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Re: expanding c-macros in gdb
- From: Eli Zaretskii <eliz at is dot elta dot co dot il>
- To: "Howind Axel, Externer Dienstleister" <Axel dot Howind at fja dot com>
- Cc: "'gdb at sources dot redhat dot com'" <gdb at sources dot redhat dot com>
- Date: Wed, 5 Dec 2001 13:42:25 +0200 (IST)
- Subject: Re: expanding c-macros in gdb
On Wed, 5 Dec 2001, Howind Axel, Externer Dienstleister wrote:
> Is there a way to make gdb understand that the command
> print REFP_XYZ(a).abc is the same as print xyz_ptr->s_xyz.r_xyz[i].xyz.abc?
>
> I have read in the gcc manual that compiling with -g3 stores information
> about all defined macros, so that "Some debuggers support macro
> expansion when you use `-g3'."
> This does not seem to work with gdb (gcc 2.95.2, gdb 5.0, on HP-UX 10.20).
Try compiling with -gdwarf-2 or -gstabs+ instead of -g3. Perhaps that
would help (I have no idea whether DWARF2 is supported on HP-UX).
> define printmac(arg)
> print `echo $arg | sed -f transform`
You want to invoke cpp, not Sed, I think: macro expansion is not a simple
text substitution.