GNU Binutils strip & objcopy

GNU Binutils

// -- $ mkdir src; vim src/hello.c --
#include <stdio.h>

int main(void)
{
  printf("Hello world!\n");
  return 0;
}

// -- $ vim makefile --
all: hello
	# -- strip --
	readelf -S hello | grep debug -c
	strip hello
	readelf -S hello | grep debug -c
	# -- objcopy --
	size hello
	mv hello hello.old
	objcopy -R .comment -R .note.ABI-tag -R .gnu.version hello.old hello
	size hello

hello: src/hello.c
	gcc -o3 -g -o hello ./src/hello.c

clean:
	rm -f hello*

// -- make --
$ make -i
gcc -o3 -g -o hello ./src/hello.c
# -- strip --
readelf -S hello | grep debug -c
9
strip hello
readelf -S hello | grep debug -c
0
make: [all] Error 1 (ignored)
# -- objcopy --
size hello
   text    data     bss     dec     hex filename
    896     264       8    1168     490 hello
mv hello hello.old
objcopy -R .comment -R .note.ABI-tag -R .gnu.version hello.old hello
size hello
   text    data     bss     dec     hex filename
    854     264       8    1126     466 hello