/* Low level Alpha interface, for GDB when running native.
- Copyright 1993 Free Software Foundation, Inc.
+ Copyright (C) 1993, 1995-1996, 1998-2001, 2003, 2007-2012 Free
+ Software Foundation, Inc.
-This file is part of GDB.
+ 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 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 3 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.
+ 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., 675 Mass Ave, Cambridge, MA 02139, USA. */
+ You should have received a copy of the GNU General Public License
+ along with this program. If not, see <http://www.gnu.org/licenses/>. */
#include "defs.h"
+#include "gdb_string.h"
#include "inferior.h"
#include "gdbcore.h"
#include "target.h"
-#include <sys/ptrace.h>
-#include <machine/reg.h>
-
-/* Size of elements in jmpbuf */
-
-#define JB_ELEMENT_SIZE 8
-
-/* The definition for JB_PC in machine/reg.h is wrong.
- And we can't get at the correct definition in setjmp.h as it is
- not always available (eg. if _POSIX_SOURCE is defined which is the
- default). As the defintion is unlikely to change (see comment
- in <setjmp.h>, define the correct value here. */
-
-#undef JB_PC
-#define JB_PC 2
-
-/* Figure out where the longjmp will land.
- We expect the first arg to be a pointer to the jmp_buf structure from which
- we extract the pc (JB_PC) that we will land at. The pc is copied into PC.
- This routine returns true on success. */
+#include "procfs.h"
+#include "regcache.h"
-int
-get_longjmp_target (pc)
- CORE_ADDR *pc;
-{
- CORE_ADDR jb_addr;
- char raw_buffer[MAX_REGISTER_RAW_SIZE];
-
- jb_addr = read_register(A0_REGNUM);
+#include "alpha-tdep.h"
- if (target_read_memory(jb_addr + JB_PC * JB_ELEMENT_SIZE, raw_buffer,
- sizeof(CORE_ADDR)))
- return 0;
+#include <sys/ptrace.h>
+#include <alpha/coreregs.h>
+#include <sys/user.h>
- *pc = extract_address (raw_buffer, sizeof(CORE_ADDR));
- return 1;
-}
/* Extract the register values out of the core file and store
- them where `read_register' will find them.
+ them into REGCACHE.
CORE_REG_SECT points to the register values themselves, read into memory.
CORE_REG_SIZE is the size of that area.
WHICH says which set of registers we are handling (0 = int, 2 = float
- on machines where they are discontiguous).
+ on machines where they are discontiguous).
REG_ADDR is the offset from u.u_ar0 to the register values relative to
- core_reg_sect. This is used with old-fashioned core files to
- locate the registers in a large upage-plus-stack ".reg" section.
- Original upage address X is at location core_reg_sect+x+reg_addr.
- */
-
-void
-fetch_core_registers (core_reg_sect, core_reg_size, which, reg_addr)
- char *core_reg_sect;
- unsigned core_reg_size;
- int which;
- unsigned reg_addr;
+ core_reg_sect. This is used with old-fashioned core files to
+ locate the registers in a large upage-plus-stack ".reg" section.
+ Original upage address X is at location core_reg_sect+x+reg_addr. */
+
+static void
+fetch_osf_core_registers (struct regcache *regcache,
+ char *core_reg_sect, unsigned core_reg_size,
+ int which, CORE_ADDR reg_addr)
{
- register int regno;
- register int addr;
+ struct gdbarch *gdbarch = get_regcache_arch (regcache);
+ int regno;
+ int addr;
int bad_reg = -1;
- /* Table to map a gdb regnum to an index in the core register section.
- The floating point register values are garbage in OSF/1.2 core files. */
- static int core_reg_mapping[NUM_REGS] =
+ /* Table to map a gdb regnum to an index in the core register
+ section. The floating point register values are garbage in
+ OSF/1.2 core files. OSF5 uses different names for the register
+ enum list, need to handle two cases. The actual values are the
+ same. */
+ static int const core_reg_mapping[ALPHA_NUM_REGS] =
{
+#ifdef NCF_REGS
+#define EFL NCF_REGS
+ CF_V0, CF_T0, CF_T1, CF_T2, CF_T3, CF_T4, CF_T5, CF_T6,
+ CF_T7, CF_S0, CF_S1, CF_S2, CF_S3, CF_S4, CF_S5, CF_S6,
+ CF_A0, CF_A1, CF_A2, CF_A3, CF_A4, CF_A5, CF_T8, CF_T9,
+ CF_T10, CF_T11, CF_RA, CF_T12, CF_AT, CF_GP, CF_SP, -1,
+ EFL + 0, EFL + 1, EFL + 2, EFL + 3,
+ EFL + 4, EFL + 5, EFL + 6, EFL + 7,
+ EFL + 8, EFL + 9, EFL + 10, EFL + 11,
+ EFL + 12, EFL + 13, EFL + 14, EFL + 15,
+ EFL + 16, EFL + 17, EFL + 18, EFL + 19,
+ EFL + 20, EFL + 21, EFL + 22, EFL + 23,
+ EFL + 24, EFL + 25, EFL + 26, EFL + 27,
+ EFL + 28, EFL + 29, EFL + 30, EFL + 31,
+ CF_PC, -1, -1
+#else
#define EFL (EF_SIZE / 8)
- EF_V0, EF_T0, EF_T1, EF_T2, EF_T3, EF_T4, EF_T5, EF_T6,
- EF_T7, EF_S0, EF_S1, EF_S2, EF_S3, EF_S4, EF_S5, EF_S6,
- EF_A0, EF_A1, EF_A2, EF_A3, EF_A4, EF_A5, EF_T8, EF_T9,
- EF_T10, EF_T11, EF_RA, EF_T12, EF_AT, EF_GP, EF_SP, -1,
- EFL+0, EFL+1, EFL+2, EFL+3, EFL+4, EFL+5, EFL+6, EFL+7,
- EFL+8, EFL+9, EFL+10, EFL+11, EFL+12, EFL+13, EFL+14, EFL+15,
- EFL+16, EFL+17, EFL+18, EFL+19, EFL+20, EFL+21, EFL+22, EFL+23,
- EFL+24, EFL+25, EFL+26, EFL+27, EFL+28, EFL+29, EFL+30, EFL+31,
- EF_PC, -1
+ EF_V0, EF_T0, EF_T1, EF_T2, EF_T3, EF_T4, EF_T5, EF_T6,
+ EF_T7, EF_S0, EF_S1, EF_S2, EF_S3, EF_S4, EF_S5, EF_S6,
+ EF_A0, EF_A1, EF_A2, EF_A3, EF_A4, EF_A5, EF_T8, EF_T9,
+ EF_T10, EF_T11, EF_RA, EF_T12, EF_AT, EF_GP, EF_SP, -1,
+ EFL + 0, EFL + 1, EFL + 2, EFL + 3,
+ EFL + 4, EFL + 5, EFL + 6, EFL + 7,
+ EFL + 8, EFL + 9, EFL + 10, EFL + 11,
+ EFL + 12, EFL + 13, EFL + 14, EFL + 15,
+ EFL + 16, EFL + 17, EFL + 18, EFL + 19,
+ EFL + 20, EFL + 21, EFL + 22, EFL + 23,
+ EFL + 24, EFL + 25, EFL + 26, EFL + 27,
+ EFL + 28, EFL + 29, EFL + 30, EFL + 31,
+ EF_PC, -1, -1
+#endif
};
- static char zerobuf[MAX_REGISTER_RAW_SIZE] = {0};
- for (regno = 0; regno < NUM_REGS; regno++)
+ for (regno = 0; regno < ALPHA_NUM_REGS; regno++)
{
- if (CANNOT_FETCH_REGISTER (regno))
+ if (gdbarch_cannot_fetch_register (gdbarch, regno))
{
- supply_register (regno, zerobuf);
+ regcache_raw_supply (regcache, regno, NULL);
continue;
}
+
+ if (regno == ALPHA_ZERO_REGNUM)
+ {
+ const gdb_byte zero[8] = { 0 };
+
+ regcache_raw_supply (regcache, regno, zero);
+ continue;
+ }
+
addr = 8 * core_reg_mapping[regno];
if (addr < 0 || addr >= core_reg_size)
{
+ /* ??? UNIQUE is a new addition. Don't generate an error. */
+ if (regno == ALPHA_UNIQUE_REGNUM)
+ {
+ regcache_raw_supply (regcache, regno, NULL);
+ continue;
+ }
if (bad_reg < 0)
bad_reg = regno;
}
else
{
- supply_register (regno, core_reg_sect + addr);
+ regcache_raw_supply (regcache, regno, core_reg_sect + addr);
}
}
if (bad_reg >= 0)
{
- error ("Register %s not found in core file.", reg_names[bad_reg]);
+ error (_("Register %s not found in core file."),
+ gdbarch_register_name (gdbarch, bad_reg));
}
}
-/* Map gdb internal register number to a ptrace ``address''.
- These ``addresses'' are defined in <sys/ptrace.h> */
-#define REGISTER_PTRACE_ADDR(regno) \
- (regno < FP0_REGNUM ? GPR_BASE + (regno) \
- : regno == PC_REGNUM ? PC \
- : regno >= FP0_REGNUM ? FPR_BASE + ((regno) - FP0_REGNUM) \
- : 0)
+#include <sys/procfs.h>
+/* Prototypes for supply_gregset etc. */
+#include "gregset.h"
-/* Return the ptrace ``address'' of register REGNO. */
+/* See the comment in m68k-tdep.c regarding the utility of these
+ functions. */
-unsigned int
-register_addr (regno, blockend)
- int regno;
- int blockend;
+void
+supply_gregset (struct regcache *regcache, const gdb_gregset_t *gregsetp)
+{
+ const long *regp = gregsetp->regs;
+
+ /* PC is in slot 32. */
+ alpha_supply_int_regs (regcache, -1, regp, regp + 31, NULL);
+}
+
+void
+fill_gregset (const struct regcache *regcache,
+ gdb_gregset_t *gregsetp, int regno)
{
- return REGISTER_PTRACE_ADDR (regno);
+ long *regp = gregsetp->regs;
+
+ /* PC is in slot 32. */
+ alpha_fill_int_regs (regcache, regno, regp, regp + 31, NULL);
+}
+
+/* Now we do the same thing for floating-point registers.
+ Again, see the comments in m68k-tdep.c. */
+
+void
+supply_fpregset (struct regcache *regcache, const gdb_fpregset_t *fpregsetp)
+{
+ const long *regp = fpregsetp->regs;
+
+ /* FPCR is in slot 32. */
+ alpha_supply_fp_regs (regcache, -1, regp, regp + 31);
+}
+
+void
+fill_fpregset (const struct regcache *regcache,
+ gdb_fpregset_t *fpregsetp, int regno)
+{
+ long *regp = fpregsetp->regs;
+
+ /* FPCR is in slot 32. */
+ alpha_fill_fp_regs (regcache, regno, regp, regp + 31);
+}
+\f
+
+/* Register that we are able to handle alpha core file formats. */
+
+static struct core_fns alpha_osf_core_fns =
+{
+ /* This really is bfd_target_unknown_flavour. */
+
+ bfd_target_unknown_flavour, /* core_flavour */
+ default_check_format, /* check_format */
+ default_core_sniffer, /* core_sniffer */
+ fetch_osf_core_registers, /* core_read_registers */
+ NULL /* next */
+};
+
+/* Provide a prototype to silence -Wmissing-prototypes. */
+extern initialize_file_ftype _initialize_alpha_nat;
+
+void
+_initialize_alpha_nat (void)
+{
+ struct target_ops *t;
+
+ t = procfs_target ();
+ add_target (t);
+
+ deprecated_add_core_fns (&alpha_osf_core_fns);
}
projects / deliverable / binutils-gdb.git / blobdiff