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Re: system ASSERT problem
On Wed, Mar 21, 2007 at 11:32:02AM +0100, Tomasz Kuty??a wrote:
I got strange problem with my application. When I compile system with
global compiler flags
-ml -m4 -O2 -Wall -Wpointer-arith -Wstrict-prototypes -Winline -Wundef
-Woverloaded-virtual -ggdb -ffunction-sections -fdata-sections -fno-rtti
-fno-exceptions -fvtable-gc -finit-priority -save-temps
I got info on terminal:
ASSERT FAIL: <3>mcard.c[193]int mcard_write_bmask() Valid card handler
required
ASSERT FAIL: mcard.c [ 193] int
mcard_write_bmask()
Valid card handler required
But when I remove '-O2' flag the problems doesn't occur. What can be the
problem???
There is no mcard.c in the repository, so i guess it is something you
have added. Without the code it is hard to guess what is happening.
Below is the code that generates the ASSERT:
int mcard_write_bmask(mcard_t *card)
{
CYG_CHECK_DATA_PTR(card, "valid card pointer required");
CYG_CHECK_DATA_PTR(card->bmask, "valid mask pointer required");
CYG_ASSERT(card->mcard_hdl,"Valid card handler required");
if( !card->mcard_hdl ) return -EINVAL;
if( !card->bmask ) return -EINVAL;
Well the asserts are wrong anyway. The code correctly handle the cases
which the asserts are testing for, so the asserts are not needed.
As to why this happens now, are you really sure the asserts were
enabled in your old configuration without -O2? Is it really
reproducible?
I use Cofig Tool for windows. And only thing I did was to delete -O2
flag from global compiler flags. I didn't change any ASSERTS flags.
Besides I can see that all actions on card were done without any error.
If it is reproducible the way forward is to see the assembly language
the compiler produces for both the working and none working case.
Where can I find assembly language after compilation?
Tomasz
--
Tomasz Kutyla, Design Engineer
MARP Electronic Sp. z o.o., ul. Pachonskiego 9, 31-223 Krakow
tel. +48 12 415-87-29 (ext. 35), mob.: +48 693 112 191
fax +48 12 415-86-80
e-mail: tkutyla@marp.pl; http://www.marp.pl
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