projects / deliverable / binutils-gdb.git / blame
| Commit | Line | Data |
|---|---|---|
| f4382c45 TT |
1 | /* Low-level DWARF 2 reading code |
| 2 | ||
| 3 | Copyright (C) 1994-2020 Free Software Foundation, Inc. | |
| 4 | ||
| 5 | Adapted by Gary Funck (gary@intrepid.com), Intrepid Technology, | |
| 6 | Inc. with support from Florida State University (under contract | |
| 7 | with the Ada Joint Program Office), and Silicon Graphics, Inc. | |
| 8 | Initial contribution by Brent Benson, Harris Computer Systems, Inc., | |
| 9 | based on Fred Fish's (Cygnus Support) implementation of DWARF 1 | |
| 10 | support. | |
| 11 | ||
| 12 | This file is part of GDB. | |
| 13 | ||
| 14 | This program is free software; you can redistribute it and/or modify | |
| 15 | it under the terms of the GNU General Public License as published by | |
| 16 | the Free Software Foundation; either version 3 of the License, or | |
| 17 | (at your option) any later version. | |
| 18 | ||
| 19 | This program is distributed in the hope that it will be useful, | |
| 20 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 21 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
| 22 | GNU General Public License for more details. | |
| 23 | ||
| 24 | You should have received a copy of the GNU General Public License | |
| 25 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ | |
| 26 | ||
| 27 | #ifndef GDB_DWARF2_LEB_H | |
| 28 | #define GDB_DWARF2_LEB_H | |
| 29 | ||
| 30 | /* Read dwarf information from a buffer. */ | |
| 31 | ||
| 32 | static inline unsigned int | |
| 33 | read_1_byte (bfd *abfd, const gdb_byte *buf) | |
| 34 | { | |
| 35 | return bfd_get_8 (abfd, buf); | |
| 36 | } | |
| 37 | ||
| 38 | static inline int | |
| 39 | read_1_signed_byte (bfd *abfd, const gdb_byte *buf) | |
| 40 | { | |
| 41 | return bfd_get_signed_8 (abfd, buf); | |
| 42 | } | |
| 43 | ||
| 44 | static inline unsigned int | |
| 45 | read_2_bytes (bfd *abfd, const gdb_byte *buf) | |
| 46 | { | |
| 47 | return bfd_get_16 (abfd, buf); | |
| 48 | } | |
| 49 | ||
| 50 | static inline int | |
| 51 | read_2_signed_bytes (bfd *abfd, const gdb_byte *buf) | |
| 52 | { | |
| 53 | return bfd_get_signed_16 (abfd, buf); | |
| 54 | } | |
| 55 | ||
| 56 | /* Read the next three bytes (little-endian order) as an unsigned integer. */ | |
| 57 | static inline unsigned int | |
| 58 | read_3_bytes (bfd *abfd, const gdb_byte *buf) | |
| 59 | { | |
| 60 | unsigned int result = 0; | |
| 61 | for (int i = 0; i < 3; ++i) | |
| 62 | { | |
| 63 | unsigned char byte = bfd_get_8 (abfd, buf); | |
| 64 | buf++; | |
| 65 | result |= ((unsigned int) byte << (i * 8)); | |
| 66 | } | |
| 67 | return result; | |
| 68 | } | |
| 69 | ||
| 70 | static inline unsigned int | |
| 71 | read_4_bytes (bfd *abfd, const gdb_byte *buf) | |
| 72 | { | |
| 73 | return bfd_get_32 (abfd, buf); | |
| 74 | } | |
| 75 | ||
| 76 | static inline int | |
| 77 | read_4_signed_bytes (bfd *abfd, const gdb_byte *buf) | |
| 78 | { | |
| 79 | return bfd_get_signed_32 (abfd, buf); | |
| 80 | } | |
| 81 | ||
| 82 | static inline ULONGEST | |
| 83 | read_8_bytes (bfd *abfd, const gdb_byte *buf) | |
| 84 | { | |
| 85 | return bfd_get_64 (abfd, buf); | |
| 86 | } | |
| 87 | ||
| 88 | extern LONGEST read_signed_leb128 (bfd *, const gdb_byte *, unsigned int *); | |
| 89 | ||
| 90 | extern ULONGEST read_unsigned_leb128 (bfd *, const gdb_byte *, unsigned int *); | |
| 91 | ||
| 92 | #endif /* GDB_DWARF2_LEB_H */ |