kit

kit
git clone https://git.ryansepassi.com/git/kit.git
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02-strip-all-keeps-reloc-targets.sh (590B)

      1 # --strip-all drops every symbol that isn't referenced by a surviving
      2 # reloc (and isn't an UNDEF extern). Here _helper is reloc-targeted by
      3 # main's call, so it survives; _main itself isn't referenced and is dropped.
      4 
      5 cat > smoke.c <<'EOF'
      6 int helper(void) { return 42; }
      7 int main(void) { return helper(); }
      8 EOF
      9 "$KIT" cc -g -c smoke.c -o smoke.o
     10 "$KIT" strip --strip-all smoke.o -o smoke.stripped.o
     11 
     12 echo "== symbols =="
     13 "$KIT" objdump -t smoke.stripped.o | awk '$NF ~ /^_/{print $NF}' | sort
     14 echo "== sections =="
     15 "$KIT" objdump -h smoke.stripped.o | awk '/^ *[0-9]+ /{print $2}' | sort