OpenCores
URL https://opencores.org/ocsvn/openrisc_me/openrisc_me/trunk

Subversion Repositories openrisc_me

[/] [openrisc/] [trunk/] [rtos/] [ecos-2.0/] [packages/] [language/] [c/] [libc/] [setjmp/] [v2_0/] [src/] [longjmp.cxx] - Blame information for rev 174

Details | Compare with Previous | View Log

Line No. Rev Author Line
1 27 unneback
//===========================================================================
2
//
3
//      longjmp.cxx
4
//
5
//      ISO C standard longjmp() function
6
//
7
//===========================================================================
8
//####ECOSGPLCOPYRIGHTBEGIN####
9
// -------------------------------------------
10
// This file is part of eCos, the Embedded Configurable Operating System.
11
// Copyright (C) 1998, 1999, 2000, 2001, 2002 Red Hat, Inc.
12
//
13
// eCos is free software; you can redistribute it and/or modify it under
14
// the terms of the GNU General Public License as published by the Free
15
// Software Foundation; either version 2 or (at your option) any later version.
16
//
17
// eCos is distributed in the hope that it will be useful, but WITHOUT ANY
18
// WARRANTY; without even the implied warranty of MERCHANTABILITY or
19
// FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
20
// for more details.
21
//
22
// You should have received a copy of the GNU General Public License along
23
// with eCos; if not, write to the Free Software Foundation, Inc.,
24
// 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
25
//
26
// As a special exception, if other files instantiate templates or use macros
27
// or inline functions from this file, or you compile this file and link it
28
// with other works to produce a work based on this file, this file does not
29
// by itself cause the resulting work to be covered by the GNU General Public
30
// License. However the source code for this file must still be made available
31
// in accordance with section (3) of the GNU General Public License.
32
//
33
// This exception does not invalidate any other reasons why a work based on
34
// this file might be covered by the GNU General Public License.
35
//
36
// Alternative licenses for eCos may be arranged by contacting Red Hat, Inc.
37
// at http://sources.redhat.com/ecos/ecos-license/
38
// -------------------------------------------
39
//####ECOSGPLCOPYRIGHTEND####
40
//===========================================================================
41
//#####DESCRIPTIONBEGIN####
42
//
43
// Author(s):    jlarmour
44
// Contributors: 
45
// Date:         2000-04-30
46
// Purpose:     
47
// Description:  Implements ISO standard non-local jump function longjmp()
48
//               per ISO C para 7.6.2.1. This is the "real" alternative to
49
//               the inline version of longjmp()
50
//             
51
// Usage:       
52
//
53
//####DESCRIPTIONEND####
54
//
55
//===========================================================================
56
 
57
// CONFIGURATION
58
 
59
#include <pkgconf/libc_setjmp.h>   // Configuration header
60
 
61
// INCLUDES
62
 
63
#include <cyg/infra/cyg_type.h>    // Common type definitions and support
64
#include <cyg/infra/cyg_trac.h>    // Common tracing code
65
#include <cyg/infra/cyg_ass.h>     // Common assertion code
66
#include <cyg/hal/hal_arch.h>      // HAL architecture specific implementation
67
 
68
// We don't want the inline version of longjmp() defined here
69
#ifdef CYGIMP_LIBC_SETJMP_INLINES
70
# undef CYGIMP_LIBC_SETJMP_INLINES
71
#endif
72
 
73
#include <setjmp.h>                // Header for setjmp/longjmp
74
 
75
 
76
// FUNCTIONS
77
 
78
void
79
longjmp( jmp_buf cyg_buf, int cyg_val)
80
{
81
    CYG_REPORT_FUNCNAME( "longjmp" );
82
    CYG_REPORT_FUNCARG2( "&cyg_buf=%08x, cyg_val=%d", &cyg_buf, cyg_val );
83
 
84
    // ANSI says that if we are passed cyg_val==0, then we change it to 1
85
    if (cyg_val == 0)
86
        ++cyg_val;
87
 
88
    // we let the HAL do the work
89
 
90
    HAL_REORDER_BARRIER(); // prevent any chance of optimisation re-ordering
91
    hal_longjmp( cyg_buf, cyg_val );
92
    HAL_REORDER_BARRIER(); // prevent any chance of optimisation re-ordering
93
 
94
#ifdef CYGDBG_USE_ASSERTS
95
    CYG_ASSERT( 0, "longjmp should not have reached this point!" );
96
#else
97
    for (;;)
98
        CYG_EMPTY_STATEMENT;
99
#endif
100
} // longjmp()
101
 
102
// EOF longjmp.cxx

powered by: WebSVN 2.1.0

© copyright 1999-2024 OpenCores.org, equivalent to Oliscience, all rights reserved. OpenCores®, registered trademark.