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-rw-r--r--gdb/Makefile.in3
-rw-r--r--gdb/frv-tdep.c62
-rw-r--r--gdb/frv-tdep.h35
3 files changed, 99 insertions, 1 deletions
diff --git a/gdb/Makefile.in b/gdb/Makefile.in
index 83a4484..3017d79 100644
--- a/gdb/Makefile.in
+++ b/gdb/Makefile.in
@@ -569,6 +569,7 @@ elf_reloc_macros_h = $(INCLUDE_DIR)/elf/reloc-macros.h
elf_sh_h = $(INCLUDE_DIR)/elf/sh.h
elf_arm_h = $(INCLUDE_DIR)/elf/arm.h $(elf_reloc_macros_h)
elf_bfd_h = $(BFD_SRC)/elf-bfd.h
+elf_frv_h = $(INCLUDE_DIR)/elf/frv.h $(elf_reloc_macros_h)
libaout_h = $(BFD_SRC)/libaout.h
libbfd_h = $(BFD_SRC)/libbfd.h
remote_sim_h = $(INCLUDE_DIR)/gdb/remote-sim.h
@@ -658,6 +659,7 @@ f_lang_h = f-lang.h
frame_base_h = frame-base.h
frame_h = frame.h
frame_unwind_h = frame-unwind.h $(frame_h)
+frv_tdep_h = frv-tdep.h
gdbarch_h = gdbarch.h
gdb_assert_h = gdb_assert.h
gdbcmd_h = gdbcmd.h $(command_h) $(ui_out_h)
@@ -1769,6 +1771,7 @@ frv-tdep.o: frv-tdep.c $(defs_h) $(gdb_string_h) $(inferior_h) $(gdbcore_h) \
$(arch_utils_h) $(regcache_h) $(frame_h) $(frame_unwind_h) \
$(frame_base_h) $(trad_frame_h) $(dis_asm_h) $(gdb_assert_h) \
$(sim_regno_h) $(gdb_sim_frv_h) $(opcodes_frv_desc_h) $(symtab_h)
+ $(elf_bfd_h) $(elf_frv_h) $(osabi_h) $(frv_tdep_h)
f-typeprint.o: f-typeprint.c $(defs_h) $(gdb_obstack_h) $(bfd_h) $(symtab_h) \
$(gdbtypes_h) $(expression_h) $(value_h) $(gdbcore_h) $(target_h) \
$(f_lang_h) $(gdb_string_h)
diff --git a/gdb/frv-tdep.c b/gdb/frv-tdep.c
index b7936e7..3c424b0 100644
--- a/gdb/frv-tdep.c
+++ b/gdb/frv-tdep.c
@@ -34,6 +34,10 @@
#include "gdb/sim-frv.h"
#include "opcodes/frv-desc.h" /* for the H_SPR_... enums */
#include "symtab.h"
+#include "elf-bfd.h"
+#include "elf/frv.h"
+#include "osabi.h"
+#include "frv-tdep.h"
extern void _initialize_frv_tdep (void);
@@ -69,6 +73,8 @@ enum {
psr_regnum = 129,
ccr_regnum = 130,
cccr_regnum = 131,
+ fdpic_loadmap_exec_regnum = 132,
+ fdpic_loadmap_interp_regnum = 133,
tbr_regnum = 135,
brr_regnum = 136,
dbar0_regnum = 137,
@@ -129,6 +135,9 @@ struct frv_unwind_cache /* was struct frame_extra_info */
Fortran. */
struct gdbarch_tdep
{
+ /* Which ABI is in use? */
+ enum frv_abi frv_abi;
+
/* How many general-purpose registers does this variant have? */
int num_gprs;
@@ -147,6 +156,41 @@ struct gdbarch_tdep
#define CURRENT_VARIANT (gdbarch_tdep (current_gdbarch))
+/* Return the FR-V ABI associated with GDBARCH. */
+enum frv_abi
+frv_abi (struct gdbarch *gdbarch)
+{
+ return gdbarch_tdep (gdbarch)->frv_abi;
+}
+
+/* Fetch the interpreter and executable loadmap addresses (for shared
+ library support) for the FDPIC ABI. Return 0 if successful, -1 if
+ not. (E.g, -1 will be returned if the ABI isn't the FDPIC ABI.) */
+int
+frv_fdpic_loadmap_addresses (struct gdbarch *gdbarch, CORE_ADDR *interp_addr,
+ CORE_ADDR *exec_addr)
+{
+ if (frv_abi (gdbarch) != FRV_ABI_FDPIC)
+ return -1;
+ else
+ {
+ if (interp_addr != NULL)
+ {
+ ULONGEST val;
+ regcache_cooked_read_unsigned (current_regcache,
+ fdpic_loadmap_interp_regnum, &val);
+ *interp_addr = val;
+ }
+ if (exec_addr != NULL)
+ {
+ ULONGEST val;
+ regcache_cooked_read_unsigned (current_regcache,
+ fdpic_loadmap_exec_regnum, &val);
+ *exec_addr = val;
+ }
+ return 0;
+ }
+}
/* Allocate a new variant structure, and set up default values for all
the fields. */
@@ -160,6 +204,7 @@ new_variant (void)
var = xmalloc (sizeof (*var));
memset (var, 0, sizeof (*var));
+ var->frv_abi = FRV_ABI_EABI;
var->num_gprs = 64;
var->num_fprs = 64;
var->num_hw_watchpoints = 0;
@@ -238,6 +283,13 @@ set_variant_num_fprs (struct gdbarch_tdep *var, int num_fprs)
}
}
+static void
+set_variant_abi_fdpic (struct gdbarch_tdep *var)
+{
+ var->frv_abi = FRV_ABI_FDPIC;
+ var->register_names[fdpic_loadmap_exec_regnum] = xstrdup ("loadmap_exec");
+ var->register_names[fdpic_loadmap_interp_regnum] = xstrdup ("loadmap_interp");
+}
static const char *
frv_register_name (int reg)
@@ -1276,6 +1328,7 @@ frv_gdbarch_init (struct gdbarch_info info, struct gdbarch_list *arches)
{
struct gdbarch *gdbarch;
struct gdbarch_tdep *var;
+ int elf_flags = 0;
/* Check to see if we've already built an appropriate architecture
object for this executable. */
@@ -1305,7 +1358,14 @@ frv_gdbarch_init (struct gdbarch_info info, struct gdbarch_list *arches)
/* Never heard of this variant. */
return 0;
}
-
+
+ /* Extract the ELF flags, if available. */
+ if (info.abfd && bfd_get_flavour (info.abfd) == bfd_target_elf_flavour)
+ elf_flags = elf_elfheader (info.abfd)->e_flags;
+
+ if (elf_flags & EF_FRV_FDPIC)
+ set_variant_abi_fdpic (var);
+
gdbarch = gdbarch_alloc (&info, var);
set_gdbarch_short_bit (gdbarch, 16);
diff --git a/gdb/frv-tdep.h b/gdb/frv-tdep.h
new file mode 100644
index 0000000..3bb9d84
--- /dev/null
+++ b/gdb/frv-tdep.h
@@ -0,0 +1,35 @@
+/* Architecture-dependent code for the Fujitsu FR-V, for GDB, the GNU Debugger.
+ Copyright 2004 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. */
+
+/* Enumerate the possible ABIs for FR-V. */
+enum frv_abi
+ {
+ FRV_ABI_EABI,
+ FRV_ABI_FDPIC
+ };
+
+/* Return the FR-V ABI associated with GDBARCH. */
+enum frv_abi frv_abi (struct gdbarch *gdbarch);
+
+/* Fetch the interpreter and executable loadmap addresses (for shared
+ library support) for the FDPIC ABI. Return 0 if successful, -1 if
+ not. (E.g, -1 will be returned if the ABI isn't the FDPIC ABI.) */
+int frv_fdpic_loadmap_addresses (struct gdbarch *gdbarch,
+ CORE_ADDR *interp_addr, CORE_ADDR *exec_addr);
generated by cgit v1.1 at 2024-11-29 12:34:59 +0000