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-rw-r--r--gdb/ChangeLog7
-rw-r--r--gdb/config/mips/tm-mips.h12
-rw-r--r--gdb/irix5-nat.c2
-rw-r--r--gdb/mips-linux-nat.c8
-rw-r--r--gdb/mips-linux-tdep.c8
-rw-r--r--gdb/mips-tdep.c4
-rw-r--r--gdb/mips-tdep.h18
-rw-r--r--gdb/mipsv4-nat.c4
-rw-r--r--gdb/remote-mips.c2
9 files changed, 32 insertions, 33 deletions
diff --git a/gdb/ChangeLog b/gdb/ChangeLog
index 4189edc..e4d4c33 100644
--- a/gdb/ChangeLog
+++ b/gdb/ChangeLog
@@ -1,5 +1,12 @@
2004-10-30 Andrew Cagney <cagney@gnu.org>
+ * mips-tdep.h: Add comments on registers.
+ (MIPS_UNUSED_REGNUM): Define.
+ * config/mips/tm-mips.h (ZERO_REGNUM, UNUSED_REGNUM)
+ (T9_REGNUM, V0_REGNUM, A0_REGNUM): Delete.
+ * irix5-nat.c, mipsv4-nat.c, mips-linux-tdep.c: Update.
+ * mips-linux-nat.c, remote-mips.c: Update.
+
* config/mips/tm-mips.h (t_insn): Delete.
* mips-tdep.c (mips_fetch_instruction, mips_skip_trampoline_code):
Replace t_insn with ULONGEST.
diff --git a/gdb/config/mips/tm-mips.h b/gdb/config/mips/tm-mips.h
index 3fce4fc..678e3f0 100644
--- a/gdb/config/mips/tm-mips.h
+++ b/gdb/config/mips/tm-mips.h
@@ -43,20 +43,8 @@ extern int mips_step_skips_delay (CORE_ADDR);
#define STEP_SKIPS_DELAY_P (1)
#define STEP_SKIPS_DELAY(pc) (mips_step_skips_delay (pc))
-/* Register numbers of various important registers.
- Note that some of these values are "real" register numbers,
- and correspond to the general registers of the machine,
- and some are "phony" register numbers which are too large
- to be actual register numbers as far as the user is concerned
- but do serve to get the desired values when passed to read_register. */
-
-#define ZERO_REGNUM 0 /* read-only register, always 0 */
-#define V0_REGNUM 2 /* Function integer return value */
-#define A0_REGNUM 4 /* Loc of first arg during a subr call */
-#define T9_REGNUM 25 /* Contains address of callee in PIC */
#define RA_REGNUM 31 /* Contains return address value */
#define PS_REGNUM 32 /* Contains processor status */
-#define UNUSED_REGNUM 73 /* Never used, FIXME */
#define FIRST_EMBED_REGNUM 74 /* First CP0 register for embedded use */
#define PRID_REGNUM 89 /* Processor ID */
#define LAST_EMBED_REGNUM 89 /* Last one */
diff --git a/gdb/irix5-nat.c b/gdb/irix5-nat.c
index 5cf6055..182a05a 100644
--- a/gdb/irix5-nat.c
+++ b/gdb/irix5-nat.c
@@ -182,7 +182,7 @@ get_longjmp_target (CORE_ADDR *pc)
CORE_ADDR jb_addr;
buf = alloca (TARGET_PTR_BIT / TARGET_CHAR_BIT);
- jb_addr = read_register (A0_REGNUM);
+ jb_addr = read_register (MIPS_A0_REGNUM);
if (target_read_memory (jb_addr + JB_PC * JB_ELEMENT_SIZE, buf,
TARGET_PTR_BIT / TARGET_CHAR_BIT))
diff --git a/gdb/mips-linux-nat.c b/gdb/mips-linux-nat.c
index f5071ad..6cd9e87 100644
--- a/gdb/mips-linux-nat.c
+++ b/gdb/mips-linux-nat.c
@@ -24,13 +24,13 @@
/* Pseudo registers can not be read. ptrace does not provide a way to
read (or set) PS_REGNUM, and there's no point in reading or setting
- ZERO_REGNUM. We also can not set BADVADDR, CAUSE, or FCRIR via
- ptrace(). */
+ MIPS_ZERO_REGNUM. We also can not set BADVADDR, CAUSE, or FCRIR
+ via ptrace(). */
int
mips_linux_cannot_fetch_register (int regno)
{
- if (regno > ZERO_REGNUM && regno < ZERO_REGNUM + 32)
+ if (regno > MIPS_ZERO_REGNUM && regno < MIPS_ZERO_REGNUM + 32)
return 0;
else if (regno >= mips_regnum (current_gdbarch)->fp0
&& regno <= mips_regnum (current_gdbarch)->fp0 + 32)
@@ -50,7 +50,7 @@ mips_linux_cannot_fetch_register (int regno)
int
mips_linux_cannot_store_register (int regno)
{
- if (regno > ZERO_REGNUM && regno < ZERO_REGNUM + 32)
+ if (regno > MIPS_ZERO_REGNUM && regno < MIPS_ZERO_REGNUM + 32)
return 0;
else if (regno >= FP0_REGNUM && regno <= FP0_REGNUM + 32)
return 0;
diff --git a/gdb/mips-linux-tdep.c b/gdb/mips-linux-tdep.c
index 4b48905..faaa836 100644
--- a/gdb/mips-linux-tdep.c
+++ b/gdb/mips-linux-tdep.c
@@ -76,7 +76,7 @@ mips_linux_get_longjmp_target (CORE_ADDR *pc)
CORE_ADDR jb_addr;
char buf[TARGET_PTR_BIT / TARGET_CHAR_BIT];
- jb_addr = read_register (A0_REGNUM);
+ jb_addr = read_register (MIPS_A0_REGNUM);
if (target_read_memory (jb_addr
+ MIPS_LINUX_JB_PC * MIPS_LINUX_JB_ELEMENT_SIZE,
@@ -129,7 +129,7 @@ supply_gregset (elf_gregset_t *gregsetp)
(char *)(regp + EF_CP0_CAUSE));
/* Fill inaccessible registers with zero. */
- regcache_raw_supply (current_regcache, UNUSED_REGNUM, zerobuf);
+ regcache_raw_supply (current_regcache, MIPS_UNUSED_REGNUM, zerobuf);
for (regi = FIRST_EMBED_REGNUM; regi < LAST_EMBED_REGNUM; regi++)
regcache_raw_supply (current_regcache, regi, zerobuf);
}
@@ -367,7 +367,7 @@ mips64_linux_get_longjmp_target (CORE_ADDR *pc)
void *buf = alloca (TARGET_PTR_BIT / TARGET_CHAR_BIT);
int element_size = TARGET_PTR_BIT == 32 ? 4 : 8;
- jb_addr = read_register (A0_REGNUM);
+ jb_addr = read_register (MIPS_A0_REGNUM);
if (target_read_memory (jb_addr + MIPS64_LINUX_JB_PC * element_size,
buf, TARGET_PTR_BIT / TARGET_CHAR_BIT))
@@ -408,7 +408,7 @@ mips64_supply_gregset (mips64_elf_gregset_t *gregsetp)
(char *)(regp + MIPS64_EF_CP0_CAUSE));
/* Fill inaccessible registers with zero. */
- regcache_raw_supply (current_regcache, UNUSED_REGNUM, zerobuf);
+ regcache_raw_supply (current_regcache, MIPS_UNUSED_REGNUM, zerobuf);
for (regi = FIRST_EMBED_REGNUM; regi < LAST_EMBED_REGNUM; regi++)
regcache_raw_supply (current_regcache, regi, zerobuf);
}
diff --git a/gdb/mips-tdep.c b/gdb/mips-tdep.c
index 8ec9645..b27bc20 100644
--- a/gdb/mips-tdep.c
+++ b/gdb/mips-tdep.c
@@ -5375,10 +5375,6 @@ mips_dump_tdep (struct gdbarch *current_gdbarch, struct ui_file *file)
"mips_dump_tdep: TRACE_SET # %s\n",
XSTRING (TRACE_SET (X, STATE)));
#endif
-#ifdef UNUSED_REGNUM
- fprintf_unfiltered (file,
- "mips_dump_tdep: UNUSED_REGNUM = %d\n", UNUSED_REGNUM);
-#endif
fprintf_unfiltered (file,
"mips_dump_tdep: VM_MIN_ADDRESS = %ld\n",
(long) VM_MIN_ADDRESS);
diff --git a/gdb/mips-tdep.h b/gdb/mips-tdep.h
index 404ec7d..9dac4c2 100644
--- a/gdb/mips-tdep.h
+++ b/gdb/mips-tdep.h
@@ -61,13 +61,20 @@ struct mips_regnum
};
extern const struct mips_regnum *mips_regnum (struct gdbarch *gdbarch);
+/* Register numbers of various important registers. Note that some of
+ these values are "real" register numbers, and correspond to the
+ general registers of the machine, and some are "phony" register
+ numbers which are too large to be actual register numbers as far as
+ the user is concerned but do serve to get the desired values when
+ passed to read_register. */
+
enum
{
- MIPS_ZERO_REGNUM = 0,
+ MIPS_ZERO_REGNUM = 0, /* Read-only register, always 0. */
MIPS_AT_REGNUM = 1,
- MIPS_V0_REGNUM = 2,
- MIPS_A0_REGNUM = 4,
- MIPS_T9_REGNUM = 25,
+ MIPS_V0_REGNUM = 2, /* Function integer return value. */
+ MIPS_A0_REGNUM = 4, /* Loc of first arg during a subr call */
+ MIPS_T9_REGNUM = 25, /* Contains address of callee in PIC. */
MIPS_SP_REGNUM = 29,
MIPS_RA_REGNUM = 31,
MIPS_EMBED_LO_REGNUM = 33,
@@ -75,7 +82,8 @@ enum
MIPS_EMBED_BADVADDR_REGNUM = 35,
MIPS_EMBED_CAUSE_REGNUM = 36,
MIPS_EMBED_PC_REGNUM = 37,
- MIPS_EMBED_FP0_REGNUM = 38
+ MIPS_EMBED_FP0_REGNUM = 38,
+ MIPS_UNUSED_REGNUM = 73 /* Never used, FIXME */
};
/* Defined in mips-tdep.c and used in remote-mips.c */
diff --git a/gdb/mipsv4-nat.c b/gdb/mipsv4-nat.c
index 53e286a..75956c1 100644
--- a/gdb/mipsv4-nat.c
+++ b/gdb/mipsv4-nat.c
@@ -68,7 +68,7 @@ supply_gregset (gregset_t *gregsetp)
mips_regnum (current_gdbarch)->badvaddr,
zerobuf);
regcache_raw_supply (current_regcache, DEPRECATED_FP_REGNUM, zerobuf);
- regcache_raw_supply (current_regcache, UNUSED_REGNUM, zerobuf);
+ regcache_raw_supply (current_regcache, MIPS_UNUSED_REGNUM, zerobuf);
for (regi = FIRST_EMBED_REGNUM; regi <= LAST_EMBED_REGNUM; regi++)
regcache_raw_supply (current_regcache, regi, zerobuf);
}
@@ -161,7 +161,7 @@ get_longjmp_target (CORE_ADDR *pc)
CORE_ADDR jb_addr;
buf = alloca (TARGET_PTR_BIT / TARGET_CHAR_BIT);
- jb_addr = read_register (A0_REGNUM);
+ jb_addr = read_register (MIPS_A0_REGNUM);
if (target_read_memory (jb_addr + _JB_PC * JB_ELEMENT_SIZE, buf,
TARGET_PTR_BIT / TARGET_CHAR_BIT))
diff --git a/gdb/remote-mips.c b/gdb/remote-mips.c
index 2230330..2b40066 100644
--- a/gdb/remote-mips.c
+++ b/gdb/remote-mips.c
@@ -1905,7 +1905,7 @@ mips_fetch_registers (int regno)
return;
}
- if (regno == DEPRECATED_FP_REGNUM || regno == ZERO_REGNUM)
+ if (regno == DEPRECATED_FP_REGNUM || regno == MIPS_ZERO_REGNUM)
/* DEPRECATED_FP_REGNUM on the mips is a hack which is just
supposed to read zero (see also mips-nat.c). */
val = 0;
generated by cgit v1.1 at 2024-12-17 02:12:46 +0000