/* Dynamic architecture support for GDB, the GNU debugger.
- Copyright (C) 1998-2017 Free Software Foundation, Inc.
+ Copyright (C) 1998-2018 Free Software Foundation, Inc.
This file is part of GDB.
#include "dis-asm.h"
-struct displaced_step_closure *
-simple_displaced_step_copy_insn (struct gdbarch *gdbarch,
- CORE_ADDR from, CORE_ADDR to,
- struct regcache *regs)
-{
- size_t len = gdbarch_max_insn_length (gdbarch);
- gdb_byte *buf = (gdb_byte *) xmalloc (len);
-
- read_memory (from, buf, len);
- write_memory (to, buf, len);
-
- if (debug_displaced)
- {
- fprintf_unfiltered (gdb_stdlog, "displaced: copy %s->%s: ",
- paddress (gdbarch, from), paddress (gdbarch, to));
- displaced_step_dump_bytes (gdb_stdlog, buf, len);
- }
-
- return (struct displaced_step_closure *) buf;
-}
-
-
-void
-simple_displaced_step_free_closure (struct gdbarch *gdbarch,
- struct displaced_step_closure *closure)
-{
- xfree (closure);
-}
-
int
default_displaced_step_hw_singlestep (struct gdbarch *gdbarch,
struct displaced_step_closure *closure)
}
static void
-set_endian (char *ignore_args, int from_tty, struct cmd_list_element *c)
+set_endian (const char *ignore_args, int from_tty, struct cmd_list_element *c)
{
struct gdbarch_info info;
argument. */
static void
-set_architecture (char *ignore_args, int from_tty, struct cmd_list_element *c)
+set_architecture (const char *ignore_args,
+ int from_tty, struct cmd_list_element *c)
{
struct gdbarch_info info;
memset (info, 0, sizeof (struct gdbarch_info));
info->byte_order = BFD_ENDIAN_UNKNOWN;
info->byte_order_for_code = info->byte_order;
- info->osabi = GDB_OSABI_UNINITIALIZED;
}
/* Similar to init, but this time fill in the blanks. Information is
/* "(gdb) set osabi ...". Handled by gdbarch_lookup_osabi. */
/* From the manual override, or from file. */
- if (info->osabi == GDB_OSABI_UNINITIALIZED)
+ if (info->osabi == GDB_OSABI_UNKNOWN)
info->osabi = gdbarch_lookup_osabi (info->abfd);
/* From the target. */
+
if (info->osabi == GDB_OSABI_UNKNOWN && info->target_desc != NULL)
info->osabi = tdesc_osabi (info->target_desc);
/* From the configured default. */
if (info->osabi == GDB_OSABI_UNKNOWN)
info->osabi = GDB_OSABI_DEFAULT;
#endif
+ /* If we still don't know which osabi to pick, pick none. */
+ if (info->osabi == GDB_OSABI_UNKNOWN)
+ info->osabi = GDB_OSABI_NONE;
/* Must have at least filled in the architecture. */
gdb_assert (info->bfd_arch_info != NULL);
int
default_fast_tracepoint_valid_at (struct gdbarch *gdbarch, CORE_ADDR addr,
- char **msg)
+ std::string *msg)
{
/* We don't know if maybe the target has some way to do fast
tracepoints that doesn't need gdbarch, so always say yes. */
if (msg)
- *msg = NULL;
+ msg->clear ();
return 1;
}
void
default_skip_permanent_breakpoint (struct regcache *regcache)
{
- struct gdbarch *gdbarch = get_regcache_arch (regcache);
+ struct gdbarch *gdbarch = regcache->arch ();
CORE_ADDR current_pc = regcache_read_pc (regcache);
int bp_len;
{
disassembler_ftype disassemble_fn;
- if (exec_bfd != NULL)
- {
- gdb_assert (info->arch == bfd_get_arch (exec_bfd));
- gdb_assert (info->endian == (bfd_big_endian (exec_bfd)
- ? BFD_ENDIAN_BIG : BFD_ENDIAN_LITTLE));
- gdb_assert (info->mach == bfd_get_mach (exec_bfd));
- }
disassemble_fn = disassembler (info->arch, info->endian == BFD_ENDIAN_BIG,
info->mach, exec_bfd);
return (*disassemble_fn) (memaddr, info);
}
-/* -Wmissing-prototypes */
-extern initialize_file_ftype _initialize_gdbarch_utils;
+/* See arch-utils.h. */
+
+CORE_ADDR
+gdbarch_skip_prologue_noexcept (gdbarch *gdbarch, CORE_ADDR pc) noexcept
+{
+ CORE_ADDR new_pc = pc;
+
+ TRY
+ {
+ new_pc = gdbarch_skip_prologue (gdbarch, pc);
+ }
+ CATCH (ex, RETURN_MASK_ALL)
+ {}
+ END_CATCH
+
+ return new_pc;
+}
+
+/* See arch-utils.h. */
+
+bool
+default_in_indirect_branch_thunk (gdbarch *gdbarch, CORE_ADDR pc)
+{
+ return false;
+}
void
_initialize_gdbarch_utils (void)