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Re: [RTL]--emit lib call got error
Thanks very much!
I've got the problem solved, thanks again!
WangYi
----- Original Message -----
From: "Jim Wilson" <wilson@specifixinc.com>
To: "王 逸" <cnnjuwy@hotmail.com>
Cc: <gcc@gcc.gnu.org>
Sent: Tuesday, June 08, 2004 2:00 PM
Subject: Re: [RTL]--emit lib call got error
> 王 逸 wrote:
> > emit_library_call(gen_rtx(SYMBOL_REF, Pmode, "my_function_1"), LCT_NORMAL, SImode, 1, GEN_INT(0), SImode);
> > trying to pass an argument(integer 0) to the emitted lib call, I got some error.
>
> There isn't enough info to determine what the problem is. It isn't
> clear what change you made to the compiler, or what error you got. The
> given emit_library_call line looks reasonable, so the problem may be
> that you didn't do something else that was necessary. But since I don't
> know exactly what patch you added, it is difficult for me to comment on
> that.
>
> If you think there is something wrong with the emit_lib_call_value_1
> call, then put a breakpoint there in gdb and step through it to see what
> happens.
>
> > //program halted here and I pressed ctrl+c
>
> Are you sure the program halted here? Maybe it is just slow?
>
> > 0x08231ed2 in ggc_alloc (size=1226062116) at /home/ups/src/gcc-3.4.0-patched/gcc/ggc-page.c:1205
> > 1205 }
>
> This indicates a possible garbage collection problem. Maybe your
> SYMBOL_REF is live across a garbage collection point, and has not been
> marked as reachable from any GC root? Putting it in libfunc_table would
> solve this.
>
> By the way, there is already an option to emit a function call in every
> function. See the documentation for the -finstrument-functions option.
> --
> Jim Wilson, GNU Tools Support, http://www.SpecifixInc.com
>
>