64 lines
1.3 KiB
Bash
64 lines
1.3 KiB
Bash
#!/bin/bash
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# Wrapper script for find-debuginfo.sh
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#
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# Usage:
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# wrap-find-debuginfo.sh LDSO-PATH SCRIPT-PATH SCRIPT-ARGS...
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#
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# The wrapper saves the original versions of the file at LDSO-PATH,
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# invokes SCRIPT-PATH with SCRIPT-ARGS, and then restores the
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# LDSO-PATH file. As a result, LDSO-PATH has unchanged debuginfo even
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# after debuginfo extraction.
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set -ex
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ldso_tmp="$(mktemp)"
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cleanup () {
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rm -f "$ldso_tmp"
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}
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trap cleanup 0
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ldso_path="$1"
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shift
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script_path="$1"
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shift
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# Preserve the original file.
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cp "$ldso_path" "$ldso_tmp"
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# Run the debuginfo extraction.
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"$script_path" "$@"
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# Restore the original file.
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cp "$ldso_tmp" "$ldso_path"
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# Reduce the size of notes. Primarily for annobin.
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objcopy --merge-notes "$ldso_path"
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# Rewrite the source file paths to match the extracted locations.
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# First compute the arguments for invoking debugedit. See
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# find-debuginfo.sh.
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debug_dest_name="/usr/src/debug"
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last_arg=
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while true ; do
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arg="$1"
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shift || break
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case "$arg" in
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(--unique-debug-src-base)
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debug_dest_name="/usr/src/debug/$1"
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shift
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;;
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(-*)
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;;
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(*)
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last_arg="$arg"
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;;
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esac
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done
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debug_base_name=${last_arg:-$RPM_BUILD_ROOT}
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/usr/lib/rpm/debugedit -b "$debug_base_name" -d "$debug_dest_name" -n \
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$ldso_path
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# Apply single-file DWARF optimization.
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dwz $ldso_path
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