Mercurial > ecos

comparison packages/language/c/libc/current/src/stdlib/malloc.cxx @ 2:443894e2e912 ecos-v1_2_1-release

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
Block commit of eCos version 1.2.1
author jlarmour
date Tue, 11 May 1999 12:24:34 +0000
parents 3111d98ba7b3
children e97d78785e2d
comparison
equal deleted inserted replaced
1:72f549f0d891 2:443894e2e912
1 //======================================================================== 1 //========================================================================
2 // 2 //
3 // malloc.cxx 3 // malloc.cxx
4 // 4 //
5 // Implementation of ANSI standard allocation routines 5 // Implementation of ISO C memory allocation routines
6 // 6 //
7 //======================================================================== 7 //========================================================================
8 //####COPYRIGHTBEGIN#### 8 //####COPYRIGHTBEGIN####
9 // 9 //
10 // ------------------------------------------- 10 // -------------------------------------------
20 // 20 //
21 // The Original Code is eCos - Embedded Cygnus Operating System, released 21 // The Original Code is eCos - Embedded Cygnus Operating System, released
22 // September 30, 1998. 22 // September 30, 1998.
23 // 23 //
24 // The Initial Developer of the Original Code is Cygnus. Portions created 24 // The Initial Developer of the Original Code is Cygnus. Portions created
25 // by Cygnus are Copyright (C) 1998 Cygnus Solutions. All Rights Reserved. 25 // by Cygnus are Copyright (C) 1998,1999 Cygnus Solutions. All Rights Reserved.
26 // ------------------------------------------- 26 // -------------------------------------------
27 // 27 //
28 //####COPYRIGHTEND#### 28 //####COPYRIGHTEND####
29 //======================================================================== 29 //========================================================================
30 //#####DESCRIPTIONBEGIN#### 30 //#####DESCRIPTIONBEGIN####
31 // 31 //
32 // Author(s): jlarmour@cygnus.co.uk 32 // Author(s): jlarmour
33 // Contributors: jlarmour@cygnus.co.uk 33 // Contributors: jlarmour
34 // Date: 1998-02-13 34 // Date: 1999-01-21
35 // Purpose: 35 // Purpose: Provides ISO C calloc(), malloc(), realloc() and free()
36 // Description: Implementation of ANSI standard allocation routines as per 36 // functions
37 // ANSI section 7.10.3 37 // Description: Implementation of ANSI standard allocation routines as per
38 // ISO C section 7.10.3
38 // Usage: 39 // Usage:
39 // 40 //
40 //####DESCRIPTIONEND#### 41 //####DESCRIPTIONEND####
41 // 42 //
42 //======================================================================== 43 //========================================================================
43 44
44 // CONFIGURATION 45 // CONFIGURATION
45 46
46 #include <pkgconf/libc.h> // Configuration header 47 #include <pkgconf/libc.h> // Configuration header
47 48
48 // Include the C library? 49 // Do we want these functions?
49 #ifdef CYGPKG_LIBC
50
51 // And do we want these functions?
52 #ifdef CYGPKG_LIBC_MALLOC 50 #ifdef CYGPKG_LIBC_MALLOC
53 51
54 // INCLUDES 52 // INCLUDES
55 53
56 #include <cyg/infra/cyg_type.h> // Common type definitions and support 54 #include <cyg/infra/cyg_type.h> // Common type definitions and support
57 #include <cyg/infra/cyg_trac.h> // Common tracing support 55 #include <cyg/infra/cyg_trac.h> // Common tracing support
58 #include <cyg/infra/cyg_ass.h> // Common assertion support 56 #include <cyg/infra/cyg_ass.h> // Common assertion support
59 #include <string.h> // For memset() and memcpy() 57 #include <string.h> // For memset() and memcpy()
60 #include <stdlib.h> // header for this file 58 #include <stdlib.h> // header for this file
59 #include <pkgconf/kernel.h> // kernel configuration
61 #include <cyg/kernel/memvar.hxx> // Kernel variable size block allocator 60 #include <cyg/kernel/memvar.hxx> // Kernel variable size block allocator
62 61
63 #include "clibincl/stdlibsupp.hxx" // Additional support for stdlib stuff 62 #include "clibincl/stdlibsupp.hxx" // Additional support for stdlib stuff
64 // internal to the C library 63 // internal to the C library
65 64
66 // EXPORTED SYMBOLS 65 // EXPORTED SYMBOLS
67 66
68 externC void * 67 externC void *
69 calloc( size_t, size_t ) CYGPRI_LIBC_WEAK_ALIAS("_calloc"); 68 calloc( size_t, size_t ) CYGBLD_ATTRIB_WEAK_ALIAS(_calloc);
70 69
71 externC void 70 externC void
72 free( void * ) CYGPRI_LIBC_WEAK_ALIAS("_free"); 71 free( void * ) CYGBLD_ATTRIB_WEAK_ALIAS(_free);
73 72
74 externC void * 73 externC void *
75 malloc( size_t ) CYGPRI_LIBC_WEAK_ALIAS("_malloc"); 74 malloc( size_t ) CYGBLD_ATTRIB_WEAK_ALIAS(_malloc);
76 75
77 externC void * 76 externC void *
78 realloc( void *, size_t ) CYGPRI_LIBC_WEAK_ALIAS("_realloc"); 77 realloc( void *, size_t ) CYGBLD_ATTRIB_WEAK_ALIAS(_realloc);
79 78
80 79
81 // STATIC VARIABLES 80 // STATIC VARIABLES
82 81
83 // the data space for the memory pool 82 // the data space for the memory pool - can be externally overriden
84 static cyg_uint8 pooldata[ CYGNUM_LIBC_MALLOC_MEMPOOL_SIZE ]; 83 // FIXME: but should be in different file for this to work
84 cyg_uint8 cyg_libc_malloc_memorypool[ CYGNUM_LIBC_MALLOC_MEMPOOL_SIZE ]
85 CYGBLD_ATTRIB_WEAK;
85 86
86 // the memory pool object itself 87 // the memory pool object itself
87 static Cyg_Mempool_Variable pool CYG_INIT_PRIORITY( LIBC ) = 88 static Cyg_Mempool_Variable pool CYG_INIT_PRIORITY( LIBC ) =
88 Cyg_Mempool_Variable( pooldata, CYGNUM_LIBC_MALLOC_MEMPOOL_SIZE ); 89 Cyg_Mempool_Variable( cyg_libc_malloc_memorypool,
90 CYGNUM_LIBC_MALLOC_MEMPOOL_SIZE );
89 91
90 92
91 // FUNCTIONS 93 // FUNCTIONS
92 94
93 void * 95 void *
216 return ret_ptr; 218 return ret_ptr;
217 } // _realloc() 219 } // _realloc()
218 220
219 #endif // ifdef CYGPKG_LIBC_MALLOC 221 #endif // ifdef CYGPKG_LIBC_MALLOC
220 222
221 #endif // ifdef CYGPKG_LIBC
222
223 // EOF malloc.cxx 223 // EOF malloc.cxx