Just to add to the rest of the info, I'm using i386-elf (that comes with ecos) to compile my program.
I have another program that too has a single thread and it uses TWO struct sockaddr_in var's. That program works just fine! Running strace on the prog shows a lot of Seg faults happening. I'm pretty clueless right now as to why one works while the other does not! :( -mandeep On Mon, Aug 3, 2009 at 2:53 PM, Mandeep Sandhu<[email protected]> wrote: > Hi All, > > I have a _very_ simple thread app which I've modified from the > "twothreads.c" example. > > It does nothing except start a thread in which I simply print a debug > message and declare > a var of "struct sockaddr_in". But on starting the app, it stops after a call > to > cyg_thread_resume(), i.e the thread does not start! > > I had originally written a limited DHCP server implementation (which > was not working)! > So on debugging I narrowed down the problem to a declaration of > "struct sockaddr_in" > variable. > > So I thought I'd make a simple thread which just declares this var and > does nothing. And > even in this sample app (test.c) I saw the same problem. I've > allocated a big enough stack > for the thread - 4KB. Also, increasing the stack size does not help. > The source is pasted > below. > > I know this is only some minor oversight from my side, but any > pointers will be very helpful > > Thanks, > -mandeep > > test.c: > > #include <cyg/kernel/kapi.h> > #include <network.h> > > cyg_thread test_s; > cyg_handle_t test_thread; > cyg_thread_entry_t test_start; > char stack[4096]; > > > void test_start(cyg_addrword_t data) > { > diag_printf("TEST!\n"); > struct sockaddr_in addr; > cyg_test_exit(); > } > > void cyg_user_start(void) > { > diag_printf("Configuring test thread...\n"); > cyg_thread_create( 4, > test_start, > (cyg_addrword_t) 0, > "TEST Thread", > (void *) &stack, > 4096, > &test_thread, > &test_s ); > > > diag_printf("Starting test...\n"); > cyg_thread_resume(test_thread); > } > -- Before posting, please read the FAQ: http://ecos.sourceware.org/fom/ecos and search the list archive: http://ecos.sourceware.org/ml/ecos-discuss
