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 2 of the License, or
+ 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,
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, write to the Free Software
- Foundation, Inc., 51 Franklin Street, Fifth Floor,
- Boston, MA 02110-1301, USA. */
+ along with this program. If not, see <http://www.gnu.org/licenses/>. */
#include "defs.h"
#include "inferior.h"
#include "rs6000-tdep.h"
#include "exec.h"
#include "gdb_stdint.h"
+#include "observer.h"
#include <sys/ptrace.h>
#include <sys/reg.h>
# define ARCH64() (register_size (current_gdbarch, 0) == 8)
#endif
-/* Union of 32-bit and 64-bit ".reg" core file sections. */
-
-typedef union {
-#ifdef ARCH3264
- struct __context64 r64;
-#else
- struct mstsave r64;
-#endif
- struct mstsave r32;
-} CoreRegs;
-
/* Union of 32-bit and 64-bit versions of ld_info. */
typedef union {
static void vmap_symtab (struct vmap *);
-static void fetch_core_registers (char *, unsigned int, int, CORE_ADDR);
-
static void exec_one_dummy_insn (void);
extern void fixup_breakpoints (CORE_ADDR low, CORE_ADDR high, CORE_ADDR delta);
*isfloat = 1;
return regno - tdep->ppc_fp0_regnum + FPR0;
}
- else if (regno == PC_REGNUM)
+ else if (regno == gdbarch_pc_regnum (current_gdbarch))
return IAR;
else if (regno == tdep->ppc_ps_regnum)
return MSR;
/* Fetch register REGNO from the inferior. */
static void
-fetch_register (int regno)
+fetch_register (struct regcache *regcache, int regno)
{
int addr[MAX_REGISTER_SIZE];
int nr, isfloat;
/* Bogus register number. */
else if (nr < 0)
{
- if (regno >= NUM_REGS)
+ if (regno >= gdbarch_num_regs (current_gdbarch))
fprintf_unfiltered (gdb_stderr,
"gdb error: register no %d not implemented.\n",
regno);
}
if (!errno)
- regcache_raw_supply (current_regcache, regno, (char *) addr);
+ regcache_raw_supply (regcache, regno, (char *) addr);
else
{
#if 0
/* Store register REGNO back into the inferior. */
static void
-store_register (int regno)
+store_register (const struct regcache *regcache, int regno)
{
int addr[MAX_REGISTER_SIZE];
int nr, isfloat;
/* Fetch the register's value from the register cache. */
- regcache_raw_collect (current_regcache, regno, addr);
+ regcache_raw_collect (regcache, regno, addr);
/* -1 can be a successful return value, so infer errors from errno. */
errno = 0;
/* Bogus register number. */
else if (nr < 0)
{
- if (regno >= NUM_REGS)
+ if (regno >= gdbarch_num_regs (current_gdbarch))
fprintf_unfiltered (gdb_stderr,
"gdb error: register no %d not implemented.\n",
regno);
/* Fixed-point registers. */
else
{
- if (regno == SP_REGNUM)
+ if (regno == gdbarch_sp_regnum (current_gdbarch))
/* Execute one dummy instruction (which is a breakpoint) in inferior
process to give kernel a chance to do internal housekeeping.
Otherwise the following ptrace(2) calls will mess up user stack
REGNO otherwise. */
static void
-rs6000_fetch_inferior_registers (int regno)
+rs6000_fetch_inferior_registers (struct regcache *regcache, int regno)
{
if (regno != -1)
- fetch_register (regno);
+ fetch_register (regcache, regno);
else
{
regno < tdep->ppc_gp0_regnum + ppc_num_gprs;
regno++)
{
- fetch_register (regno);
+ fetch_register (regcache, regno);
}
/* Read general purpose floating point registers. */
if (tdep->ppc_fp0_regnum >= 0)
for (regno = 0; regno < ppc_num_fprs; regno++)
- fetch_register (tdep->ppc_fp0_regnum + regno);
+ fetch_register (regcache, tdep->ppc_fp0_regnum + regno);
/* Read special registers. */
- fetch_register (PC_REGNUM);
- fetch_register (tdep->ppc_ps_regnum);
- fetch_register (tdep->ppc_cr_regnum);
- fetch_register (tdep->ppc_lr_regnum);
- fetch_register (tdep->ppc_ctr_regnum);
- fetch_register (tdep->ppc_xer_regnum);
+ fetch_register (regcache, gdbarch_pc_regnum (current_gdbarch));
+ fetch_register (regcache, tdep->ppc_ps_regnum);
+ fetch_register (regcache, tdep->ppc_cr_regnum);
+ fetch_register (regcache, tdep->ppc_lr_regnum);
+ fetch_register (regcache, tdep->ppc_ctr_regnum);
+ fetch_register (regcache, tdep->ppc_xer_regnum);
if (tdep->ppc_fpscr_regnum >= 0)
- fetch_register (tdep->ppc_fpscr_regnum);
+ fetch_register (regcache, tdep->ppc_fpscr_regnum);
if (tdep->ppc_mq_regnum >= 0)
- fetch_register (tdep->ppc_mq_regnum);
+ fetch_register (regcache, tdep->ppc_mq_regnum);
}
}
Otherwise, REGNO specifies which register (so we can save time). */
static void
-rs6000_store_inferior_registers (int regno)
+rs6000_store_inferior_registers (struct regcache *regcache, int regno)
{
if (regno != -1)
- store_register (regno);
+ store_register (regcache, regno);
else
{
regno < tdep->ppc_gp0_regnum + ppc_num_gprs;
regno++)
{
- store_register (regno);
+ store_register (regcache, regno);
}
/* Write floating point registers. */
if (tdep->ppc_fp0_regnum >= 0)
for (regno = 0; regno < ppc_num_fprs; regno++)
- store_register (tdep->ppc_fp0_regnum + regno);
+ store_register (regcache, tdep->ppc_fp0_regnum + regno);
/* Write special registers. */
- store_register (PC_REGNUM);
- store_register (tdep->ppc_ps_regnum);
- store_register (tdep->ppc_cr_regnum);
- store_register (tdep->ppc_lr_regnum);
- store_register (tdep->ppc_ctr_regnum);
- store_register (tdep->ppc_xer_regnum);
+ store_register (regcache, gdbarch_pc_regnum (current_gdbarch));
+ store_register (regcache, tdep->ppc_ps_regnum);
+ store_register (regcache, tdep->ppc_cr_regnum);
+ store_register (regcache, tdep->ppc_lr_regnum);
+ store_register (regcache, tdep->ppc_ctr_regnum);
+ store_register (regcache, tdep->ppc_xer_regnum);
if (tdep->ppc_fpscr_regnum >= 0)
- store_register (tdep->ppc_fpscr_regnum);
+ store_register (regcache, tdep->ppc_fpscr_regnum);
if (tdep->ppc_mq_regnum >= 0)
- store_register (tdep->ppc_mq_regnum);
+ store_register (regcache, tdep->ppc_mq_regnum);
}
}
}
}
+/* Wait for the child specified by PTID to do something. Return the
+ process ID of the child, or MINUS_ONE_PTID in case of error; store
+ the status in *OURSTATUS. */
+
+static ptid_t
+rs6000_wait (ptid_t ptid, struct target_waitstatus *ourstatus)
+{
+ pid_t pid;
+ int status, save_errno;
+
+ do
+ {
+ set_sigint_trap ();
+ set_sigio_trap ();
+
+ do
+ {
+ pid = waitpid (ptid_get_pid (ptid), &status, 0);
+ save_errno = errno;
+ }
+ while (pid == -1 && errno == EINTR);
+
+ clear_sigio_trap ();
+ clear_sigint_trap ();
+
+ if (pid == -1)
+ {
+ fprintf_unfiltered (gdb_stderr,
+ _("Child process unexpectedly missing: %s.\n"),
+ safe_strerror (save_errno));
+
+ /* Claim it exited with unknown signal. */
+ ourstatus->kind = TARGET_WAITKIND_SIGNALLED;
+ ourstatus->value.sig = TARGET_SIGNAL_UNKNOWN;
+ return minus_one_ptid;
+ }
+
+ /* Ignore terminated detached child processes. */
+ if (!WIFSTOPPED (status) && pid != ptid_get_pid (inferior_ptid))
+ pid = -1;
+ }
+ while (pid == -1);
+
+ /* AIX has a couple of strange returns from wait(). */
+
+ /* stop after load" status. */
+ if (status == 0x57c)
+ ourstatus->kind = TARGET_WAITKIND_LOADED;
+ /* signal 0. I have no idea why wait(2) returns with this status word. */
+ else if (status == 0x7f)
+ ourstatus->kind = TARGET_WAITKIND_SPURIOUS;
+ /* A normal waitstatus. Let the usual macros deal with it. */
+ else
+ store_waitstatus (ourstatus, status);
+
+ return pid_to_ptid (pid);
+}
/* Execute one dummy breakpoint instruction. This way we give the kernel
a chance to do some housekeeping and update inferior's internal data,
write_pc (prev_pc);
deprecated_remove_raw_breakpoint (bp);
}
-
-/* Fetch registers from the register section in core bfd. */
-
-static void
-fetch_core_registers (char *core_reg_sect, unsigned core_reg_size,
- int which, CORE_ADDR reg_addr)
-{
- CoreRegs *regs;
- int regi;
- struct gdbarch_tdep *tdep = gdbarch_tdep (current_gdbarch);
-
- if (which != 0)
- {
- fprintf_unfiltered
- (gdb_stderr,
- "Gdb error: unknown parameter to fetch_core_registers().\n");
- return;
- }
-
- regs = (CoreRegs *) core_reg_sect;
-
- /* Put the register values from the core file section in the regcache. */
-
- if (ARCH64 ())
- {
- for (regi = 0; regi < ppc_num_gprs; regi++)
- regcache_raw_supply (current_regcache, tdep->ppc_gp0_regnum + regi,
- (char *) ®s->r64.gpr[regi]);
-
- if (tdep->ppc_fp0_regnum >= 0)
- for (regi = 0; regi < ppc_num_fprs; regi++)
- regcache_raw_supply (current_regcache, tdep->ppc_fp0_regnum + regi,
- (char *) ®s->r64.fpr[regi]);
-
- regcache_raw_supply (current_regcache, PC_REGNUM,
- (char *) ®s->r64.iar);
- regcache_raw_supply (current_regcache, tdep->ppc_ps_regnum,
- (char *) ®s->r64.msr);
- regcache_raw_supply (current_regcache, tdep->ppc_cr_regnum,
- (char *) ®s->r64.cr);
- regcache_raw_supply (current_regcache, tdep->ppc_lr_regnum,
- (char *) ®s->r64.lr);
- regcache_raw_supply (current_regcache, tdep->ppc_ctr_regnum,
- (char *) ®s->r64.ctr);
- regcache_raw_supply (current_regcache, tdep->ppc_xer_regnum,
- (char *) ®s->r64.xer);
- if (tdep->ppc_fpscr_regnum >= 0)
- regcache_raw_supply (current_regcache, tdep->ppc_fpscr_regnum,
- (char *) ®s->r64.fpscr);
- }
- else
- {
- for (regi = 0; regi < ppc_num_gprs; regi++)
- regcache_raw_supply (current_regcache, tdep->ppc_gp0_regnum + regi,
- (char *) ®s->r32.gpr[regi]);
-
- if (tdep->ppc_fp0_regnum >= 0)
- for (regi = 0; regi < ppc_num_fprs; regi++)
- regcache_raw_supply (current_regcache, tdep->ppc_fp0_regnum + regi,
- (char *) ®s->r32.fpr[regi]);
-
- regcache_raw_supply (current_regcache, PC_REGNUM,
- (char *) ®s->r32.iar);
- regcache_raw_supply (current_regcache, tdep->ppc_ps_regnum,
- (char *) ®s->r32.msr);
- regcache_raw_supply (current_regcache, tdep->ppc_cr_regnum,
- (char *) ®s->r32.cr);
- regcache_raw_supply (current_regcache, tdep->ppc_lr_regnum,
- (char *) ®s->r32.lr);
- regcache_raw_supply (current_regcache, tdep->ppc_ctr_regnum,
- (char *) ®s->r32.ctr);
- regcache_raw_supply (current_regcache, tdep->ppc_xer_regnum,
- (char *) ®s->r32.xer);
- if (tdep->ppc_fpscr_regnum >= 0)
- regcache_raw_supply (current_regcache, tdep->ppc_fpscr_regnum,
- (char *) ®s->r32.fpscr);
- if (tdep->ppc_mq_regnum >= 0)
- regcache_raw_supply (current_regcache, tdep->ppc_mq_regnum,
- (char *) ®s->r32.mq);
- }
-}
\f
/* Copy information about text and data sections from LDI to VP for a 64-bit
/* Announce new object files. Doing this after symbol relocation
makes aix-thread.c's job easier. */
- if (deprecated_target_new_objfile_hook && vp->objfile)
- deprecated_target_new_objfile_hook (vp->objfile);
+ if (vp->objfile)
+ observer_notify_new_objfile (vp->objfile);
/* There may be more, so we don't break out of the loop. */
}
/* Set the current architecture from the host running GDB. Called when
starting a child process. */
-void
-rs6000_create_inferior (int pid)
+static void (*super_create_inferior) (char *exec_file, char *allargs,
+ char **env, int from_tty);
+static void
+rs6000_create_inferior (char *exec_file, char *allargs, char **env, int from_tty)
{
enum bfd_architecture arch;
unsigned long mach;
bfd abfd;
struct gdbarch_info info;
+ super_create_inferior (exec_file, allargs, env, from_tty);
+
if (__power_rs ())
{
arch = bfd_arch_rs6000;
\f
/* xcoff_relocate_symtab - hook for symbol table relocation.
- also reads shared libraries. */
+
+ This is only applicable to live processes, and is a no-op when
+ debugging a core file. */
void
xcoff_relocate_symtab (unsigned int pid)
int ldisize = arch64 ? sizeof (ldi->l64) : sizeof (ldi->l32);
int size;
+ if (ptid_equal (inferior_ptid, null_ptid))
+ return;
+
do
{
size = load_segs * ldisize;
vmap_symtab (vp);
- if (deprecated_target_new_objfile_hook && vp != vmap && vp->objfile)
- deprecated_target_new_objfile_hook (vp->objfile);
+ if (vp != vmap && vp->objfile)
+ observer_notify_new_objfile (vp->objfile);
}
while (LDI_NEXT (ldi, arch64) != 0);
vmap_exec ();
error (_("Unable to find TOC entry for pc %s."), hex_string (pc));
}
\f
-/* Register that we are able to handle rs6000 core file formats. */
-
-static struct core_fns rs6000_core_fns =
-{
- bfd_target_xcoff_flavour, /* core_flavour */
- default_check_format, /* check_format */
- default_core_sniffer, /* core_sniffer */
- fetch_core_registers, /* core_read_registers */
- NULL /* next */
-};
void
-_initialize_core_rs6000 (void)
+_initialize_rs6000_nat (void)
{
struct target_ops *t;
t->to_fetch_registers = rs6000_fetch_inferior_registers;
t->to_store_registers = rs6000_store_inferior_registers;
t->to_xfer_partial = rs6000_xfer_partial;
+
+ super_create_inferior = t->to_create_inferior;
+ t->to_create_inferior = rs6000_create_inferior;
+
+ t->to_wait = rs6000_wait;
+
add_target (t);
/* Initialize hook in rs6000-tdep.c for determining the TOC address
when calling functions in the inferior. */
rs6000_find_toc_address_hook = find_toc_address;
-
- deprecated_add_core_fns (&rs6000_core_fns);
}
projects / deliverable / binutils-gdb.git / blobdiff