update to glibc-2.28-189.el8.src.rpm

Signed-off-by: Zhao Hang <wb-zh951434@alibaba-inc.com>

wrap-find-debuginfo.sh

@@ -0,0 +1,112 @@
+#!/bin/bash
+# Wrapper script for find-debuginfo.sh
+#
+# Usage:
+#  wrap-find-debuginfo.sh SYSROOT-PATH SCRIPT-PATH SCRIPT-ARGS...
+#
+# The wrapper saves the original version of ld.so found in SYSROOT-PATH,
+# invokes SCRIPT-PATH with SCRIPT-ARGS, and then restores the
+# LDSO-PATH file, followed by note merging and DWZ compression.
+# As a result, ld.so has (mostly) unchanged debuginfo even
+# after debuginfo extraction.
+#
+# For libc.so.6 and other shared objects, a set of strategic symbols
+# is preserved in .symtab that are frequently used in valgrind
+# suppressions and elsewhere.
+
+set -evx
+
+tar_tmp="$(mktemp)"
+
+# Prefer a separately installed debugedit over the RPM-integrated one.
+if command -v debugedit >/dev/null ; then
+    debugedit=debugedit
+else
+    debugedit=/usr/lib/rpm/debugedit
+fi
+
+cleanup () {
+    rm -f "$tar_tmp"
+}
+trap cleanup 0
+
+sysroot_path="$1"
+shift
+script_path="$1"
+shift
+
+# See run_ldso setting in glibc.spec.
+ldso_list=`cd "$sysroot_path"; find . -name 'ld-*.so' -type f`
+libc_list=`cd "$sysroot_path"; find . -name 'libc-*.so' -type f`
+libdl_list=`cd "$sysroot_path"; find . -name 'libdl-*.so' -type f`
+libpthread_list=`cd "$sysroot_path"; find . -name 'libpthread-*.so' -type f`
+librt_list=`cd "$sysroot_path"; find . -name 'librt-*.so' -type f`
+
+full_list="$ldso_list $libc_list $libdl_list $libpthread_list $librt_list"
+
+# Preserve the original files.
+(cd "$sysroot_path"; ls -l $full_list)
+(cd "$sysroot_path"; tar cvf "$tar_tmp" $full_list)
+
+# Run the debuginfo extraction.
+"$script_path" "$@"
+
+# Restore the original files.
+(cd "$sysroot_path"; tar xf "$tar_tmp")
+(cd "$sysroot_path"; ls -l $full_list)
+
+# Reduce the size of notes.  Primarily for annobin.
+for p in $full_list
+do
+    objcopy --merge-notes "$sysroot_path/$p"
+done
+
+# libc.so.6 and other shared objects: Reduce to valuable symbols.
+# Eliminate file symbols, annobin symbols, and symbols used by the
+# glibc build to implement hidden aliases (__EI_*).  We would also
+# like to remove __GI_* symbols, but even listing them explicitly (as
+# in -K __GI_strlen) still causes strip to remove them, so there is no
+# filtering of __GI_* here.  (Debuginfo is gone after this, so no need
+# to optimize it.)
+for p in $libc_list $libdl_list $libpthread_list $librt_list ; do
+    strip -w \
+	  -K '*' \
+	  -K '!*.c' \
+	  -K '!*.os' \
+	  -K '!.annobin_*' \
+	  -K '!__EI_*' \
+	  -K '!__PRETTY_FUNCTION__*' \
+	  "$sysroot_path/$p"
+done
+
+# ld.so: Rewrite the source file paths to match the extracted
+# locations.  First compute the arguments for invoking debugedit.
+# See find-debuginfo.sh.
+debug_dest_name="/usr/src/debug"
+last_arg=
+while true ; do
+    arg="$1"
+    shift || break
+    case "$arg" in
+	(--unique-debug-src-base)
+	    debug_dest_name="/usr/src/debug/$1"
+	    shift
+	    ;;
+	(-*)
+	    ;;
+	(*)
+	    last_arg="$arg"
+	    ;;
+    esac
+done
+debug_base_name=${last_arg:-$RPM_BUILD_ROOT}
+for p in $ldso_list
+do
+    $debugedit -b "$debug_base_name" -d "$debug_dest_name" -n "$sysroot_path/$p"
+done
+
+# Apply single-file DWARF optimization.
+for ldso in $ldso_list
+do
+    dwz "$sysroot_path/$p"
+done