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Re: [PATCH] arm-syscall record support [phase-3]
Hi All,
please find the integrated patch of syscall record support and
linux-record.o compilation inclusion.
diff -urN orig/configure.tgt new/configure.tgt
--- orig/configure.tgt 2012-06-18 12:36:47.274501400 +0530
+++ new/configure.tgt 2012-06-18 12:31:47.335501400 +0530
@@ -76,7 +76,7 @@
arm*-*-linux*)
# Target: ARM based machine running GNU/Linux
gdb_target_obs="arm-tdep.o arm-linux-tdep.o glibc-tdep.o \
- solib-svr4.o symfile-mem.o linux-tdep.o"
+ solib-svr4.o symfile-mem.o linux-tdep.o linux-record.o"
build_gdbserver=yes
;;
arm*-*-netbsd* | arm*-*-knetbsd*-gnu)
diff -urN orig/arm-linux-tdep.c new/arm-linux-tdep.c
--- orig/arm-linux-tdep.c 2012-04-28 02:17:52.000000000 +0530
+++ new/arm-linux-tdep.c 2012-06-08 17:55:28.541657600 +0530
@@ -43,6 +43,9 @@
#include "gdbthread.h"
#include "symfile.h"
+#include "record.h"
+#include "linux-record.h"
+
#include "cli/cli-utils.h"
#include "stap-probe.h"
#include "parser-defs.h"
@@ -1178,6 +1181,141 @@
return 1;
}
+
+
+
+/* Record-Replay constructs; syscall, signal etc. */
+
+#define ARM_R0_REGNUM ARM_A1_REGNUM
+#define ARM_R1_REGNUM ARM_R0_REGNUM + 1
+#define ARM_R2_REGNUM ARM_R1_REGNUM + 1
+#define ARM_R3_REGNUM ARM_R2_REGNUM + 1
+#define ARM_R4_REGNUM ARM_R3_REGNUM + 1
+#define ARM_R5_REGNUM ARM_R4_REGNUM + 1
+#define ARM_R6_REGNUM ARM_R5_REGNUM + 1
+#define ARM_R7_REGNUM ARM_R6_REGNUM + 1
+#define ARM_R8_REGNUM ARM_R7_REGNUM + 1
+#define ARM_R9_REGNUM ARM_R8_REGNUM + 1
+#define ARM_R10_REGNUM ARM_R9_REGNUM + 1
+#define ARM_R11_REGNUM ARM_R10_REGNUM + 1
+#define ARM_R12_REGNUM ARM_R11_REGNUM + 1
+#define ARM_R13_REGNUM ARM_R12_REGNUM + 1
+#define ARM_R14_REGNUM ARM_R13_REGNUM + 1
+
+struct linux_record_tdep arm_linux_record_tdep;
+
+static enum gdb_syscall
+arm_canonicalize_syscall (int syscall)
+{
+ enum { sys_process_vm_writev = 377 };
+
+ if (syscall <= sys_process_vm_writev)
+ {
+ if (syscall <= gdb_sys_sched_getaffinity)
+ return syscall;
+ }
+
+ return -1;
+}
+
+
+static int
+arm_all_but_pc_registers_record (struct regcache *regcache)
+{
+ if (record_arch_list_add_reg (regcache, ARM_R0_REGNUM))
+ return -1;
+ if (record_arch_list_add_reg (regcache, ARM_R1_REGNUM))
+ return -1;
+ if (record_arch_list_add_reg (regcache, ARM_R2_REGNUM))
+ return -1;
+ if (record_arch_list_add_reg (regcache, ARM_R3_REGNUM))
+ return -1;
+ if (record_arch_list_add_reg (regcache, ARM_R4_REGNUM))
+ return -1;
+ if (record_arch_list_add_reg (regcache, ARM_R5_REGNUM))
+ return -1;
+ if (record_arch_list_add_reg (regcache, ARM_R6_REGNUM))
+ return -1;
+ if (record_arch_list_add_reg (regcache, ARM_R7_REGNUM))
+ return -1;
+ if (record_arch_list_add_reg (regcache, ARM_R8_REGNUM))
+ return -1;
+ if (record_arch_list_add_reg (regcache, ARM_R9_REGNUM))
+ return -1;
+ if (record_arch_list_add_reg (regcache, ARM_R10_REGNUM))
+ return -1;
+ if (record_arch_list_add_reg (regcache, ARM_R11_REGNUM))
+ return -1;
+ if (record_arch_list_add_reg (regcache, ARM_R12_REGNUM))
+ return -1;
+ if (record_arch_list_add_reg (regcache, ARM_R13_REGNUM))
+ return -1;
+ if (record_arch_list_add_reg (regcache, ARM_R14_REGNUM))
+ return -1;
+ if (record_arch_list_add_reg (regcache, ARM_PS_REGNUM))
+ return -1;
+
+ return 0;
+}
+
+/* Record the system call.
+ Record Change in followign registers.
+ ARM_LR_REGNUM >> next insn to be executed
+ ARM_SP_REGNUM
+ SPSR << CPSR
+ CPSR
+ ARM_R0_REGNUM >> syscall number
+ ARM_R1_REGNUM >> arg1
+ ARM_R2_REGNUM >> arg2
+ ARM_R3_REGNUM >> arg3
+ ARM_R4_REGNUM >> arg4. */
+
+static int
+arm_linux_swi_syscall_record (struct regcache *regcache)
+{
+ int ret;
+ LONGEST syscall_native;
+ enum gdb_syscall syscall_gdb;
+
+ regcache_raw_read_signed (regcache, ARM_R0_REGNUM, &syscall_native);
+
+ syscall_gdb = arm_canonicalize_syscall (syscall_native);
+
+ if (syscall_gdb < 0)
+ {
+ printf_unfiltered (_("Process record and replay target doesn't "
+ "support syscall number %s\n"),
+ plongest (syscall_native));
+ return -1;
+ }
+
+ if (syscall_gdb == gdb_sys_sigreturn
+ || syscall_gdb == gdb_sys_rt_sigreturn)
+ {
+ if (arm_all_but_pc_registers_record (regcache))
+ return -1;
+ return 0;
+ }
+
+ ret = record_linux_system_call (syscall_gdb, regcache,
+ &arm_linux_record_tdep);
+ if (ret)
+ return ret;
+
+ /* Record the return value of the system call. */
+ if (record_arch_list_add_reg (regcache, ARM_R0_REGNUM))
+ return -1;
+ /* Record LR. */
+ if (record_arch_list_add_reg (regcache, ARM_LR_REGNUM))
+ return -1;
+ /* Record CPSR. */
+ if (record_arch_list_add_reg (regcache, ARM_PS_REGNUM))
+ return -1;
+
+ return 0;
+}
+
+
static void
arm_linux_init_abi (struct gdbarch_info info,
struct gdbarch *gdbarch)
@@ -1293,7 +1431,166 @@
tdep->syscall_next_pc = arm_linux_syscall_next_pc;
/* Syscall record. */
- tdep->arm_swi_record = NULL;
+ tdep->arm_swi_record = arm_linux_swi_syscall_record;
+
+
+ /* Initialize the arm_linux_record_tdep. */
+ /* These values are the size of the type that will be used in a system
+ call. They are obtained from Linux Kernel source. */
+ arm_linux_record_tdep.size_pointer
+ = gdbarch_ptr_bit (gdbarch) / TARGET_CHAR_BIT;
+ arm_linux_record_tdep.size__old_kernel_stat = 32;
+ arm_linux_record_tdep.size_tms = 16;
+ arm_linux_record_tdep.size_loff_t = 8;
+ arm_linux_record_tdep.size_flock = 16;
+ arm_linux_record_tdep.size_oldold_utsname = 45;
+ arm_linux_record_tdep.size_ustat = 20;
+ arm_linux_record_tdep.size_old_sigaction = 140;
+ arm_linux_record_tdep.size_old_sigset_t = 128;
+ arm_linux_record_tdep.size_rlimit = 8;
+ arm_linux_record_tdep.size_rusage = 72;
+ arm_linux_record_tdep.size_timeval = 8;
+ arm_linux_record_tdep.size_timezone = 8;
+ arm_linux_record_tdep.size_old_gid_t = 2;
+ arm_linux_record_tdep.size_old_uid_t = 2;
+ arm_linux_record_tdep.size_fd_set = 128;
+ arm_linux_record_tdep.size_dirent = 268;
+ arm_linux_record_tdep.size_dirent64 = 276;
+ arm_linux_record_tdep.size_statfs = 64;
+ arm_linux_record_tdep.size_statfs64 = 84;
+ arm_linux_record_tdep.size_sockaddr = 16;
+ arm_linux_record_tdep.size_int
+ = gdbarch_int_bit (gdbarch) / TARGET_CHAR_BIT;
+ arm_linux_record_tdep.size_long
+ = gdbarch_long_bit (gdbarch) / TARGET_CHAR_BIT;
+ arm_linux_record_tdep.size_ulong
+ = gdbarch_long_bit (gdbarch) / TARGET_CHAR_BIT;
+ arm_linux_record_tdep.size_msghdr = 28;
+ arm_linux_record_tdep.size_itimerval = 16;
+ arm_linux_record_tdep.size_stat = 88;
+ arm_linux_record_tdep.size_old_utsname = 325;
+ arm_linux_record_tdep.size_sysinfo = 64;
+ arm_linux_record_tdep.size_msqid_ds = 88;
+ arm_linux_record_tdep.size_shmid_ds = 84;
+ arm_linux_record_tdep.size_new_utsname = 390;
+ arm_linux_record_tdep.size_timex = 128;
+ arm_linux_record_tdep.size_mem_dqinfo = 24;
+ arm_linux_record_tdep.size_if_dqblk = 68;
+ arm_linux_record_tdep.size_fs_quota_stat = 68;
+ arm_linux_record_tdep.size_timespec = 8;
+ arm_linux_record_tdep.size_pollfd = 8;
+ arm_linux_record_tdep.size_NFS_FHSIZE = 32;
+ arm_linux_record_tdep.size_knfsd_fh = 132;
+ arm_linux_record_tdep.size_TASK_COMM_LEN = 16;
+ arm_linux_record_tdep.size_sigaction = 140;
+ arm_linux_record_tdep.size_sigset_t = 8;
+ arm_linux_record_tdep.size_siginfo_t = 128;
+ arm_linux_record_tdep.size_cap_user_data_t = 12;
+ arm_linux_record_tdep.size_stack_t = 12;
+ arm_linux_record_tdep.size_off_t = arm_linux_record_tdep.size_long;
+ arm_linux_record_tdep.size_stat64 = 96;
+ arm_linux_record_tdep.size_gid_t = 2;
+ arm_linux_record_tdep.size_uid_t = 2;
+ arm_linux_record_tdep.size_PAGE_SIZE = 4096;
+ arm_linux_record_tdep.size_flock64 = 24;
+ arm_linux_record_tdep.size_user_desc = 16;
+ arm_linux_record_tdep.size_io_event = 32;
+ arm_linux_record_tdep.size_iocb = 64;
+ arm_linux_record_tdep.size_epoll_event = 12;
+ arm_linux_record_tdep.size_itimerspec
+ = arm_linux_record_tdep.size_timespec * 2;
+ arm_linux_record_tdep.size_mq_attr = 32;
+ arm_linux_record_tdep.size_siginfo = 128;
+ arm_linux_record_tdep.size_termios = 36;
+ arm_linux_record_tdep.size_termios2 = 44;
+ arm_linux_record_tdep.size_pid_t = 4;
+ arm_linux_record_tdep.size_winsize = 8;
+ arm_linux_record_tdep.size_serial_struct = 60;
+ arm_linux_record_tdep.size_serial_icounter_struct = 80;
+ arm_linux_record_tdep.size_hayes_esp_config = 12;
+ arm_linux_record_tdep.size_size_t = 4;
+ arm_linux_record_tdep.size_iovec = 8;
+
+
+ /* These values are the second argument of system call "sys_ioctl".
+ They are obtained from Linux Kernel source. */
+ arm_linux_record_tdep.ioctl_TCGETS = 0x5401;
+ arm_linux_record_tdep.ioctl_TCSETS = 0x5402;
+ arm_linux_record_tdep.ioctl_TCSETSW = 0x5403;
+ arm_linux_record_tdep.ioctl_TCSETSF = 0x5404;
+ arm_linux_record_tdep.ioctl_TCGETA = 0x5405;
+ arm_linux_record_tdep.ioctl_TCSETA = 0x5406;
+ arm_linux_record_tdep.ioctl_TCSETAW = 0x5407;
+ arm_linux_record_tdep.ioctl_TCSETAF = 0x5408;
+ arm_linux_record_tdep.ioctl_TCSBRK = 0x5409;
+ arm_linux_record_tdep.ioctl_TCXONC = 0x540A;
+ arm_linux_record_tdep.ioctl_TCFLSH = 0x540B;
+ arm_linux_record_tdep.ioctl_TIOCEXCL = 0x540C;
+ arm_linux_record_tdep.ioctl_TIOCNXCL = 0x540D;
+ arm_linux_record_tdep.ioctl_TIOCSCTTY = 0x540E;
+ arm_linux_record_tdep.ioctl_TIOCGPGRP = 0x540F;
+ arm_linux_record_tdep.ioctl_TIOCSPGRP = 0x5410;
+ arm_linux_record_tdep.ioctl_TIOCOUTQ = 0x5411;
+ arm_linux_record_tdep.ioctl_TIOCSTI = 0x5412;
+ arm_linux_record_tdep.ioctl_TIOCGWINSZ = 0x5413;
+ arm_linux_record_tdep.ioctl_TIOCSWINSZ = 0x5414;
+ arm_linux_record_tdep.ioctl_TIOCMGET = 0x5415;
+ arm_linux_record_tdep.ioctl_TIOCMBIS = 0x5416;
+ arm_linux_record_tdep.ioctl_TIOCMBIC = 0x5417;
+ arm_linux_record_tdep.ioctl_TIOCMSET = 0x5418;
+ arm_linux_record_tdep.ioctl_TIOCGSOFTCAR = 0x5419;
+ arm_linux_record_tdep.ioctl_TIOCSSOFTCAR = 0x541A;
+ arm_linux_record_tdep.ioctl_FIONREAD = 0x541B;
+ arm_linux_record_tdep.ioctl_TIOCINQ = arm_linux_record_tdep.ioctl_FIONREAD;
+ arm_linux_record_tdep.ioctl_TIOCLINUX = 0x541C;
+ arm_linux_record_tdep.ioctl_TIOCCONS = 0x541D;
+ arm_linux_record_tdep.ioctl_TIOCGSERIAL = 0x541E;
+ arm_linux_record_tdep.ioctl_TIOCSSERIAL = 0x541F;
+ arm_linux_record_tdep.ioctl_TIOCPKT = 0x5420;
+ arm_linux_record_tdep.ioctl_FIONBIO = 0x5421;
+ arm_linux_record_tdep.ioctl_TIOCNOTTY = 0x5422;
+ arm_linux_record_tdep.ioctl_TIOCSETD = 0x5423;
+ arm_linux_record_tdep.ioctl_TIOCGETD = 0x5424;
+ arm_linux_record_tdep.ioctl_TCSBRKP = 0x5425;
+ arm_linux_record_tdep.ioctl_TIOCTTYGSTRUCT = 0x5426;
+ arm_linux_record_tdep.ioctl_TIOCSBRK = 0x5427;
+ arm_linux_record_tdep.ioctl_TIOCCBRK = 0x5428;
+ arm_linux_record_tdep.ioctl_TIOCGSID = 0x5429;
+ arm_linux_record_tdep.ioctl_TCGETS2 = 0x802c542a;
+ arm_linux_record_tdep.ioctl_TCSETS2 = 0x402c542b;
+ arm_linux_record_tdep.ioctl_TCSETSW2 = 0x402c542c;
+ arm_linux_record_tdep.ioctl_TCSETSF2 = 0x402c542d;
+ arm_linux_record_tdep.ioctl_TIOCGPTN = 0x80045430;
+ arm_linux_record_tdep.ioctl_TIOCSPTLCK = 0x40045431;
+ arm_linux_record_tdep.ioctl_FIONCLEX = 0x5450;
+ arm_linux_record_tdep.ioctl_FIOCLEX = 0x5451;
+ arm_linux_record_tdep.ioctl_FIOASYNC = 0x5452;
+ arm_linux_record_tdep.ioctl_TIOCSERCONFIG = 0x5453;
+ arm_linux_record_tdep.ioctl_TIOCSERGWILD = 0x5454;
+ arm_linux_record_tdep.ioctl_TIOCSERSWILD = 0x5455;
+ arm_linux_record_tdep.ioctl_TIOCGLCKTRMIOS = 0x5456;
+ arm_linux_record_tdep.ioctl_TIOCSLCKTRMIOS = 0x5457;
+ arm_linux_record_tdep.ioctl_TIOCSERGSTRUCT = 0x5458;
+ arm_linux_record_tdep.ioctl_TIOCSERGETLSR = 0x5459;
+ arm_linux_record_tdep.ioctl_TIOCSERGETMULTI = 0x545A;
+ arm_linux_record_tdep.ioctl_TIOCSERSETMULTI = 0x545B;
+ arm_linux_record_tdep.ioctl_TIOCMIWAIT = 0x545C;
+ arm_linux_record_tdep.ioctl_TIOCGICOUNT = 0x545D;
+ arm_linux_record_tdep.ioctl_TIOCGHAYESESP = 0x545E;
+ arm_linux_record_tdep.ioctl_TIOCSHAYESESP = 0x545F;
+ arm_linux_record_tdep.ioctl_FIOQSIZE = 0x5460;
+
+ /* These values are the second argument of system call "sys_fcntl"
+ and "sys_fcntl64". They are obtained from Linux Kernel source. */
+ arm_linux_record_tdep.fcntl_F_GETLK = 5;
+ arm_linux_record_tdep.fcntl_F_GETLK64 = 12;
+ arm_linux_record_tdep.fcntl_F_SETLK64 = 13;
+ arm_linux_record_tdep.fcntl_F_SETLKW64 = 14;
+
+ arm_linux_record_tdep.arg1 = ARM_R1_REGNUM;
+ arm_linux_record_tdep.arg2 = ARM_R2_REGNUM;
+ arm_linux_record_tdep.arg3 = ARM_R3_REGNUM;
+ arm_linux_record_tdep.arg4 = ARM_R4_REGNUM;
}
/* Provide a prototype to silence -Wmissing-prototypes. */
diff -urN orig/arm-tdep.c new/arm-tdep.c
--- orig/arm-tdep.c 2012-05-19 02:32:48.000000000 +0530
+++ new/arm-tdep.c 2012-06-07 22:36:33.376647300 +0530
@@ -11809,7 +11809,7 @@
{
struct gdbarch_tdep *tdep = gdbarch_tdep (arm_insn_r->gdbarch);
struct regcache *reg_cache = arm_insn_r->regcache;
- uint32_t ret = 0; /* function return value: -1:record failure ;
0:success */
+ uint32_t ret = -1; /* function return value: -1:record failure ;
0:success */
/* Handle SWI insn; system call would be handled over here. */
@@ -11828,6 +11828,7 @@
}
}
+ if (ret)
printf_unfiltered (_("Process record does not support instruction "
"0x%0x at address %s.\n"),arm_insn_r->arm_insn,
paddress (arm_insn_r->gdbarch, arm_insn_r->this_addr));
Regards,
Oza.
On Mon, Jun 18, 2012 at 11:27 AM, oza Pawandeep <oza.pawandeep@gmail.com> wrote:
> Can I check this in ? ?(its syscall record support on ARM)
>
> On Sat, Jun 16, 2012 at 3:03 PM, oza Pawandeep <oza.pawandeep@gmail.com> wrote:
>> Anybody would like to have review comments ? Or I can check it in ?
>>
>> On Wed, Jun 13, 2012 at 9:26 AM, oza Pawandeep <oza.pawandeep@gmail.com> wrote:
>>> Gentle reminder to send review comments if any; although patch is
>>> straightforward.
>>> most of the things are borrowed from linux kernel source and x86 record things.
>>> ok to check in ?
>>>
>>> Regards,
>>> Oza.
>>>
>>> On Fri, Jun 8, 2012 at 6:12 PM, oza Pawandeep <oza.pawandeep@gmail.com> wrote:
>>>> Hi,
>>>>
>>>> This patch provides arm-syscall record support. currently it supports
>>>> till gdb_sys_sched_getaffinity = 242.
>>>>
>>>> TODO :
>>>> signal recording
>>>> IPC recording
>>>> create arm specific xml syscall; ? [dont know about x86, as need to
>>>> use xml there as well which is currently using enumrated values]
>>>>
>>>>
>>>> PATCH starts
>>>> -----------------------------------------------------
>>>> diff -urN orig/arm-linux-tdep.c new/arm-linux-tdep.c
>>>> --- orig/arm-linux-tdep.c ? ? ? 2012-04-28 02:17:52.000000000 +0530
>>>> +++ new/arm-linux-tdep.c ? ? ? ?2012-06-08 17:55:28.541657600 +0530
>>>> @@ -43,6 +43,9 @@
>>>> ?#include "gdbthread.h"
>>>> ?#include "symfile.h"
>>>>
>>>> +#include "record.h"
>>>> +#include "linux-record.h"
>>>> +
>>>> ?#include "cli/cli-utils.h"
>>>> ?#include "stap-probe.h"
>>>> ?#include "parser-defs.h"
>>>> @@ -1178,6 +1181,141 @@
>>>> ? return 1;
>>>> ?}
>>>>
>>>> +/* Record-Replay constructs; syscall, signal etc. ?*/
>>>> +
>>>> +#define ARM_R0_REGNUM ARM_A1_REGNUM
>>>> +#define ARM_R1_REGNUM ARM_R0_REGNUM + 1
>>>> +#define ARM_R2_REGNUM ARM_R1_REGNUM + 1
>>>> +#define ARM_R3_REGNUM ARM_R2_REGNUM + 1
>>>> +#define ARM_R4_REGNUM ARM_R3_REGNUM + 1
>>>> +#define ARM_R5_REGNUM ARM_R4_REGNUM + 1
>>>> +#define ARM_R6_REGNUM ARM_R5_REGNUM + 1
>>>> +#define ARM_R7_REGNUM ARM_R6_REGNUM + 1
>>>> +#define ARM_R8_REGNUM ARM_R7_REGNUM + 1
>>>> +#define ARM_R9_REGNUM ARM_R8_REGNUM + 1
>>>> +#define ARM_R10_REGNUM ARM_R9_REGNUM + 1
>>>> +#define ARM_R11_REGNUM ARM_R10_REGNUM + 1
>>>> +#define ARM_R12_REGNUM ARM_R11_REGNUM + 1
>>>> +#define ARM_R13_REGNUM ARM_R12_REGNUM + 1
>>>> +#define ARM_R14_REGNUM ARM_R13_REGNUM + 1
>>>> +
>>>> +struct linux_record_tdep arm_linux_record_tdep;
>>>> +
>>>> +static enum gdb_syscall
>>>> +arm_canonicalize_syscall (int syscall)
>>>> +{
>>>> + ?enum { sys_process_vm_writev = 377 };
>>>> +
>>>> + ?if (syscall <= sys_process_vm_writev)
>>>> + ? ?{
>>>> + ? ? ?if (syscall <= gdb_sys_sched_getaffinity)
>>>> + ? ? ? ?return syscall;
>>>> + ? ?}
>>>> +
>>>> + ?return -1;
>>>> +}
>>>> +
>>>> +
>>>> +static int
>>>> +arm_all_but_pc_registers_record (struct regcache *regcache)
>>>> +{
>>>> + ?if (record_arch_list_add_reg (regcache, ARM_R0_REGNUM))
>>>> + ? ?return -1;
>>>> + ?if (record_arch_list_add_reg (regcache, ARM_R1_REGNUM))
>>>> + ? ?return -1;
>>>> + ?if (record_arch_list_add_reg (regcache, ARM_R2_REGNUM))
>>>> + ? ?return -1;
>>>> + ?if (record_arch_list_add_reg (regcache, ARM_R3_REGNUM))
>>>> + ? ?return -1;
>>>> + ?if (record_arch_list_add_reg (regcache, ARM_R4_REGNUM))
>>>> + ? ?return -1;
>>>> + ?if (record_arch_list_add_reg (regcache, ARM_R5_REGNUM))
>>>> + ? ?return -1;
>>>> + ?if (record_arch_list_add_reg (regcache, ARM_R6_REGNUM))
>>>> + ? ?return -1;
>>>> + ?if (record_arch_list_add_reg (regcache, ARM_R7_REGNUM))
>>>> + ? ?return -1;
>>>> + ?if (record_arch_list_add_reg (regcache, ARM_R8_REGNUM))
>>>> + ? ?return -1;
>>>> + ?if (record_arch_list_add_reg (regcache, ARM_R9_REGNUM))
>>>> + ? ?return -1;
>>>> + ?if (record_arch_list_add_reg (regcache, ARM_R10_REGNUM))
>>>> + ? ?return -1;
>>>> + ?if (record_arch_list_add_reg (regcache, ARM_R11_REGNUM))
>>>> + ? ?return -1;
>>>> + ?if (record_arch_list_add_reg (regcache, ARM_R12_REGNUM))
>>>> + ? ?return -1;
>>>> + ?if (record_arch_list_add_reg (regcache, ARM_R13_REGNUM))
>>>> + ? ?return -1;
>>>> + ?if (record_arch_list_add_reg (regcache, ARM_R14_REGNUM))
>>>> + ? ?return -1;
>>>> + ?if (record_arch_list_add_reg (regcache, ARM_PS_REGNUM))
>>>> + ? ?return -1;
>>>> +
>>>> + ?return 0;
>>>> +}
>>>> +
>>>> +/* Record the system call.
>>>> + ? Record Change in followign registers.
>>>> + ? ARM_LR_REGNUM >> next insn to be executed
>>>> + ? ARM_SP_REGNUM
>>>> + ? SPSR << CPSR
>>>> + ? CPSR
>>>> + ? ARM_R0_REGNUM >> syscall number
>>>> + ? ARM_R1_REGNUM >> arg1
>>>> + ? ARM_R2_REGNUM >> arg2
>>>> + ? ARM_R3_REGNUM >> arg3
>>>> + ? ARM_R4_REGNUM >> arg4. ?*/
>>>> +
>>>> +static int
>>>> +arm_linux_swi_syscall_record (struct regcache *regcache)
>>>> +{
>>>> + ?int ret;
>>>> + ?LONGEST syscall_native;
>>>> + ?enum gdb_syscall syscall_gdb;
>>>> +
>>>> + ?regcache_raw_read_signed (regcache, ARM_R0_REGNUM, &syscall_native);
>>>> +
>>>> + ?syscall_gdb = arm_canonicalize_syscall (syscall_native);
>>>> +
>>>> + ?if (syscall_gdb < 0)
>>>> + ? ?{
>>>> + ? ? ?printf_unfiltered (_("Process record and replay target doesn't "
>>>> + ? ? ? ? ? ? ? ? ? ? ? ? ? "support syscall number %s\n"),
>>>> + ? ? ? ? ? ? ? ? ? ? ? ?plongest (syscall_native));
>>>> + ? ? ?return -1;
>>>> + ? ?}
>>>> +
>>>> + ?if (syscall_gdb == gdb_sys_sigreturn
>>>> + ? ? ?|| syscall_gdb == gdb_sys_rt_sigreturn)
>>>> + ? {
>>>> + ? ? if (arm_all_but_pc_registers_record (regcache))
>>>> + ? ? ? return -1;
>>>> + ? ? return 0;
>>>> + ? }
>>>> +
>>>> + ?ret = record_linux_system_call (syscall_gdb, regcache,
>>>> + ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ?&arm_linux_record_tdep);
>>>> + ?if (ret)
>>>> + ? ?return ret;
>>>> +
>>>> + ?/* Record the return value of the system call. ?*/
>>>> + ?if (record_arch_list_add_reg (regcache, ARM_R0_REGNUM))
>>>> + ? ?return -1;
>>>> + ?/* Record LR. ?*/
>>>> + ?if (record_arch_list_add_reg (regcache, ARM_LR_REGNUM))
>>>> + ? ?return -1;
>>>> + ?/* Record CPSR. ?*/
>>>> + ?if (record_arch_list_add_reg (regcache, ARM_PS_REGNUM))
>>>> + ? ?return -1;
>>>> +
>>>> + ?return 0;
>>>> +}
>>>> +
>>>> +
>>>> ?static void
>>>> ?arm_linux_init_abi (struct gdbarch_info info,
>>>> ? ? ? ? ? ? ? ? ? ?struct gdbarch *gdbarch)
>>>> @@ -1293,7 +1431,166 @@
>>>> ? tdep->syscall_next_pc = arm_linux_syscall_next_pc;
>>>>
>>>> ? /* Syscall record. ?*/
>>>> - ?tdep->arm_swi_record = NULL;
>>>> + ?tdep->arm_swi_record = arm_linux_swi_syscall_record;
>>>> +
>>>> +
>>>> + ?/* Initialize the arm_linux_record_tdep. ?*/
>>>> + ?/* These values are the size of the type that will be used in a system
>>>> + ? ? call. ?They are obtained from Linux Kernel source. ?*/
>>>> + ?arm_linux_record_tdep.size_pointer
>>>> + ? ?= gdbarch_ptr_bit (gdbarch) / TARGET_CHAR_BIT;
>>>> + ?arm_linux_record_tdep.size__old_kernel_stat = 32;
>>>> + ?arm_linux_record_tdep.size_tms = 16;
>>>> + ?arm_linux_record_tdep.size_loff_t = 8;
>>>> + ?arm_linux_record_tdep.size_flock = 16;
>>>> + ?arm_linux_record_tdep.size_oldold_utsname = 45;
>>>> + ?arm_linux_record_tdep.size_ustat = 20;
>>>> + ?arm_linux_record_tdep.size_old_sigaction = 140;
>>>> + ?arm_linux_record_tdep.size_old_sigset_t = 128;
>>>> + ?arm_linux_record_tdep.size_rlimit = 8;
>>>> + ?arm_linux_record_tdep.size_rusage = 72;
>>>> + ?arm_linux_record_tdep.size_timeval = 8;
>>>> + ?arm_linux_record_tdep.size_timezone = 8;
>>>> + ?arm_linux_record_tdep.size_old_gid_t = 2;
>>>> + ?arm_linux_record_tdep.size_old_uid_t = 2;
>>>> + ?arm_linux_record_tdep.size_fd_set = 128;
>>>> + ?arm_linux_record_tdep.size_dirent = 268;
>>>> + ?arm_linux_record_tdep.size_dirent64 = 276;
>>>> + ?arm_linux_record_tdep.size_statfs = 64;
>>>> + ?arm_linux_record_tdep.size_statfs64 = 84;
>>>> + ?arm_linux_record_tdep.size_sockaddr = 16;
>>>> + ?arm_linux_record_tdep.size_int
>>>> + ? ?= gdbarch_int_bit (gdbarch) / TARGET_CHAR_BIT;
>>>> + ?arm_linux_record_tdep.size_long
>>>> + ? ?= gdbarch_long_bit (gdbarch) / TARGET_CHAR_BIT;
>>>> + ?arm_linux_record_tdep.size_ulong
>>>> + ? ?= gdbarch_long_bit (gdbarch) / TARGET_CHAR_BIT;
>>>> + ?arm_linux_record_tdep.size_msghdr = 28;
>>>> + ?arm_linux_record_tdep.size_itimerval = 16;
>>>> + ?arm_linux_record_tdep.size_stat = 88;
>>>> + ?arm_linux_record_tdep.size_old_utsname = 325;
>>>> + ?arm_linux_record_tdep.size_sysinfo = 64;
>>>> + ?arm_linux_record_tdep.size_msqid_ds = 88;
>>>> + ?arm_linux_record_tdep.size_shmid_ds = 84;
>>>> + ?arm_linux_record_tdep.size_new_utsname = 390;
>>>> + ?arm_linux_record_tdep.size_timex = 128;
>>>> + ?arm_linux_record_tdep.size_mem_dqinfo = 24;
>>>> + ?arm_linux_record_tdep.size_if_dqblk = 68;
>>>> + ?arm_linux_record_tdep.size_fs_quota_stat = 68;
>>>> + ?arm_linux_record_tdep.size_timespec = 8;
>>>> + ?arm_linux_record_tdep.size_pollfd = 8;
>>>> + ?arm_linux_record_tdep.size_NFS_FHSIZE = 32;
>>>> + ?arm_linux_record_tdep.size_knfsd_fh = 132;
>>>> + ?arm_linux_record_tdep.size_TASK_COMM_LEN = 16;
>>>> + ?arm_linux_record_tdep.size_sigaction = 140;
>>>> + ?arm_linux_record_tdep.size_sigset_t = 8;
>>>> + ?arm_linux_record_tdep.size_siginfo_t = 128;
>>>> + ?arm_linux_record_tdep.size_cap_user_data_t = 12;
>>>> + ?arm_linux_record_tdep.size_stack_t = 12;
>>>> + ?arm_linux_record_tdep.size_off_t = arm_linux_record_tdep.size_long;
>>>> + ?arm_linux_record_tdep.size_stat64 = 96;
>>>> + ?arm_linux_record_tdep.size_gid_t = 2;
>>>> + ?arm_linux_record_tdep.size_uid_t = 2;
>>>> + ?arm_linux_record_tdep.size_PAGE_SIZE = 4096;
>>>> + ?arm_linux_record_tdep.size_flock64 = 24;
>>>> + ?arm_linux_record_tdep.size_user_desc = 16;
>>>> + ?arm_linux_record_tdep.size_io_event = 32;
>>>> + ?arm_linux_record_tdep.size_iocb = 64;
>>>> + ?arm_linux_record_tdep.size_epoll_event = 12;
>>>> + ?arm_linux_record_tdep.size_itimerspec
>>>> + ? ?= arm_linux_record_tdep.size_timespec * 2;
>>>> + ?arm_linux_record_tdep.size_mq_attr = 32;
>>>> + ?arm_linux_record_tdep.size_siginfo = 128;
>>>> + ?arm_linux_record_tdep.size_termios = 36;
>>>> + ?arm_linux_record_tdep.size_termios2 = 44;
>>>> + ?arm_linux_record_tdep.size_pid_t = 4;
>>>> + ?arm_linux_record_tdep.size_winsize = 8;
>>>> + ?arm_linux_record_tdep.size_serial_struct = 60;
>>>> + ?arm_linux_record_tdep.size_serial_icounter_struct = 80;
>>>> + ?arm_linux_record_tdep.size_hayes_esp_config = 12;
>>>> + ?arm_linux_record_tdep.size_size_t = 4;
>>>> + ?arm_linux_record_tdep.size_iovec = 8;
>>>> +
>>>> +
>>>> + ?/* These values are the second argument of system call "sys_ioctl".
>>>> + ? ? ?They are obtained from Linux Kernel source. ?*/
>>>> + ? arm_linux_record_tdep.ioctl_TCGETS = 0x5401;
>>>> + ? arm_linux_record_tdep.ioctl_TCSETS = 0x5402;
>>>> + ? arm_linux_record_tdep.ioctl_TCSETSW = 0x5403;
>>>> + ? arm_linux_record_tdep.ioctl_TCSETSF = 0x5404;
>>>> + ? arm_linux_record_tdep.ioctl_TCGETA = 0x5405;
>>>> + ? arm_linux_record_tdep.ioctl_TCSETA = 0x5406;
>>>> + ? arm_linux_record_tdep.ioctl_TCSETAW = 0x5407;
>>>> + ? arm_linux_record_tdep.ioctl_TCSETAF = 0x5408;
>>>> + ? arm_linux_record_tdep.ioctl_TCSBRK = 0x5409;
>>>> + ? arm_linux_record_tdep.ioctl_TCXONC = 0x540A;
>>>> + ? arm_linux_record_tdep.ioctl_TCFLSH = 0x540B;
>>>> + ? arm_linux_record_tdep.ioctl_TIOCEXCL = 0x540C;
>>>> + ? arm_linux_record_tdep.ioctl_TIOCNXCL = 0x540D;
>>>> + ? arm_linux_record_tdep.ioctl_TIOCSCTTY = 0x540E;
>>>> + ? arm_linux_record_tdep.ioctl_TIOCGPGRP = 0x540F;
>>>> + ? arm_linux_record_tdep.ioctl_TIOCSPGRP = 0x5410;
>>>> + ? arm_linux_record_tdep.ioctl_TIOCOUTQ = 0x5411;
>>>> + ? arm_linux_record_tdep.ioctl_TIOCSTI = 0x5412;
>>>> + ? arm_linux_record_tdep.ioctl_TIOCGWINSZ = 0x5413;
>>>> + ? arm_linux_record_tdep.ioctl_TIOCSWINSZ = 0x5414;
>>>> + ? arm_linux_record_tdep.ioctl_TIOCMGET = 0x5415;
>>>> + ? arm_linux_record_tdep.ioctl_TIOCMBIS = 0x5416;
>>>> + ? arm_linux_record_tdep.ioctl_TIOCMBIC = 0x5417;
>>>> + ? arm_linux_record_tdep.ioctl_TIOCMSET = 0x5418;
>>>> + ? arm_linux_record_tdep.ioctl_TIOCGSOFTCAR = 0x5419;
>>>> + ? arm_linux_record_tdep.ioctl_TIOCSSOFTCAR = 0x541A;
>>>> + ? arm_linux_record_tdep.ioctl_FIONREAD = 0x541B;
>>>> + ? arm_linux_record_tdep.ioctl_TIOCINQ = arm_linux_record_tdep.ioctl_FIONREAD;
>>>> + ? arm_linux_record_tdep.ioctl_TIOCLINUX = 0x541C;
>>>> + ? arm_linux_record_tdep.ioctl_TIOCCONS = 0x541D;
>>>> + ? arm_linux_record_tdep.ioctl_TIOCGSERIAL = 0x541E;
>>>> + ? arm_linux_record_tdep.ioctl_TIOCSSERIAL = 0x541F;
>>>> + ? arm_linux_record_tdep.ioctl_TIOCPKT = 0x5420;
>>>> + ? arm_linux_record_tdep.ioctl_FIONBIO = 0x5421;
>>>> + ? arm_linux_record_tdep.ioctl_TIOCNOTTY = 0x5422;
>>>> + ? arm_linux_record_tdep.ioctl_TIOCSETD = 0x5423;
>>>> + ? arm_linux_record_tdep.ioctl_TIOCGETD = 0x5424;
>>>> + ? arm_linux_record_tdep.ioctl_TCSBRKP = 0x5425;
>>>> + ? arm_linux_record_tdep.ioctl_TIOCTTYGSTRUCT = 0x5426;
>>>> + ? arm_linux_record_tdep.ioctl_TIOCSBRK = 0x5427;
>>>> + ? arm_linux_record_tdep.ioctl_TIOCCBRK = 0x5428;
>>>> + ? arm_linux_record_tdep.ioctl_TIOCGSID = 0x5429;
>>>> + ? arm_linux_record_tdep.ioctl_TCGETS2 = 0x802c542a;
>>>> + ? arm_linux_record_tdep.ioctl_TCSETS2 = 0x402c542b;
>>>> + ? arm_linux_record_tdep.ioctl_TCSETSW2 = 0x402c542c;
>>>> + ? arm_linux_record_tdep.ioctl_TCSETSF2 = 0x402c542d;
>>>> + ? arm_linux_record_tdep.ioctl_TIOCGPTN = 0x80045430;
>>>> + ? arm_linux_record_tdep.ioctl_TIOCSPTLCK = 0x40045431;
>>>> + ? arm_linux_record_tdep.ioctl_FIONCLEX = 0x5450;
>>>> + ? arm_linux_record_tdep.ioctl_FIOCLEX = 0x5451;
>>>> + ? arm_linux_record_tdep.ioctl_FIOASYNC = 0x5452;
>>>> + ? arm_linux_record_tdep.ioctl_TIOCSERCONFIG = 0x5453;
>>>> + ? arm_linux_record_tdep.ioctl_TIOCSERGWILD = 0x5454;
>>>> + ? arm_linux_record_tdep.ioctl_TIOCSERSWILD = 0x5455;
>>>> + ? arm_linux_record_tdep.ioctl_TIOCGLCKTRMIOS = 0x5456;
>>>> + ? arm_linux_record_tdep.ioctl_TIOCSLCKTRMIOS = 0x5457;
>>>> + ? arm_linux_record_tdep.ioctl_TIOCSERGSTRUCT = 0x5458;
>>>> + ? arm_linux_record_tdep.ioctl_TIOCSERGETLSR = 0x5459;
>>>> + ? arm_linux_record_tdep.ioctl_TIOCSERGETMULTI = 0x545A;
>>>> + ? arm_linux_record_tdep.ioctl_TIOCSERSETMULTI = 0x545B;
>>>> + ? arm_linux_record_tdep.ioctl_TIOCMIWAIT = 0x545C;
>>>> + ? arm_linux_record_tdep.ioctl_TIOCGICOUNT = 0x545D;
>>>> + ? arm_linux_record_tdep.ioctl_TIOCGHAYESESP = 0x545E;
>>>> + ? arm_linux_record_tdep.ioctl_TIOCSHAYESESP = 0x545F;
>>>> + ? arm_linux_record_tdep.ioctl_FIOQSIZE = 0x5460;
>>>> +
>>>> + ? /* These values are the second argument of system call "sys_fcntl"
>>>> + ? ? ?and "sys_fcntl64". ?They are obtained from Linux Kernel source. ?*/
>>>> + ? arm_linux_record_tdep.fcntl_F_GETLK = 5;
>>>> + ? arm_linux_record_tdep.fcntl_F_GETLK64 = 12;
>>>> + ? arm_linux_record_tdep.fcntl_F_SETLK64 = 13;
>>>> + ? arm_linux_record_tdep.fcntl_F_SETLKW64 = 14;
>>>> +
>>>> + ? arm_linux_record_tdep.arg1 = ARM_R1_REGNUM;
>>>> + ? arm_linux_record_tdep.arg2 = ARM_R2_REGNUM;
>>>> + ? arm_linux_record_tdep.arg3 = ARM_R3_REGNUM;
>>>> + ? arm_linux_record_tdep.arg4 = ARM_R4_REGNUM;
>>>> ?}
>>>>
>>>> ?/* Provide a prototype to silence -Wmissing-prototypes. ?*/
>>>> diff -urN orig/arm-tdep.c new/arm-tdep.c
>>>> --- orig/arm-tdep.c ? ? 2012-05-19 02:32:48.000000000 +0530
>>>> +++ new/arm-tdep.c ? ? ?2012-06-07 22:36:33.376647300 +0530
>>>> @@ -11809,7 +11809,7 @@
>>>> ?{
>>>> ? struct gdbarch_tdep *tdep = gdbarch_tdep (arm_insn_r->gdbarch);
>>>> ? struct regcache *reg_cache = arm_insn_r->regcache;
>>>> - ?uint32_t ret = 0; /* function return value: -1:record failure ;
>>>> 0:success ?*/
>>>> + ?uint32_t ret = -1; /* function return value: -1:record failure ;
>>>> 0:success ?*/
>>>>
>>>> ? /* Handle SWI insn; system call would be handled over here. ?*/
>>>>
>>>> @@ -11828,6 +11828,7 @@
>>>> ? ? ? }
>>>> ? }
>>>>
>>>> + ?if (ret)
>>>> ? printf_unfiltered (_("Process record does not support instruction "
>>>> ? ? ? ? ? ? ? ? ? ? ? ? "0x%0x at address %s.\n"),arm_insn_r->arm_insn,
>>>> ? ? ? ? ? ? ? ? ? ? ? ? paddress (arm_insn_r->gdbarch, arm_insn_r->this_addr));