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99 lines
3.6 KiB

--- rpm-4.10.0/macros.in 2012-06-11 11:16:21.216952339 +0200
+++ rpm-4.10.0/macros.in.minidebug 2012-06-11 11:16:23.686912455 +0200
@@ -175,7 +175,7 @@
# the script. See the script for details.
#
%__debug_install_post \
- %{_rpmconfigdir}/find-debuginfo.sh %{?_missing_build_ids_terminate_build:--strict-build-id} %{?_find_debuginfo_dwz_opts} %{?_find_debuginfo_opts} "%{_builddir}/%{?buildsubdir}"\
+ %{_rpmconfigdir}/find-debuginfo.sh %{?_missing_build_ids_terminate_build:--strict-build-id} %{?_include_minidebuginfo:-m} %{?_find_debuginfo_dwz_opts} %{?_find_debuginfo_opts} "%{_builddir}/%{?buildsubdir}"\
%{nil}
# Template for debug information sub-package.
@@ -418,6 +418,12 @@ package or when debugging this package.\
#%_missing_build_ids_terminate_build 1
#
+# Include minimal debug information in build binaries.
+# Requires _enable_debug_packages.
+#
+#%_include_minidebuginfo 1
+
+#
# Use internal dependency generator rather than external helpers?
%_use_internal_dependency_generator 1
--- rpm-4.10.0/scripts/find-debuginfo.sh 2012-06-11 11:16:09.698138273 +0200
+++ rpm-4.10.0/scripts/find-debuginfo.sh.minidebug 2012-06-11 11:16:13.399078526 +0200
@@ -2,7 +2,7 @@
#find-debuginfo.sh - automagically generate debug info and file list
#for inclusion in an rpm spec file.
#
-# Usage: find-debuginfo.sh [--strict-build-id] [-g] [-r]
+# Usage: find-debuginfo.sh [--strict-build-id] [-g] [-r] [-m]
# [-o debugfiles.list]
# [--run-dwz] [--dwz-low-mem-die-limit N]
# [--dwz-max-die-limit N]
@@ -29,6 +29,9 @@ strip_g=false
# with -r arg, pass --reloc-debug-sections to eu-strip.
strip_r=false
+# with -m arg, add minimal debuginfo to binary.
+include_minidebug=false
+
# Barf on missing build IDs.
strict=false
@@ -43,6 +46,9 @@ while [ $# -gt 0 ]; do
-g)
strip_g=true
;;
+ -m)
+ include_minidebug=true
+ ;;
-o)
if [ -z "${lists[$nout]}" -a -z "${ptns[$nout]}" ]; then
out=$2
@@ -105,6 +111,32 @@ strip_to_debug()
chmod 444 "$1" || exit
}
+add_minidebug()
+{
+ local debuginfo="$1"
+ local binary="$2"
+
+ local dynsyms=`mktemp`
+ local funcsyms=`mktemp`
+ local keep_symbols=`mktemp`
+ local mini_debuginfo=`mktemp`
+
+ # Extract the dynamic symbols from the main binary, there is no need to also have these
+ # in the normal symbol table
+ nm -D "$binary" --format=posix --defined-only | awk '{ print $1 }' | sort > "$dynsyms"
+ # Extract all the text (i.e. function) symbols from the debuginfo
+ nm "$debuginfo" --format=posix --defined-only | awk '{ if ($2 == "T" || $2 == "t") print $1 }' | sort > "$funcsyms"
+ # Keep all the function symbols not already in the dynamic symbol table
+ comm -13 "$dynsyms" "$funcsyms" > "$keep_symbols"
+ # Copy the full debuginfo, keeping only a minumal set of symbols and removing some unnecessary sections
+ objcopy -S --remove-section .gdb_index --remove-section .comment --keep-symbols="$keep_symbols" "$debuginfo" "$mini_debuginfo" &> /dev/null
+ #Inject the compressed data into the .gnu_debugdata section of the original binary
+ xz "$mini_debuginfo"
+ mini_debuginfo="${mini_debuginfo}.xz"
+ objcopy --add-section .gnu_debugdata="$mini_debuginfo" "$binary"
+ rm -f "$dynsyms" "$funcsyms" "$keep_symbols" "$mini_debuginfo"
+}
+
# Make a relative symlink to $1 called $3$2
shopt -s extglob
link_relative()
@@ -260,6 +292,9 @@ while read nlinks inum f; do
chmod u-w "$f"
fi
+ $include_minidebug && add_minidebug "${debugfn}" "$f"
+
+
if [ -n "$id" ]; then
make_id_link "$id" "$dn/$(basename $f)"
make_id_link "$id" "/usr/lib/debug$dn/$bn" .debug