* inftarg.c (child_thread_alive): New function to see if a

[deliverable/binutils-gdb.git] / gdb / mips-nat.c

diff --git a/gdb/mips-nat.c b/gdb/mips-nat.c
index a4c46694995dae1e1105be0f4ba11e4de0f31b64..4d1b4a00c45ad1047a817c08c781b7d077106564 100644 (file)
--- a/gdb/mips-nat.c
+++ b/gdb/mips-nat.c
@@ -1,5 +1,5 @@
 /* Low level DECstation interface to ptrace, for GDB when running native.
-   Copyright 1988, 1989, 1991, 1992 Free Software Foundation, Inc.
+   Copyright 1988, 1989, 1991, 1992, 1995 Free Software Foundation, Inc.
    Contributed by Alessandro Forin(af@cs.cmu.edu) at CMU
    and by Per Bothner(bothner@cs.wisc.edu) at U.Wisconsin.
 
@@ -59,7 +59,7 @@ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.  */
   : regno >= FP0_REGNUM ?      FPR_BASE + (regno - FP0_REGNUM) \
   : 0)
 
-static const char zerobuf[MAX_REGISTER_RAW_SIZE];
+static char zerobuf[MAX_REGISTER_RAW_SIZE] = {0};
 
 /* Get all registers from the inferior */
 
@@ -101,11 +101,13 @@ store_inferior_registers (regno)
   register unsigned int regaddr;
   char buf[80];
 
-  if (regno == 0)
-    return;
-
   if (regno > 0)
     {
+      if (regno == ZERO_REGNUM || regno == PS_REGNUM
+         || regno == BADVADDR_REGNUM || regno == CAUSE_REGNUM
+         || regno == FCRIR_REGNUM || regno == FP_REGNUM
+         || (regno >= FIRST_EMBED_REGNUM && regno <= LAST_EMBED_REGNUM))
+       return;
       regaddr = REGISTER_PTRACE_ADDR (regno);
       errno = 0;
       ptrace (PT_WRITE_U, inferior_pid, (PTRACE_ARG3_TYPE) regaddr,
@@ -119,22 +121,7 @@ store_inferior_registers (regno)
   else
     {
       for (regno = 0; regno < NUM_REGS; regno++)
-       {
-         if (regno == ZERO_REGNUM || regno == PS_REGNUM
-             || regno == BADVADDR_REGNUM || regno == CAUSE_REGNUM
-             || regno == FCRIR_REGNUM || regno == FP_REGNUM
-             || (regno >= FIRST_EMBED_REGNUM && regno <= LAST_EMBED_REGNUM))
-           continue;
-         regaddr = register_addr (regno, 1);
-         errno = 0;
-         ptrace (6, inferior_pid, (PTRACE_ARG3_TYPE) regaddr,
-                 read_register (regno));
-         if (errno != 0)
-           {
-             sprintf (buf, "writing all regs, number %d", regno);
-             perror_with_name (buf);
-           }
-       }
+       store_inferior_registers (regno);
     }
 }
 
@@ -149,14 +136,15 @@ get_longjmp_target(pc)
      CORE_ADDR *pc;
 {
   CORE_ADDR jb_addr;
+  char buf[TARGET_PTR_BIT / TARGET_CHAR_BIT];
 
-  jb_addr = read_register(A0_REGNUM);
+  jb_addr = read_register (A0_REGNUM);
 
-  if (target_read_memory(jb_addr + JB_PC * JB_ELEMENT_SIZE, pc,
-                        sizeof(CORE_ADDR)))
+  if (target_read_memory (jb_addr + JB_PC * JB_ELEMENT_SIZE, buf,
+                         TARGET_PTR_BIT / TARGET_CHAR_BIT))
     return 0;
 
-  SWAP_TARGET_AND_HOST(pc, sizeof(CORE_ADDR));
+  *pc = extract_address (buf, TARGET_PTR_BIT / TARGET_CHAR_BIT);
 
   return 1;
 }
@@ -193,7 +181,11 @@ fetch_core_registers (core_reg_sect, core_reg_size, which, reg_addr)
      core file without a upage, reg_ptr will be zero and this is all a big
      NOP.  */
   if (reg_ptr > core_reg_size)
+#ifdef KERNEL_U_ADDR
     reg_ptr -= KERNEL_U_ADDR;
+#else
+    error ("Old mips core file can't be processed on this machine.");
+#endif
 
   for (regno = 0; regno < NUM_REGS; regno++)
     {