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2004-01-17 Andrew Cagney <cagney@redhat.com>

Browse Source 
* gdbarch.sh (DEPRECATED_NPC_REGNUM): Delete.
	* gdbarch.h, gdbarch.c: Re-generate.
	* procfs.c (procfs_fetch_registers): Delete reference to
	DEPRECATED_NPC_REGNUM.
	(procfs_store_registers): Ditto.
	* regcache.c (generic_target_write_pc): Simplify.
	* lynx-nat.c: Delete #ifdef SPARC code.  Not used.

Index: doc/ChangeLog
2004-01-17  Andrew Cagney  <cagney@redhat.com>

	* gdbint.texinfo (Target Architecture Definition): Delete
	documentation on DEPRECATED_NPC_REGNUM.
This commit is contained in:
Andrew Cagney 2004-01-17 18:24:15 +00:00
parent a698f53eb9
commit afb18d0f3d
9 changed files with 24 additions and 276 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

8
gdb/ChangeLog
View File

@ -1,5 +1,13 @@
2004-01-17 Andrew Cagney <cagney@redhat.com>
* gdbarch.sh (DEPRECATED_NPC_REGNUM): Delete.
* gdbarch.h, gdbarch.c: Re-generate.
* procfs.c (procfs_fetch_registers): Delete reference to
DEPRECATED_NPC_REGNUM.
(procfs_store_registers): Ditto.
* regcache.c (generic_target_write_pc): Simplify.
* lynx-nat.c: Delete #ifdef SPARC code. Not used.
* core-sol2.c (fetch_core_registers): Replace
DEPRECATED_NPC_REGNUM with equivalent tdep value.

5
gdb/doc/ChangeLog
View File

@ -1,3 +1,8 @@
2004-01-17 Andrew Cagney <cagney@redhat.com>
* gdbint.texinfo (Target Architecture Definition): Delete
documentation on DEPRECATED_NPC_REGNUM.
2004-01-13 Daniel Jacobowitz <drow@mvista.com>
* gdb.texinfo: Update copyright year. Mention that set

7
gdb/doc/gdbint.texinfo
View File

@ -3715,13 +3715,6 @@ be the number (greater than or equal to zero) of that register.
This should only need to be defined if @code{TARGET_READ_PC} and
@code{TARGET_WRITE_PC} are not defined.
@item DEPRECATED_NPC_REGNUM
@findex DEPRECATED_NPC_REGNUM
The number of the ``next program counter'' register, if defined.
@code{DEPRECATED_NPC_REGNUM} has been replaced by @code{TARGET_WRITE_PC}
(@pxref{TARGET_WRITE_PC}).
@item PARM_BOUNDARY
@findex PARM_BOUNDARY
If non-zero, round arguments to a boundary of this many bits before

29
gdb/gdbarch.c
View File

@ -137,7 +137,6 @@ struct gdbarch
int pc_regnum;
int ps_regnum;
int fp0_regnum;
int deprecated_npc_regnum;
gdbarch_stab_reg_to_regnum_ftype *stab_reg_to_regnum;
gdbarch_ecoff_reg_to_regnum_ftype *ecoff_reg_to_regnum;
gdbarch_dwarf_reg_to_regnum_ftype *dwarf_reg_to_regnum;
@ -310,7 +309,6 @@ struct gdbarch startup_gdbarch =
-1, /* pc_regnum */
-1, /* ps_regnum */
0, /* fp0_regnum */
0, /* deprecated_npc_regnum */
0, /* stab_reg_to_regnum */
0, /* ecoff_reg_to_regnum */
0, /* dwarf_reg_to_regnum */
@ -493,7 +491,6 @@ gdbarch_alloc (const struct gdbarch_info *info,
current_gdbarch->pc_regnum = -1;
current_gdbarch->ps_regnum = -1;
current_gdbarch->fp0_regnum = -1;
current_gdbarch->deprecated_npc_regnum = -1;
current_gdbarch->stab_reg_to_regnum = no_op_reg_to_regnum;
current_gdbarch->ecoff_reg_to_regnum = no_op_reg_to_regnum;
current_gdbarch->dwarf_reg_to_regnum = no_op_reg_to_regnum;
@ -630,7 +627,6 @@ verify_gdbarch (struct gdbarch *current_gdbarch)
/* Skip verify of pc_regnum, invalid_p == 0 */
/* Skip verify of ps_regnum, invalid_p == 0 */
/* Skip verify of fp0_regnum, invalid_p == 0 */
/* Skip verify of deprecated_npc_regnum, invalid_p == 0 */
/* Skip verify of stab_reg_to_regnum, invalid_p == 0 */
/* Skip verify of ecoff_reg_to_regnum, invalid_p == 0 */
/* Skip verify of dwarf_reg_to_regnum, invalid_p == 0 */
@ -1370,14 +1366,6 @@ gdbarch_dump (struct gdbarch *current_gdbarch, struct ui_file *file)
"gdbarch_dump: DEPRECATED_MAX_REGISTER_VIRTUAL_SIZE = %d\n",
DEPRECATED_MAX_REGISTER_VIRTUAL_SIZE);
#endif
#ifdef DEPRECATED_NPC_REGNUM
fprintf_unfiltered (file,
"gdbarch_dump: DEPRECATED_NPC_REGNUM # %s\n",
XSTRING (DEPRECATED_NPC_REGNUM));
fprintf_unfiltered (file,
"gdbarch_dump: DEPRECATED_NPC_REGNUM = %d\n",
DEPRECATED_NPC_REGNUM);
#endif
#ifdef DEPRECATED_PC_IN_CALL_DUMMY_P
fprintf_unfiltered (file,
"gdbarch_dump: %s # %s\n",
@ -2986,23 +2974,6 @@ set_gdbarch_fp0_regnum (struct gdbarch *gdbarch,
gdbarch->fp0_regnum = fp0_regnum;
}
int
gdbarch_deprecated_npc_regnum (struct gdbarch *gdbarch)
{
gdb_assert (gdbarch != NULL);
/* Skip verify of deprecated_npc_regnum, invalid_p == 0 */
if (gdbarch_debug >= 2)
fprintf_unfiltered (gdb_stdlog, "gdbarch_deprecated_npc_regnum called\n");
return gdbarch->deprecated_npc_regnum;
}
void
set_gdbarch_deprecated_npc_regnum (struct gdbarch *gdbarch,
int deprecated_npc_regnum)
{
gdbarch->deprecated_npc_regnum = deprecated_npc_regnum;
}
int
gdbarch_stab_reg_to_regnum (struct gdbarch *gdbarch, int stab_regnr)
{

12
gdb/gdbarch.h
View File

@ -376,18 +376,6 @@ extern void set_gdbarch_fp0_regnum (struct gdbarch *gdbarch, int fp0_regnum);
#define FP0_REGNUM (gdbarch_fp0_regnum (current_gdbarch))
#endif
/* Replace DEPRECATED_NPC_REGNUM with an implementation of WRITE_PC
that updates PC, NPC and even NNPC. */
extern int gdbarch_deprecated_npc_regnum (struct gdbarch *gdbarch);
extern void set_gdbarch_deprecated_npc_regnum (struct gdbarch *gdbarch, int deprecated_npc_regnum);
#if (GDB_MULTI_ARCH > GDB_MULTI_ARCH_PARTIAL) && defined (DEPRECATED_NPC_REGNUM)
#error "Non multi-arch definition of DEPRECATED_NPC_REGNUM"
#endif
#if !defined (DEPRECATED_NPC_REGNUM)
#define DEPRECATED_NPC_REGNUM (gdbarch_deprecated_npc_regnum (current_gdbarch))
#endif
/* Convert stab register number (from `r' declaration) to a gdb REGNUM. */
typedef int (gdbarch_stab_reg_to_regnum_ftype) (int stab_regnr);

3
gdb/gdbarch.sh
View File

@ -454,9 +454,6 @@ v:2:SP_REGNUM:int:sp_regnum::::-1:-1::0
v:2:PC_REGNUM:int:pc_regnum::::-1:-1::0
v:2:PS_REGNUM:int:ps_regnum::::-1:-1::0
v:2:FP0_REGNUM:int:fp0_regnum::::0:-1::0
# Replace DEPRECATED_NPC_REGNUM with an implementation of WRITE_PC
# that updates PC, NPC and even NNPC.
v:2:DEPRECATED_NPC_REGNUM:int:deprecated_npc_regnum::::0:-1::0
# Convert stab register number (from \`r\' declaration) to a gdb REGNUM.
f:2:STAB_REG_TO_REGNUM:int:stab_reg_to_regnum:int stab_regnr:stab_regnr:::no_op_reg_to_regnum::0
# Provide a default mapping from a ecoff register number to a gdb REGNUM.

208
gdb/lynx-nat.c
View File

@ -256,214 +256,6 @@ static int regmap[] =
#endif /* rs6000 */
#ifdef SPARC
/* This routine handles some oddball cases for Sparc registers and LynxOS.
In partucular, it causes refs to G0, g5->7, and all fp regs to return zero.
It also handles knows where to find the I & L regs on the stack. */
void
fetch_inferior_registers (int regno)
{
int whatregs = 0;
#define WHATREGS_FLOAT 1
#define WHATREGS_GEN 2
#define WHATREGS_STACK 4
if (regno == -1)
whatregs = WHATREGS_FLOAT | WHATREGS_GEN | WHATREGS_STACK;
else if (regno >= L0_REGNUM && regno <= I7_REGNUM)
whatregs = WHATREGS_STACK;
else if (regno >= FP0_REGNUM && regno < FP0_REGNUM + 32)
whatregs = WHATREGS_FLOAT;
else
whatregs = WHATREGS_GEN;
if (whatregs & WHATREGS_GEN)
{
struct econtext ec; /* general regs */
char buf[MAX_REGISTER_SIZE];
int retval;
int i;
errno = 0;
retval = ptrace (PTRACE_GETREGS, PIDGET (inferior_ptid),
(PTRACE_ARG3_TYPE) & ec, 0);
if (errno)
perror_with_name ("ptrace(PTRACE_GETREGS)");
memset (buf, 0, DEPRECATED_REGISTER_RAW_SIZE (G0_REGNUM));
supply_register (G0_REGNUM, buf);
supply_register (TBR_REGNUM, (char *) &ec.tbr);
memcpy (&deprecated_registers[DEPRECATED_REGISTER_BYTE (G1_REGNUM)], &ec.g1,
4 * DEPRECATED_REGISTER_RAW_SIZE (G1_REGNUM));
for (i = G1_REGNUM; i <= G1_REGNUM + 3; i++)
deprecated_register_valid[i] = 1;
supply_register (PS_REGNUM, (char *) &ec.psr);
supply_register (Y_REGNUM, (char *) &ec.y);
supply_register (PC_REGNUM, (char *) &ec.pc);
supply_register (DEPRECATED_NPC_REGNUM, (char *) &ec.npc);
supply_register (WIM_REGNUM, (char *) &ec.wim);
memcpy (&deprecated_registers[DEPRECATED_REGISTER_BYTE (O0_REGNUM)], ec.o,
8 * DEPRECATED_REGISTER_RAW_SIZE (O0_REGNUM));
for (i = O0_REGNUM; i <= O0_REGNUM + 7; i++)
deprecated_register_valid[i] = 1;
}
if (whatregs & WHATREGS_STACK)
{
CORE_ADDR sp;
int i;
sp = read_register (SP_REGNUM);
target_read_memory (sp + FRAME_SAVED_I0,
&deprecated_registers[DEPRECATED_REGISTER_BYTE (I0_REGNUM)],
8 * DEPRECATED_REGISTER_RAW_SIZE (I0_REGNUM));
for (i = I0_REGNUM; i <= I7_REGNUM; i++)
deprecated_register_valid[i] = 1;
target_read_memory (sp + FRAME_SAVED_L0,
&deprecated_registers[DEPRECATED_REGISTER_BYTE (L0_REGNUM)],
8 * DEPRECATED_REGISTER_RAW_SIZE (L0_REGNUM));
for (i = L0_REGNUM; i <= L0_REGNUM + 7; i++)
deprecated_register_valid[i] = 1;
}
if (whatregs & WHATREGS_FLOAT)
{
struct fcontext fc; /* fp regs */
int retval;
int i;
errno = 0;
retval = ptrace (PTRACE_GETFPREGS, PIDGET (inferior_ptid),
(PTRACE_ARG3_TYPE) & fc, 0);
if (errno)
perror_with_name ("ptrace(PTRACE_GETFPREGS)");
memcpy (&deprecated_registers[DEPRECATED_REGISTER_BYTE (FP0_REGNUM)], fc.f.fregs,
32 * DEPRECATED_REGISTER_RAW_SIZE (FP0_REGNUM));
for (i = FP0_REGNUM; i <= FP0_REGNUM + 31; i++)
deprecated_register_valid[i] = 1;
supply_register (FPS_REGNUM, (char *) &fc.fsr);
}
}
/* This routine handles storing of the I & L regs for the Sparc. The trick
here is that they actually live on the stack. The really tricky part is
that when changing the stack pointer, the I & L regs must be written to
where the new SP points, otherwise the regs will be incorrect when the
process is started up again. We assume that the I & L regs are valid at
this point. */
void
store_inferior_registers (int regno)
{
int whatregs = 0;
if (regno == -1)
whatregs = WHATREGS_FLOAT | WHATREGS_GEN | WHATREGS_STACK;
else if (regno >= L0_REGNUM && regno <= I7_REGNUM)
whatregs = WHATREGS_STACK;
else if (regno >= FP0_REGNUM && regno < FP0_REGNUM + 32)
whatregs = WHATREGS_FLOAT;
else if (regno == SP_REGNUM)
whatregs = WHATREGS_STACK | WHATREGS_GEN;
else
whatregs = WHATREGS_GEN;
if (whatregs & WHATREGS_GEN)
{
struct econtext ec; /* general regs */
int retval;
ec.tbr = read_register (TBR_REGNUM);
memcpy (&ec.g1, &deprecated_registers[DEPRECATED_REGISTER_BYTE (G1_REGNUM)],
4 * DEPRECATED_REGISTER_RAW_SIZE (G1_REGNUM));
ec.psr = read_register (PS_REGNUM);
ec.y = read_register (Y_REGNUM);
ec.pc = read_register (PC_REGNUM);
ec.npc = read_register (DEPRECATED_NPC_REGNUM);
ec.wim = read_register (WIM_REGNUM);
memcpy (ec.o, &deprecated_registers[DEPRECATED_REGISTER_BYTE (O0_REGNUM)],
8 * DEPRECATED_REGISTER_RAW_SIZE (O0_REGNUM));
errno = 0;
retval = ptrace (PTRACE_SETREGS, PIDGET (inferior_ptid),
(PTRACE_ARG3_TYPE) & ec, 0);
if (errno)
perror_with_name ("ptrace(PTRACE_SETREGS)");
}
if (whatregs & WHATREGS_STACK)
{
int regoffset;
CORE_ADDR sp;
sp = read_register (SP_REGNUM);
if (regno == -1 || regno == SP_REGNUM)
{
if (!deprecated_register_valid[L0_REGNUM + 5])
internal_error (__FILE__, __LINE__, "failed internal consistency check");
target_write_memory (sp + FRAME_SAVED_I0,
&deprecated_registers[DEPRECATED_REGISTER_BYTE (I0_REGNUM)],
8 * DEPRECATED_REGISTER_RAW_SIZE (I0_REGNUM));
target_write_memory (sp + FRAME_SAVED_L0,
&deprecated_registers[DEPRECATED_REGISTER_BYTE (L0_REGNUM)],
8 * DEPRECATED_REGISTER_RAW_SIZE (L0_REGNUM));
}
else if (regno >= L0_REGNUM && regno <= I7_REGNUM)
{
if (!deprecated_register_valid[regno])
internal_error (__FILE__, __LINE__, "failed internal consistency check");
if (regno >= L0_REGNUM && regno <= L0_REGNUM + 7)
regoffset = DEPRECATED_REGISTER_BYTE (regno) - DEPRECATED_REGISTER_BYTE (L0_REGNUM)
+ FRAME_SAVED_L0;
else
regoffset = DEPRECATED_REGISTER_BYTE (regno) - DEPRECATED_REGISTER_BYTE (I0_REGNUM)
+ FRAME_SAVED_I0;
target_write_memory (sp + regoffset,
&deprecated_registers[DEPRECATED_REGISTER_BYTE (regno)],
DEPRECATED_REGISTER_RAW_SIZE (regno));
}
}
if (whatregs & WHATREGS_FLOAT)
{
struct fcontext fc; /* fp regs */
int retval;
/* We read fcontext first so that we can get good values for fq_t... */
errno = 0;
retval = ptrace (PTRACE_GETFPREGS, PIDGET (inferior_ptid),
(PTRACE_ARG3_TYPE) & fc, 0);
if (errno)
perror_with_name ("ptrace(PTRACE_GETFPREGS)");
memcpy (fc.f.fregs, &deprecated_registers[DEPRECATED_REGISTER_BYTE (FP0_REGNUM)],
32 * DEPRECATED_REGISTER_RAW_SIZE (FP0_REGNUM));
fc.fsr = read_register (FPS_REGNUM);
errno = 0;
retval = ptrace (PTRACE_SETFPREGS, PIDGET (inferior_ptid),
(PTRACE_ARG3_TYPE) & fc, 0);
if (errno)
perror_with_name ("ptrace(PTRACE_SETFPREGS)");
}
}
#endif /* SPARC */
#if defined (I386) || defined (M68K) || defined (rs6000)
/* Return the offset relative to the start of the per-thread data to the

18
gdb/procfs.c
View File

@ -3703,11 +3703,10 @@ procfs_fetch_registers (int regno)
if (FP0_REGNUM >= 0) /* need floating point? */
{
if ((regno >= 0 && regno < FP0_REGNUM) ||
regno == PC_REGNUM ||
(DEPRECATED_NPC_REGNUM >= 0 && regno == DEPRECATED_NPC_REGNUM) ||
regno == DEPRECATED_FP_REGNUM ||
regno == SP_REGNUM)
if ((regno >= 0 && regno < FP0_REGNUM)
|| regno == PC_REGNUM
|| regno == DEPRECATED_FP_REGNUM
|| regno == SP_REGNUM)
return; /* not a floating point register */
if ((fpregs = proc_get_fpregs (pi)) == NULL)
@ -3777,11 +3776,10 @@ procfs_store_registers (int regno)
if (FP0_REGNUM >= 0) /* need floating point? */
{
if ((regno >= 0 && regno < FP0_REGNUM) ||
regno == PC_REGNUM ||
(DEPRECATED_NPC_REGNUM >= 0 && regno == DEPRECATED_NPC_REGNUM) ||
regno == DEPRECATED_FP_REGNUM ||
regno == SP_REGNUM)
if ((regno >= 0 && regno < FP0_REGNUM)
|| regno == PC_REGNUM
|| regno == DEPRECATED_FP_REGNUM
|| regno == SP_REGNUM)
return; /* not a floating point register */
if ((fpregs = proc_get_fpregs (pi)) == NULL)

10
gdb/regcache.c
View File

@ -1351,15 +1351,11 @@ read_pc (void)
void
generic_target_write_pc (CORE_ADDR pc, ptid_t ptid)
{
#ifdef PC_REGNUM
if (PC_REGNUM >= 0)
write_register_pid (PC_REGNUM, pc, ptid);
if (DEPRECATED_NPC_REGNUM >= 0)
write_register_pid (DEPRECATED_NPC_REGNUM, pc + 4, ptid);
#else
internal_error (__FILE__, __LINE__,
"generic_target_write_pc");
#endif
else
internal_error (__FILE__, __LINE__,
"generic_target_write_pc");
}
void