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rx: Create and use flags types for psw, bpsw, and fpsw registers. 

This change adds two flags types for the (Renesas RX) psw, bpsw, and
fpsw registers.  As a result, symbolic flags are displayed for these
registers in the output of GDB's "info registers" command as well as
in output from other commands, such as "print".

gdb/ChangeLog:

	* rx-tdep.c (RX_BPSW_REGNUM, RX_FPSW_REGNUM): New constants.
	(struct gdbarch_tdep): Add fields rx_psw_type and rx_fpsw_type.
	(rx_register_type): Add cases for RX_PSW_REGNUM, RX_BPSW_REGNUM,
	and RX_FPSW_REGNUM.
	(rx_gdbarch_init): Initialize PSW, BPSW, and FPSW flags types.
This commit is contained in:
Kevin Buettner 2015-07-02 15:02:56 -07:00
parent decf8d9a5f
commit 0561fea48c
2 changed files with 61 additions and 0 deletions
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8
gdb/ChangeLog
View File

@ -1,3 +1,11 @@
2015-07-02 Kevin Buettner <kevinb@redhat.com>
* rx-tdep.c (RX_BPSW_REGNUM, RX_FPSW_REGNUM): New constants.
(struct gdbarch_tdep): Add fields rx_psw_type and rx_fpsw_type.
(rx_register_type): Add cases for RX_PSW_REGNUM, RX_BPSW_REGNUM,
and RX_FPSW_REGNUM.
(rx_gdbarch_init): Initialize PSW, BPSW, and FPSW flags types.
2015-07-02 Jan Kratochvil <jan.kratochvil@redhat.com>
Fix GCC false warning.

53
gdb/rx-tdep.c
View File

@ -47,6 +47,8 @@ enum
RX_R15_REGNUM = 15,
RX_PSW_REGNUM = 18,
RX_PC_REGNUM = 19,
RX_BPSW_REGNUM = 21,
RX_FPSW_REGNUM = 24,
RX_ACC_REGNUM = 25,
RX_NUM_REGS = 26
};
@ -56,6 +58,12 @@ struct gdbarch_tdep
{
/* The ELF header flags specify the multilib used. */
int elf_flags;
/* Type of PSW and BPSW. */
struct type *rx_psw_type;
/* Type of FPSW. */
struct type *rx_fpsw_type;
};
/* This structure holds the results of a prologue analysis. */
@ -132,8 +140,14 @@ rx_register_name (struct gdbarch *gdbarch, int regnr)
static struct type *
rx_register_type (struct gdbarch *gdbarch, int reg_nr)
{
struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
if (reg_nr == RX_PC_REGNUM)
return builtin_type (gdbarch)->builtin_func_ptr;
else if (reg_nr == RX_PSW_REGNUM || reg_nr == RX_BPSW_REGNUM)
return tdep->rx_psw_type;
else if (reg_nr == RX_FPSW_REGNUM)
return tdep->rx_fpsw_type;
else if (reg_nr == RX_ACC_REGNUM)
return builtin_type (gdbarch)->builtin_unsigned_long_long;
else
@ -816,6 +830,45 @@ rx_gdbarch_init (struct gdbarch_info info, struct gdbarch_list *arches)
gdbarch = gdbarch_alloc (&info, tdep);
tdep->elf_flags = elf_flags;
/* Initialize the flags type for PSW and BPSW. */
tdep->rx_psw_type = arch_flags_type (gdbarch, "rx_psw_type", 4);
append_flags_type_flag (tdep->rx_psw_type, 0, "C");
append_flags_type_flag (tdep->rx_psw_type, 1, "Z");
append_flags_type_flag (tdep->rx_psw_type, 2, "S");
append_flags_type_flag (tdep->rx_psw_type, 3, "O");
append_flags_type_flag (tdep->rx_psw_type, 16, "I");
append_flags_type_flag (tdep->rx_psw_type, 17, "U");
append_flags_type_flag (tdep->rx_psw_type, 20, "PM");
append_flags_type_flag (tdep->rx_psw_type, 24, "IPL0");
append_flags_type_flag (tdep->rx_psw_type, 25, "IPL1");
append_flags_type_flag (tdep->rx_psw_type, 26, "IPL2");
append_flags_type_flag (tdep->rx_psw_type, 27, "IPL3");
/* Initialize flags type for FPSW. */
tdep->rx_fpsw_type = arch_flags_type (gdbarch, "rx_fpsw_type", 4);
append_flags_type_flag (tdep->rx_fpsw_type, 0, "RM0");
append_flags_type_flag (tdep->rx_fpsw_type, 1, "RM1");
append_flags_type_flag (tdep->rx_fpsw_type, 2, "CV");
append_flags_type_flag (tdep->rx_fpsw_type, 3, "CO");
append_flags_type_flag (tdep->rx_fpsw_type, 4, "CZ");
append_flags_type_flag (tdep->rx_fpsw_type, 5, "CU");
append_flags_type_flag (tdep->rx_fpsw_type, 6, "CX");
append_flags_type_flag (tdep->rx_fpsw_type, 7, "CE");
append_flags_type_flag (tdep->rx_fpsw_type, 8, "DN");
append_flags_type_flag (tdep->rx_fpsw_type, 10, "EV");
append_flags_type_flag (tdep->rx_fpsw_type, 11, "EO");
append_flags_type_flag (tdep->rx_fpsw_type, 12, "EZ");
append_flags_type_flag (tdep->rx_fpsw_type, 13, "EU");
append_flags_type_flag (tdep->rx_fpsw_type, 14, "EX");
append_flags_type_flag (tdep->rx_fpsw_type, 26, "FV");
append_flags_type_flag (tdep->rx_fpsw_type, 27, "FO");
append_flags_type_flag (tdep->rx_fpsw_type, 28, "FZ");
append_flags_type_flag (tdep->rx_fpsw_type, 29, "FU");
append_flags_type_flag (tdep->rx_fpsw_type, 30, "FX");
append_flags_type_flag (tdep->rx_fpsw_type, 31, "FS");
set_gdbarch_num_regs (gdbarch, RX_NUM_REGS);
set_gdbarch_num_pseudo_regs (gdbarch, 0);
set_gdbarch_register_name (gdbarch, rx_register_name);