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Eliminate procfs.c:procfs_use_watchpoints 

Now that procfs.c is only ever used by Solaris, and, both x86 and
SPARC Solaris support watchpoints (*), we don't need the separate
procfs_use_watchpoints function.  Getting rid of it simplifies
C++ification of target_ops.

(*) and I assume that any other Solaris port would use the same kernel
debug API interfaces for watchpoints.  Otherwise, we can worry about
it if it ever happens.

gdb/ChangeLog:
2018-05-02  Pedro Alves  <palves@redhat.com>

	* procfs.c (procfs_stopped_by_watchpoint)
	(procfs_insert_watchpoint, procfs_remove_watchpoint)
	(procfs_region_ok_for_hw_watchpoint, procfs_stopped_data_address):
	Forward declare.
	(procfs_use_watchpoints): Delete, move contents...
	(procfs_target): ... here.
	* procfs.h (procfs_use_watchpoints): Delete declaration.
	* i386-sol2-nat.c (_initialize_amd64_sol2_nat): Don't call
	procfs_use_watchpoints.
	* sparc-sol2-nat.c (_initialize_sparc_sol2_nat): Don't call
	procfs_use_watchpoints.
This commit is contained in:
Pedro Alves 2018-05-03 00:37:07 +01:00
parent 77d3c63b0d
commit b5c8fcb1b4
5 changed files with 37 additions and 20 deletions
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14
gdb/ChangeLog
View File

@ -1,3 +1,17 @@
2018-05-02 Pedro Alves <palves@redhat.com>
* procfs.c (procfs_stopped_by_watchpoint)
(procfs_insert_watchpoint, procfs_remove_watchpoint)
(procfs_region_ok_for_hw_watchpoint, procfs_stopped_data_address):
Forward declare.
(procfs_use_watchpoints): Delete, move contents...
(procfs_target): ... here.
* procfs.h (procfs_use_watchpoints): Delete declaration.
* i386-sol2-nat.c (_initialize_amd64_sol2_nat): Don't call
procfs_use_watchpoints.
* sparc-sol2-nat.c (_initialize_sparc_sol2_nat): Don't call
procfs_use_watchpoints.
2018-05-02 Tom Tromey <tom@tromey.com>
PR python/20084:

2
gdb/i386-sol2-nat.c
View File

@ -138,8 +138,6 @@ _initialize_amd64_sol2_nat (void)
/* Fill in the generic procfs methods. */
t = procfs_target ();
procfs_use_watchpoints (t);
#if defined (PR_MODEL_NATIVE) && (PR_MODEL_NATIVE == PR_MODEL_LP64)
amd64_native_gregset32_reg_offset = amd64_sol2_gregset32_reg_offset;
amd64_native_gregset32_num_regs =

34
gdb/procfs.c
View File

@ -126,6 +126,22 @@ static int procfs_can_use_hw_breakpoint (struct target_ops *self,
static void procfs_info_proc (struct target_ops *, const char *,
enum info_proc_what);
static int procfs_stopped_by_watchpoint (struct target_ops *);
static int procfs_insert_watchpoint (struct target_ops *,
CORE_ADDR, int,
enum target_hw_bp_type,
struct expression *);
static int procfs_remove_watchpoint (struct target_ops *,
CORE_ADDR, int,
enum target_hw_bp_type,
struct expression *);
static int procfs_region_ok_for_hw_watchpoint (struct target_ops *,
CORE_ADDR, int);
static int procfs_stopped_data_address (struct target_ops *, CORE_ADDR *);
#if defined (PR_MODEL_NATIVE) && (PR_MODEL_NATIVE == PR_MODEL_LP64)
/* When GDB is built as 64-bit application on Solaris, the auxv data
is presented in 64-bit format. We need to provide a custom parser
@ -186,6 +202,13 @@ procfs_target (void)
t->to_auxv_parse = procfs_auxv_parse;
#endif
t->to_stopped_by_watchpoint = procfs_stopped_by_watchpoint;
t->to_insert_watchpoint = procfs_insert_watchpoint;
t->to_remove_watchpoint = procfs_remove_watchpoint;
t->to_region_ok_for_hw_watchpoint = procfs_region_ok_for_hw_watchpoint;
t->to_can_use_hw_breakpoint = procfs_can_use_hw_breakpoint;
t->to_stopped_data_address = procfs_stopped_data_address;
t->to_magic = OPS_MAGIC;
return t;
@ -3385,17 +3408,6 @@ procfs_region_ok_for_hw_watchpoint (struct target_ops *self,
return 1;
}
void
procfs_use_watchpoints (struct target_ops *t)
{
t->to_stopped_by_watchpoint = procfs_stopped_by_watchpoint;
t->to_insert_watchpoint = procfs_insert_watchpoint;
t->to_remove_watchpoint = procfs_remove_watchpoint;
t->to_region_ok_for_hw_watchpoint = procfs_region_ok_for_hw_watchpoint;
t->to_can_use_hw_breakpoint = procfs_can_use_hw_breakpoint;
t->to_stopped_data_address = procfs_stopped_data_address;
}
/* Memory Mappings Functions: */
/* Call a callback function once for each mapping, passing it the

6
gdb/procfs.h
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@ -24,12 +24,6 @@ struct target_ops;
extern struct target_ops *procfs_target (void);
/* Call this in the native _initialize routine that creates and
customizes the prototype target returned by procfs_target, if the
native debug interface supports procfs watchpoints. */
extern void procfs_use_watchpoints (struct target_ops *t);
/* Return a ptid for which we guarantee we will be able to find a
'live' procinfo. */

1
gdb/sparc-sol2-nat.c
View File

@ -104,6 +104,5 @@ _initialize_sparc_sol2_nat (void)
struct target_ops *t;
t = procfs_target ();
procfs_use_watchpoints (t);
add_target (t);
}