/* GNU/Linux on ARM target support.
- Copyright (C) 1999-2013 Free Software Foundation, Inc.
+ Copyright (C) 1999-2015 Free Software Foundation, Inc.
This file is part of GDB.
#include "tramp-frame.h"
#include "breakpoint.h"
#include "auxv.h"
+#include "xml-syscall.h"
#include "arm-tdep.h"
#include "arm-linux-tdep.h"
#include "glibc-tdep.h"
#include "arch-utils.h"
#include "inferior.h"
+#include "infrun.h"
#include "gdbthread.h"
#include "symfile.h"
+#include "record-full.h"
+#include "linux-record.h"
+
#include "cli/cli-utils.h"
#include "stap-probe.h"
#include "parser-defs.h"
#include "user-regs.h"
#include <ctype.h>
-
-#include "gdb_string.h"
-
-/* This is defined in <elf.h> on ARM GNU/Linux systems. */
-#define AT_HWCAP 16
-
+#include "elf/common.h"
extern int arm_apcs_32;
/* Under ARM GNU/Linux the traditional way of performing a breakpoint
of the software interrupt the kernel stops the inferior with a
SIGTRAP, and wakes the debugger. */
-static const char arm_linux_arm_le_breakpoint[] = { 0x01, 0x00, 0x9f, 0xef };
+static const gdb_byte arm_linux_arm_le_breakpoint[] = { 0x01, 0x00, 0x9f, 0xef };
-static const char arm_linux_arm_be_breakpoint[] = { 0xef, 0x9f, 0x00, 0x01 };
+static const gdb_byte arm_linux_arm_be_breakpoint[] = { 0xef, 0x9f, 0x00, 0x01 };
/* However, the EABI syscall interface (new in Nov. 2005) does not look at
the operand of the swi if old-ABI compatibility is disabled. Therefore,
version 2.5.70 (May 2003), so should be a safe assumption for EABI
binaries. */
-static const char eabi_linux_arm_le_breakpoint[] = { 0xf0, 0x01, 0xf0, 0xe7 };
+static const gdb_byte eabi_linux_arm_le_breakpoint[] = { 0xf0, 0x01, 0xf0, 0xe7 };
-static const char eabi_linux_arm_be_breakpoint[] = { 0xe7, 0xf0, 0x01, 0xf0 };
+static const gdb_byte eabi_linux_arm_be_breakpoint[] = { 0xe7, 0xf0, 0x01, 0xf0 };
/* All the kernels which support Thumb support using a specific undefined
instruction for the Thumb breakpoint. */
-static const char arm_linux_thumb_be_breakpoint[] = {0xde, 0x01};
+static const gdb_byte arm_linux_thumb_be_breakpoint[] = {0xde, 0x01};
-static const char arm_linux_thumb_le_breakpoint[] = {0x01, 0xde};
+static const gdb_byte arm_linux_thumb_le_breakpoint[] = {0x01, 0xde};
/* Because the 16-bit Thumb breakpoint is affected by Thumb-2 IT blocks,
we must use a length-appropriate breakpoint for 32-bit Thumb
instructions. See also thumb_get_next_pc. */
-static const char arm_linux_thumb2_be_breakpoint[] = { 0xf7, 0xf0, 0xa0, 0x00 };
+static const gdb_byte arm_linux_thumb2_be_breakpoint[] = { 0xf7, 0xf0, 0xa0, 0x00 };
-static const char arm_linux_thumb2_le_breakpoint[] = { 0xf0, 0xf7, 0x00, 0xa0 };
+static const gdb_byte arm_linux_thumb2_le_breakpoint[] = { 0xf0, 0xf7, 0x00, 0xa0 };
/* Description of the longjmp buffer. The buffer is treated as an array of
elements of size ARM_LINUX_JB_ELEMENT_SIZE.
#define ARM_SET_R7_RT_SIGRETURN 0xe3a070ad
#define ARM_EABI_SYSCALL 0xef000000
+/* Equivalent patterns for Thumb2. */
+#define THUMB2_SET_R7_SIGRETURN1 0xf04f
+#define THUMB2_SET_R7_SIGRETURN2 0x0777
+#define THUMB2_SET_R7_RT_SIGRETURN1 0xf04f
+#define THUMB2_SET_R7_RT_SIGRETURN2 0x07ad
+#define THUMB2_EABI_SYSCALL 0xdf00
+
/* OABI syscall restart trampoline, used for EABI executables too
whenever OABI support has been enabled in the kernel. */
#define ARM_OABI_SYSCALL_RESTART_SYSCALL 0xef900000
arm_linux_rt_sigreturn_init
};
+static struct tramp_frame thumb2_eabi_linux_sigreturn_tramp_frame = {
+ SIGTRAMP_FRAME,
+ 2,
+ {
+ { THUMB2_SET_R7_SIGRETURN1, -1 },
+ { THUMB2_SET_R7_SIGRETURN2, -1 },
+ { THUMB2_EABI_SYSCALL, -1 },
+ { TRAMP_SENTINEL_INSN }
+ },
+ arm_linux_sigreturn_init
+};
+
+static struct tramp_frame thumb2_eabi_linux_rt_sigreturn_tramp_frame = {
+ SIGTRAMP_FRAME,
+ 2,
+ {
+ { THUMB2_SET_R7_RT_SIGRETURN1, -1 },
+ { THUMB2_SET_R7_RT_SIGRETURN2, -1 },
+ { THUMB2_EABI_SYSCALL, -1 },
+ { TRAMP_SENTINEL_INSN }
+ },
+ arm_linux_rt_sigreturn_init
+};
+
static struct tramp_frame arm_linux_restart_syscall_tramp_frame = {
NORMAL_FRAME,
4,
{
struct gdbarch *gdbarch = get_regcache_arch (regcache);
enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
- const gdb_byte *gregs = gregs_buf;
+ const gdb_byte *gregs = (const gdb_byte *) gregs_buf;
int regno;
CORE_ADDR reg_pc;
gdb_byte pc_buf[INT_REGISTER_SIZE];
const struct regcache *regcache,
int regnum, void *gregs_buf, size_t len)
{
- gdb_byte *gregs = gregs_buf;
+ gdb_byte *gregs = (gdb_byte *) gregs_buf;
int regno;
for (regno = ARM_A1_REGNUM; regno < ARM_PC_REGNUM; regno++)
struct regcache *regcache,
int regnum, const void *regs_buf, size_t len)
{
- const gdb_byte *regs = regs_buf;
+ const gdb_byte *regs = (const gdb_byte *) regs_buf;
int regno;
if (regnum == ARM_FPS_REGNUM || regnum == -1)
const struct regcache *regcache,
int regnum, void *regs_buf, size_t len)
{
- gdb_byte *regs = regs_buf;
+ gdb_byte *regs = (gdb_byte *) regs_buf;
int regno;
for (regno = ARM_F0_REGNUM; regno <= ARM_F7_REGNUM; regno++)
struct regcache *regcache,
int regnum, const void *regs_buf, size_t len)
{
- const gdb_byte *regs = regs_buf;
+ const gdb_byte *regs = (const gdb_byte *) regs_buf;
int regno;
if (regnum == ARM_FPSCR_REGNUM || regnum == -1)
const struct regcache *regcache,
int regnum, void *regs_buf, size_t len)
{
- gdb_byte *regs = regs_buf;
+ gdb_byte *regs = (gdb_byte *) regs_buf;
int regno;
if (regnum == ARM_FPSCR_REGNUM || regnum == -1)
regs + (regno - ARM_D0_REGNUM) * 8);
}
-/* Return the appropriate register set for the core section identified
- by SECT_NAME and SECT_SIZE. */
-
-static const struct regset *
-arm_linux_regset_from_core_section (struct gdbarch *gdbarch,
- const char *sect_name, size_t sect_size)
-{
- struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
-
- if (strcmp (sect_name, ".reg") == 0
- && sect_size == ARM_LINUX_SIZEOF_GREGSET)
- {
- if (tdep->gregset == NULL)
- tdep->gregset = regset_alloc (gdbarch, arm_linux_supply_gregset,
- arm_linux_collect_gregset);
- return tdep->gregset;
- }
-
- if (strcmp (sect_name, ".reg2") == 0
- && sect_size == ARM_LINUX_SIZEOF_NWFPE)
- {
- if (tdep->fpregset == NULL)
- tdep->fpregset = regset_alloc (gdbarch, arm_linux_supply_nwfpe,
- arm_linux_collect_nwfpe);
- return tdep->fpregset;
- }
+static const struct regset arm_linux_gregset =
+ {
+ NULL, arm_linux_supply_gregset, arm_linux_collect_gregset
+ };
- if (strcmp (sect_name, ".reg-arm-vfp") == 0
- && sect_size == ARM_LINUX_SIZEOF_VFP)
- {
- if (tdep->vfpregset == NULL)
- tdep->vfpregset = regset_alloc (gdbarch, arm_linux_supply_vfp,
- arm_linux_collect_vfp);
- return tdep->vfpregset;
- }
+static const struct regset arm_linux_fpregset =
+ {
+ NULL, arm_linux_supply_nwfpe, arm_linux_collect_nwfpe
+ };
- return NULL;
-}
+static const struct regset arm_linux_vfpregset =
+ {
+ NULL, arm_linux_supply_vfp, arm_linux_collect_vfp
+ };
-/* Core file register set sections. */
+/* Iterate over core file register note sections. */
-static struct core_regset_section arm_linux_fpa_regset_sections[] =
+static void
+arm_linux_iterate_over_regset_sections (struct gdbarch *gdbarch,
+ iterate_over_regset_sections_cb *cb,
+ void *cb_data,
+ const struct regcache *regcache)
{
- { ".reg", ARM_LINUX_SIZEOF_GREGSET, "general-purpose" },
- { ".reg2", ARM_LINUX_SIZEOF_NWFPE, "FPA floating-point" },
- { NULL, 0}
-};
+ struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
-static struct core_regset_section arm_linux_vfp_regset_sections[] =
-{
- { ".reg", ARM_LINUX_SIZEOF_GREGSET, "general-purpose" },
- { ".reg-arm-vfp", ARM_LINUX_SIZEOF_VFP, "VFP floating-point" },
- { NULL, 0}
-};
+ cb (".reg", ARM_LINUX_SIZEOF_GREGSET, &arm_linux_gregset, NULL, cb_data);
+
+ if (tdep->vfp_register_count > 0)
+ cb (".reg-arm-vfp", ARM_LINUX_SIZEOF_VFP, &arm_linux_vfpregset,
+ "VFP floating-point", cb_data);
+ else if (tdep->have_fpa_registers)
+ cb (".reg2", ARM_LINUX_SIZEOF_NWFPE, &arm_linux_fpregset,
+ "FPA floating-point", cb_data);
+}
/* Determine target description from core file. */
return 0;
}
+/* At a ptrace syscall-stop, return the syscall number. This either
+ comes from the SWI instruction (OABI) or from r7 (EABI).
+
+ When the function fails, it should return -1. */
+
+static LONGEST
+arm_linux_get_syscall_number (struct gdbarch *gdbarch,
+ ptid_t ptid)
+{
+ struct regcache *regs = get_thread_regcache (ptid);
+ struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
+
+ ULONGEST pc;
+ ULONGEST cpsr;
+ ULONGEST t_bit = arm_psr_thumb_bit (gdbarch);
+ int is_thumb;
+ ULONGEST svc_number = -1;
+
+ regcache_cooked_read_unsigned (regs, ARM_PC_REGNUM, &pc);
+ regcache_cooked_read_unsigned (regs, ARM_PS_REGNUM, &cpsr);
+ is_thumb = (cpsr & t_bit) != 0;
+
+ if (is_thumb)
+ {
+ regcache_cooked_read_unsigned (regs, 7, &svc_number);
+ }
+ else
+ {
+ enum bfd_endian byte_order_for_code =
+ gdbarch_byte_order_for_code (gdbarch);
+
+ /* PC gets incremented before the syscall-stop, so read the
+ previous instruction. */
+ unsigned long this_instr =
+ read_memory_unsigned_integer (pc - 4, 4, byte_order_for_code);
+
+ unsigned long svc_operand = (0x00ffffff & this_instr);
+
+ if (svc_operand)
+ {
+ /* OABI */
+ svc_number = svc_operand - 0x900000;
+ }
+ else
+ {
+ /* EABI */
+ regcache_cooked_read_unsigned (regs, 7, &svc_number);
+ }
+ }
+
+ return svc_number;
+}
+
/* When FRAME is at a syscall instruction, return the PC of the next
instruction to be executed. */
if (arm_deal_with_atomic_sequence (frame))
return 1;
+ /* If the target does have hardware single step, GDB doesn't have
+ to bother software single step. */
+ if (target_can_do_single_step () == 1)
+ return 0;
+
next_pc = arm_get_next_pc (frame, get_frame_pc (frame));
/* The Linux kernel offers some user-mode helpers in a high page. We can
struct regcache *regs,
struct displaced_step_closure *dsc)
{
- CORE_ADDR from = dsc->insn_addr;
ULONGEST apparent_pc;
int within_scratch;
}
if (within_scratch)
- displaced_write_reg (regs, dsc, ARM_PC_REGNUM, from + 4, BRANCH_WRITE_PC);
+ displaced_write_reg (regs, dsc, ARM_PC_REGNUM,
+ dsc->insn_addr + dsc->insn_size, BRANCH_WRITE_PC);
}
static int
&return_to, &is_thumb);
if (is_sigreturn)
{
- struct symtab_and_line sal;
-
- if (debug_displaced)
- fprintf_unfiltered (gdb_stdlog, "displaced: found "
- "sigreturn/rt_sigreturn SVC call. PC in frame = %lx\n",
- (unsigned long) get_frame_pc (frame));
-
- if (debug_displaced)
- fprintf_unfiltered (gdb_stdlog, "displaced: unwind pc = %lx. "
- "Setting momentary breakpoint.\n", (unsigned long) return_to);
-
- gdb_assert (inferior_thread ()->control.step_resume_breakpoint
- == NULL);
-
- sal = find_pc_line (return_to, 0);
- sal.pc = return_to;
- sal.section = find_pc_overlay (return_to);
- sal.explicit_pc = 1;
-
- frame = get_prev_frame (frame);
-
- if (frame)
- {
- inferior_thread ()->control.step_resume_breakpoint
- = set_momentary_breakpoint (gdbarch, sal, get_frame_id (frame),
- bp_step_resume);
-
- /* set_momentary_breakpoint invalidates FRAME. */
- frame = NULL;
-
- /* We need to make sure we actually insert the momentary
- breakpoint set above. */
- insert_breakpoints ();
- }
- else if (debug_displaced)
- fprintf_unfiltered (gdb_stderr, "displaced: couldn't find previous "
- "frame to set momentary breakpoint for "
- "sigreturn/rt_sigreturn\n");
+ struct symtab_and_line sal;
+
+ if (debug_displaced)
+ fprintf_unfiltered (gdb_stdlog, "displaced: found "
+ "sigreturn/rt_sigreturn SVC call. PC in "
+ "frame = %lx\n",
+ (unsigned long) get_frame_pc (frame));
+
+ if (debug_displaced)
+ fprintf_unfiltered (gdb_stdlog, "displaced: unwind pc = %lx. "
+ "Setting momentary breakpoint.\n",
+ (unsigned long) return_to);
+
+ gdb_assert (inferior_thread ()->control.step_resume_breakpoint
+ == NULL);
+
+ sal = find_pc_line (return_to, 0);
+ sal.pc = return_to;
+ sal.section = find_pc_overlay (return_to);
+ sal.explicit_pc = 1;
+
+ frame = get_prev_frame (frame);
+
+ if (frame)
+ {
+ inferior_thread ()->control.step_resume_breakpoint
+ = set_momentary_breakpoint (gdbarch, sal, get_frame_id (frame),
+ bp_step_resume);
+
+ /* set_momentary_breakpoint invalidates FRAME. */
+ frame = NULL;
+
+ /* We need to make sure we actually insert the momentary
+ breakpoint set above. */
+ insert_breakpoints ();
}
else if (debug_displaced)
- fprintf_unfiltered (gdb_stdlog, "displaced: sigreturn/rt_sigreturn "
- "SVC call not in signal trampoline frame\n");
-
+ fprintf_unfiltered (gdb_stderr, "displaced: couldn't find previous "
+ "frame to set momentary breakpoint for "
+ "sigreturn/rt_sigreturn\n");
+ }
+ else if (debug_displaced)
+ fprintf_unfiltered (gdb_stdlog, "displaced: found SVC call\n");
/* Preparation: If we detect sigreturn, set momentary breakpoint at resume
location, else nothing.
Insn: unmodified svc.
- Cleanup: if pc lands in scratch space, pc <- insn_addr + 4
+ Cleanup: if pc lands in scratch space, pc <- insn_addr + insn_size
else leave pc alone. */
CORE_ADDR from, CORE_ADDR to,
struct regcache *regs)
{
- struct displaced_step_closure *dsc
- = xmalloc (sizeof (struct displaced_step_closure));
+ struct displaced_step_closure *dsc = XNEW (struct displaced_step_closure);
/* Detect when we enter an (inaccessible by GDB) Linux kernel helper, and
stop at the return location. */
return dsc;
}
+/* Implementation of `gdbarch_stap_is_single_operand', as defined in
+ gdbarch.h. */
+
static int
arm_stap_is_single_operand (struct gdbarch *gdbarch, const char *s)
{
- return (*s == '#' /* Literal number. */
+ return (*s == '#' || *s == '$' || isdigit (*s) /* Literal number. */
|| *s == '[' /* Register indirection or
displacement. */
|| isalpha (*s)); /* Register value. */
{
/* Temporary holder for lookahead. */
const char *tmp = p->arg;
+ char *endp;
/* Used to save the register name. */
const char *start;
char *regname;
return 0;
len = tmp - start;
- regname = alloca (len + 2);
+ regname = (char *) alloca (len + 2);
offset = 0;
if (isdigit (*start))
++tmp;
tmp = skip_spaces_const (tmp);
- if (*tmp++ != '#')
- return 0;
+ if (*tmp == '#' || *tmp == '$')
+ ++tmp;
if (*tmp == '-')
{
got_minus = 1;
}
- displacement = strtol (tmp, (char **) &tmp, 10);
+ displacement = strtol (tmp, &endp, 10);
+ tmp = endp;
/* Skipping last `]'. */
if (*tmp++ != ']')
return 0;
/* The displacement. */
- write_exp_elt_opcode (OP_LONG);
- write_exp_elt_type (builtin_type (gdbarch)->builtin_long);
- write_exp_elt_longcst (displacement);
- write_exp_elt_opcode (OP_LONG);
+ write_exp_elt_opcode (&p->pstate, OP_LONG);
+ write_exp_elt_type (&p->pstate, builtin_type (gdbarch)->builtin_long);
+ write_exp_elt_longcst (&p->pstate, displacement);
+ write_exp_elt_opcode (&p->pstate, OP_LONG);
if (got_minus)
- write_exp_elt_opcode (UNOP_NEG);
+ write_exp_elt_opcode (&p->pstate, UNOP_NEG);
/* The register name. */
- write_exp_elt_opcode (OP_REGISTER);
+ write_exp_elt_opcode (&p->pstate, OP_REGISTER);
str.ptr = regname;
str.length = len;
- write_exp_string (str);
- write_exp_elt_opcode (OP_REGISTER);
+ write_exp_string (&p->pstate, str);
+ write_exp_elt_opcode (&p->pstate, OP_REGISTER);
- write_exp_elt_opcode (BINOP_ADD);
+ write_exp_elt_opcode (&p->pstate, BINOP_ADD);
/* Casting to the expected type. */
- write_exp_elt_opcode (UNOP_CAST);
- write_exp_elt_type (lookup_pointer_type (p->arg_type));
- write_exp_elt_opcode (UNOP_CAST);
+ write_exp_elt_opcode (&p->pstate, UNOP_CAST);
+ write_exp_elt_type (&p->pstate, lookup_pointer_type (p->arg_type));
+ write_exp_elt_opcode (&p->pstate, UNOP_CAST);
- write_exp_elt_opcode (UNOP_IND);
+ write_exp_elt_opcode (&p->pstate, UNOP_IND);
p->arg = tmp;
}
return 1;
}
+/* ARM process record-replay constructs: syscall, signal etc. */
+
+struct linux_record_tdep arm_linux_record_tdep;
+
+/* arm_canonicalize_syscall maps from the native arm Linux set
+ of syscall ids into a canonical set of syscall ids used by
+ process record. */
+
+static enum gdb_syscall
+arm_canonicalize_syscall (int syscall)
+{
+ enum { sys_process_vm_writev = 377 };
+
+ if (syscall <= gdb_sys_sched_getaffinity)
+ return (enum gdb_syscall) syscall;
+ else if (syscall >= 243 && syscall <= 247)
+ return (enum gdb_syscall) (syscall + 2);
+ else if (syscall >= 248 && syscall <= 253)
+ return (enum gdb_syscall) (syscall + 4);
+
+ return gdb_sys_no_syscall;
+}
+
+/* Record all registers but PC register for process-record. */
+
+static int
+arm_all_but_pc_registers_record (struct regcache *regcache)
+{
+ int i;
+
+ for (i = 0; i < ARM_PC_REGNUM; i++)
+ {
+ if (record_full_arch_list_add_reg (regcache, ARM_A1_REGNUM + i))
+ return -1;
+ }
+
+ if (record_full_arch_list_add_reg (regcache, ARM_PS_REGNUM))
+ return -1;
+
+ return 0;
+}
+
+/* Handler for arm system call instruction recording. */
+
+static int
+arm_linux_syscall_record (struct regcache *regcache, unsigned long svc_number)
+{
+ int ret = 0;
+ enum gdb_syscall syscall_gdb;
+
+ syscall_gdb = arm_canonicalize_syscall (svc_number);
+
+ if (syscall_gdb == gdb_sys_no_syscall)
+ {
+ printf_unfiltered (_("Process record and replay target doesn't "
+ "support syscall number %s\n"),
+ plongest (svc_number));
+ 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 != 0)
+ return ret;
+
+ /* Record the return value of the system call. */
+ if (record_full_arch_list_add_reg (regcache, ARM_A1_REGNUM))
+ return -1;
+ /* Record LR. */
+ if (record_full_arch_list_add_reg (regcache, ARM_LR_REGNUM))
+ return -1;
+ /* Record CPSR. */
+ if (record_full_arch_list_add_reg (regcache, ARM_PS_REGNUM))
+ return -1;
+
+ return 0;
+}
+
+/* Implement the skip_trampoline_code gdbarch method. */
+
+static CORE_ADDR
+arm_linux_skip_trampoline_code (struct frame_info *frame, CORE_ADDR pc)
+{
+ CORE_ADDR target_pc = arm_skip_stub (frame, pc);
+
+ if (target_pc != 0)
+ return target_pc;
+
+ return find_solib_trampoline_target (frame, pc);
+}
+
static void
arm_linux_init_abi (struct gdbarch_info info,
struct gdbarch *gdbarch)
{
+ static const char *const stap_integer_prefixes[] = { "#", "$", "", NULL };
+ static const char *const stap_register_prefixes[] = { "r", NULL };
+ static const char *const stap_register_indirection_prefixes[] = { "[",
+ NULL };
+ static const char *const stap_register_indirection_suffixes[] = { "]",
+ NULL };
struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
linux_init_abi (info, gdbarch);
tdep->lowest_pc = 0x8000;
- if (info.byte_order == BFD_ENDIAN_BIG)
+ if (info.byte_order_for_code == BFD_ENDIAN_BIG)
{
if (tdep->arm_abi == ARM_ABI_AAPCS)
tdep->arm_breakpoint = eabi_linux_arm_be_breakpoint;
set_gdbarch_software_single_step (gdbarch, arm_linux_software_single_step);
/* Shared library handling. */
- set_gdbarch_skip_trampoline_code (gdbarch, find_solib_trampoline_target);
+ set_gdbarch_skip_trampoline_code (gdbarch, arm_linux_skip_trampoline_code);
set_gdbarch_skip_solib_resolver (gdbarch, glibc_skip_solib_resolver);
/* Enable TLS support. */
&arm_eabi_linux_sigreturn_tramp_frame);
tramp_frame_prepend_unwinder (gdbarch,
&arm_eabi_linux_rt_sigreturn_tramp_frame);
+ tramp_frame_prepend_unwinder (gdbarch,
+ &thumb2_eabi_linux_sigreturn_tramp_frame);
+ tramp_frame_prepend_unwinder (gdbarch,
+ &thumb2_eabi_linux_rt_sigreturn_tramp_frame);
tramp_frame_prepend_unwinder (gdbarch,
&arm_linux_restart_syscall_tramp_frame);
tramp_frame_prepend_unwinder (gdbarch,
&arm_kernel_linux_restart_syscall_tramp_frame);
/* Core file support. */
- set_gdbarch_regset_from_core_section (gdbarch,
- arm_linux_regset_from_core_section);
+ set_gdbarch_iterate_over_regset_sections
+ (gdbarch, arm_linux_iterate_over_regset_sections);
set_gdbarch_core_read_description (gdbarch, arm_linux_core_read_description);
- if (tdep->have_vfp_registers)
- set_gdbarch_core_regset_sections (gdbarch, arm_linux_vfp_regset_sections);
- else if (tdep->have_fpa_registers)
- set_gdbarch_core_regset_sections (gdbarch, arm_linux_fpa_regset_sections);
-
- set_gdbarch_get_siginfo_type (gdbarch, linux_get_siginfo_type);
-
/* Displaced stepping. */
set_gdbarch_displaced_step_copy_insn (gdbarch,
arm_linux_displaced_step_copy_insn);
set_gdbarch_displaced_step_fixup (gdbarch, arm_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_location (gdbarch, linux_displaced_step_location);
/* Reversible debugging, process record. */
set_gdbarch_process_record (gdbarch, arm_process_record);
/* SystemTap functions. */
- set_gdbarch_stap_integer_prefix (gdbarch, "#");
- set_gdbarch_stap_register_prefix (gdbarch, "r");
- set_gdbarch_stap_register_indirection_prefix (gdbarch, "[");
- set_gdbarch_stap_register_indirection_suffix (gdbarch, "]");
+ set_gdbarch_stap_integer_prefixes (gdbarch, stap_integer_prefixes);
+ set_gdbarch_stap_register_prefixes (gdbarch, stap_register_prefixes);
+ set_gdbarch_stap_register_indirection_prefixes (gdbarch,
+ stap_register_indirection_prefixes);
+ set_gdbarch_stap_register_indirection_suffixes (gdbarch,
+ stap_register_indirection_suffixes);
set_gdbarch_stap_gdb_register_prefix (gdbarch, "r");
set_gdbarch_stap_is_single_operand (gdbarch, arm_stap_is_single_operand);
set_gdbarch_stap_parse_special_token (gdbarch,
tdep->syscall_next_pc = arm_linux_syscall_next_pc;
+ /* `catch syscall' */
+ set_xml_syscall_file_name (gdbarch, "syscalls/arm-linux.xml");
+ set_gdbarch_get_syscall_number (gdbarch, arm_linux_get_syscall_number);
+
/* Syscall record. */
- tdep->arm_swi_record = NULL;
+ tdep->arm_syscall_record = arm_linux_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_A1_REGNUM + 1;
+ arm_linux_record_tdep.arg2 = ARM_A1_REGNUM + 2;
+ arm_linux_record_tdep.arg3 = ARM_A1_REGNUM + 3;
+ arm_linux_record_tdep.arg4 = ARM_A1_REGNUM + 3;
}
/* Provide a prototype to silence -Wmissing-prototypes. */
projects / deliverable / binutils-gdb.git / blobdiff