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Make RL78_PC_REGNUM a pseudo-register in rl78-tdep.c.

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This commit is contained in:
Kevin Buettner 2013-08-16 04:30:23 +00:00
parent 4956ded865
commit ba89f962b4
2 changed files with 37 additions and 6 deletions
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9
gdb/ChangeLog
View File

@ -1,3 +1,12 @@
2013-08-15 Kevin Buettner <kevinb@redhat.com>
* rl78-tdep.c (RL78_RAW_PC_REGNUM): New enum.
(RL78_PC_REGNUM): Move to list of pseudo-register enums.
(rl78_register_type, rl78_register_name, rl78_register_reggroup_p):
Update to account for fact that PC is now a pseudo-register.
(rl78_pseudo_register_write, rl78_pseudo_register_read): Add
cases for RL78_PC_REGNUM.
2013-08-15 Muhammad Bilal <mbilal@codesourcery.com>
PR cli/15841

34
gdb/rl78-tdep.c
View File

@ -94,7 +94,7 @@ enum
RL78_PSW_REGNUM, /* 8 bits */
RL78_ES_REGNUM, /* 8 bits */
RL78_CS_REGNUM, /* 8 bits */
RL78_PC_REGNUM, /* 20 bits; we'll use 32 bits for it. */
RL78_RAW_PC_REGNUM, /* 20 bits; we'll use 32 bits for it. */
/* Fixed address SFRs (some of those above are SFRs too.) */
RL78_SPL_REGNUM, /* 8 bits; lower half of SP */
@ -105,7 +105,8 @@ enum
RL78_NUM_REGS,
/* Pseudo registers. */
RL78_SP_REGNUM = RL78_NUM_REGS,
RL78_PC_REGNUM = RL78_NUM_REGS,
RL78_SP_REGNUM,
RL78_X_REGNUM,
RL78_A_REGNUM,
@ -243,6 +244,8 @@ rl78_register_type (struct gdbarch *gdbarch, int reg_nr)
if (reg_nr == RL78_PC_REGNUM)
return tdep->rl78_code_pointer;
else if (reg_nr == RL78_RAW_PC_REGNUM)
return tdep->rl78_uint32;
else if (reg_nr <= RL78_MEM_REGNUM
|| (RL78_X_REGNUM <= reg_nr && reg_nr <= RL78_H_REGNUM)
|| (RL78_BANK0_R0_REGNUM <= reg_nr
@ -298,13 +301,14 @@ rl78_register_name (struct gdbarch *gdbarch, int regnr)
"psw",
"es",
"cs",
"pc",
"",
"", /* spl */
"", /* sph */
"pmc",
"mem",
"pc",
"sp",
"x",
@ -394,9 +398,11 @@ rl78_register_reggroup_p (struct gdbarch *gdbarch, int regnum,
if (group == save_reggroup || group == restore_reggroup)
{
if ((regnum < RL78_NUM_REGS
&& regnum != RL78_SPL_REGNUM
&& regnum != RL78_SPH_REGNUM)
|| regnum == RL78_SP_REGNUM)
&& regnum != RL78_SPL_REGNUM
&& regnum != RL78_SPH_REGNUM
&& regnum != RL78_RAW_PC_REGNUM)
|| regnum == RL78_SP_REGNUM
|| regnum == RL78_PC_REGNUM)
return 1;
else
return 0;
@ -409,6 +415,7 @@ rl78_register_reggroup_p (struct gdbarch *gdbarch, int regnum,
|| regnum == RL78_SPH_REGNUM
|| regnum == RL78_PMC_REGNUM
|| regnum == RL78_MEM_REGNUM
|| regnum == RL78_RAW_PC_REGNUM
|| (RL78_BANK0_RP0_REGNUM <= regnum && regnum <= RL78_BANK3_RP3_REGNUM))
return group == system_reggroup;
@ -464,6 +471,13 @@ rl78_pseudo_register_read (struct gdbarch *gdbarch,
if (status == REG_VALID)
status = regcache_raw_read (regcache, RL78_SPH_REGNUM, buffer + 1);
}
else if (reg == RL78_PC_REGNUM)
{
gdb_byte rawbuf[4];
status = regcache_raw_read (regcache, RL78_RAW_PC_REGNUM, rawbuf);
memcpy (buffer, rawbuf, 3);
}
else if (RL78_X_REGNUM <= reg && reg <= RL78_H_REGNUM)
{
ULONGEST psw;
@ -527,6 +541,14 @@ rl78_pseudo_register_write (struct gdbarch *gdbarch,
regcache_raw_write (regcache, RL78_SPL_REGNUM, buffer);
regcache_raw_write (regcache, RL78_SPH_REGNUM, buffer + 1);
}
else if (reg == RL78_PC_REGNUM)
{
gdb_byte rawbuf[4];
memcpy (rawbuf, buffer, 3);
rawbuf[3] = 0;
regcache_raw_write (regcache, RL78_RAW_PC_REGNUM, rawbuf);
}
else if (RL78_X_REGNUM <= reg && reg <= RL78_H_REGNUM)
{
ULONGEST psw;