aboutsummaryrefslogtreecommitdiff
path: root/gdb/hppa-netbsd-nat.c
diff options
context:
space:
mode:
Diffstat (limited to 'gdb/hppa-netbsd-nat.c')
-rw-r--r--gdb/hppa-netbsd-nat.c238
1 files changed, 238 insertions, 0 deletions
diff --git a/gdb/hppa-netbsd-nat.c b/gdb/hppa-netbsd-nat.c
new file mode 100644
index 0000000..a3a2e32
--- /dev/null
+++ b/gdb/hppa-netbsd-nat.c
@@ -0,0 +1,238 @@
+/* Native-dependent code for NetBSD/hppa.
+
+ Copyright (C) 2008-2020 Free Software Foundation, Inc.
+
+ This file is part of GDB.
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 3 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program. If not, see <http://www.gnu.org/licenses/>. */
+
+#include "defs.h"
+#include "inferior.h"
+#include "regcache.h"
+
+#include <sys/types.h>
+#include <sys/ptrace.h>
+#include <machine/reg.h>
+
+#include "hppa-tdep.h"
+#include "inf-ptrace.h"
+
+#include "netbsd-nat.h"
+
+class hppa_nbsd_nat_target final : public nbsd_nat_target
+{
+ void fetch_registers (struct regcache *, int) override;
+ void store_registers (struct regcache *, int) override;
+};
+
+static hppa_nbsd_nat_target the_hppa_nbsd_nat_target;
+
+static int
+hppanbsd_gregset_supplies_p (int regnum)
+{
+ return ((regnum >= HPPA_R0_REGNUM && regnum <= HPPA_R31_REGNUM) ||
+ (regnum >= HPPA_SAR_REGNUM && regnum <= HPPA_PCSQ_TAIL_REGNUM) ||
+ regnum == HPPA_IPSW_REGNUM ||
+ (regnum >= HPPA_SR4_REGNUM && regnum <= HPPA_SR4_REGNUM + 5));
+}
+
+static int
+hppanbsd_fpregset_supplies_p (int regnum)
+{
+ return (regnum >= HPPA_FP0_REGNUM && regnum <= HPPA_FP31R_REGNUM);
+}
+
+/* Supply the general-purpose registers stored in GREGS to REGCACHE. */
+
+static void
+hppanbsd_supply_gregset (struct regcache *regcache, const void *gregs)
+{
+ const char *regs = gregs;
+ const int *r = gregs;
+ int regnum;
+
+ for (regnum = HPPA_R1_REGNUM; regnum <= HPPA_R31_REGNUM; regnum++)
+ regcache->raw_supply (regnum, regs + regnum * 4);
+
+ regcache->raw_supply (HPPA_SAR_REGNUM, regs + 32 * 4);
+ regcache->raw_supply (HPPA_PCSQ_HEAD_REGNUM, regs + 33 * 4);
+ regcache->raw_supply (HPPA_PCSQ_TAIL_REGNUM, regs + 34 * 4);
+ regcache->raw_supply (HPPA_PCOQ_HEAD_REGNUM, regs + 35 * 4);
+ regcache->raw_supply (HPPA_PCOQ_TAIL_REGNUM, regs + 36 * 4);
+ regcache->raw_supply (HPPA_IPSW_REGNUM, regs);
+ regcache->raw_supply (HPPA_SR4_REGNUM, regs + 41 * 4);
+ regcache->raw_supply (HPPA_SR4_REGNUM + 1, regs + 37 * 4);
+ regcache->raw_supply (HPPA_SR4_REGNUM + 2, regs + 38 * 4);
+ regcache->raw_supply (HPPA_SR4_REGNUM + 3, regs + 39 * 4);
+ regcache->raw_supply (HPPA_SR4_REGNUM + 4, regs + 40 * 4);
+}
+
+/* Supply the floating-point registers stored in FPREGS to REGCACHE. */
+
+static void
+hppanbsd_supply_fpregset (struct regcache *regcache, const void *fpregs)
+{
+ const char *regs = fpregs;
+ int regnum;
+
+ for (regnum = HPPA_FP0_REGNUM; regnum <= HPPA_FP31R_REGNUM;
+ regnum += 2, regs += 8)
+ {
+ regcache->raw_supply (regnum, regs);
+ regcache->raw_supply (regnum + 1, regs + 4);
+ }
+}
+
+/* Collect the general-purpose registers from REGCACHE and store them
+ in GREGS. */
+
+static void
+hppanbsd_collect_gregset (const struct regcache *regcache,
+ void *gregs, int regnum)
+{
+ char *regs = gregs;
+ int *r = gregs;
+ int i;
+
+ for (i = HPPA_R1_REGNUM; i <= HPPA_R31_REGNUM; i++)
+ {
+ if (regnum == -1 || regnum == i)
+ regcache->raw_collect (i, regs + i * 4);
+ }
+
+ if (regnum == -1 || regnum == HPPA_IPSW_REGNUM)
+ regcache->raw_collect (HPPA_IPSW_REGNUM, regs);
+ if (regnum == -1 || regnum == HPPA_PCOQ_HEAD_REGNUM)
+ regcache->raw_collect (HPPA_PCOQ_HEAD_REGNUM, regs + 35 * 4);
+ if (regnum == -1 || regnum == HPPA_PCOQ_TAIL_REGNUM)
+ regcache->raw_collect (HPPA_PCOQ_TAIL_REGNUM, regs + 36 * 4);
+
+ if (regnum == -1 || regnum == HPPA_SAR_REGNUM)
+ regcache->raw_collect (HPPA_SAR_REGNUM, regs + 32 * 4);
+ if (regnum == -1 || regnum == HPPA_PCSQ_HEAD_REGNUM)
+ regcache->raw_collect (HPPA_PCSQ_HEAD_REGNUM, regs + 33 * 4);
+ if (regnum == -1 || regnum == HPPA_PCSQ_TAIL_REGNUM)
+ regcache->raw_collect (HPPA_PCSQ_TAIL_REGNUM, regs + 34 * 4);
+ if (regnum == -1 || regnum == HPPA_PCOQ_HEAD_REGNUM)
+ regcache->raw_collect (HPPA_PCOQ_HEAD_REGNUM, regs + 35 * 4);
+ if (regnum == -1 || regnum == HPPA_PCOQ_TAIL_REGNUM)
+ regcache->raw_collect (HPPA_PCOQ_TAIL_REGNUM, regs + 36 * 4);
+ if (regnum == -1 || regnum == HPPA_IPSW_REGNUM)
+ regcache->raw_collect (HPPA_IPSW_REGNUM, regs);
+ if (regnum == -1 || regnum == HPPA_SR4_REGNUM)
+ regcache->raw_collect (HPPA_SR4_REGNUM, regs + 41 * 4);
+ if (regnum == -1 || regnum == HPPA_SR4_REGNUM + 1)
+ regcache->raw_collect (HPPA_SR4_REGNUM + 1, regs + 37 * 4);
+ if (regnum == -1 || regnum == HPPA_SR4_REGNUM + 2)
+ regcache->raw_collect (HPPA_SR4_REGNUM + 2, regs + 38 * 4);
+ if (regnum == -1 || regnum == HPPA_SR4_REGNUM + 3)
+ regcache->raw_collect (HPPA_SR4_REGNUM + 3, regs + 39 * 4);
+ if (regnum == -1 || regnum == HPPA_SR4_REGNUM + 4)
+ regcache->raw_collect (HPPA_SR4_REGNUM + 4, regs + 40 * 4);
+}
+
+/* Collect the floating-point registers from REGCACHE and store them
+ in FPREGS. */
+
+static void
+hppanbsd_collect_fpregset (struct regcache *regcache,
+ void *fpregs, int regnum)
+{
+ char *regs = fpregs;
+ int i;
+
+ for (i = HPPA_FP0_REGNUM; i <= HPPA_FP31R_REGNUM; i += 2, regs += 8)
+ {
+ if (regnum == -1 || regnum == i || regnum == i + 1)
+ {
+ regcache->raw_collect (i, regs);
+ regcache->raw_collect (i + 1, regs + 4);
+ }
+ }
+}
+
+
+/* Fetch register REGNUM from the inferior. If REGNUM is -1, do this
+ for all registers (including the floating-point registers). */
+
+void
+hppa_nbsd_nat_target::fetch_registers (struct regcache *regcache, int regnum)
+
+{
+ pid_t pid = regcache->ptid ().pid ();
+ int lwp = regcache->ptid ().lwp ();
+
+ if (regnum == -1 || hppanbsd_gregset_supplies_p (regnum))
+ {
+ struct reg regs;
+
+ if (ptrace (PT_GETREGS, pid, (PTRACE_TYPE_ARG3) &regs, lwp) == -1)
+ perror_with_name (_("Couldn't get registers"));
+
+ hppanbsd_supply_gregset (regcache, &regs);
+ }
+
+ if (regnum == -1 || hppanbsd_fpregset_supplies_p (regnum))
+ {
+ struct fpreg fpregs;
+
+ if (ptrace (PT_GETFPREGS, pid, (PTRACE_TYPE_ARG3) &fpregs, lwp) == -1)
+ perror_with_name (_("Couldn't get floating point status"));
+
+ hppanbsd_supply_fpregset (regcache, &fpregs);
+ }
+}
+
+/* Store register REGNUM back into the inferior. If REGNUM is -1, do
+ this for all registers (including the floating-point registers). */
+
+void
+hppa_nbsd_nat_target::store_registers (struct regcache *regcache, int regnum)
+{
+ pid_t pid = regcache->ptid ().pid ();
+ int lwp = regcache->ptid ().lwp ();
+
+ if (regnum == -1 || hppanbsd_gregset_supplies_p (regnum))
+ {
+ struct reg regs;
+
+ if (ptrace (PT_GETREGS, pid, (PTRACE_TYPE_ARG3) &regs, lwp) == -1)
+ perror_with_name (_("Couldn't get registers"));
+
+ hppanbsd_collect_gregset (regcache, &regs, regnum);
+
+ if (ptrace (PT_SETREGS, pid, (PTRACE_TYPE_ARG3) &regs, lwp) == -1)
+ perror_with_name (_("Couldn't write registers"));
+ }
+
+ if (regnum == -1 || hppanbsd_fpregset_supplies_p (regnum))
+ {
+ struct fpreg fpregs;
+
+ if (ptrace (PT_GETFPREGS, pid, (PTRACE_TYPE_ARG3) &fpregs, lwp) == -1)
+ perror_with_name (_("Couldn't get floating point status"));
+
+ hppanbsd_collect_fpregset (regcache, &fpregs, regnum);
+
+ if (ptrace (PT_SETFPREGS, pid, (PTRACE_TYPE_ARG3) &fpregs, lwp) == -1)
+ perror_with_name (_("Couldn't write floating point status"));
+ }
+}
+
+void _initialize_hppanbsd_nat ();
+void
+_initialize_hppanbsd_nat ()
+{
+ add_inf_child_target (&the_hppa_nbsd_nat_target);
+}
generated by cgit v1.1 at 2024-11-27 14:35:15 +0000