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* alphabsd-tdep.h: Tweak comments. 

(SIZOEF_STRUCT_REG, SIZEOF_STRUCT_FPREG): Remove.
* alphanbsd-tdep.c: Reorder includes.  Include "regset.h".
(ALPHANBSD_SIZEOF_GREGS, ALPHANBSD_SIZEOF_FPREGS): New defines.
(alphanbsd_supply_fpregset, alphanbsd_supply_gregset)
(alphanbsd_aout_supply_gregset): New functions.
(alphanbsd_gregset, alphanbsd_fpregset, alphanbsd_aout_gregset):
New variables.
(alphanbsd_regset_from_core_section)
(alphanbsd_aout_regset_from_core_section): New functions.
(fetch_core_registers, fetch_elfcore_registers): Remove functions.
(alphanbsd_core_fns, alphanbsd_elf_fns): Remove variables.
(alphanbsd_init_abi): Set regset_from_core_section.
(alphanbsd_aout_init_abi, alphanbsd_core_osabi_sniffer): New
functions.
(_initialize_alphanbsd_tdep): Register NetBSD core file sniffer.
Use alphanbsd_aout_init_abi whre appropriate.  Don't call
deprecated_add_core_fns.
* Makefile.in (alphanbsd-tdep.o): Update dependencies.
cr-0x5f1
Mark Kettenis 20 years ago
parent
8fe7c54bf1
commit
3beabdb233
4 changed files with 189 additions and 73 deletions
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  1. 20
      gdb/ChangeLog
  2. 7
      gdb/Makefile.in
  3. 10
      gdb/alphabsd-tdep.h
  4. 225
      gdb/alphanbsd-tdep.c

20
gdb/ChangeLog
View File

@ -1,5 +1,25 @@
2006-07-09 Mark Kettenis <kettenis@gnu.org>
* alphabsd-tdep.h: Tweak comments.
(SIZOEF_STRUCT_REG, SIZEOF_STRUCT_FPREG): Remove.
* alphanbsd-tdep.c: Reorder includes. Include "regset.h".
(ALPHANBSD_SIZEOF_GREGS, ALPHANBSD_SIZEOF_FPREGS): New defines.
(alphanbsd_supply_fpregset, alphanbsd_supply_gregset)
(alphanbsd_aout_supply_gregset): New functions.
(alphanbsd_gregset, alphanbsd_fpregset, alphanbsd_aout_gregset):
New variables.
(alphanbsd_regset_from_core_section)
(alphanbsd_aout_regset_from_core_section): New functions.
(fetch_core_registers, fetch_elfcore_registers): Remove functions.
(alphanbsd_core_fns, alphanbsd_elf_fns): Remove variables.
(alphanbsd_init_abi): Set regset_from_core_section.
(alphanbsd_aout_init_abi, alphanbsd_core_osabi_sniffer): New
functions.
(_initialize_alphanbsd_tdep): Register NetBSD core file sniffer.
Use alphanbsd_aout_init_abi whre appropriate. Don't call
deprecated_add_core_fns.
* Makefile.in (alphanbsd-tdep.o): Update dependencies.
* alphabsd-tdep.c (alphabsd_supply_reg, alphabsd_fill_reg)
(alphabsd_supply_fpreg, alphabsd_fill_fpreg): Add missing spaces.

7
gdb/Makefile.in
View File

@ -1707,9 +1707,10 @@ alpha-mdebug-tdep.o: alpha-mdebug-tdep.c $(defs_h) $(frame_h) \
$(block_h) $(gdb_assert_h) $(alpha_tdep_h) $(mdebugread_h)
alpha-nat.o: alpha-nat.c $(defs_h) $(gdb_string_h) $(inferior_h) \
$(gdbcore_h) $(target_h) $(regcache_h) $(alpha_tdep_h) $(gregset_h)
alphanbsd-tdep.o: alphanbsd-tdep.c $(defs_h) $(gdbcore_h) $(frame_h) \
$(regcache_h) $(value_h) $(osabi_h) $(gdb_string_h) $(alpha_tdep_h) \
$(alphabsd_tdep_h) $(nbsd_tdep_h) $(solib_svr4_h)
alphanbsd-tdep.o: alphanbsd-tdep.c $(defs_h) $(frame_h) $(gdbcore_h) \
$(regcache_h) $(regset_h) $(value_h) $(osabi_h) $(gdb_string_h) \
$(gdb_assert_h) $(alpha_tdep_h) $(alphabsd_tdep_h) $(nbsd_tdep_h) \
$(solib_svr4_h)
alpha-osf1-tdep.o: alpha-osf1-tdep.c $(defs_h) $(frame_h) $(gdbcore_h) \
$(value_h) $(osabi_h) $(gdb_string_h) $(objfiles_h) $(alpha_tdep_h)
alpha-tdep.o: alpha-tdep.c $(defs_h) $(doublest_h) $(frame_h) \

10
gdb/alphabsd-tdep.h
View File

@ -1,5 +1,6 @@
/* Common target dependent code for GDB on Alpha systems running BSD.
Copyright (C) 2002 Free Software Foundation, Inc.
/* Common target dependent code for Alpha BSD's.
Copyright (C) 2002, 2006 Free Software Foundation, Inc.
This file is part of GDB.
@ -27,7 +28,4 @@ void alphabsd_fill_reg (char *, int);
void alphabsd_supply_fpreg (char *, int);
void alphabsd_fill_fpreg (char *, int);
#define SIZEOF_STRUCT_REG (32 * 8)
#define SIZEOF_STRUCT_FPREG (33 * 8)
#endif /* ALPHABSD_TDEP_H */
#endif /* alphabsd-tdep.h */

225
gdb/alphanbsd-tdep.c
View File

@ -22,12 +22,14 @@
Boston, MA 02110-1301, USA. */
#include "defs.h"
#include "gdbcore.h"
#include "frame.h"
#include "gdbcore.h"
#include "osabi.h"
#include "regcache.h"
#include "regset.h"
#include "value.h"
#include "osabi.h"
#include "gdb_assert.h"
#include "gdb_string.h"
#include "alpha-tdep.h"
@ -35,14 +37,78 @@
#include "nbsd-tdep.h"
#include "solib-svr4.h"
/* Core file support. */
/* Even though NetBSD/alpha used ELF since day one, it used the
traditional a.out-style core dump format before NetBSD 1.6. */
/* Sizeof `struct reg' in <machine/reg.h>. */
#define ALPHANBSD_SIZEOF_GREGS (32 * 8)
/* Sizeof `struct fpreg' in <machine/reg.h. */
#define ALPHANBSD_SIZEOF_FPREGS ((32 * 8) + 8)
/* Supply register REGNUM from the buffer specified by FPREGS and LEN
in the floating-point register set REGSET to register cache
REGCACHE. If REGNUM is -1, do this for all registers in REGSET. */
static void
fetch_core_registers (char *core_reg_sect, unsigned core_reg_size, int which,
CORE_ADDR ignore)
alphanbsd_supply_fpregset (const struct regset *regset,
struct regcache *regcache,
int regnum, const void *fpregs, size_t len)
{
char *regs, *fpregs;
int regno;
const gdb_byte *regs = fpregs;
int i;
gdb_assert (len >= ALPHANBSD_SIZEOF_FPREGS);
for (i = ALPHA_FP0_REGNUM; i < ALPHA_FP0_REGNUM + 31; i++)
{
if (regnum == i || regnum == -1)
regcache_raw_supply (regcache, i, regs + (i - ALPHA_FP0_REGNUM) * 8);
}
if (regnum == ALPHA_FPCR_REGNUM || regnum == -1)
regcache_raw_supply (regcache, ALPHA_FPCR_REGNUM, regs + 32 * 8);
}
/* Supply register REGNUM from the buffer specified by GREGS and LEN
in the general-purpose register set REGSET to register cache
REGCACHE. If REGNUM is -1, do this for all registers in REGSET. */
/* Table to map a gdb register number to a trapframe register index. */
static void
alphanbsd_supply_gregset (const struct regset *regset,
struct regcache *regcache,
int regnum, const void *gregs, size_t len)
{
const gdb_byte *regs = gregs;
int i;
gdb_assert (len >= ALPHANBSD_SIZEOF_GREGS);
for (i = 0; i < ALPHA_ZERO_REGNUM; i++)
{
if (regnum == i || regnum == -1)
regcache_raw_supply (regcache, i, regs + i * 8);
}
if (regnum == ALPHA_PC_REGNUM || regnum == -1)
regcache_raw_supply (regcache, ALPHA_PC_REGNUM, regs + 31 * 8);
}
/* Supply register REGNUM from the buffer specified by GREGS and LEN
in the general-purpose register set REGSET to register cache
REGCACHE. If REGNUM is -1, do this for all registers in REGSET. */
static void
alphanbsd_aout_supply_gregset (const struct regset *regset,
struct regcache *regcache,
int regnum, const void *gregs, size_t len)
{
const gdb_byte *regs = gregs;
int i;
/* Table to map a GDB register number to a trapframe register index. */
static const int regmap[] =
{
0, 1, 2, 3,
@ -54,75 +120,76 @@ fetch_core_registers (char *core_reg_sect, unsigned core_reg_size, int which,
21, 22, 23, 24,
25, 29, 26
};
#define SIZEOF_TRAPFRAME (33 * 8)
/* We get everything from one section. */
if (which != 0)
return;
regs = core_reg_sect;
fpregs = core_reg_sect + SIZEOF_TRAPFRAME;
gdb_assert (len >= ALPHANBSD_SIZEOF_GREGS);
if (core_reg_size < (SIZEOF_TRAPFRAME + SIZEOF_STRUCT_FPREG))
for (i = 0; i < ARRAY_SIZE(regmap); i++)
{
warning (_("Wrong size register set in core file."));
return;
if (regnum == i || regnum == -1)
regcache_raw_supply (regcache, i, regs + regmap[i] * 8);
}
/* Integer registers. */
for (regno = 0; regno < ALPHA_ZERO_REGNUM; regno++)
regcache_raw_supply (current_regcache, regno, regs + (regmap[regno] * 8));
regcache_raw_supply (current_regcache, ALPHA_ZERO_REGNUM, NULL);
regcache_raw_supply (current_regcache, PC_REGNUM, regs + (28 * 8));
if (regnum == ALPHA_PC_REGNUM || regnum == -1)
regcache_raw_supply (regcache, ALPHA_PC_REGNUM, regs + 31 * 8);
/* Floating point registers. */
alphabsd_supply_fpreg (fpregs, -1);
}
static void
fetch_elfcore_registers (char *core_reg_sect, unsigned core_reg_size, int which,
CORE_ADDR ignore)
{
switch (which)
if (len >= ALPHANBSD_SIZEOF_GREGS + ALPHANBSD_SIZEOF_FPREGS)
{
case 0: /* Integer registers. */
if (core_reg_size != SIZEOF_STRUCT_REG)
warning (_("Wrong size register set in core file."));
else
alphabsd_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
alphabsd_supply_fpreg (core_reg_sect, -1);
break;
default:
/* Don't know what kind of register request this is; just ignore it. */
break;
regs += ALPHANBSD_SIZEOF_GREGS;
len -= ALPHANBSD_SIZEOF_GREGS;
alphanbsd_supply_fpregset (regset, regcache, regnum, regs, len);
}
}
static struct core_fns alphanbsd_core_fns =
/* NetBSD/alpha register sets. */
static struct regset alphanbsd_gregset =
{
bfd_target_unknown_flavour, /* core_flavour */
default_check_format, /* check_format */
default_core_sniffer, /* core_sniffer */
fetch_core_registers, /* core_read_registers */
NULL /* next */
NULL,
alphanbsd_supply_gregset
};
static struct core_fns alphanbsd_elfcore_fns =
static struct regset alphanbsd_fpregset =
{
bfd_target_elf_flavour, /* core_flavour */
default_check_format, /* check_format */
default_core_sniffer, /* core_sniffer */
fetch_elfcore_registers, /* core_read_registers */
NULL /* next */
NULL,
alphanbsd_supply_fpregset
};
static struct regset alphanbsd_aout_gregset =
{
NULL,
alphanbsd_aout_supply_gregset
};
/* Return the appropriate register set for the core section identified
by SECT_NAME and SECT_SIZE. */
static const struct regset *
alphanbsd_regset_from_core_section (struct gdbarch *gdbarch,
const char *sect_name, size_t sect_size)
{
if (strcmp (sect_name, ".reg") == 0 && sect_size >= ALPHANBSD_SIZEOF_GREGS)
return &alphanbsd_gregset;
if (strcmp (sect_name, ".reg2") == 0 && sect_size >= ALPHANBSD_SIZEOF_FPREGS)
return &alphanbsd_fpregset;
return NULL;
}
static const struct regset *
alphanbsd_aout_regset_from_core_section (struct gdbarch *gdbarch,
const char *sect_name,
size_t sect_size)
{
if (strcmp (sect_name, ".reg") == 0 && sect_size >= ALPHANBSD_SIZEOF_GREGS)
return &alphanbsd_aout_gregset;
return NULL;
}
/* Signal trampolines. */
/* Under NetBSD/alpha, signal handler invocations can be identified by the
designated code sequence that is used to return from a signal handler.
In particular, the return address of a signal handler points to the
@ -221,16 +288,46 @@ alphanbsd_init_abi (struct gdbarch_info info,
tdep->jb_pc = 2;
tdep->jb_elt_size = 8;
set_gdbarch_regset_from_core_section
(gdbarch, alphanbsd_regset_from_core_section);
}
static void
alphanbsd_aout_init_abi (struct gdbarch_info info,
struct gdbarch *gdbarch)
{
alphanbsd_init_abi(info, gdbarch);
set_gdbarch_regset_from_core_section
(gdbarch, alphanbsd_aout_regset_from_core_section);
}
static enum gdb_osabi
alphanbsd_core_osabi_sniffer (bfd *abfd)
{
if (strcmp (bfd_get_target (abfd), "netbsd-core") == 0)
return GDB_OSABI_NETBSD_AOUT;
return GDB_OSABI_UNKNOWN;
}
/* Provide a prototype to silence -Wmissing-prototypes. */
void _initialize_alphanbsd_tdep (void);
void
_initialize_alphanbsd_tdep (void)
{
/* BFD doesn't set a flavour for NetBSD style a.out core files. */
gdbarch_register_osabi_sniffer (bfd_arch_alpha, bfd_target_unknown_flavour,
alphanbsd_core_osabi_sniffer);
gdbarch_register_osabi (bfd_arch_alpha, 0, GDB_OSABI_NETBSD_ELF,
alphanbsd_init_abi);
gdbarch_register_osabi (bfd_arch_alpha, 0, GDB_OSABI_NETBSD_AOUT,
alphanbsd_aout_init_abi);
gdbarch_register_osabi (bfd_arch_alpha, 0, GDB_OSABI_OPENBSD_ELF,
alphanbsd_init_abi);
deprecated_add_core_fns (&alphanbsd_core_fns);
deprecated_add_core_fns (&alphanbsd_elfcore_fns);
alphanbsd_aout_init_abi);
}

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