#define PTRACE_SETHBPREGS 30
#endif
+/* Linux target op definitions for the ARM architecture. */
+
+class arm_target : public linux_process_target
+{
+public:
+
+ const regs_info *get_regs_info () override;
+
+ int breakpoint_kind_from_pc (CORE_ADDR *pcptr) override;
+
+ int breakpoint_kind_from_current_state (CORE_ADDR *pcptr) override;
+
+ const gdb_byte *sw_breakpoint_from_kind (int kind, int *size) override;
+
+ bool supports_software_single_step () override;
+
+ bool supports_z_point_type (char z_type) override;
+
+ bool supports_hardware_single_step () override;
+
+protected:
+
+ void low_arch_setup () override;
+
+ bool low_cannot_fetch_register (int regno) override;
+
+ bool low_cannot_store_register (int regno) override;
+
+ bool low_supports_breakpoints () override;
+
+ CORE_ADDR low_get_pc (regcache *regcache) override;
+
+ void low_set_pc (regcache *regcache, CORE_ADDR newpc) override;
+
+ std::vector<CORE_ADDR> low_get_next_pcs (regcache *regcache) override;
+
+ bool low_breakpoint_at (CORE_ADDR pc) override;
+
+ int low_insert_point (raw_bkpt_type type, CORE_ADDR addr,
+ int size, raw_breakpoint *bp) override;
+
+ int low_remove_point (raw_bkpt_type type, CORE_ADDR addr,
+ int size, raw_breakpoint *bp) override;
+
+ bool low_stopped_by_watchpoint () override;
+
+ CORE_ADDR low_stopped_data_address () override;
+
+ arch_process_info *low_new_process () override;
+
+ void low_delete_process (arch_process_info *info) override;
+
+ void low_new_thread (lwp_info *) override;
+
+ void low_delete_thread (arch_lwp_info *) override;
+
+ void low_new_fork (process_info *parent, process_info *child) override;
+
+ void low_prepare_to_resume (lwp_info *lwp) override;
+
+ bool low_supports_catch_syscall () override;
+
+ void low_get_syscall_trapinfo (regcache *regcache, int *sysno) override;
+};
+
+/* The singleton target ops object. */
+
+static arm_target the_arm_target;
+
+bool
+arm_target::low_supports_breakpoints ()
+{
+ return true;
+}
+
+CORE_ADDR
+arm_target::low_get_pc (regcache *regcache)
+{
+ return linux_get_pc_32bit (regcache);
+}
+
+void
+arm_target::low_set_pc (regcache *regcache, CORE_ADDR pc)
+{
+ linux_set_pc_32bit (regcache, pc);
+}
+
+int
+arm_target::breakpoint_kind_from_pc (CORE_ADDR *pcptr)
+{
+ return arm_breakpoint_kind_from_pc (pcptr);
+}
+
+int
+arm_target::breakpoint_kind_from_current_state (CORE_ADDR *pcptr)
+{
+ return arm_breakpoint_kind_from_current_state (pcptr);
+}
+
+const gdb_byte *
+arm_target::sw_breakpoint_from_kind (int kind, int *size)
+{
+ return arm_sw_breakpoint_from_kind (kind, size);
+}
+
+bool
+arm_target::low_breakpoint_at (CORE_ADDR pc)
+{
+ return arm_breakpoint_at (pc);
+}
+
/* Information describing the hardware breakpoint capabilities. */
static struct
{
arm_linux_get_next_pcs_fixup,
};
-static int
-arm_cannot_store_register (int regno)
+bool
+arm_target::low_cannot_store_register (int regno)
{
return (regno >= arm_num_regs);
}
-static int
-arm_cannot_fetch_register (int regno)
+bool
+arm_target::low_cannot_fetch_register (int regno)
{
return (regno >= arm_num_regs);
}
linux_stop_lwp (lwp);
}
-static int
-arm_supports_z_point_type (char z_type)
+bool
+arm_target::supports_z_point_type (char z_type)
{
switch (z_type)
{
case Z_PACKET_WRITE_WP:
case Z_PACKET_READ_WP:
case Z_PACKET_ACCESS_WP:
- return 1;
+ return true;
default:
/* Leave the handling of sw breakpoints with the gdb client. */
- return 0;
+ return false;
}
}
/* Insert hardware break-/watchpoint. */
-static int
-arm_insert_point (enum raw_bkpt_type type, CORE_ADDR addr,
- int len, struct raw_breakpoint *bp)
+int
+arm_target::low_insert_point (raw_bkpt_type type, CORE_ADDR addr,
+ int len, raw_breakpoint *bp)
{
struct process_info *proc = current_process ();
struct arm_linux_hw_breakpoint p, *pts;
}
/* Remove hardware break-/watchpoint. */
-static int
-arm_remove_point (enum raw_bkpt_type type, CORE_ADDR addr,
- int len, struct raw_breakpoint *bp)
+int
+arm_target::low_remove_point (raw_bkpt_type type, CORE_ADDR addr,
+ int len, raw_breakpoint *bp)
{
struct process_info *proc = current_process ();
struct arm_linux_hw_breakpoint p, *pts;
}
/* Return whether current thread is stopped due to a watchpoint. */
-static int
-arm_stopped_by_watchpoint (void)
+bool
+arm_target::low_stopped_by_watchpoint ()
{
struct lwp_info *lwp = get_thread_lwp (current_thread);
siginfo_t siginfo;
/* We must be able to set hardware watchpoints. */
if (arm_linux_get_hw_watchpoint_count () == 0)
- return 0;
+ return false;
/* Retrieve siginfo. */
errno = 0;
ptrace (PTRACE_GETSIGINFO, lwpid_of (current_thread), 0, &siginfo);
if (errno != 0)
- return 0;
+ return false;
/* This must be a hardware breakpoint. */
if (siginfo.si_signo != SIGTRAP
|| (siginfo.si_code & 0xffff) != 0x0004 /* TRAP_HWBKPT */)
- return 0;
+ return false;
/* If we are in a positive slot then we're looking at a breakpoint and not
a watchpoint. */
if (siginfo.si_errno >= 0)
- return 0;
+ return false;
/* Cache stopped data address for use by arm_stopped_data_address. */
lwp->arch_private->stopped_data_address
= (CORE_ADDR) (uintptr_t) siginfo.si_addr;
- return 1;
+ return true;
}
/* Return data address that triggered watchpoint. Called only if
- arm_stopped_by_watchpoint returned true. */
-static CORE_ADDR
-arm_stopped_data_address (void)
+ low_stopped_by_watchpoint returned true. */
+CORE_ADDR
+arm_target::low_stopped_data_address ()
{
struct lwp_info *lwp = get_thread_lwp (current_thread);
return lwp->arch_private->stopped_data_address;
}
/* Called when a new process is created. */
-static struct arch_process_info *
-arm_new_process (void)
+arch_process_info *
+arm_target::low_new_process ()
{
struct arch_process_info *info = XCNEW (struct arch_process_info);
return info;
/* Called when a process is being deleted. */
-static void
-arm_delete_process (struct arch_process_info *info)
+void
+arm_target::low_delete_process (arch_process_info *info)
{
xfree (info);
}
/* Called when a new thread is detected. */
-static void
-arm_new_thread (struct lwp_info *lwp)
+void
+arm_target::low_new_thread (lwp_info *lwp)
{
struct arch_lwp_info *info = XCNEW (struct arch_lwp_info);
int i;
/* Function to call when a thread is being deleted. */
-static void
-arm_delete_thread (struct arch_lwp_info *arch_lwp)
+void
+arm_target::low_delete_thread (arch_lwp_info *arch_lwp)
{
xfree (arch_lwp);
}
-static void
-arm_new_fork (struct process_info *parent, struct process_info *child)
+void
+arm_target::low_new_fork (process_info *parent, process_info *child)
{
struct arch_process_info *parent_proc_info;
struct arch_process_info *child_proc_info;
/* Called when resuming a thread.
If the debug regs have changed, update the thread's copies. */
-static void
-arm_prepare_to_resume (struct lwp_info *lwp)
+void
+arm_target::low_prepare_to_resume (lwp_info *lwp)
{
struct thread_info *thread = get_lwp_thread (lwp);
int pid = lwpid_of (thread);
gdb_assert (svc_number == __NR_sigreturn || svc_number == __NR_rt_sigreturn);
collect_register_by_name (regcache, "sp", &sp);
- the_target->pt->read_memory (sp, (unsigned char *) &sp_data, 4);
+ the_target->read_memory (sp, (unsigned char *) &sp_data, 4);
pc_offset = arm_linux_sigreturn_next_pc_offset
(sp, sp_data, svc_number, __NR_sigreturn == svc_number ? 1 : 0);
- the_target->pt->read_memory (sp + pc_offset, (unsigned char *) &next_pc, 4);
+ the_target->read_memory (sp + pc_offset, (unsigned char *) &next_pc, 4);
/* Set IS_THUMB according the CPSR saved on the stack. */
- the_target->pt->read_memory (sp + pc_offset + 4, (unsigned char *) &cpsr, 4);
+ the_target->read_memory (sp + pc_offset + 4, (unsigned char *) &cpsr, 4);
*is_thumb = ((cpsr & CPSR_T) != 0);
return next_pc;
return arm_linux_read_description (ARM_FP_TYPE_NONE);
}
-static void
-arm_arch_setup (void)
+void
+arm_target::low_arch_setup ()
{
int tid = lwpid_of (current_thread);
int gpregs[18];
have_ptrace_getregset = 0;
}
+bool
+arm_target::supports_software_single_step ()
+{
+ return true;
+}
+
/* Fetch the next possible PCs after the current instruction executes. */
-static std::vector<CORE_ADDR>
-arm_gdbserver_get_next_pcs (struct regcache *regcache)
+std::vector<CORE_ADDR>
+arm_target::low_get_next_pcs (regcache *regcache)
{
struct arm_get_next_pcs next_pcs_ctx;
/* Support for hardware single step. */
-static int
-arm_supports_hardware_single_step (void)
+bool
+arm_target::supports_hardware_single_step ()
+{
+ return false;
+}
+
+bool
+arm_target::low_supports_catch_syscall ()
{
- return 0;
+ return true;
}
-/* Implementation of linux_target_ops method "get_syscall_trapinfo". */
+/* Implementation of linux target ops method "low_get_syscall_trapinfo". */
-static void
-arm_get_syscall_trapinfo (struct regcache *regcache, int *sysno)
+void
+arm_target::low_get_syscall_trapinfo (regcache *regcache, int *sysno)
{
if (arm_is_thumb_mode ())
collect_register_by_name (regcache, "r7", sysno);
collect_register_by_name (regcache, "pc", &pc);
- if (the_target->pt->read_memory (pc - 4, (unsigned char *) &insn, 4))
+ if (read_memory (pc - 4, (unsigned char *) &insn, 4))
*sysno = UNKNOWN_SYSCALL;
else
{
&arm_regsets_info
};
-static const struct regs_info *
-arm_regs_info (void)
+const regs_info *
+arm_target::get_regs_info ()
{
const struct target_desc *tdesc = current_process ()->tdesc;
return ®s_info_arm;
}
-struct linux_target_ops the_low_target = {
- arm_arch_setup,
- arm_regs_info,
- arm_cannot_fetch_register,
- arm_cannot_store_register,
- NULL, /* fetch_register */
- linux_get_pc_32bit,
- linux_set_pc_32bit,
- arm_breakpoint_kind_from_pc,
- arm_sw_breakpoint_from_kind,
- arm_gdbserver_get_next_pcs,
- 0,
- arm_breakpoint_at,
- arm_supports_z_point_type,
- arm_insert_point,
- arm_remove_point,
- arm_stopped_by_watchpoint,
- arm_stopped_data_address,
- NULL, /* collect_ptrace_register */
- NULL, /* supply_ptrace_register */
- NULL, /* siginfo_fixup */
- arm_new_process,
- arm_delete_process,
- arm_new_thread,
- arm_delete_thread,
- arm_new_fork,
- arm_prepare_to_resume,
- NULL, /* process_qsupported */
- NULL, /* supports_tracepoints */
- NULL, /* get_thread_area */
- NULL, /* install_fast_tracepoint_jump_pad */
- NULL, /* emit_ops */
- NULL, /* get_min_fast_tracepoint_insn_len */
- NULL, /* supports_range_stepping */
- arm_breakpoint_kind_from_current_state,
- arm_supports_hardware_single_step,
- arm_get_syscall_trapinfo,
-};
+/* The linux target ops object. */
+
+linux_process_target *the_linux_target = &the_arm_target;
void
initialize_low_arch (void)
projects / deliverable / binutils-gdb.git / blobdiff