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linux-record.c
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linux-record.c
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/* Process record and replay target code for GNU/Linux.
Copyright (C) 2008-2024 Free Software Foundation, Inc.
This file is part of GDB.
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 3 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/>. */
#include "defs.h"
#include "target.h"
#include "gdbtypes.h"
#include "regcache.h"
#include "record.h"
#include "record-full.h"
#include "linux-record.h"
#include "gdbarch.h"
/* These macros are the values of the first argument of system call
"sys_ptrace". The values of these macros were obtained from Linux
Kernel source. */
#define RECORD_PTRACE_PEEKTEXT 1
#define RECORD_PTRACE_PEEKDATA 2
#define RECORD_PTRACE_PEEKUSR 3
/* These macros are the values of the first argument of system call
"sys_socketcall". The values of these macros were obtained from
Linux Kernel source. */
#define RECORD_SYS_SOCKET 1
#define RECORD_SYS_BIND 2
#define RECORD_SYS_CONNECT 3
#define RECORD_SYS_LISTEN 4
#define RECORD_SYS_ACCEPT 5
#define RECORD_SYS_GETSOCKNAME 6
#define RECORD_SYS_GETPEERNAME 7
#define RECORD_SYS_SOCKETPAIR 8
#define RECORD_SYS_SEND 9
#define RECORD_SYS_RECV 10
#define RECORD_SYS_SENDTO 11
#define RECORD_SYS_RECVFROM 12
#define RECORD_SYS_SHUTDOWN 13
#define RECORD_SYS_SETSOCKOPT 14
#define RECORD_SYS_GETSOCKOPT 15
#define RECORD_SYS_SENDMSG 16
#define RECORD_SYS_RECVMSG 17
/* These macros are the values of the first argument of system call
"sys_ipc". The values of these macros were obtained from Linux
Kernel source. */
#define RECORD_SEMOP 1
#define RECORD_SEMGET 2
#define RECORD_SEMCTL 3
#define RECORD_SEMTIMEDOP 4
#define RECORD_MSGSND 11
#define RECORD_MSGRCV 12
#define RECORD_MSGGET 13
#define RECORD_MSGCTL 14
#define RECORD_SHMAT 21
#define RECORD_SHMDT 22
#define RECORD_SHMGET 23
#define RECORD_SHMCTL 24
/* These macros are the values of the first argument of system call
"sys_quotactl". The values of these macros were obtained from Linux
Kernel source. */
#define RECORD_Q_GETFMT 0x800004
#define RECORD_Q_GETINFO 0x800005
#define RECORD_Q_GETQUOTA 0x800007
#define RECORD_Q_XGETQSTAT (('5' << 8) + 5)
#define RECORD_Q_XGETQUOTA (('3' << 8) + 3)
#define OUTPUT_REG(val, num) phex_nz ((val), \
gdbarch_register_type (regcache->arch (), (num))->length ())
/* Record a memory area of length LEN pointed to by register
REGNUM. */
static int
record_mem_at_reg (struct regcache *regcache, int regnum, int len)
{
ULONGEST addr;
regcache_raw_read_unsigned (regcache, regnum, &addr);
return record_full_arch_list_add_mem ((CORE_ADDR) addr, len);
}
static int
record_linux_sockaddr (struct regcache *regcache,
struct linux_record_tdep *tdep, ULONGEST addr,
ULONGEST len)
{
gdb_byte *a;
int addrlen;
struct gdbarch *gdbarch = regcache->arch ();
enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
if (!addr)
return 0;
a = (gdb_byte *) alloca (tdep->size_int);
if (record_full_arch_list_add_mem ((CORE_ADDR) len, tdep->size_int))
return -1;
/* Get the addrlen. */
if (target_read_memory ((CORE_ADDR) len, a, tdep->size_int))
{
if (record_debug)
gdb_printf (gdb_stdlog,
"Process record: error reading "
"memory at addr = 0x%s len = %d.\n",
phex_nz (len, tdep->size_pointer),
tdep->size_int);
return -1;
}
addrlen = (int) extract_unsigned_integer (a, tdep->size_int, byte_order);
if (addrlen <= 0 || addrlen > tdep->size_sockaddr)
addrlen = tdep->size_sockaddr;
if (record_full_arch_list_add_mem ((CORE_ADDR) addr, addrlen))
return -1;
return 0;
}
static int
record_linux_msghdr (struct regcache *regcache,
struct linux_record_tdep *tdep, ULONGEST addr)
{
gdb_byte *a;
struct gdbarch *gdbarch = regcache->arch ();
enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
CORE_ADDR tmpaddr;
int tmpint;
if (!addr)
return 0;
if (record_full_arch_list_add_mem ((CORE_ADDR) addr, tdep->size_msghdr))
return -1;
a = (gdb_byte *) alloca (tdep->size_msghdr);
if (target_read_memory ((CORE_ADDR) addr, a, tdep->size_msghdr))
{
if (record_debug)
gdb_printf (gdb_stdlog,
"Process record: error reading "
"memory at addr = 0x%s "
"len = %d.\n",
phex_nz (addr, tdep->size_pointer),
tdep->size_msghdr);
return -1;
}
/* msg_name msg_namelen */
addr = extract_unsigned_integer (a, tdep->size_pointer, byte_order);
a += tdep->size_pointer;
if (record_full_arch_list_add_mem
((CORE_ADDR) addr,
(int) extract_unsigned_integer (a,
tdep->size_int,
byte_order)))
return -1;
/* We have read an int, but skip size_pointer bytes to account for alignment
of the next field on 64-bit targets. */
a += tdep->size_pointer;
/* msg_iov msg_iovlen */
addr = extract_unsigned_integer (a, tdep->size_pointer, byte_order);
a += tdep->size_pointer;
if (addr)
{
ULONGEST i;
ULONGEST len = extract_unsigned_integer (a, tdep->size_size_t,
byte_order);
gdb_byte *iov = (gdb_byte *) alloca (tdep->size_iovec);
for (i = 0; i < len; i++)
{
if (target_read_memory ((CORE_ADDR) addr, iov, tdep->size_iovec))
{
if (record_debug)
gdb_printf (gdb_stdlog,
"Process record: error "
"reading memory at "
"addr = 0x%s "
"len = %d.\n",
phex_nz (addr,tdep->size_pointer),
tdep->size_iovec);
return -1;
}
tmpaddr = (CORE_ADDR) extract_unsigned_integer (iov,
tdep->size_pointer,
byte_order);
tmpint = (int) extract_unsigned_integer (iov + tdep->size_pointer,
tdep->size_size_t,
byte_order);
if (record_full_arch_list_add_mem (tmpaddr, tmpint))
return -1;
addr += tdep->size_iovec;
}
}
a += tdep->size_size_t;
/* msg_control msg_controllen */
addr = extract_unsigned_integer (a, tdep->size_pointer, byte_order);
a += tdep->size_pointer;
tmpint = (int) extract_unsigned_integer (a, tdep->size_size_t, byte_order);
if (record_full_arch_list_add_mem ((CORE_ADDR) addr, tmpint))
return -1;
return 0;
}
/* When the architecture process record get a Linux syscall
instruction, it will get a Linux syscall number of this
architecture and convert it to the Linux syscall number "num" which
is internal to GDB. Most Linux syscalls across architectures in
Linux would be similar and mostly differ by sizes of types and
structures. This sizes are put to "tdep".
Record the values of the registers and memory that will be changed
in current system call.
Return -1 if something wrong. */
int
record_linux_system_call (enum gdb_syscall syscall,
struct regcache *regcache,
struct linux_record_tdep *tdep)
{
struct gdbarch *gdbarch = regcache->arch ();
enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
ULONGEST tmpulongest;
CORE_ADDR tmpaddr;
int tmpint;
switch (syscall)
{
case gdb_sys_restart_syscall:
break;
case gdb_sys_exit:
if (yquery (_("The next instruction is syscall exit. "
"It will make the program exit. "
"Do you want to stop the program?")))
return 1;
break;
case gdb_sys_fork:
break;
case gdb_sys_read:
case gdb_sys_readlink:
case gdb_sys_recv:
regcache_raw_read_unsigned (regcache, tdep->arg3, &tmpulongest);
if (record_mem_at_reg (regcache, tdep->arg2, (int) tmpulongest))
return -1;
break;
case gdb_sys_write:
case gdb_sys_open:
case gdb_sys_close:
break;
case gdb_sys_waitpid:
regcache_raw_read_unsigned (regcache, tdep->arg2, &tmpulongest);
if (tmpulongest)
if (record_full_arch_list_add_mem ((CORE_ADDR) tmpulongest,
tdep->size_int))
return -1;
break;
case gdb_sys_creat:
case gdb_sys_link:
case gdb_sys_unlink:
case gdb_sys_execve:
case gdb_sys_chdir:
break;
case gdb_sys_time:
regcache_raw_read_unsigned (regcache, tdep->arg1, &tmpulongest);
if (tmpulongest)
if (record_full_arch_list_add_mem ((CORE_ADDR) tmpulongest,
tdep->size_time_t))
return -1;
break;
case gdb_sys_mknod:
case gdb_sys_chmod:
case gdb_sys_lchown16:
case gdb_sys_ni_syscall17:
break;
case gdb_sys_stat:
case gdb_sys_fstat:
case gdb_sys_lstat:
if (record_mem_at_reg (regcache, tdep->arg2,
tdep->size__old_kernel_stat))
return -1;
break;
case gdb_sys_lseek:
case gdb_sys_getpid:
case gdb_sys_mount:
case gdb_sys_oldumount:
case gdb_sys_setuid16:
case gdb_sys_getuid16:
case gdb_sys_stime:
break;
case gdb_sys_ptrace:
regcache_raw_read_unsigned (regcache, tdep->arg1, &tmpulongest);
if (tmpulongest == RECORD_PTRACE_PEEKTEXT
|| tmpulongest == RECORD_PTRACE_PEEKDATA
|| tmpulongest == RECORD_PTRACE_PEEKUSR)
{
if (record_mem_at_reg (regcache, tdep->arg4, 4))
return -1;
}
break;
case gdb_sys_alarm:
case gdb_sys_pause:
case gdb_sys_utime:
case gdb_sys_ni_syscall31:
case gdb_sys_ni_syscall32:
case gdb_sys_access:
case gdb_sys_nice:
case gdb_sys_ni_syscall35:
case gdb_sys_sync:
case gdb_sys_kill:
case gdb_sys_rename:
case gdb_sys_mkdir:
case gdb_sys_rmdir:
case gdb_sys_dup:
break;
case gdb_sys_pipe:
case gdb_sys_pipe2:
if (record_mem_at_reg (regcache, tdep->arg1, tdep->size_int * 2))
return -1;
break;
case gdb_sys_getrandom:
regcache_raw_read_unsigned (regcache, tdep->arg2, &tmpulongest);
if (record_mem_at_reg (regcache, tdep->arg1, tmpulongest))
return -1;
break;
case gdb_sys_times:
if (record_mem_at_reg (regcache, tdep->arg1, tdep->size_tms))
return -1;
break;
case gdb_sys_ni_syscall44:
case gdb_sys_brk:
case gdb_sys_setgid16:
case gdb_sys_getgid16:
case gdb_sys_signal:
case gdb_sys_geteuid16:
case gdb_sys_getegid16:
case gdb_sys_acct:
case gdb_sys_umount:
case gdb_sys_ni_syscall53:
break;
case gdb_sys_ioctl:
/* XXX Need to add a lot of support of other ioctl requests. */
regcache_raw_read_unsigned (regcache, tdep->arg2, &tmpulongest);
if (tmpulongest == tdep->ioctl_FIOCLEX
|| tmpulongest == tdep->ioctl_FIONCLEX
|| tmpulongest == tdep->ioctl_FIONBIO
|| tmpulongest == tdep->ioctl_FIOASYNC
|| tmpulongest == tdep->ioctl_TCSETS
|| tmpulongest == tdep->ioctl_TCSETSW
|| tmpulongest == tdep->ioctl_TCSETSF
|| tmpulongest == tdep->ioctl_TCSETA
|| tmpulongest == tdep->ioctl_TCSETAW
|| tmpulongest == tdep->ioctl_TCSETAF
|| tmpulongest == tdep->ioctl_TCSBRK
|| tmpulongest == tdep->ioctl_TCXONC
|| tmpulongest == tdep->ioctl_TCFLSH
|| tmpulongest == tdep->ioctl_TIOCEXCL
|| tmpulongest == tdep->ioctl_TIOCNXCL
|| tmpulongest == tdep->ioctl_TIOCSCTTY
|| tmpulongest == tdep->ioctl_TIOCSPGRP
|| tmpulongest == tdep->ioctl_TIOCSTI
|| tmpulongest == tdep->ioctl_TIOCSWINSZ
|| tmpulongest == tdep->ioctl_TIOCMBIS
|| tmpulongest == tdep->ioctl_TIOCMBIC
|| tmpulongest == tdep->ioctl_TIOCMSET
|| tmpulongest == tdep->ioctl_TIOCSSOFTCAR
|| tmpulongest == tdep->ioctl_TIOCCONS
|| tmpulongest == tdep->ioctl_TIOCSSERIAL
|| tmpulongest == tdep->ioctl_TIOCPKT
|| tmpulongest == tdep->ioctl_TIOCNOTTY
|| tmpulongest == tdep->ioctl_TIOCSETD
|| tmpulongest == tdep->ioctl_TCSBRKP
|| tmpulongest == tdep->ioctl_TIOCTTYGSTRUCT
|| tmpulongest == tdep->ioctl_TIOCSBRK
|| tmpulongest == tdep->ioctl_TIOCCBRK
|| tmpulongest == tdep->ioctl_TCSETS2
|| tmpulongest == tdep->ioctl_TCSETSW2
|| tmpulongest == tdep->ioctl_TCSETSF2
|| tmpulongest == tdep->ioctl_TIOCSPTLCK
|| tmpulongest == tdep->ioctl_TIOCSERCONFIG
|| tmpulongest == tdep->ioctl_TIOCSERGWILD
|| tmpulongest == tdep->ioctl_TIOCSERSWILD
|| tmpulongest == tdep->ioctl_TIOCSLCKTRMIOS
|| tmpulongest == tdep->ioctl_TIOCSERGETMULTI
|| tmpulongest == tdep->ioctl_TIOCSERSETMULTI
|| tmpulongest == tdep->ioctl_TIOCMIWAIT
|| tmpulongest == tdep->ioctl_TIOCSHAYESESP)
{
/* Nothing to do. */
}
else if (tmpulongest == tdep->ioctl_TCGETS
|| tmpulongest == tdep->ioctl_TCGETA
|| tmpulongest == tdep->ioctl_TIOCGLCKTRMIOS)
{
if (record_mem_at_reg (regcache, tdep->arg3,
tdep->size_termios))
return -1;
}
else if (tmpulongest == tdep->ioctl_TIOCGPGRP
|| tmpulongest == tdep->ioctl_TIOCGSID)
{
if (record_mem_at_reg (regcache, tdep->arg3, tdep->size_pid_t))
return -1;
}
else if (tmpulongest == tdep->ioctl_TIOCOUTQ
|| tmpulongest == tdep->ioctl_TIOCMGET
|| tmpulongest == tdep->ioctl_TIOCGSOFTCAR
|| tmpulongest == tdep->ioctl_FIONREAD
|| tmpulongest == tdep->ioctl_TIOCINQ
|| tmpulongest == tdep->ioctl_TIOCGETD
|| tmpulongest == tdep->ioctl_TIOCGPTN
|| tmpulongest == tdep->ioctl_TIOCSERGETLSR)
{
if (record_mem_at_reg (regcache, tdep->arg3, tdep->size_int))
return -1;
}
else if (tmpulongest == tdep->ioctl_TIOCGWINSZ)
{
if (record_mem_at_reg (regcache, tdep->arg3,
tdep->size_winsize))
return -1;
}
else if (tmpulongest == tdep->ioctl_TIOCLINUX)
{
/* This syscall affects a char-size memory. */
if (record_mem_at_reg (regcache, tdep->arg3, 1))
return -1;
}
else if (tmpulongest == tdep->ioctl_TIOCGSERIAL)
{
if (record_mem_at_reg (regcache, tdep->arg3,
tdep->size_serial_struct))
return -1;
}
else if (tmpulongest == tdep->ioctl_TCGETS2)
{
if (record_mem_at_reg (regcache, tdep->arg3,
tdep->size_termios2))
return -1;
}
else if (tmpulongest == tdep->ioctl_FIOQSIZE)
{
if (record_mem_at_reg (regcache, tdep->arg3, tdep->size_loff_t))
return -1;
}
else if (tmpulongest == tdep->ioctl_TIOCGICOUNT)
{
if (record_mem_at_reg (regcache, tdep->arg3,
tdep->size_serial_icounter_struct))
return -1;
}
else if (tmpulongest == tdep->ioctl_TIOCGHAYESESP)
{
if (record_mem_at_reg (regcache, tdep->arg3,
tdep->size_hayes_esp_config))
return -1;
}
else if (tmpulongest == tdep->ioctl_TIOCSERGSTRUCT)
{
gdb_printf (gdb_stderr,
_("Process record and replay target doesn't "
"support ioctl request TIOCSERGSTRUCT\n"));
return 1;
}
else
{
gdb_printf (gdb_stderr,
_("Process record and replay target doesn't "
"support ioctl request 0x%s.\n"),
OUTPUT_REG (tmpulongest, tdep->arg2));
return 1;
}
break;
case gdb_sys_fcntl:
/* XXX */
regcache_raw_read_unsigned (regcache, tdep->arg2, &tmpulongest);
sys_fcntl:
if (tmpulongest == tdep->fcntl_F_GETLK)
{
if (record_mem_at_reg (regcache, tdep->arg3, tdep->size_flock))
return -1;
}
break;
case gdb_sys_ni_syscall56:
case gdb_sys_setpgid:
case gdb_sys_ni_syscall58:
break;
case gdb_sys_olduname:
if (record_mem_at_reg (regcache, tdep->arg1,
tdep->size_oldold_utsname))
return -1;
break;
case gdb_sys_umask:
case gdb_sys_chroot:
break;
case gdb_sys_ustat:
if (record_mem_at_reg (regcache, tdep->arg2, tdep->size_ustat))
return -1;
break;
case gdb_sys_dup2:
case gdb_sys_getppid:
case gdb_sys_getpgrp:
case gdb_sys_setsid:
break;
case gdb_sys_sigaction:
if (record_mem_at_reg (regcache, tdep->arg3,
tdep->size_old_sigaction))
return -1;
break;
case gdb_sys_sgetmask:
case gdb_sys_ssetmask:
case gdb_sys_setreuid16:
case gdb_sys_setregid16:
case gdb_sys_sigsuspend:
break;
case gdb_sys_sigpending:
if (record_mem_at_reg (regcache, tdep->arg1,
tdep->size_old_sigset_t))
return -1;
break;
case gdb_sys_sethostname:
case gdb_sys_setrlimit:
break;
case gdb_sys_old_getrlimit:
if (record_mem_at_reg (regcache, tdep->arg2, tdep->size_rlimit))
return -1;
break;
case gdb_sys_getrusage:
if (record_mem_at_reg (regcache, tdep->arg2, tdep->size_rusage))
return -1;
break;
case gdb_sys_gettimeofday:
if (record_mem_at_reg (regcache, tdep->arg1, tdep->size_timeval)
|| record_mem_at_reg (regcache, tdep->arg2, tdep->size_timezone))
return -1;
break;
case gdb_sys_settimeofday:
break;
case gdb_sys_getgroups16:
regcache_raw_read_unsigned (regcache, tdep->arg2, &tmpulongest);
if (tmpulongest)
{
ULONGEST gidsetsize;
regcache_raw_read_unsigned (regcache, tdep->arg1,
&gidsetsize);
tmpint = tdep->size_old_gid_t * (int) gidsetsize;
if (record_full_arch_list_add_mem ((CORE_ADDR) tmpulongest, tmpint))
return -1;
}
break;
case gdb_sys_setgroups16:
break;
case gdb_old_select:
{
unsigned long sz_sel_arg = tdep->size_long + tdep->size_pointer * 4;
gdb_byte *a = (gdb_byte *) alloca (sz_sel_arg);
CORE_ADDR inp, outp, exp, tvp;
regcache_raw_read_unsigned (regcache, tdep->arg1,
&tmpulongest);
if (tmpulongest)
{
if (target_read_memory (tmpulongest, a, sz_sel_arg))
{
if (record_debug)
gdb_printf (gdb_stdlog,
"Process record: error reading memory "
"at addr = 0x%s len = %lu.\n",
OUTPUT_REG (tmpulongest, tdep->arg1),
sz_sel_arg);
return -1;
}
/* Skip n. */
a += tdep->size_long;
inp = extract_unsigned_integer (a, tdep->size_pointer, byte_order);
a += tdep->size_pointer;
outp = extract_unsigned_integer (a, tdep->size_pointer, byte_order);
a += tdep->size_pointer;
exp = extract_unsigned_integer (a, tdep->size_pointer, byte_order);
a += tdep->size_pointer;
tvp = extract_unsigned_integer (a, tdep->size_pointer, byte_order);
if (inp)
if (record_full_arch_list_add_mem (inp, tdep->size_fd_set))
return -1;
if (outp)
if (record_full_arch_list_add_mem (outp, tdep->size_fd_set))
return -1;
if (exp)
if (record_full_arch_list_add_mem (exp, tdep->size_fd_set))
return -1;
if (tvp)
if (record_full_arch_list_add_mem (tvp, tdep->size_timeval))
return -1;
}
}
break;
case gdb_sys_symlink:
break;
case gdb_sys_uselib:
case gdb_sys_swapon:
break;
case gdb_sys_reboot:
if (yquery (_("The next instruction is syscall reboot. "
"It will restart the computer. "
"Do you want to stop the program?")))
return 1;
break;
case gdb_old_readdir:
if (record_mem_at_reg (regcache, tdep->arg2, tdep->size_old_dirent))
return -1;
break;
case gdb_old_mmap:
break;
case gdb_sys_munmap:
{
ULONGEST len;
regcache_raw_read_unsigned (regcache, tdep->arg1,
&tmpulongest);
regcache_raw_read_unsigned (regcache, tdep->arg2, &len);
if (record_full_memory_query)
{
if (yquery (_("\
The next instruction is syscall munmap.\n\
It will free the memory addr = 0x%s len = %u.\n\
It will make record target cannot record some memory change.\n\
Do you want to stop the program?"),
OUTPUT_REG (tmpulongest, tdep->arg1), (int) len))
return 1;
}
}
break;
case gdb_sys_truncate:
case gdb_sys_ftruncate:
case gdb_sys_fchmod:
case gdb_sys_fchown16:
case gdb_sys_getpriority:
case gdb_sys_setpriority:
case gdb_sys_ni_syscall98:
break;
case gdb_sys_statfs:
case gdb_sys_fstatfs:
if (record_mem_at_reg (regcache, tdep->arg2, tdep->size_statfs))
return -1;
break;
case gdb_sys_ioperm:
break;
case gdb_sys_socket:
case gdb_sys_sendto:
case gdb_sys_sendmsg:
case gdb_sys_shutdown:
case gdb_sys_bind:
case gdb_sys_connect:
case gdb_sys_listen:
case gdb_sys_setsockopt:
break;
case gdb_sys_accept:
case gdb_sys_getsockname:
case gdb_sys_getpeername:
{
ULONGEST len;
regcache_raw_read_unsigned (regcache, tdep->arg2, &tmpulongest);
regcache_raw_read_unsigned (regcache, tdep->arg3, &len);
if (record_linux_sockaddr (regcache, tdep, tmpulongest, len))
return -1;
}
break;
case gdb_sys_recvfrom:
{
ULONGEST len;
regcache_raw_read_unsigned (regcache, tdep->arg4, &tmpulongest);
regcache_raw_read_unsigned (regcache, tdep->arg5, &len);
if (record_linux_sockaddr (regcache, tdep, tmpulongest, len))
return -1;
}
break;
case gdb_sys_recvmsg:
regcache_raw_read_unsigned (regcache, tdep->arg2, &tmpulongest);
if (record_linux_msghdr (regcache, tdep, tmpulongest))
return -1;
break;
case gdb_sys_socketpair:
if (record_mem_at_reg (regcache, tdep->arg4, tdep->size_int))
return -1;
break;
case gdb_sys_getsockopt:
regcache_raw_read_unsigned (regcache, tdep->arg5, &tmpulongest);
if (tmpulongest)
{
ULONGEST optvalp;
gdb_byte *optlenp = (gdb_byte *) alloca (tdep->size_int);
if (target_read_memory ((CORE_ADDR) tmpulongest, optlenp,
tdep->size_int))
{
if (record_debug)
gdb_printf (gdb_stdlog,
"Process record: error reading "
"memory at addr = 0x%s "
"len = %d.\n",
OUTPUT_REG (tmpulongest, tdep->arg5),
tdep->size_int);
return -1;
}
regcache_raw_read_unsigned (regcache, tdep->arg4, &optvalp);
tmpint = (int) extract_signed_integer (optlenp, tdep->size_int,
byte_order);
if (record_full_arch_list_add_mem ((CORE_ADDR) optvalp, tmpint))
return -1;
if (record_full_arch_list_add_mem ((CORE_ADDR) tmpulongest,
tdep->size_int))
return -1;
}
break;
case gdb_sys_socketcall:
regcache_raw_read_unsigned (regcache, tdep->arg1, &tmpulongest);
switch (tmpulongest)
{
case RECORD_SYS_SOCKET:
case RECORD_SYS_BIND:
case RECORD_SYS_CONNECT:
case RECORD_SYS_LISTEN:
break;
case RECORD_SYS_ACCEPT:
case RECORD_SYS_GETSOCKNAME:
case RECORD_SYS_GETPEERNAME:
{
regcache_raw_read_unsigned (regcache, tdep->arg2,
&tmpulongest);
if (tmpulongest)
{
gdb_byte *a = (gdb_byte *) alloca (tdep->size_ulong * 2);
ULONGEST len;
tmpulongest += tdep->size_ulong;
if (target_read_memory ((CORE_ADDR) tmpulongest, a,
tdep->size_ulong * 2))
{
if (record_debug)
gdb_printf (gdb_stdlog,
"Process record: error reading "
"memory at addr = 0x%s len = %d.\n",
OUTPUT_REG (tmpulongest, tdep->arg2),
tdep->size_ulong * 2);
return -1;
}
tmpulongest = extract_unsigned_integer (a,
tdep->size_ulong,
byte_order);
len = extract_unsigned_integer (a + tdep->size_ulong,
tdep->size_ulong, byte_order);
if (record_linux_sockaddr (regcache, tdep, tmpulongest, len))
return -1;
}
}
break;
case RECORD_SYS_SOCKETPAIR:
{
gdb_byte *a = (gdb_byte *) alloca (tdep->size_ulong);
regcache_raw_read_unsigned (regcache, tdep->arg2,
&tmpulongest);
if (tmpulongest)
{
tmpulongest += tdep->size_ulong * 3;
if (target_read_memory ((CORE_ADDR) tmpulongest, a,
tdep->size_ulong))
{
if (record_debug)
gdb_printf (gdb_stdlog,
"Process record: error reading "
"memory at addr = 0x%s len = %d.\n",
OUTPUT_REG (tmpulongest, tdep->arg2),
tdep->size_ulong);
return -1;
}
tmpaddr
= (CORE_ADDR) extract_unsigned_integer (a, tdep->size_ulong,
byte_order);
if (record_full_arch_list_add_mem (tmpaddr, tdep->size_int))
return -1;
}
}
break;
case RECORD_SYS_SEND:
case RECORD_SYS_SENDTO:
break;
case RECORD_SYS_RECVFROM:
regcache_raw_read_unsigned (regcache, tdep->arg2,
&tmpulongest);
if (tmpulongest)
{
gdb_byte *a = (gdb_byte *) alloca (tdep->size_ulong * 2);
ULONGEST len;
tmpulongest += tdep->size_ulong * 4;
if (target_read_memory ((CORE_ADDR) tmpulongest, a,
tdep->size_ulong * 2))
{
if (record_debug)
gdb_printf (gdb_stdlog,
"Process record: error reading "
"memory at addr = 0x%s len = %d.\n",
OUTPUT_REG (tmpulongest, tdep->arg2),
tdep->size_ulong * 2);
return -1;
}
tmpulongest = extract_unsigned_integer (a, tdep->size_ulong,
byte_order);
len = extract_unsigned_integer (a + tdep->size_ulong,
tdep->size_ulong, byte_order);
if (record_linux_sockaddr (regcache, tdep, tmpulongest, len))
return -1;
}
break;
case RECORD_SYS_RECV:
regcache_raw_read_unsigned (regcache, tdep->arg2,
&tmpulongest);
if (tmpulongest)
{
gdb_byte *a = (gdb_byte *) alloca (tdep->size_ulong * 2);
tmpulongest += tdep->size_ulong;
if (target_read_memory ((CORE_ADDR) tmpulongest, a,
tdep->size_ulong))
{
if (record_debug)
gdb_printf (gdb_stdlog,
"Process record: error reading "
"memory at addr = 0x%s len = %d.\n",
OUTPUT_REG (tmpulongest, tdep->arg2),
tdep->size_ulong);
return -1;
}
tmpulongest = extract_unsigned_integer (a, tdep->size_ulong,
byte_order);
if (tmpulongest)
{
a += tdep->size_ulong;
tmpint = (int) extract_unsigned_integer (a, tdep->size_ulong,
byte_order);
if (record_full_arch_list_add_mem ((CORE_ADDR) tmpulongest,
tmpint))
return -1;
}
}
break;
case RECORD_SYS_SHUTDOWN:
case RECORD_SYS_SETSOCKOPT:
break;
case RECORD_SYS_GETSOCKOPT:
{
gdb_byte *a = (gdb_byte *) alloca (tdep->size_ulong * 2);
gdb_byte *av = (gdb_byte *) alloca (tdep->size_int);
regcache_raw_read_unsigned (regcache, tdep->arg2,
&tmpulongest);
if (tmpulongest)
{
tmpulongest += tdep->size_ulong * 3;
if (target_read_memory ((CORE_ADDR) tmpulongest, a,
tdep->size_ulong * 2))
{
if (record_debug)
gdb_printf (gdb_stdlog,
"Process record: error reading "
"memory at addr = 0x%s len = %d.\n",
OUTPUT_REG (tmpulongest, tdep->arg2),
tdep->size_ulong * 2);
return -1;
}
tmpulongest = extract_unsigned_integer (a + tdep->size_ulong,
tdep->size_ulong,
byte_order);
if (tmpulongest)
{
if (target_read_memory ((CORE_ADDR) tmpulongest, av,
tdep->size_int))
{
if (record_debug)
gdb_printf (gdb_stdlog,
"Process record: error reading "
"memory at addr = 0x%s "
"len = %d.\n",
phex_nz (tmpulongest,
tdep->size_ulong),
tdep->size_int);
return -1;
}
tmpaddr
= (CORE_ADDR) extract_unsigned_integer (a,
tdep->size_ulong,
byte_order);
tmpint = (int) extract_unsigned_integer (av,
tdep->size_int,
byte_order);
if (record_full_arch_list_add_mem (tmpaddr, tmpint))
return -1;
a += tdep->size_ulong;
tmpaddr
= (CORE_ADDR) extract_unsigned_integer (a,
tdep->size_ulong,
byte_order);
if (record_full_arch_list_add_mem (tmpaddr,
tdep->size_int))
return -1;
}
}
}
break;
case RECORD_SYS_SENDMSG:
break;
case RECORD_SYS_RECVMSG:
{
gdb_byte *a = (gdb_byte *) alloca (tdep->size_ulong);
regcache_raw_read_unsigned (regcache, tdep->arg2,
&tmpulongest);
if (tmpulongest)
{
tmpulongest += tdep->size_ulong;
if (target_read_memory ((CORE_ADDR) tmpulongest, a,