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f4382c45a4
This moves some scalar-unpacking code into a couple of new files, dwarf2/leb.h and dwarf2/leb.c. gdb/ChangeLog 2020-02-08 Tom Tromey <tom@tromey.com> * dwarf2read.h (read_unsigned_leb128): Don't declare. * dwarf2read.c (read_1_byte, read_1_signed_byte, read_2_bytes) (read_2_signed_bytes, read_3_bytes, read_4_bytes) (read_4_signed_bytes, read_8_bytes): Move to dwarf2/leb.h. (read_unsigned_leb128, read_signed_leb128): Move to dwarf2/leb.c. * dwarf2/leb.h: New file, from dwarf2read.c. * dwarf2/leb.c: New file, from dwarf2read.c. * dwarf2-frame.c (read_1_byte, read_4_bytes, read_8_bytes): Remove. * Makefile.in (CONFIG_SRC_SUBDIR): Add dwarf2. (COMMON_SFILES): Add dwarf2/leb.c. Change-Id: Idd19647686c8f959d226a95fdfca4db47c6e96d0
93 lines
2.5 KiB
C
93 lines
2.5 KiB
C
/* Low-level DWARF 2 reading code
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Copyright (C) 1994-2020 Free Software Foundation, Inc.
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Adapted by Gary Funck (gary@intrepid.com), Intrepid Technology,
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Inc. with support from Florida State University (under contract
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with the Ada Joint Program Office), and Silicon Graphics, Inc.
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Initial contribution by Brent Benson, Harris Computer Systems, Inc.,
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based on Fred Fish's (Cygnus Support) implementation of DWARF 1
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support.
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This file is part of GDB.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>. */
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#ifndef GDB_DWARF2_LEB_H
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#define GDB_DWARF2_LEB_H
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/* Read dwarf information from a buffer. */
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static inline unsigned int
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read_1_byte (bfd *abfd, const gdb_byte *buf)
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{
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return bfd_get_8 (abfd, buf);
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}
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static inline int
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read_1_signed_byte (bfd *abfd, const gdb_byte *buf)
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{
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return bfd_get_signed_8 (abfd, buf);
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}
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static inline unsigned int
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read_2_bytes (bfd *abfd, const gdb_byte *buf)
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{
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return bfd_get_16 (abfd, buf);
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}
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static inline int
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read_2_signed_bytes (bfd *abfd, const gdb_byte *buf)
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{
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return bfd_get_signed_16 (abfd, buf);
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}
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/* Read the next three bytes (little-endian order) as an unsigned integer. */
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static inline unsigned int
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read_3_bytes (bfd *abfd, const gdb_byte *buf)
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{
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unsigned int result = 0;
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for (int i = 0; i < 3; ++i)
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{
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unsigned char byte = bfd_get_8 (abfd, buf);
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buf++;
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result |= ((unsigned int) byte << (i * 8));
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}
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return result;
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}
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static inline unsigned int
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read_4_bytes (bfd *abfd, const gdb_byte *buf)
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{
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return bfd_get_32 (abfd, buf);
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}
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static inline int
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read_4_signed_bytes (bfd *abfd, const gdb_byte *buf)
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{
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return bfd_get_signed_32 (abfd, buf);
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}
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static inline ULONGEST
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read_8_bytes (bfd *abfd, const gdb_byte *buf)
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{
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return bfd_get_64 (abfd, buf);
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}
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extern LONGEST read_signed_leb128 (bfd *, const gdb_byte *, unsigned int *);
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extern ULONGEST read_unsigned_leb128 (bfd *, const gdb_byte *, unsigned int *);
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#endif /* GDB_DWARF2_LEB_H */
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