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author | cvs2svn <> | 2013-09-18 01:05:54 +0400 |
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committer | cvs2svn <> | 2013-09-18 01:05:54 +0400 |
commit | ca0a528bcbbe48fe3f2985ee68f43ce4e7668708 (patch) | |
tree | 2286c2e2cb7fab619f279138250e98210b050233 /include/leb128.h | |
parent | 073b57175fab28f52a0f407855ff587d3991faae (diff) |
This commit was manufactured by cvs2svn to create tag 'cgen-cgen-snapshot-20130701
snapshot-20130701'.
Sprout from binutils-2_24-branch 2013-09-17 21:05:50 UTC cvs2svn 'This commit was manufactured by cvs2svn to create branch 'binutils-'
Cherrypick from master 2013-06-22 16:44:14 UTC Richard Sandiford <rdsandiford@googlemail.com> ' * configure.ac (mips*-*-bsd*, mips*-*-ultrix*, mips*-*-osf*)':
ChangeLog
Makefile.def
Makefile.in
configure
configure.ac
src-release
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include/COPYING
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include/ChangeLog
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include/aout/adobe.h
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Diffstat (limited to 'include/leb128.h')
-rw-r--r-- | include/leb128.h | 136 |
1 files changed, 0 insertions, 136 deletions
diff --git a/include/leb128.h b/include/leb128.h deleted file mode 100644 index f584f72e5..000000000 --- a/include/leb128.h +++ /dev/null @@ -1,136 +0,0 @@ -/* Utilities for reading leb128 values. - Copyright (C) 2012 Free Software Foundation, Inc. - -This file is part of the libiberty library. -Libiberty is free software; you can redistribute it and/or -modify it under the terms of the GNU Library General Public -License as published by the Free Software Foundation; either -version 2 of the License, or (at your option) any later version. - -Libiberty 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 -Library General Public License for more details. - -You should have received a copy of the GNU Library General Public -License along with libiberty; see the file COPYING.LIB. If not, write -to the Free Software Foundation, Inc., 51 Franklin Street - Fifth Floor, -Boston, MA 02110-1301, USA. */ - -/* The functions defined here can be speed critical. - Since they are all pretty small we keep things simple and just define - them all as "static inline". - - WARNING: This file is used by GDB which is stuck at C90. :-( - Though it can use stdint.h, inttypes.h. - Therefore if you want to add support for "long long" you need - to wrap it in #ifdef CC_HAS_LONG_LONG. */ - -#ifndef LEB128_H -#define LEB128_H - -/* Get a definition for inline. */ -#include "ansidecl.h" - -/* Get a definition for NULL, size_t. */ -#include <stddef.h> - -#ifdef HAVE_STDINT_H -#include <stdint.h> -#endif -#ifdef HAVE_INTTYPES_H -#include <inttypes.h> -#endif - -/* Decode the unsigned LEB128 constant at BUF into the variable pointed to - by R, and return the number of bytes read. - If we read off the end of the buffer, zero is returned, - and nothing is stored in R. - - Note: The result is an int instead of a pointer to the next byte to be - read to avoid const-vs-non-const problems. */ - -static inline size_t -read_uleb128_to_uint64 (const unsigned char *buf, const unsigned char *buf_end, - uint64_t *r) -{ - const unsigned char *p = buf; - unsigned int shift = 0; - uint64_t result = 0; - unsigned char byte; - - while (1) - { - if (p >= buf_end) - return 0; - - byte = *p++; - result |= ((uint64_t) (byte & 0x7f)) << shift; - if ((byte & 0x80) == 0) - break; - shift += 7; - } - - *r = result; - return p - buf; -} - -/* Decode the signed LEB128 constant at BUF into the variable pointed to - by R, and return the number of bytes read. - If we read off the end of the buffer, zero is returned, - and nothing is stored in R. - - Note: The result is an int instead of a pointer to the next byte to be - read to avoid const-vs-non-const problems. */ - -static inline size_t -read_sleb128_to_int64 (const unsigned char *buf, const unsigned char *buf_end, - int64_t *r) -{ - const unsigned char *p = buf; - unsigned int shift = 0; - int64_t result = 0; - unsigned char byte; - - while (1) - { - if (p >= buf_end) - return 0; - - byte = *p++; - result |= ((uint64_t) (byte & 0x7f)) << shift; - shift += 7; - if ((byte & 0x80) == 0) - break; - } - if (shift < (sizeof (*r) * 8) && (byte & 0x40) != 0) - result |= -(((uint64_t) 1) << shift); - - *r = result; - return p - buf; -} - -/* Return the number of bytes to read to skip past an LEB128 number in BUF. - If the end isn't found before reaching BUF_END, return zero. - - Note: The result is an int instead of a pointer to the next byte to be - read to avoid const-vs-non-const problems. */ - -static inline size_t -skip_leb128 (const unsigned char *buf, const unsigned char *buf_end) -{ - const unsigned char *p = buf; - unsigned char byte; - - while (1) - { - if (p == buf_end) - return 0; - - byte = *p++; - if ((byte & 0x80) == 0) - return p - buf; - } -} - -#endif /* LEB128_H */ |