/* Target-dependent code for GNU/Linux i386.
- Copyright (C) 2000, 2001, 2002, 2003, 2004, 2005, 2007, 2008, 2009
- Free Software Foundation, Inc.
+ Copyright (C) 2000-2020 Free Software Foundation, Inc.
This file is part of GDB.
along with this program. If not, see <http://www.gnu.org/licenses/>. */
#include "defs.h"
+#include "displaced-stepping.h"
#include "gdbcore.h"
#include "frame.h"
#include "value.h"
#include "regcache.h"
+#include "regset.h"
#include "inferior.h"
#include "osabi.h"
#include "reggroups.h"
-#include "dwarf2-frame.h"
-#include "gdb_string.h"
-
+#include "dwarf2/frame.h"
#include "i386-tdep.h"
#include "i386-linux-tdep.h"
#include "linux-tdep.h"
+#include "utils.h"
#include "glibc-tdep.h"
#include "solib-svr4.h"
#include "symtab.h"
#include "arch-utils.h"
-#include "regset.h"
-
-#include "record.h"
-#include "linux-record.h"
-#include <stdint.h>
+#include "xml-syscall.h"
+#include "infrun.h"
-/* Supported register note sections. */
-static struct core_regset_section i386_linux_regset_sections[] =
-{
- { ".reg", 144 },
- { ".reg2", 108 },
- { ".reg-xfp", 512 },
- { NULL, 0 }
-};
+#include "i387-tdep.h"
+#include "gdbsupport/x86-xstate.h"
-/* Return the name of register REG. */
+/* The syscall's XML filename for i386. */
+#define XML_SYSCALL_FILENAME_I386 "syscalls/i386-linux.xml"
-static const char *
-i386_linux_register_name (struct gdbarch *gdbarch, int reg)
-{
- /* Deal with the extra "orig_eax" pseudo register. */
- if (reg == I386_LINUX_ORIG_EAX_REGNUM)
- return "orig_eax";
+#include "record-full.h"
+#include "linux-record.h"
- return i386_register_name (gdbarch, reg);
-}
+#include "arch/i386.h"
+#include "target-descriptions.h"
/* Return non-zero, when the register is in the corresponding register
group. Put the LINUX_ORIG_EAX register in the system group. */
i386_linux_sigtramp_p (struct frame_info *this_frame)
{
CORE_ADDR pc = get_frame_pc (this_frame);
- char *name;
+ const char *name;
find_pc_partial_function (pc, &name, NULL, NULL);
struct frame_info *this_frame)
{
CORE_ADDR pc = get_frame_pc (this_frame);
- char *name;
+ const char *name;
find_pc_partial_function (pc, &name, NULL, NULL);
static CORE_ADDR
i386_linux_sigcontext_addr (struct frame_info *this_frame)
{
+ struct gdbarch *gdbarch = get_frame_arch (this_frame);
+ enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
CORE_ADDR pc;
CORE_ADDR sp;
gdb_byte buf[4];
get_frame_register (this_frame, I386_ESP_REGNUM, buf);
- sp = extract_unsigned_integer (buf, 4);
+ sp = extract_unsigned_integer (buf, 4, byte_order);
pc = i386_linux_sigtramp_start (this_frame);
if (pc)
pointer to the user context is passed as the third argument
to the signal handler. */
read_memory (sp + 8, buf, 4);
- ucontext_addr = extract_unsigned_integer (buf, 4);
+ ucontext_addr = extract_unsigned_integer (buf, 4, byte_order);
return ucontext_addr + I386_LINUX_UCONTEXT_SIGCONTEXT_OFFSET;
}
regcache_cooked_write_unsigned (regcache, I386_LINUX_ORIG_EAX_REGNUM, -1);
}
+/* Record all registers but IP register for process-record. */
+
+static int
+i386_all_but_ip_registers_record (struct regcache *regcache)
+{
+ if (record_full_arch_list_add_reg (regcache, I386_EAX_REGNUM))
+ return -1;
+ if (record_full_arch_list_add_reg (regcache, I386_ECX_REGNUM))
+ return -1;
+ if (record_full_arch_list_add_reg (regcache, I386_EDX_REGNUM))
+ return -1;
+ if (record_full_arch_list_add_reg (regcache, I386_EBX_REGNUM))
+ return -1;
+ if (record_full_arch_list_add_reg (regcache, I386_ESP_REGNUM))
+ return -1;
+ if (record_full_arch_list_add_reg (regcache, I386_EBP_REGNUM))
+ return -1;
+ if (record_full_arch_list_add_reg (regcache, I386_ESI_REGNUM))
+ return -1;
+ if (record_full_arch_list_add_reg (regcache, I386_EDI_REGNUM))
+ return -1;
+ if (record_full_arch_list_add_reg (regcache, I386_EFLAGS_REGNUM))
+ return -1;
+
+ return 0;
+}
+
+/* i386_canonicalize_syscall maps from the native i386 Linux set
+ of syscall ids into a canonical set of syscall ids used by
+ process record (a mostly trivial mapping, since the canonical
+ set was originally taken from the i386 set). */
+
+static enum gdb_syscall
+i386_canonicalize_syscall (int syscall)
+{
+ enum { i386_syscall_max = 499 };
+
+ if (syscall <= i386_syscall_max)
+ return (enum gdb_syscall) syscall;
+ else
+ return gdb_sys_no_syscall;
+}
+
+/* Value of the sigcode in case of a boundary fault. */
+
+#define SIG_CODE_BONDARY_FAULT 3
+
+/* i386 GNU/Linux implementation of the handle_segmentation_fault
+ gdbarch hook. Displays information related to MPX bound
+ violations. */
+void
+i386_linux_handle_segmentation_fault (struct gdbarch *gdbarch,
+ struct ui_out *uiout)
+{
+ /* -Wmaybe-uninitialized */
+ CORE_ADDR lower_bound = 0, upper_bound = 0, access = 0;
+ int is_upper;
+ long sig_code = 0;
+
+ if (!i386_mpx_enabled ())
+ return;
+
+ try
+ {
+ /* Sigcode evaluates if the actual segfault is a boundary violation. */
+ sig_code = parse_and_eval_long ("$_siginfo.si_code\n");
+
+ lower_bound
+ = parse_and_eval_long ("$_siginfo._sifields._sigfault._addr_bnd._lower");
+ upper_bound
+ = parse_and_eval_long ("$_siginfo._sifields._sigfault._addr_bnd._upper");
+ access
+ = parse_and_eval_long ("$_siginfo._sifields._sigfault.si_addr");
+ }
+ catch (const gdb_exception &exception)
+ {
+ return;
+ }
+
+ /* If this is not a boundary violation just return. */
+ if (sig_code != SIG_CODE_BONDARY_FAULT)
+ return;
+
+ is_upper = (access > upper_bound ? 1 : 0);
+
+ uiout->text ("\n");
+ if (is_upper)
+ uiout->field_string ("sigcode-meaning", _("Upper bound violation"));
+ else
+ uiout->field_string ("sigcode-meaning", _("Lower bound violation"));
+
+ uiout->text (_(" while accessing address "));
+ uiout->field_core_addr ("bound-access", gdbarch, access);
+
+ uiout->text (_("\nBounds: [lower = "));
+ uiout->field_core_addr ("lower-bound", gdbarch, lower_bound);
+
+ uiout->text (_(", upper = "));
+ uiout->field_core_addr ("upper-bound", gdbarch, upper_bound);
+
+ uiout->text (_("]"));
+}
+
/* Parse the arguments of current system call instruction and record
the values of the registers and memory that will be changed into
"record_arch_list". This instruction is "int 0x80" (Linux
static struct linux_record_tdep i386_linux_record_tdep;
static int
-i386_linux_intx80_sysenter_record (struct regcache *regcache)
+i386_linux_intx80_sysenter_syscall_record (struct regcache *regcache)
{
int ret;
- uint32_t tmpu32;
+ LONGEST syscall_native;
+ enum gdb_syscall syscall_gdb;
+
+ regcache_raw_read_signed (regcache, I386_EAX_REGNUM, &syscall_native);
+
+ syscall_gdb = i386_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;
+ }
- regcache_raw_read (regcache, I386_EAX_REGNUM, (gdb_byte *)&tmpu32);
+ if (syscall_gdb == gdb_sys_sigreturn
+ || syscall_gdb == gdb_sys_rt_sigreturn)
+ {
+ if (i386_all_but_ip_registers_record (regcache))
+ return -1;
+ return 0;
+ }
- ret = record_linux_system_call (tmpu32, regcache,
+ ret = record_linux_system_call (syscall_gdb, regcache,
&i386_linux_record_tdep);
if (ret)
return ret;
/* Record the return value of the system call. */
- if (record_arch_list_add_reg (regcache, I386_EAX_REGNUM))
+ if (record_full_arch_list_add_reg (regcache, I386_EAX_REGNUM))
+ return -1;
+
+ return 0;
+}
+
+#define I386_LINUX_xstate 270
+#define I386_LINUX_frame_size 732
+
+static int
+i386_linux_record_signal (struct gdbarch *gdbarch,
+ struct regcache *regcache,
+ enum gdb_signal signal)
+{
+ ULONGEST esp;
+
+ if (i386_all_but_ip_registers_record (regcache))
+ return -1;
+
+ if (record_full_arch_list_add_reg (regcache, I386_EIP_REGNUM))
+ return -1;
+
+ /* Record the change in the stack. */
+ regcache_raw_read_unsigned (regcache, I386_ESP_REGNUM, &esp);
+ /* This is for xstate.
+ sp -= sizeof (struct _fpstate); */
+ esp -= I386_LINUX_xstate;
+ /* This is for frame_size.
+ sp -= sizeof (struct rt_sigframe); */
+ esp -= I386_LINUX_frame_size;
+ if (record_full_arch_list_add_mem (esp,
+ I386_LINUX_xstate + I386_LINUX_frame_size))
+ return -1;
+
+ if (record_full_arch_list_add_end ())
return -1;
return 0;
}
\f
+/* Core of the implementation for gdbarch get_syscall_number. Get pending
+ syscall number from REGCACHE. If there is no pending syscall -1 will be
+ returned. Pending syscall means ptrace has stepped into the syscall but
+ another ptrace call will step out. PC is right after the int $0x80
+ / syscall / sysenter instruction in both cases, PC does not change during
+ the second ptrace step. */
+
+static LONGEST
+i386_linux_get_syscall_number_from_regcache (struct regcache *regcache)
+{
+ struct gdbarch *gdbarch = regcache->arch ();
+ enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
+ /* The content of a register. */
+ gdb_byte buf[4];
+ /* The result. */
+ LONGEST ret;
+
+ /* Getting the system call number from the register.
+ When dealing with x86 architecture, this information
+ is stored at %eax register. */
+ regcache->cooked_read (I386_LINUX_ORIG_EAX_REGNUM, buf);
+
+ ret = extract_signed_integer (buf, 4, byte_order);
+
+ return ret;
+}
+
+/* Wrapper for i386_linux_get_syscall_number_from_regcache to make it
+ compatible with gdbarch get_syscall_number method prototype. */
+
+static LONGEST
+i386_linux_get_syscall_number (struct gdbarch *gdbarch,
+ thread_info *thread)
+{
+ struct regcache *regcache = get_thread_regcache (thread);
+
+ return i386_linux_get_syscall_number_from_regcache (regcache);
+}
+
/* The register sets used in GNU/Linux ELF core-dumps are identical to
the register sets in `struct user' that are used for a.out
core-dumps. These are also used by ptrace(2). The corresponding
format and GDB's register cache layout. */
/* From <sys/reg.h>. */
-static int i386_linux_gregset_reg_offset[] =
+int i386_linux_gregset_reg_offset[] =
{
6 * 4, /* %eax */
1 * 4, /* %ecx */
-1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1,
-1,
- 11 * 4 /* "orig_eax" */
+ -1, -1, -1, -1, -1, -1, -1, -1,
+ -1, -1, -1, -1, /* MPX registers BND0 ... BND3. */
+ -1, -1, /* MPX registers BNDCFGU, BNDSTATUS. */
+ -1, -1, -1, -1, -1, -1, -1, -1, /* k0 ... k7 (AVX512) */
+ -1, -1, -1, -1, -1, -1, -1, -1, /* zmm0 ... zmm7 (AVX512) */
+ -1, /* PKRU register */
+ 11 * 4, /* "orig_eax" */
};
/* Mapping between the general-purpose registers in `struct
0 * 4 /* %gs */
};
-/* These macros are the size of the type that will be used in a system
- call. The values of these macros were obtained from Linux Kernel
- source. */
-#define I386_LINUX_RECORD_SIZE__old_kernel_stat 32
-#define I386_LINUX_RECORD_SIZE_tms 16
-#define I386_LINUX_RECORD_SIZE_loff_t 8
-#define I386_LINUX_RECORD_SIZE_flock 16
-#define I386_LINUX_RECORD_SIZE_oldold_utsname 45
-#define I386_LINUX_RECORD_SIZE_ustat 20
-#define I386_LINUX_RECORD_SIZE_old_sigaction 140
-#define I386_LINUX_RECORD_SIZE_old_sigset_t 128
-#define I386_LINUX_RECORD_SIZE_rlimit 8
-#define I386_LINUX_RECORD_SIZE_rusage 72
-#define I386_LINUX_RECORD_SIZE_timeval 8
-#define I386_LINUX_RECORD_SIZE_timezone 8
-#define I386_LINUX_RECORD_SIZE_old_gid_t 2
-#define I386_LINUX_RECORD_SIZE_old_uid_t 2
-#define I386_LINUX_RECORD_SIZE_fd_set 128
-#define I386_LINUX_RECORD_SIZE_dirent 268
-#define I386_LINUX_RECORD_SIZE_dirent64 276
-#define I386_LINUX_RECORD_SIZE_statfs 64
-#define I386_LINUX_RECORD_SIZE_statfs64 84
-#define I386_LINUX_RECORD_SIZE_sockaddr 16
-#define I386_LINUX_RECORD_SIZE_int 4
-#define I386_LINUX_RECORD_SIZE_long 4
-#define I386_LINUX_RECORD_SIZE_ulong 4
-#define I386_LINUX_RECORD_SIZE_msghdr 28
-#define I386_LINUX_RECORD_SIZE_itimerval 16
-#define I386_LINUX_RECORD_SIZE_stat 88
-#define I386_LINUX_RECORD_SIZE_old_utsname 325
-#define I386_LINUX_RECORD_SIZE_sysinfo 64
-#define I386_LINUX_RECORD_SIZE_msqid_ds 88
-#define I386_LINUX_RECORD_SIZE_shmid_ds 84
-#define I386_LINUX_RECORD_SIZE_new_utsname 390
-#define I386_LINUX_RECORD_SIZE_timex 128
-#define I386_LINUX_RECORD_SIZE_mem_dqinfo 24
-#define I386_LINUX_RECORD_SIZE_if_dqblk 68
-#define I386_LINUX_RECORD_SIZE_fs_quota_stat 68
-#define I386_LINUX_RECORD_SIZE_timespec 8
-#define I386_LINUX_RECORD_SIZE_pollfd 8
-#define I386_LINUX_RECORD_SIZE_NFS_FHSIZE 32
-#define I386_LINUX_RECORD_SIZE_knfsd_fh 132
-#define I386_LINUX_RECORD_SIZE_TASK_COMM_LEN 16
-#define I386_LINUX_RECORD_SIZE_sigaction 140
-#define I386_LINUX_RECORD_SIZE_sigset_t 8
-#define I386_LINUX_RECORD_SIZE_siginfo_t 128
-#define I386_LINUX_RECORD_SIZE_cap_user_data_t 12
-#define I386_LINUX_RECORD_SIZE_stack_t 12
-#define I386_LINUX_RECORD_SIZE_off_t I386_LINUX_RECORD_SIZE_long
-#define I386_LINUX_RECORD_SIZE_stat64 96
-#define I386_LINUX_RECORD_SIZE_gid_t 2
-#define I386_LINUX_RECORD_SIZE_uid_t 2
-#define I386_LINUX_RECORD_SIZE_PAGE_SIZE 4096
-#define I386_LINUX_RECORD_SIZE_flock64 24
-#define I386_LINUX_RECORD_SIZE_user_desc 16
-#define I386_LINUX_RECORD_SIZE_io_event 32
-#define I386_LINUX_RECORD_SIZE_iocb 64
-#define I386_LINUX_RECORD_SIZE_epoll_event 12
-#define I386_LINUX_RECORD_SIZE_itimerspec (I386_LINUX_RECORD_SIZE_timespec * 2)
-#define I386_LINUX_RECORD_SIZE_mq_attr 32
-#define I386_LINUX_RECORD_SIZE_siginfo 128
-#define I386_LINUX_RECORD_SIZE_termios 36
-#define I386_LINUX_RECORD_SIZE_termios2 44
-#define I386_LINUX_RECORD_SIZE_pid_t 4
-#define I386_LINUX_RECORD_SIZE_winsize 8
-#define I386_LINUX_RECORD_SIZE_char 8
-#define I386_LINUX_RECORD_SIZE_serial_struct 60
-#define I386_LINUX_RECORD_SIZE_serial_icounter_struct 80
-#define I386_LINUX_RECORD_SIZE_hayes_esp_config 12
-
-/* These macros are the values of the second argument of system call
- "sys_ioctl". The values of these macros were obtained from Linux
- Kernel source. */
-#define I386_LINUX_RECORD_IOCTL_TCGETS 0x5401
-#define I386_LINUX_RECORD_IOCTL_TCSETS 0x5402
-#define I386_LINUX_RECORD_IOCTL_TCSETSW 0x5403
-#define I386_LINUX_RECORD_IOCTL_TCSETSF 0x5404
-#define I386_LINUX_RECORD_IOCTL_TCGETA 0x5405
-#define I386_LINUX_RECORD_IOCTL_TCSETA 0x5406
-#define I386_LINUX_RECORD_IOCTL_TCSETAW 0x5407
-#define I386_LINUX_RECORD_IOCTL_TCSETAF 0x5408
-#define I386_LINUX_RECORD_IOCTL_TCSBRK 0x5409
-#define I386_LINUX_RECORD_IOCTL_TCXONC 0x540A
-#define I386_LINUX_RECORD_IOCTL_TCFLSH 0x540B
-#define I386_LINUX_RECORD_IOCTL_TIOCEXCL 0x540C
-#define I386_LINUX_RECORD_IOCTL_TIOCNXCL 0x540D
-#define I386_LINUX_RECORD_IOCTL_TIOCSCTTY 0x540E
-#define I386_LINUX_RECORD_IOCTL_TIOCGPGRP 0x540F
-#define I386_LINUX_RECORD_IOCTL_TIOCSPGRP 0x5410
-#define I386_LINUX_RECORD_IOCTL_TIOCOUTQ 0x5411
-#define I386_LINUX_RECORD_IOCTL_TIOCSTI 0x5412
-#define I386_LINUX_RECORD_IOCTL_TIOCGWINSZ 0x5413
-#define I386_LINUX_RECORD_IOCTL_TIOCSWINSZ 0x5414
-#define I386_LINUX_RECORD_IOCTL_TIOCMGET 0x5415
-#define I386_LINUX_RECORD_IOCTL_TIOCMBIS 0x5416
-#define I386_LINUX_RECORD_IOCTL_TIOCMBIC 0x5417
-#define I386_LINUX_RECORD_IOCTL_TIOCMSET 0x5418
-#define I386_LINUX_RECORD_IOCTL_TIOCGSOFTCAR 0x5419
-#define I386_LINUX_RECORD_IOCTL_TIOCSSOFTCAR 0x541A
-#define I386_LINUX_RECORD_IOCTL_FIONREAD 0x541B
-#define I386_LINUX_RECORD_IOCTL_TIOCINQ I386_LINUX_RECORD_IOCTL_FIONREAD
-#define I386_LINUX_RECORD_IOCTL_TIOCLINUX 0x541C
-#define I386_LINUX_RECORD_IOCTL_TIOCCONS 0x541D
-#define I386_LINUX_RECORD_IOCTL_TIOCGSERIAL 0x541E
-#define I386_LINUX_RECORD_IOCTL_TIOCSSERIAL 0x541F
-#define I386_LINUX_RECORD_IOCTL_TIOCPKT 0x5420
-#define I386_LINUX_RECORD_IOCTL_FIONBIO 0x5421
-#define I386_LINUX_RECORD_IOCTL_TIOCNOTTY 0x5422
-#define I386_LINUX_RECORD_IOCTL_TIOCSETD 0x5423
-#define I386_LINUX_RECORD_IOCTL_TIOCGETD 0x5424
-#define I386_LINUX_RECORD_IOCTL_TCSBRKP 0x5425
-#define I386_LINUX_RECORD_IOCTL_TIOCTTYGSTRUCT 0x5426
-#define I386_LINUX_RECORD_IOCTL_TIOCSBRK 0x5427
-#define I386_LINUX_RECORD_IOCTL_TIOCCBRK 0x5428
-#define I386_LINUX_RECORD_IOCTL_TIOCGSID 0x5429
-#define I386_LINUX_RECORD_IOCTL_TCGETS2 0x802c542a
-#define I386_LINUX_RECORD_IOCTL_TCSETS2 0x402c542b
-#define I386_LINUX_RECORD_IOCTL_TCSETSW2 0x402c542c
-#define I386_LINUX_RECORD_IOCTL_TCSETSF2 0x402c542d
-#define I386_LINUX_RECORD_IOCTL_TIOCGPTN 0x80045430
-#define I386_LINUX_RECORD_IOCTL_TIOCSPTLCK 0x40045431
-#define I386_LINUX_RECORD_IOCTL_FIONCLEX 0x5450
-#define I386_LINUX_RECORD_IOCTL_FIOCLEX 0x5451
-#define I386_LINUX_RECORD_IOCTL_FIOASYNC 0x5452
-#define I386_LINUX_RECORD_IOCTL_TIOCSERCONFIG 0x5453
-#define I386_LINUX_RECORD_IOCTL_TIOCSERGWILD 0x5454
-#define I386_LINUX_RECORD_IOCTL_TIOCSERSWILD 0x5455
-#define I386_LINUX_RECORD_IOCTL_TIOCGLCKTRMIOS 0x5456
-#define I386_LINUX_RECORD_IOCTL_TIOCSLCKTRMIOS 0x5457
-#define I386_LINUX_RECORD_IOCTL_TIOCSERGSTRUCT 0x5458
-#define I386_LINUX_RECORD_IOCTL_TIOCSERGETLSR 0x5459
-#define I386_LINUX_RECORD_IOCTL_TIOCSERGETMULTI 0x545A
-#define I386_LINUX_RECORD_IOCTL_TIOCSERSETMULTI 0x545B
-#define I386_LINUX_RECORD_IOCTL_TIOCMIWAIT 0x545C
-#define I386_LINUX_RECORD_IOCTL_TIOCGICOUNT 0x545D
-#define I386_LINUX_RECORD_IOCTL_TIOCGHAYESESP 0x545E
-#define I386_LINUX_RECORD_IOCTL_TIOCSHAYESESP 0x545F
-#define I386_LINUX_RECORD_IOCTL_FIOQSIZE 0x5460
+/* Get XSAVE extended state xcr0 from core dump. */
+
+uint64_t
+i386_linux_core_read_xcr0 (bfd *abfd)
+{
+ asection *xstate = bfd_get_section_by_name (abfd, ".reg-xstate");
+ uint64_t xcr0;
+
+ if (xstate)
+ {
+ size_t size = bfd_section_size (xstate);
+
+ /* Check extended state size. */
+ if (size < X86_XSTATE_AVX_SIZE)
+ xcr0 = X86_XSTATE_SSE_MASK;
+ else
+ {
+ char contents[8];
+
+ if (! bfd_get_section_contents (abfd, xstate, contents,
+ I386_LINUX_XSAVE_XCR0_OFFSET,
+ 8))
+ {
+ warning (_("Couldn't read `xcr0' bytes from "
+ "`.reg-xstate' section in core file."));
+ return 0;
+ }
+
+ xcr0 = bfd_get_64 (abfd, contents);
+ }
+ }
+ else
+ xcr0 = 0;
+
+ return xcr0;
+}
+
+/* See i386-linux-tdep.h. */
+
+const struct target_desc *
+i386_linux_read_description (uint64_t xcr0)
+{
+ if (xcr0 == 0)
+ return NULL;
+
+ static struct target_desc *i386_linux_tdescs \
+ [2/*X87*/][2/*SSE*/][2/*AVX*/][2/*MPX*/][2/*AVX512*/][2/*PKRU*/] = {};
+ struct target_desc **tdesc;
+
+ tdesc = &i386_linux_tdescs[(xcr0 & X86_XSTATE_X87) ? 1 : 0]
+ [(xcr0 & X86_XSTATE_SSE) ? 1 : 0]
+ [(xcr0 & X86_XSTATE_AVX) ? 1 : 0]
+ [(xcr0 & X86_XSTATE_MPX) ? 1 : 0]
+ [(xcr0 & X86_XSTATE_AVX512) ? 1 : 0]
+ [(xcr0 & X86_XSTATE_PKRU) ? 1 : 0];
+
+ if (*tdesc == NULL)
+ *tdesc = i386_create_target_description (xcr0, true, false);
+
+ return *tdesc;
+}
+
+/* Get Linux/x86 target description from core dump. */
+
+static const struct target_desc *
+i386_linux_core_read_description (struct gdbarch *gdbarch,
+ struct target_ops *target,
+ bfd *abfd)
+{
+ /* Linux/i386. */
+ uint64_t xcr0 = i386_linux_core_read_xcr0 (abfd);
+ const struct target_desc *tdesc = i386_linux_read_description (xcr0);
+
+ if (tdesc != NULL)
+ return tdesc;
+
+ if (bfd_get_section_by_name (abfd, ".reg-xfp") != NULL)
+ return i386_linux_read_description (X86_XSTATE_SSE_MASK);
+ else
+ return i386_linux_read_description (X86_XSTATE_X87_MASK);
+}
+
+/* Similar to i386_supply_fpregset, but use XSAVE extended state. */
+
+static void
+i386_linux_supply_xstateregset (const struct regset *regset,
+ struct regcache *regcache, int regnum,
+ const void *xstateregs, size_t len)
+{
+ i387_supply_xsave (regcache, regnum, xstateregs);
+}
+
+struct type *
+x86_linux_get_siginfo_type (struct gdbarch *gdbarch)
+{
+ return linux_get_siginfo_type_with_fields (gdbarch, LINUX_SIGINFO_FIELD_ADDR_BND);
+}
+
+/* Similar to i386_collect_fpregset, but use XSAVE extended state. */
+
+static void
+i386_linux_collect_xstateregset (const struct regset *regset,
+ const struct regcache *regcache,
+ int regnum, void *xstateregs, size_t len)
+{
+ i387_collect_xsave (regcache, regnum, xstateregs, 1);
+}
+
+/* Register set definitions. */
+
+static const struct regset i386_linux_xstateregset =
+ {
+ NULL,
+ i386_linux_supply_xstateregset,
+ i386_linux_collect_xstateregset
+ };
+
+/* Iterate over core file register note sections. */
+
+static void
+i386_linux_iterate_over_regset_sections (struct gdbarch *gdbarch,
+ iterate_over_regset_sections_cb *cb,
+ void *cb_data,
+ const struct regcache *regcache)
+{
+ struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
+
+ cb (".reg", 68, 68, &i386_gregset, NULL, cb_data);
+
+ if (tdep->xcr0 & X86_XSTATE_AVX)
+ cb (".reg-xstate", X86_XSTATE_SIZE (tdep->xcr0),
+ X86_XSTATE_SIZE (tdep->xcr0), &i386_linux_xstateregset,
+ "XSAVE extended state", cb_data);
+ else if (tdep->xcr0 & X86_XSTATE_SSE)
+ cb (".reg-xfp", 512, 512, &i386_fpregset, "extended floating-point",
+ cb_data);
+ else
+ cb (".reg2", 108, 108, &i386_fpregset, NULL, cb_data);
+}
+
+/* Linux kernel shows PC value after the 'int $0x80' instruction even if
+ inferior is still inside the syscall. On next PTRACE_SINGLESTEP it will
+ finish the syscall but PC will not change.
+
+ Some vDSOs contain 'int $0x80; ret' and during stepping out of the syscall
+ i386_displaced_step_fixup would keep PC at the displaced pad location.
+ As PC is pointing to the 'ret' instruction before the step
+ i386_displaced_step_fixup would expect inferior has just executed that 'ret'
+ and PC should not be adjusted. In reality it finished syscall instead and
+ PC should get relocated back to its vDSO address. Hide the 'ret'
+ instruction by 'nop' so that i386_displaced_step_fixup is not confused.
+
+ It is not fully correct as the bytes in struct displaced_step_copy_insn_closure will
+ not match the inferior code. But we would need some new flag in
+ displaced_step_copy_insn_closure otherwise to keep the state that syscall is finishing
+ for the later i386_displaced_step_fixup execution as the syscall execution
+ is already no longer detectable there. The new flag field would mean
+ i386-linux-tdep.c needs to wrap all the displacement methods of i386-tdep.c
+ which does not seem worth it. The same effect is achieved by patching that
+ 'nop' instruction there instead. */
+
+static displaced_step_copy_insn_closure_up
+i386_linux_displaced_step_copy_insn (struct gdbarch *gdbarch,
+ CORE_ADDR from, CORE_ADDR to,
+ struct regcache *regs)
+{
+ displaced_step_copy_insn_closure_up closure_
+ = i386_displaced_step_copy_insn (gdbarch, from, to, regs);
+
+ if (i386_linux_get_syscall_number_from_regcache (regs) != -1)
+ {
+ /* The closure returned by i386_displaced_step_copy_insn is simply a
+ buffer with a copy of the instruction. */
+ i386_displaced_step_copy_insn_closure *closure
+ = (i386_displaced_step_copy_insn_closure *) closure_.get ();
+
+ /* Fake nop. */
+ closure->buf[0] = 0x90;
+ }
+
+ return closure_;
+}
+
+static displaced_step_prepare_status
+i386_displaced_step_prepare (gdbarch *arch, thread_info *thread)
+{
+ gdb_assert (false);
+ return DISPLACED_STEP_PREPARE_STATUS_OK;
+}
+
+static displaced_step_finish_status
+i386_displaced_step_finish (gdbarch *arch, thread_info *thread, gdb_signal sig)
+{
+ gdb_assert (false);
+ return DISPLACED_STEP_FINISH_STATUS_OK;
+}
static void
i386_linux_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch)
{
struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
+ const struct target_desc *tdesc = info.target_desc;
+ struct tdesc_arch_data *tdesc_data = info.tdesc_data;
+ const struct tdesc_feature *feature;
+ int valid_p;
+
+ gdb_assert (tdesc_data);
+
+ linux_init_abi (info, gdbarch);
/* GNU/Linux uses ELF. */
i386_elf_init_abi (info, gdbarch);
- /* Since we have the extra "orig_eax" register on GNU/Linux, we have
- to adjust a few things. */
+ /* Reserve a number for orig_eax. */
+ set_gdbarch_num_regs (gdbarch, I386_LINUX_NUM_REGS);
+
+ if (! tdesc_has_registers (tdesc))
+ tdesc = i386_linux_read_description (X86_XSTATE_SSE_MASK);
+ tdep->tdesc = tdesc;
+
+ feature = tdesc_find_feature (tdesc, "org.gnu.gdb.i386.linux");
+ if (feature == NULL)
+ return;
+ valid_p = tdesc_numbered_register (feature, tdesc_data,
+ I386_LINUX_ORIG_EAX_REGNUM,
+ "orig_eax");
+ if (!valid_p)
+ return;
+
+ /* Add the %orig_eax register used for syscall restarting. */
set_gdbarch_write_pc (gdbarch, i386_linux_write_pc);
- set_gdbarch_num_regs (gdbarch, I386_LINUX_NUM_REGS);
- set_gdbarch_register_name (gdbarch, i386_linux_register_name);
- set_gdbarch_register_reggroup_p (gdbarch, i386_linux_register_reggroup_p);
+
+ tdep->register_reggroup_p = i386_linux_register_reggroup_p;
tdep->gregset_reg_offset = i386_linux_gregset_reg_offset;
tdep->gregset_num_regs = ARRAY_SIZE (i386_linux_gregset_reg_offset);
tdep->sc_reg_offset = i386_linux_sc_reg_offset;
tdep->sc_num_regs = ARRAY_SIZE (i386_linux_sc_reg_offset);
+ tdep->xsave_xcr0_offset = I386_LINUX_XSAVE_XCR0_OFFSET;
+
set_gdbarch_process_record (gdbarch, i386_process_record);
+ set_gdbarch_process_record_signal (gdbarch, i386_linux_record_signal);
/* Initialize the i386_linux_record_tdep. */
- i386_linux_record_tdep.size__old_kernel_stat =
- I386_LINUX_RECORD_SIZE__old_kernel_stat;
- i386_linux_record_tdep.size_tms = I386_LINUX_RECORD_SIZE_tms;
- i386_linux_record_tdep.size_loff_t = I386_LINUX_RECORD_SIZE_loff_t;
- i386_linux_record_tdep.size_flock = I386_LINUX_RECORD_SIZE_flock;
- i386_linux_record_tdep.size_oldold_utsname =
- I386_LINUX_RECORD_SIZE_oldold_utsname;
- i386_linux_record_tdep.size_ustat = I386_LINUX_RECORD_SIZE_ustat;
- i386_linux_record_tdep.size_old_sigaction =
- I386_LINUX_RECORD_SIZE_old_sigaction;
- i386_linux_record_tdep.size_old_sigset_t =
- I386_LINUX_RECORD_SIZE_old_sigset_t;
- i386_linux_record_tdep.size_rlimit = I386_LINUX_RECORD_SIZE_rlimit;
- i386_linux_record_tdep.size_rusage = I386_LINUX_RECORD_SIZE_rusage;
- i386_linux_record_tdep.size_timeval = I386_LINUX_RECORD_SIZE_timeval;
- i386_linux_record_tdep.size_timezone = I386_LINUX_RECORD_SIZE_timezone;
- i386_linux_record_tdep.size_old_gid_t = I386_LINUX_RECORD_SIZE_old_gid_t;
- i386_linux_record_tdep.size_old_uid_t = I386_LINUX_RECORD_SIZE_old_uid_t;
- i386_linux_record_tdep.size_fd_set = I386_LINUX_RECORD_SIZE_fd_set;
- i386_linux_record_tdep.size_dirent = I386_LINUX_RECORD_SIZE_dirent;
- i386_linux_record_tdep.size_dirent64 = I386_LINUX_RECORD_SIZE_dirent64;
- i386_linux_record_tdep.size_statfs = I386_LINUX_RECORD_SIZE_statfs;
- i386_linux_record_tdep.size_statfs64 = I386_LINUX_RECORD_SIZE_statfs64;
- i386_linux_record_tdep.size_sockaddr = I386_LINUX_RECORD_SIZE_sockaddr;
- i386_linux_record_tdep.size_int = I386_LINUX_RECORD_SIZE_int;
- i386_linux_record_tdep.size_long = I386_LINUX_RECORD_SIZE_long;
- i386_linux_record_tdep.size_ulong = I386_LINUX_RECORD_SIZE_ulong;
- i386_linux_record_tdep.size_msghdr = I386_LINUX_RECORD_SIZE_msghdr;
- i386_linux_record_tdep.size_itimerval = I386_LINUX_RECORD_SIZE_itimerval;
- i386_linux_record_tdep.size_stat = I386_LINUX_RECORD_SIZE_stat;
- i386_linux_record_tdep.size_old_utsname =
- I386_LINUX_RECORD_SIZE_old_utsname;
- i386_linux_record_tdep.size_sysinfo = I386_LINUX_RECORD_SIZE_sysinfo;
- i386_linux_record_tdep.size_msqid_ds = I386_LINUX_RECORD_SIZE_msqid_ds;
- i386_linux_record_tdep.size_shmid_ds = I386_LINUX_RECORD_SIZE_shmid_ds;
- i386_linux_record_tdep.size_new_utsname =
- I386_LINUX_RECORD_SIZE_new_utsname;
- i386_linux_record_tdep.size_timex = I386_LINUX_RECORD_SIZE_timex;
- i386_linux_record_tdep.size_mem_dqinfo = I386_LINUX_RECORD_SIZE_mem_dqinfo;
- i386_linux_record_tdep.size_if_dqblk = I386_LINUX_RECORD_SIZE_if_dqblk;
- i386_linux_record_tdep.size_fs_quota_stat =
- I386_LINUX_RECORD_SIZE_fs_quota_stat;
- i386_linux_record_tdep.size_timespec = I386_LINUX_RECORD_SIZE_timespec;
- i386_linux_record_tdep.size_pollfd = I386_LINUX_RECORD_SIZE_pollfd;
- i386_linux_record_tdep.size_NFS_FHSIZE = I386_LINUX_RECORD_SIZE_NFS_FHSIZE;
- i386_linux_record_tdep.size_knfsd_fh = I386_LINUX_RECORD_SIZE_knfsd_fh;
- i386_linux_record_tdep.size_TASK_COMM_LEN =
- I386_LINUX_RECORD_SIZE_TASK_COMM_LEN;
- i386_linux_record_tdep.size_sigaction = I386_LINUX_RECORD_SIZE_sigaction;
- i386_linux_record_tdep.size_sigset_t = I386_LINUX_RECORD_SIZE_sigset_t;
- i386_linux_record_tdep.size_siginfo_t = I386_LINUX_RECORD_SIZE_siginfo_t;
- i386_linux_record_tdep.size_cap_user_data_t =
- I386_LINUX_RECORD_SIZE_cap_user_data_t;
- i386_linux_record_tdep.size_stack_t = I386_LINUX_RECORD_SIZE_stack_t;
- i386_linux_record_tdep.size_off_t = I386_LINUX_RECORD_SIZE_off_t;
- i386_linux_record_tdep.size_stat64 = I386_LINUX_RECORD_SIZE_stat64;
- i386_linux_record_tdep.size_gid_t = I386_LINUX_RECORD_SIZE_gid_t;
- i386_linux_record_tdep.size_uid_t = I386_LINUX_RECORD_SIZE_uid_t;
- i386_linux_record_tdep.size_PAGE_SIZE = I386_LINUX_RECORD_SIZE_PAGE_SIZE;
- i386_linux_record_tdep.size_flock64 = I386_LINUX_RECORD_SIZE_flock64;
- i386_linux_record_tdep.size_user_desc = I386_LINUX_RECORD_SIZE_user_desc;
- i386_linux_record_tdep.size_io_event = I386_LINUX_RECORD_SIZE_io_event;
- i386_linux_record_tdep.size_iocb = I386_LINUX_RECORD_SIZE_iocb;
- i386_linux_record_tdep.size_epoll_event =
- I386_LINUX_RECORD_SIZE_epoll_event;
- i386_linux_record_tdep.size_itimerspec = I386_LINUX_RECORD_SIZE_itimerspec;
- i386_linux_record_tdep.size_mq_attr = I386_LINUX_RECORD_SIZE_mq_attr;
- i386_linux_record_tdep.size_siginfo = I386_LINUX_RECORD_SIZE_siginfo;
- i386_linux_record_tdep.size_termios = I386_LINUX_RECORD_SIZE_termios;
- i386_linux_record_tdep.size_termios2 = I386_LINUX_RECORD_SIZE_termios2;
- i386_linux_record_tdep.size_pid_t = I386_LINUX_RECORD_SIZE_pid_t;
- i386_linux_record_tdep.size_winsize = I386_LINUX_RECORD_SIZE_winsize;
- i386_linux_record_tdep.size_char = I386_LINUX_RECORD_SIZE_char;
- i386_linux_record_tdep.size_serial_struct =
- I386_LINUX_RECORD_SIZE_serial_struct;
- i386_linux_record_tdep.size_serial_icounter_struct =
- I386_LINUX_RECORD_SIZE_serial_icounter_struct;
- i386_linux_record_tdep.size_hayes_esp_config =
- I386_LINUX_RECORD_SIZE_hayes_esp_config;
-
- i386_linux_record_tdep.ioctl_TCGETS = I386_LINUX_RECORD_IOCTL_TCGETS;
- i386_linux_record_tdep.ioctl_TCSETS = I386_LINUX_RECORD_IOCTL_TCSETS;
- i386_linux_record_tdep.ioctl_TCSETSW = I386_LINUX_RECORD_IOCTL_TCSETSW;
- i386_linux_record_tdep.ioctl_TCSETSF = I386_LINUX_RECORD_IOCTL_TCSETSF;
- i386_linux_record_tdep.ioctl_TCGETA = I386_LINUX_RECORD_IOCTL_TCGETA;
- i386_linux_record_tdep.ioctl_TCSETA = I386_LINUX_RECORD_IOCTL_TCSETA;
- i386_linux_record_tdep.ioctl_TCSETAW = I386_LINUX_RECORD_IOCTL_TCSETAW;
- i386_linux_record_tdep.ioctl_TCSETAF = I386_LINUX_RECORD_IOCTL_TCSETAF;
- i386_linux_record_tdep.ioctl_TCSBRK = I386_LINUX_RECORD_IOCTL_TCSBRK;
- i386_linux_record_tdep.ioctl_TCXONC = I386_LINUX_RECORD_IOCTL_TCXONC;
- i386_linux_record_tdep.ioctl_TCFLSH = I386_LINUX_RECORD_IOCTL_TCFLSH;
- i386_linux_record_tdep.ioctl_TIOCEXCL = I386_LINUX_RECORD_IOCTL_TIOCEXCL;
- i386_linux_record_tdep.ioctl_TIOCNXCL = I386_LINUX_RECORD_IOCTL_TIOCNXCL;
- i386_linux_record_tdep.ioctl_TIOCSCTTY = I386_LINUX_RECORD_IOCTL_TIOCSCTTY;
- i386_linux_record_tdep.ioctl_TIOCGPGRP = I386_LINUX_RECORD_IOCTL_TIOCGPGRP;
- i386_linux_record_tdep.ioctl_TIOCSPGRP = I386_LINUX_RECORD_IOCTL_TIOCSPGRP;
- i386_linux_record_tdep.ioctl_TIOCOUTQ = I386_LINUX_RECORD_IOCTL_TIOCOUTQ;
- i386_linux_record_tdep.ioctl_TIOCSTI = I386_LINUX_RECORD_IOCTL_TIOCSTI;
- i386_linux_record_tdep.ioctl_TIOCGWINSZ =
- I386_LINUX_RECORD_IOCTL_TIOCGWINSZ;
- i386_linux_record_tdep.ioctl_TIOCSWINSZ =
- I386_LINUX_RECORD_IOCTL_TIOCSWINSZ;
- i386_linux_record_tdep.ioctl_TIOCMGET = I386_LINUX_RECORD_IOCTL_TIOCMGET;
- i386_linux_record_tdep.ioctl_TIOCMBIS = I386_LINUX_RECORD_IOCTL_TIOCMBIS;
- i386_linux_record_tdep.ioctl_TIOCMBIC = I386_LINUX_RECORD_IOCTL_TIOCMBIC;
- i386_linux_record_tdep.ioctl_TIOCMSET = I386_LINUX_RECORD_IOCTL_TIOCMSET;
- i386_linux_record_tdep.ioctl_TIOCGSOFTCAR =
- I386_LINUX_RECORD_IOCTL_TIOCGSOFTCAR;
- i386_linux_record_tdep.ioctl_TIOCSSOFTCAR =
- I386_LINUX_RECORD_IOCTL_TIOCSSOFTCAR;
- i386_linux_record_tdep.ioctl_FIONREAD = I386_LINUX_RECORD_IOCTL_FIONREAD;
- i386_linux_record_tdep.ioctl_TIOCINQ = I386_LINUX_RECORD_IOCTL_TIOCINQ;
- i386_linux_record_tdep.ioctl_TIOCLINUX = I386_LINUX_RECORD_IOCTL_TIOCLINUX;
- i386_linux_record_tdep.ioctl_TIOCCONS = I386_LINUX_RECORD_IOCTL_TIOCCONS;
- i386_linux_record_tdep.ioctl_TIOCGSERIAL =
- I386_LINUX_RECORD_IOCTL_TIOCGSERIAL;
- i386_linux_record_tdep.ioctl_TIOCSSERIAL =
- I386_LINUX_RECORD_IOCTL_TIOCSSERIAL;
- i386_linux_record_tdep.ioctl_TIOCPKT = I386_LINUX_RECORD_IOCTL_TIOCPKT;
- i386_linux_record_tdep.ioctl_FIONBIO = I386_LINUX_RECORD_IOCTL_FIONBIO;
- i386_linux_record_tdep.ioctl_TIOCNOTTY = I386_LINUX_RECORD_IOCTL_TIOCNOTTY;
- i386_linux_record_tdep.ioctl_TIOCSETD = I386_LINUX_RECORD_IOCTL_TIOCSETD;
- i386_linux_record_tdep.ioctl_TIOCGETD = I386_LINUX_RECORD_IOCTL_TIOCGETD;
- i386_linux_record_tdep.ioctl_TCSBRKP = I386_LINUX_RECORD_IOCTL_TCSBRKP;
- i386_linux_record_tdep.ioctl_TIOCTTYGSTRUCT =
- I386_LINUX_RECORD_IOCTL_TIOCTTYGSTRUCT;
- i386_linux_record_tdep.ioctl_TIOCSBRK = I386_LINUX_RECORD_IOCTL_TIOCSBRK;
- i386_linux_record_tdep.ioctl_TIOCCBRK = I386_LINUX_RECORD_IOCTL_TIOCCBRK;
- i386_linux_record_tdep.ioctl_TIOCGSID = I386_LINUX_RECORD_IOCTL_TIOCGSID;
- i386_linux_record_tdep.ioctl_TCGETS2 = I386_LINUX_RECORD_IOCTL_TCGETS2;
- i386_linux_record_tdep.ioctl_TCSETS2 = I386_LINUX_RECORD_IOCTL_TCSETS2;
- i386_linux_record_tdep.ioctl_TCSETSW2 = I386_LINUX_RECORD_IOCTL_TCSETSW2;
- i386_linux_record_tdep.ioctl_TCSETSF2 = I386_LINUX_RECORD_IOCTL_TCSETSF2;
- i386_linux_record_tdep.ioctl_TIOCGPTN = I386_LINUX_RECORD_IOCTL_TIOCGPTN;
- i386_linux_record_tdep.ioctl_TIOCSPTLCK =
- I386_LINUX_RECORD_IOCTL_TIOCSPTLCK;
- i386_linux_record_tdep.ioctl_FIONCLEX = I386_LINUX_RECORD_IOCTL_FIONCLEX;
- i386_linux_record_tdep.ioctl_FIOCLEX = I386_LINUX_RECORD_IOCTL_FIOCLEX;
- i386_linux_record_tdep.ioctl_FIOASYNC = I386_LINUX_RECORD_IOCTL_FIOASYNC;
- i386_linux_record_tdep.ioctl_TIOCSERCONFIG =
- I386_LINUX_RECORD_IOCTL_TIOCSERCONFIG;
- i386_linux_record_tdep.ioctl_TIOCSERGWILD =
- I386_LINUX_RECORD_IOCTL_TIOCSERGWILD;
- i386_linux_record_tdep.ioctl_TIOCSERSWILD =
- I386_LINUX_RECORD_IOCTL_TIOCSERSWILD;
- i386_linux_record_tdep.ioctl_TIOCGLCKTRMIOS =
- I386_LINUX_RECORD_IOCTL_TIOCGLCKTRMIOS;
- i386_linux_record_tdep.ioctl_TIOCSLCKTRMIOS =
- I386_LINUX_RECORD_IOCTL_TIOCSLCKTRMIOS;
- i386_linux_record_tdep.ioctl_TIOCSERGSTRUCT =
- I386_LINUX_RECORD_IOCTL_TIOCSERGSTRUCT;
- i386_linux_record_tdep.ioctl_TIOCSERGETLSR =
- I386_LINUX_RECORD_IOCTL_TIOCSERGETLSR;
- i386_linux_record_tdep.ioctl_TIOCSERGETMULTI =
- I386_LINUX_RECORD_IOCTL_TIOCSERGETMULTI;
- i386_linux_record_tdep.ioctl_TIOCSERSETMULTI =
- I386_LINUX_RECORD_IOCTL_TIOCSERSETMULTI;
- i386_linux_record_tdep.ioctl_TIOCMIWAIT =
- I386_LINUX_RECORD_IOCTL_TIOCMIWAIT;
- i386_linux_record_tdep.ioctl_TIOCGICOUNT =
- I386_LINUX_RECORD_IOCTL_TIOCGICOUNT;
- i386_linux_record_tdep.ioctl_TIOCGHAYESESP =
- I386_LINUX_RECORD_IOCTL_TIOCGHAYESESP;
- i386_linux_record_tdep.ioctl_TIOCSHAYESESP =
- I386_LINUX_RECORD_IOCTL_TIOCSHAYESESP;
- i386_linux_record_tdep.ioctl_FIOQSIZE = I386_LINUX_RECORD_IOCTL_FIOQSIZE;
+ /* These values are the size of the type that will be used in a system
+ call. They are obtained from Linux Kernel source. */
+ i386_linux_record_tdep.size_pointer
+ = gdbarch_ptr_bit (gdbarch) / TARGET_CHAR_BIT;
+ i386_linux_record_tdep.size__old_kernel_stat = 32;
+ i386_linux_record_tdep.size_tms = 16;
+ i386_linux_record_tdep.size_loff_t = 8;
+ i386_linux_record_tdep.size_flock = 16;
+ i386_linux_record_tdep.size_oldold_utsname = 45;
+ i386_linux_record_tdep.size_ustat = 20;
+ i386_linux_record_tdep.size_old_sigaction = 16;
+ i386_linux_record_tdep.size_old_sigset_t = 4;
+ i386_linux_record_tdep.size_rlimit = 8;
+ i386_linux_record_tdep.size_rusage = 72;
+ i386_linux_record_tdep.size_timeval = 8;
+ i386_linux_record_tdep.size_timezone = 8;
+ i386_linux_record_tdep.size_old_gid_t = 2;
+ i386_linux_record_tdep.size_old_uid_t = 2;
+ i386_linux_record_tdep.size_fd_set = 128;
+ i386_linux_record_tdep.size_old_dirent = 268;
+ i386_linux_record_tdep.size_statfs = 64;
+ i386_linux_record_tdep.size_statfs64 = 84;
+ i386_linux_record_tdep.size_sockaddr = 16;
+ i386_linux_record_tdep.size_int
+ = gdbarch_int_bit (gdbarch) / TARGET_CHAR_BIT;
+ i386_linux_record_tdep.size_long
+ = gdbarch_long_bit (gdbarch) / TARGET_CHAR_BIT;
+ i386_linux_record_tdep.size_ulong
+ = gdbarch_long_bit (gdbarch) / TARGET_CHAR_BIT;
+ i386_linux_record_tdep.size_msghdr = 28;
+ i386_linux_record_tdep.size_itimerval = 16;
+ i386_linux_record_tdep.size_stat = 88;
+ i386_linux_record_tdep.size_old_utsname = 325;
+ i386_linux_record_tdep.size_sysinfo = 64;
+ i386_linux_record_tdep.size_msqid_ds = 88;
+ i386_linux_record_tdep.size_shmid_ds = 84;
+ i386_linux_record_tdep.size_new_utsname = 390;
+ i386_linux_record_tdep.size_timex = 128;
+ i386_linux_record_tdep.size_mem_dqinfo = 24;
+ i386_linux_record_tdep.size_if_dqblk = 68;
+ i386_linux_record_tdep.size_fs_quota_stat = 68;
+ i386_linux_record_tdep.size_timespec = 8;
+ i386_linux_record_tdep.size_pollfd = 8;
+ i386_linux_record_tdep.size_NFS_FHSIZE = 32;
+ i386_linux_record_tdep.size_knfsd_fh = 132;
+ i386_linux_record_tdep.size_TASK_COMM_LEN = 16;
+ i386_linux_record_tdep.size_sigaction = 20;
+ i386_linux_record_tdep.size_sigset_t = 8;
+ i386_linux_record_tdep.size_siginfo_t = 128;
+ i386_linux_record_tdep.size_cap_user_data_t = 12;
+ i386_linux_record_tdep.size_stack_t = 12;
+ i386_linux_record_tdep.size_off_t = i386_linux_record_tdep.size_long;
+ i386_linux_record_tdep.size_stat64 = 96;
+ i386_linux_record_tdep.size_gid_t = 4;
+ i386_linux_record_tdep.size_uid_t = 4;
+ i386_linux_record_tdep.size_PAGE_SIZE = 4096;
+ i386_linux_record_tdep.size_flock64 = 24;
+ i386_linux_record_tdep.size_user_desc = 16;
+ i386_linux_record_tdep.size_io_event = 32;
+ i386_linux_record_tdep.size_iocb = 64;
+ i386_linux_record_tdep.size_epoll_event = 12;
+ i386_linux_record_tdep.size_itimerspec
+ = i386_linux_record_tdep.size_timespec * 2;
+ i386_linux_record_tdep.size_mq_attr = 32;
+ i386_linux_record_tdep.size_termios = 36;
+ i386_linux_record_tdep.size_termios2 = 44;
+ i386_linux_record_tdep.size_pid_t = 4;
+ i386_linux_record_tdep.size_winsize = 8;
+ i386_linux_record_tdep.size_serial_struct = 60;
+ i386_linux_record_tdep.size_serial_icounter_struct = 80;
+ i386_linux_record_tdep.size_hayes_esp_config = 12;
+ i386_linux_record_tdep.size_size_t = 4;
+ i386_linux_record_tdep.size_iovec = 8;
+ i386_linux_record_tdep.size_time_t = 4;
+
+ /* These values are the second argument of system call "sys_ioctl".
+ They are obtained from Linux Kernel source. */
+ i386_linux_record_tdep.ioctl_TCGETS = 0x5401;
+ i386_linux_record_tdep.ioctl_TCSETS = 0x5402;
+ i386_linux_record_tdep.ioctl_TCSETSW = 0x5403;
+ i386_linux_record_tdep.ioctl_TCSETSF = 0x5404;
+ i386_linux_record_tdep.ioctl_TCGETA = 0x5405;
+ i386_linux_record_tdep.ioctl_TCSETA = 0x5406;
+ i386_linux_record_tdep.ioctl_TCSETAW = 0x5407;
+ i386_linux_record_tdep.ioctl_TCSETAF = 0x5408;
+ i386_linux_record_tdep.ioctl_TCSBRK = 0x5409;
+ i386_linux_record_tdep.ioctl_TCXONC = 0x540A;
+ i386_linux_record_tdep.ioctl_TCFLSH = 0x540B;
+ i386_linux_record_tdep.ioctl_TIOCEXCL = 0x540C;
+ i386_linux_record_tdep.ioctl_TIOCNXCL = 0x540D;
+ i386_linux_record_tdep.ioctl_TIOCSCTTY = 0x540E;
+ i386_linux_record_tdep.ioctl_TIOCGPGRP = 0x540F;
+ i386_linux_record_tdep.ioctl_TIOCSPGRP = 0x5410;
+ i386_linux_record_tdep.ioctl_TIOCOUTQ = 0x5411;
+ i386_linux_record_tdep.ioctl_TIOCSTI = 0x5412;
+ i386_linux_record_tdep.ioctl_TIOCGWINSZ = 0x5413;
+ i386_linux_record_tdep.ioctl_TIOCSWINSZ = 0x5414;
+ i386_linux_record_tdep.ioctl_TIOCMGET = 0x5415;
+ i386_linux_record_tdep.ioctl_TIOCMBIS = 0x5416;
+ i386_linux_record_tdep.ioctl_TIOCMBIC = 0x5417;
+ i386_linux_record_tdep.ioctl_TIOCMSET = 0x5418;
+ i386_linux_record_tdep.ioctl_TIOCGSOFTCAR = 0x5419;
+ i386_linux_record_tdep.ioctl_TIOCSSOFTCAR = 0x541A;
+ i386_linux_record_tdep.ioctl_FIONREAD = 0x541B;
+ i386_linux_record_tdep.ioctl_TIOCINQ = i386_linux_record_tdep.ioctl_FIONREAD;
+ i386_linux_record_tdep.ioctl_TIOCLINUX = 0x541C;
+ i386_linux_record_tdep.ioctl_TIOCCONS = 0x541D;
+ i386_linux_record_tdep.ioctl_TIOCGSERIAL = 0x541E;
+ i386_linux_record_tdep.ioctl_TIOCSSERIAL = 0x541F;
+ i386_linux_record_tdep.ioctl_TIOCPKT = 0x5420;
+ i386_linux_record_tdep.ioctl_FIONBIO = 0x5421;
+ i386_linux_record_tdep.ioctl_TIOCNOTTY = 0x5422;
+ i386_linux_record_tdep.ioctl_TIOCSETD = 0x5423;
+ i386_linux_record_tdep.ioctl_TIOCGETD = 0x5424;
+ i386_linux_record_tdep.ioctl_TCSBRKP = 0x5425;
+ i386_linux_record_tdep.ioctl_TIOCTTYGSTRUCT = 0x5426;
+ i386_linux_record_tdep.ioctl_TIOCSBRK = 0x5427;
+ i386_linux_record_tdep.ioctl_TIOCCBRK = 0x5428;
+ i386_linux_record_tdep.ioctl_TIOCGSID = 0x5429;
+ i386_linux_record_tdep.ioctl_TCGETS2 = 0x802c542a;
+ i386_linux_record_tdep.ioctl_TCSETS2 = 0x402c542b;
+ i386_linux_record_tdep.ioctl_TCSETSW2 = 0x402c542c;
+ i386_linux_record_tdep.ioctl_TCSETSF2 = 0x402c542d;
+ i386_linux_record_tdep.ioctl_TIOCGPTN = 0x80045430;
+ i386_linux_record_tdep.ioctl_TIOCSPTLCK = 0x40045431;
+ i386_linux_record_tdep.ioctl_FIONCLEX = 0x5450;
+ i386_linux_record_tdep.ioctl_FIOCLEX = 0x5451;
+ i386_linux_record_tdep.ioctl_FIOASYNC = 0x5452;
+ i386_linux_record_tdep.ioctl_TIOCSERCONFIG = 0x5453;
+ i386_linux_record_tdep.ioctl_TIOCSERGWILD = 0x5454;
+ i386_linux_record_tdep.ioctl_TIOCSERSWILD = 0x5455;
+ i386_linux_record_tdep.ioctl_TIOCGLCKTRMIOS = 0x5456;
+ i386_linux_record_tdep.ioctl_TIOCSLCKTRMIOS = 0x5457;
+ i386_linux_record_tdep.ioctl_TIOCSERGSTRUCT = 0x5458;
+ i386_linux_record_tdep.ioctl_TIOCSERGETLSR = 0x5459;
+ i386_linux_record_tdep.ioctl_TIOCSERGETMULTI = 0x545A;
+ i386_linux_record_tdep.ioctl_TIOCSERSETMULTI = 0x545B;
+ i386_linux_record_tdep.ioctl_TIOCMIWAIT = 0x545C;
+ i386_linux_record_tdep.ioctl_TIOCGICOUNT = 0x545D;
+ i386_linux_record_tdep.ioctl_TIOCGHAYESESP = 0x545E;
+ i386_linux_record_tdep.ioctl_TIOCSHAYESESP = 0x545F;
+ i386_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. */
+ i386_linux_record_tdep.fcntl_F_GETLK = 5;
+ i386_linux_record_tdep.fcntl_F_GETLK64 = 12;
+ i386_linux_record_tdep.fcntl_F_SETLK64 = 13;
+ i386_linux_record_tdep.fcntl_F_SETLKW64 = 14;
i386_linux_record_tdep.arg1 = I386_EBX_REGNUM;
i386_linux_record_tdep.arg2 = I386_ECX_REGNUM;
i386_linux_record_tdep.arg3 = I386_EDX_REGNUM;
i386_linux_record_tdep.arg4 = I386_ESI_REGNUM;
i386_linux_record_tdep.arg5 = I386_EDI_REGNUM;
+ i386_linux_record_tdep.arg6 = I386_EBP_REGNUM;
- tdep->i386_intx80_record = i386_linux_intx80_sysenter_record;
- tdep->i386_sysenter_record = i386_linux_intx80_sysenter_record;
+ tdep->i386_intx80_record = i386_linux_intx80_sysenter_syscall_record;
+ tdep->i386_sysenter_record = i386_linux_intx80_sysenter_syscall_record;
+ tdep->i386_syscall_record = i386_linux_intx80_sysenter_syscall_record;
- /* N_FUN symbols in shared libaries have 0 for their values and need
- to be relocated. */
+ /* N_FUN symbols in shared libraries have 0 for their values and need
+ to be relocated. */
set_gdbarch_sofun_address_maybe_missing (gdbarch, 1);
/* GNU/Linux uses SVR4-style shared libraries. */
set_gdbarch_fetch_tls_load_module_address (gdbarch,
svr4_fetch_objfile_link_map);
- /* Install supported register note sections. */
- set_gdbarch_core_regset_sections (gdbarch, i386_linux_regset_sections);
+ /* Core file support. */
+ set_gdbarch_iterate_over_regset_sections
+ (gdbarch, i386_linux_iterate_over_regset_sections);
+ set_gdbarch_core_read_description (gdbarch,
+ i386_linux_core_read_description);
/* Displaced stepping. */
set_gdbarch_displaced_step_copy_insn (gdbarch,
- simple_displaced_step_copy_insn);
+ i386_linux_displaced_step_copy_insn);
set_gdbarch_displaced_step_fixup (gdbarch, i386_displaced_step_fixup);
- set_gdbarch_displaced_step_free_closure (gdbarch,
- simple_displaced_step_free_closure);
- set_gdbarch_displaced_step_location (gdbarch,
- displaced_step_at_entry_point);
+ set_gdbarch_displaced_step_prepare (gdbarch, i386_displaced_step_prepare);
+ set_gdbarch_displaced_step_finish (gdbarch, i386_displaced_step_finish);
- set_gdbarch_get_siginfo_type (gdbarch, linux_get_siginfo_type);
-}
+ /* Functions for 'catch syscall'. */
+ set_xml_syscall_file_name (gdbarch, XML_SYSCALL_FILENAME_I386);
+ set_gdbarch_get_syscall_number (gdbarch,
+ i386_linux_get_syscall_number);
-/* Provide a prototype to silence -Wmissing-prototypes. */
-extern void _initialize_i386_linux_tdep (void);
+ set_gdbarch_get_siginfo_type (gdbarch, x86_linux_get_siginfo_type);
+ set_gdbarch_handle_segmentation_fault (gdbarch,
+ i386_linux_handle_segmentation_fault);
+}
+void _initialize_i386_linux_tdep ();
void
-_initialize_i386_linux_tdep (void)
+_initialize_i386_linux_tdep ()
{
gdbarch_register_osabi (bfd_arch_i386, 0, GDB_OSABI_LINUX,
i386_linux_init_abi);
projects / deliverable / binutils-gdb.git / blobdiff