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-rw-r--r--cpukit/libcsupport/src/malloc.c280
1 files changed, 0 insertions, 280 deletions
diff --git a/cpukit/libcsupport/src/malloc.c b/cpukit/libcsupport/src/malloc.c
deleted file mode 100644
index 7d0ba04143..0000000000
--- a/cpukit/libcsupport/src/malloc.c
+++ /dev/null
@@ -1,280 +0,0 @@
-/*
- * RTEMS Malloc Family Implementation
- *
- *
- * COPYRIGHT (c) 1989, 1990, 1991, 1992, 1993, 1994.
- * On-Line Applications Research Corporation (OAR).
- * All rights assigned to U.S. Government, 1994.
- *
- * This material may be reproduced by or for the U.S. Government pursuant
- * to the copyright license under the clause at DFARS 252.227-7013. This
- * notice must appear in all copies of this file and its derivatives.
- *
- * $Id$
- */
-
-#include <rtems.h>
-#ifdef RTEMS_LIBC
-#include <memory.h>
-#endif
-#include "libcsupport.h"
-#ifdef RTEMS_NEWLIB
-#include <sys/reent.h>
-#endif
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <sys/types.h>
-#include <assert.h>
-#include <errno.h>
-#include <string.h>
-
-/*
- * XXX: Do we really need to duplicate these? It appears that they
- * only cause typing problems.
- */
-
-#if 0
-void *malloc(size_t);
-void *calloc(size_t, size_t);
-void *realloc(void *, size_t);
-void free(void *);
-void *sbrk(size_t);
-#endif
-
-rtems_id RTEMS_Malloc_Heap;
-size_t RTEMS_Malloc_Sbrk_amount;
-
-void RTEMS_Malloc_Initialize(
- void *start,
- size_t length,
- size_t sbrk_amount
-)
-{
- rtems_status_code status;
- void *starting_address;
- rtems_unsigned32 u32_address;
-
- /*
- * If the starting address is 0 then we are to attempt to
- * get length worth of memory using sbrk. Make sure we
- * align the address that we get back.
- */
-
- starting_address = start;
-
- if (!starting_address) {
- u32_address = (unsigned int)sbrk(length);
-
- if (u32_address == -1) {
- rtems_fatal_error_occurred( RTEMS_NO_MEMORY );
- /* DOES NOT RETURN!!! */
- }
-
- if (u32_address & (CPU_ALIGNMENT-1)) {
- u32_address = (u32_address + CPU_ALIGNMENT) & ~(CPU_ALIGNMENT-1);
- /* XXX: if we do any alignment .. then length should be shortened */
- }
-
- starting_address = (void *)u32_address;
- }
-
- /*
- * Unfortunately we cannot use assert if this fails because if this
- * has failed we do not have a heap and if we do not have a heap
- * STDIO cannot work because there will be no buffers.
- */
-
- status = rtems_region_create(
- rtems_build_name( 'H', 'E', 'A', 'P' ),
- starting_address,
- length,
- 8, /* XXX : use CPU dependent RTEMS constant */
- RTEMS_DEFAULT_ATTRIBUTES,
- &RTEMS_Malloc_Heap
- );
- if ( status != RTEMS_SUCCESSFUL )
- rtems_fatal_error_occurred( status );
-}
-
-void *malloc(
- size_t size
-)
-{
- void *return_this;
- void *starting_address;
- rtems_unsigned32 the_size;
- rtems_unsigned32 sbrk_amount;
- rtems_status_code status;
-
- if ( !size )
- return (void *) 0;
-
- /*
- * Try to give a segment in the current region if there is not
- * enough space then try to grow the region using rtems_region_extend().
- * If this fails then return a NULL pointer.
- */
-
- status = rtems_region_get_segment(
- RTEMS_Malloc_Heap,
- size,
- RTEMS_NO_WAIT,
- RTEMS_NO_TIMEOUT,
- &return_this
- );
-
- if ( status != RTEMS_SUCCESSFUL ) {
- /*
- * Round to the "requested sbrk amount" so hopefully we won't have
- * to grow again for a while. This effectively does sbrk() calls
- * in "page" amounts.
- */
-
- sbrk_amount = RTEMS_Malloc_Sbrk_amount;
-
- if ( sbrk_amount == 0 )
- return (void *) 0;
-
- the_size = ((size + sbrk_amount) / sbrk_amount * sbrk_amount);
-
- if (((rtems_unsigned32)starting_address = sbrk(the_size)) == -1)
- return (void *) 0;
-
- /*
- fprintf(stderr, "Extended the C heap starting at 0x%x for %d bytes\n",
- (unsigned32)starting_address, the_size);
- */
-
- status = rtems_region_extend(
- RTEMS_Malloc_Heap,
- starting_address,
- the_size
- );
- if ( status != RTEMS_SUCCESSFUL ) {
- sbrk(-the_size);
- return(FALSE);
- errno = ENOMEM;
- return (void *) 0;
- }
- status = rtems_region_get_segment(
- RTEMS_Malloc_Heap,
- size,
- RTEMS_NO_WAIT,
- RTEMS_NO_TIMEOUT,
- &return_this
- );
- if ( status != RTEMS_SUCCESSFUL ) {
- errno = ENOMEM;
- return (void *) 0;
- }
- }
-
- return return_this;
-}
-
-void *calloc(
- size_t nelem,
- size_t elsize
-)
-{
- register char *cptr;
- int length;
-
- length = nelem * elsize;
- cptr = malloc( length );
- if ( cptr )
- memset( cptr, '\0', length );
-
- return cptr;
-}
-
-void *realloc(
- void *ptr,
- size_t size
-)
-{
- rtems_unsigned32 old_size;
- rtems_status_code status;
- char *new_area;
-
- if ( !ptr )
- return malloc( size );
-
- if ( !size ) {
- free( ptr );
- return (void *) 0;
- }
-
- status = rtems_region_get_segment_size( RTEMS_Malloc_Heap, ptr, &old_size );
- if ( status != RTEMS_SUCCESSFUL ) {
- errno = EINVAL;
- return (void *) 0;
- }
-
- new_area = malloc( size );
- if ( !new_area ) {
- free( ptr );
- return (void *) 0;
- }
-
- memcpy( new_area, ptr, (size < old_size) ? size : old_size );
- free( ptr );
-
- return new_area;
-
-}
-
-void free(
- void *ptr
-)
-{
- rtems_status_code status;
-
- if ( !ptr )
- return;
-
- status = rtems_region_return_segment( RTEMS_Malloc_Heap, ptr );
- if ( status != RTEMS_SUCCESSFUL ) {
- errno = EINVAL;
- assert( 0 );
- }
-}
-
-/*
- * "Reentrant" versions of the above routines implemented above.
- */
-
-#ifdef RTEMS_NEWLIB
-void *malloc_r(
- struct _reent *ignored,
- size_t size
-)
-{
- return malloc( size );
-}
-
-void *calloc_r(
- size_t nelem,
- size_t elsize
-)
-{
- return calloc( nelem, elsize );
-}
-
-void *realloc_r(
- void *ptr,
- size_t size
-)
-{
- return realloc_r( ptr, size );
-}
-
-void free_r(
- void *ptr
-)
-{
- free( ptr );
-}
-#endif
-
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