static struct gdbarch_init_registration *gdbarch_init_registrary = NULL;
+static void
+append_name (const char ***buf, int *nr, const char *name)
+{
+ *buf = xrealloc (*buf, sizeof (char**) * (*nr + 1));
+ (*buf)[*nr] = name;
+ *nr += 1;
+}
+
+const char **
+gdbarch_printable_names (void)
+{
+ if (GDB_MULTI_ARCH)
+ {
+ /* Accumulate a list of names based on the registed list of
+ architectures. */
+ enum bfd_architecture a;
+ int nr_arches = 0;
+ const char **arches = NULL;
+ struct gdbarch_init_registration *rego;
+ 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)
+ internal_error ("gdbarch_architecture_names: multi-arch unknown");
+ do
+ {
+ append_name (&arches, &nr_arches, ap->printable_name);
+ ap = ap->next;
+ }
+ while (ap != NULL);
+ }
+ append_name (&arches, &nr_arches, NULL);
+ return arches;
+ }
+ else
+ /* Just return all the architectures that BFD knows. Assume that
+ the legacy architecture framework supports them. */
+ return bfd_arch_list ();
+}
+
+
void
register_gdbarch_init (enum bfd_architecture bfd_architecture,
gdbarch_init_ftype *init)
(*curr)->arches = NULL;
(*curr)->next = NULL;
}
-
/* Look for an architecture using gdbarch_info. Base search on only
-/* 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
-#if !TARGET_BYTE_ORDER_SELECTABLE_P
-#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
-#endif
-#ifndef TARGET_BYTE_ORDER_DEFAULT
-#define TARGET_BYTE_ORDER_DEFAULT BIG_ENDIAN /* arbitrary */
-#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 (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 (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 (char *args, int from_tty)
-{
- if (TARGET_BYTE_ORDER_SELECTABLE_P)
- {
- target_byte_order = BIG_ENDIAN;
- target_byte_order_auto = 0;
- if (GDB_MULTI_ARCH)
- {
- struct gdbarch_info info;
- memset (&info, 0, sizeof info);
- info.byte_order = BIG_ENDIAN;
- gdbarch_update (info);
- }
- }
- else
- {
- printf_unfiltered ("Byte order is not selectable.");
- show_endian (args, from_tty);
- }
-}
-
-/* Called by ``set endian little''. */
-static void
-set_endian_little (char *args, int from_tty)
-{
- if (TARGET_BYTE_ORDER_SELECTABLE_P)
- {
- target_byte_order = LITTLE_ENDIAN;
- target_byte_order_auto = 0;
- if (GDB_MULTI_ARCH)
- {
- struct gdbarch_info info;
- memset (&info, 0, sizeof info);
- info.byte_order = LITTLE_ENDIAN;
- gdbarch_update (info);
- }
- }
- else
- {
- printf_unfiltered ("Byte order is not selectable.");
- show_endian (args, from_tty);
- }
-}
-
-/* Called by ``set endian auto''. */
-static void
-set_endian_auto (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 (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 */
-
-enum set_arch { set_arch_auto, set_arch_manual };
-
-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) (const struct bfd_arch_info *ap);
-
-static void show_endian (char *, int);
-static void set_endian (char *, int);
-static void set_endian_big (char *, int);
-static void set_endian_little (char *, int);
-static void set_endian_auto (char *, int);
-static void set_endian_from_file (bfd *);
-static int arch_ok (const struct bfd_arch_info *arch);
-static void set_arch (const struct bfd_arch_info *arch, enum set_arch type);
-static void show_architecture (char *, int);
-static void set_architecture (char *, int);
-static void info_architecture (char *, int);
-static void set_architecture_from_file (bfd *);
-
-/* Do the real work of changing the current architecture */
-
-static int
-arch_ok (const struct bfd_arch_info *arch)
-{
- /* Should be performing the more basic check that the binary is
- compatible with GDB. */
- /* Check with the target that the architecture is valid. */
- return (target_architecture_hook == NULL
- || target_architecture_hook (arch));
-}
-
-static void
-set_arch (const struct bfd_arch_info *arch,
- enum set_arch type)
-{
- switch (type)
- {
- case set_arch_auto:
- if (!arch_ok (arch))
- warning ("Target may not support %s architecture",
- arch->printable_name);
- target_architecture = arch;
- break;
- case set_arch_manual:
- if (!arch_ok (arch))
- {
- printf_unfiltered ("Target does not support `%s' architecture.\n",
- arch->printable_name);
- }
- else
- {
- target_architecture_auto = 0;
- target_architecture = arch;
- }
- break;
- }
- if (gdbarch_debug)
- gdbarch_dump ();
-}
-
-/* Called if the user enters ``show architecture'' without an argument. */
-static void
-show_architecture (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 (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;
- }
- 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);
- }
- }
- else
- {
- const struct bfd_arch_info *arch = bfd_scan_arch (args);
- if (arch != NULL)
- set_arch (arch, set_arch_manual);
- else
- printf_unfiltered ("Architecture `%s' not reconized.\n", args);
- }
-}
-
-/* Called if the user enters ``info architecture'' without an argument. */
-static void
-info_architecture (char *args, int from_tty)
-{
- enum bfd_architecture a;
- 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;
- }
- 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, set_arch_manual);
- else
- internal_error ("gdbarch: hardwired architecture/machine not reconized");
-}
-
-/* Set the architecture from a BFD */
-static void
-set_architecture_from_file (bfd *abfd)
-{
- const struct bfd_arch_info *wanted = bfd_get_arch_info (abfd);
- if (target_architecture_auto)
- {
- set_arch (wanted, set_arch_auto);
- }
- 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. */
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;
-{
- if (GDB_MULTI_ARCH)
- {
- struct gdbarch_info info;
- memset (&info, 0, sizeof info);
- info.abfd = abfd;
- gdbarch_update (info);
- return;
- }
- set_architecture_from_file (abfd);
- set_endian_from_file (abfd);
-}
-
-
-/* Initialize the current architecture. */
-void
-initialize_current_architecture ()
-{
- if (GDB_MULTI_ARCH)
- {
- struct gdbarch_init_registration *rego;
- const struct bfd_arch_info *chosen = NULL;
- for (rego = gdbarch_init_registrary; rego != NULL; rego = rego->next)
- {
- const struct bfd_arch_info *ap
- = bfd_lookup_arch (rego->bfd_architecture, 0);
-
- /* Choose the first architecture alphabetically. */
- if (chosen == NULL
- || strcmp (ap->printable_name, chosen->printable_name) < 0)
- chosen = ap;
- }
-
- if (chosen != NULL)
- {
- struct gdbarch_info info;
- memset (&info, 0, sizeof info);
- info.bfd_arch_info = chosen;
- gdbarch_update (info);
- }
- }
-}
-
extern void _initialize_gdbarch (void);
+
void
_initialize_gdbarch ()
{
struct cmd_list_element *c;
- 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;
projects / deliverable / binutils-gdb.git / blobdiff