| 1 | /* Remap a virtual memory address. Linux specific syscall. |
|---|
| 2 | Copyright (C) 2021-2024 Free Software Foundation, Inc. |
|---|
| 3 | This file is part of the GNU C Library. |
|---|
| 4 | |
|---|
| 5 | The GNU C Library is free software; you can redistribute it and/or |
|---|
| 6 | modify it under the terms of the GNU Lesser General Public |
|---|
| 7 | License as published by the Free Software Foundation; either |
|---|
| 8 | version 2.1 of the License, or (at your option) any later version. |
|---|
| 9 | |
|---|
| 10 | The GNU C Library is distributed in the hope that it will be useful, |
|---|
| 11 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
|---|
| 12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
|---|
| 13 | Lesser General Public License for more details. |
|---|
| 14 | |
|---|
| 15 | You should have received a copy of the GNU Lesser General Public |
|---|
| 16 | License along with the GNU C Library; if not, see |
|---|
| 17 | <https://www.gnu.org/licenses/>. */ |
|---|
| 18 | |
|---|
| 19 | #include <sys/mman.h> |
|---|
| 20 | #include <sysdep.h> |
|---|
| 21 | #include <stdarg.h> |
|---|
| 22 | #include <stddef.h> |
|---|
| 23 | |
|---|
| 24 | void * |
|---|
| 25 | __mremap (void *addr, size_t old_len, size_t new_len, int flags, ...) |
|---|
| 26 | { |
|---|
| 27 | va_list va; |
|---|
| 28 | void *new_addr = NULL; |
|---|
| 29 | |
|---|
| 30 | if (flags & MREMAP_FIXED) |
|---|
| 31 | { |
|---|
| 32 | va_start (va, flags); |
|---|
| 33 | new_addr = va_arg (va, void *); |
|---|
| 34 | va_end (va); |
|---|
| 35 | } |
|---|
| 36 | |
|---|
| 37 | return (void *) INLINE_SYSCALL_CALL (mremap, addr, old_len, new_len, flags, |
|---|
| 38 | new_addr); |
|---|
| 39 | } |
|---|
| 40 | libc_hidden_def (__mremap) |
|---|
| 41 | weak_alias (__mremap, mremap) |
|---|
| 42 | |
|---|
