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authorJason Thorpe <thorpej@netbsd.org>2002-01-18 17:47:13 +0000
committerJason Thorpe <thorpej@netbsd.org>2002-01-18 17:47:13 +0000
commite771a8713483f7e8ce3fb5057dfe0ad7656dbb6a (patch)
tree4302739f133ab93c6e1dbf89566ef0f826d7da95 /gdb/alphabsd-nat.c
parent395213c84649cdb5bf4f690896a1e3042fb2573d (diff)
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* alphabsd-nat.c: Update copyright years.
(fill_gregset): Use regcache_collect. (fill_fpregset): Likewise. (fetch_inferior_registers): Only fetch integer registers if requested to do so. (store_inferior_registers): Only store integer registers if requested to do so.
Diffstat (limited to 'gdb/alphabsd-nat.c')
-rw-r--r--gdb/alphabsd-nat.c64
1 files changed, 42 insertions, 22 deletions
diff --git a/gdb/alphabsd-nat.c b/gdb/alphabsd-nat.c
index 5e7a361..d7ad3a7 100644
--- a/gdb/alphabsd-nat.c
+++ b/gdb/alphabsd-nat.c
@@ -1,5 +1,5 @@
/* Native-dependent code for Alpha BSD's.
- Copyright 2000, 2001 Free Software Foundation, Inc.
+ Copyright 2000, 2001, 2002 Free Software Foundation, Inc.
This file is part of GDB.
@@ -80,13 +80,11 @@ fill_gregset (gregset_t *gregsetp, int regno)
for (i = 0; i < NUM_GREGS; i++)
if ((regno == -1 || regno == i) && ! CANNOT_STORE_REGISTER (i))
- memcpy (&gregsetp->r_regs[i], &registers[REGISTER_BYTE (i)],
- REGISTER_RAW_SIZE (i));
+ regcache_collect (i, (char *) &gregsetp->r_regs[i]);
/* The PC travels in the R_ZERO slot. */
if (regno == -1 || regno == PC_REGNUM)
- memcpy (&gregsetp->r_regs[R_ZERO], &registers[REGISTER_BYTE (PC_REGNUM)],
- REGISTER_RAW_SIZE (PC_REGNUM));
+ regcache_collect (PC_REGNUM, (char *) &gregsetp->r_regs[R_ZERO]);
}
/* Fill GDB's register array with the floating-point register values
@@ -119,27 +117,43 @@ fill_fpregset (fpregset_t *fpregsetp, int regno)
for (i = FP0_REGNUM; i < FP0_REGNUM + NUM_FPREGS; i++)
if ((regno == -1 || regno == i) && ! CANNOT_STORE_REGISTER (i))
- memcpy (&fpregsetp->fpr_regs[i - FP0_REGNUM],
- &registers[REGISTER_BYTE (i)], REGISTER_RAW_SIZE (i));
+ regcache_collect (i, (char *) &fpregsetp->fpr_regs[i - FP0_REGNUM]);
if (regno == -1 || regno == FPCR_REGNUM)
- memcpy (&fpregsetp->fpr_cr, &registers[REGISTER_BYTE (FPCR_REGNUM)],
- REGISTER_RAW_SIZE (FPCR_REGNUM));
+ regcache_collect (FPCR_REGNUM, (char *) &fpregsetp->fpr_cr);
}
+
+/* Determine if PT_GETREGS fetches this register. */
+
+static int
+getregs_supplies (int regno)
+{
+
+ return ((regno >= V0_REGNUM && regno <= ZERO_REGNUM)
+ || regno >= PC_REGNUM);
+}
+
+
/* Fetch register REGNO from the inferior. If REGNO is -1, do this
for all registers (including the floating point registers). */
void
fetch_inferior_registers (int regno)
{
- gregset_t gregs;
- if (ptrace (PT_GETREGS, PIDGET (inferior_ptid),
- (PTRACE_ARG3_TYPE) &gregs, 0) == -1)
- perror_with_name ("Couldn't get registers");
+ if (regno == -1 || getregs_supplies (regno))
+ {
+ gregset_t gregs;
+
+ if (ptrace (PT_GETREGS, PIDGET (inferior_ptid),
+ (PTRACE_ARG3_TYPE) &gregs, 0) == -1)
+ perror_with_name ("Couldn't get registers");
- supply_gregset (&gregs);
+ supply_gregset (&gregs);
+ if (regno != -1)
+ return;
+ }
if (regno == -1 || regno >= FP0_REGNUM)
{
@@ -162,17 +176,23 @@ fetch_inferior_registers (int regno)
void
store_inferior_registers (int regno)
{
- gregset_t gregs;
- if (ptrace (PT_GETREGS, PIDGET (inferior_ptid),
- (PTRACE_ARG3_TYPE) &gregs, 0) == -1)
- perror_with_name ("Couldn't get registers");
+ if (regno == -1 || getregs_supplies (regno))
+ {
+ gregset_t gregs;
+ if (ptrace (PT_GETREGS, PIDGET (inferior_ptid),
+ (PTRACE_ARG3_TYPE) &gregs, 0) == -1)
+ perror_with_name ("Couldn't get registers");
+
+ fill_gregset (&gregs, regno);
- fill_gregset (&gregs, regno);
+ if (ptrace (PT_SETREGS, PIDGET (inferior_ptid),
+ (PTRACE_ARG3_TYPE) &gregs, 0) == -1)
+ perror_with_name ("Couldn't write registers");
- if (ptrace (PT_SETREGS, PIDGET (inferior_ptid),
- (PTRACE_ARG3_TYPE) &gregs, 0) == -1)
- perror_with_name ("Couldn't write registers");
+ if (regno != -1)
+ return;
+ }
if (regno == -1 || regno >= FP0_REGNUM)
{