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Diffstat (limited to 'gdb/mn10300-tdep.c')
-rw-r--r--gdb/mn10300-tdep.c147
1 files changed, 109 insertions, 38 deletions
diff --git a/gdb/mn10300-tdep.c b/gdb/mn10300-tdep.c
index a30b56c..3ad0fd2 100644
--- a/gdb/mn10300-tdep.c
+++ b/gdb/mn10300-tdep.c
@@ -1,5 +1,5 @@
/* Target-dependent code for the Matsushita MN10300 for GDB, the GNU debugger.
- Copyright 1996, 1997, 1998 Free Software Foundation, Inc.
+ Copyright 1996, 1997, 1998, 2000 Free Software Foundation, Inc.
This file is part of GDB.
@@ -33,6 +33,13 @@ extern void _initialize_mn10300_tdep (void);
static CORE_ADDR mn10300_analyze_prologue (struct frame_info *fi,
CORE_ADDR pc);
+/* mn10300 private data */
+struct gdbarch_tdep
+{
+ int am33_mode;
+#define AM33_MODE (gdbarch_tdep (current_gdbarch)->am33_mode)
+};
+
/* Additional info used by the frame */
struct frame_extra_info
@@ -42,27 +49,40 @@ struct frame_extra_info
};
-static char *mn10300_generic_register_names[] =
-{"d0", "d1", "d2", "d3", "a0", "a1", "a2", "a3",
- "sp", "pc", "mdr", "psw", "lir", "lar", "", "",
- "", "", "", "", "", "", "", "",
- "", "", "", "", "", "", "", "fp"};
-
-static char **mn10300_register_names = mn10300_generic_register_names;
-static char *am33_register_names[] =
+static char *
+register_name (int reg, char **regs, long sizeof_regs)
{
- "d0", "d1", "d2", "d3", "a0", "a1", "a2", "a3",
- "sp", "pc", "mdr", "psw", "lir", "lar", "",
- "r0", "r1", "r2", "r3", "r4", "r5", "r6", "r7",
- "ssp", "msp", "usp", "mcrh", "mcrl", "mcvf", "", "", ""};
-static int am33_mode;
-
-char *
-mn10300_register_name (int i)
+ if (reg < 0 || reg >= sizeof_regs / sizeof (regs[0]))
+ return NULL;
+ else
+ return regs[reg];
+}
+
+static char *
+mn10300_generic_register_name (int reg)
{
- return mn10300_register_names[i];
+ static char *regs[] =
+ { "d0", "d1", "d2", "d3", "a0", "a1", "a2", "a3",
+ "sp", "pc", "mdr", "psw", "lir", "lar", "", "",
+ "", "", "", "", "", "", "", "",
+ "", "", "", "", "", "", "", "fp"
+ };
+ return register_name (reg, regs, sizeof regs);
}
+
+static char *
+am33_register_name (int reg)
+{
+ static char *regs[] =
+ { "d0", "d1", "d2", "d3", "a0", "a1", "a2", "a3",
+ "sp", "pc", "mdr", "psw", "lir", "lar", "",
+ "r0", "r1", "r2", "r3", "r4", "r5", "r6", "r7",
+ "ssp", "msp", "usp", "mcrh", "mcrl", "mcvf", "", "", ""
+ };
+ return register_name (reg, regs, sizeof regs);
+}
+
CORE_ADDR
mn10300_saved_pc_after_call (struct frame_info *fi)
{
@@ -194,7 +214,7 @@ set_movm_offsets (struct frame_info *fi, int movm_args)
fi->saved_regs[D2_REGNUM] = fi->frame + offset;
offset += 4;
}
- if (am33_mode && movm_args & 0x02)
+ if (AM33_MODE && movm_args & 0x02)
{
fi->saved_regs[E0_REGNUM + 5] = fi->frame + offset;
fi->saved_regs[E0_REGNUM + 4] = fi->frame + offset + 4;
@@ -543,7 +563,7 @@ mn10300_frame_chain (struct frame_info *fi)
adjust += (fi->saved_regs[D3_REGNUM] ? 4 : 0);
adjust += (fi->saved_regs[A2_REGNUM] ? 4 : 0);
adjust += (fi->saved_regs[A3_REGNUM] ? 4 : 0);
- if (am33_mode)
+ if (AM33_MODE)
{
adjust += (fi->saved_regs[E0_REGNUM + 5] ? 4 : 0);
adjust += (fi->saved_regs[E0_REGNUM + 4] ? 4 : 0);
@@ -611,8 +631,8 @@ mn10300_pop_frame (struct frame_info *frame)
order on the stack. */
CORE_ADDR
-mn10300_push_arguments (int nargs, value_ptr *args, CORE_ADDR sp,
- unsigned char struct_return, CORE_ADDR struct_addr)
+mn10300_push_arguments (int nargs, struct value **args, CORE_ADDR sp,
+ int struct_return, CORE_ADDR struct_addr)
{
int argnum = 0;
int len = 0;
@@ -729,7 +749,7 @@ mn10300_frame_saved_pc (struct frame_info *fi)
adjust += (fi->saved_regs[D3_REGNUM] ? 4 : 0);
adjust += (fi->saved_regs[A2_REGNUM] ? 4 : 0);
adjust += (fi->saved_regs[A3_REGNUM] ? 4 : 0);
- if (am33_mode)
+ if (AM33_MODE)
{
adjust += (fi->saved_regs[E0_REGNUM + 5] ? 4 : 0);
adjust += (fi->saved_regs[E0_REGNUM + 4] ? 4 : 0);
@@ -794,27 +814,78 @@ mn10300_virtual_frame_pointer (CORE_ADDR pc, long *reg, long *offset)
}
}
-/* This can be made more generic later. */
-static void
-set_machine_hook (char *filename)
+static int
+mn10300_reg_struct_has_addr (int gcc_p, struct type *type)
{
- int i;
+ return (TYPE_LENGTH (type) > 8);
+}
- if (bfd_get_mach (exec_bfd) == bfd_mach_mn10300
- || bfd_get_mach (exec_bfd) == 0)
- {
- mn10300_register_names = mn10300_generic_register_names;
- }
+/* Dump out the mn10300 speciic architecture information. */
- am33_mode = 0;
- if (bfd_get_mach (exec_bfd) == bfd_mach_am33)
- {
+static void
+mn10300_dump_tdep (struct gdbarch *current_gdbarch, struct ui_file *file)
+{
+ struct gdbarch_tdep *tdep = gdbarch_tdep (current_gdbarch);
+ fprintf_unfiltered (file, "mn10300_dump_tdep: am33_mode = %d\n",
+ tdep->am33_mode);
+}
- mn10300_register_names = am33_register_names;
+static struct gdbarch *
+mn10300_gdbarch_init (struct gdbarch_info info,
+ struct gdbarch_list *arches)
+{
+ struct gdbarch *gdbarch;
+ struct gdbarch_tdep *tdep = NULL;
+ int am33_mode;
+ gdbarch_register_name_ftype *register_name;
+ int mach;
+ int num_regs;
+
+ arches = gdbarch_list_lookup_by_info (arches, &info);
+ if (arches != NULL)
+ return arches->gdbarch;
+ tdep = xmalloc (sizeof (struct gdbarch_tdep));
+ gdbarch = gdbarch_alloc (&info, tdep);
+
+ if (info.bfd_arch_info != NULL
+ && info.bfd_arch_info->arch == bfd_arch_mips)
+ mach = info.bfd_arch_info->mach;
+ else
+ mach = 0;
+ switch (mach)
+ {
+ case 0:
+ am33_mode = 0;
+ register_name = mn10300_generic_register_name;
+ num_regs = 32;
+ break;
+ case bfd_mach_am33:
am33_mode = 1;
+ register_name = am33_register_name;
+ num_regs = 32;
+ break;
+ default:
+ internal_error ("mn10300_gdbarch_init: Unknown mn10300 variant");
+ return NULL; /* keep GCC happy. */
}
-}
+ set_gdbarch_call_dummy_p (gdbarch, 1);
+ set_gdbarch_register_name (gdbarch, register_name);
+ set_gdbarch_use_generic_dummy_frames (gdbarch, 1);
+ set_gdbarch_call_dummy_breakpoint_offset_p (gdbarch, 0);
+ set_gdbarch_call_dummy_stack_adjust_p (gdbarch, 0);
+ set_gdbarch_get_saved_register (gdbarch, generic_get_saved_register);
+ set_gdbarch_push_arguments (gdbarch, mn10300_push_arguments);
+ set_gdbarch_push_return_address (gdbarch, mn10300_push_return_address);
+ set_gdbarch_frame_chain_valid (gdbarch, generic_file_frame_chain_valid);
+ set_gdbarch_reg_struct_has_addr (gdbarch, mn10300_reg_struct_has_addr);
+ set_gdbarch_save_dummy_frame_tos (gdbarch, generic_save_dummy_frame_tos);
+ set_gdbarch_num_regs (gdbarch, num_regs);
+ tdep->am33_mode = am33_mode;
+
+ return gdbarch;
+}
+
void
_initialize_mn10300_tdep (void)
{
@@ -822,5 +893,5 @@ _initialize_mn10300_tdep (void)
tm_print_insn = print_insn_mn10300;
- specify_exec_file_hook (set_machine_hook);
+ register_gdbarch_init (bfd_arch_mn10300, mn10300_gdbarch_init);
}
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