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-rw-r--r--gdb/gdbarch.c1021
1 files changed, 0 insertions, 1021 deletions
diff --git a/gdb/gdbarch.c b/gdb/gdbarch.c
deleted file mode 100644
index 272362f..0000000
--- a/gdb/gdbarch.c
+++ /dev/null
@@ -1,1021 +0,0 @@
-/* Semi-dynamic architecture support for GDB, the GNU debugger.
- Copyright 1998, 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. */
-
-#include "defs.h"
-#include "bfd.h"
-#include "gdbcmd.h"
-
-
-/* start-sanitize-carp start-sanitize-vr4xxx */
-/* Convenience macro for allocting memory. */
-
-#ifndef XMALLOC
-#define XMALLOC(TYPE) (TYPE*) xmalloc (sizeof (TYPE))
-#endif
-
-/* end-sanitize-carp end-sanitize-vr4xxx */
-
-/* Non-zero if we want to trace architecture code. */
-
-#ifndef GDBARCH_DEBUG
-#define GDBARCH_DEBUG 0
-#endif
-int gdbarch_debug = GDBARCH_DEBUG;
-
-/* start-sanitize-carp start-sanitize-vr4xxx */
-
-/* Maintain the struct gdbarch object */
-
-struct gdbarch
-{
- /* basic architectural information */
- const struct bfd_arch_info *bfd_arch_info;
- int byte_order;
-
- /* target specific vector. */
- struct gdbarch_tdep *tdep;
-
- /* per-architecture data-pointers */
- int nr_data;
- void **data;
-
- /* per-architecture swap-regions */
- struct gdbarch_swap *swap;
-
- /* Multi-arch values.
-
- When adding to the below you must also: declare/define set/get
- value functions; override the corresponding macro in gdbarch.h;
- if zero/NULL is not a suitable default, initialize the field in
- gdbarch_alloc(); confirm that the target updated the value
- correctly in verify_gdbarch(); add a fprintf_unfiltered call to
- gdbarch_update() so that the new field is dumped out; append an
- initial value to the static variable ``default_gdbarch'' (base
- values on the host's c-type system). */
-
- int long_bit;
- int long_long_bit;
- int ptr_bit;
-
-};
-
-
-struct gdbarch_tdep *
-gdbarch_tdep (gdbarch)
- struct gdbarch *gdbarch;
-{
- return gdbarch->tdep;
-}
-
-const struct bfd_arch_info *
-gdbarch_bfd_arch_info (gdbarch)
- struct gdbarch *gdbarch;
-{
- return gdbarch->bfd_arch_info;
-}
-
-int
-gdbarch_byte_order (gdbarch)
- struct gdbarch *gdbarch;
-{
- return gdbarch->byte_order;
-}
-
-int
-gdbarch_long_bit (gdbarch)
- struct gdbarch *gdbarch;
-{
- return gdbarch->long_bit;
-}
-
-void
-set_gdbarch_long_bit (gdbarch, long_bit)
- struct gdbarch *gdbarch;
- int long_bit;
-{
- gdbarch->long_bit = long_bit;
-}
-
-int
-gdbarch_long_long_bit (gdbarch)
- struct gdbarch *gdbarch;
-{
- return gdbarch->long_long_bit;
-}
-
-void
-set_gdbarch_long_long_bit (gdbarch, long_long_bit)
- struct gdbarch *gdbarch;
- int long_long_bit;
-{
- gdbarch->long_long_bit = long_long_bit;
-}
-
-int
-gdbarch_ptr_bit (gdbarch)
- struct gdbarch *gdbarch;
-{
- return gdbarch->ptr_bit;
-}
-
-void
-set_gdbarch_ptr_bit (gdbarch, ptr_bit)
- struct gdbarch *gdbarch;
- int ptr_bit;
-{
- gdbarch->ptr_bit = ptr_bit;
-}
-
-
-/* Ensure that all values in a GDBARCH are reasonable. XXX - should
- this instead return a success/fail indication? */
-
-static void
-verify_gdbarch (gdbarch)
- struct gdbarch *gdbarch;
-{
- /* fundamental */
- if (gdbarch->byte_order == 0)
- fatal ("verify_gdbarch: byte-order unset");
- if (gdbarch->bfd_arch_info == NULL)
- fatal ("verify_gdbarch: bfd_arch_info unset");
- /* more general */
- if (gdbarch->long_bit == 0)
- fatal ("verify_gdbarch: long_bit invalid");
- if (gdbarch->long_long_bit == 0)
- fatal ("verify_gdbarch: long_long_bit invalid");
- if (gdbarch->ptr_bit == 0)
- fatal ("verify_gdbarch: ptr_bit invalid");
-}
-
-
-/* Keep a registrary of per-architecture data-pointers required by GDB
- modules. */
-
-struct gdbarch_data
-{
- int index;
-};
-
-struct gdbarch_data_registration
-{
- gdbarch_data_ftype *init;
- struct gdbarch_data *data;
- struct gdbarch_data_registration *next;
-};
-
-struct gdbarch_data_registrary
-{
- int nr;
- struct gdbarch_data_registration *registrations;
-};
-
-struct gdbarch_data_registrary gdbarch_data_registrary =
-{
- 0, NULL,
-};
-
-struct gdbarch_data *
-register_gdbarch_data (init)
- gdbarch_data_ftype *init;
-{
- struct gdbarch_data_registration **curr;
- for (curr = &gdbarch_data_registrary.registrations;
- (*curr) != NULL;
- curr = &(*curr)->next);
- (*curr) = XMALLOC (struct gdbarch_data_registration);
- (*curr)->next = NULL;
- (*curr)->init = init;
- (*curr)->data = XMALLOC (struct gdbarch_data);
- (*curr)->data->index = gdbarch_data_registrary.nr++;
- return (*curr)->data;
-}
-
-
-/* Walk through all the registered users initializing each in turn. */
-
-static void init_gdbarch_data PARAMS ((struct gdbarch *));
-static void
-init_gdbarch_data (gdbarch)
- struct gdbarch *gdbarch;
-{
- struct gdbarch_data_registration *rego;
- gdbarch->nr_data = gdbarch_data_registrary.nr + 1;
- gdbarch->data = xmalloc (sizeof (void*) * gdbarch->nr_data);
- for (rego = gdbarch_data_registrary.registrations;
- rego != NULL;
- rego = rego->next)
- {
- if (rego->data->index < gdbarch->nr_data)
- gdbarch->data[rego->data->index] = rego->init ();
- }
-}
-
-
-/* Return the current value of the specified per-architecture
- data-pointer. */
-
-void *
-gdbarch_data (data)
- struct gdbarch_data *data;
-{
- if (data->index >= current_gdbarch->nr_data)
- fatal ("gdbarch_data: request for non-existant data.");
- return current_gdbarch->data[data->index];
-}
-
-
-
-/* Keep a registrary of swaped data required by GDB modules. */
-
-struct gdbarch_swap
-{
- void *swap;
- struct gdbarch_swap_registration *source;
- struct gdbarch_swap *next;
-};
-
-struct gdbarch_swap_registration
-{
- void *data;
- unsigned long sizeof_data;
- gdbarch_swap_ftype *init;
- struct gdbarch_swap_registration *next;
-};
-
-struct gdbarch_swap_registrary
-{
- int nr;
- struct gdbarch_swap_registration *registrations;
-};
-
-struct gdbarch_swap_registrary gdbarch_swap_registrary =
-{
- 0, NULL,
-};
-
-void
-register_gdbarch_swap (data, sizeof_data, init)
- void *data;
- unsigned long sizeof_data;
- gdbarch_swap_ftype *init;
-{
- struct gdbarch_swap_registration **rego;
- for (rego = &gdbarch_swap_registrary.registrations;
- (*rego) != NULL;
- rego = &(*rego)->next);
- (*rego) = XMALLOC (struct gdbarch_swap_registration);
- (*rego)->next = NULL;
- (*rego)->init = init;
- (*rego)->data = data;
- (*rego)->sizeof_data = sizeof_data;
-}
-
-
-static void init_gdbarch_swap PARAMS ((struct gdbarch *));
-static void
-init_gdbarch_swap (gdbarch)
- struct gdbarch *gdbarch;
-{
- struct gdbarch_swap_registration *rego;
- struct gdbarch_swap **curr = &gdbarch->swap;
- for (rego = gdbarch_swap_registrary.registrations;
- rego != NULL;
- rego = rego->next)
- {
- if (rego->data != NULL)
- {
- (*curr) = XMALLOC (struct gdbarch_swap);
- (*curr)->source = rego;
- (*curr)->swap = xmalloc (rego->sizeof_data);
- (*curr)->next = NULL;
- memset (rego->data, 0, rego->sizeof_data);
- curr = &(*curr)->next;
- }
- if (rego->init != NULL)
- rego->init ();
- }
-}
-
-static void swapout_gdbarch_swap PARAMS ((struct gdbarch *));
-static void
-swapout_gdbarch_swap (gdbarch)
- struct gdbarch *gdbarch;
-{
- struct gdbarch_swap *curr;
- for (curr = gdbarch->swap;
- curr != NULL;
- curr = curr->next)
- memcpy (curr->swap, curr->source->data, curr->source->sizeof_data);
-}
-
-static void swapin_gdbarch_swap PARAMS ((struct gdbarch *));
-static void
-swapin_gdbarch_swap (gdbarch)
- struct gdbarch *gdbarch;
-{
- struct gdbarch_swap *curr;
- for (curr = gdbarch->swap;
- curr != NULL;
- curr = curr->next)
- memcpy (curr->source->data, curr->swap, curr->source->sizeof_data);
-}
-
-
-/* Keep a registrary of the architectures known by GDB. */
-
-struct gdbarch_init_registration
-{
- enum bfd_architecture bfd_architecture;
- gdbarch_init_ftype *init;
- struct gdbarch_list *arches;
- struct gdbarch_init_registration *next;
-};
-
-static struct gdbarch_init_registration *gdbarch_init_registrary = NULL;
-
-void
-register_gdbarch_init (bfd_architecture, init)
- enum bfd_architecture bfd_architecture;
- gdbarch_init_ftype *init;
-{
- struct gdbarch_init_registration **curr;
- const struct bfd_arch_info *bfd_arch_info;
- /* Check that BFD reconizes this architecture */
- bfd_arch_info = bfd_lookup_arch (bfd_architecture, 0);
- if (bfd_arch_info == NULL)
- {
- fatal ("Attempt to register unknown architecture (%d)", bfd_architecture);
- }
- /* Check that we haven't seen this architecture before */
- for (curr = &gdbarch_init_registrary;
- (*curr) != NULL;
- curr = &(*curr)->next)
- {
- if (bfd_architecture == (*curr)->bfd_architecture)
- fatal ("Duplicate registraration of architecture (%s)",
- bfd_arch_info->printable_name);
- }
- /* log it */
- if (gdbarch_debug)
- fprintf_unfiltered (gdb_stderr, "register_gdbarch_init (%s, 0x%08lx)\n",
- bfd_arch_info->printable_name,
- (long) init);
- /* Append it */
- (*curr) = XMALLOC (struct gdbarch_init_registration);
- (*curr)->bfd_architecture = bfd_architecture;
- (*curr)->init = init;
- (*curr)->arches = NULL;
- (*curr)->next = NULL;
-}
-
-
-
-/* Look for an architecture using gdbarch_info. Base search on only
- BFD_ARCH_INFO and BYTE_ORDER. */
-
-struct gdbarch_list *
-gdbarch_list_lookup_by_info (arches, info)
- struct gdbarch_list *arches;
- const struct gdbarch_info *info;
-{
- for (; arches != NULL; arches = arches->next)
- {
- if (info->bfd_arch_info != arches->gdbarch->bfd_arch_info)
- continue;
- if (info->byte_order != arches->gdbarch->byte_order)
- continue;
- return arches;
- }
- return NULL;
-}
-
-
-/* Create a new ``struct gdbarch'' based in information provied by
- ``struct gdbarch_info'' */
-
-struct gdbarch *
-gdbarch_alloc (info, tdep)
- const struct gdbarch_info *info;
- struct gdbarch_tdep *tdep;
-{
- struct gdbarch *gdbarch = XMALLOC (struct gdbarch);
- memset (gdbarch, 0, sizeof (*gdbarch));
-
- gdbarch->tdep = tdep;
-
- gdbarch->bfd_arch_info = info->bfd_arch_info;
- gdbarch->byte_order = info->byte_order;
-
- return gdbarch;
-}
-
-/* Update the current architecture. Return ZERO if the update request
- failed. */
-
-int
-gdbarch_update (info)
- struct gdbarch_info info;
-{
- struct gdbarch *new_gdbarch;
- struct gdbarch_list **list;
- struct gdbarch_init_registration *rego;
-
- /* Fill in any missing bits. Most important is the bfd_architecture
- which is used to select the target architecture. */
- if (info.bfd_architecture == bfd_arch_unknown)
- {
- if (info.bfd_arch_info != NULL)
- info.bfd_architecture = info.bfd_arch_info->arch;
- else if (info.abfd != NULL)
- info.bfd_architecture = bfd_get_arch (info.abfd);
- /* FIXME - should query BFD for its default architecture. */
- else
- info.bfd_architecture = current_gdbarch->bfd_arch_info->arch;
- }
- if (info.bfd_arch_info == NULL)
- {
- if (target_architecture_auto && info.abfd != NULL)
- info.bfd_arch_info = bfd_get_arch_info (info.abfd);
- else
- info.bfd_arch_info = current_gdbarch->bfd_arch_info;
- }
- if (info.byte_order == 0)
- {
- if (target_byte_order_auto && info.abfd != NULL)
- info.byte_order = (bfd_big_endian (info.abfd) ? BIG_ENDIAN
- : bfd_little_endian (info.abfd) ? LITTLE_ENDIAN
- : 0);
- else
- info.byte_order = current_gdbarch->byte_order;
- }
- /* A default for abfd? */
-
- /* Find the target that knows about this architecture. */
- for (rego = gdbarch_init_registrary;
- rego != NULL && rego->bfd_architecture != info.bfd_architecture;
- rego = rego->next);
- if (rego == NULL)
- {
- if (gdbarch_debug)
- fprintf_unfiltered (gdb_stderr, "gdbarch_update: No matching architecture\n");
- return 0;
- }
-
- if (gdbarch_debug)
- {
- fprintf_unfiltered (gdb_stderr,
- "gdbarch_update: info.bfd_architecture %d (%s)\n",
- info.bfd_architecture,
- bfd_lookup_arch (info.bfd_architecture, 0)->printable_name);
- fprintf_unfiltered (gdb_stderr,
- "gdbarch_update: info.bfd_arch_info %s\n",
- (info.bfd_arch_info != NULL
- ? info.bfd_arch_info->printable_name
- : "(null)"));
- fprintf_unfiltered (gdb_stderr,
- "gdbarch_update: info.byte_order %d (%s)\n",
- info.byte_order,
- (info.byte_order == BIG_ENDIAN ? "big"
- : info.byte_order == LITTLE_ENDIAN ? "little"
- : "default"));
- fprintf_unfiltered (gdb_stderr,
- "gdbarch_update: info.abfd 0x%lx\n",
- (long) info.abfd);
- fprintf_unfiltered (gdb_stderr,
- "gdbarch_update: info.tdep_info 0x%lx\n",
- (long) info.tdep_info);
- }
-
- /* Ask the target for a replacement architecture. */
- new_gdbarch = rego->init (info, rego->arches);
-
- /* Did the target like it? No. Reject the change. */
- if (new_gdbarch == NULL)
- {
- if (gdbarch_debug)
- fprintf_unfiltered (gdb_stderr, "gdbarch_update: Target rejected architecture\n");
- return 0;
- }
-
- /* Did the architecture change? No. Do nothing. */
- if (current_gdbarch == new_gdbarch)
- {
- if (gdbarch_debug)
- fprintf_unfiltered (gdb_stderr, "gdbarch_update: Architecture 0x%08lx (%s) unchanged\n",
- (long) new_gdbarch,
- new_gdbarch->bfd_arch_info->printable_name);
- return 1;
- }
-
- /* Swap all data belonging to the old target out */
- swapout_gdbarch_swap (current_gdbarch);
-
- /* Is this a pre-existing architecture? Yes. Swap it in. */
- for (list = &rego->arches;
- (*list) != NULL;
- list = &(*list)->next)
- {
- if ((*list)->gdbarch == new_gdbarch)
- {
- if (gdbarch_debug)
- fprintf_unfiltered (gdb_stderr, "gdbarch_update: Previous architecture 0x%08lx (%s) selected\n",
- (long) new_gdbarch,
- new_gdbarch->bfd_arch_info->printable_name);
- current_gdbarch = new_gdbarch;
- swapin_gdbarch_swap (new_gdbarch);
- return 1;
- }
- }
-
- /* Append this new architecture to this targets list. */
- (*list) = XMALLOC (struct gdbarch_list);
- (*list)->next = NULL;
- (*list)->gdbarch = new_gdbarch;
-
- /* Switch to this new architecture. Dump it out. */
- current_gdbarch = new_gdbarch;
- if (gdbarch_debug)
- {
- fprintf_unfiltered (gdb_stderr,
- "gdbarch_update: New architecture 0x%08lx (%s) selected\n",
- (long) new_gdbarch,
- new_gdbarch->bfd_arch_info->printable_name);
- fprintf_unfiltered (gdb_stderr,
- "gdbarch_update: TARGET_BYTE_ORDER = %d (%s)\n",
- TARGET_BYTE_ORDER,
- (TARGET_BYTE_ORDER == BIG_ENDIAN ? "big"
- : TARGET_BYTE_ORDER == LITTLE_ENDIAN ? "little"
- : "default"));
- fprintf_unfiltered (gdb_stderr,
- "gdbarch_update: TARGET_LONG_BIT = %d\n",
- TARGET_LONG_BIT);
- fprintf_unfiltered (gdb_stderr,
- "gdbarch_update: TARGET_LONG_LONG_BIT = %d\n",
- TARGET_LONG_LONG_BIT);
- fprintf_unfiltered (gdb_stderr,
- "gdbarch_update: TARGET_PTR_BIT = %d\n",
- TARGET_PTR_BIT);
- }
-
- /* Check that the newly installed architecture is valid. */
- verify_gdbarch (new_gdbarch);
-
- /* Initialize the per-architecture memory (swap) areas.
- CURRENT_GDBARCH must be update before these modules are
- called. */
- init_gdbarch_swap (new_gdbarch);
-
- /* Initialize the per-architecture data-pointer of all parties that
- registered an interest in this architecture. CURRENT_GDBARCH
- must be updated before these modules are called. */
- init_gdbarch_data (new_gdbarch);
-
- return 1;
-}
-
-
-/* end-sanitize-carp end-sanitize-vr4xxx */
-
-/* Functions to manipulate the endianness of the target. */
-
-#ifdef TARGET_BYTE_ORDER_SELECTABLE
-/* compat - Catch old targets that expect a selectable byte-order to
- default to BIG_ENDIAN */
-#ifndef TARGET_BYTE_ORDER_DEFAULT
-#define TARGET_BYTE_ORDER_DEFAULT BIG_ENDIAN
-#endif
-#endif
-#ifndef TARGET_BYTE_ORDER_DEFAULT
-/* compat - Catch old non byte-order selectable targets that do not
- define TARGET_BYTE_ORDER_DEFAULT and instead expect
- TARGET_BYTE_ORDER to be used as the default. For targets that
- defined neither TARGET_BYTE_ORDER nor TARGET_BYTE_ORDER_DEFAULT the
- below will get a strange compiler warning. */
-#define TARGET_BYTE_ORDER_DEFAULT TARGET_BYTE_ORDER
-#endif
-int target_byte_order = TARGET_BYTE_ORDER_DEFAULT;
-int target_byte_order_auto = 1;
-
-/* Chain containing the \"set endian\" commands. */
-static struct cmd_list_element *endianlist = NULL;
-
-/* Called by ``show endian''. */
-static void show_endian PARAMS ((char *, int));
-static void
-show_endian (args, from_tty)
- char *args;
- int from_tty;
-{
- char *msg =
- (TARGET_BYTE_ORDER_AUTO
- ? "The target endianness is set automatically (currently %s endian)\n"
- : "The target is assumed to be %s endian\n");
- printf_unfiltered (msg, (TARGET_BYTE_ORDER == BIG_ENDIAN ? "big" : "little"));
-}
-
-/* Called if the user enters ``set endian'' without an argument. */
-static void set_endian PARAMS ((char *, int));
-static void
-set_endian (args, from_tty)
- char *args;
- int from_tty;
-{
- printf_unfiltered ("\"set endian\" must be followed by \"auto\", \"big\" or \"little\".\n");
- show_endian (args, from_tty);
-}
-
-/* Called by ``set endian big''. */
-static void set_endian_big PARAMS ((char *, int));
-static void
-set_endian_big (args, from_tty)
- char *args;
- int from_tty;
-{
- if (TARGET_BYTE_ORDER_SELECTABLE_P)
- {
- target_byte_order = BIG_ENDIAN;
- target_byte_order_auto = 0;
- /* start-sanitize-carp start-sanitize-vr4xxx */
- if (GDB_MULTI_ARCH)
- {
- struct gdbarch_info info;
- memset (&info, 0, sizeof info);
- info.byte_order = BIG_ENDIAN;
- gdbarch_update (info);
- }
- /* end-sanitize-carp end-sanitize-vr4xxx */
- }
- else
- {
- printf_unfiltered ("Byte order is not selectable.");
- show_endian (args, from_tty);
- }
-}
-
-/* Called by ``set endian little''. */
-static void set_endian_little PARAMS ((char *, int));
-static void
-set_endian_little (args, from_tty)
- char *args;
- int from_tty;
-{
- if (TARGET_BYTE_ORDER_SELECTABLE_P)
- {
- target_byte_order = LITTLE_ENDIAN;
- target_byte_order_auto = 0;
- /* start-sanitize-carp start-sanitize-vr4xxx */
- if (GDB_MULTI_ARCH)
- {
- struct gdbarch_info info;
- memset (&info, 0, sizeof info);
- info.byte_order = LITTLE_ENDIAN;
- gdbarch_update (info);
- }
- /* end-sanitize-carp end-sanitize-vr4xxx */
- }
- else
- {
- printf_unfiltered ("Byte order is not selectable.");
- show_endian (args, from_tty);
- }
-}
-
-/* Called by ``set endian auto''. */
-static void set_endian_auto PARAMS ((char *, int));
-static void
-set_endian_auto (args, from_tty)
- char *args;
- int from_tty;
-{
- if (TARGET_BYTE_ORDER_SELECTABLE_P)
- {
- target_byte_order_auto = 1;
- }
- else
- {
- printf_unfiltered ("Byte order is not selectable.");
- show_endian (args, from_tty);
- }
-}
-
-/* Set the endianness from a BFD. */
-static void set_endian_from_file PARAMS ((bfd *));
-static void
-set_endian_from_file (abfd)
- bfd *abfd;
-{
- if (TARGET_BYTE_ORDER_SELECTABLE_P)
- {
- int want;
-
- if (bfd_big_endian (abfd))
- want = BIG_ENDIAN;
- else
- want = LITTLE_ENDIAN;
- if (TARGET_BYTE_ORDER_AUTO)
- target_byte_order = want;
- else if (TARGET_BYTE_ORDER != want)
- warning ("%s endian file does not match %s endian target.",
- want == BIG_ENDIAN ? "big" : "little",
- TARGET_BYTE_ORDER == BIG_ENDIAN ? "big" : "little");
- }
- else
- {
- if (bfd_big_endian (abfd)
- ? TARGET_BYTE_ORDER != BIG_ENDIAN
- : TARGET_BYTE_ORDER == BIG_ENDIAN)
- warning ("%s endian file does not match %s endian target.",
- bfd_big_endian (abfd) ? "big" : "little",
- TARGET_BYTE_ORDER == BIG_ENDIAN ? "big" : "little");
- }
-}
-
-
-
-/* Functions to manipulate the architecture of the target */
-
-int target_architecture_auto = 1;
-extern const struct bfd_arch_info bfd_default_arch_struct;
-const struct bfd_arch_info *target_architecture = &bfd_default_arch_struct;
-int (*target_architecture_hook) PARAMS ((const struct bfd_arch_info *ap));
-
-/* Do the real work of changing the current architecture */
-static void
-set_arch (arch)
- const struct bfd_arch_info *arch;
-{
- /* FIXME: Is it compatible with gdb? */
- /* Check with the target on the setting */
- if (target_architecture_hook != NULL
- && !target_architecture_hook (arch))
- printf_unfiltered ("Target does not support `%s' architecture.\n",
- arch->printable_name);
- else
- {
- target_architecture_auto = 0;
- target_architecture = arch;
- }
-}
-
-/* Called if the user enters ``show architecture'' without an argument. */
-static void show_architecture PARAMS ((char *, int));
-static void
-show_architecture (args, from_tty)
- char *args;
- int from_tty;
-{
- const char *arch;
- arch = TARGET_ARCHITECTURE->printable_name;
- if (target_architecture_auto)
- printf_filtered ("The target architecture is set automatically (currently %s)\n", arch);
- else
- printf_filtered ("The target architecture is assumed to be %s\n", arch);
-}
-
-/* Called if the user enters ``set architecture'' with or without an
- argument. */
-static void set_architecture PARAMS ((char *, int));
-static void
-set_architecture (args, from_tty)
- char *args;
- int from_tty;
-{
- if (args == NULL)
- {
- printf_unfiltered ("\"set architecture\" must be followed by \"auto\" or an architecture name.\n");
- }
- else if (strcmp (args, "auto") == 0)
- {
- target_architecture_auto = 1;
- }
- /* start-sanitize-carp start-sanitize-vr4xxx */
- else if (GDB_MULTI_ARCH)
- {
- const struct bfd_arch_info *arch = bfd_scan_arch (args);
- if (arch == NULL)
- printf_unfiltered ("Architecture `%s' not reconized.\n", args);
- else
- {
- struct gdbarch_info info;
- memset (&info, 0, sizeof info);
- info.bfd_arch_info = arch;
- if (gdbarch_update (info))
- target_architecture_auto = 0;
- else
- printf_unfiltered ("Architecture `%s' not reconized.\n", args);
- }
- }
- /* end-sanitize-carp end-sanitize-vr4xxx */
- else
- {
- const struct bfd_arch_info *arch = bfd_scan_arch (args);
- if (arch != NULL)
- set_arch (arch);
- else
- printf_unfiltered ("Architecture `%s' not reconized.\n", args);
- }
-}
-
-/* Called if the user enters ``info architecture'' without an argument. */
-static void info_architecture PARAMS ((char *, int));
-static void
-info_architecture (args, from_tty)
- char *args;
- int from_tty;
-{
- enum bfd_architecture a;
- /* start-sanitize-carp start-sanitize-vr4xxx */
- if (GDB_MULTI_ARCH)
- {
- if (gdbarch_init_registrary != NULL)
- {
- struct gdbarch_init_registration *rego;
- printf_filtered ("Available architectures are:\n");
- for (rego = gdbarch_init_registrary;
- rego != NULL;
- rego = rego->next)
- {
- const struct bfd_arch_info *ap;
- ap = bfd_lookup_arch (rego->bfd_architecture, 0);
- if (ap != NULL)
- {
- do
- {
- printf_filtered (" %s", ap->printable_name);
- ap = ap->next;
- }
- while (ap != NULL);
- printf_filtered ("\n");
- }
- }
- }
- else
- {
- printf_filtered ("There are no available architectures.\n");
- }
- return;
- }
- /* end-sanitize-carp end-sanitize-vr4xxx */
- printf_filtered ("Available architectures are:\n");
- for (a = bfd_arch_obscure + 1; a < bfd_arch_last; a++)
- {
- const struct bfd_arch_info *ap = bfd_lookup_arch (a, 0);
- if (ap != NULL)
- {
- do
- {
- printf_filtered (" %s", ap->printable_name);
- ap = ap->next;
- }
- while (ap != NULL);
- printf_filtered ("\n");
- }
- }
-}
-
-/* Set the architecture from arch/machine */
-void
-set_architecture_from_arch_mach (arch, mach)
- enum bfd_architecture arch;
- unsigned long mach;
-{
- const struct bfd_arch_info *wanted = bfd_lookup_arch (arch, mach);
- if (wanted != NULL)
- set_arch (wanted);
- else
- fatal ("hardwired architecture/machine not reconized");
-}
-
-/* Set the architecture from a BFD */
-static void set_architecture_from_file PARAMS ((bfd *));
-static void
-set_architecture_from_file (abfd)
- bfd *abfd;
-{
- const struct bfd_arch_info *wanted = bfd_get_arch_info (abfd);
- if (target_architecture_auto)
- {
- if (target_architecture_hook != NULL
- && !target_architecture_hook (wanted))
- warning ("Target may not support %s architecture",
- wanted->printable_name);
- target_architecture = wanted;
- }
- else if (wanted != target_architecture)
- {
- warning ("%s architecture file may be incompatible with %s target.",
- wanted->printable_name,
- target_architecture->printable_name);
- }
-}
-
-
-
-/* Disassembler */
-
-/* Pointer to the target-dependent disassembly function. */
-int (*tm_print_insn) PARAMS ((bfd_vma, disassemble_info *));
-disassemble_info tm_print_insn_info;
-
-
-
-/* Set the dynamic target-system-dependant parameters (architecture,
- byte-order) using information found in the BFD */
-
-void
-set_gdbarch_from_file (abfd)
- bfd *abfd;
-{
- /* start-sanitize-carp start-sanitize-vr4xxx */
- if (GDB_MULTI_ARCH)
- {
- struct gdbarch_info info;
- memset (&info, 0, sizeof info);
- info.abfd = abfd;
- gdbarch_update (info);
- return;
- }
- /* end-sanitize-carp end-sanitize-vr4xxx */
- set_architecture_from_file (abfd);
- set_endian_from_file (abfd);
-}
-
-/* start-sanitize-carp start-sanitize-vr4xxx */
-
-/* The default architecture uses host values (for want of a better
- choice). */
-
-struct gdbarch default_gdbarch = {
- /* basic architecture information */
- &bfd_default_arch_struct,
- TARGET_BYTE_ORDER_DEFAULT,
- /* target specific vector */
- NULL,
- /*per-architecture data-pointers and swap regions */
- 0, NULL, NULL,
- /* Multi-arch values */
- 8 * sizeof (long), /* long */
- 8 * sizeof (LONGEST), /* long long */
- 8 * sizeof (void*), /* ptr */
-};
-struct gdbarch *current_gdbarch = &default_gdbarch;
-
-/* end-sanitize-carp end-sanitize-vr4xxx */
-
-extern void _initialize_gdbarch PARAMS ((void));
-void
-_initialize_gdbarch ()
-{
- add_prefix_cmd ("endian", class_support, set_endian,
- "Set endianness of target.",
- &endianlist, "set endian ", 0, &setlist);
- add_cmd ("big", class_support, set_endian_big,
- "Set target as being big endian.", &endianlist);
- add_cmd ("little", class_support, set_endian_little,
- "Set target as being little endian.", &endianlist);
- add_cmd ("auto", class_support, set_endian_auto,
- "Select target endianness automatically.", &endianlist);
- add_cmd ("endian", class_support, show_endian,
- "Show endianness of target.", &showlist);
-
- add_cmd ("architecture", class_support, set_architecture,
- "Set architecture of target.", &setlist);
- add_alias_cmd ("processor", "architecture", class_support, 1, &setlist);
- add_cmd ("architecture", class_support, show_architecture,
- "Show architecture of target.", &showlist);
- add_cmd ("architecture", class_support, info_architecture,
- "List supported target architectures", &infolist);
-
- INIT_DISASSEMBLE_INFO_NO_ARCH (tm_print_insn_info, gdb_stdout, (fprintf_ftype)fprintf_filtered);
- tm_print_insn_info.flavour = bfd_target_unknown_flavour;
- tm_print_insn_info.read_memory_func = dis_asm_read_memory;
- tm_print_insn_info.memory_error_func = dis_asm_memory_error;
- tm_print_insn_info.print_address_func = dis_asm_print_address;
-
-#ifdef MAINTENANCE_CMDS
- add_show_from_set (add_set_cmd ("archdebug",
- class_maintenance,
- var_zinteger,
- (char *)&gdbarch_debug,
- "Set architecture debugging.\n\
-When non-zero, architecture debugging is enabled.", &setlist),
- &showlist);
-#endif
-}
generated by cgit v1.1 at 2024-10-17 21:20:38 +0000