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2000-10-18 Joel Sherrill <joel@OARcorp.com>

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* libc/Makefile.am: Added mallocfreespace.c.
	* libc/mallocfreespace.c: New file based on work by Nick Simon
	<Nick.SIMON@syntegra.bt.co.uk> which he included in malloc.c.
	* libc/libcsupport.h: Added prototype for malloc_free_space().
This commit is contained in:
Joel Sherrill
2000-10-18 15:02:06 +00:00
parent b541e1f860
commit 3815a2b73c
10 changed files with 133 additions and 2 deletions
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1
c/src/exec/libcsupport/include/rtems/libcsupport.h
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@@ -33,6 +33,7 @@ extern void malloc_walk(size_t source, size_t printf_enabled);
extern void libc_init(int reentrant);
extern int host_errno(void);
extern void fix_syscall_errno(void);
extern size_t malloc_free_space();
#ifdef __cplusplus
}

2
c/src/exec/libcsupport/src/Makefile.am
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@@ -37,7 +37,7 @@ SYSTEM_CALL_C_FILES = open.c close.c read.c write.c lseek.c ioctl.c mkdir.c \
DIRECTORY_SCAN_C_FILES = opendir.c closedir.c readdir.c rewinddir.c \
scandir.c seekdir.c telldir.c getcwd.c
MALLOC_C_FILES = malloc.c __brk.c __sbrk.c
MALLOC_C_FILES = malloc.c mallocfreespace.c __brk.c __sbrk.c
PASSWORD_GROUP_C_FILES = getpwent.c getgrent.c

40
c/src/exec/libcsupport/src/mallocfreespace.c Normal file
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@@ -0,0 +1,40 @@
/*
* RTEMS Malloc Get Status Information
*
*
* COPYRIGHT (c) 1989-2000.
* On-Line Applications Research Corporation (OAR).
*
* The license and distribution terms for this file may be
* found in the file LICENSE in this distribution or at
* http://www.OARcorp.com/rtems/license.html.
*
* $Id$
*/
#define __RTEMS_VIOLATE_KERNEL_VISIBILITY__
#include <rtems.h>
#include "libcsupport.h"
#include <stdio.h>
#include <stdlib.h>
#include <sys/types.h>
#include <assert.h>
#include <errno.h>
#include <string.h>
extern rtems_id RTEMS_Malloc_Heap;
/*
* Find amount of free heap remaining
*/
size_t malloc_free_space( void )
{
region_information_block heap_info;
if ( region_get_information( RTEMS_Malloc_Heap, &heap_info ) ) {
return (size_t) heap_info.free_size;
}
return (size_t) -1;
}

7
c/src/lib/ChangeLog
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@@ -1,4 +1,11 @@
2000-10-18 Joel Sherrill <joel@OARcorp.com>
* libc/Makefile.am: Added mallocfreespace.c.
* libc/mallocfreespace.c: New file based on work by Nick Simon
<Nick.SIMON@syntegra.bt.co.uk> which he included in malloc.c.
* libc/libcsupport.h: Added prototype for malloc_free_space().
2000-10-18 Joel Sherrill <joel@OARcorp.com>
* libc/fcntl.c: Do not require every filesystem to have an fcntl()

1
c/src/lib/include/rtems/libcsupport.h
View File

@@ -33,6 +33,7 @@ extern void malloc_walk(size_t source, size_t printf_enabled);
extern void libc_init(int reentrant);
extern int host_errno(void);
extern void fix_syscall_errno(void);
extern size_t malloc_free_space();
#ifdef __cplusplus
}

2
c/src/lib/libc/Makefile.am
View File

@@ -37,7 +37,7 @@ SYSTEM_CALL_C_FILES = open.c close.c read.c write.c lseek.c ioctl.c mkdir.c \
DIRECTORY_SCAN_C_FILES = opendir.c closedir.c readdir.c rewinddir.c \
scandir.c seekdir.c telldir.c getcwd.c
MALLOC_C_FILES = malloc.c __brk.c __sbrk.c
MALLOC_C_FILES = malloc.c mallocfreespace.c __brk.c __sbrk.c
PASSWORD_GROUP_C_FILES = getpwent.c getgrent.c

1
c/src/lib/libc/libcsupport.h
View File

@@ -33,6 +33,7 @@ extern void malloc_walk(size_t source, size_t printf_enabled);
extern void libc_init(int reentrant);
extern int host_errno(void);
extern void fix_syscall_errno(void);
extern size_t malloc_free_space();
#ifdef __cplusplus
}

40
c/src/lib/libc/mallocfreespace.c Normal file
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@@ -0,0 +1,40 @@
/*
* RTEMS Malloc Get Status Information
*
*
* COPYRIGHT (c) 1989-2000.
* On-Line Applications Research Corporation (OAR).
*
* The license and distribution terms for this file may be
* found in the file LICENSE in this distribution or at
* http://www.OARcorp.com/rtems/license.html.
*
* $Id$
*/
#define __RTEMS_VIOLATE_KERNEL_VISIBILITY__
#include <rtems.h>
#include "libcsupport.h"
#include <stdio.h>
#include <stdlib.h>
#include <sys/types.h>
#include <assert.h>
#include <errno.h>
#include <string.h>
extern rtems_id RTEMS_Malloc_Heap;
/*
* Find amount of free heap remaining
*/
size_t malloc_free_space( void )
{
region_information_block heap_info;
if ( region_get_information( RTEMS_Malloc_Heap, &heap_info ) ) {
return (size_t) heap_info.free_size;
}
return (size_t) -1;
}

1
cpukit/libcsupport/include/rtems/libcsupport.h
View File

@@ -33,6 +33,7 @@ extern void malloc_walk(size_t source, size_t printf_enabled);
extern void libc_init(int reentrant);
extern int host_errno(void);
extern void fix_syscall_errno(void);
extern size_t malloc_free_space();
#ifdef __cplusplus
}

40
cpukit/libcsupport/src/mallocfreespace.c Normal file
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@@ -0,0 +1,40 @@
/*
* RTEMS Malloc Get Status Information
*
*
* COPYRIGHT (c) 1989-2000.
* On-Line Applications Research Corporation (OAR).
*
* The license and distribution terms for this file may be
* found in the file LICENSE in this distribution or at
* http://www.OARcorp.com/rtems/license.html.
*
* $Id$
*/
#define __RTEMS_VIOLATE_KERNEL_VISIBILITY__
#include <rtems.h>
#include "libcsupport.h"
#include <stdio.h>
#include <stdlib.h>
#include <sys/types.h>
#include <assert.h>
#include <errno.h>
#include <string.h>
extern rtems_id RTEMS_Malloc_Heap;
/*
* Find amount of free heap remaining
*/
size_t malloc_free_space( void )
{
region_information_block heap_info;
if ( region_get_information( RTEMS_Malloc_Heap, &heap_info ) ) {
return (size_t) heap_info.free_size;
}
return (size_t) -1;
}