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[/] [openrisc/] [trunk/] [rtos/] [ecos-2.0/] [packages/] [language/] [c/] [libc/] [startup/] [v2_0/] [src/] [cstartup.cxx] - Rev 174
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//======================================================================= // // cstartup.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: // Description: // Usage: // //####DESCRIPTIONEND#### // //======================================================================== // CONFIGURATION #include <pkgconf/system.h> // CYGPKG_KERNEL #include <pkgconf/libc_startup.h> // Configuration header // INCLUDES #include <cyg/infra/cyg_type.h> // Common type definitions and support #include <cyg/infra/cyg_trac.h> // Common tracing support #ifdef CYGPKG_KERNEL # include <pkgconf/kernel.h> // eCos kernel configuration # include <cyg/kernel/thread.hxx> // eCos thread support # include <cyg/kernel/thread.inl> #endif // FUNCTION PROTOTYPES externC void cyg_libc_invoke_main( CYG_ADDRWORD ); // EXTERNS #ifdef CYGSEM_LIBC_STARTUP_MAIN_THREAD extern Cyg_Thread cyg_libc_main_thread; // FUNCTIONS externC void cyg_iso_c_start( void ) { static int initialized=0; CYG_REPORT_FUNCNAME( "cyg_iso_c_start" ); CYG_REPORT_FUNCARGVOID(); if (initialized++ == 0) { CYG_TRACE0( true, "Resuming cyg_libc_main_thread" ); cyg_libc_main_thread.resume(); } CYG_REPORT_RETURN(); } // cyg_iso_c_start() // define an object that will automatically call cyg_iso_c_start() class cyg_libc_startup_dummy_constructor_class { public: cyg_libc_startup_dummy_constructor_class() { cyg_iso_c_start(); } }; static cyg_libc_startup_dummy_constructor_class cyg_libc_startup_obj CYGBLD_ATTRIB_INIT_PRI(CYG_INIT_LIBC); #elif defined( CYGSEM_LIBC_STARTUP_MAIN_INITCONTEXT ) // otherwise replace the default cyg_user_start(), but of course keep // it a weak symbol in case the user wants to override externC void cyg_user_start(void) CYGBLD_ATTRIB_WEAK; externC void cyg_user_start(void) { cyg_libc_invoke_main(0); } externC void cyg_iso_c_start( void ) { static int initialized=0; CYG_REPORT_FUNCNAME( "cyg_iso_c_start" ); CYG_REPORT_FUNCARGVOID(); // In case they want to explicitly invoke the C library from // cyg_user_start() themselves if (initialized++ == 0) { cyg_libc_invoke_main(0); } CYG_REPORT_RETURN(); } #else externC void cyg_iso_c_start( void ) {} #endif // EOF cstartup.cxx