diff options
| -rw-r--r-- | .travis.yml | 1 | ||||
| -rwxr-xr-x | Meta/check-symbols.sh | 21 |
2 files changed, 22 insertions, 0 deletions
diff --git a/.travis.yml b/.travis.yml index 9eb469529b..39ad4027d0 100644 --- a/.travis.yml +++ b/.travis.yml @@ -49,6 +49,7 @@ script: - cd Build - cmake .. -DBUILD_LAGOM=1 -DALL_THE_DEBUG_MACROS=1 - make -j2 +- Meta/check-symbols.sh - CTEST_OUTPUT_ON_FAILURE=1 make test - cd Meta/Lagom - DISABLE_DBG_OUTPUT=1 ./test-js diff --git a/Meta/check-symbols.sh b/Meta/check-symbols.sh new file mode 100755 index 0000000000..8d28eeda6d --- /dev/null +++ b/Meta/check-symbols.sh @@ -0,0 +1,21 @@ +#!/bin/sh + +script_path=$(cd -P -- "$(dirname -- "$0")" && pwd -P) +cd "$script_path/.." + +# The __cxa_guard_* calls are generated for (non trivial) initialzation of local static objects. +# These symbols are OK to use within serenity code, but they are problematic in LibC because their +# existence breaks ports (the implementation of these symbols resides in libstdc++.a which we do not link against in ports). +# To eliminate the need for these symbols, avoid doing non-trivial construction of local statics in LibC. + +FORBIDDEN_SYMBOLS="__cxa_guard_acquire __cxa_guard_release" +LIBC_PATH="Build/Libraries/LibC/libc.a" +for forbidden_symbol in $FORBIDDEN_SYMBOLS; do + # check if symbol is undefined + nm $LIBC_PATH | grep "U $forbidden_symbol" + if [ $? -eq 0 ]; then + echo "Forbidden undefined symbol in LibC: $forbidden_symbol" + echo "See comment in Meta/check-symbols.sh for more info" + exit 1 + fi +done |