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Convert default_child_has_foo functions to process_stratum_target methods 

This patch converts the default_child_has_foo functions to
process_stratum_target methods.  This simplifies "regular"
non-inf_child process_stratum targets, since they no longer have to
override the target_ops::has_foo methods to call the default_child_foo
functions.  A couple targets need to override the new defaults
(corelow and tracefiles), but it still seems like a good tradeoff,
since those are expected to be little different (target doesn't run).

gdb/ChangeLog:
2018-11-30  Pedro Alves  <palves@redhat.com>

	* corelow.c (core_target) <has_all_memory, has_execution>: New
	overrides.
	* inf-child.c (inf_child_target::has_all_memory)
	(inf_child_target::has_memory, inf_child_target::has_stack)
	(inf_child_target::has_registers)
	(inf_child_target::has_execution): Delete.
	* inf-child.h (inf_child_target) <has_all_memory, has_memory,
	has_stack, has_registers, has_execution>: Delete.
	* process-stratum-target.c
	(process_stratum_target::has_all_memory)
	(process_stratum_target::has_memory)
	(process_stratum_target::has_stack)
	(process_stratum_target::has_registers)
	(process_stratum_target::has_execution): New.
	* process-stratum-target.h (process_stratum_target)
	<has_all_memory, has_memory, has_stack, has_registers,
	has_execution>: New method overrides.
	* ravenscar-thread.c (ravenscar_thread_target) <has_all_memory,
	has_memory, has_stack, has_registers, has_execution>: Delete.
	* remote-sim.c (gdbsim_target) <has_stack, has_registers,
	has_execution>: Delete.
	* remote.c (remote_target) <has_all_memory, has_memory, has_stack,
	has_registers, has_execution>: Delete.
	* target.c (default_child_has_all_memory)
	(default_child_has_memory, default_child_has_stack)
	(default_child_has_registers, default_child_has_execution):
	Delete.
	* target.h (default_child_has_all_memory)
	(default_child_has_memory, default_child_has_stack)
	(default_child_has_registers, default_child_has_execution):
	Delete.
	* tracefile.h (tracefile_target) <has_execution>: New override.
This commit is contained in:
Pedro Alves 2018-11-30 14:53:40 +00:00
parent 3b3dac9b3f
commit f3d11a9a96
12 changed files with 83 additions and 121 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

35
gdb/ChangeLog
View File

@ -1,3 +1,38 @@
2018-11-30 Pedro Alves <palves@redhat.com>
* corelow.c (core_target) <has_all_memory, has_execution>: New
overrides.
* inf-child.c (inf_child_target::has_all_memory)
(inf_child_target::has_memory, inf_child_target::has_stack)
(inf_child_target::has_registers)
(inf_child_target::has_execution): Delete.
* inf-child.h (inf_child_target) <has_all_memory, has_memory,
has_stack, has_registers, has_execution>: Delete.
* process-stratum-target.c
(process_stratum_target::has_all_memory)
(process_stratum_target::has_memory)
(process_stratum_target::has_stack)
(process_stratum_target::has_registers)
(process_stratum_target::has_execution): New.
* process-stratum-target.h (process_stratum_target)
<has_all_memory, has_memory, has_stack, has_registers,
has_execution>: New method overrides.
* ravenscar-thread.c (ravenscar_thread_target) <has_all_memory,
has_memory, has_stack, has_registers, has_execution>: Delete.
* remote-sim.c (gdbsim_target) <has_stack, has_registers,
has_execution>: Delete.
* remote.c (remote_target) <has_all_memory, has_memory, has_stack,
has_registers, has_execution>: Delete.
* target.c (default_child_has_all_memory)
(default_child_has_memory, default_child_has_stack)
(default_child_has_registers, default_child_has_execution):
Delete.
* target.h (default_child_has_all_memory)
(default_child_has_memory, default_child_has_stack)
(default_child_has_registers, default_child_has_execution):
Delete.
* tracefile.h (tracefile_target) <has_execution>: New override.
2018-11-30 Pedro Alves <palves@redhat.com>
* Makefile.in (COMMON_SFILES): Add process-stratum-target.c.

3
gdb/corelow.c
View File

@ -90,9 +90,12 @@ public:
const char *thread_name (struct thread_info *) override;
bool has_all_memory () override { return false; }
bool has_memory () override;
bool has_stack () override;
bool has_registers () override;
bool has_execution (ptid_t) override { return false; }
bool info_proc (const char *, enum info_proc_what) override;
/* A few helpers. */

30
gdb/inf-child.c
View File

@ -243,36 +243,6 @@ inf_child_target::pid_to_exec_file (int pid)
return NULL;
}
bool
inf_child_target::has_all_memory ()
{
return default_child_has_all_memory ();
}
bool
inf_child_target::has_memory ()
{
return default_child_has_memory ();
}
bool
inf_child_target::has_stack ()
{
return default_child_has_stack ();
}
bool
inf_child_target::has_registers ()
{
return default_child_has_registers ();
}
bool
inf_child_target::has_execution (ptid_t ptid)
{
return default_child_has_execution (ptid);
}
/* Implementation of to_fileio_open. */
int

6
gdb/inf-child.h
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@ -72,12 +72,6 @@ public:
char *pid_to_exec_file (int pid) override;
bool has_all_memory () override;
bool has_memory () override;
bool has_stack () override;
bool has_registers () override;
bool has_execution (ptid_t) override;
int fileio_open (struct inferior *inf, const char *filename,
int flags, int mode, int warn_if_slow,
int *target_errno) override;

36
gdb/process-stratum-target.c
View File

@ -47,3 +47,39 @@ process_stratum_target::thread_architecture (ptid_t ptid)
gdb_assert (inf != NULL);
return inf->gdbarch;
}
bool
process_stratum_target::has_all_memory ()
{
/* If no inferior selected, then we can't read memory here. */
return inferior_ptid != null_ptid;
}
bool
process_stratum_target::has_memory ()
{
/* If no inferior selected, then we can't read memory here. */
return inferior_ptid != null_ptid;
}
bool
process_stratum_target::has_stack ()
{
/* If no inferior selected, there's no stack. */
return inferior_ptid != null_ptid;
}
bool
process_stratum_target::has_registers ()
{
/* Can't read registers from no inferior. */
return inferior_ptid != null_ptid;
}
bool
process_stratum_target::has_execution (ptid_t the_ptid)
{
/* If there's no thread selected, then we can't make it run through
hoops. */
return the_ptid != null_ptid;
}

8
gdb/process-stratum-target.h
View File

@ -46,6 +46,14 @@ public:
/* This default implementation always returns target_gdbarch (). */
struct gdbarch *thread_architecture (ptid_t ptid) override;
/* Default implementations for process_stratum targets. Return true
if there's a selected inferior, false otherwise. */
bool has_all_memory () override;
bool has_memory () override;
bool has_stack () override;
bool has_registers () override;
bool has_execution (ptid_t the_ptid) override;
};
#endif /* !defined (PROCESS_STRATUM_TARGET_H) */

7
gdb/ravenscar-thread.c
View File

@ -116,13 +116,6 @@ struct ravenscar_thread_target final : public target_ops
ptid_t get_ada_task_ptid (long lwp, long thread) override;
void mourn_inferior () override;
bool has_all_memory () override { return default_child_has_all_memory (); }
bool has_memory () override { return default_child_has_memory (); }
bool has_stack () override { return default_child_has_stack (); }
bool has_registers () override { return default_child_has_registers (); }
bool has_execution (ptid_t ptid) override
{ return default_child_has_execution (ptid); }
};
/* This module's target-specific operations. */

9
gdb/remote-sim.c
View File

@ -128,15 +128,6 @@ struct gdbsim_target final
bool has_all_memory () override;
bool has_memory () override;
bool has_stack () override
{ return default_child_has_stack (); }
bool has_registers () override
{ return default_child_has_registers (); }
bool has_execution (ptid_t ptid) override
{ return default_child_has_execution (ptid); }
};
static struct gdbsim_target gdbsim_ops;

6
gdb/remote.c
View File

@ -525,12 +525,6 @@ public:
CORE_ADDR load_module_addr,
CORE_ADDR offset) override;
bool has_all_memory () override { return default_child_has_all_memory (); }
bool has_memory () override { return default_child_has_memory (); }
bool has_stack () override { return default_child_has_stack (); }
bool has_registers () override { return default_child_has_registers (); }
bool has_execution (ptid_t ptid) override { return default_child_has_execution (ptid); }
bool can_execute_reverse () override;
std::vector<mem_region> memory_map () override;

54
gdb/target.c
View File

@ -186,60 +186,6 @@ target_command (const char *arg, int from_tty)
gdb_stdout);
}
/* Default target_has_* methods for process_stratum targets. */
int
default_child_has_all_memory ()
{
/* If no inferior selected, then we can't read memory here. */
if (inferior_ptid == null_ptid)
return 0;
return 1;
}
int
default_child_has_memory ()
{
/* If no inferior selected, then we can't read memory here. */
if (inferior_ptid == null_ptid)
return 0;
return 1;
}
int
default_child_has_stack ()
{
/* If no inferior selected, there's no stack. */
if (inferior_ptid == null_ptid)
return 0;
return 1;
}
int
default_child_has_registers ()
{
/* Can't read registers from no inferior. */
if (inferior_ptid == null_ptid)
return 0;
return 1;
}
int
default_child_has_execution (ptid_t the_ptid)
{
/* If there's no thread selected, then we can't make it run through
hoops. */
if (the_ptid == null_ptid)
return 0;
return 1;
}
int
target_has_all_memory_1 (void)
{

9
gdb/target.h
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@ -1790,15 +1790,6 @@ extern int target_has_execution_current (void);
#define target_has_execution target_has_execution_current ()
/* Default implementations for process_stratum targets. Return true
if there's a selected inferior, false otherwise. */
extern int default_child_has_all_memory ();
extern int default_child_has_memory ();
extern int default_child_has_stack ();
extern int default_child_has_registers ();
extern int default_child_has_execution (ptid_t the_ptid);
/* Can the target support the debugger control of thread execution?
Can it lock the thread scheduler? */

1
gdb/tracefile.h
View File

@ -127,6 +127,7 @@ public:
bool has_memory () override;
bool has_stack () override;
bool has_registers () override;
bool has_execution (ptid_t) override { return false; }
bool thread_alive (ptid_t ptid) override;
};