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* mn10300-tdep.c (mn10300_dwarf2_reg_to_regnum): New function. 

(mn10300_gdbarch_init): Register it as the architecture's
dwarf2_reg_to_regnum method.
This commit is contained in:
Jim Blandy 2001-05-09 02:55:21 +00:00
parent ae83b20d8f
commit 2343651077
2 changed files with 34 additions and 0 deletions
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4
gdb/ChangeLog
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@ -1,5 +1,9 @@
2001-05-08 Jim Blandy <jimb@redhat.com>
* mn10300-tdep.c (mn10300_dwarf2_reg_to_regnum): New function.
(mn10300_gdbarch_init): Register it as the architecture's
dwarf2_reg_to_regnum method.
Correct and expand handling of `movm' instruction, and register
saves in general.
* config/mn10300/tm-mn10300.h (D0_REGNUM, A0_REGNUM, MDRQ_REGNUM,

30
gdb/mn10300-tdep.c
View File

@ -893,6 +893,35 @@ mn10300_register_raw_size (int reg)
return 4;
}
/* If DWARF2 is a register number appearing in Dwarf2 debug info, then
mn10300_dwarf2_reg_to_regnum (DWARF2) is the corresponding GDB
register number. Why don't Dwarf2 and GDB use the same numbering?
Who knows? But since people have object files lying around with
the existing Dwarf2 numbering, and other people have written stubs
to work with the existing GDB, neither of them can change. So we
just have to cope. */
static int
mn10300_dwarf2_reg_to_regnum (int dwarf2)
{
/* This table is supposed to be shaped like the REGISTER_NAMES
initializer in gcc/config/mn10300/mn10300.h. Registers which
appear in GCC's numbering, but have no counterpart in GDB's
world, are marked with a -1. */
static int dwarf2_to_gdb[] = {
0, 1, 2, 3, 4, 5, 6, 7, -1, 8,
15, 16, 17, 18, 19, 20, 21, 22
};
int gdb;
if (dwarf2 < 0
|| dwarf2 >= (sizeof (dwarf2_to_gdb) / sizeof (dwarf2_to_gdb[0]))
|| dwarf2_to_gdb[dwarf2] == -1)
internal_error (__FILE__, __LINE__,
"bogus register number in debug info: %d", dwarf2);
return dwarf2_to_gdb[dwarf2];
}
static void
mn10300_print_register (const char *name, int regnum, int reg_width)
{
@ -1041,6 +1070,7 @@ mn10300_gdbarch_init (struct gdbarch_info info,
set_gdbarch_max_register_virtual_size (gdbarch, 4);
set_gdbarch_register_virtual_size (gdbarch, mn10300_register_virtual_size);
set_gdbarch_register_virtual_type (gdbarch, mn10300_register_virtual_type);
set_gdbarch_dwarf2_reg_to_regnum (gdbarch, mn10300_dwarf2_reg_to_regnum);
set_gdbarch_do_registers_info (gdbarch, mn10300_do_registers_info);
set_gdbarch_fp_regnum (gdbarch, 31);