aboutsummaryrefslogtreecommitdiff
path: root/gdb
diff options
context:
space:
mode:
Diffstat (limited to 'gdb')
-rw-r--r--gdb/gdbserver/ChangeLog44
-rw-r--r--gdb/gdbserver/linux-aarch64-low.c10
-rw-r--r--gdb/gdbserver/linux-arm-low.c11
-rw-r--r--gdb/gdbserver/linux-bfin-low.c29
-rw-r--r--gdb/gdbserver/linux-crisv32-low.c24
-rw-r--r--gdb/gdbserver/linux-low.c33
-rw-r--r--gdb/gdbserver/linux-low.h3
-rw-r--r--gdb/gdbserver/linux-m32r-low.c29
-rw-r--r--gdb/gdbserver/linux-ppc-low.c22
-rw-r--r--gdb/gdbserver/linux-s390-low.c22
-rw-r--r--gdb/gdbserver/linux-sh-low.c29
-rw-r--r--gdb/gdbserver/linux-tic6x-low.c29
-rw-r--r--gdb/gdbserver/linux-tile-low.c29
-rw-r--r--gdb/gdbserver/linux-x86-low.c11
-rw-r--r--gdb/gdbserver/linux-xtensa-low.c29
-rw-r--r--gdb/gdbserver/target.h7
16 files changed, 355 insertions, 6 deletions
diff --git a/gdb/gdbserver/ChangeLog b/gdb/gdbserver/ChangeLog
index f48d7f2..4f25205 100644
--- a/gdb/gdbserver/ChangeLog
+++ b/gdb/gdbserver/ChangeLog
@@ -1,5 +1,49 @@
2015-11-30 Antoine Tremblay <antoine.tremblay@ericsson.com>
+ * linux-aarch64-low.c (aarch64_supports_hardware_single_step):
+ New function.
+ (struct linux_target_ops) <supports_hardware_single_step>: Initialize.
+ * linux-arm-low.c (arm_supports_hardware_single_step): New function.
+ (struct linux_target_ops) <supports_hardware_single_step>: Initialize.
+ * linux-bfin-low.c (bfin_supports_hardware_single_step): New function.
+ (struct linux_target_ops) <bfin_supports_hardware_single_step>:
+ Initialize.
+ * linux-crisv32-low.c (cris_supports_hardware_single_step):
+ New function.
+ (struct linux_target_ops) <supports_hardware_single_step>: Initialize.
+ * linux-low.c (can_hardware_single_step): Use
+ supports_hardware_single_step.
+ (can_software_single_step): New function.
+ (start_step_over): Call can_software_single_step.
+ (linux_supports_hardware_single_step): New function.
+ (struct target_ops) <supports_software_single_step>: Initialize.
+ * linux-low.h (struct linux_target_ops)
+ <supports_hardware_single_step>: Initialize.
+ * linux-m32r-low.c (m32r_supports_hardware_single_step): New function.
+ (struct linux_target_ops) <supports_hardware_single_step>: Initialize.
+ * linux-ppc-low.c (ppc_supports_hardware_single_step): New function.
+ (struct linux_target_ops) <supports_hardware_single_step> Initialize.
+ * linux-s390-low.c (s390_supports_hardware_single_step): New function.
+ (struct linux_target_ops) <supports_hardware_single_step>: Initialize.
+ * linux-sh-low.c (sh_supports_hardware_single_step): New function.
+ (struct linux_target_ops) <supports_hardware_single_step>: Initialize.
+ * linux-tic6x-low.c (tic6x_supports_hardware_single_step): New function.
+ (struct linux_target_ops) <tic6x_supports_hardware_single_step>:
+ Initialize.
+ * linux-tile-low.c (tile_supports_hardware_single_step): New function.
+ (struct linux_target_ops) <tile_supports_hardware_single_step>:
+ Initialize.
+ * linux-x86-low.c (x86_supports_hardware_single_step) New function.
+ (struct linux_target_ops) <supports_hardware_single_step>: Initialize.
+ * linux-xtensa-low.c (xtensa_supports_hardware_single_step):
+ New function.
+ (struct linux_target_ops) <supports_hardware_single_step>: Initialize.
+ * target.h (struct target_ops): <supports_software_single_step>:
+ New field.
+ (target_supports_software_single_step): New macro.
+
+2015-11-30 Antoine Tremblay <antoine.tremblay@ericsson.com>
+
* linux-low.c (linux_wait_1): Fix pc advance condition.
* mem-break.c (reinsert_breakpoint_inserted_here): New function.
* mem-break.h (reinsert_breakpoint_inserted_here): New declaration.
diff --git a/gdb/gdbserver/linux-aarch64-low.c b/gdb/gdbserver/linux-aarch64-low.c
index cb78666..17798ff 100644
--- a/gdb/gdbserver/linux-aarch64-low.c
+++ b/gdb/gdbserver/linux-aarch64-low.c
@@ -2944,6 +2944,14 @@ aarch64_sw_breakpoint_from_kind (int kind, int *size)
return aarch64_breakpoint;
}
+/* Support for hardware single step. */
+
+static int
+aarch64_supports_hardware_single_step (void)
+{
+ return 1;
+}
+
struct linux_target_ops the_low_target =
{
aarch64_arch_setup,
@@ -2977,6 +2985,8 @@ struct linux_target_ops the_low_target =
aarch64_emit_ops,
aarch64_get_min_fast_tracepoint_insn_len,
aarch64_supports_range_stepping,
+ NULL, /* breakpoint_kind_from_current_state */
+ aarch64_supports_hardware_single_step,
};
void
diff --git a/gdb/gdbserver/linux-arm-low.c b/gdb/gdbserver/linux-arm-low.c
index 6f37f58..0c78888 100644
--- a/gdb/gdbserver/linux-arm-low.c
+++ b/gdb/gdbserver/linux-arm-low.c
@@ -902,6 +902,14 @@ arm_arch_setup (void)
have_ptrace_getregset = 0;
}
+/* Support for hardware single step. */
+
+static int
+arm_supports_hardware_single_step (void)
+{
+ return 0;
+}
+
/* Register sets without using PTRACE_GETREGSET. */
static struct regset_info arm_regsets[] = {
@@ -1058,7 +1066,8 @@ struct linux_target_ops the_low_target = {
NULL, /* emit_ops */
NULL, /* get_min_fast_tracepoint_insn_len */
NULL, /* supports_range_stepping */
- arm_breakpoint_kind_from_current_state
+ arm_breakpoint_kind_from_current_state,
+ arm_supports_hardware_single_step
};
void
diff --git a/gdb/gdbserver/linux-bfin-low.c b/gdb/gdbserver/linux-bfin-low.c
index d3b83fc..912d253 100644
--- a/gdb/gdbserver/linux-bfin-low.c
+++ b/gdb/gdbserver/linux-bfin-low.c
@@ -105,6 +105,14 @@ bfin_arch_setup (void)
current_process ()->tdesc = tdesc_bfin;
}
+/* Support for hardware single step. */
+
+static int
+bfin_supports_hardware_single_step (void)
+{
+ return 1;
+}
+
static struct usrregs_info bfin_usrregs_info =
{
bfin_num_regs,
@@ -136,6 +144,27 @@ struct linux_target_ops the_low_target = {
NULL, /* breakpoint_reinsert_addr */
2,
bfin_breakpoint_at,
+ NULL, /* supports_z_point_type */
+ NULL, /* insert_point */
+ NULL, /* remove_point */
+ NULL, /* stopped_by_watchpoint */
+ NULL, /* stopped_data_address */
+ NULL, /* collect_ptrace_register */
+ NULL, /* supply_ptrace_register */
+ NULL, /* siginfo_fixup */
+ NULL, /* new_process */
+ NULL, /* new_thread */
+ NULL, /* new_fork */
+ NULL, /* 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 */
+ NULL, /* breakpoint_kind_from_current_state */
+ bfin_supports_hardware_single_step,
};
diff --git a/gdb/gdbserver/linux-crisv32-low.c b/gdb/gdbserver/linux-crisv32-low.c
index 8d9ef04..4f9afa6 100644
--- a/gdb/gdbserver/linux-crisv32-low.c
+++ b/gdb/gdbserver/linux-crisv32-low.c
@@ -388,6 +388,14 @@ cris_arch_setup (void)
current_process ()->tdesc = tdesc_crisv32;
}
+/* Support for hardware single step. */
+
+static int
+cris_supports_hardware_single_step (void)
+{
+ return 1;
+}
+
static struct regset_info cris_regsets[] = {
{ PTRACE_GETREGS, PTRACE_SETREGS, 0, cris_num_regs * 4,
GENERAL_REGS, cris_fill_gregset, cris_store_gregset },
@@ -439,6 +447,22 @@ struct linux_target_ops the_low_target = {
cris_remove_point,
cris_stopped_by_watchpoint,
cris_stopped_data_address,
+ NULL, /* collect_ptrace_register */
+ NULL, /* supply_ptrace_register */
+ NULL, /* siginfo_fixup */
+ NULL, /* new_process */
+ NULL, /* new_thread */
+ NULL, /* new_fork */
+ NULL, /* 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 */
+ NULL, /* breakpoint_kind_from_current_state */
+ cris_supports_hardware_single_step,
};
void
diff --git a/gdb/gdbserver/linux-low.c b/gdb/gdbserver/linux-low.c
index b29f54e..cfc5987 100644
--- a/gdb/gdbserver/linux-low.c
+++ b/gdb/gdbserver/linux-low.c
@@ -269,13 +269,24 @@ static void complete_ongoing_step_over (void);
being stepped. */
ptid_t step_over_bkpt;
-/* True if the low target can hardware single-step. Such targets
- don't need a BREAKPOINT_REINSERT_ADDR callback. */
+/* True if the low target can hardware single-step. */
static int
can_hardware_single_step (void)
{
- return (the_low_target.breakpoint_reinsert_addr == NULL);
+ if (the_low_target.supports_hardware_single_step != NULL)
+ return the_low_target.supports_hardware_single_step ();
+ else
+ return 0;
+}
+
+/* True if the low target can software single-step. Such targets
+ implement the BREAKPOINT_REINSERT_ADDR callback. */
+
+static int
+can_software_single_step (void)
+{
+ return (the_low_target.breakpoint_reinsert_addr != NULL);
}
/* True if the low target supports memory breakpoints. If so, we'll
@@ -4509,12 +4520,17 @@ start_step_over (struct lwp_info *lwp)
{
step = 1;
}
- else
+ else if (can_software_single_step ())
{
CORE_ADDR raddr = (*the_low_target.breakpoint_reinsert_addr) ();
set_reinsert_breakpoint (raddr);
step = 0;
}
+ else
+ {
+ internal_error (__FILE__, __LINE__,
+ "stepping is not implemented on this target");
+ }
current_thread = saved_thread;
@@ -5714,6 +5730,12 @@ linux_supports_hardware_single_step (void)
}
static int
+linux_supports_software_single_step (void)
+{
+ return can_software_single_step ();
+}
+
+static int
linux_stopped_by_watchpoint (void)
{
struct lwp_info *lwp = get_thread_lwp (current_thread);
@@ -7153,7 +7175,8 @@ static struct target_ops linux_target_ops = {
linux_breakpoint_kind_from_pc,
linux_sw_breakpoint_from_kind,
linux_proc_tid_get_name,
- linux_breakpoint_kind_from_current_state
+ linux_breakpoint_kind_from_current_state,
+ linux_supports_software_single_step
};
static void
diff --git a/gdb/gdbserver/linux-low.h b/gdb/gdbserver/linux-low.h
index e2bfeb7..24ea2d3 100644
--- a/gdb/gdbserver/linux-low.h
+++ b/gdb/gdbserver/linux-low.h
@@ -236,6 +236,9 @@ struct linux_target_ops
/* See target.h. */
int (*breakpoint_kind_from_current_state) (CORE_ADDR *pcptr);
+
+ /* See target.h. */
+ int (*supports_hardware_single_step) (void);
};
extern struct linux_target_ops the_low_target;
diff --git a/gdb/gdbserver/linux-m32r-low.c b/gdb/gdbserver/linux-m32r-low.c
index bb1002f..c6d79b6 100644
--- a/gdb/gdbserver/linux-m32r-low.c
+++ b/gdb/gdbserver/linux-m32r-low.c
@@ -103,6 +103,14 @@ m32r_arch_setup (void)
current_process ()->tdesc = tdesc_m32r;
}
+/* Support for hardware single step. */
+
+static int
+m32r_supports_hardware_single_step (void)
+{
+ return 1;
+}
+
static struct usrregs_info m32r_usrregs_info =
{
m32r_num_regs,
@@ -134,6 +142,27 @@ struct linux_target_ops the_low_target = {
NULL,
0,
m32r_breakpoint_at,
+ NULL, /* supports_z_point_type */
+ NULL, /* insert_point */
+ NULL, /* remove_point */
+ NULL, /* stopped_by_watchpoint */
+ NULL, /* stopped_data_address */
+ NULL, /* collect_ptrace_register */
+ NULL, /* supply_ptrace_register */
+ NULL, /* siginfo_fixup */
+ NULL, /* new_process */
+ NULL, /* new_thread */
+ NULL, /* new_fork */
+ NULL, /* 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 */
+ NULL, /* breakpoint_kind_from_current_state */
+ m32r_supports_hardware_single_step,
};
void
diff --git a/gdb/gdbserver/linux-ppc-low.c b/gdb/gdbserver/linux-ppc-low.c
index 995a725..decee86 100644
--- a/gdb/gdbserver/linux-ppc-low.c
+++ b/gdb/gdbserver/linux-ppc-low.c
@@ -547,6 +547,14 @@ ppc_store_evrregset (struct regcache *regcache, const void *buf)
supply_register_by_name (regcache, "spefscr", &regset->spefscr);
}
+/* Support for hardware single step. */
+
+static int
+ppc_supports_hardware_single_step (void)
+{
+ return 1;
+}
+
static struct regset_info ppc_regsets[] = {
/* List the extra register sets before GENERAL_REGS. That way we will
fetch them every time, but still fall back to PTRACE_PEEKUSER for the
@@ -705,6 +713,20 @@ struct linux_target_ops the_low_target = {
NULL,
ppc_collect_ptrace_register,
ppc_supply_ptrace_register,
+ NULL, /* siginfo_fixup */
+ NULL, /* new_process */
+ NULL, /* new_thread */
+ NULL, /* new_fork */
+ NULL, /* 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 */
+ NULL, /* breakpoint_kind_from_current_state */
+ ppc_supports_hardware_single_step,
};
void
diff --git a/gdb/gdbserver/linux-s390-low.c b/gdb/gdbserver/linux-s390-low.c
index efede2d..7127373 100644
--- a/gdb/gdbserver/linux-s390-low.c
+++ b/gdb/gdbserver/linux-s390-low.c
@@ -609,6 +609,14 @@ s390_breakpoint_at (CORE_ADDR pc)
return memcmp (c, s390_breakpoint, s390_breakpoint_len) == 0;
}
+/* Support for hardware single step. */
+
+static int
+s390_supports_hardware_single_step (void)
+{
+ return 1;
+}
+
static struct usrregs_info s390_usrregs_info =
{
s390_num_regs,
@@ -686,6 +694,20 @@ struct linux_target_ops the_low_target = {
NULL,
s390_collect_ptrace_register,
s390_supply_ptrace_register,
+ NULL, /* siginfo_fixup */
+ NULL, /* new_process */
+ NULL, /* new_thread */
+ NULL, /* new_fork */
+ NULL, /* 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 */
+ NULL, /* breakpoint_kind_from_current_state */
+ s390_supports_hardware_single_step,
};
void
diff --git a/gdb/gdbserver/linux-sh-low.c b/gdb/gdbserver/linux-sh-low.c
index 207e87e..1b3189b 100644
--- a/gdb/gdbserver/linux-sh-low.c
+++ b/gdb/gdbserver/linux-sh-low.c
@@ -100,6 +100,14 @@ sh_breakpoint_at (CORE_ADDR where)
return 0;
}
+/* Support for hardware single step. */
+
+static int
+sh_supports_hardware_single_step (void)
+{
+ return 1;
+}
+
/* Provide only a fill function for the general register set. ps_lgetregs
will use this for NPTL support. */
@@ -162,6 +170,27 @@ struct linux_target_ops the_low_target = {
NULL,
0,
sh_breakpoint_at,
+ NULL, /* supports_z_point_type */
+ NULL, /* insert_point */
+ NULL, /* remove_point */
+ NULL, /* stopped_by_watchpoint */
+ NULL, /* stopped_data_address */
+ NULL, /* collect_ptrace_register */
+ NULL, /* supply_ptrace_register */
+ NULL, /* siginfo_fixup */
+ NULL, /* new_process */
+ NULL, /* new_thread */
+ NULL, /* new_fork */
+ NULL, /* 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 */
+ NULL, /* breakpoint_kind_from_current_state */
+ sh_supports_hardware_single_step,
};
void
diff --git a/gdb/gdbserver/linux-tic6x-low.c b/gdb/gdbserver/linux-tic6x-low.c
index cf8b5fb..e4aba15 100644
--- a/gdb/gdbserver/linux-tic6x-low.c
+++ b/gdb/gdbserver/linux-tic6x-low.c
@@ -341,6 +341,14 @@ tic6x_arch_setup (void)
current_process ()->tdesc = tic6x_read_description ();
}
+/* Support for hardware single step. */
+
+static int
+tic6x_supports_hardware_single_step (void)
+{
+ return 1;
+}
+
static struct regsets_info tic6x_regsets_info =
{
tic6x_regsets, /* regsets */
@@ -380,6 +388,27 @@ struct linux_target_ops the_low_target = {
NULL,
0,
tic6x_breakpoint_at,
+ NULL, /* supports_z_point_type */
+ NULL, /* insert_point */
+ NULL, /* remove_point */
+ NULL, /* stopped_by_watchpoint */
+ NULL, /* stopped_data_address */
+ NULL, /* collect_ptrace_register */
+ NULL, /* supply_ptrace_register */
+ NULL, /* siginfo_fixup */
+ NULL, /* new_process */
+ NULL, /* new_thread */
+ NULL, /* new_fork */
+ NULL, /* 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 */
+ NULL, /* breakpoint_kind_from_current_state */
+ tic6x_supports_hardware_single_step,
};
void
diff --git a/gdb/gdbserver/linux-tile-low.c b/gdb/gdbserver/linux-tile-low.c
index 47ca245..6f16355 100644
--- a/gdb/gdbserver/linux-tile-low.c
+++ b/gdb/gdbserver/linux-tile-low.c
@@ -181,6 +181,14 @@ tile_arch_setup (void)
current_process ()->tdesc = tdesc_tilegx;
}
+/* Support for hardware single step. */
+
+static int
+tile_supports_hardware_single_step (void)
+{
+ return 1;
+}
+
struct linux_target_ops the_low_target =
{
@@ -196,6 +204,27 @@ struct linux_target_ops the_low_target =
NULL,
0,
tile_breakpoint_at,
+ NULL, /* supports_z_point_type */
+ NULL, /* insert_point */
+ NULL, /* remove_point */
+ NULL, /* stopped_by_watchpoint */
+ NULL, /* stopped_data_address */
+ NULL, /* collect_ptrace_register */
+ NULL, /* supply_ptrace_register */
+ NULL, /* siginfo_fixup */
+ NULL, /* new_process */
+ NULL, /* new_thread */
+ NULL, /* new_fork */
+ NULL, /* 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 */
+ NULL, /* breakpoint_kind_from_current_state */
+ tile_supports_hardware_single_step,
};
void
diff --git a/gdb/gdbserver/linux-x86-low.c b/gdb/gdbserver/linux-x86-low.c
index 7f07194..18adf5e 100644
--- a/gdb/gdbserver/linux-x86-low.c
+++ b/gdb/gdbserver/linux-x86-low.c
@@ -3264,6 +3264,15 @@ x86_supports_range_stepping (void)
return 1;
}
+/* Implementation of linux_target_ops method "supports_hardware_single_step".
+ */
+
+static int
+x86_supports_hardware_single_step (void)
+{
+ return 1;
+}
+
/* This is initialized assuming an amd64 target.
x86_arch_setup will correct it for i386 or amd64 targets. */
@@ -3304,6 +3313,8 @@ struct linux_target_ops the_low_target =
x86_emit_ops,
x86_get_min_fast_tracepoint_insn_len,
x86_supports_range_stepping,
+ NULL, /* breakpoint_kind_from_current_state */
+ x86_supports_hardware_single_step,
};
void
diff --git a/gdb/gdbserver/linux-xtensa-low.c b/gdb/gdbserver/linux-xtensa-low.c
index 7c71631..b48e8dd 100644
--- a/gdb/gdbserver/linux-xtensa-low.c
+++ b/gdb/gdbserver/linux-xtensa-low.c
@@ -229,6 +229,14 @@ xtensa_arch_setup (void)
current_process ()->tdesc = tdesc_xtensa;
}
+/* Support for hardware single step. */
+
+static int
+xtensa_supports_hardware_single_step (void)
+{
+ return 1;
+}
+
static const struct regs_info *
xtensa_regs_info (void)
{
@@ -248,6 +256,27 @@ struct linux_target_ops the_low_target = {
NULL,
0,
xtensa_breakpoint_at,
+ NULL, /* supports_z_point_type */
+ NULL, /* insert_point */
+ NULL, /* remove_point */
+ NULL, /* stopped_by_watchpoint */
+ NULL, /* stopped_data_address */
+ NULL, /* collect_ptrace_register */
+ NULL, /* supply_ptrace_register */
+ NULL, /* siginfo_fixup */
+ NULL, /* new_process */
+ NULL, /* new_thread */
+ NULL, /* new_fork */
+ NULL, /* 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 */
+ NULL, /* breakpoint_kind_from_current_state */
+ xtensa_supports_hardware_single_step,
};
diff --git a/gdb/gdbserver/target.h b/gdb/gdbserver/target.h
index d3fcb36..9cd07bc 100644
--- a/gdb/gdbserver/target.h
+++ b/gdb/gdbserver/target.h
@@ -463,6 +463,9 @@ struct target_ops
PC. The PCPTR is adjusted to the real memory location in case a flag
(e.g., the Thumb bit on ARM) is present in the PC. */
int (*breakpoint_kind_from_current_state) (CORE_ADDR *pcptr);
+
+ /* Returns true if the target can software single step. */
+ int (*supports_software_single_step) (void);
};
extern struct target_ops *the_target;
@@ -655,6 +658,10 @@ int kill_inferior (int);
? (*the_target->breakpoint_kind_from_current_state) (pcptr) \
: target_breakpoint_kind_from_pc (pcptr))
+#define target_supports_software_single_step() \
+ (the_target->supports_software_single_step ? \
+ (*the_target->supports_software_single_step) () : 0)
+
/* Start non-stop mode, returns 0 on success, -1 on failure. */
int start_non_stop (int nonstop);
generated by cgit v1.1 at 2024-12-20 14:03:28 +0000