tabs and tab overview

pgo/pgo.sh

@@ -0,0 +1,116 @@
+#!/bin/sh
+
+set -eu
+
+usage_and_die() {
+    echo "Usage: ${0} none|partial|full-current-session|full-headless-sway|full-headless-cage|[auto] <source-dir> <build-dir> [meson options]"
+    exit 1
+}
+
+[ ${#} -ge 3 ] || usage_and_die
+
+mode=${1}
+srcdir=$(realpath "${2}")
+blddir=$(realpath "${3}")
+shift 3
+
+# if [ -e "${blddir}" ]; then
+#     echo "error: ${blddir}: build directory already exists"
+#     exit 1
+# fi
+
+if [ ! -f "${srcdir}"/generate-version.sh ]; then
+   echo "error: ${srcdir}: does not appear to be a foot source directory"
+   exit 1
+fi
+
+compiler=other
+do_pgo=no
+
+CFLAGS="${CFLAGS-} -O3"
+
+case $(${CC-cc} --version) in
+    *Free\ Software\ Foundation*)
+        compiler=gcc
+        do_pgo=yes
+        ;;
+
+    *clang*)
+        compiler=clang
+
+        if command -v llvm-profdata > /dev/null; then
+            do_pgo=yes
+            CFLAGS="${CFLAGS} -Wno-ignored-optimization-argument"
+        fi
+        ;;
+esac
+
+case ${mode} in
+    partial|full-current-session|full-headless-sway|full-headless-cage)
+    ;;
+
+    none)
+        do_pgo=no
+        ;;
+
+    auto)
+        if [ -n "${WAYLAND_DISPLAY+x}" ]; then
+            mode=full-current-session
+        elif command -v sway > /dev/null; then
+            mode=full-headless-sway
+        elif command -v cage > /dev/null; then
+            mode=full-headless-cage
+        else
+            mode=partial
+        fi
+        ;;
+
+    *)
+        usage_and_die
+        ;;
+esac
+
+set -x
+
+# echo "source: ${srcdir}"
+# echo "build: ${blddir}"
+# echo "compiler: ${compiler}"
+# echo "mode: ${mode}"
+# echo "CFLAGS: ${CFLAGS}"
+
+export CFLAGS
+export CCACHE_DISABLE=1
+meson setup --buildtype=release -Db_lto=true "${@}" "${blddir}" "${srcdir}"
+
+if [ ${do_pgo} = yes ]; then
+    find "${blddir}" \
+         '(' \
+           -name "*.gcda" -o \
+           -name "*.profraw" -o \
+           -name default.profdata \
+         ')' \
+         -delete
+
+    meson configure "${blddir}" -Db_pgo=generate
+    ninja -C "${blddir}"
+
+    # If fcft/tllist are subprojects, we need to ensure their tests
+    # have been executed, or we'll get "profile count data file not
+    # found" errors.
+    ninja -C "${blddir}" test
+
+    # Run mode-dependent script to generate profiling data
+    export LLVM_PROFILE_FILE="${blddir}/default_%m.profraw"
+    "${srcdir}"/pgo/${mode}.sh "${srcdir}" "${blddir}"
+
+    if [ ${compiler} = clang ]; then
+        llvm-profdata \
+            merge \
+            "${blddir}"/default_*.profraw \
+            --output="${blddir}"/default.profdata
+    fi
+
+    meson configure "${blddir}" -Db_pgo=use
+fi
+
+ninja -C "${blddir}"