X-Git-Url: https://git.libre-soc.org/?a=blobdiff_plain;f=gdb%2Fmips-tdep.c;h=727620986b19c299492b9fa944ee834c30e8900f;hb=e5ab0dce47238bc3fc006b9a9aa69ee626bd7254;hp=4009ca542abd8a556a42feb02e6372a87adb10d5;hpb=a4b8ebc89d2cbe6be8b4fe808e0d4c9ac2556a51;p=binutils-gdb.git

diff --git a/gdb/mips-tdep.c b/gdb/mips-tdep.c
index 4009ca542ab..727620986b1 100644
--- a/gdb/mips-tdep.c
+++ b/gdb/mips-tdep.c
@@ -50,6 +50,7 @@
 #include "sim-regno.h"
 
 static void set_reg_offset (CORE_ADDR *saved_regs, int regnum, CORE_ADDR off);
+static struct type *mips_register_type (struct gdbarch *gdbarch, int regnum);
 
 /* A useful bit in the CP0 status register (PS_REGNUM).  */
 /* This bit is set if we are emulating 32-bit FPRs on a 64-bit chip.  */
@@ -670,7 +671,7 @@ mips_register_raw_size (int regnum)
       /* For the moment map [NUM_REGS .. 2*NUM_REGS) onto the same raw
 	 registers, but always return the virtual size.  */
       int rawnum = regnum % NUM_REGS;
-      return TYPE_LENGTH (MIPS_REGISTER_TYPE (rawnum));
+      return TYPE_LENGTH (gdbarch_register_type (current_gdbarch, rawnum));
     }
   else
     internal_error (__FILE__, __LINE__, "Register %d out of range", regnum);
@@ -700,7 +701,8 @@ mips_register_byte (int regnum)
       /* Add space for all the proceeding registers based on their
          real size.  */
       for (reg = NUM_REGS; reg < regnum; reg++)
-	byte += TYPE_LENGTH (MIPS_REGISTER_TYPE ((reg % NUM_REGS)));
+	byte += TYPE_LENGTH (gdbarch_register_type (current_gdbarch,
+                                                    (reg % NUM_REGS)));
       return byte;
     }
   else
@@ -4284,10 +4286,10 @@ print_gp_register_row (struct ui_file *file, struct frame_info *frame,
       col++;
     }
   /* print the R0 to R31 names */
-  fprintf_filtered (file,
-		    (start_regnum % NUM_REGS) < MIPS_NUMREGS
-		    ? "\n R%-4d" : "\n      ",
-		    start_regnum);
+  if ((start_regnum % NUM_REGS) < MIPS_NUMREGS)
+    fprintf_filtered (file, "\n R%-4d", start_regnum % NUM_REGS);
+  else
+    fprintf_filtered (file, "\n      ");
 
   /* now print the values in hex, 4 or 8 to the row */
   for (col = 0, regnum = start_regnum;
@@ -5256,6 +5258,7 @@ reinit_frame_cache_sfunc (char *args, int from_tty,
 int
 gdb_print_insn_mips (bfd_vma memaddr, disassemble_info *info)
 {
+  struct gdbarch_tdep *tdep = gdbarch_tdep (current_gdbarch);
   mips_extra_func_info_t proc_desc;
 
   /* Search for the function containing this address.  Set the low bit
@@ -5270,16 +5273,44 @@ gdb_print_insn_mips (bfd_vma memaddr, disassemble_info *info)
      the procedure descriptor exists and the address therein is odd,
      it's definitely a 16-bit function.  Otherwise, we have to just
      guess that if the address passed in is odd, it's 16-bits.  */
+  /* FIXME: cagney/2003-06-26: Is this even necessary?  The
+     disassembler needs to be able to locally determine the ISA, and
+     not rely on GDB.  Otherwize the stand-alone 'objdump -d' will not
+     work.  */
   if (proc_desc)
-    info->mach = pc_is_mips16 (PROC_LOW_ADDR (proc_desc)) ?
-      bfd_mach_mips16 : 0;
+    {
+      if (pc_is_mips16 (PROC_LOW_ADDR (proc_desc)))
+	info->mach =  bfd_mach_mips16;
+    }
   else
-    info->mach = pc_is_mips16 (memaddr) ?
-      bfd_mach_mips16 : 0;
+    {
+      if (pc_is_mips16 (memaddr))
+       info->mach = bfd_mach_mips16;
+    } 
 
   /* Round down the instruction address to the appropriate boundary.  */
   memaddr &= (info->mach == bfd_mach_mips16 ? ~1 : ~3);
 
+  /* Set the disassembler options.  */
+  if (tdep->mips_abi == MIPS_ABI_N32
+      || tdep->mips_abi == MIPS_ABI_N64)
+    {
+      /* Set up the disassembler info, so that we get the right
+	 register names from libopcodes.  */
+      if (tdep->mips_abi == MIPS_ABI_N32)
+	info->disassembler_options = "gpr-names=n32";
+      else
+	info->disassembler_options = "gpr-names=64";
+      info->flavour = bfd_target_elf_flavour;
+    }
+  else
+    /* This string is not recognized explicitly by the disassembler,
+       but it tells the disassembler to not try to guess the ABI from
+       the bfd elf headers, such that, if the user overrides the ABI
+       of a program linked as NewABI, the disassembly will follow the
+       register naming conventions specified by the user.  */
+    info->disassembler_options = "gpr-names=32";
+
   /* Call the appropriate disassembler based on the target endian-ness.  */
   if (TARGET_BYTE_ORDER == BFD_ENDIAN_BIG)
     return print_insn_big_mips (memaddr, info);
@@ -5530,25 +5561,6 @@ mips_ignore_helper (CORE_ADDR pc)
 }
 
 
-/* Return a location where we can set a breakpoint that will be hit
-   when an inferior function call returns.  This is normally the
-   program's entry point.  Executables that don't have an entry
-   point (e.g. programs in ROM) should define a symbol __CALL_DUMMY_ADDRESS
-   whose address is the location where the breakpoint should be placed.  */
-
-static CORE_ADDR
-mips_call_dummy_address (void)
-{
-  struct minimal_symbol *sym;
-
-  sym = lookup_minimal_symbol ("__CALL_DUMMY_ADDRESS", NULL, NULL);
-  if (sym)
-    return SYMBOL_VALUE_ADDRESS (sym);
-  else
-    return entry_point_address ();
-}
-
-
 /* When debugging a 64 MIPS target running a 32 bit ABI, the size of
    the register stored on the stack (32) is different to its real raw
    size (64).  The below ensures that registers are fetched from the
@@ -5735,12 +5747,6 @@ mips_gdbarch_init (struct gdbarch_info info,
   enum mips_abi mips_abi, found_abi, wanted_abi;
   int num_regs;
 
-  /* Reset the disassembly info, in case it was set to something
-     non-default.  */
-  deprecated_tm_print_insn_info.flavour = bfd_target_unknown_flavour;
-  deprecated_tm_print_insn_info.arch = bfd_arch_unknown;
-  deprecated_tm_print_insn_info.mach = 0;
-
   elf_flags = 0;
 
   if (info.abfd)
@@ -5820,34 +5826,6 @@ mips_gdbarch_init (struct gdbarch_info info,
   if (wanted_abi != MIPS_ABI_UNKNOWN)
     mips_abi = wanted_abi;
 
-  /* We have to set deprecated_tm_print_insn_info before looking for a
-     pre-existing architecture, otherwise we may return before we get
-     a chance to set it up.  */
-  if (mips_abi == MIPS_ABI_N32 || mips_abi == MIPS_ABI_N64)
-    {
-      /* Set up the disassembler info, so that we get the right
-	 register names from libopcodes.  */
-      if (mips_abi == MIPS_ABI_N32)
-	deprecated_tm_print_insn_info.disassembler_options = "gpr-names=n32";
-      else
-	deprecated_tm_print_insn_info.disassembler_options = "gpr-names=64";
-      deprecated_tm_print_insn_info.flavour = bfd_target_elf_flavour;
-      deprecated_tm_print_insn_info.arch = bfd_arch_mips;
-      if (info.bfd_arch_info != NULL
-	  && info.bfd_arch_info->arch == bfd_arch_mips
-	  && info.bfd_arch_info->mach)
-	deprecated_tm_print_insn_info.mach = info.bfd_arch_info->mach;
-      else
-	deprecated_tm_print_insn_info.mach = bfd_mach_mips8000;
-    }
-  else
-    /* This string is not recognized explicitly by the disassembler,
-       but it tells the disassembler to not try to guess the ABI from
-       the bfd elf headers, such that, if the user overrides the ABI
-       of a program linked as NewABI, the disassembly will follow the
-       register naming conventions specified by the user.  */
-    deprecated_tm_print_insn_info.disassembler_options = "gpr-names=32";
-
   if (gdbarch_debug)
     {
       fprintf_unfiltered (gdb_stdlog,
@@ -6103,7 +6081,10 @@ mips_gdbarch_init (struct gdbarch_info info,
 
   /* MIPS version of CALL_DUMMY */
 
-  set_gdbarch_call_dummy_address (gdbarch, mips_call_dummy_address);
+  /* NOTE: cagney/2003-08-05: Eventually call dummy location will be
+     replaced by a command, and all targets will default to on stack
+     (regardless of the stack's execute status).  */
+  set_gdbarch_call_dummy_location (gdbarch, AT_SYMBOL);
   set_gdbarch_deprecated_pop_frame (gdbarch, mips_pop_frame);
   set_gdbarch_frame_align (gdbarch, mips_frame_align);
   set_gdbarch_deprecated_save_dummy_frame_tos (gdbarch, generic_save_dummy_frame_tos);
@@ -6137,6 +6118,8 @@ mips_gdbarch_init (struct gdbarch_info info,
   set_gdbarch_print_registers_info (gdbarch, mips_print_registers_info);
   set_gdbarch_pc_in_sigtramp (gdbarch, mips_pc_in_sigtramp);
 
+  set_gdbarch_print_insn (gdbarch, gdb_print_insn_mips);
+
   /* Hook in OS ABI-specific overrides, if they have been registered.  */
   gdbarch_init_osabi (info, gdbarch);
 
@@ -6551,8 +6534,6 @@ _initialize_mips_tdep (void)
     internal_error (__FILE__, __LINE__, "mips_abi_strings out of sync");
 
   gdbarch_register (bfd_arch_mips, mips_gdbarch_init, mips_dump_tdep);
-  if (!deprecated_tm_print_insn)	 /* Someone may have already set it */
-    deprecated_tm_print_insn = gdb_print_insn_mips;
 
   /* Add root prefix command for all "set mips"/"show mips" commands */
   add_prefix_cmd ("mips", no_class, set_mips_command,