/* Dynamic architecture support for GDB, the GNU debugger.
- Copyright (C) 1998-2019 Free Software Foundation, Inc.
+ Copyright (C) 1998-2020 Free Software Foundation, Inc.
This file is part of GDB.
#include "language.h"
#include "symtab.h"
-#include "common/version.h"
+#include "gdbsupport/version.h"
#include "floatformat.h"
gdb_assert (regnum >= 0 && regnum < gdbarch_num_regs (gdbarch));
/* NOTE: cagney/2002-05-13: The old code did it this way and it is
suspected that some GDB/SIM combinations may rely on this
- behavour. The default should be one2one_register_sim_regno
+ behaviour. The default should be one2one_register_sim_regno
(below). */
if (gdbarch_register_name (gdbarch, regnum) != NULL
&& gdbarch_register_name (gdbarch, regnum)[0] != '\0')
SELECTED may be NULL, in which case we return the architecture
associated with TARGET_DESC. If SELECTED specifies a variant
- of the architecture associtated with TARGET_DESC, return the
+ of the architecture associated with TARGET_DESC, return the
more specific of the two.
If SELECTED is a different architecture, but it is accepted as
/* Usually, the return value's address is stored the in the "first hidden"
parameter if the return value should be passed by reference, as
specified in ABI. */
- return language_pass_by_reference (type);
+ return !(language_pass_by_reference (type).trivially_copyable);
}
int default_insn_is_call (struct gdbarch *gdbarch, CORE_ADDR addr)
return 0;
}
+/* See arch-utils.h. */
+
+bool
+default_program_breakpoint_here_p (struct gdbarch *gdbarch,
+ CORE_ADDR address)
+{
+ int len;
+ const gdb_byte *bpoint = gdbarch_breakpoint_from_pc (gdbarch, &address, &len);
+
+ /* Software breakpoints unsupported? */
+ if (bpoint == nullptr)
+ return false;
+
+ gdb_byte *target_mem = (gdb_byte *) alloca (len);
+
+ /* Enable the automatic memory restoration from breakpoints while
+ we read the memory. Otherwise we may find temporary breakpoints, ones
+ inserted by GDB, and flag them as permanent breakpoints. */
+ scoped_restore restore_memory
+ = make_scoped_restore_show_memory_breakpoints (0);
+
+ if (target_read_memory (address, target_mem, len) == 0)
+ {
+ /* Check if this is a breakpoint instruction for this architecture,
+ including ones used by GDB. */
+ if (memcmp (target_mem, bpoint, len) == 0)
+ return true;
+ }
+
+ return false;
+}
+
void
default_skip_permanent_breakpoint (struct regcache *regcache)
{
/* -mcmodel=large is used so that no GOT (Global Offset Table) is needed to be
created in inferior memory by GDB (normally it is set by ld.so). */
-char *
+std::string
default_gcc_target_options (struct gdbarch *gdbarch)
{
- return xstrprintf ("-m%d%s", gdbarch_ptr_bit (gdbarch),
- gdbarch_ptr_bit (gdbarch) == 64 ? " -mcmodel=large" : "");
+ return string_printf ("-m%d%s", gdbarch_ptr_bit (gdbarch),
+ (gdbarch_ptr_bit (gdbarch) == 64
+ ? " -mcmodel=large" : ""));
}
/* gdbarch gnu_triplet_regexp method. */
return 0;
}
+/* See arch-utils.h. */
+
+std::string
+default_get_pc_address_flags (frame_info *frame, CORE_ADDR pc)
+{
+ return "";
+}
+
+void _initialize_gdbarch_utils ();
void
-_initialize_gdbarch_utils (void)
+_initialize_gdbarch_utils ()
{
add_setshow_enum_cmd ("endian", class_support,
endian_enum, &set_endian_string,