# Architecture commands for GDB, the GNU debugger.
#
# Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007,
-# 2008, 2009 Free Software Foundation, Inc.
+# 2008, 2009, 2010 Free Software Foundation, Inc.
#
# This file is part of GDB.
#
# Make certain that the script is not running in an internationalized
# environment.
-LANG=c ; export LANG
-LC_ALL=c ; export LC_ALL
+LANG=C ; export LANG
+LC_ALL=C ; export LC_ALL
compare_new ()
# machine.
v:int:long_long_bit:::8 * sizeof (LONGEST):2*gdbarch->long_bit::0
-# The ABI default bit-size and format for "float", "double", and "long
-# double". These bit/format pairs should eventually be combined into
-# a single object. For the moment, just initialize them as a pair.
+# The ABI default bit-size and format for "half", "float", "double", and
+# "long double". These bit/format pairs should eventually be combined
+# into a single object. For the moment, just initialize them as a pair.
# Each format describes both the big and little endian layouts (if
# useful).
+v:int:half_bit:::16:2*TARGET_CHAR_BIT::0
+v:const struct floatformat **:half_format:::::floatformats_ieee_half::pformat (gdbarch->half_format)
v:int:float_bit:::8 * sizeof (float):4*TARGET_CHAR_BIT::0
v:const struct floatformat **:float_format:::::floatformats_ieee_single::pformat (gdbarch->float_format)
v:int:double_bit:::8 * sizeof (double):8*TARGET_CHAR_BIT::0
# / addr_bit will be set from it.
#
# If gdbarch_ptr_bit and gdbarch_addr_bit are different, you'll probably
-# also need to set gdbarch_pointer_to_address and gdbarch_address_to_pointer
-# as well.
+# also need to set gdbarch_dwarf2_addr_size, gdbarch_pointer_to_address and
+# gdbarch_address_to_pointer as well.
#
# ptr_bit is the size of a pointer on the target
v:int:ptr_bit:::8 * sizeof (void*):gdbarch->int_bit::0
# addr_bit is the size of a target address as represented in gdb
v:int:addr_bit:::8 * sizeof (void*):0:gdbarch_ptr_bit (gdbarch):
#
+# dwarf2_addr_size is the target address size as used in the Dwarf debug
+# info. For .debug_frame FDEs, this is supposed to be the target address
+# size from the associated CU header, and which is equivalent to the
+# DWARF2_ADDR_SIZE as defined by the target specific GCC back-end.
+# Unfortunately there is no good way to determine this value. Therefore
+# dwarf2_addr_size simply defaults to the target pointer size.
+#
+# dwarf2_addr_size is not used for .eh_frame FDEs, which are generally
+# defined using the target's pointer size so far.
+#
+# Note that dwarf2_addr_size only needs to be redefined by a target if the
+# GCC back-end defines a DWARF2_ADDR_SIZE other than the target pointer size,
+# and if Dwarf versions < 4 need to be supported.
+v:int:dwarf2_addr_size:::sizeof (void*):0:gdbarch_ptr_bit (gdbarch) / TARGET_CHAR_BIT:
+#
# One if \`char' acts like \`signed char', zero if \`unsigned char'.
v:int:char_signed:::1:-1:1
#
# (but not the value contents) filled in.
f:struct value *:value_from_register:struct type *type, int regnum, struct frame_info *frame:type, regnum, frame::default_value_from_register::0
#
-f:CORE_ADDR:pointer_to_address:struct type *type, const gdb_byte *buf:type, buf::unsigned_pointer_to_address::0
-f:void:address_to_pointer:struct type *type, gdb_byte *buf, CORE_ADDR addr:type, buf, addr::unsigned_address_to_pointer::0
+m:CORE_ADDR:pointer_to_address:struct type *type, const gdb_byte *buf:type, buf::unsigned_pointer_to_address::0
+m:void:address_to_pointer:struct type *type, gdb_byte *buf, CORE_ADDR addr:type, buf, addr::unsigned_address_to_pointer::0
M:CORE_ADDR:integer_to_address:struct type *type, const gdb_byte *buf:type, buf
# Return the return-value convention that will be used by FUNCTYPE
M:CORE_ADDR:skip_main_prologue:CORE_ADDR ip:ip
f:int:inner_than:CORE_ADDR lhs, CORE_ADDR rhs:lhs, rhs:0:0
m:const gdb_byte *:breakpoint_from_pc:CORE_ADDR *pcptr, int *lenptr:pcptr, lenptr::0:
+# Return the adjusted address and kind to use for Z0/Z1 packets.
+# KIND is usually the memory length of the breakpoint, but may have a
+# different target-specific meaning.
+m:void:remote_breakpoint_from_pc:CORE_ADDR *pcptr, int *kindptr:pcptr, kindptr:0:default_remote_breakpoint_from_pc::0
M:CORE_ADDR:adjust_breakpoint_address:CORE_ADDR bpaddr:bpaddr
m:int:memory_insert_breakpoint:struct bp_target_info *bp_tgt:bp_tgt:0:default_memory_insert_breakpoint::0
m:int:memory_remove_breakpoint:struct bp_target_info *bp_tgt:bp_tgt:0:default_memory_remove_breakpoint::0
# a step-resume breakpoint to get us past the dynamic linker.
m:CORE_ADDR:skip_solib_resolver:CORE_ADDR pc:pc::generic_skip_solib_resolver::0
# Some systems also have trampoline code for returning from shared libs.
-f:int:in_solib_return_trampoline:CORE_ADDR pc, char *name:pc, name::generic_in_solib_return_trampoline::0
+m:int:in_solib_return_trampoline:CORE_ADDR pc, char *name:pc, name::generic_in_solib_return_trampoline::0
# A target might have problems with watchpoints as soon as the stack
# frame of the current function has been destroyed. This mostly happens
# which don't suffer from that problem could just let this functionality
# untouched.
m:int:in_function_epilogue_p:CORE_ADDR addr:addr:0:generic_in_function_epilogue_p::0
-# Given a vector of command-line arguments, return a newly allocated
-# string which, when passed to the create_inferior function, will be
-# parsed (on Unix systems, by the shell) to yield the same vector.
-# This function should call error() if the argument vector is not
-# representable for this target or if this target does not support
-# command-line arguments.
-# ARGC is the number of elements in the vector.
-# ARGV is an array of strings, one per argument.
-m:char *:construct_inferior_arguments:int argc, char **argv:argc, argv::construct_inferior_arguments::0
f:void:elf_make_msymbol_special:asymbol *sym, struct minimal_symbol *msym:sym, msym::default_elf_make_msymbol_special::0
f:void:coff_make_msymbol_special:int val, struct minimal_symbol *msym:val, msym::default_coff_make_msymbol_special::0
v:int:cannot_step_breakpoint:::0:0::0
# core file into buffer READBUF with length LEN.
M:LONGEST:core_xfer_shared_libraries:gdb_byte *readbuf, ULONGEST offset, LONGEST len:readbuf, offset, len
+# How the core target converts a PTID from a core file to a string.
+M:char *:core_pid_to_str:ptid_t ptid:ptid
+
+# BFD target to use when generating a core file.
+V:const char *:gcore_bfd_target:::0:0:::gdbarch->gcore_bfd_target
+
# If the elements of C++ vtables are in-place function descriptors rather
# than normal function pointers (which may point to code or a descriptor),
# set this to one.
# here.
M:struct displaced_step_closure *:displaced_step_copy_insn:CORE_ADDR from, CORE_ADDR to, struct regcache *regs:from, to, regs
+# Return true if GDB should use hardware single-stepping to execute
+# the displaced instruction identified by CLOSURE. If false,
+# GDB will simply restart execution at the displaced instruction
+# location, and it is up to the target to ensure GDB will receive
+# control again (e.g. by placing a software breakpoint instruction
+# into the displaced instruction buffer).
+#
+# The default implementation returns false on all targets that
+# provide a gdbarch_software_single_step routine, and true otherwise.
+m:int:displaced_step_hw_singlestep:struct displaced_step_closure *closure:closure::default_displaced_step_hw_singlestep::0
+
# Fix up the state resulting from successfully single-stepping a
# displaced instruction, to give the result we would have gotten from
# stepping the instruction in its original location.
# see the comments in infrun.c.
m:CORE_ADDR:displaced_step_location:void:::NULL::(! gdbarch->displaced_step_location) != (! gdbarch->displaced_step_copy_insn)
+# Relocate an instruction to execute at a different address. OLDLOC
+# is the address in the inferior memory where the instruction to
+# relocate is currently at. On input, TO points to the destination
+# where we want the instruction to be copied (and possibly adjusted)
+# to. On output, it points to one past the end of the resulting
+# instruction(s). The effect of executing the instruction at TO shall
+# be the same as if executing it at FROM. For example, call
+# instructions that implicitly push the return address on the stack
+# should be adjusted to return to the instruction after OLDLOC;
+# relative branches, and other PC-relative instructions need the
+# offset adjusted; etc.
+M:void:relocate_instruction:CORE_ADDR *to, CORE_ADDR from:to, from::NULL
+
# Refresh overlay mapped state for section OSECT.
F:void:overlay_update:struct obj_section *osect:osect
# Set if the address in N_SO or N_FUN stabs may be zero.
v:int:sofun_address_maybe_missing:::0:0::0
+# Parse the instruction at ADDR storing in the record execution log
+# the registers REGCACHE and memory ranges that will be affected when
+# the instruction executes, along with their current values.
+# Return -1 if something goes wrong, 0 otherwise.
+M:int:process_record:struct regcache *regcache, CORE_ADDR addr:regcache, addr
+
+# Save process state after a signal.
+# Return -1 if something goes wrong, 0 otherwise.
+M:int:process_record_signal:struct regcache *regcache, enum target_signal signal:regcache, signal
+
# Signal translation: translate inferior's signal (host's) number into
# GDB's representation.
m:enum target_signal:target_signal_from_host:int signo:signo::default_target_signal_from_host::0
# signal number.
m:int:target_signal_to_host:enum target_signal ts:ts::default_target_signal_to_host::0
+# Extra signal info inspection.
+#
+# Return a type suitable to inspect extra signal information.
+M:struct type *:get_siginfo_type:void:
+
# Record architecture-specific information from the symbol table.
M:void:record_special_symbol:struct objfile *objfile, asymbol *sym:objfile, sym
+# Function for the 'catch syscall' feature.
+
+# Get architecture-specific system calls information from registers.
+M:LONGEST:get_syscall_number:ptid_t ptid:ptid
+
# True if the list of shared libraries is one and only for all
# processes, as opposed to a list of shared libraries per inferior.
-# When this property is true, GDB assumes that since shared libraries
-# are shared across processes, so is all code. Hence, GDB further
-# assumes an inserted breakpoint location is visible to all processes.
+# This usually means that all processes, although may or may not share
+# an address space, will see the same set of symbols at the same
+# addresses.
v:int:has_global_solist:::0:0::0
+
+# On some targets, even though each inferior has its own private
+# address space, the debug interface takes care of making breakpoints
+# visible to all address spaces automatically. For such cases,
+# this property should be set to true.
+v:int:has_global_breakpoints:::0:0::0
+
+# True if inferiors share an address space (e.g., uClinux).
+m:int:has_shared_address_space:void:::default_has_shared_address_space::0
+
+# True if a fast tracepoint can be set at an address.
+m:int:fast_tracepoint_valid_at:CORE_ADDR addr, int *isize, char **msg:addr, isize, msg::default_fast_tracepoint_valid_at::0
+
+# Return the "auto" target charset.
+f:const char *:auto_charset:void::default_auto_charset:default_auto_charset::0
+# Return the "auto" target wide charset.
+f:const char *:auto_wide_charset:void::default_auto_wide_charset:default_auto_wide_charset::0
+
+# If non-empty, this is a file extension that will be opened in place
+# of the file extension reported by the shared library list.
+#
+# This is most useful for toolchains that use a post-linker tool,
+# where the names of the files run on the target differ in extension
+# compared to the names of the files GDB should load for debug info.
+v:const char *:solib_symbols_extension:::::::pstring (gdbarch->solib_symbols_extension)
+
+# If true, the target OS has DOS-based file system semantics. That
+# is, absolute paths include a drive name, and the backslash is
+# considered a directory separator.
+v:int:has_dos_based_file_system:::0:0::0
EOF
}
/* Dynamic architecture support for GDB, the GNU debugger.
- Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007
- Free Software Foundation, Inc.
+ Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
+ 2007, 2008, 2009 Free Software Foundation, Inc.
This file is part of GDB.
struct target_desc;
struct displaced_step_closure;
struct core_regset_section;
-
-extern struct gdbarch *current_gdbarch;
+struct syscall;
+
+/* The architecture associated with the connection to the target.
+
+ The architecture vector provides some information that is really
+ a property of the target: The layout of certain packets, for instance;
+ or the solib_ops vector. Etc. To differentiate architecture accesses
+ to per-target properties from per-thread/per-frame/per-objfile properties,
+ accesses to per-target properties should be made through target_gdbarch.
+
+ Eventually, when support for multiple targets is implemented in
+ GDB, this global should be made target-specific. */
extern struct gdbarch *target_gdbarch;
EOF
# close it off
cat <<EOF
+/* Definition for an unknown syscall, used basically in error-cases. */
+#define UNKNOWN_SYSCALL (-1)
+
extern struct gdbarch_tdep *gdbarch_tdep (struct gdbarch *gdbarch);
of all the previously created architures for this architecture
family. The (possibly NULL) ARCHES->gdbarch can used to access
values from the previously selected architecture for this
- architecture family. The global \`\`current_gdbarch'' shall not be
- used.
+ architecture family.
The INIT function shall return any of: NULL - indicating that it
doesn't recognize the selected architecture; an existing \`\`struct
set, and then finished using gdbarch_info_fill.
Returns the corresponding architecture, or NULL if no matching
- architecture was found. "current_gdbarch" is not updated. */
+ architecture was found. */
extern struct gdbarch *gdbarch_find_by_info (struct gdbarch_info info);
-/* Helper function. Set the global "current_gdbarch" to "gdbarch".
+/* Helper function. Set the global "target_gdbarch" to "gdbarch".
FIXME: kettenis/20031124: Of the functions that follow, only
gdbarch_from_bfd is supposed to survive. The others will
multi-arch. However, for now we're still stuck with the concept of
a single active architecture. */
-extern void deprecated_current_gdbarch_select_hack (struct gdbarch *gdbarch);
+extern void deprecated_target_gdbarch_select_hack (struct gdbarch *gdbarch);
/* Register per-architecture data-pointer.
return format[0]->name;
}
+static const char *
+pstring (const char *string)
+{
+ if (string == NULL)
+ return "(null)";
+ return string;
+}
+
EOF
# gdbarch open the gdbarch object
/* startup_gdbarch() */
};
-struct gdbarch *current_gdbarch = &startup_gdbarch;
struct gdbarch *target_gdbarch = &startup_gdbarch;
EOF
gdbarch_obstack_zalloc (struct gdbarch *arch, long size)
{
void *data = obstack_alloc (arch->obstack, size);
+
memset (data, 0, size);
return data;
}
gdbarch_free (struct gdbarch *arch)
{
struct obstack *obstack;
+
gdb_assert (arch != NULL);
gdb_assert (!arch->initialized_p);
obstack = arch->obstack;
{
struct ui_file *log;
struct cleanup *cleanups;
- long dummy;
+ long length;
char *buf;
+
log = mem_fileopen ();
cleanups = make_cleanup_ui_file_delete (log);
/* fundamental */
fi
done
cat <<EOF
- buf = ui_file_xstrdup (log, &dummy);
+ buf = ui_file_xstrdup (log, &length);
make_cleanup (xfree, buf);
- if (strlen (buf) > 0)
+ if (length > 0)
internal_error (__FILE__, __LINE__,
_("verify_gdbarch: the following are invalid ...%s"),
buf);
gdbarch_dump (struct gdbarch *gdbarch, struct ui_file *file)
{
const char *gdb_nm_file = "<not-defined>";
+
#if defined (GDB_NM_FILE)
gdb_nm_file = GDB_NM_FILE;
#endif
gdbarch_data_post_init_ftype *post_init)
{
struct gdbarch_data_registration **curr;
- /* Append the new registraration. */
+
+ /* Append the new registration. */
for (curr = &gdbarch_data_registry.registrations;
(*curr) != NULL;
curr = &(*curr)->next);
{
/* 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_registration *rego;
+
for (rego = gdbarch_registry;
rego != NULL;
rego = rego->next)
{
struct gdbarch_registration **curr;
const struct bfd_arch_info *bfd_arch_info;
+
/* Check that BFD recognizes this architecture */
bfd_arch_info = bfd_lookup_arch (bfd_architecture, 0);
if (bfd_arch_info == NULL)
/* Find an architecture that matches the specified INFO. Create a new
- architecture if needed. Return that new architecture. Assumes
- that there is no current architecture. */
+ architecture if needed. Return that new architecture. */
-static struct gdbarch *
-find_arch_by_info (struct gdbarch_info info)
+struct gdbarch *
+gdbarch_find_by_info (struct gdbarch_info info)
{
struct gdbarch *new_gdbarch;
struct gdbarch_registration *rego;
- /* The existing architecture has been swapped out - all this code
- works from a clean slate. */
- gdb_assert (current_gdbarch == NULL);
-
/* Fill in missing parts of the INFO struct using a number of
sources: "set ..."; INFOabfd supplied; and the global
defaults. */
if (gdbarch_debug)
{
fprintf_unfiltered (gdb_stdlog,
- "find_arch_by_info: info.bfd_arch_info %s\n",
+ "gdbarch_find_by_info: info.bfd_arch_info %s\n",
(info.bfd_arch_info != NULL
? info.bfd_arch_info->printable_name
: "(null)"));
fprintf_unfiltered (gdb_stdlog,
- "find_arch_by_info: info.byte_order %d (%s)\n",
+ "gdbarch_find_by_info: info.byte_order %d (%s)\n",
info.byte_order,
(info.byte_order == BFD_ENDIAN_BIG ? "big"
: info.byte_order == BFD_ENDIAN_LITTLE ? "little"
: "default"));
fprintf_unfiltered (gdb_stdlog,
- "find_arch_by_info: info.osabi %d (%s)\n",
+ "gdbarch_find_by_info: info.osabi %d (%s)\n",
info.osabi, gdbarch_osabi_name (info.osabi));
fprintf_unfiltered (gdb_stdlog,
- "find_arch_by_info: info.abfd %s\n",
+ "gdbarch_find_by_info: info.abfd %s\n",
host_address_to_string (info.abfd));
fprintf_unfiltered (gdb_stdlog,
- "find_arch_by_info: info.tdep_info %s\n",
+ "gdbarch_find_by_info: info.tdep_info %s\n",
host_address_to_string (info.tdep_info));
}
if (rego == NULL)
{
if (gdbarch_debug)
- fprintf_unfiltered (gdb_stdlog, "find_arch_by_info: "
+ fprintf_unfiltered (gdb_stdlog, "gdbarch_find_by_info: "
"No matching architecture\n");
return 0;
}
if (new_gdbarch == NULL)
{
if (gdbarch_debug)
- fprintf_unfiltered (gdb_stdlog, "find_arch_by_info: "
+ fprintf_unfiltered (gdb_stdlog, "gdbarch_find_by_info: "
"Target rejected architecture\n");
return NULL;
}
struct gdbarch_list **list;
struct gdbarch_list *this;
if (gdbarch_debug)
- fprintf_unfiltered (gdb_stdlog, "find_arch_by_info: "
+ fprintf_unfiltered (gdb_stdlog, "gdbarch_find_by_info: "
"Previous architecture %s (%s) selected\n",
host_address_to_string (new_gdbarch),
new_gdbarch->bfd_arch_info->printable_name);
/* It's a new architecture. */
if (gdbarch_debug)
- fprintf_unfiltered (gdb_stdlog, "find_arch_by_info: "
+ fprintf_unfiltered (gdb_stdlog, "gdbarch_find_by_info: "
"New architecture %s (%s) selected\n",
host_address_to_string (new_gdbarch),
new_gdbarch->bfd_arch_info->printable_name);
return new_gdbarch;
}
-struct gdbarch *
-gdbarch_find_by_info (struct gdbarch_info info)
-{
- struct gdbarch *new_gdbarch;
-
- /* Save the previously selected architecture, setting the global to
- NULL. This stops things like gdbarch->init() trying to use the
- previous architecture's configuration. The previous architecture
- may not even be of the same architecture family. The most recent
- architecture of the same family is found at the head of the
- rego->arches list. */
- struct gdbarch *old_gdbarch = current_gdbarch;
- current_gdbarch = NULL;
-
- /* Find the specified architecture. */
- new_gdbarch = find_arch_by_info (info);
-
- /* Restore the existing architecture. */
- gdb_assert (current_gdbarch == NULL);
- current_gdbarch = old_gdbarch;
-
- return new_gdbarch;
-}
-
/* Make the specified architecture current. */
void
-deprecated_current_gdbarch_select_hack (struct gdbarch *new_gdbarch)
+deprecated_target_gdbarch_select_hack (struct gdbarch *new_gdbarch)
{
gdb_assert (new_gdbarch != NULL);
- gdb_assert (current_gdbarch != NULL);
gdb_assert (new_gdbarch->initialized_p);
- current_gdbarch = new_gdbarch;
target_gdbarch = new_gdbarch;
observer_notify_architecture_changed (new_gdbarch);
registers_changed ();
void
_initialize_gdbarch (void)
{
- struct cmd_list_element *c;
-
add_setshow_zinteger_cmd ("arch", class_maintenance, &gdbarch_debug, _("\\
Set architecture debugging."), _("\\
Show architecture debugging."), _("\\
projects / binutils.git / blobdiff