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[commit] localize address to/from host pointer
- From: Andrew Cagney <ac131313 at redhat dot com>
- To: gdb-patches at sources dot redhat dot com
- Date: Sat, 01 Feb 2003 18:35:18 -0500
- Subject: [commit] localize address to/from host pointer
Hello,
This patch makes the nasty address_to_host_pointer() and
host_pointer_to_address() methods static. The HP/UX ones should be
deleted. Not sure about the procfs ones.
Andrew
2003-02-01 Andrew Cagney <ac131313@redhat.com>
* defs.h (host_pointer_to_address): Delete declaration.
(address_to_host_pointer): Delete declaration.
* utils.c (host_pointer_to_address): Delete function.
(address_to_host_pointer): Delete function.
* procfs.c (procfs_address_to_host_pointer): New function.
* procfs.c (proc_set_watchpoint): Use.
(procfs_can_use_hw_breakpoint): Update comments.
* somsolib.c (hpux_address_to_host_pointer_hack): New function.
(som_solib_add): Use.
* hppa-tdep.c (hppa_pointer_to_address_hack): New function.
* hppa-tdep.c (unwind_command): Use.
Index: defs.h
===================================================================
RCS file: /cvs/src/src/gdb/defs.h,v
retrieving revision 1.110
diff -u -r1.110 defs.h
--- defs.h 23 Jan 2003 23:03:31 -0000 1.110
+++ defs.h 1 Feb 2003 23:20:45 -0000
@@ -374,9 +374,6 @@
extern void init_page_info (void);
-extern CORE_ADDR host_pointer_to_address (void *ptr);
-extern void *address_to_host_pointer (CORE_ADDR addr);
-
extern char *gdb_realpath (const char *);
extern char *xfullpath (const char *);
Index: hppa-tdep.c
===================================================================
RCS file: /cvs/src/src/gdb/hppa-tdep.c,v
retrieving revision 1.47
diff -u -r1.47 hppa-tdep.c
--- hppa-tdep.c 18 Jan 2003 15:55:52 -0000 1.47
+++ hppa-tdep.c 1 Feb 2003 23:21:04 -0000
@@ -4555,6 +4555,16 @@
return ¤t_ex_event;
}
+/* Instead of this nasty cast, add a method pvoid() that prints out a
+ host VOID data type (remember %p isn't portable). */
+
+static CORE_ADDR
+hppa_pointer_to_address_hack (void *ptr)
+{
+ gdb_assert (sizeof (ptr) == TYPE_LENGTH (builtin_type_void_data_ptr));
+ return POINTER_TO_ADDRESS (builtin_type_void_data_ptr, &ptr);
+}
+
static void
unwind_command (char *exp, int from_tty)
{
@@ -4577,7 +4587,7 @@
}
printf_unfiltered ("unwind_table_entry (0x%s):\n",
- paddr_nz (host_pointer_to_address (u)));
+ paddr_nz (hppa_pointer_to_address_hack (u)));
printf_unfiltered ("\tregion_start = ");
print_address (u->region_start, gdb_stdout);
Index: procfs.c
===================================================================
RCS file: /cvs/src/src/gdb/procfs.c,v
retrieving revision 1.41
diff -u -r1.41 procfs.c
--- procfs.c 11 Sep 2002 00:13:58 -0000 1.41
+++ procfs.c 1 Feb 2003 23:21:12 -0000
@@ -2841,6 +2841,19 @@
}
+/* Convert a target address (a.k.a. CORE_ADDR) into a host address
+ (a.k.a void pointer)! */
+
+static void *
+procfs_address_to_host_pointer (CORE_ADDR addr)
+{
+ void *ptr;
+
+ gdb_assert (sizeof (ptr) == TYPE_LENGTH (builtin_type_void_data_ptr));
+ ADDRESS_TO_POINTER (builtin_type_void_data_ptr, &ptr, addr);
+ return ptr;
+}
+
/*
* Function: proc_set_watchpoint
*
@@ -2863,10 +2876,13 @@
prwatch_t *pwatch;
pwatch = (prwatch_t *) &arg.watch;
+ /* NOTE: cagney/2003-02-01: Even more horrible hack. Need to
+ convert a target address into something that can be stored in a
+ native data structure. */
#ifdef PCAGENT /* Horrible hack: only defined on Solaris 2.6+ */
- pwatch->pr_vaddr = (uintptr_t) address_to_host_pointer (addr);
+ pwatch->pr_vaddr = (uintptr_t) procfs_address_to_host_pointer (addr);
#else
- pwatch->pr_vaddr = (caddr_t) address_to_host_pointer (addr);
+ pwatch->pr_vaddr = (caddr_t) procfs_address_to_host_pointer (addr);
#endif
pwatch->pr_size = len;
pwatch->pr_wflags = wflags;
@@ -5163,10 +5179,11 @@
/* Due to the way that proc_set_watchpoint() is implemented, host
and target pointers must be of the same size. If they are not,
we can't use hardware watchpoints. This limitation is due to the
- fact that proc_set_watchpoint() calls address_to_host_pointer();
- a close inspection of address_to_host_pointer will reveal that
- an internal error will be generated when the host and target
- pointer sizes are different. */
+ fact that proc_set_watchpoint() calls
+ procfs_address_to_host_pointer(); a close inspection of
+ procfs_address_to_host_pointer will reveal that an internal error
+ will be generated when the host and target pointer sizes are
+ different. */
if (sizeof (void *) != TYPE_LENGTH (builtin_type_void_data_ptr))
return 0;
Index: somsolib.c
===================================================================
RCS file: /cvs/src/src/gdb/somsolib.c,v
retrieving revision 1.22
diff -u -r1.22 somsolib.c
--- somsolib.c 14 Jan 2003 00:49:04 -0000 1.22
+++ somsolib.c 1 Feb 2003 23:21:18 -0000
@@ -401,6 +401,21 @@
}
+/* FIXME: cagney/2003-02-01: This just isn't right. Given an address
+ within the target's address space, this converts the value into an
+ address within the host's (i.e., GDB's) address space. Given that
+ the host/target address spaces are separate, this can't be right. */
+
+static void *
+hpux_address_to_host_pointer_hack (CORE_ADDR addr)
+{
+ void *ptr;
+
+ gdb_assert (sizeof (ptr) == TYPE_LENGTH (builtin_type_void_data_ptr));
+ ADDRESS_TO_POINTER (builtin_type_void_data_ptr, &ptr, addr);
+ return ptr;
+}
+
/* Add symbols from shared libraries into the symtab list, unless the
size threshold specified by auto_solib_limit (in megabytes) would
be exceeded. */
@@ -715,8 +730,10 @@
if (status != 0)
goto err;
+ /* FIXME: cagney/2003-02-01: I think som_solib.next should be a
+ CORE_ADDR. */
new_so->som_solib.next =
- address_to_host_pointer (extract_unsigned_integer (buf, 4));
+ hpux_address_to_host_pointer_hack (extract_unsigned_integer (buf, 4));
/* Note that we don't re-set "addr" to the next pointer
* until after we've read the trailing data.
Index: utils.c
===================================================================
RCS file: /cvs/src/src/gdb/utils.c,v
retrieving revision 1.92
diff -u -r1.92 utils.c
--- utils.c 31 Jan 2003 23:22:07 -0000 1.92
+++ utils.c 1 Feb 2003 23:21:50 -0000
@@ -2602,25 +2602,6 @@
}
-/* Convert to / from the hosts pointer to GDB's internal CORE_ADDR
- using the target's conversion routines. */
-CORE_ADDR
-host_pointer_to_address (void *ptr)
-{
- gdb_assert (sizeof (ptr) == TYPE_LENGTH (builtin_type_void_data_ptr));
- return POINTER_TO_ADDRESS (builtin_type_void_data_ptr, &ptr);
-}
-
-void *
-address_to_host_pointer (CORE_ADDR addr)
-{
- void *ptr;
-
- gdb_assert (sizeof (ptr) == TYPE_LENGTH (builtin_type_void_data_ptr));
- ADDRESS_TO_POINTER (builtin_type_void_data_ptr, &ptr, addr);
- return ptr;
-}
-
/* Convert a CORE_ADDR into a string. */
const char *
core_addr_to_string (const CORE_ADDR addr)