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* ppcnbsd-nat.c: Rewrite. 

* ppcnbsd-tdep.c: New file.
* ppcnbsd-tdep.h: New file.
* config/powerpc/nbsd.mh (NATDEPFILES): Remove corelow.o,
solib.o, and solib-svr4.o.
* config/powerpc/nbsd.mt (TDEPFILES): Add ppcnbsd-tdep.o,
nbsd-tdep.o, and corelow.o.
This commit is contained in:
Jason Thorpe 2002-05-28 18:43:08 +00:00
parent 1d7c105379
commit 485721b1e7
6 changed files with 344 additions and 104 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

10
gdb/ChangeLog
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@ -1,3 +1,13 @@
2002-05-28 Jason Thorpe <thorpej@wasabisystems.com>
* ppcnbsd-nat.c: Rewrite.
* ppcnbsd-tdep.c: New file.
* ppcnbsd-tdep.h: New file.
* config/powerpc/nbsd.mh (NATDEPFILES): Remove corelow.o,
solib.o, and solib-svr4.o.
* config/powerpc/nbsd.mt (TDEPFILES): Add ppcnbsd-tdep.o,
nbsd-tdep.o, and corelow.o.
2002-05-28 Andrew Cagney <ac131313@redhat.com>
* MAINTAINERS (--enable-gdb-build-warnings): Rewrite script to use

3
gdb/config/powerpc/nbsd.mh
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@ -1,4 +1,3 @@
# Host: PowerPC, running NetBSD
NATDEPFILES= fork-child.o infptrace.o inftarg.o corelow.o ppcnbsd-nat.o \
solib.o solib-svr4.o solib-legacy.o
NATDEPFILES= fork-child.o infptrace.o inftarg.o ppcnbsd-nat.o solib-legacy.o
NAT_FILE= nm-nbsd.h

3
gdb/config/powerpc/nbsd.mt
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@ -1,5 +1,6 @@
# Target: PowerPC, running NetBSD
TDEPFILES= rs6000-tdep.o ppc-linux-tdep.o solib.o solib-svr4.o
TDEPFILES= rs6000-tdep.o ppcnbsd-tdep.o nbsd-tdep.o ppc-linux-tdep.o corelow.o \
solib.o solib-svr4.o
TM_FILE= tm-nbsd.h
SIM_OBS = remote-sim.o

180
gdb/ppcnbsd-nat.c
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@ -1,6 +1,6 @@
/* Native-dependent code for PowerPC's running NetBSD, for GDB.
Copyright 1988, 1989, 1991, 1992, 1994, 1996, 2000, 2001
Free Software Foundation, Inc.
Copyright 2002 Free Software Foundation, Inc.
Contributed by Wasabi Systems, Inc.
This file is part of GDB.
@ -22,124 +22,102 @@
#include <sys/types.h>
#include <sys/ptrace.h>
#include <machine/reg.h>
#include <machine/frame.h>
#include "defs.h"
#include "inferior.h"
#include "gdbcore.h"
#include "ppc-tdep.h"
#include "regcache.h"
#define RF(dst, src) \
memcpy(&registers[REGISTER_BYTE(dst)], &src, sizeof(src))
#define RS(src, dst) \
memcpy(&dst, &registers[REGISTER_BYTE(src)], sizeof(dst))
#include "ppc-tdep.h"
#include "ppcnbsd-tdep.h"
/* Returns true if PT_GETREGS fetches this register. */
static int
getregs_supplies (int regno)
{
struct gdbarch_tdep *tdep = gdbarch_tdep (current_gdbarch);
return ((regno >= 0 && regno <= 31)
|| regno == tdep->ppc_lr_regnum
|| regno == tdep->ppc_cr_regnum
|| regno == tdep->ppc_xer_regnum
|| regno == tdep->ppc_ctr_regnum
|| regno == PC_REGNUM);
}
/* Like above, but for PT_GETFPREGS. */
static int
getfpregs_supplies (int regno)
{
struct gdbarch_tdep *tdep = gdbarch_tdep (current_gdbarch);
return ((regno >= FP0_REGNUM && regno <= FP0_REGNUM + 31)
|| regno == tdep->ppc_fpscr_regnum);
}
void
fetch_inferior_registers (int regno)
{
struct reg inferior_registers;
#ifdef PT_GETFPREGS
struct fpreg inferior_fp_registers;
#endif
int i;
if (regno == -1 || getregs_supplies (regno))
{
struct reg regs;
ptrace (PT_GETREGS, PIDGET (inferior_ptid),
(PTRACE_ARG3_TYPE) & inferior_registers, 0);
for (i = 0; i < 32; i++)
RF (i, inferior_registers.fixreg[i]);
RF (gdbarch_tdep (current_gdbarch)->ppc_lr_regnum, inferior_registers.lr);
RF (gdbarch_tdep (current_gdbarch)->ppc_cr_regnum, inferior_registers.cr);
RF (gdbarch_tdep (current_gdbarch)->ppc_xer_regnum, inferior_registers.xer);
RF (gdbarch_tdep (current_gdbarch)->ppc_ctr_regnum, inferior_registers.ctr);
RF (PC_REGNUM, inferior_registers.pc);
if (ptrace (PT_GETREGS, PIDGET (inferior_ptid),
(PTRACE_ARG3_TYPE) &regs, 0) == -1)
perror_with_name ("Couldn't get registers");
#ifdef PT_GETFPREGS
ptrace (PT_GETFPREGS, PIDGET (inferior_ptid),
(PTRACE_ARG3_TYPE) &inferior_fp_registers, 0);
for (i = 0; i < 32; i++)
RF (FP0_REGNUM + i, inferior_fp_registers.fpreg[i]);
#endif
ppcnbsd_supply_reg ((char *) &regs, regno);
if (regno != -1)
return;
}
registers_fetched ();
if (regno == -1 || getfpregs_supplies (regno))
{
struct fpreg fpregs;
if (ptrace (PT_GETFPREGS, PIDGET (inferior_ptid),
(PTRACE_ARG3_TYPE) &fpregs, 0) == -1)
perror_with_name ("Couldn't get FP registers");
ppcnbsd_supply_fpreg ((char *) &fpregs, regno);
if (regno != -1)
return;
}
}
void
store_inferior_registers (int regno)
{
struct reg inferior_registers;
#ifdef PT_SETFPREGS
struct fpreg inferior_fp_registers;
#endif
int i;
if (regno == -1 || getregs_supplies (regno))
{
struct reg regs;
for (i = 0; i < 32; i++)
RS (i, inferior_registers.fixreg[i]);
RS (gdbarch_tdep (current_gdbarch)->ppc_lr_regnum, inferior_registers.lr);
RS (gdbarch_tdep (current_gdbarch)->ppc_cr_regnum, inferior_registers.cr);
RS (gdbarch_tdep (current_gdbarch)->ppc_xer_regnum, inferior_registers.xer);
RS (gdbarch_tdep (current_gdbarch)->ppc_ctr_regnum, inferior_registers.ctr);
RS (PC_REGNUM, inferior_registers.pc);
if (ptrace (PT_GETREGS, PIDGET (inferior_ptid),
(PTRACE_ARG3_TYPE) &regs, 0) == -1)
perror_with_name ("Couldn't get registers");
ptrace (PT_SETREGS, PIDGET (inferior_ptid),
(PTRACE_ARG3_TYPE) & inferior_registers, 0);
ppcnbsd_fill_reg ((char *) &regs, regno);
#ifdef PT_SETFPREGS
for (i = 0; i < 32; i++)
RS (FP0_REGNUM + i, inferior_fp_registers.fpreg[i]);
ptrace (PT_SETFPREGS, PIDGET (inferior_ptid),
(PTRACE_ARG3_TYPE) & inferior_fp_registers, 0);
#endif
}
struct md_core
{
struct reg intreg;
#ifdef PT_GETFPREGS
struct fpreg freg;
#endif
};
void
fetch_core_registers (char *core_reg_sect, unsigned core_reg_size, int which,
CORE_ADDR ignore)
{
struct md_core *core_reg = (struct md_core *) core_reg_sect;
int i;
/* Integer registers */
for (i = 0; i < 32; i++)
RF (i, core_reg->intreg.fixreg[i]);
RF (gdbarch_tdep (current_gdbarch)->ppc_lr_regnum, core_reg->intreg.lr);
RF (gdbarch_tdep (current_gdbarch)->ppc_cr_regnum, core_reg->intreg.cr);
RF (gdbarch_tdep (current_gdbarch)->ppc_xer_regnum, core_reg->intreg.xer);
RF (gdbarch_tdep (current_gdbarch)->ppc_ctr_regnum, core_reg->intreg.ctr);
RF (PC_REGNUM, core_reg->intreg.pc);
#ifdef PT_FPGETREGS
/* Floating point registers */
for (i = 0; i < 32; i++)
RF (FP0_REGNUM + i, core_reg->freg.fpreg[i]);
#endif
registers_fetched ();
}
/* Register that we are able to handle ppcnbsd core file formats.
FIXME: is this really bfd_target_unknown_flavour? */
static struct core_fns ppcnbsd_core_fns =
{
bfd_target_unknown_flavour, /* core_flavour */
default_check_format, /* check_format */
default_core_sniffer, /* core_sniffer */
fetch_core_registers, /* core_read_registers */
NULL /* next */
};
void
_initialize_ppcnbsd_nat (void)
{
add_core_fns (&ppcnbsd_core_fns);
if (ptrace (PT_SETREGS, PIDGET (inferior_ptid),
(PTRACE_ARG3_TYPE) &regs, 0) == -1)
perror_with_name ("Couldn't write registers");
if (regno != -1)
return;
}
if (regno == -1 || getfpregs_supplies (regno))
{
struct fpreg fpregs;
if (ptrace (PT_GETFPREGS, PIDGET (inferior_ptid),
(PTRACE_ARG3_TYPE) &fpregs, 0) == -1)
perror_with_name ("Couldn't get FP registers");
ppcnbsd_fill_fpreg ((char *) &fpregs, regno);
if (ptrace (PT_SETFPREGS, PIDGET (inferior_ptid),
(PTRACE_ARG3_TYPE) &fpregs, 0) == -1)
perror_with_name ("Couldn't set FP registers");
}
}

222
gdb/ppcnbsd-tdep.c Normal file
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@ -0,0 +1,222 @@
/* Target-dependent code for PowerPC systems running NetBSD.
Copyright 2002 Free Software Foundation, Inc.
Contributed by Wasabi Systems, 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 2 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, write to the Free Software
Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA. */
#include "defs.h"
#include "gdbcore.h"
#include "regcache.h"
#include "target.h"
#include "breakpoint.h"
#include "value.h"
#include "ppc-tdep.h"
#include "ppcnbsd-tdep.h"
#include "nbsd-tdep.h"
#include "solib-svr4.h"
#define REG_FIXREG_OFFSET(x) ((x) * 4)
#define REG_LR_OFFSET (32 * 4)
#define REG_CR_OFFSET (33 * 4)
#define REG_XER_OFFSET (34 * 4)
#define REG_CTR_OFFSET (35 * 4)
#define REG_PC_OFFSET (36 * 4)
#define SIZEOF_STRUCT_REG (37 * 4)
#define FPREG_FPR_OFFSET(x) ((x) * 8)
#define FPREG_FPSCR_OFFSET (32 * 8)
#define SIZEOF_STRUCT_FPREG (33 * 8)
void
ppcnbsd_supply_reg (char *regs, int regno)
{
struct gdbarch_tdep *tdep = gdbarch_tdep (current_gdbarch);
int i;
for (i = 0; i <= 31; i++)
{
if (regno == i || regno == -1)
supply_register (i, regs + REG_FIXREG_OFFSET (i));
}
if (regno == tdep->ppc_lr_regnum || regno == -1)
supply_register (tdep->ppc_lr_regnum, regs + REG_LR_OFFSET);
if (regno == tdep->ppc_cr_regnum || regno == -1)
supply_register (tdep->ppc_cr_regnum, regs + REG_CR_OFFSET);
if (regno == tdep->ppc_xer_regnum || regno == -1)
supply_register (tdep->ppc_xer_regnum, regs + REG_XER_OFFSET);
if (regno == tdep->ppc_ctr_regnum || regno == -1)
supply_register (tdep->ppc_ctr_regnum, regs + REG_CTR_OFFSET);
if (regno == PC_REGNUM || regno == -1)
supply_register (PC_REGNUM, regs + REG_PC_OFFSET);
}
void
ppcnbsd_fill_reg (char *regs, int regno)
{
struct gdbarch_tdep *tdep = gdbarch_tdep (current_gdbarch);
int i;
for (i = 0; i <= 31; i++)
{
if (regno == i || regno == -1)
regcache_collect (i, regs + REG_FIXREG_OFFSET (i));
}
if (regno == tdep->ppc_lr_regnum || regno == -1)
regcache_collect (tdep->ppc_lr_regnum, regs + REG_LR_OFFSET);
if (regno == tdep->ppc_cr_regnum || regno == -1)
regcache_collect (tdep->ppc_cr_regnum, regs + REG_CR_OFFSET);
if (regno == tdep->ppc_xer_regnum || regno == -1)
regcache_collect (tdep->ppc_xer_regnum, regs + REG_XER_OFFSET);
if (regno == tdep->ppc_ctr_regnum || regno == -1)
regcache_collect (tdep->ppc_ctr_regnum, regs + REG_CTR_OFFSET);
if (regno == PC_REGNUM || regno == -1)
regcache_collect (PC_REGNUM, regs + REG_PC_OFFSET);
}
void
ppcnbsd_supply_fpreg (char *fpregs, int regno)
{
struct gdbarch_tdep *tdep = gdbarch_tdep (current_gdbarch);
int i;
for (i = FP0_REGNUM; i <= FP0_REGNUM + 31; i++)
{
if (regno == i || regno == -1)
supply_register (i, fpregs + FPREG_FPR_OFFSET (i - FP0_REGNUM));
}
if (regno == tdep->ppc_fpscr_regnum || regno == -1)
supply_register (tdep->ppc_fpscr_regnum, fpregs + FPREG_FPSCR_OFFSET);
}
void
ppcnbsd_fill_fpreg (char *fpregs, int regno)
{
struct gdbarch_tdep *tdep = gdbarch_tdep (current_gdbarch);
int i;
for (i = FP0_REGNUM; i <= FP0_REGNUM + 31; i++)
{
if (regno == i || regno == -1)
regcache_collect (i, fpregs + FPREG_FPR_OFFSET (i - FP0_REGNUM));
}
if (regno == tdep->ppc_fpscr_regnum || regno == -1)
regcache_collect (tdep->ppc_fpscr_regnum, fpregs + FPREG_FPSCR_OFFSET);
}
static void
fetch_core_registers (char *core_reg_sect, unsigned core_reg_size, int which,
CORE_ADDR ignore)
{
char *regs, *fpregs;
/* We get everything from one section. */
if (which != 0)
return;
regs = core_reg_sect;
fpregs = core_reg_sect + SIZEOF_STRUCT_REG;
/* Integer registers. */
ppcnbsd_supply_reg (regs, -1);
/* Floating point registers. */
ppcnbsd_supply_fpreg (fpregs, -1);
}
static void
fetch_elfcore_registers (char *core_reg_sect, unsigned core_reg_size, int which,
CORE_ADDR ignore)
{
switch (which)
{
case 0: /* Integer registers. */
if (core_reg_size != SIZEOF_STRUCT_REG)
warning ("Wrong size register set in core file.");
else
ppcnbsd_supply_reg (core_reg_sect, -1);
break;
case 2: /* Floating point registers. */
if (core_reg_size != SIZEOF_STRUCT_FPREG)
warning ("Wrong size FP register set in core file.");
else
ppcnbsd_supply_fpreg (core_reg_sect, -1);
break;
default:
/* Don't know what kind of register request this is; just ignore it. */
break;
}
}
static struct core_fns ppcnbsd_core_fns =
{
bfd_target_unknown_flavour, /* core_flavour */
default_check_format, /* check_format */
default_core_sniffer, /* core_sniffer */
fetch_core_registers, /* core_read_registers */
NULL /* next */
};
static struct core_fns ppcnbsd_elfcore_fns =
{
bfd_target_elf_flavour, /* core_flavour */
default_check_format, /* check_format */
default_core_sniffer, /* core_sniffer */
fetch_elfcore_registers, /* core_read_registers */
NULL /* next */
};
static void
ppcnbsd_init_abi (struct gdbarch_info info,
struct gdbarch *gdbarch)
{
/* Until November 2001, gcc was not complying to the SYSV ABI for
returning structures less than or equal to 8 bytes in size. It was
returning everything in memory. When this was corrected, it wasn't
fixed for native platforms. */
set_gdbarch_use_struct_convention (gdbarch,
ppc_sysv_abi_broken_use_struct_convention);
set_solib_svr4_fetch_link_map_offsets (gdbarch,
nbsd_ilp32_solib_svr4_fetch_link_map_offsets);
}
void
_initialize_ppcnbsd_tdep (void)
{
gdbarch_register_osabi (bfd_arch_powerpc, GDB_OSABI_NETBSD_ELF,
ppcnbsd_init_abi);
add_core_fns (&ppcnbsd_core_fns);
add_core_fns (&ppcnbsd_elfcore_fns);
}

30
gdb/ppcnbsd-tdep.h Normal file
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@ -0,0 +1,30 @@
/* Common target dependent code for GDB on PowerPC systems running NetBSD.
Copyright 2002 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 2 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, write to the Free Software
Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA. */
#ifndef PPCNBSD_TDEP_H
#define PPCNBSD_TDEP_H
void ppcnbsd_supply_reg (char *, int);
void ppcnbsd_fill_reg (char *, int);
void ppcnbsd_supply_fpreg (char *, int);
void ppcnbsd_fill_fpreg (char *, int);
#endif /* PPCNBSD_TDEP_H */