watchpoints and gdb/gdbserver on embedded arm

May 25, 2005 0 Replies

I have a Cirrus EDB9302 development board running the Cirrus supplied linux (kernel 2.4.21-rmk1-crus1.4.3). I am trying to test remote debugging but can't get watchpoints to work. I have made a simple hello world program that does several printfs and increments a variable in between the printfs.



I can set regular breakpoints and step and print variables without any problems but when I set a watchpoint and continue usually nothing happens. I say usually because on occasion I do break when the test variable is incremented. But only the first time, never a second time.



Does anybody have any information about using watchpoints and remote debugging using gdbserver/gdb?



I am using gdb-5.3 (supplied by Cirrus) and am running arm-linux-gdb (also supplied by Cirrus) on Mandrake 10.1



My program: ============================================ #include



int testVar;



void incTestVar( int amount ) { testVar += amount; }



int main( int argc, char* argv ) { testVar = 0;



fprintf( stderr, "Welcome to my test program\n" );



++testVar;

fprintf( stderr, "I am testing watchpoints\n" );



incTestVar( 5 );



fprintf( stderr, "Isn't that magical?\n" );



--testVar;



return 0; }



============================================



And I am compiling it like this: arm-linux-gcc -g -o gdbtest gdbtest.c


Chris


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