2007-08-17 Michael Snyder <msnyder@access-company.com>

[deliverable/binutils-gdb.git] / gdb / inf-ptrace.c

diff --git a/gdb/inf-ptrace.c b/gdb/inf-ptrace.c
index bc3219ebc41c49dab0e18ff042ded7e5fa5f9ba8..c018ab4b0161da2c1583392907978ad2f266be9a 100644 (file)
--- a/gdb/inf-ptrace.c
+++ b/gdb/inf-ptrace.c
@@ -612,7 +612,7 @@ inf_ptrace_target (void)
 
 /* Pointer to a function that returns the offset within the user area
    where a particular register is stored.  */
-static CORE_ADDR (*inf_ptrace_register_u_offset)(int);
+static CORE_ADDR (*inf_ptrace_register_u_offset)(struct gdbarch *, int, int);
 
 /* Fetch register REGNUM from the inferior.  */
 
@@ -624,7 +624,10 @@ inf_ptrace_fetch_register (struct regcache *regcache, int regnum)
   PTRACE_TYPE_RET *buf;
   int pid, i;
 
-  if (CANNOT_FETCH_REGISTER (regnum))
+  /* This isn't really an address, but ptrace thinks of it as one.  */
+  addr = inf_ptrace_register_u_offset (current_gdbarch, regnum, 0);
+  if (addr == (CORE_ADDR)-1
+      || gdbarch_cannot_fetch_register (current_gdbarch, regnum))
     {
       regcache_raw_supply (regcache, regnum, NULL);
       return;
@@ -636,10 +639,7 @@ inf_ptrace_fetch_register (struct regcache *regcache, int regnum)
   if (pid == 0)
     pid = ptid_get_pid (inferior_ptid);
 
-  /* This isn't really an address, but ptrace thinks of it as one.  */
-  addr = inf_ptrace_register_u_offset (regnum);
   size = register_size (current_gdbarch, regnum);
-
   gdb_assert ((size % sizeof (PTRACE_TYPE_RET)) == 0);
   buf = alloca (size);
 
@@ -650,7 +650,8 @@ inf_ptrace_fetch_register (struct regcache *regcache, int regnum)
       buf[i] = ptrace (PT_READ_U, pid, (PTRACE_TYPE_ARG3)(uintptr_t)addr, 0);
       if (errno != 0)
        error (_("Couldn't read register %s (#%d): %s."),
-              REGISTER_NAME (regnum), regnum, safe_strerror (errno));
+              gdbarch_register_name (current_gdbarch, regnum),
+              regnum, safe_strerror (errno));
 
       addr += sizeof (PTRACE_TYPE_RET);
     }
@@ -664,7 +665,7 @@ static void
 inf_ptrace_fetch_registers (struct regcache *regcache, int regnum)
 {
   if (regnum == -1)
-    for (regnum = 0; regnum < NUM_REGS; regnum++)
+    for (regnum = 0; regnum < gdbarch_num_regs (current_gdbarch); regnum++)
       inf_ptrace_fetch_register (regcache, regnum);
   else
     inf_ptrace_fetch_register (regcache, regnum);
@@ -680,7 +681,10 @@ inf_ptrace_store_register (const struct regcache *regcache, int regnum)
   PTRACE_TYPE_RET *buf;
   int pid, i;
 
-  if (CANNOT_STORE_REGISTER (regnum))
+  /* This isn't really an address, but ptrace thinks of it as one.  */
+  addr = inf_ptrace_register_u_offset (current_gdbarch, regnum, 1);
+  if (addr == (CORE_ADDR)-1 
+      || gdbarch_cannot_store_register (current_gdbarch, regnum))
     return;
 
   /* Cater for systems like GNU/Linux, that implement threads as
@@ -689,10 +693,7 @@ inf_ptrace_store_register (const struct regcache *regcache, int regnum)
   if (pid == 0)
     pid = ptid_get_pid (inferior_ptid);
 
-  /* This isn't really an address, but ptrace thinks of it as one.  */
-  addr = inf_ptrace_register_u_offset (regnum);
   size = register_size (current_gdbarch, regnum);
-
   gdb_assert ((size % sizeof (PTRACE_TYPE_RET)) == 0);
   buf = alloca (size);
 
@@ -704,7 +705,8 @@ inf_ptrace_store_register (const struct regcache *regcache, int regnum)
       ptrace (PT_WRITE_U, pid, (PTRACE_TYPE_ARG3)(uintptr_t)addr, buf[i]);
       if (errno != 0)
        error (_("Couldn't write register %s (#%d): %s."),
-              REGISTER_NAME (regnum), regnum, safe_strerror (errno));
+              gdbarch_register_name (current_gdbarch, regnum),
+              regnum, safe_strerror (errno));
 
       addr += sizeof (PTRACE_TYPE_RET);
     }
@@ -717,7 +719,7 @@ void
 inf_ptrace_store_registers (struct regcache *regcache, int regnum)
 {
   if (regnum == -1)
-    for (regnum = 0; regnum < NUM_REGS; regnum++)
+    for (regnum = 0; regnum < gdbarch_num_regs (current_gdbarch); regnum++)
       inf_ptrace_store_register (regcache, regnum);
   else
     inf_ptrace_store_register (regcache, regnum);
@@ -728,7 +730,8 @@ inf_ptrace_store_registers (struct regcache *regcache, int regnum)
    particular register is stored.  */
 
 struct target_ops *
-inf_ptrace_trad_target (CORE_ADDR (*register_u_offset)(int))
+inf_ptrace_trad_target (CORE_ADDR (*register_u_offset)
+                                       (struct gdbarch *, int, int))
 {
   struct target_ops *t = inf_ptrace_target();