URL
https://opencores.org/ocsvn/openrisc_me/openrisc_me/trunk
Subversion Repositories openrisc_me
[/] [openrisc/] [trunk/] [rtos/] [ecos-2.0/] [packages/] [language/] [c/] [libc/] [startup/] [v2_0/] [src/] [mainthread.cxx] - Rev 174
Compare with Previous | Blame | View Log
//======================================================================= // // mainthread.cxx // // Support for startup of ISO C environment // //======================================================================== //####ECOSGPLCOPYRIGHTBEGIN#### // ------------------------------------------- // This file is part of eCos, the Embedded Configurable Operating System. // Copyright (C) 1998, 1999, 2000, 2001, 2002 Red Hat, Inc. // // eCos is free software; you can redistribute it and/or modify it under // the terms of the GNU General Public License as published by the Free // Software Foundation; either version 2 or (at your option) any later version. // // eCos is distributed in the hope that it will be useful, but WITHOUT ANY // WARRANTY; without even the implied warranty of MERCHANTABILITY or // FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License // for more details. // // You should have received a copy of the GNU General Public License along // with eCos; if not, write to the Free Software Foundation, Inc., // 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA. // // As a special exception, if other files instantiate templates or use macros // or inline functions from this file, or you compile this file and link it // with other works to produce a work based on this file, this file does not // by itself cause the resulting work to be covered by the GNU General Public // License. However the source code for this file must still be made available // in accordance with section (3) of the GNU General Public License. // // This exception does not invalidate any other reasons why a work based on // this file might be covered by the GNU General Public License. // // Alternative licenses for eCos may be arranged by contacting Red Hat, Inc. // at http://sources.redhat.com/ecos/ecos-license/ // ------------------------------------------- //####ECOSGPLCOPYRIGHTEND#### //======================================================================== //#####DESCRIPTIONBEGIN#### // // Author(s): jlarmour // Contributors: // Date: 2000-04-30 // Purpose: Provides a thread object to call into a user-supplied // main() // Description: Here we define the thread object that calls // cyg_libc_invoke_main() which in turn will invoke // the user-supplied main() entry point function (or // alternatively the dummy empty one supplied by eCos) // Usage: Both the stack (cyg_libc_main_stack) and the thread // (cyg_libc_main_thread) can be overriden if you provide // your own symbols with those names. In the case of the // stack obviously you need to ensure // CYGNUM_LIBC_MAIN_STACK_SIZE corresponds to your own // stack. // The thread object is also available externally if you // want to control it (suspend/resume/etc.) either by // extern Cyg_Thread cyg_libc_main_thread; from C++, using // the kernel C++ API, or // extern cyg_handle_t cyg_libc_main_thread; from C using // the kernel C API. // //####DESCRIPTIONEND#### // //======================================================================== // CONFIGURATION #include <pkgconf/libc_startup.h> // C library configuration #ifdef CYGSEM_LIBC_STARTUP_MAIN_THREAD // INCLUDES #include <cyg/infra/cyg_type.h> // Common type definitions and support #include <pkgconf/kernel.h> // eCos kernel configuration #include <cyg/kernel/thread.hxx> // eCos thread support #include <cyg/kernel/thread.inl> #include <cyg/hal/hal_arch.h> // for CYGNUM_HAL_STACK_SIZE_TYPICAL // EXTERNS #ifdef CYGSEM_LIBC_INVOKE_DEFAULT_STATIC_CONSTRUCTORS extern cyg_bool cyg_hal_stop_constructors; #endif // FUNCTION PROTOTYPES externC void cyg_libc_invoke_main( CYG_ADDRWORD ); // STATICS #ifdef CYGSEM_LIBC_MAIN_STACK_FROM_SYSTEM // override stack size on some platforms #ifdef CYGNUM_HAL_STACK_SIZE_TYPICAL # if CYGNUM_LIBC_MAIN_DEFAULT_STACK_SIZE < CYGNUM_HAL_STACK_SIZE_TYPICAL # undef CYGNUM_LIBC_MAIN_DEFAULT_STACK_SIZE # define CYGNUM_LIBC_MAIN_DEFAULT_STACK_SIZE CYGNUM_HAL_STACK_SIZE_TYPICAL # endif #endif static cyg_uint8 cyg_libc_main_stack[ CYGNUM_LIBC_MAIN_DEFAULT_STACK_SIZE ]; #else // !ifdef CYGSEM_LIBC_MAIN_STACK_FROM_SYSTEM extern char *cyg_libc_main_stack; extern int cyg_libc_main_stack_size; #endif // !ifdef CYGSEM_LIBC_MAIN_STACK_FROM_SYSTEM // GLOBALS // let the main thread be global so people can play with it (e.g. suspend // or resume etc.) if that's what they want to do Cyg_Thread cyg_libc_main_thread CYGBLD_ATTRIB_INIT_PRI(CYG_INIT_LIBC) = Cyg_Thread(CYGNUM_LIBC_MAIN_THREAD_PRIORITY, &cyg_libc_invoke_main, (CYG_ADDRWORD) 0, "main", (CYG_ADDRESS) &cyg_libc_main_stack[0], #ifdef CYGSEM_LIBC_MAIN_STACK_FROM_SYSTEM CYGNUM_LIBC_MAIN_DEFAULT_STACK_SIZE #else cyg_libc_main_stack_size #endif ); #endif // ifdef CYGSEM_LIBC_STARTUP_MAIN_THREAD // EOF mainthread.cxx