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/*--------------------------------------------------------------------*/
/*--- Module-local header file for m_aspacemgr. ---*/
/*--- priv_aspacemgr.h ---*/
/*--------------------------------------------------------------------*/
/*
This file is part of Valgrind, a dynamic binary instrumentation
framework.
Copyright (C) 2006-2017 OpenWorks LLP
info@open-works.co.uk
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License as
published by the Free Software Foundation; either version 2 of the
License, or (at your option) any later version.
This program 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 for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, see <http://www.gnu.org/licenses/>.
The GNU General Public License is contained in the file COPYING.
*/
#ifndef __PRIV_ASPACEMGR_H
#define __PRIV_ASPACEMGR_H
/* One of the important design goals of the address space manager is
to minimise dependence on other modules. Hence the following
minimal set of imports. */
#include "pub_core_basics.h" // types
#include "pub_core_vkiscnums.h" // system call numbers
#include "pub_core_vki.h" // VKI_PAGE_SIZE, VKI_MREMAP_MAYMOVE,
// VKI_MREMAP_FIXED, vki_stat64
#include "pub_core_debuglog.h" // VG_(debugLog)
#include "pub_core_libcbase.h" // VG_(strlen), VG_(strcmp), VG_(strncpy)
// VG_IS_PAGE_ALIGNED
// VG_PGROUNDDN, VG_PGROUNDUP
#include "pub_core_libcassert.h" // VG_(exit_now)
#include "pub_core_syscall.h" // VG_(do_syscallN)
// VG_(mk_SysRes_Error)
// VG_(mk_SysRes_Success)
#include "pub_core_options.h" // VG_(clo_sanity_level)
#if defined(VGO_freebsd)
#include "pub_core_libcproc.h" // VG_(sysctlbyname)
#endif
#include "pub_core_aspacemgr.h" // self
/* --------------- Implemented in aspacemgr-common.c ---------------*/
/* Simple assert-like, file I/O and syscall facilities, which avoid
dependence on m_libcassert, and hence on the entire module graph.
This is important since most of the system itself depends on
aspacem, so we have to do this to avoid a circular dependency. */
__attribute__ ((noreturn))
extern void ML_(am_exit) ( Int status );
__attribute__ ((noreturn))
extern void ML_(am_barf) ( const HChar* what );
__attribute__ ((noreturn))
extern void ML_(am_barf_toolow) ( const HChar* what );
__attribute__ ((noreturn))
extern void ML_(am_assert_fail) ( const HChar* expr,
const HChar* file,
Int line,
const HChar* fn );
#define aspacem_assert(expr) \
((void) (LIKELY(expr) ? (void)0 : \
(ML_(am_assert_fail)(#expr, \
__FILE__, __LINE__, \
__PRETTY_FUNCTION__))))
/* Dude, what's my process ID ? */
extern Int ML_(am_getpid)( void );
/* A simple, self-contained sprintf implementation. */
extern UInt ML_(am_sprintf) ( HChar* buf, const HChar *format, ... );
/* mmap et al wrappers */
/* wrapper for munmap */
extern SysRes ML_(am_do_munmap_NO_NOTIFY)(Addr start, SizeT length);
/* wrapper for the ghastly 'mremap' syscall */
extern SysRes ML_(am_do_extend_mapping_NO_NOTIFY)(
Addr old_addr,
SizeT old_len,
SizeT new_len
);
/* ditto */
extern SysRes ML_(am_do_relocate_nooverlap_mapping_NO_NOTIFY)(
Addr old_addr, Addr old_len,
Addr new_addr, Addr new_len
);
/* There is also VG_(do_mmap_NO_NOTIFY), but that's not declared
here (obviously). */
extern SysRes ML_(am_open) ( const HChar* pathname, Int flags, Int mode );
extern void ML_(am_close) ( Int fd );
extern Int ML_(am_read) ( Int fd, void* buf, Int count);
extern Int ML_(am_readlink) ( const HChar* path, HChar* buf, UInt bufsiz );
extern Int ML_(am_fcntl) ( Int fd, Int cmd, Addr arg );
/* Get the dev, inode and mode info for a file descriptor, if
possible. Returns True on success. */
extern
Bool ML_(am_get_fd_d_i_m)( Int fd,
/*OUT*/ULong* dev,
/*OUT*/ULong* ino, /*OUT*/UInt* mode );
extern
Bool ML_(am_resolve_filename) ( Int fd, /*OUT*/HChar* buf, Int nbuf );
/* ------ Implemented separately in aspacemgr-linux.c ------ */
/* Do a sanity check (/proc/self/maps sync check) */
extern void ML_(am_do_sanity_check)( void );
/* ------ Implemented in aspacemgr-segnames.c ------ */
void ML_(am_segnames_init)(void);
void ML_(am_show_segnames)(Int logLevel, const HChar *prefix);
/* Put NAME into the string table of segment names. Return index for
future reference. A return value of -1 indicates that the segment name
could not be stored. Basically an out-of-memory situation. */
Int ML_(am_allocate_segname)(const HChar *name);
/* Increment / decrement the reference counter for this segment name. */
void ML_(am_inc_refcount)(Int);
void ML_(am_dec_refcount)(Int);
/* Check whether the segname index is sane. */
Bool ML_(am_sane_segname)(Int fnIdx);
/* Return the segment name for the given index. Maybe return NULL, if the
segment does not have a name. */
const HChar *ML_(am_get_segname)(Int fnIdx);
/* Return the sequence number of the segment name */
Int ML_(am_segname_get_seqnr)(Int fnIdx);
#endif // __PRIV_ASPACEMGR_H
/*--------------------------------------------------------------------*/
/*--- end ---*/
/*--------------------------------------------------------------------*/
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