65 lines
2.8 KiB
C
65 lines
2.8 KiB
C
/* Iteration over virtual memory areas.
|
|
Copyright (C) 2011-2021 Free Software Foundation, Inc.
|
|
Written by Bruno Haible <bruno@clisp.org>, 2011.
|
|
|
|
This program 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 3 of the License, or
|
|
(at your option) any later version.
|
|
|
|
This program 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 this program. If not, see <https://www.gnu.org/licenses/>. */
|
|
|
|
#ifndef _VMA_ITER_H
|
|
#define _VMA_ITER_H
|
|
|
|
#include <stdint.h>
|
|
|
|
#ifdef __cplusplus
|
|
extern "C" {
|
|
#endif
|
|
|
|
|
|
/* Bit mask for the FLAGS parameter of a vma_iterate callback function. */
|
|
#define VMA_PROT_READ (1<<0)
|
|
#define VMA_PROT_WRITE (1<<1)
|
|
#define VMA_PROT_EXECUTE (1<<2)
|
|
|
|
typedef int (*vma_iterate_callback_fn) (void *data,
|
|
uintptr_t start, uintptr_t end,
|
|
unsigned int flags);
|
|
|
|
/* Iterate over the virtual memory areas of the current process.
|
|
If such iteration is supported, the callback is called once for every
|
|
virtual memory area, in ascending order, with the following arguments:
|
|
- DATA is the same argument as passed to vma_iterate.
|
|
- START is the address of the first byte in the area, page-aligned.
|
|
- END is the address of the last byte in the area plus 1, page-aligned.
|
|
Note that it may be 0 for the last area in the address space.
|
|
- FLAGS is a combination of the VMA_* bits.
|
|
If the callback returns 0, the iteration continues. If it returns 1,
|
|
the iteration terminates prematurely.
|
|
This function may open file descriptors, but does not call malloc().
|
|
Return 0 if all went well, or -1 in case of error. */
|
|
extern int vma_iterate (vma_iterate_callback_fn callback, void *data);
|
|
|
|
/* The macro VMA_ITERATE_SUPPORTED indicates that vma_iterate is supported on
|
|
this platform.
|
|
Note that even when this macro is defined, vma_iterate() may still fail to
|
|
find any virtual memory area, for example if /proc is not mounted. */
|
|
#if defined __linux__ || defined __ANDROID__ || defined __GNU__ || defined __FreeBSD_kernel__ || defined __FreeBSD__ || defined __DragonFly__ || defined __NetBSD__ || defined __sgi || defined __osf__ || defined __sun || HAVE_PSTAT_GETPROCVM || (defined __APPLE__ && defined __MACH__) || defined _WIN32 || defined __CYGWIN__ || defined __BEOS__ || defined __HAIKU__ || defined __minix || HAVE_MQUERY
|
|
# define VMA_ITERATE_SUPPORTED 1
|
|
#endif
|
|
|
|
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|
|
|
|
#endif /* _VMA_ITER_H */
|