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authorTavian Barnes <tavianator@tavianator.com>2024-04-10 14:53:59 -0400
committerTavian Barnes <tavianator@tavianator.com>2024-04-10 14:55:40 -0400
commit000ceddf7b607c70297d2dbdee4a800423975fc1 (patch)
tree0c4e47baacc13dfe70969d7cad183dcf1abb3bca /config/vars.sh
parent6c8d11e8e5b3457286fcda75b6516e93f1f12f17 (diff)
downloadbfs-000ceddf7b607c70297d2dbdee4a800423975fc1.tar.xz
build: Factor out vars.mk generation into a script
Diffstat (limited to 'config/vars.sh')
-rwxr-xr-xconfig/vars.sh81
1 files changed, 81 insertions, 0 deletions
diff --git a/config/vars.sh b/config/vars.sh
new file mode 100755
index 0000000..c0fb124
--- /dev/null
+++ b/config/vars.sh
@@ -0,0 +1,81 @@
+#!/usr/bin/env bash
+
+# Copyright © Tavian Barnes <tavianator@tavianator.com>
+# SPDX-License-Identifier: 0BSD
+
+# Writes the saved variables to gen/vars.mk
+
+set -eu
+
+print() {
+ NAME="$1"
+ OP="${2:-:=}"
+
+ if (($# >= 3)); then
+ printf '# %s\n' "${3#X}"
+ declare -n VAR="$3"
+ VALUE="${VAR:-}"
+ else
+ # Try X$NAME, $NAME, ""
+ local -n XVAR="X$NAME"
+ local -n VAR="$NAME"
+ VALUE="${XVAR:-${VAR:-}}"
+ fi
+
+ printf '%s %s %s\n' "$NAME" "$OP" "$VALUE"
+}
+
+cond_flags() {
+ local -n COND="$1"
+
+ if [[ "${COND:-}" == *y* ]]; then
+ print "$2" += "${1}_${2}"
+ fi
+}
+
+print PREFIX
+print MANDIR
+
+print OS
+print ARCH
+
+print CC
+print INSTALL
+print MKDIR
+print RM
+
+print CPPFLAGS := BFS_CPPFLAGS
+cond_flags TSAN CPPFLAGS
+cond_flags LINT CPPFLAGS
+cond_flags RELEASE CPPFLAGS
+print CPPFLAGS += XCPPFLAGS
+print CPPFLAGS += EXTRA_CPPFLAGS
+
+print CFLAGS := BFS_CFLAGS
+cond_flags ASAN CFLAGS
+cond_flags LSAN CFLAGS
+cond_flags MSAN CFLAGS
+cond_flags TSAN CFLAGS
+cond_flags UBSAN CFLAGS
+cond_flags SAN CFLAGS
+cond_flags GCOV CFLAGS
+cond_flags LINT CFLAGS
+cond_flags RELEASE CFLAGS
+print CFLAGS += XCFLAGS
+print CFLAGS += EXTRA_CFLAGS
+
+print LDFLAGS := XLDFLAGS
+print LDFLAGS += EXTRA_LDFLAGS
+
+print LDLIBS := XLDLIBS
+print LDLIBS += EXTRA_LDLIBS
+print LDLIBS += BFS_LDLIBS
+
+print PKGS
+
+# Disable ASLR on FreeBSD when sanitizers are enabled
+case "$XOS-$SAN" in
+ FreeBSD-*y*)
+ printf 'POSTLINK = elfctl -e +noaslr $$@\n'
+ ;;
+esac