* 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 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
# 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
# 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
/* 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.
#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(®isters[REGISTER_BYTE(dst)], &src, sizeof(src))
-
-#define RS(src, dst) \
- memcpy(&dst, ®isters[REGISTER_BYTE(src)], sizeof(dst))
+#include "ppc-tdep.h"
+#include "ppcnbsd-tdep.h"
-void
-fetch_inferior_registers (int regno)
+/* Returns true if PT_GETREGS fetches this register. */
+static int
+getregs_supplies (int regno)
{
- struct reg inferior_registers;
-#ifdef PT_GETFPREGS
- struct fpreg inferior_fp_registers;
-#endif
- int i;
-
- 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);
-
-#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
-
- registers_fetched ();
+ 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);
}
-void
-store_inferior_registers (int regno)
+/* Like above, but for PT_GETFPREGS. */
+static int
+getfpregs_supplies (int regno)
{
- struct reg inferior_registers;
-#ifdef PT_SETFPREGS
- struct fpreg inferior_fp_registers;
-#endif
- int i;
-
- 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);
-
- ptrace (PT_SETREGS, PIDGET (inferior_ptid),
- (PTRACE_ARG3_TYPE) & inferior_registers, 0);
-
-#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 gdbarch_tdep *tdep = gdbarch_tdep (current_gdbarch);
-struct md_core
-{
- struct reg intreg;
-#ifdef PT_GETFPREGS
- struct fpreg freg;
-#endif
-};
+ return ((regno >= FP0_REGNUM && regno <= FP0_REGNUM + 31)
+ || regno == tdep->ppc_fpscr_regnum);
+}
void
-fetch_core_registers (char *core_reg_sect, unsigned core_reg_size, int which,
- CORE_ADDR ignore)
+fetch_inferior_registers (int regno)
{
- 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 ();
+ if (regno == -1 || getregs_supplies (regno))
+ {
+ struct reg regs;
+
+ if (ptrace (PT_GETREGS, PIDGET (inferior_ptid),
+ (PTRACE_ARG3_TYPE) ®s, 0) == -1)
+ perror_with_name ("Couldn't get registers");
+
+ ppcnbsd_supply_reg ((char *) ®s, regno);
+ 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_supply_fpreg ((char *) &fpregs, regno);
+ if (regno != -1)
+ return;
+ }
}
-/* 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)
+store_inferior_registers (int regno)
{
- add_core_fns (&ppcnbsd_core_fns);
+ if (regno == -1 || getregs_supplies (regno))
+ {
+ struct reg regs;
+
+ if (ptrace (PT_GETREGS, PIDGET (inferior_ptid),
+ (PTRACE_ARG3_TYPE) ®s, 0) == -1)
+ perror_with_name ("Couldn't get registers");
+
+ ppcnbsd_fill_reg ((char *) ®s, regno);
+
+ if (ptrace (PT_SETREGS, PIDGET (inferior_ptid),
+ (PTRACE_ARG3_TYPE) ®s, 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");
+ }
}
--- /dev/null
+/* 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);
+}
--- /dev/null
+/* 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 */
projects / external / binutils.git / commitdiff