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ftmemsim-valgrind/vg_kerneliface.h
Julian Seward 93b2c2ed95 Get rid of the muraroa.demon.co.uk references since that account is 
soon to disappear.


git-svn-id: svn://svn.valgrind.org/valgrind/trunk@83
2002-04-16 02:51:05 +00:00

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/*--------------------------------------------------------------------*/
/*--- A header file defining structures and constants which are ---*/
/*--- important at the kernel boundary for this platform. ---*/
/*--- vg_kerneliface.h ---*/
/*--------------------------------------------------------------------*/
/*
This file is part of Valgrind, an x86 protected-mode emulator
designed for debugging and profiling binaries on x86-Unixes.
Copyright (C) 2000-2002 Julian Seward
jseward@acm.org
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, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
02111-1307, USA.
The GNU General Public License is contained in the file LICENSE.
*/
#ifndef __VG_KERNELIFACE_H
#define __VG_KERNELIFACE_H
/* This file is ONLY to be included into vg_include.h. Do not include
it directly into valgrind source .c files. This file defines types
and constants for the kernel interface, and to make that clear
everything is prefixed VKI. */
/*--- All the following stuff is correct for Linux kernels 2.2.X and
2.4.X.
---*/
/* Should really get this from an include file somewhere. */
#define VKI_BYTES_PER_PAGE_BITS 12
#define VKI_BYTES_PER_PAGE (1 << VKI_BYTES_PER_PAGE_BITS)
#define VKI_BYTES_PER_WORD 4
#define VKI_WORDS_PER_PAGE (VKI_BYTES_PER_PAGE / VKI_BYTES_PER_WORD)
/* For system call numbers __NR_... */
#include <asm/unistd.h>
/* An implementation of signal sets. These are the same as the sigset
implementations in the relevant Linux kernels. Note carefully that
this has nothing to do with glibc's signal sets. We work entirely
at the kernel boundary, so the libc stuff is invisible and
irrelevant. */
/* The following is copied from
/usr/src/linux-2.4.9-13/include/asm-i386/signal.h */
#define VKI_KNSIG 64 /* true for linux 2.2.X and 2.4.X */
#define VKI_KNSIG_BPW 32 /* since we're using UInts */
#define VKI_KNSIG_WORDS (VKI_KNSIG / VKI_KNSIG_BPW)
typedef
struct {
UInt ws[VKI_KNSIG_WORDS];
}
vki_ksigset_t;
typedef
struct {
void* ksa_handler;
unsigned long ksa_flags;
void (*ksa_restorer)(void);
vki_ksigset_t ksa_mask;
}
vki_ksigaction;
typedef
struct {
void* ss_sp;
Int ss_flags;
UInt ss_size;
}
vki_kstack_t;
#define VKI_SIG_BLOCK 0 /* for blocking signals */
#define VKI_SIG_UNBLOCK 1 /* for unblocking signals */
#define VKI_SIG_SETMASK 2 /* for setting the signal mask */
#define VKI_SIG_DFL ((void*)0) /* default signal handling */
#define VKI_SIG_IGN ((void*)1) /* ignore signal */
#define VKI_SIG_ERR ((void*)-1) /* error return from signal */
#define VKI_SA_ONSTACK 0x08000000
#define VKI_SA_RESTART 0x10000000
#if 0
#define VKI_SA_NOCLDSTOP 0x00000001
#define VKI_SA_NOCLDWAIT 0x00000002 /* not supported yet */
#define VKI_SA_SIGINFO 0x00000004
#define VKI_SA_NODEFER 0x40000000
#define VKI_SA_RESETHAND 0x80000000
#define VKI_SA_NOMASK SA_NODEFER
#define VKI_SA_ONESHOT SA_RESETHAND
#define VKI_SA_INTERRUPT 0x20000000 /* dummy -- ignored */
#define VKI_SA_RESTORER 0x04000000
#endif
#define VKI_SIGABRT 6
#define VKI_SIGSEGV 11
#define VKI_SIGBUS 7
#define VKI_SIGILL 4
#define VKI_SIGFPE 8
#define VKI_SIGKILL 9
#define VKI_SIGABRT 6
#define VKI_SIGSTOP 19
#define VKI_SIGTERM 15
/* The following are copied from /usr/include/bits/mman.h, which in
turn claims to have got them from the kernel headers. */
#define VKI_PROT_READ 0x1 /* Page can be read. */
#define VKI_PROT_WRITE 0x2 /* Page can be written. */
#define VKI_PROT_EXEC 0x4 /* Page can be executed. */
#define VKI_MAP_ANONYMOUS 0x20 /* Don't use a file. */
#define VKI_MAP_PRIVATE 0x02 /* Changes are private. */
/* Copied from /usr/src/linux-2.4.9-13/include/asm/errno.h */
#define VKI_EINTR 4 /* Interrupted system call */
#define VKI_EINVAL 22 /* Invalid argument */
#define VKI_ENOMEM 12 /* Out of memory */
#define VKI_EWOULDBLOCK VKI_EAGAIN /* Operation would block */
#define VKI_EAGAIN 11 /* Try again */
/* Gawd ... hack ... */
typedef struct vki__user_cap_header_struct {
UInt version;
int pid;
} vki_cap_user_header_t;
typedef struct vki__user_cap_data_struct {
UInt effective;
UInt permitted;
UInt inheritable;
} vki_cap_user_data_t;
/* "Byrial Jensen" <byrial@image.dk> says:
[various] ioctls take a pointer to a "struct
termios" but this is another and shorter "struct
termios" than the one defined in <termios.h> and used
by tcgetattr(3) and tcsetattr(3) and other library
functions. GNU libc translate between its library
termios and the kernel termios.
*/
#define VKI_SIZEOF_STRUCT_TERMIOS 36
/* Adam Gundy <arg@cyberscience.com>, 20 Mar 2002, says: */
#define VKI_SIZEOF_STRUCT_TERMIO 17
/* File descriptor sets, for doing select(). Copied from
/usr/src/linux-2.4.9-31/include/linux/posix_types.h
*/
/*
* This allows for 1024 file descriptors: if NR_OPEN is ever grown
* beyond that you'll have to change this too. But 1024 fd's seem to be
* enough even for such "real" unices like OSF/1, so hopefully this is
* one limit that doesn't have to be changed [again].
*
* Note that POSIX wants the FD_CLEAR(fd,fdsetp) defines to be in
* <sys/time.h> (and thus <linux/time.h>) - but this is a more logical
* place for them. Solved by having dummy defines in <sys/time.h>.
*/
/*
* Those macros may have been defined in <gnu/types.h>. But we always
* use the ones here.
*/
#undef VKI_NFDBITS
#define VKI_NFDBITS (8 * sizeof(unsigned long))
#undef VKI_FD_SETSIZE
#define VKI_FD_SETSIZE 1024
#undef VKI_FDSET_LONGS
#define VKI_FDSET_LONGS (VKI_FD_SETSIZE/VKI_NFDBITS)
#undef VKI_FDELT
#define VKI_FDELT(d) ((d) / VKI_NFDBITS)
#undef VKI_FDMASK
#define VKI_FDMASK(d) (1UL << ((d) % VKI_NFDBITS))
typedef struct {
unsigned long vki_fds_bits [VKI_FDSET_LONGS];
} vki_fd_set;
/* Gawd ...
Copied from /usr/src/linux-2.4.9-31/./include/asm-i386/posix_types.h
*/
#undef VKI_FD_SET
#define VKI_FD_SET(fd,fdsetp) \
__asm__ __volatile__("btsl %1,%0": \
"=m" (*(vki_fd_set *) (fdsetp)):"r" ((int) (fd)))
#undef VKI_FD_CLR
#define VKI_FD_CLR(fd,fdsetp) \
__asm__ __volatile__("btrl %1,%0": \
"=m" (*(vki_fd_set *) (fdsetp)):"r" ((int) (fd)))
#undef VKI_FD_ISSET
#define VKI_FD_ISSET(fd,fdsetp) (__extension__ ({ \
unsigned char __result; \
__asm__ __volatile__("btl %1,%2 ; setb %0" \
:"=q" (__result) :"r" ((int) (fd)), \
"m" (*(vki_fd_set *) (fdsetp))); \
__result; }))
#undef VKI_FD_ZERO
#define VKI_FD_ZERO(fdsetp) \
do { \
int __d0, __d1; \
__asm__ __volatile__("cld ; rep ; stosl" \
:"=m" (*(vki_fd_set *) (fdsetp)), \
"=&c" (__d0), "=&D" (__d1) \
:"a" (0), "1" (VKI_FDSET_LONGS), \
"2" ((vki_fd_set *) (fdsetp)) : "memory"); \
} while (0)
/*
./include/asm-i386/posix_types.h:typedef long __kernel_suseconds_t;
./include/linux/types.h:typedef __kernel_suseconds_t suseconds_t;
./include/asm-i386/posix_types.h:typedef long __kernel_time_t;
./include/linux/types.h:typedef __kernel_time_t time_t;
*/
struct vki_timeval {
/* time_t */ long tv_sec; /* seconds */
/* suseconds_t */ long tv_usec; /* microseconds */
};
/* For fcntl on fds ..
from ./include/asm-i386/fcntl.h */
#define VKI_F_GETFL 3 /* get file->f_flags */
#define VKI_F_SETFL 4 /* set file->f_flags */
#define VKI_O_NONBLOCK 04000
/* For nanosleep ...
from ./include/linux/time.h */
struct vki_timespec {
/* time_t */ long tv_sec; /* seconds */
long tv_nsec; /* nanoseconds */
};
#endif /* ndef __VG_KERNELIFACE_H */
/*--------------------------------------------------------------------*/
/*--- end vg_kerneliface.h ---*/
/*--------------------------------------------------------------------*/
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