = {next = 0x7ffff7ffe0d0 <_rtld_global+4272>, prev = 0x7ffff7ffe0d0 <_rtld_global+4272>}, _dl_stack_cache = {next = 0x7ffff7ffe0e0 <_rtld_global+4288>, prev = 0x7ffff7ffe0e0 <_rtld_global+4288>}, _dl_stack_cache_actsize = 0, _dl_in_flight_stack = 0, _dl_stack_cache_lock = 0}
#13 0x0000000000000002 in ?? ()
No symbol table info available.
#14 0x00007fffffffdaa2 in ?? ()
No symbol table info available.
#15 0x00007fffffffdaef in ?? ()
No symbol table info available.
#16 0x0000000000000000 in ?? ()
No symbol table info available.

[Noratrieb]

Can you bisect this using https://github.com/rust-lang/cargo-bisect-rustc?

[teohhanhui]

Clearing the executable stack flag:

execstack -c libLLVM-15-rust-1.66.0-stable.so

seems to work (at least cargo build is working correctly as before for the project I'm working on...)

[draeath]

Ran into this today on OpenSuse MicroOS.

@teohhanhui that workaround works, though I don't understand the ramifications of it.

[cgzones]

Probably the library was build on a non-GNU platform (Windows?), so the linker did not add a GNU_STACK program header. (The absence of that header is treated the same as explicitly specifying an executable stack.)

[teohhanhui]

Unfortunately, applying the same workaround on libLLVM-15-rust-1.66.1-stable.so didn't do the trick...

> cargo clippy
error: process didn't exit successfully: `rustc -vV` (exit status: 127)
--- stderr
/home/teohhanhui/.rustup/toolchains/stable-x86_64-unknown-linux-gnu/bin/rustc: error while loading shared libraries: libLLVM-15-rust-1.66.1-stable.so: cannot enable executable stack as shared object requires: Permission denied

The entry in audit.log looks like this:

type=AVC msg=audit(1673522752.106:305): avc:  denied  { execstack } for  pid=23835 comm="rustc" scontext=unconfined_u:unconfined_r:unconfined_t:s0-s0:c0.c1023 tcontext=unconfined_u:unconfined_r:unconfined_t:s0-s0:c0.c1023 tclass=process permissive=0

Curiously, this works:

> rustc -vV
rustc 1.66.1 (90743e729 2023-01-10)
binary: rustc
commit-hash: 90743e7298aca107ddaa0c202a4d3604e29bfeb6
commit-date: 2023-01-10
host: x86_64-unknown-linux-gnu
release: 1.66.1
LLVM version: 15.0.2

EDIT: Never mind, I forgot to do a cargo clean... 🤣