Mercurial > hg > truffle
view agent/src/os/linux/symtab.h @ 219:ab65a4c9b2e8
6708714: Optimize long LShift on 32-bits x86
Summary: For small (1-3 bits) left long shifts in 32-bits VM use sets of add+addc instructions instead of shld+shl on new AMD cpus.
Reviewed-by: never
Contributed-by: shrinivas.joshi@amd.com
author | kvn |
---|---|
date | Mon, 23 Jun 2008 14:11:12 -0700 |
parents | a61af66fc99e |
children | 7de45b5044c3 |
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/* * Copyright 2003 Sun Microsystems, Inc. All Rights Reserved. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * * This code is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 only, as * published by the Free Software Foundation. * * This code 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 General Public License * version 2 for more details (a copy is included in the LICENSE file that * accompanied this code). * * You should have received a copy of the GNU General Public License version * 2 along with this work; if not, write to the Free Software Foundation, * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. * * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, * CA 95054 USA or visit www.sun.com if you need additional information or * have any questions. * */ #ifndef _SYMTAB_H_ #define _SYMTAB_H_ #include <stdint.h> // interface to manage ELF symbol tables struct symtab; // build symbol table for a given ELF file descriptor struct symtab* build_symtab(int fd); // destroy the symbol table void destroy_symtab(struct symtab* symtab); // search for symbol in the given symbol table. Adds offset // to the base uintptr_t supplied. Returns NULL if not found. uintptr_t search_symbol(struct symtab* symtab, uintptr_t base, const char *sym_name, int *sym_size); // look for nearest symbol for a given offset (not address - base // subtraction done by caller const char* nearest_symbol(struct symtab* symtab, uintptr_t offset, uintptr_t* poffset); #endif /*_SYMTAB_H_*/