-/* Motorola m68k native support for Linux
- Copyright 1996, 1998, 2000, 2001 Free Software Foundation, Inc.
+/* Motorola m68k native support for GNU/Linux.
+
+ Copyright 1996, 1998, 2000, 2001, 2002 Free Software Foundation,
+ Inc.
This file is part of GDB.
#include "inferior.h"
#include "language.h"
#include "gdbcore.h"
+#include "gdb_string.h"
#include "regcache.h"
+#include "m68k-tdep.h"
+
#ifdef USG
#include <sys/types.h>
#endif
#include "target.h"
\f
-
-/* This table must line up with REGISTER_NAMES in tm-m68k.h */
+/* This table must line up with REGISTER_NAME in "m68k-tdep.c". */
static const int regmap[] =
{
PT_D0, PT_D1, PT_D2, PT_D3, PT_D4, PT_D5, PT_D6, PT_D7,
int
getfpregs_supplies (int regno)
{
- return FP0_REGNUM <= regno && regno <= FPI_REGNUM;
+ return FP0_REGNUM <= regno && regno <= M68K_FPI_REGNUM;
}
/* Does the current host support the GETREGS request? */
/* This isn't really an address. But ptrace thinks of it as one. */
CORE_ADDR regaddr;
char mess[128]; /* For messages */
- register int i;
+ int i;
unsigned int offset; /* Offset of registers within the u area. */
- char buf[MAX_REGISTER_RAW_SIZE];
+ char buf[MAX_REGISTER_SIZE];
int tid;
if (CANNOT_FETCH_REGISTER (regno))
{
- memset (buf, '\0', REGISTER_RAW_SIZE (regno)); /* Supply zeroes */
+ memset (buf, '\0', register_size (current_gdbarch, regno)); /* Supply zeroes */
supply_register (regno, buf);
return;
}
/* Overload thread id onto process id */
- if ((tid = TIDGET (inferior_ptid)) == 0)
+ tid = TIDGET (inferior_ptid);
+ if (tid == 0)
tid = PIDGET (inferior_ptid); /* no thread id, just use process id */
offset = U_REGS_OFFSET;
regaddr = register_addr (regno, offset);
- for (i = 0; i < REGISTER_RAW_SIZE (regno); i += sizeof (PTRACE_XFER_TYPE))
+ for (i = 0; i < register_size (current_gdbarch, regno);
+ i += sizeof (PTRACE_XFER_TYPE))
{
errno = 0;
- *(PTRACE_XFER_TYPE *) & buf[i] = ptrace (PT_READ_U, tid,
- (PTRACE_ARG3_TYPE) regaddr, 0);
+ *(PTRACE_XFER_TYPE *) &buf[i] = ptrace (PT_READ_U, tid,
+ (PTRACE_ARG3_TYPE) regaddr, 0);
regaddr += sizeof (PTRACE_XFER_TYPE);
if (errno != 0)
{
/* This isn't really an address. But ptrace thinks of it as one. */
CORE_ADDR regaddr;
char mess[128]; /* For messages */
- register int i;
+ int i;
unsigned int offset; /* Offset of registers within the u area. */
int tid;
+ char buf[MAX_REGISTER_SIZE];
if (CANNOT_STORE_REGISTER (regno))
{
}
/* Overload thread id onto process id */
- if ((tid = TIDGET (inferior_ptid)) == 0)
+ tid = TIDGET (inferior_ptid);
+ if (tid == 0)
tid = PIDGET (inferior_ptid); /* no thread id, just use process id */
offset = U_REGS_OFFSET;
regaddr = register_addr (regno, offset);
- for (i = 0; i < REGISTER_RAW_SIZE (regno); i += sizeof (PTRACE_XFER_TYPE))
+
+ /* Put the contents of regno into a local buffer */
+ regcache_collect (regno, buf);
+
+ /* Store the local buffer into the inferior a chunk at the time. */
+ for (i = 0; i < register_size (current_gdbarch, regno);
+ i += sizeof (PTRACE_XFER_TYPE))
{
errno = 0;
ptrace (PT_WRITE_U, tid, (PTRACE_ARG3_TYPE) regaddr,
- *(PTRACE_XFER_TYPE *) & registers[REGISTER_BYTE (regno) + i]);
+ *(PTRACE_XFER_TYPE *) (buf + i));
regaddr += sizeof (PTRACE_XFER_TYPE);
if (errno != 0)
{
elf_greg_t *regp = (elf_greg_t *) gregsetp;
int regi;
- for (regi = D0_REGNUM; regi <= SP_REGNUM; regi++)
+ for (regi = M68K_D0_REGNUM; regi <= SP_REGNUM; regi++)
supply_register (regi, (char *) ®p[regmap[regi]]);
supply_register (PS_REGNUM, (char *) ®p[PT_SR]);
supply_register (PC_REGNUM, (char *) ®p[PT_PC]);
int i;
for (i = 0; i < NUM_GREGS; i++)
- if ((regno == -1 || regno == i))
+ if (regno == -1 || regno == i)
regcache_collect (i, regp + regmap[i]);
}
{
int regi;
- for (regi = FP0_REGNUM; regi < FPC_REGNUM; regi++)
+ for (regi = FP0_REGNUM; regi < FP0_REGNUM + 8; regi++)
supply_register (regi, FPREG_ADDR (fpregsetp, regi - FP0_REGNUM));
- supply_register (FPC_REGNUM, (char *) &fpregsetp->fpcntl[0]);
- supply_register (FPS_REGNUM, (char *) &fpregsetp->fpcntl[1]);
- supply_register (FPI_REGNUM, (char *) &fpregsetp->fpcntl[2]);
+ supply_register (M68K_FPC_REGNUM, (char *) &fpregsetp->fpcntl[0]);
+ supply_register (M68K_FPS_REGNUM, (char *) &fpregsetp->fpcntl[1]);
+ supply_register (M68K_FPI_REGNUM, (char *) &fpregsetp->fpcntl[2]);
}
/* Fill register REGNO (if it is a floating-point register) in
/* Fill in the floating-point registers. */
for (i = FP0_REGNUM; i < FP0_REGNUM + 8; i++)
if (regno == -1 || regno == i)
- memcpy (FPREG_ADDR (fpregsetp, regno - FP0_REGNUM),
- ®isters[REGISTER_BYTE (regno)],
- REGISTER_RAW_SIZE(regno));
+ regcache_collect (i, FPREG_ADDR (fpregsetp, i - FP0_REGNUM));
/* Fill in the floating-point control registers. */
- for (i = FPC_REGNUM; i <= FPI_REGNUM; i++)
+ for (i = M68K_FPC_REGNUM; i <= M68K_FPI_REGNUM; i++)
if (regno == -1 || regno == i)
- fpregsetp->fpcntl[regno - FPC_REGNUM]
- = *(int *) ®isters[REGISTER_BYTE (regno)];
+ regcache_collect (i, (char *) &fpregsetp->fpcntl[i - M68K_FPC_REGNUM]);
}
#ifdef HAVE_PTRACE_GETREGS
return;
}
- /* Linux LWP ID's are process ID's. */
- if ((tid = TIDGET (inferior_ptid)) == 0)
+ /* GNU/Linux LWP ID's are process ID's. */
+ tid = TIDGET (inferior_ptid);
+ if (tid == 0)
tid = PIDGET (inferior_ptid); /* Not a threaded program. */
/* Use the PTRACE_GETFPXREGS request whenever possible, since it
return;
}
- /* Linux LWP ID's are process ID's. */
- if ((tid = TIDGET (inferior_ptid)) == 0)
+ /* GNU/Linux LWP ID's are process ID's. */
+ tid = TIDGET (inferior_ptid);
+ if (tid == 0)
tid = PIDGET (inferior_ptid); /* Not a threaded program. */
/* Use the PTRACE_SETFPREGS requests whenever possible, since it
0 --- the general-purpose register set, in elf_gregset_t format
2 --- the floating-point register set, in elf_fpregset_t format
- REG_ADDR isn't used on Linux. */
+ REG_ADDR isn't used on GNU/Linux. */
static void
fetch_core_registers (char *core_reg_sect, unsigned core_reg_size,
return (sizeof (struct user));
}
\f
-/* Return non-zero if PC points into the signal trampoline. */
-
-int
-in_sigtramp (CORE_ADDR pc)
-{
- CORE_ADDR sp;
- char buf[TARGET_SHORT_BIT / TARGET_CHAR_BIT];
- int insn;
-
- sp = read_register (SP_REGNUM);
- if (pc - 2 < sp)
- return 0;
-
- if (read_memory_nobpt (pc, buf, sizeof (buf)))
- return 0;
- insn = extract_unsigned_integer (buf, sizeof (buf));
- if (insn == 0xdefc /* addaw #,sp */
- || insn == 0x7077 /* moveq #119,d0 */
- || insn == 0x4e40 /* trap #0 */
- || insn == 0x203c /* movel #,d0 */ )
- return 1;
-
- if (read_memory_nobpt (pc - 2, buf, sizeof (buf)))
- return 0;
- insn = extract_unsigned_integer (buf, sizeof (buf));
- if (insn == 0xdefc /* addaw #,sp */
- || insn == 0x7077 /* moveq #119,d0 */
- || insn == 0x4e40 /* trap #0 */
- || insn == 0x203c /* movel #,d0 */ )
- return 1;
-
- return 0;
-}
-
-\f
-/* Register that we are able to handle Linux ELF core file formats. */
+/* Register that we are able to handle GNU/Linux ELF core file
+ formats. */
static struct core_fns linux_elf_core_fns =
{
};
void
-_initialize_m68k_linux_nat ()
+_initialize_m68k_linux_nat (void)
{
add_core_fns (&linux_elf_core_fns);
}
projects / deliverable / binutils-gdb.git / blobdiff