openssl: Undefined symbol ___atomic_is_lock_free for armv7

Using the same script I used to compile OpenSSL 1.1.1L I can no longer compile for armv7 for iOS with OpenSSL 3.0.0. I can still compile for iOS on arm64 and x64.

Here’s what I’m using to reproduce the problem:

export CFLAGS='-arch armv7s -pipe -Os -gdwarf-2 -isysroot /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS14.5.sdk -mios-version-min=9.3 -miphoneos-version-min=9.3
export LDFLAGS='-arch armv7s -isysroot /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS14.5.sdk'
./configure -shared -no-ui-console -no-tests -no-stdio ios-xcrun
make -j 8

Here’s the error message:

Undefined symbols for architecture armv7:
  "___atomic_is_lock_free", referenced from:
      _CRYPTO_atomic_or in libcrypto-shlib-threads_pthread.o
      _CRYPTO_atomic_load in libcrypto-shlib-threads_pthread.o
ld: symbol(s) not found for architecture armv7

Here’s the configuration data:

Command line (with current working directory = .):

    perl ./Configure -shared -no-ui-console -no-tests -no-stdio ios-xcrun

Perl information:

    perl
    5.30.2 for darwin-thread-multi-2level

Enabled features:

    aria
    asm
    autoalginit
    autoerrinit
    autoload-config
    bf
    blake2
    bulk
    cached-fetch
    camellia
    cast
    chacha
    cmac
    cmp
    cms
    comp
    ct
    deprecated
    des
    dgram
    dh
    dsa
    dso
    dtls
    ec
    ec2m
    ecdh
    ecdsa
    err
    filenames
    gost
    idea
    legacy
    makedepend
    md4
    mdc2
    module
    multiblock
    nextprotoneg
    ocb
    ocsp
    pic
    pinshared
    poly1305
    posix-io
    psk
    rc2
    rc4
    rdrand
    rfc3779
    rmd160
    scrypt
    secure-memory
    seed
    shared
    siphash
    siv
    sm2
    sm3
    sm4
    sock
    srp
    srtp
    sse2
    ssl
    ssl-trace
    static-engine
    threads
    tls
    ts
    whirlpool
    tls1
    tls1-method
    tls1_1
    tls1_1-method
    tls1_2
    tls1_2-method
    tls1_3
    dtls1
    dtls1-method
    dtls1_2
    dtls1_2-method

Disabled features:

    acvp-tests          [cascade]        OPENSSL_NO_ACVP_TESTS
    afalgeng            [cascade]        OPENSSL_NO_AFALGENG
    asan                [default]        OPENSSL_NO_ASAN
    async               [config]         OPENSSL_NO_ASYNC
    buildtest-c++       [default]        
    capieng             [cascade]        OPENSSL_NO_CAPIENG
    crypto-mdebug       [default]        OPENSSL_NO_CRYPTO_MDEBUG
    devcryptoeng        [default]        OPENSSL_NO_DEVCRYPTOENG
    dynamic-engine      [cascade]        
    ec_nistp_64_gcc_128 [default]        OPENSSL_NO_EC_NISTP_64_GCC_128
    egd                 [default]        OPENSSL_NO_EGD
    engine              [config]         OPENSSL_NO_ENGINE (skip engines, crypto/engine)
    external-tests      [default]        OPENSSL_NO_EXTERNAL_TESTS
    fips                [default]        
    fips-securitychecks [cascade]        OPENSSL_NO_FIPS_SECURITYCHECKS
    fuzz-afl            [default]        OPENSSL_NO_FUZZ_AFL
    fuzz-libfuzzer      [default]        OPENSSL_NO_FUZZ_LIBFUZZER
    ktls                [default]        OPENSSL_NO_KTLS
    loadereng           [cascade]        OPENSSL_NO_LOADERENG
    md2                 [default]        OPENSSL_NO_MD2 (skip crypto/md2)
    msan                [default]        OPENSSL_NO_MSAN
    padlockeng          [cascade]        OPENSSL_NO_PADLOCKENG
    rc5                 [default]        OPENSSL_NO_RC5 (skip crypto/rc5)
    sctp                [default]        OPENSSL_NO_SCTP
    stdio               [option]         OPENSSL_NO_STDIO
    tests               [option]         OPENSSL_NO_TESTS
    trace               [default]        OPENSSL_NO_TRACE
    ubsan               [default]        OPENSSL_NO_UBSAN
    ui-console          [option]         OPENSSL_NO_UI_CONSOLE
    unit-test           [default]        OPENSSL_NO_UNIT_TEST
    uplink              [no uplink_arch] OPENSSL_NO_UPLINK
    weak-ssl-ciphers    [default]        OPENSSL_NO_WEAK_SSL_CIPHERS
    zlib                [default]        
    zlib-dynamic        [default]        
    ssl3                [default]        OPENSSL_NO_SSL3
    ssl3-method         [default]        OPENSSL_NO_SSL3_METHOD

Config target attributes:

    AR => "ar",
    ARFLAGS => "qc",
    CC => "xcrun -sdk iphoneos cc",
    CFLAGS => "-O3",
    HASHBANGPERL => "/usr/bin/env perl",
    RANLIB => "ranlib -c",
    RC => "windres",
    asm_arch => "armv4",
    bn_ops => "BN_LLONG RC4_CHAR",
    build_file => "Makefile",
    build_scheme => [ "unified", "unix" ],
    cflags => "-arch armv7 -mios-version-min=6.0.0 -fno-common",
    cppflags => "-D_REENTRANT",
    defines => [ "OPENSSL_BUILDING_OPENSSL" ],
    disable => [ "engine", "async" ],
    dso_scheme => "dlfcn",
    enable => [  ],
    includes => [  ],
    lflags => "-Wl,-search_paths_first",
    lib_cflags => "",
    lib_cppflags => "",
    lib_defines => [  ],
    module_cflags => "-fPIC",
    module_cxxflags => undef,
    module_ldflags => "-bundle",
    perl_platform => "Unix",
    perlasm_scheme => "ios32",
    shared_cflag => "-fPIC",
    shared_defines => [  ],
    shared_extension => ".\$(SHLIB_VERSION_NUMBER).dylib",
    shared_ldflag => "-dynamiclib -current_version \$(SHLIB_VERSION_NUMBER) -compatibility_version \$(SHLIB_VERSION_NUMBER)",
    shared_rcflag => "",
    shared_sonameflag => "-install_name \$(libdir)/",
    shared_target => "darwin-shared",
    sys_id => "iOS",
    thread_defines => [  ],
    thread_scheme => "pthreads",
    unistd => "<unistd.h>",

Recorded environment:

    AR = 
    ARFLAGS = 
    AS = 
    ASFLAGS = 
    BUILDFILE = 
    CC = /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang
    CFLAGS = -arch armv7s -pipe -Os -gdwarf-2 -isysroot /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS14.5.sdk -mios-version-min=9.3 -miphoneos-version-min=9.3
    CPP = 
    CPPDEFINES = 
    CPPFLAGS = 
    CPPINCLUDES = 
    CROSS_COMPILE = 
    CXX = 
    CXXFLAGS = 
    HASHBANGPERL = 
    LD = 
    LDFLAGS = -arch armv7s -isysroot /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS14.5.sdk
    LDLIBS = 
    MT = 
    MTFLAGS = 
    OPENSSL_LOCAL_CONFIG_DIR = 
    PERL = 
    RANLIB = 
    RC = 
    RCFLAGS = 
    RM = 
    WINDRES = 
    __CNF_CFLAGS = 
    __CNF_CPPDEFINES = 
    __CNF_CPPFLAGS = 
    __CNF_CPPINCLUDES = 
    __CNF_CXXFLAGS = 
    __CNF_LDFLAGS = 
    __CNF_LDLIBS = 

Makevars:

    AR              = ar
    ARFLAGS         = qc
    CC              = /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang
    CFLAGS          = -arch armv7s -pipe -Os -gdwarf-2 -isysroot /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS14.5.sdk -mios-version-min=9.3 -miphoneos-version-min=9.3
    CPPDEFINES      = 
    CPPFLAGS        = 
    CPPINCLUDES     = 
    CXXFLAGS        = 
    HASHBANGPERL    = /usr/bin/env perl
    LDFLAGS         = -arch armv7s -isysroot /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS14.5.sdk
    LDLIBS          = 
    PERL            = perl
    RANLIB          = ranlib -c
    RC              = windres
    RCFLAGS         = 

NOTE: These variables only represent the configuration view.  The build file
template may have processed these variables further, please have a look at the
build file for more exact data:
    Makefile

build file:

    Makefile

build file templates:

    Configurations/common0.tmpl
    Configurations/unix-Makefile.tmpl