mirror of
https://github.com/Zenithsiz/ftmemsim-valgrind.git
synced 2026-02-04 02:18:37 +00:00
d01259a1d0
and needs further cleaning up, but it's a start. git-svn-id: svn://svn.valgrind.org/valgrind/trunk@3821
499 lines
20 KiB
C
499 lines
20 KiB
C
/*-*- c -*- ----------------------------------------------------------*/
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/*--- Header for lots of tool stuff. tool.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) 2000-2005 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 __TOOL_H
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#define __TOOL_H
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#include <stdarg.h> /* ANSI varargs stuff */
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#include "basic_types.h"
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#include "tool_asm.h" /* asm stuff */
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#if defined(VGO_linux)
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# include "vki-linux.h"
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#else
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# error Unknown OS
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#endif
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/*====================================================================*/
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/*=== Build options and table sizes. ===*/
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/*====================================================================*/
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/* The maximum number of pthreads that we support. This is
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deliberately not very high since our implementation of some of the
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scheduler algorithms is surely O(N) in the number of threads, since
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that's simple, at least. And (in practice) we hope that most
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programs do not need many threads. */
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#define VG_N_THREADS 100
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/*====================================================================*/
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/*=== Useful macros ===*/
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/*====================================================================*/
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/* No, really. I _am_ that strange. */
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#define OINK(nnn) VG_(message)(Vg_DebugMsg, "OINK %d",nnn)
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/* Path to all our library/aux files */
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extern const Char *VG_(libdir);
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/* Use this for normal null-termination-style string comparison */
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#define VG_STREQ(s1,s2) (s1 != NULL && s2 != NULL \
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&& VG_(strcmp)((s1),(s2))==0)
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/* Client args */
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extern Int VG_(client_argc);
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extern Char** VG_(client_argv);
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/* Client environment. Can be inspected with VG_(getenv)() */
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extern Char** VG_(client_envp);
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/*====================================================================*/
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/*=== Printing messages for the user ===*/
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/*====================================================================*/
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/* Print a message prefixed by "??<pid>?? "; '?' depends on the VgMsgKind.
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Should be used for all user output. */
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typedef
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enum { Vg_UserMsg, /* '?' == '=' */
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Vg_DebugMsg, /* '?' == '-' */
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Vg_DebugExtraMsg, /* '?' == '+' */
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Vg_ClientMsg /* '?' == '*' */
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}
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VgMsgKind;
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/* Send a single-part message. Appends a newline. */
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extern UInt VG_(message) ( VgMsgKind kind, const HChar* format, ... );
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extern UInt VG_(vmessage) ( VgMsgKind kind, const HChar* format, va_list vargs );
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/*====================================================================*/
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/*=== Profiling ===*/
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/*====================================================================*/
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/* Nb: VG_(register_profile_event)() relies on VgpUnc being the first one */
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#define VGP_CORE_LIST \
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/* These ones depend on the core */ \
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VGP_PAIR(VgpUnc, "unclassified"), \
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VGP_PAIR(VgpStartup, "startup"), \
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VGP_PAIR(VgpRun, "running"), \
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VGP_PAIR(VgpSched, "scheduler"), \
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VGP_PAIR(VgpMalloc, "low-lev malloc/free"), \
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VGP_PAIR(VgpCliMalloc, "client malloc/free"), \
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VGP_PAIR(VgpTranslate, "translate-main"), \
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VGP_PAIR(VgpToUCode, "to-ucode"), \
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VGP_PAIR(VgpFromUcode, "from-ucode"), \
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VGP_PAIR(VgpImprove, "improve"), \
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VGP_PAIR(VgpESPUpdate, "ESP-update"), \
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VGP_PAIR(VgpRegAlloc, "reg-alloc"), \
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VGP_PAIR(VgpLiveness, "liveness-analysis"), \
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VGP_PAIR(VgpDoLRU, "do-lru"), \
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VGP_PAIR(VgpSlowFindT, "slow-search-transtab"), \
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VGP_PAIR(VgpExeContext, "exe-context"), \
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VGP_PAIR(VgpReadSyms, "read-syms"), \
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VGP_PAIR(VgpSearchSyms, "search-syms"), \
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VGP_PAIR(VgpAddToT, "add-to-transtab"), \
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VGP_PAIR(VgpCoreSysWrap, "core-syscall-wrapper"), \
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VGP_PAIR(VgpDemangle, "demangle"), \
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VGP_PAIR(VgpCoreCheapSanity, "core-cheap-sanity"), \
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VGP_PAIR(VgpCoreExpensiveSanity, "core-expensive-sanity"), \
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/* These ones depend on the tool */ \
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VGP_PAIR(VgpPreCloInit, "pre-clo-init"), \
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VGP_PAIR(VgpPostCloInit, "post-clo-init"), \
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VGP_PAIR(VgpInstrument, "instrument"), \
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VGP_PAIR(VgpToolSysWrap, "tool-syscall-wrapper"), \
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VGP_PAIR(VgpToolCheapSanity, "tool-cheap-sanity"), \
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VGP_PAIR(VgpToolExpensiveSanity, "tool-expensive-sanity"), \
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VGP_PAIR(VgpFini, "fini")
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#define VGP_PAIR(n,name) n
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typedef enum { VGP_CORE_LIST } VgpCoreCC;
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#undef VGP_PAIR
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/* When registering tool profiling events, ensure that the 'n' value is in
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* the range (VgpFini+1..) */
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extern void VG_(register_profile_event) ( Int n, Char* name );
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extern void VG_(pushcc) ( UInt cc );
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extern void VG_(popcc) ( UInt cc );
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/* Define them only if they haven't already been defined by vg_profile.c */
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#ifndef VGP_PUSHCC
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# define VGP_PUSHCC(x)
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#endif
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#ifndef VGP_POPCC
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# define VGP_POPCC(x)
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#endif
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/*====================================================================*/
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/*=== Useful stuff to call from generated code ===*/
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/*====================================================================*/
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/* ------------------------------------------------------------------ */
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/* General stuff */
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/* Check if an address/whatever is aligned */
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#define VG_IS_4_ALIGNED(aaa_p) (0 == (((Addr)(aaa_p)) & ((Addr)0x3)))
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#define VG_IS_8_ALIGNED(aaa_p) (0 == (((Addr)(aaa_p)) & ((Addr)0x7)))
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#define VG_IS_16_ALIGNED(aaa_p) (0 == (((Addr)(aaa_p)) & ((Addr)0xf)))
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#define VG_IS_WORD_ALIGNED(aaa_p) (0 == (((Addr)(aaa_p)) & ((Addr)(sizeof(Addr)-1))))
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#define VG_IS_PAGE_ALIGNED(aaa_p) (0 == (((Addr)(aaa_p)) & ((Addr)(VKI_PAGE_SIZE-1))))
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/* ------------------------------------------------------------------ */
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/* Thread-related stuff */
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/* Special magic value for an invalid ThreadId. It corresponds to
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LinuxThreads using zero as the initial value for
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pthread_mutex_t.__m_owner and pthread_cond_t.__c_waiting. */
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#define VG_INVALID_THREADID ((ThreadId)(0))
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/* Get the TID of the thread which currently has the CPU. */
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extern ThreadId VG_(get_running_tid) ( void );
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/* Searches through all thread's stacks to see if any match. Returns
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VG_INVALID_THREADID if none match. */
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extern ThreadId VG_(first_matching_thread_stack)
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( Bool (*p) ( Addr stack_min, Addr stack_max, void* d ),
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void* d );
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/* Get parts of the client's state. */
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extern Addr VG_(get_SP) ( ThreadId tid );
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extern Addr VG_(get_IP) ( ThreadId tid );
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/*====================================================================*/
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/*=== Valgrind's version of libc ===*/
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/*====================================================================*/
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/* Valgrind doesn't use libc at all, for good reasons (trust us). So here
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are its own versions of C library functions, but with VG_ prefixes. Note
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that the types of some are slightly different to the real ones. Some
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additional useful functions are provided too; descriptions of how they
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work are given below. */
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#if !defined(NULL)
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# define NULL ((void*)0)
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#endif
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/* ------------------------------------------------------------------ */
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/* stdio.h
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*
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* Note that they all output to the file descriptor given by the
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* --log-fd/--log-file/--log-socket argument, which defaults to 2 (stderr).
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* Hence no need for VG_(fprintf)().
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*/
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extern UInt VG_(printf) ( const HChar *format, ... );
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extern UInt VG_(vprintf) ( const HChar *format, va_list vargs );
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/* too noisy ... __attribute__ ((format (printf, 1, 2))) ; */
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extern UInt VG_(sprintf) ( Char* buf, const HChar* format, ... );
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extern UInt VG_(vsprintf)( Char* buf, const HChar* format, va_list vargs );
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extern Int VG_(rename) ( Char* old_name, Char* new_name );
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/* ------------------------------------------------------------------ */
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/* stdlib.h */
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/* terminate everything */
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extern void VG_(exit)( Int status )
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__attribute__ ((__noreturn__));
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/* Prints a panic message (a constant string), appends newline and bug
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reporting info, aborts. */
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__attribute__ ((__noreturn__))
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extern void VG_(tool_panic) ( Char* str );
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/* Looks up VG_(client_envp) */
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extern Char* VG_(getenv) ( Char* name );
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/* Get client resource limit*/
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extern Int VG_(getrlimit) ( Int resource, struct vki_rlimit *rlim );
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/* Set client resource limit*/
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extern Int VG_(setrlimit) ( Int resource, const struct vki_rlimit *rlim );
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/* Crude stand-in for the glibc system() call. */
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extern Int VG_(system) ( Char* cmd );
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extern Long VG_(atoll) ( Char* str );
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/* Like atoll(), but converts a number of base 16 */
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extern Long VG_(atoll16) ( Char* str );
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/* Like atoll(), but converts a number of base 2..36 */
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extern Long VG_(atoll36) ( UInt base, Char* str );
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/* Like qsort(), but does shell-sort. The size==1/2/4 cases are specialised. */
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extern void VG_(ssort)( void* base, SizeT nmemb, SizeT size,
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Int (*compar)(void*, void*) );
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/* ------------------------------------------------------------------ */
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/* ctype.h */
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extern Bool VG_(isspace) ( Char c );
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extern Bool VG_(isdigit) ( Char c );
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extern Char VG_(toupper) ( Char c );
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/* ------------------------------------------------------------------ */
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/* string.h */
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extern Int VG_(strlen) ( const Char* str );
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extern Char* VG_(strcat) ( Char* dest, const Char* src );
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extern Char* VG_(strncat) ( Char* dest, const Char* src, Int n );
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extern Char* VG_(strpbrk) ( const Char* s, const Char* accpt );
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extern Char* VG_(strcpy) ( Char* dest, const Char* src );
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extern Char* VG_(strncpy) ( Char* dest, const Char* src, Int ndest );
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extern Int VG_(strcmp) ( const Char* s1, const Char* s2 );
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extern Int VG_(strncmp) ( const Char* s1, const Char* s2, Int nmax );
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extern Char* VG_(strstr) ( const Char* haystack, Char* needle );
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extern Char* VG_(strchr) ( const Char* s, Char c );
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extern Char* VG_(strrchr) ( const Char* s, Char c );
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extern Char* VG_(strdup) ( const Char* s);
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extern void* VG_(memcpy) ( void *d, const void *s, Int sz );
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extern void* VG_(memset) ( void *s, Int c, Int sz );
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extern Int VG_(memcmp) ( const void* s1, const void* s2, Int n );
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/* Like strcmp() and strncmp(), but stop comparing at any whitespace. */
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extern Int VG_(strcmp_ws) ( const Char* s1, const Char* s2 );
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extern Int VG_(strncmp_ws) ( const Char* s1, const Char* s2, Int nmax );
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/* Like strncpy(), but if 'src' is longer than 'ndest' inserts a '\0' as the
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last character. */
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extern void VG_(strncpy_safely) ( Char* dest, const Char* src, Int ndest );
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/* Mini-regexp function. Searches for 'pat' in 'str'. Supports
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* meta-symbols '*' and '?'. '\' escapes meta-symbols. */
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extern Bool VG_(string_match) ( const Char* pat, const Char* str );
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/* ------------------------------------------------------------------ */
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/* math.h */
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/* Returns the base-2 logarithm of x. */
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extern Int VG_(log2) ( Int x );
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/* ------------------------------------------------------------------ */
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/* unistd.h, fcntl.h, sys/stat.h */
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extern Int VG_(getdents)( UInt fd, struct vki_dirent *dirp, UInt count );
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extern Int VG_(readlink)( Char* path, Char* buf, UInt bufsize );
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extern Int VG_(getpid) ( void );
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extern Int VG_(getppid) ( void );
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extern Int VG_(getpgrp) ( void );
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extern Int VG_(gettid) ( void );
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extern Int VG_(setpgid) ( Int pid, Int pgrp );
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extern Int VG_(open) ( const Char* pathname, Int flags, Int mode );
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extern Int VG_(read) ( Int fd, void* buf, Int count);
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extern Int VG_(write) ( Int fd, const void* buf, Int count);
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extern OffT VG_(lseek) ( Int fd, OffT offset, Int whence);
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extern void VG_(close) ( Int fd );
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extern Int VG_(pipe) ( Int fd[2] );
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/* Nb: VG_(rename)() declared in stdio.h section above */
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extern Int VG_(unlink) ( Char* file_name );
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extern Int VG_(stat) ( Char* file_name, struct vki_stat* buf );
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extern Int VG_(fstat) ( Int fd, struct vki_stat* buf );
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extern Int VG_(dup2) ( Int oldfd, Int newfd );
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extern Char* VG_(getcwd) ( Char* buf, SizeT size );
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/* Easier to use than VG_(getcwd)() -- does the buffer fiddling itself.
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String put into 'cwd' is VG_(malloc)'d, and should be VG_(free)'d.
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Returns False if it fails. Will fail if the pathname is > 65535 bytes. */
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extern Bool VG_(getcwd_alloc) ( Char** cwd );
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/* ------------------------------------------------------------------ */
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/* assert.h */
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/* Asserts permanently enabled -- no turning off with NDEBUG. Hurrah! */
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/* This odd definition lets us stringify VG_(x) function names to
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"vgPlain_x". We need to do two macroexpansions to get the VG_ macro
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expanded before stringifying. */
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#define VG_STRINGIFY_WRK(x) #x
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#define VG_STRINGIFY(x) VG_STRINGIFY_WRK(x)
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#define tl_assert(expr) \
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((void) ((expr) ? 0 : \
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(VG_(assert_fail) (/*isCore?*/False, VG_STRINGIFY(expr), \
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__FILE__, __LINE__, __PRETTY_FUNCTION__, \
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""), \
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0)))
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#define tl_assert2(expr, format, args...) \
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((void) ((expr) ? 0 : \
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(VG_(assert_fail) (/*isCore?*/False, VG_STRINGIFY(expr), \
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__FILE__, __LINE__, __PRETTY_FUNCTION__, \
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format, ##args), \
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0)))
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__attribute__ ((__noreturn__))
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extern void VG_(assert_fail) ( Bool isCore, const Char* expr, const Char* file,
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Int line, const Char* fn,
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const HChar* format, ... );
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/* ------------------------------------------------------------------ */
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/* Get memory by anonymous mmap. */
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extern void* VG_(get_memory_from_mmap) ( SizeT nBytes, Char* who );
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extern Bool VG_(is_client_addr) (Addr a);
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extern Bool VG_(is_shadow_addr) (Addr a);
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extern Addr VG_(get_shadow_size)(void);
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extern void *VG_(shadow_alloc)(UInt size);
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extern Bool VG_(is_addressable)(Addr p, SizeT sz, UInt prot);
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/* Register an interest in apparently internal faults; used code which
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wanders around dangerous memory (ie, leakcheck). The catcher is
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not expected to return. */
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extern void VG_(set_fault_catcher)(void (*catcher)(Int sig, Addr addr));
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/* initialize shadow pages in the range [p, p+sz) This calls
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init_shadow_page for each one. It should be a lot more efficient
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for bulk-initializing shadow pages than faulting on each one.
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*/
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extern void VG_(init_shadow_range)(Addr p, UInt sz, Bool call_init);
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/* Calls into the core used by leak-checking */
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/* Calls "add_rootrange" with each range of memory which looks like a
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plausible source of root pointers. */
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extern void VG_(find_root_memory)(void (*add_rootrange)(Addr addr, SizeT sz));
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/* Calls "mark_addr" with register values (which may or may not be pointers) */
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extern void VG_(mark_from_registers)(void (*mark_addr)(Addr addr));
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/* ------------------------------------------------------------------ */
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/* signal.h.
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Note that these use the vk_ (kernel) structure
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definitions, which are different in places from those that glibc
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defines. Since we're operating right at the kernel interface, glibc's view
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of the world is entirely irrelevant. */
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/* --- Signal set ops --- */
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extern Int VG_(sigfillset) ( vki_sigset_t* set );
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extern Int VG_(sigemptyset) ( vki_sigset_t* set );
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extern Bool VG_(isfullsigset) ( const vki_sigset_t* set );
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extern Bool VG_(isemptysigset) ( const vki_sigset_t* set );
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extern Bool VG_(iseqsigset) ( const vki_sigset_t* set1,
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const vki_sigset_t* set2 );
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extern Int VG_(sigaddset) ( vki_sigset_t* set, Int signum );
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extern Int VG_(sigdelset) ( vki_sigset_t* set, Int signum );
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extern Int VG_(sigismember) ( const vki_sigset_t* set, Int signum );
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extern void VG_(sigaddset_from_set) ( vki_sigset_t* dst, vki_sigset_t* src );
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extern void VG_(sigdelset_from_set) ( vki_sigset_t* dst, vki_sigset_t* src );
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/* --- Mess with the kernel's sig state --- */
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extern Int VG_(sigprocmask) ( Int how, const vki_sigset_t* set,
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vki_sigset_t* oldset );
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extern Int VG_(sigaction) ( Int signum,
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const struct vki_sigaction* act,
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struct vki_sigaction* oldact );
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extern Int VG_(sigtimedwait)( const vki_sigset_t *, vki_siginfo_t *,
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const struct vki_timespec * );
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extern Int VG_(signal) ( Int signum, void (*sighandler)(Int) );
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extern Int VG_(sigaltstack) ( const vki_stack_t* ss, vki_stack_t* oss );
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extern Int VG_(kill) ( Int pid, Int signo );
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extern Int VG_(tkill) ( ThreadId tid, Int signo );
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extern Int VG_(sigpending) ( vki_sigset_t* set );
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extern Int VG_(waitpid) ( Int pid, Int *status, Int options );
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|
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/* ------------------------------------------------------------------ */
|
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/* socket.h. */
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|
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extern Int VG_(getsockname) ( Int sd, struct vki_sockaddr *name, Int *namelen);
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extern Int VG_(getpeername) ( Int sd, struct vki_sockaddr *name, Int *namelen);
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extern Int VG_(getsockopt) ( Int sd, Int level, Int optname, void *optval,
|
|
Int *optlen);
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|
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/* ------------------------------------------------------------------ */
|
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/* other, randomly useful functions */
|
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extern UInt VG_(read_millisecond_timer) ( void );
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|
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extern Bool VG_(has_cpuid) ( void );
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|
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extern void VG_(cpuid) ( UInt eax,
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|
UInt *eax_ret, UInt *ebx_ret,
|
|
UInt *ecx_ret, UInt *edx_ret );
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|
|
|
/*====================================================================*/
|
|
/*=== Functions for shadow registers ===*/
|
|
/*====================================================================*/
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|
|
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// For get/set, 'area' is where the asked-for shadow state will be copied
|
|
// into/from.
|
|
extern void VG_(get_shadow_regs_area) ( ThreadId tid, OffT guest_state_offset,
|
|
SizeT size, UChar* area );
|
|
extern void VG_(set_shadow_regs_area) ( ThreadId tid, OffT guest_state_offset,
|
|
SizeT size, const UChar* area );
|
|
|
|
/*====================================================================*/
|
|
/*=== Arch-specific stuff ===*/
|
|
/*====================================================================*/
|
|
|
|
/* VGA_STACK_REDZONE_SZB: how many bytes below the stack pointer are validly
|
|
* addressible? */
|
|
#if defined(VGA_x86)
|
|
# define VGA_REGPARM(n) __attribute__((regparm(n)))
|
|
# define VGA_MIN_INSTR_SZB 1
|
|
# define VGA_MAX_INSTR_SZB 16
|
|
# define VGA_STACK_REDZONE_SZB 0
|
|
#elif defined(VGA_amd64)
|
|
# define VGA_REGPARM(n) /* */
|
|
# define VGA_MIN_INSTR_SZB 1
|
|
# define VGA_MAX_INSTR_SZB 16
|
|
# define VGA_STACK_REDZONE_SZB 128
|
|
#elif defined(VGA_arm)
|
|
# define VGA_REGPARM(n) /* */
|
|
# define VGA_MIN_INSTR_SZB 4
|
|
# define VGA_MAX_INSTR_SZB 4
|
|
# define VGA_STACK_REDZONE_SZB 0
|
|
#else
|
|
# error Unknown platform
|
|
#endif
|
|
|
|
#endif /* __TOOL_H */
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