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and then only on AIX 5.2 and 5.3. git-svn-id: svn://svn.valgrind.org/valgrind/trunk@11842
144 lines
5.8 KiB
C
144 lines
5.8 KiB
C
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/*--------------------------------------------------------------------*/
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/*--- Debug info. pub_core_debuginfo.h ---*/
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/*--------------------------------------------------------------------*/
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/*
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This file is part of Valgrind, a dynamic binary instrumentation
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framework.
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Copyright (C) 2000-2010 Julian Seward
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jseward@acm.org
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License as
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published by the Free Software Foundation; either version 2 of the
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License, or (at your option) any later version.
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This program is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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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, write to the Free Software
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
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02111-1307, USA.
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The GNU General Public License is contained in the file COPYING.
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*/
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#ifndef __PUB_CORE_DEBUGINFO_H
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#define __PUB_CORE_DEBUGINFO_H
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//--------------------------------------------------------------------
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// PURPOSE: This module deals with reading debug info and symbol tables
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// to get file and function names, line numbers, variable types, and
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// to help stack unwinding.
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//--------------------------------------------------------------------
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#include "pub_tool_debuginfo.h"
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/* Initialise the entire module. Must be called first of all. */
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extern void VG_(di_initialise) ( void );
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/* LINUX: Notify the debuginfo system about a new mapping, or the
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disappearance of such, or a permissions change on an existing
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mapping. This is the way new debug information gets loaded. If
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allow_SkFileV is True, it will try load debug info if the mapping
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at 'a' belongs to Valgrind; whereas normally (False) it will not do
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that. This allows us to carefully control when the thing will read
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symbols from the Valgrind executable itself.
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If a call to VG_(di_notify_mmap) causes debug info to be read, then
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the returned ULong is an abstract handle which can later be used to
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refer to the debuginfo read as a result of this specific mapping,
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in later queries to m_debuginfo. In this case the handle value
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will be one or above. If the returned value is zero, no debug info
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was read. */
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#if defined(VGO_linux) || defined(VGO_darwin)
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extern ULong VG_(di_notify_mmap)( Addr a, Bool allow_SkFileV );
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extern void VG_(di_notify_munmap)( Addr a, SizeT len );
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extern void VG_(di_notify_mprotect)( Addr a, SizeT len, UInt prot );
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/* this should really return ULong, as per VG_(di_notify_mmap). */
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extern void VG_(di_notify_pdb_debuginfo)( Int fd, Addr avma,
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SizeT total_size,
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PtrdiffT unknown_purpose__reloc );
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#endif
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extern void VG_(di_discard_ALL_debuginfo)( void );
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/* Like VG_(get_fnname), but it does not do C++ demangling nor Z-demangling
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* nor below-main renaming.
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* It should not be used for any names that will be shown to users.
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* It should only be used in cases where the names of interest will have
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* particular (ie. non-mangled) forms, or the mangled form is acceptable. */
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extern
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Bool VG_(get_fnname_raw) ( Addr a, Char* buf, Int nbuf );
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/* Like VG_(get_fnname), but without C++ demangling. (But it does
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* Z-demangling and below-main renaming.) */
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extern
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Bool VG_(get_fnname_no_cxx_demangle) ( Addr a, Char* buf, Int nbuf );
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/* Use DWARF2/3 CFA information to do one step of stack unwinding.
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D3UnwindRegs holds the current register values, and is
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arch-specific. Note that the x86 and amd64 definitions are shared
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and so the regs are named 'xip' etc rather than 'eip' and 'rip'. */
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#if defined(VGA_amd64) || defined(VGA_x86)
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typedef
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struct { Addr xip; Addr xsp; Addr xbp; }
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D3UnwindRegs;
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#elif defined(VGA_arm)
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typedef
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struct { Addr r15; Addr r14; Addr r13; Addr r12; Addr r11; Addr r7; }
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D3UnwindRegs;
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#elif defined(VGA_ppc32) || defined(VGA_ppc64)
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typedef
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UChar /* should be void, but gcc complains at use points */
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D3UnwindRegs;
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#elif defined(VGA_s390x)
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typedef
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struct { Addr ia; Addr sp; Addr fp; Addr lr;}
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D3UnwindRegs;
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#else
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# error "Unsupported arch"
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#endif
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extern Bool VG_(use_CF_info) ( /*MOD*/D3UnwindRegs* uregs,
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Addr min_accessible,
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Addr max_accessible );
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/* Use MSVC FPO data to do one step of stack unwinding. */
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extern Bool VG_(use_FPO_info) ( /*MOD*/Addr* ipP,
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/*MOD*/Addr* spP,
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/*MOD*/Addr* fpP,
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Addr min_accessible,
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Addr max_accessible );
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/* ppc64-linux only: find the TOC pointer (R2 value) that should be in
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force at the entry point address of the function containing
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guest_code_addr. Returns 0 if not known. */
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extern Addr VG_(get_tocptr) ( Addr guest_code_addr );
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/* Map a function name to its entry point and toc pointer. Is done by
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sequential search of all symbol tables, so is very slow. To
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mitigate the worst performance effects, you may specify a soname
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pattern, and only objects matching that pattern are searched.
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Therefore specify "*" to search all the objects. On TOC-afflicted
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platforms, a symbol is deemed to be found only if it has a nonzero
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TOC pointer. */
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extern
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Bool VG_(lookup_symbol_SLOW)(UChar* sopatt, UChar* name, Addr* pEnt, Addr* pToc);
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#endif // __PUB_CORE_DEBUGINFO_H
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/*--------------------------------------------------------------------*/
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/*--- end ---*/
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/*--------------------------------------------------------------------*/
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