Merge 5bf1955fa9 into b145377c39

Improve --gdb-index test by using readelf --debug=gdb_index

docs/design.md

@@ -163,7 +163,7 @@ tool.
   (i.e. `_start`) or a few other root sections. In mold, we are using
   multiple threads to mark sections concurrently.
 
-- Similarly, BFD, gold an lld support Identical Comdat Folding (ICF)
+- Similarly, BFD, gold and lld support Identical Comdat Folding (ICF)
   as yet another size optimization. ICF merges two or more read-only
   sections that happen to have the same contents and relocations.
   To do that, we have to find isomorphic subgraphs from larger graphs.

test/elf/gdb-index-dwarf5.sh

@@ -65,6 +65,8 @@ $CC -c -o $t/d.o $t/d.c -fPIC -g -ggnu-pubnames -gdwarf-5 -ffunction-sections
 
 $CC -B. -shared -o $t/e.so $t/a.o $t/b.o $t/c.o $t/d.o -Wl,--gdb-index
 readelf -WS $t/e.so 2> /dev/null | grep -Fq .gdb_index
+readelf --debug=gdb_index $t/e.so 2> /dev/null | grep -q 'fn1: .* \[global, function\]'
+readelf --debug=gdb_index $t/e.so 2> /dev/null | grep -q 'char: .* \[static, type\]'
 
 cat <<EOF | $CC -c -o $t/f.o -fPIC -g -ggnu-pubnames -gdwarf-5 -xc - -gz
 void fn1();
@@ -76,6 +78,7 @@ EOF
 
 $CC -B. -o $t/exe $t/e.so $t/f.o -Wl,--gdb-index
 readelf -WS $t/exe 2> /dev/null | grep -Fq .gdb_index
+readelf --debug=gdb_index $t/exe 2> /dev/null | grep -q 'main: .* \[global, function\]'
 
 $QEMU $t/exe | grep -q 'Hello world'