| 1 | # Usage:
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| 2 | # source build/common.sh
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| 3 |
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| 4 | # Include guard.
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| 5 | test -n "${__BUILD_COMMON_SH:-}" && return
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| 6 | readonly __BUILD_COMMON_SH=1
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| 7 |
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| 8 | if test -z "${REPO_ROOT:-}"; then
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| 9 | echo 'build/common.sh: $REPO_ROOT should be set before sourcing'
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| 10 | exit 1
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| 11 | fi
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| 12 |
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| 13 | set -o nounset
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| 14 | set -o errexit
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| 15 | #eval 'set -o pipefail'
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| 16 |
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| 17 | # New version is slightly slower -- 13 seconds vs. 11.6 seconds on oils-for-unix
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| 18 | readonly CLANG_DIR_RELATIVE='../oil_DEPS/clang+llvm-14.0.0-x86_64-linux-gnu-ubuntu-18.04'
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| 19 |
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| 20 | CLANG_DIR_1=$REPO_ROOT/$CLANG_DIR_RELATIVE
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| 21 | CLANG_DIR_FALLBACK=~/git/oilshell/oil/$CLANG_DIR_RELATIVE
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| 22 | if test -d $CLANG_DIR_1; then
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| 23 | CLANG_DIR=$CLANG_DIR_1
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| 24 | CLANG_IS_MISSING=''
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| 25 | else
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| 26 | # BUG FIX: What if we're building _deps/ovm-build or ../benchmark-data/src?
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| 27 | # Just hard-code an absolute path. (We used to use $PWD, but I think that
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| 28 | # was too fragile.)
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| 29 | CLANG_DIR=$CLANG_DIR_FALLBACK
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| 30 | CLANG_IS_MISSING='T'
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| 31 | fi
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| 32 | readonly CLANG_DIR
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| 33 |
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| 34 | readonly CLANG=$CLANG_DIR/bin/clang # used by benchmarks/{id,ovm-build}.sh
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| 35 | readonly CLANGXX=$CLANG_DIR/bin/clang++
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| 36 |
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| 37 | # I'm not sure if there's a GCC version of this?
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| 38 | export ASAN_SYMBOLIZER_PATH=$CLANG_DIR_RELATIVE/bin/llvm-symbolizer
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| 39 |
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| 40 | # ThreadSanitizer doesn't always give us all locations, but this doesn't help
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| 41 | # export TSAN_SYMBOLIZER_PATH=$ASAN_SYMBOLIZER_PATH
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| 42 |
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| 43 | # equivalent of 'cc' for C++ language
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| 44 | # https://stackoverflow.com/questions/172587/what-is-the-difference-between-g-and-gcc
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| 45 | CXX=${CXX:-'c++'}
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| 46 |
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| 47 | # Compiler flags we want everywhere.
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| 48 | # - -Weverything is more than -Wall, but too many errors now.
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| 49 | # - -fno-omit-frame-pointer is what Brendan Gregg says should always be on.
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| 50 | # Omitting the frame pointer might be neglibly faster, but reduces
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| 51 | # observability. It's required for the 'perf' tool and other kinds of tracing.
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| 52 | # Anecdotally the speed difference was in the noise on parsing
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| 53 | # configure-coreutils.
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| 54 | # - TODO(6/22): Disabled invalid-offsetof for now, but we should enable it after
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| 55 | # progress on the garbage collector. It could catch bugs.
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| 56 |
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| 57 | # Allow user to override both BASE_CXXFLAGS and CXXFLAGS
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| 58 | # There doesn't seem to be a well-known convention for this. Similar to this
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| 59 | # question:
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| 60 | # - https://stackoverflow.com/questions/51606653/allowing-users-to-override-cflags-cxxflags-and-friends
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| 61 |
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| 62 | default_cxx_flags='-std=c++11 -Wall -Wno-invalid-offsetof -fno-omit-frame-pointer'
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| 63 |
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| 64 | # note: Use - and not :- so that BASE_CXXFLAGS= works
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| 65 | BASE_CXXFLAGS=${BASE_CXXFLAGS-$default_cxx_flags}
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| 66 |
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| 67 | readonly PY27=Python-2.7.13
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| 68 |
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| 69 | readonly PREPARE_DIR=$REPO_ROOT/../oil_DEPS/cpython-full
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| 70 |
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| 71 | log() {
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| 72 | echo "$@" >&2
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| 73 | }
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| 74 |
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| 75 | die() {
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| 76 | log "$0: fatal: $@"
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| 77 | exit 1
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| 78 | }
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