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[/] [openrisc/] [trunk/] [rtos/] [ecos-2.0/] [packages/] [language/] [c/] [libc/] [setjmp/] [v2_0/] [src/] [longjmp.cxx] - Rev 27
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//=========================================================================== // // longjmp.cxx // // ISO C standard longjmp() function // //=========================================================================== //####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: Implements ISO standard non-local jump function longjmp() // per ISO C para 7.6.2.1. This is the "real" alternative to // the inline version of longjmp() // // Usage: // //####DESCRIPTIONEND#### // //=========================================================================== // CONFIGURATION #include <pkgconf/libc_setjmp.h> // Configuration header // INCLUDES #include <cyg/infra/cyg_type.h> // Common type definitions and support #include <cyg/infra/cyg_trac.h> // Common tracing code #include <cyg/infra/cyg_ass.h> // Common assertion code #include <cyg/hal/hal_arch.h> // HAL architecture specific implementation // We don't want the inline version of longjmp() defined here #ifdef CYGIMP_LIBC_SETJMP_INLINES # undef CYGIMP_LIBC_SETJMP_INLINES #endif #include <setjmp.h> // Header for setjmp/longjmp // FUNCTIONS void longjmp( jmp_buf cyg_buf, int cyg_val) { CYG_REPORT_FUNCNAME( "longjmp" ); CYG_REPORT_FUNCARG2( "&cyg_buf=%08x, cyg_val=%d", &cyg_buf, cyg_val ); // ANSI says that if we are passed cyg_val==0, then we change it to 1 if (cyg_val == 0) ++cyg_val; // we let the HAL do the work HAL_REORDER_BARRIER(); // prevent any chance of optimisation re-ordering hal_longjmp( cyg_buf, cyg_val ); HAL_REORDER_BARRIER(); // prevent any chance of optimisation re-ordering #ifdef CYGDBG_USE_ASSERTS CYG_ASSERT( 0, "longjmp should not have reached this point!" ); #else for (;;) CYG_EMPTY_STATEMENT; #endif } // longjmp() // EOF longjmp.cxx
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