dtrace discuss - Jan 2008 - CTF generation problem

I am having problems with the CTF conversion for code like this:

------
typedef int (*functype_t)(int);
functype_t woof;
int meow(int arg)
{
        return (arg);
}
int main()
{
        int ret;
        woof = meow;
        ret = (*woof)(1);
        return (ret);
}
-----

On FreeBSD, we are using gcc 4.2.1 which outputs dwarf for the first line:
- DW_TAG_typedef
- DW_TAG_pointer_type
- DW_TAG_subroutine_type          DW_TAG_formal_parameter
- DW_TAG_base_type

The error I get from ctfconvert is:
ERROR: test8.c: failed to get mapping for tid 119 <77>

where tid 119 (or 77 in hex) is the DW_TAG_subroutine_type.

I don''t have an intel machine that can run Solaris, so I can''t
test that myself.

I wonder what the CTF should be given that the subroutine_type is unnamed, but
not flagged by gcc with a DW_AT_declaration like I thought it would have been.

--
John Birrell


--
This message posted from opensolaris.org

Ugh. It turned out to be a dumb uninitialised variable.

Sigh.

That will teach me for writing my own libdwarf.

heh

--
John Birrell


--
This message posted from opensolaris.org