| |
| /*--------------------------------------------------------------------*/ |
| /*--- 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_SIGSEGV 11 |
| #define VKI_SIGBUS 7 |
| #define VKI_SIGILL 4 |
| #define VKI_SIGFPE 8 |
| #define VKI_SIGKILL 9 |
| #define VKI_SIGSTOP 19 |
| #define VKI_SIGTERM 15 |
| #define VKI_SIGUSR1 10 |
| |
| /* 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 */ |
| }; |
| |
| |
| /* STAT stuff |
| from /usr/src/linux-2.4.9-31/include/asm-i386/stat.h */ |
| struct vki_stat { |
| unsigned short st_dev; |
| unsigned short __pad1; |
| unsigned long st_ino; |
| unsigned short st_mode; |
| unsigned short st_nlink; |
| unsigned short st_uid; |
| unsigned short st_gid; |
| unsigned short st_rdev; |
| unsigned short __pad2; |
| unsigned long st_size; |
| unsigned long st_blksize; |
| unsigned long st_blocks; |
| unsigned long st_atime; |
| unsigned long __unused1; |
| unsigned long st_mtime; |
| unsigned long __unused2; |
| unsigned long st_ctime; |
| unsigned long __unused3; |
| unsigned long __unused4; |
| unsigned long __unused5; |
| }; |
| |
| |
| /* To do with the ELF constructed by the kernel on a process' stack |
| just before it transfers control to the program's interpreter |
| (to use the ELF parlance). |
| Constants from /usr/src/linux-2.4.9-31/include/linux/elf.h |
| Logic from /usr/src/linux-2.4.9-31/fs/binfmt_elf.c |
| and its counterpart in the 2.2.14 kernel sources |
| in Red Hat 6.2. |
| */ |
| #define VKI_AT_CLKTCK 17 /* frequency at which times() increments */ |
| #define VKI_AT_HWCAP 16 /* arch dependent hints at CPU capabilities */ |
| #define VKI_AT_BASE 7 /* base address of interpreter */ |
| #define VKI_AT_PAGESZ 6 /* system page size */ |
| #define VKI_AT_PHNUM 5 /* number of program headers */ |
| #define VKI_AT_PHENT 4 /* size of program header entry */ |
| #define VKI_AT_PHDR 3 /* program headers for program */ |
| |
| |
| |
| #endif /* ndef __VG_KERNELIFACE_H */ |
| |
| /*--------------------------------------------------------------------*/ |
| /*--- end vg_kerneliface.h ---*/ |
| /*--------------------------------------------------------------------*/ |