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[FAQ?] asize, astrip ... bad format
$ ls -l mandelbrot-s4p12.c
-rw-r--r-- 1 yeti yeti 887 Jun 21 15:08 mandelbrot-s4p12.c
$ ack -mlinux386 -O4 mandelbrot-s4p12.c -o mandelbrot-s4p12
"mandelbrot-s4p12.c", line 24: (warning) 'main' old-fashioned function definition
$ asize mandelbrot-s4p12
asize: mandelbrot-s4p12-- bad format
$ size mandelbrot-s4p12
text data bss dec hex filename
2200 176 144 2520 9d8 mandelbrot-s4p12
$ astrip mandelbrot-s4p12
astrip: mandelbrot-s4p12-- bad format
$ file mandelbrot-s4p12
mandelbrot-s4p12: ELF 32-bit LSB executable, Intel 80386, version 1 (GNU/Linux), statically linked, not stripped
$ strip mandelbrot-s4p12
$ file mandelbrot-s4p12
mandelbrot-s4p12: ELF 32-bit LSB executable, Intel 80386, version 1 (GNU/Linux), statically linked, stripped
How can I use asize
and astrip
correctly?
Or is using the GNUish variants indeed the right way to go?
asize and astrip only work on object files, rather than on the linker output files. So you'll need to strip all your object files one at a time before linking. It's possible to tell the linker to strip the resulting file but it looks like the ack
driver doesn't have a way to pass that flag on to the linker --- that's worth having.
but it looks like the ack driver doesn't have a way to pass that flag on to the linker --- that's worth having.
I indeed looked into the man page for it... ;-)
Thanks for the fast answer!
Use ack -Rled-s
to tell the linker to strip the symbols.
$ ack -mlinux386 -O4 example.c -Rled-s -o example
$ file example
example: ELF 32-bit LSB executable, Intel 80386, version 1
$ nm example
nm: example: no section header table
Tools like anm, asize, astrip only work ack.out(5) files, which are *.o before linking, or *.out after linking. If you use ack -c.out
to stop the conversion to ELF, you can use the tools.
$ ack -mlinux386 -O4 example.c -c.out -o example.out
$ anm -n example.out
16 A - EINVAL
8048054 0 S (NULL)
8048054 0 - begtext
...
$ asize example.out
224+0+4+144 = 372 = 0x174
$ astrip example.out
$ ack -mlinux386 example.out -o example
$ file example
example: ELF 32-bit LSB executable, Intel 80386, version 1
$ nm example
nm: example: no section header table