dwarves/ctfdwdiff

#!/bin/bash

obj=$1
pahole -Z $obj
pahole -F ctf $obj > /tmp/$obj.ctf.c
pahole -F dwarf $obj > /tmp/$obj.dwarf.c
diff -u /tmp/$obj.ctf.c /tmp/$obj.dwarf.c > /tmp/$obj.diff
vim /tmp/$obj.diff
ctfdwdiff: Simple shell script for testing the CTF encoder/decoder First it gets a file with DWARF info, converts that to CTF and adds a ".SUNW_ctf" ELF section to the file with DWARF info. Double debugging foo! Pay for one, take two! For tcp_input.o for instance, the result is: [acme@doppio pahole]$ cat /tmp/tcp_input.o.diff --- /tmp/tcp_input.o.ctf.c 2009-03-19 19:48:23.000000000 -0300 +++ /tmp/tcp_input.o.dwarf.c 2009-03-19 19:48:23.000000000 -0300 @@ -1811,7 +1811,7 @@ /* XXX 6 bytes hole, try to pack / - void (call)(const struct marker , void ); /* 24 8 / + void (call)(const struct marker , void , ...); /* 24 8 / struct marker_probe_closure single; / 32 16 / struct marker_probe_closure multi; /* 48 8 / const char tp_name; /* 56 8 */ [acme@doppio pahole]$ Now back to figuring out how to encode a VARARGS marker in CTF... Ah, to use the script just do: ./ctfdwdiff foo.o Some will crash, but we're working hard for fuller customer satisfaction. Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> 2009-03-19 23:50:09 +01:00			`#!/bin/bash`

			`obj=$1`
			`pahole -Z $obj`
			`pahole -F ctf $obj > /tmp/$obj.ctf.c`
			`pahole -F dwarf $obj > /tmp/$obj.dwarf.c`
			`diff -u /tmp/$obj.ctf.c /tmp/$obj.dwarf.c > /tmp/$obj.diff`
			`vim /tmp/$obj.diff`