| 1 | /* The memory range data structure, and associated utilities. |
| 2 | |
| 3 | Copyright (C) 2010-2019 Free Software Foundation, Inc. |
| 4 | |
| 5 | This file is part of GDB. |
| 6 | |
| 7 | This program is free software; you can redistribute it and/or modify |
| 8 | it under the terms of the GNU General Public License as published by |
| 9 | the Free Software Foundation; either version 3 of the License, or |
| 10 | (at your option) any later version. |
| 11 | |
| 12 | This program is distributed in the hope that it will be useful, |
| 13 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 15 | GNU General Public License for more details. |
| 16 | |
| 17 | You should have received a copy of the GNU General Public License |
| 18 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ |
| 19 | |
| 20 | #ifndef MEMRANGE_H |
| 21 | #define MEMRANGE_H |
| 22 | |
| 23 | #include "gdbsupport/vec.h" |
| 24 | |
| 25 | /* Defines a [START, START + LENGTH) memory range. */ |
| 26 | |
| 27 | struct mem_range |
| 28 | { |
| 29 | mem_range () = default; |
| 30 | |
| 31 | mem_range (CORE_ADDR start_, int length_) |
| 32 | : start (start_), length (length_) |
| 33 | {} |
| 34 | |
| 35 | bool operator< (const mem_range &other) const |
| 36 | { |
| 37 | return this->start < other.start; |
| 38 | } |
| 39 | |
| 40 | bool operator== (const mem_range &other) const |
| 41 | { |
| 42 | return (this->start == other.start |
| 43 | && this->length == other.length); |
| 44 | } |
| 45 | |
| 46 | /* Lowest address in the range. */ |
| 47 | CORE_ADDR start; |
| 48 | |
| 49 | /* Length of the range. */ |
| 50 | int length; |
| 51 | }; |
| 52 | |
| 53 | /* Returns true if the ranges defined by [start1, start1+len1) and |
| 54 | [start2, start2+len2) overlap. */ |
| 55 | |
| 56 | extern int mem_ranges_overlap (CORE_ADDR start1, int len1, |
| 57 | CORE_ADDR start2, int len2); |
| 58 | |
| 59 | /* Returns true if ADDR is in RANGE. */ |
| 60 | |
| 61 | extern int address_in_mem_range (CORE_ADDR addr, |
| 62 | const struct mem_range *range); |
| 63 | |
| 64 | /* Sort ranges by start address, then coalesce contiguous or |
| 65 | overlapping ranges. */ |
| 66 | |
| 67 | extern void normalize_mem_ranges (std::vector<mem_range> *memory); |
| 68 | |
| 69 | #endif |