Mercurial > ecos-v3_0-branch
diff packages/language/c/libc/startup/current/src/invokemain.cxx @ 115:6ed91473a1cd ecos-sw-2000-08-21
Merge from eCos master repository on 2000-08-21-22:40:54-BST
| author | jlarmour |
|---|---|
| date | Fri, 25 Aug 2000 17:32:38 +0000 |
| parents | |
| children | 678094f34118 |
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new file mode 100644 --- /dev/null +++ b/packages/language/c/libc/startup/current/src/invokemain.cxx @@ -0,0 +1,122 @@ +//======================================================================= +// +// invokemain.cxx +// +// Support for startup of ISO C environment +// +//======================================================================== +//####COPYRIGHTBEGIN#### +// +// ------------------------------------------- +// The contents of this file are subject to the Red Hat eCos Public License +// Version 1.1 (the "License"); you may not use this file except in +// compliance with the License. You may obtain a copy of the License at +// http://www.redhat.com/ +// +// Software distributed under the License is distributed on an "AS IS" +// basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the +// License for the specific language governing rights and limitations under +// the License. +// +// The Original Code is eCos - Embedded Configurable Operating System, +// released September 30, 1998. +// +// The Initial Developer of the Original Code is Red Hat. +// Portions created by Red Hat are +// Copyright (C) 1998, 1999, 2000 Red Hat, Inc. +// All Rights Reserved. +// ------------------------------------------- +// +//####COPYRIGHTEND#### +//======================================================================== +//#####DESCRIPTIONBEGIN#### +// +// Author(s): jlarmour +// Contributors: +// Date: 2000-04-30 +// Purpose: Provide entry point for thread which then calls main() +// Description: cyg_libc_invoke_main() is used as the entry point for +// the thread object that is created to call the +// user-supplied main() function. It sets up the arguments +// (if any) and invokes exit() if main() returns +// Usage: +// +//####DESCRIPTIONEND#### +// +//======================================================================== + +// CONFIGURATION + +#include <pkgconf/libc_startup.h> // Configuration header +#include <pkgconf/isoinfra.h> + +// INCLUDES + +#include <cyg/infra/cyg_type.h> // Common type definitions and support +#include <cyg/infra/cyg_trac.h> // Common tracing support +#include <cyg/infra/cyg_ass.h> // Common assertion support +#include <stdlib.h> // exit() + +// EXTERNS + +externC cyg_bool cyg_hal_stop_constructors; + +// FUNCTION PROTOTYPES + +externC int +main( int argc, char *argv[] ); + +externC void +cyg_hal_invoke_constructors(void); + +externC void +pthread_exit( void *value_ptr ); + +// STATICS + +#ifdef CYGSEM_LIBC_INVOKE_DEFAULT_STATIC_CONSTRUCTORS +class cyg_libc_dummy_constructor_class { +public: + cyg_libc_dummy_constructor_class(void) { ++cyg_hal_stop_constructors; } +}; + +static cyg_libc_dummy_constructor_class cyg_libc_dummy_constructor_obj + CYGBLD_ATTRIB_INIT_PRI(CYG_INIT_PREDEFAULT); +#endif + +// FUNCTIONS + +externC void +cyg_libc_invoke_main( CYG_ADDRWORD ) +{ + CYG_REPORT_FUNCNAME( "cyg_libc_invoke_main" ); + CYG_REPORT_FUNCARG1( "argument is %s", "ignored" ); + +#ifdef CYGSEM_LIBC_INVOKE_DEFAULT_STATIC_CONSTRUCTORS + // finish invoking constructors that weren't called by default + cyg_hal_invoke_constructors(); +#endif + + // argv[argc] must be NULL according to the ISO C standard 5.1.2.2.1 + char *temp_argv[] = CYGDAT_LIBC_ARGUMENTS ; + int rc; + + rc = main( (sizeof(temp_argv)/sizeof(char *)) - 1, &temp_argv[0] ); + + CYG_TRACE1( true, "main() has returned with code %d. Calling exit()", + rc ); + +#if CYGINT_ISO_PTHREAD_IMPL > 0 + // It is up to pthread_exit() to call exit() if needed + pthread_exit( (void *)rc ); + CYG_FAIL( "pthread_exit() returned!!!" ); +#else + exit(rc); + CYG_FAIL( "exit() returned!!!" ); +#endif + + CYG_REPORT_RETURN(); + +} // cyg_libc_invoke_main() + +// EOF invokemain.cxx
