* mn10300-tdep.c (mn10300_dwarf2_reg_to_regnum): New function.
(mn10300_gdbarch_init): Register it as the architecture's dwarf2_reg_to_regnum method.
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2001-05-08 Jim Blandy <jimb@redhat.com>
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* mn10300-tdep.c (mn10300_dwarf2_reg_to_regnum): New function.
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(mn10300_gdbarch_init): Register it as the architecture's
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dwarf2_reg_to_regnum method.
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Correct and expand handling of `movm' instruction, and register
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saves in general.
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* config/mn10300/tm-mn10300.h (D0_REGNUM, A0_REGNUM, MDRQ_REGNUM,
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@ -893,6 +893,35 @@ mn10300_register_raw_size (int reg)
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return 4;
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}
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/* If DWARF2 is a register number appearing in Dwarf2 debug info, then
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mn10300_dwarf2_reg_to_regnum (DWARF2) is the corresponding GDB
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register number. Why don't Dwarf2 and GDB use the same numbering?
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Who knows? But since people have object files lying around with
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the existing Dwarf2 numbering, and other people have written stubs
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to work with the existing GDB, neither of them can change. So we
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just have to cope. */
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static int
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mn10300_dwarf2_reg_to_regnum (int dwarf2)
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{
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/* This table is supposed to be shaped like the REGISTER_NAMES
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initializer in gcc/config/mn10300/mn10300.h. Registers which
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appear in GCC's numbering, but have no counterpart in GDB's
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world, are marked with a -1. */
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static int dwarf2_to_gdb[] = {
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0, 1, 2, 3, 4, 5, 6, 7, -1, 8,
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15, 16, 17, 18, 19, 20, 21, 22
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};
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int gdb;
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if (dwarf2 < 0
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|| dwarf2 >= (sizeof (dwarf2_to_gdb) / sizeof (dwarf2_to_gdb[0]))
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|| dwarf2_to_gdb[dwarf2] == -1)
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internal_error (__FILE__, __LINE__,
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"bogus register number in debug info: %d", dwarf2);
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return dwarf2_to_gdb[dwarf2];
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}
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static void
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mn10300_print_register (const char *name, int regnum, int reg_width)
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{
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@ -1041,6 +1070,7 @@ mn10300_gdbarch_init (struct gdbarch_info info,
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set_gdbarch_max_register_virtual_size (gdbarch, 4);
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set_gdbarch_register_virtual_size (gdbarch, mn10300_register_virtual_size);
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set_gdbarch_register_virtual_type (gdbarch, mn10300_register_virtual_type);
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set_gdbarch_dwarf2_reg_to_regnum (gdbarch, mn10300_dwarf2_reg_to_regnum);
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set_gdbarch_do_registers_info (gdbarch, mn10300_do_registers_info);
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set_gdbarch_fp_regnum (gdbarch, 31);
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