ci: drop i686 builds, temporarily enable glibc backwards compatibility for most CI builds

.gitlab-ci.yml

@@ -173,13 +173,6 @@ x86_64-w64-mingw32:
   variables:
     HOST: x86_64-w64-mingw32
 
-i686-pc-linux-gnu:
-  extends:
-    - .build-depends-template
-    - .skip-in-fast-mode-template
-  variables:
-    HOST: i686-pc-linux-gnu
-
 x86_64-pc-linux-gnu-debug:
   extends: .build-depends-template
   variables:
@@ -219,24 +212,6 @@ win64-build:
   variables:
     BUILD_TARGET: win64
 
-linux32-build:
-  extends:
-    - .build-template
-    - .skip-in-fast-mode-template
-  needs:
-    - i686-pc-linux-gnu
-  variables:
-    BUILD_TARGET: linux32
-
-linux32_ubsan-build:
-  extends:
-    - .build-template
-    - .skip-in-fast-mode-template
-  needs:
-    - i686-pc-linux-gnu
-  variables:
-    BUILD_TARGET: linux32_ubsan
-
 linux64-build:
   extends: .build-template
   needs:
@@ -280,6 +255,15 @@ linux64_tsan-build:
   variables:
     BUILD_TARGET: linux64_tsan
 
+linux64_ubsan-build:
+  extends:
+    - .build-template
+    - .skip-in-fast-mode-template
+  needs:
+    - x86_64-pc-linux-gnu-debug
+  variables:
+    BUILD_TARGET: linux64_ubsan
+
 linux64_nowallet-build:
   extends:
     - .build-template
@@ -300,24 +284,6 @@ mac-build:
 
 ###
 
-linux32-test:
-  extends:
-    - .test-template
-    - .skip-in-fast-mode-template
-  needs:
-    - linux32-build
-  variables:
-    BUILD_TARGET: linux32
-
-linux32_ubsan-test:
-  extends:
-    - .test-template
-    - .skip-in-fast-mode-template
-  needs:
-    - linux32_ubsan-build
-  variables:
-    BUILD_TARGET: linux32_ubsan
-
 linux64-test:
   extends: .test-template
   needs:
@@ -342,3 +308,12 @@ linux64_tsan-test:
     - linux64_tsan-build
   variables:
     BUILD_TARGET: linux64_tsan
+
+linux64_ubsan-test:
+  extends:
+    - .test-template
+    - .skip-in-fast-mode-template
+  needs:
+    - linux64_ubsan-build
+  variables:
+    BUILD_TARGET: linux64_ubsan

.travis.yml

@@ -97,9 +97,6 @@ jobs:
     - <<: *builddepends
       name: depends-win64
       env: BUILD_TARGET=win64
-    - <<: *builddepends
-      name: depends-linux32
-      env: BUILD_TARGET=linux32
     - <<: *builddepends
       name: depends-linux64
       env: BUILD_TARGET=linux64
@@ -121,9 +118,6 @@ jobs:
     - <<: *buildsrc
       name: src-win64
       env: BUILD_TARGET=win64
-    - <<: *buildsrc
-      name: src-linux32
-      env: BUILD_TARGET=linux32
     - <<: *buildsrc
       name: src-linux64
       env: BUILD_TARGET=linux64
@@ -142,9 +136,6 @@ jobs:
     - <<: *runtests
       name: tests-win64
       env: BUILD_TARGET=win64
-    - <<: *runtests
-      name: tests-linux32
-      env: BUILD_TARGET=linux32
     - <<: *runtests
       name: tests-linux64
       env: BUILD_TARGET=linux64
@@ -233,11 +224,6 @@ after_success:
       env: >-
         FILE_ENV="./ci/test/00_setup_env_win64.sh"
 
-    - stage: test
-      name: '32-bit + dash  [GOAL: install]  [CentOS 7]  [GUI]'
-      env: >-
-        FILE_ENV="./ci/test/00_setup_env_i686_centos.sh"
-
     - stage: test
       name: 'x86_64 Linux  [GOAL: install]  [focal]  [uses qt5 dev package instead of depends Qt to speed up build and avoid timeout] [unsigned char]'
       env: >-

ci/dash/build_src.sh

@@ -55,4 +55,7 @@ cd dashcore-$BUILD_TARGET
 ./configure --cache-file=../config.cache $BITCOIN_CONFIG_ALL $BITCOIN_CONFIG || ( cat config.log && false)
 
 make $MAKEJOBS $GOAL || ( echo "Build failure. Verbose build follows." && make $GOAL V=1 ; false )
-make $MAKEJOBS -C src check-symbols
+
+if [ "$RUN_SYMBOL_TESTS" = "true" ]; then
+  make $MAKEJOBS -C src check-symbols
+fi

ci/dash/matrix.sh

@@ -18,14 +18,12 @@ if [ "$BUILD_TARGET" = "arm-linux" ]; then
   source ./ci/test/00_setup_env_arm.sh
 elif [ "$BUILD_TARGET" = "win64" ]; then
   source ./ci/test/00_setup_env_win64.sh
-elif [ "$BUILD_TARGET" = "linux32" ]; then
-  source ./ci/test/00_setup_env_i686_centos.sh
-elif [ "$BUILD_TARGET" = "linux32_ubsan" ]; then
-  source ./ci/test/00_setup_env_i686_ubsan.sh
 elif [ "$BUILD_TARGET" = "linux64" ]; then
   source ./ci/test/00_setup_env_native_qt5.sh
 elif [ "$BUILD_TARGET" = "linux64_tsan" ]; then
   source ./ci/test/00_setup_env_native_tsan.sh
+elif [ "$BUILD_TARGET" = "linux64_ubsan" ]; then
+  source ./ci/test/00_setup_env_native_ubsan.sh
 elif [ "$BUILD_TARGET" = "linux64_fuzz" ]; then
   source ./ci/test/00_setup_env_native_fuzz.sh
 elif [ "$BUILD_TARGET" = "linux64_cxx20" ]; then

ci/test/00_setup_env.sh

@@ -39,6 +39,7 @@ export USE_BUSY_BOX=${USE_BUSY_BOX:-false}
 export RUN_UNIT_TESTS=${RUN_UNIT_TESTS:-true}
 export RUN_INTEGRATION_TESTS=${RUN_INTEGRATION_TESTS:-true}
 export RUN_FUZZ_TESTS=${RUN_FUZZ_TESTS:-false}
+export RUN_SYMBOL_TESTS=${RUN_SYMBOL_TESTS:-true}
 export CONTAINER_NAME=${CONTAINER_NAME:-ci_unnamed}
 export DOCKER_NAME_TAG=${DOCKER_NAME_TAG:-ubuntu:focal}
 # Randomize test order.

ci/test/00_setup_env_arm.sh

@@ -26,4 +26,4 @@ export RUN_INTEGRATION_TESTS=false
 export GOAL="install"
 # -Wno-psabi is to disable ABI warnings: "note: parameter passing for argument of type ... changed in GCC 7.1"
 # This could be removed once the ABI change warning does not show up by default
-export BITCOIN_CONFIG="--enable-reduce-exports --enable-suppress-external-warnings --enable-werror CXXFLAGS=-Wno-psabi"
+export BITCOIN_CONFIG="--enable-glibc-back-compat --enable-reduce-exports --enable-suppress-external-warnings --enable-werror CXXFLAGS=-Wno-psabi"

ci/test/00_setup_env_native_cxx20.sh

@@ -13,5 +13,5 @@ export CPPFLAGS="-DDEBUG_LOCKORDER -DENABLE_DASH_DEBUG -DARENA_DEBUG"
 export PYZMQ=true
 export RUN_INTEGRATION_TESTS=false
 export GOAL="install"
-export BITCOIN_CONFIG="--enable-zmq --enable-reduce-exports --enable-crash-hooks --enable-c++20 --enable-suppress-external-warnings --enable-werror"
+export BITCOIN_CONFIG="--enable-glibc-back-compat --enable-zmq --enable-reduce-exports --enable-crash-hooks --enable-c++20 --enable-suppress-external-warnings --enable-werror"
 

ci/test/00_setup_env_native_fuzz.sh

@@ -16,4 +16,4 @@ export RUN_UNIT_TESTS=false
 export RUN_INTEGRATION_TESTS=false
 export RUN_FUZZ_TESTS=true
 export GOAL="install"
-export BITCOIN_CONFIG="--enable-zmq --disable-ccache --enable-fuzz --with-sanitizers=fuzzer,address,undefined --enable-c++17 CC=clang CXX=clang++"
+export BITCOIN_CONFIG="--enable-glibc-back-compat --enable-zmq --disable-ccache --enable-fuzz --with-sanitizers=fuzzer,address,undefined --enable-c++17 CC=clang CXX=clang++"

ci/test/00_setup_env_native_nowallet.sh

@@ -10,4 +10,4 @@ export CONTAINER_NAME=ci_native_nowallet
 export PACKAGES="python3-zmq"
 export DEP_OPTS="NO_WALLET=1"
 export GOAL="install"
-export BITCOIN_CONFIG="--enable-reduce-exports"
+export BITCOIN_CONFIG="--enable-glibc-back-compat --enable-reduce-exports"

ci/test/00_setup_env_native_qt5.sh

@@ -12,4 +12,4 @@ export DEP_OPTS="NO_UPNP=1 DEBUG=1"
 # TODO: we have few rpcs that aren't covered by any test, re-enable the line below once it's fixed
 # export TEST_RUNNER_EXTRA="--coverage --extended --exclude feature_pruning,feature_dbcrash"  # Run extended tests so that coverage does not fail, but exclude the very slow dbcrash
 export GOAL="install"
-export BITCOIN_CONFIG="--enable-zmq --enable-glibc-back-compat --enable-reduce-exports LDFLAGS=-static-libstdc++"
+export BITCOIN_CONFIG="--enable-glibc-back-compat --enable-zmq --enable-reduce-exports LDFLAGS=-static-libstdc++"

ci/test/00_setup_env_native_sqlite.sh

@@ -10,4 +10,4 @@ export CONTAINER_NAME=ci_native_sqlite
 export PACKAGES="python3-zmq qtbase5-dev qttools5-dev-tools libdbus-1-dev libharfbuzz-dev"
 export DEP_OPTS="NO_BDB=1 NO_UPNP=1 DEBUG=1"
 export GOAL="install"
-export BITCOIN_CONFIG="--enable-zmq --enable-glibc-back-compat --enable-reduce-exports --with-sqlite --without-bdb LDFLAGS=-static-libstdc++"
+export BITCOIN_CONFIG="--enable-glibc-back-compat --enable-zmq --enable-reduce-exports --with-sqlite --without-bdb LDFLAGS=-static-libstdc++"

ci/test/00_setup_env_native_tsan.sh

@@ -15,3 +15,4 @@ export BITCOIN_CONFIG="--enable-zmq --enable-reduce-exports --enable-crash-hooks
 export BITCOIN_CONFIG="${BITCOIN_CONFIG} CC=clang-15 CXX=clang++-15 CXXFLAGS=-Werror=thread-safety"
 export CPPFLAGS="-DDEBUG_LOCKORDER -DENABLE_DASH_DEBUG -DARENA_DEBUG"
 export PYZMQ=true
+export RUN_SYMBOL_TESTS=false

ci/test/00_setup_env_native_ubsan.sh

@@ -0,0 +1,15 @@
+#!/usr/bin/env bash
+#
+# Copyright (c) 2019 The Bitcoin Core developers
+# Distributed under the MIT software license, see the accompanying
+# file COPYING or http://www.opensource.org/licenses/mit-license.php.
+
+export LC_ALL=C.UTF-8
+
+export CONTAINER_NAME=ci_native_ubsan
+export PACKAGES="clang-8 llvm-8 python3-zmq qtbase5-dev qttools5-dev-tools libevent-dev bsdmainutils libboost-filesystem-dev libboost-test-dev libboost-thread-dev libdb5.3++-dev libminiupnpc-dev libzmq3-dev libqrencode-dev"
+export DEP_OPTS="NO_UPNP=1 DEBUG=1"
+export GOAL="install"
+export BITCOIN_CONFIG="--enable-zmq --enable-reduce-exports --enable-crash-hooks --with-sanitizers=undefined"
+export PYZMQ=true
+export RUN_SYMBOL_TESTS=false

configure.ac

@@ -779,6 +779,18 @@ case $host in
    *android*)
      dnl make sure android stays above linux for hosts like *linux-android*
      TARGET_OS=android
+     case $host in
+       *x86_64*)
+          ANDROID_ARCH=x86_64
+          ;;
+        *aarch64*)
+          ANDROID_ARCH=arm64-v8a
+          ;;
+        *armv7a*)
+          ANDROID_ARCH=armeabi-v7a
+          ;;
+        *) AC_MSG_ERROR("Could not determine Android arch") ;;
+      esac
      ;;
    *linux*)
      TARGET_OS=linux
@@ -857,6 +869,11 @@ AX_GCC_FUNC_ATTRIBUTE([dllimport])
 if test x$use_glibc_compat != xno; then
   AX_CHECK_LINK_FLAG([[-Wl,--wrap=__divmoddi4]], [COMPAT_LDFLAGS="$COMPAT_LDFLAGS -Wl,--wrap=__divmoddi4"])
   AX_CHECK_LINK_FLAG([[-Wl,--wrap=log2f]], [COMPAT_LDFLAGS="$COMPAT_LDFLAGS -Wl,--wrap=log2f"])
+  case $host in
+    powerpc64* | ppc64*)
+      AX_CHECK_LINK_FLAG([[-Wl,--no-tls-get-addr-optimize]], [COMPAT_LDFLAGS="$COMPAT_LDFLAGS -Wl,--no-tls-get-addr-optimize"])
+    ;;
+  esac
   AX_CHECK_LINK_FLAG([[-Wl,--wrap=log2]], [COMPAT_LDFLAGS="$COMPAT_LDFLAGS -Wl,--wrap=log2"])
   AX_CHECK_LINK_FLAG([[-Wl,--wrap=log]], [COMPAT_LDFLAGS="$COMPAT_LDFLAGS -Wl,--wrap=log"])
   AX_CHECK_LINK_FLAG([[-Wl,--wrap=pow]], [COMPAT_LDFLAGS="$COMPAT_LDFLAGS -Wl,--wrap=pow"])
@@ -1803,6 +1820,7 @@ AC_SUBST(HAVE_MM_PREFETCH)
 AC_SUBST(HAVE_STRONG_GETAUXVAL)
 AC_SUBST(HAVE_WEAK_GETAUXVAL)
 AC_SUBST(HAVE_GMTIME_R)
+AC_SUBST(ANDROID_ARCH)
 AC_CONFIG_FILES([Makefile src/Makefile doc/man/Makefile share/setup.nsi share/qt/Info.plist test/config.ini])
 AC_CONFIG_FILES([contrib/devtools/split-debug.sh],[chmod +x contrib/devtools/split-debug.sh])
 AM_COND_IF([HAVE_DOXYGEN], [AC_CONFIG_FILES([doc/Doxyfile])])

contrib/devtools/symbol-check.py

@@ -33,13 +33,19 @@
 # - libc version 2.28 (http://mirror.centos.org/centos/8-stream/AppStream/x86_64/os/Packages/)
 #
 # See https://gcc.gnu.org/onlinedocs/libstdc++/manual/abi.html for more info.
+#
+# For 32-bit systems the minimum libc version is 2.28 to embrace new fcntl{64} symbols.
+# It is safer than handling them in the glibc_compat.cpp due to their variadic arguments
+# with possible different sizes.
+# See: https://stackoverflow.com/a/58472959
+#
 
 MAX_VERSIONS = {
 'GCC':       (4,8,0),
 'GLIBC': {
-    pixie.EM_386:    (2,18),
+    pixie.EM_386:    (2,28),
     pixie.EM_X86_64: (2,18),
-    pixie.EM_ARM:    (2,18),
+    pixie.EM_ARM:    (2,28),
     pixie.EM_AARCH64:(2,18),
     pixie.EM_PPC64:  (2,18),
     pixie.EM_RISCV:  (2,27),
@@ -54,6 +60,8 @@
 IGNORE_EXPORTS = {
 '_edata', '_end', '__end__', '_init', '__bss_start', '__bss_start__', '_bss_end__', '__bss_end__', '_fini', '_IO_stdin_used', 'stdin', 'stdout', 'stderr',
 'environ', '_environ', '__environ',
+# Used in stacktraces.cpp
+'__cxa_demangle'
 }
 CPPFILT_CMD = os.getenv('CPPFILT', '/usr/bin/c++filt')
 OBJDUMP_CMD = os.getenv('OBJDUMP', '/usr/bin/objdump')
@@ -75,8 +83,10 @@
 'ld64.so.1', # POWER64 ABIv1 dynamic linker
 'ld64.so.2', # POWER64 ABIv2 dynamic linker
 'ld-linux-riscv64-lp64d.so.1', # 64-bit RISC-V dynamic linker
+'libz.so.1', # zlib
 # dash-qt only
 'libxcb.so.1', # part of X11
+'libxcb-shm.so.0', # X11 shared memory extension
 'libxkbcommon.so.0', # keyboard keymapping
 'libxkbcommon-x11.so.0', # keyboard keymapping
 'libfontconfig.so.1', # font support

contrib/gitian-descriptors/gitian-linux.yml

@@ -85,7 +85,7 @@ script: |
     echo "REAL=\`which -a ${prog} | grep -v ${WRAP_DIR}/${prog} | head -1\`" >> ${WRAP_DIR}/${prog}
     echo "export LD_PRELOAD='/usr/\$LIB/faketime/libfaketime.so.1'" >> ${WRAP_DIR}/${prog}
     echo "export FAKETIME=\"$1\"" >> ${WRAP_DIR}/${prog}
-    echo "\$REAL \$@" >> $WRAP_DIR/${prog}
+    echo "exec \"\$REAL\" \"\$@\"" >> $WRAP_DIR/${prog}
     chmod +x ${WRAP_DIR}/${prog}
     touch -d "${REFERENCE_DATETIME}" ${WRAP_DIR}/${prog}
   done
@@ -101,7 +101,7 @@ script: |
             echo "REAL=\`which -a ${i}-${prog}-8 | grep -v ${WRAP_DIR}/${i}-${prog} | head -1\`" >> ${WRAP_DIR}/${i}-${prog}
             echo "export LD_PRELOAD='/usr/\$LIB/faketime/libfaketime.so.1'" >> ${WRAP_DIR}/${i}-${prog}
             echo "export FAKETIME=\"$1\"" >> ${WRAP_DIR}/${i}-${prog}
-            echo "\$REAL \"\$@\"" >> $WRAP_DIR/${i}-${prog}
+            echo "exec \"\$REAL\" \"\$@\"" >> $WRAP_DIR/${i}-${prog}
             chmod +x ${WRAP_DIR}/${i}-${prog}
             touch -d "${REFERENCE_DATETIME}" ${WRAP_DIR}/${i}-${prog}
         fi
@@ -142,7 +142,7 @@ script: |
   # Extract the git archive into a dir for each host and build
   for i in ${HOSTS}; do
     export PATH=${BASEPREFIX}/${i}/native/bin:${ORIGPATH}
-    if [ "${i}" = "powerpc64-linux-gnu" ]; then
+    if [ "${i}" = "powerpc64-linux-gnu" ] || [ "${i}" = "powerpc64le-linux-gnu" ]; then
       # Workaround for https://bugs.launchpad.net/ubuntu/+source/gcc-8-cross-ports/+bug/1853740
       # TODO: remove this when no longer needed
       HOST_LDFLAGS="${HOST_LDFLAGS_BASE} -Wl,-z,noexecstack"

contrib/gitian-descriptors/gitian-osx-signer.yml

@@ -31,7 +31,7 @@ script: |
     echo "REAL=\`which -a ${prog} | grep -v ${WRAP_DIR}/${prog} | head -1\`" >> ${WRAP_DIR}/${prog}
     echo "export LD_PRELOAD='/usr/\$LIB/faketime/libfaketime.so.1'" >> ${WRAP_DIR}/${prog}
     echo "export FAKETIME=\"${REFERENCE_DATETIME}\"" >> ${WRAP_DIR}/${prog}
-    echo "\$REAL \$@" >> $WRAP_DIR/${prog}
+    echo "exec \"\$REAL\" \"\$@\"" >> $WRAP_DIR/${prog}
     chmod +x ${WRAP_DIR}/${prog}
   done
 

contrib/gitian-descriptors/gitian-osx.yml

@@ -78,7 +78,7 @@ script: |
     echo "REAL=\`which -a ${prog} | grep -v ${WRAP_DIR}/${prog} | head -1\`" >> ${WRAP_DIR}/${prog}
     echo "export LD_PRELOAD='/usr/\$LIB/faketime/libfaketime.so.1'" >> ${WRAP_DIR}/${prog}
     echo "export FAKETIME=\"$1\"" >> ${WRAP_DIR}/${prog}
-    echo "\$REAL \$@" >> $WRAP_DIR/${prog}
+    echo "exec \"\$REAL\" \"\$@\"" >> $WRAP_DIR/${prog}
     chmod +x ${WRAP_DIR}/${prog}
     touch -d "${REFERENCE_DATETIME}" ${WRAP_DIR}/${prog}
   done
@@ -91,7 +91,7 @@ script: |
         echo "REAL=\`which -a ${i}-${prog} | grep -v ${WRAP_DIR}/${i}-${prog} | head -1\`" >> ${WRAP_DIR}/${i}-${prog}
         echo "export LD_PRELOAD='/usr/\$LIB/faketime/libfaketime.so.1'" >> ${WRAP_DIR}/${i}-${prog}
         echo "export FAKETIME=\"$1\"" >> ${WRAP_DIR}/${i}-${prog}
-        echo "\$REAL \$@" >> $WRAP_DIR/${i}-${prog}
+        echo "exec \"\$REAL\" \"\$@\"" >> $WRAP_DIR/${i}-${prog}
         chmod +x ${WRAP_DIR}/${i}-${prog}
         touch -d "${REFERENCE_DATETIME}" ${WRAP_DIR}/${i}-${prog}
     done