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Merge "Revert^2 "[strip.sh] Move remaining GNU binutils usage to llvm binutils""

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David Srbecky 2021-04-09 11:58:00 +00:00 committed by Gerrit Code Review
commit 2af7a1b5ff
2 changed files with 5 additions and 12 deletions
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2
cc/builder.go
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@ -132,7 +132,7 @@ var (
blueprint.RuleParams{
Depfile: "${out}.d",
Deps: blueprint.DepsGCC,
Command: "CROSS_COMPILE=$crossCompile XZ=$xzCmd CLANG_BIN=${config.ClangBin} $stripPath ${args} -i ${in} -o ${out} -d ${out}.d",
Command: "XZ=$xzCmd CLANG_BIN=${config.ClangBin} $stripPath ${args} -i ${in} -o ${out} -d ${out}.d",
CommandDeps: []string{"$stripPath", "$xzCmd"},
Pool: darwinStripPool,
},

15
scripts/strip.sh
View file

@ -18,7 +18,6 @@
# Inputs:
# Environment:
# CLANG_BIN: path to the clang bin directory
# CROSS_COMPILE: prefix added to readelf, objcopy tools
# XZ: path to the xz binary
# Arguments:
# -i ${file}: input file (required)
@ -69,7 +68,7 @@ do_strip_keep_symbol_list() {
KEEP_SYMBOLS="--strip-unneeded-symbol=* --keep-symbols="
KEEP_SYMBOLS+="${outfile}.symbolList"
"${CROSS_COMPILE}objcopy" -w "${infile}" "${outfile}.tmp" ${KEEP_SYMBOLS}
"${CLANG_BIN}/llvm-objcopy" -w "${infile}" "${outfile}.tmp" ${KEEP_SYMBOLS}
}
do_strip_keep_mini_debug_info() {
@ -78,18 +77,13 @@ do_strip_keep_mini_debug_info() {
"${CLANG_BIN}/llvm-strip" --strip-all --keep-section=.ARM.attributes --remove-section=.comment "${infile}" -o "${outfile}.tmp" || fail=true
if [ -z $fail ]; then
# Current prebult llvm-objcopy does not support --only-keep-debug flag,
# and cannot process object files that are produced with the flag. Use
# GNU objcopy instead for now. (b/141010852)
"${CROSS_COMPILE}objcopy" --only-keep-debug "${infile}" "${outfile}.debug"
"${CLANG_BIN}/llvm-objcopy" --only-keep-debug "${infile}" "${outfile}.debug"
"${CLANG_BIN}/llvm-nm" -D "${infile}" --format=posix --defined-only 2> /dev/null | awk '{ print $1 }' | sort >"${outfile}.dynsyms"
"${CLANG_BIN}/llvm-nm" "${infile}" --format=posix --defined-only | awk '{ if ($2 == "T" || $2 == "t" || $2 == "D") print $1 }' | sort > "${outfile}.funcsyms"
comm -13 "${outfile}.dynsyms" "${outfile}.funcsyms" > "${outfile}.keep_symbols"
echo >> "${outfile}.keep_symbols" # Ensure that the keep_symbols file is not empty.
"${CROSS_COMPILE}objcopy" --rename-section .debug_frame=saved_debug_frame "${outfile}.debug" "${outfile}.mini_debuginfo"
"${CROSS_COMPILE}objcopy" -S --remove-section .gdb_index --remove-section .comment --remove-section .rustc --keep-symbols="${outfile}.keep_symbols" "${outfile}.mini_debuginfo"
"${CROSS_COMPILE}objcopy" --rename-section saved_debug_frame=.debug_frame "${outfile}.mini_debuginfo"
"${XZ}" --block-size=64k --threads=0 "${outfile}.mini_debuginfo"
"${CLANG_BIN}/llvm-objcopy" -S --keep-section .debug_frame --keep-symbols="${outfile}.keep_symbols" "${outfile}.debug" "${outfile}.mini_debuginfo"
"${XZ}" --keep --block-size=64k --threads=0 "${outfile}.mini_debuginfo"
"${CLANG_BIN}/llvm-objcopy" --add-section .gnu_debugdata="${outfile}.mini_debuginfo.xz" "${outfile}.tmp"
rm -f "${outfile}.dynsyms" "${outfile}.funcsyms" "${outfile}.keep_symbols" "${outfile}.debug" "${outfile}.mini_debuginfo" "${outfile}.mini_debuginfo.xz"
@ -196,7 +190,6 @@ mv "${outfile}.tmp" "${outfile}"
cat <<EOF > "${depsfile}"
${outfile}: \
${infile} \
${CROSS_COMPILE}objcopy \
${CLANG_BIN}/llvm-nm \
${CLANG_BIN}/llvm-objcopy \
${CLANG_BIN}/llvm-readelf \