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-rw-r--r--gdb/ChangeLog19
-rw-r--r--gdb/NEWS8
-rw-r--r--gdb/config/mips/tm-irix6.h6
-rw-r--r--gdb/config/mips/tm-mips.h10
-rw-r--r--gdb/mips-linux-nat.c11
-rw-r--r--gdb/mips-linux-tdep.c4
-rw-r--r--gdb/mips-tdep.c8
-rw-r--r--gdb/mipsnbsd-tdep.c6
8 files changed, 46 insertions, 26 deletions
diff --git a/gdb/ChangeLog b/gdb/ChangeLog
index 7223ea0..50cc991 100644
--- a/gdb/ChangeLog
+++ b/gdb/ChangeLog
@@ -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
diff --git a/gdb/NEWS b/gdb/NEWS
index e1c1a83..bbd70c4 100644
--- a/gdb/NEWS
+++ b/gdb/NEWS
@@ -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
diff --git a/gdb/config/mips/tm-irix6.h b/gdb/config/mips/tm-irix6.h
index ac710a4..6a91ebc 100644
--- a/gdb/config/mips/tm-irix6.h
+++ b/gdb/config/mips/tm-irix6.h
@@ -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
diff --git a/gdb/config/mips/tm-mips.h b/gdb/config/mips/tm-mips.h
index d87c4a7..ded8e10 100644
--- a/gdb/config/mips/tm-mips.h
+++ b/gdb/config/mips/tm-mips.h
@@ -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 */
diff --git a/gdb/mips-linux-nat.c b/gdb/mips-linux-nat.c
index cec16d3..454520d 100644
--- a/gdb/mips-linux-nat.c
+++ b/gdb/mips-linux-nat.c
@@ -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;
diff --git a/gdb/mips-linux-tdep.c b/gdb/mips-linux-tdep.c
index b8d41db..03279d8 100644
--- a/gdb/mips-linux-tdep.c
+++ b/gdb/mips-linux-tdep.c
@@ -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);
diff --git a/gdb/mips-tdep.c b/gdb/mips-tdep.c
index 683faa4..79b189c 100644
--- a/gdb/mips-tdep.c
+++ b/gdb/mips-tdep.c
@@ -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);
diff --git a/gdb/mipsnbsd-tdep.c b/gdb/mipsnbsd-tdep.c
index 3367e36..73ba384 100644
--- a/gdb/mipsnbsd-tdep.c
+++ b/gdb/mipsnbsd-tdep.c
@@ -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);
}
generated by cgit v1.1 at 2024-11-27 16:28:57 +0000