/* Target-dependent code for GNU/Linux on Alpha.
- Copyright (C) 2002, 2003 Free Software Foundation, Inc.
+ Copyright (C) 2002, 2003, 2007 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
+ 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,
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., 51 Franklin Street, Fifth Floor,
- Boston, MA 02110-1301, USA. */
+ along with this program. If not, see <http://www.gnu.org/licenses/>. */
#include "defs.h"
#include "frame.h"
#include "gdb_assert.h"
+#include "gdb_string.h"
#include "osabi.h"
#include "solib-svr4.h"
#include "symtab.h"
+#include "regset.h"
+#include "regcache.h"
#include "alpha-tdep.h"
return sp;
}
+/* 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
+alpha_linux_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 >= 32 * 8);
+
+ 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);
+
+ if (regnum == ALPHA_UNIQUE_REGNUM || regnum == -1)
+ regcache_raw_supply (regcache, ALPHA_UNIQUE_REGNUM,
+ len >= 33 * 8 ? regs + 32 * 8 : NULL);
+}
+
+/* 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
+alpha_linux_supply_fpregset (const struct regset *regset,
+ struct regcache *regcache,
+ int regnum, const void *fpregs, size_t len)
+{
+ const gdb_byte *regs = fpregs;
+ int i;
+ gdb_assert (len >= 32 * 8);
+
+ 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 + 31 * 8);
+}
+
+static struct regset alpha_linux_gregset =
+{
+ NULL,
+ alpha_linux_supply_gregset
+};
+
+static struct regset alpha_linux_fpregset =
+{
+ NULL,
+ alpha_linux_supply_fpregset
+};
+
+/* Return the appropriate register set for the core section identified
+ by SECT_NAME and SECT_SIZE. */
+
+const struct regset *
+alpha_linux_regset_from_core_section (struct gdbarch *gdbarch,
+ const char *sect_name, size_t sect_size)
+{
+ if (strcmp (sect_name, ".reg") == 0 && sect_size >= 32 * 8)
+ return &alpha_linux_gregset;
+
+ if (strcmp (sect_name, ".reg2") == 0 && sect_size >= 32 * 8)
+ return &alpha_linux_fpregset;
+
+ return NULL;
+}
+
static void
alpha_linux_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch)
{
/* Enable TLS support. */
set_gdbarch_fetch_tls_load_module_address (gdbarch,
svr4_fetch_objfile_link_map);
+
+ set_gdbarch_regset_from_core_section
+ (gdbarch, alpha_linux_regset_from_core_section);
}
void