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2002-09-17 Andrew Cagney <ac131313@redhat.com>

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* NEWS: Mention that MIPS $fp behavior changed.
	* mipsnbsd-tdep.c (mipsnbsd_cannot_fetch_register): Delete
 	reference to FP_REGNUM.
	(mipsnbsd_cannot_store_register): Ditto.
	* mips-linux-nat.c: Update copyright.
 	(mips_linux_cannot_fetch_register): Delete reference to FP_REGNUM.
	(mips_linux_cannot_store_register): Ditto.
	* mips-linux-tdep.c (supply_gregset): Ditto.  Update copyright.
	* config/mips/tm-mips.h: Update copyright.
 	(FP_REGNUM): Delete macro.
	(MIPS_REGISTER_NAMES): Replace "fp" with "".
	* config/mips/tm-irix6.h (FP_REGNUM): Delete macro.
	* mips-tdep.c (mips_gdbarch_init): Set read_fp to mips_read_sp.
	(mips_r3041_reg_names, mips_r3051_reg_names)
 	(mips_r3081_reg_names): Replace "fp" with "".
	Fix PR gdb/480.
This commit is contained in:
Andrew Cagney 2002-09-17 23:26:02 +00:00
parent 45cf40d1cf
commit a094c6fb43
8 changed files with 46 additions and 26 deletions
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19
gdb/ChangeLog
View File

@ -1,3 +1,22 @@
2002-09-17 Andrew Cagney <ac131313@redhat.com>
* NEWS: Mention that MIPS $fp behavior changed.
* mipsnbsd-tdep.c (mipsnbsd_cannot_fetch_register): Delete
reference to FP_REGNUM.
(mipsnbsd_cannot_store_register): Ditto.
* mips-linux-nat.c: Update copyright.
(mips_linux_cannot_fetch_register): Delete reference to FP_REGNUM.
(mips_linux_cannot_store_register): Ditto.
* mips-linux-tdep.c (supply_gregset): Ditto. Update copyright.
* config/mips/tm-mips.h: Update copyright.
(FP_REGNUM): Delete macro.
(MIPS_REGISTER_NAMES): Replace "fp" with "".
* config/mips/tm-irix6.h (FP_REGNUM): Delete macro.
* mips-tdep.c (mips_gdbarch_init): Set read_fp to mips_read_sp.
(mips_r3041_reg_names, mips_r3051_reg_names)
(mips_r3081_reg_names): Replace "fp" with "".
Fix PR gdb/480.
2002-09-17 Theodore A. Roth <troth@verinet.com>
* gdb/avr-tdep.c(avr_scan_prologue): Fix bad call to

8
gdb/NEWS
View File

@ -3,6 +3,14 @@
*** Changes since GDB 5.3:
* MIPS $fp behavior changed
The convenience variable $fp, for the MIPS, now consistently returns
the address of the current frame's base. Previously, depending on the
context, $fp could refer to either $sp or the current frame's base
address. See ``8.10 Registers'' in the manual ``Debugging with GDB:
The GNU Source-Level Debugger''.
*** Changes in GDB 5.3:
* ``gdbserver'' now supports multi-threaded applications on some targets

6
gdb/config/mips/tm-irix6.h
View File

@ -1,6 +1,6 @@
/* Target machine description for SGI Iris under Irix 6.x, for GDB.
Copyright 2001
Free Software Foundation, Inc.
Copyright 2001, 2002 Free Software Foundation, Inc.
This file is part of GDB.
@ -38,7 +38,6 @@
#undef BADVADDR_REGNUM
#undef FCRCS_REGNUM
#undef FCRIR_REGNUM
#undef FP_REGNUM
/* Number of machine registers */
@ -74,7 +73,6 @@
#define LO_REGNUM 68 /* ... */
#define FCRCS_REGNUM 69 /* FP control/status */
#define FCRIR_REGNUM 70 /* FP implementation/revision */
#define FP_REGNUM 30 /* S8 register is the Frame Pointer */
#undef REGISTER_BYTES

10
gdb/config/mips/tm-mips.h
View File

@ -1,7 +1,8 @@
/* Definitions to make GDB run on a mips box under 4.3bsd.
Copyright 1986, 1987, 1989, 1991, 1992, 1993, 1994, 1995, 1996, 1997,
1998, 1999, 2000
Free Software Foundation, Inc.
Copyright 1986, 1987, 1989, 1991, 1992, 1993, 1994, 1995, 1996,
1997, 1998, 1999, 2000, 2002 Free Software Foundation, Inc.
Contributed by Per Bothner (bothner@cs.wisc.edu) at U.Wisconsin
and by Alessandro Forin (af@cs.cmu.edu) at CMU..
@ -86,7 +87,7 @@ extern int mips_step_skips_delay (CORE_ADDR);
"f8", "f9", "f10", "f11", "f12", "f13", "f14", "f15", \
"f16", "f17", "f18", "f19", "f20", "f21", "f22", "f23",\
"f24", "f25", "f26", "f27", "f28", "f29", "f30", "f31",\
"fsr", "fir", "fp", "", \
"fsr", "fir", ""/*"fp"*/, "", \
"", "", "", "", "", "", "", "", \
"", "", "", "", "", "", "", "", \
}
@ -115,7 +116,6 @@ extern int mips_step_skips_delay (CORE_ADDR);
#define FPA0_REGNUM (FP0_REGNUM+12) /* First float argument register */
#define FCRCS_REGNUM 70 /* FP control/status */
#define FCRIR_REGNUM 71 /* FP implementation/revision */
#define FP_REGNUM 72 /* Pseudo register that contains true address of executing stack frame */
#define UNUSED_REGNUM 73 /* Never used, FIXME */
#define FIRST_EMBED_REGNUM 74 /* First CP0 register for embedded use */
#define PRID_REGNUM 89 /* Processor ID */

11
gdb/mips-linux-nat.c
View File

@ -1,5 +1,6 @@
/* Native-dependent code for GNU/Linux on MIPS processors.
Copyright 2001 Free Software Foundation, Inc.
Copyright 2001, 2002 Free Software Foundation, Inc.
This file is part of GDB.
@ -28,9 +29,7 @@
int
mips_linux_cannot_fetch_register (int regno)
{
if (regno >= FP_REGNUM)
return 1;
else if (regno == PS_REGNUM)
if (regno == PS_REGNUM)
return 1;
else if (regno == ZERO_REGNUM)
return 1;
@ -41,9 +40,7 @@ mips_linux_cannot_fetch_register (int regno)
int
mips_linux_cannot_store_register (int regno)
{
if (regno >= FP_REGNUM)
return 1;
else if (regno == PS_REGNUM)
if (regno == PS_REGNUM)
return 1;
else if (regno == ZERO_REGNUM)
return 1;

4
gdb/mips-linux-tdep.c
View File

@ -1,5 +1,6 @@
/* Target-dependent code for GNU/Linux on MIPS processors.
Copyright 2001 Free Software Foundation, Inc.
Copyright 2001, 2002 Free Software Foundation, Inc.
This file is part of GDB.
@ -100,7 +101,6 @@ supply_gregset (elf_gregset_t *gregsetp)
supply_register (CAUSE_REGNUM, (char *)(regp + EF_CP0_CAUSE));
/* Fill inaccessible registers with zero. */
supply_register (FP_REGNUM, zerobuf);
supply_register (UNUSED_REGNUM, zerobuf);
for (regi = FIRST_EMBED_REGNUM; regi < LAST_EMBED_REGNUM; regi++)
supply_register (regi, zerobuf);

8
gdb/mips-tdep.c
View File

@ -388,7 +388,7 @@ char *mips_r3041_reg_names[] = {
"f8", "f9", "f10", "f11", "f12", "f13", "f14", "f15",
"f16", "f17", "f18", "f19", "f20", "f21", "f22", "f23",
"f24", "f25", "f26", "f27", "f28", "f29", "f30", "f31",
"fsr", "fir", "fp", "",
"fsr", "fir", "",/*"fp"*/ "",
"", "", "bus", "ccfg", "", "", "", "",
"", "", "port", "cmp", "", "", "epc", "prid",
};
@ -405,7 +405,7 @@ char *mips_r3051_reg_names[] = {
"f8", "f9", "f10", "f11", "f12", "f13", "f14", "f15",
"f16", "f17", "f18", "f19", "f20", "f21", "f22", "f23",
"f24", "f25", "f26", "f27", "f28", "f29", "f30", "f31",
"fsr", "fir", "fp", "",
"fsr", "fir", ""/*"fp"*/, "",
"inx", "rand", "elo", "", "ctxt", "", "", "",
"", "", "ehi", "", "", "", "epc", "prid",
};
@ -422,7 +422,7 @@ char *mips_r3081_reg_names[] = {
"f8", "f9", "f10", "f11", "f12", "f13", "f14", "f15",
"f16", "f17", "f18", "f19", "f20", "f21", "f22", "f23",
"f24", "f25", "f26", "f27", "f28", "f29", "f30", "f31",
"fsr", "fir", "fp", "",
"fsr", "fir", ""/*"fp"*/, "",
"inx", "rand", "elo", "cfg", "ctxt", "", "", "",
"", "", "ehi", "", "", "", "epc", "prid",
};
@ -5923,7 +5923,7 @@ mips_gdbarch_init (struct gdbarch_info info,
set_gdbarch_register_name (gdbarch, mips_register_name);
set_gdbarch_read_pc (gdbarch, mips_read_pc);
set_gdbarch_write_pc (gdbarch, generic_target_write_pc);
set_gdbarch_read_fp (gdbarch, generic_target_read_fp);
set_gdbarch_read_fp (gdbarch, mips_read_sp); /* Draft FRAME base. */
set_gdbarch_read_sp (gdbarch, mips_read_sp);
set_gdbarch_write_sp (gdbarch, generic_target_write_sp);

6
gdb/mipsnbsd-tdep.c
View File

@ -258,16 +258,14 @@ mipsnbsd_get_longjmp_target (CORE_ADDR *pc)
static int
mipsnbsd_cannot_fetch_register (int regno)
{
return (regno >= FP_REGNUM
|| regno == ZERO_REGNUM
return (regno == ZERO_REGNUM
|| regno == FCRIR_REGNUM);
}
static int
mipsnbsd_cannot_store_register (int regno)
{
return (regno >= FP_REGNUM
|| regno == ZERO_REGNUM
return (regno == ZERO_REGNUM
|| regno == FCRIR_REGNUM);
}