Make use of the default gdbarch methods for gdbarch_dummy_id,
gdbarch_unwind_pc, and gdbarch_unwind_sp where possible.
I have not tested this change but, by inspecting the code, I believe
the default methods are equivalent to the code being deleted. The
only difference is that the old ARC specific methods had additional
debugging, however, this was discussed on the mailing list[1] and it
was agreed these methods could be removed.
[1] https://sourceware.org/ml/gdb-patches/2018-12/msg00386.html
gdb/ChangeLog:
* gdb/arc-tdep.c (arc_dummy_id): Delete.
(arc_unwind_pc): Delete.
(arc_unwind_sp): Delete.
(arc_gdbarch_init): Don't register deleted functions with gdbarch.
This commit restructures the relationship between the type_align
function and the gdbarch_type_align method.
The problem being addressed with this commit is this; previously the
type_align function was structured so that for "basic" types (int,
float, etc) the gdbarch_type_align hook was called, which for
"compound" types (arrays, structs, etc) the common type_align code has
a fixed method for how to extract a "basic" type and would then call
itself on that "basic" type.
The problem is that if an architecture wants to modify the alignment
rules for a "compound" type then this is not currently possible.
In the revised structure, all types pass through the
gdbarch_type_align method. If this method returns 0 then this
indicates that the architecture has no special rules for this type,
and GDB should apply the default rules for alignment. However, the
architecture is free to provide an alignment for any type, both
"basic" and "compound".
After this commit the default alignment rules now all live in the
type_align function, the default_type_align only ever returns 0,
meaning apply the default rules.
I've updated the 3 targets (arc, i386, and nios2) that already
override the gdbarch_type_align method to fit the new scheme.
Tested on X86-64/GNU Linux with no regressions.
gdb/ChangeLog:
* arc-tdep.c (arc_type_align): Provide alignment for basic types,
return 0 for other types.
* arch-utils.c (default_type_align): Always return 0.
* gdbarch.h: Regenerate.
* gdbarch.sh (type_align): Extend comment.
* gdbtypes.c (type_align): Add additional comments, always call
gdbarch_type_align before applying the default rules.
* i386-tdep.c (i386_type_align): Return 0 as the default rule,
generic code will then apply a suitable default.
* nios2-tdep.c (nios2_type_align): Provide alignment for basic
types, return 0 for other types.
This commit applies all changes made after running the gdb/copyright.py
script.
Note that one file was flagged by the script, due to an invalid
copyright header
(gdb/unittests/basic_string_view/element_access/char/empty.cc).
As the file was copied from GCC's libstdc++-v3 testsuite, this commit
leaves this file untouched for the time being; a patch to fix the header
was sent to gcc-patches first.
gdb/ChangeLog:
Update copyright year range in all GDB files.
PR build/17077 points out that when --with-system-readline is given,
gdb will still pick up the in-tree readline headers. Normally this is
not a big problem, because readline is very stable and so the ABI does
not change much; but it is clearly a bug to do this, and could bite at
some point.
The basic problem is that OPCODES_CFLAGS uses -I$(OPCODES_SRC)/.. so
that #include "opcodes/..." works. However, this also makes it so the
This patch fixes the problem in a mildly hacky way: remove the
offending -I option, and change gdb to use #include "../opcodes/..."
instead. This continues to make it clear where the header comes from,
without allowing incorrect behavior.
Tested by rebuilding and then looking at the *.Po files.
gdb/ChangeLog
2018-10-06 Tom Tromey <tom@tromey.com>
PR build/17077:
* Makefile.in (OPCODES_CFLAGS): Remove "-I$(OPCODES_SRC)/..".
* arc-tdep.c, frv-tdep.c, lm32-tdep.c, mep-tdep.c,
microblaze-tdep.c, or1k-tdep.h: Use ../opcodes, not opcodes, in
#include.
This removes the long_long_align_bit gdbarch attribute in favor of
type_align. This uncovered two possible issues.
First, arc-tdep.c claimed that long long alignment was 32 bits, but as
discussed on the list, ARC has a maximum alignment of 32 bits, so I've
added an arc_type_align function to account for this.
Second, jit.c, the sole user of long_long_align_bit, was confusing
"long long" with uint64_t. The relevant structure is defined in the
JIT API part of the manual as:
struct jit_code_entry
{
struct jit_code_entry *next_entry;
struct jit_code_entry *prev_entry;
const char *symfile_addr;
uint64_t symfile_size;
};
I've changed this code to use uint64_t.
2018-04-30 Tom Tromey <tom@tromey.com>
* jit.c (jit_read_code_entry): Use type_align.
* i386-tdep.c (i386_gdbarch_init): Don't call
set_gdbarch_long_long_align_bit.
* gdbarch.sh: Remove long_long_align_bit.
* gdbarch.c, gdbarch.h: Rebuild.
* arc-tdep.c (arc_type_align): New function.
(arc_gdbarch_init): Use arc_type_align. Don't call
set_gdbarch_long_long_align_bit.
This patch is an initial C++-ification of pv_area, from
prologue-value. It turns pv_area into a class with a constructor and
destructor; renames the data members; and changes various functions to
be member functions. This allows the removal of
make_cleanup_free_pv_area.
gdb/ChangeLog
2017-10-12 Tom Tromey <tom@tromey.com>
* s390-linux-tdep.c (s390_store, s390_load)
(s390_check_for_saved, s390_analyze_prologue): Update.
* rx-tdep.c (check_for_saved, rx_analyze_prologue): Update.
* rl78-tdep.c (rl78_analyze_prologue, check_for_saved): Update.
* prologue-value.h (class pv_area): Move from prologue-value.c.
Change names of members. Add constructor, destructor, member
functions.
(make_pv_area, free_pv_area, make_cleanup_free_pv_area)
(pv_area_store, pv_area_fetch, pv_area_store_would_trash)
(pv_area_fetch, pv_area_scan): Don't declare.
* prologue-value.c (struct pv_area::area_entry): Now member of
pv_area.
(struct pv_area): Move to prologue-value.h.
(pv_area::pv_area): Rename from make_pv_area.
(pv_area::~pv_area): Rename from free_pv_area.
(do_free_pv_area_cleanup, make_cleanup_free_pv_area): Remove.
(clear_entries, find_entry, overlaps, store_would_trash, store)
(fetch, find_reg, scan): Now member of pv_area.
Remove "area" argument. Update.
* msp430-tdep.c (check_for_saved, msp430_analyze_prologue):
Update.
* mn10300-tdep.c (push_reg, check_for_saved)
(mn10300_analyze_prologue): Update.
* mep-tdep.c (is_arg_spill, check_for_saved)
(mep_analyze_prologue): Update.
* m32c-tdep.c (m32c_pv_push, m32c_srcdest_fetch)
(m32c_srcdest_store, m32c_pv_enter, m32c_is_arg_spill)
(m32c_is_struct_return, m32c_analyze_prologue): Update.
* arm-tdep.c (thumb_analyze_prologue, arm_analyze_prologue):
Update.
* arc-tdep.c (arc_is_in_prologue, arc_analyze_prologue): Update.
* aarch64-tdep.c (aarch64_analyze_prologue): Update.
There was a problem with generation of the disassembler options for ARC in GDB,
because a BFD architecture name was used as a CPU name, but they have different
meaning even if some architectures have same name as respective CPUs. Target
description specifies a BFD architecture, which is different from ARC CPU, as
accepted by the disassembler (and most other ARC tools), because CPU values are
much more fine grained - there can be multiple CPU values per single BFD
architecture. As a result this code should translate architecture to some CPU
value. Since there is no info on exact CPU configuration, it is best to use
the most feature-rich CPU, so that the disassembler will recognize all
instructions available to the specified architecture.
gdb/ChangeLog
yyyy-mm-dd Anton Kolesov <Anton.Kolesov@synopsys.com>
* arc-tdep.c (arc_gdbarch_init): Pass proper cpu value to disassembler.
* arc-tdep.h (arc_arch_is_em): New function.
(arc_arch_is_hs): Likewise.
gdb/testsuite/ChangeLog
yyyy-mm-dd Anton Kolesov <Anton.Kolesov@synopsys.com>
* gdb.arch/arc-tdesc-cpu.exp: New file.
* gdb.arch/arc-tdesc-cpu.xml: Likewise.
Enforce CPU model for disassembler via its options, if it was specified in XML
target description, otherwise use default method of determining CPU implemented
in disassembler - scanning ELF private header. The latter requires
disassemble_info->section to be properly initialized. To make sure that
info->section is set in all cases this patch partially reverts [1] for ARC: it
reinstates arc_delayed_print_insn as a "print_insn" function for ARC, but
now this function only sets disassemble_info->section and then calls
default_print_insn to do the rest of the job.
Support for CPU in disassembler options for ARC has been added in [2].
[1] https://sourceware.org/git/?p=binutils-gdb.git;a=commit;h=39503f82427e22ed8e04d986ccdc8562091ec62e
[2] https://sourceware.org/git/?p=binutils-gdb.git;a=commit;h=10045478d984f9924cb945423388ba25b7dd3ffe
gdb/ChangeLog:
yyyy-mm-dd Anton Kolesov <anton.kolesov@synopsys.com>
* arc-tdep.c (arc_disassembler_options): New variable.
(arc_gdbarch_init): Set and use it. Use arc_delayed_print_insn instead
of default_print_insn.
(arc_delayed_print_insn): Set info->section when needed,
use default_print_insn to retrieve a disassembler.
Add a prologue analysis that recognizes all instructions that may happen in
compiler-generated prologue, including various stores, core register moves,
subtraction and ENTER_S instruction that does a lot of prologue actions through
microcode.
Testcases cover various prologue scenarios, including instructions that are
spread across multiple 16-bit encodings (for example there are 7 encodings of
store instruction).
gdb/ChangeLog:
yyyy-mm-dd Anton Kolesov <anton.kolesov@synopsys.com>
* arc-tdep.c (arc_frame_cache): Add support for prologue analysis.
(arc_skip_prologue): Likewise.
(arc_make_frame_cache): Likewise.
(arc_pv_get_operand): New function.
(arc_is_in_prologue): Likewise.
(arc_analyze_prologue): Likewise.
(arc_print_frame_cache): Likewise.
(MAX_PROLOGUE_LENGTH): New constant.
gdb/doc/ChangeLog:
yyyy-mm-dd Anton Kolesov <anton.kolesov@synopsys.com>
* gdb.texinfo (Synopsys ARC): Document "set debug arc 2".
gdb/testsuite/ChangeLog:
yyyy-mm-dd Anton Kolesov <anton.kolesov@synopsys.com>
* gdb.arch/arc-analyze-prologue.S: New file.
* gdb.arch/arc-analyze-prologue.exp: Likewise.
Add disassembler helper for GDB, that uses opcodes structure arc_instruction
and adds convenience functions to handle instruction operands. This interface
solves at least those problems with arc_instruction:
* Some instructions, like "push_s", have implicit operands which are not
directly present in arc_instruction.
* Operands of particular meaning, like branch/jump targets, have various
locations and meaning depending on type of branch/target.
* Access to operand value is abstracted into a separate function, so callee
code shouldn't bother if operand value is an immediate value or in a
register.
Testcases included in this commit are fairly limited - they test exclusively
branch instructions, something that will be used in software single stepping.
Most of the other parts of this disassembler helper are tested during prologue
analysis testing.
gdb/ChangeLog:
yyyy-mm-dd Anton Kolesov <anton.kolesov@synopsys.com>
* configure.tgt: Add arc-insn.o.
* arc-tdep.c (arc_delayed_print_insn): Make non-static.
(dump_arc_instruction_command): New function.
(arc_fprintf_disasm): Likewise.
(arc_disassemble_info): Likewise.
(arc_insn_get_operand_value): Likewise.
(arc_insn_get_operand_value_signed): Likewise.
(arc_insn_get_memory_base_reg): Likewise.
(arc_insn_get_memory_offset): Likewise.
(arc_insn_get_branch_target): Likewise.
(arc_insn_dump): Likewise.
(arc_insn_get_linear_next_pc): Likewise.
* arc-tdep.h (arc_delayed_print_insn): Add function declaration.
(arc_disassemble_info): Likewise.
(arc_insn_get_branch_target): Likewise.
(arc_insn_get_linear_next_pc): Likewise.
* NEWS: Mention new "maint print arc arc-instruction".
gdb/doc/ChangeLog:
yyyy-mm-dd Anton Kolesov <anton.kolesov@synopsys.com>
* gdb.texinfo (Synopsys ARC): Add "maint print arc arc-instruction".
gdb/testsuite/ChangeLog:
yyyy-mm-dd Anton Kolesov <anton.kolesov@synopsys.com>
* gdb.arch/arc-decode-insn.S: New file.
* gdb.arch/arc-decode-insn.exp: Likewise.
Add an "arc" sublist to "maintenance print" command list. The list is empty
for now, its purpose is to contain commands that print internal state of some
ARC-specific structures.
gdb/ChangeLog:
yyyy-mm-dd Anton Kolesov <anton.kolesov@synopsys.com>
* arc-tdep (maintenance_print_arc_list): New variable.
(maintenance_print_arc_command): New function.
Add ARC_LIMM_REGNUM to arc_regnum enumeration and assign a number 62 to it.
This ensures that for core registers internal register numbers in this enum are
the same as architectural numbers. This allows to use internal register
numbers in the contexts where architectural number is implied, for example when
disassembling instruction during prologue analysis.
gdb/ChangeLog:
yyyy-mm-dd Anton Kolesov <anton.kolesov@synopsys.com>
* arc-tdep.c (core_v2_register_names, core_arcompact_register_names)
Add "limm" and "reserved".
(arc_cannot_fetch_register, arc_cannot_store_register): Add
ARC_RESERVED_REGNUM and ARC_LIMM_REGNUM.
* arc-tdep.h (arc_regnum): Likewise.
This applies the second part of GDB's End of Year Procedure, which
updates the copyright year range in all of GDB's files.
gdb/ChangeLog:
Update copyright year range in all GDB files.
Both of them are used in conversion. We can remove them since the
conversion is done.
There are many architectures only have one breakpoint instruction,
so their gdbarch methods breakpoint_kind_from_pc and
sw_breakpoint_from_kind look very similar. Instead of macro, we
use template "template <size_t, const gdb_byte *> struct bp_manipulation"
for these architectures. In order to use template, I also change
breakpoint instruction of type "static const gdb_byte[]" to
"constexpr gdb_byte[]", and rename them to ARCH_break_insn.
gdb:
2016-11-03 Yao Qi <yao.qi@linaro.org>
Pedro Alves <palves@redhat.com>
* aarch64-tdep.c (aarch64_default_breakpoint): Change it to
constexpr. Don't use GDBARCH_BREAKPOINT_MANIPULATION.
(aarch64_gdbarch_init): Don't use
SET_GDBARCH_BREAKPOINT_MANIPULATION.
* alpha-tdep.c (break_insn): Rename to alpha_break_insn.
Don't use GDBARCH_BREAKPOINT_MANIPULATION.
(alpha_gdbarch_init): Don't use
SET_GDBARCH_BREAKPOINT_MANIPULATION.
* arc-tdep.c (arc_gdbarch_init): Don't use
SET_GDBARCH_BREAKPOINT_MANIPULATION.
* arch-utils.h (GDBARCH_BREAKPOINT_MANIPULATION): Remove.
(struct bp_manipulation): New.
(SET_GDBARCH_BREAKPOINT_MANIPULATION): Remove.
(struct bp_manipulation_endian): New.
(BP_MANIPULATION): New.
(BP_MANIPULATION_ENDIAN): New.
* arm-tdep.c (arm_gdbarch_init): Don't use
SET_GDBARCH_BREAKPOINT_MANIPULATION.
* avr-tdep.c (avr_break_insn): Change it constexpr.
(avr_gdbarch_init): Don't use
SET_GDBARCH_BREAKPOINT_MANIPULATION.
* bfin-tdep.c (bfin_gdbarch_init): Likewise.
* cris-tdep.c (cris_gdbarch_init): Likewise.
* frv-tdep.c (breakpoint): Rename it to frv_break_insn, and
change its type to constexpr. Don't use
GDBARCH_BREAKPOINT_MANIPULATION.
(frv_gdbarch_init): Don't use
SET_GDBARCH_BREAKPOINT_MANIPULATION.
* ft32-tdep.c (breakpoint): Rename it to ft32_break_insn and
change its type to constexpr. Don't use
GDBARCH_BREAKPOINT_MANIPULATION.
(ft32_gdbarch_init): Don't use
SET_GDBARCH_BREAKPOINT_MANIPULATION.
* h8300-tdep.c (breakpoint): Rename it to h8300_break_insn.
Don't use GDBARCH_BREAKPOINT_MANIPULATION.
(h8300_gdbarch_init): Don't use
SET_GDBARCH_BREAKPOINT_MANIPULATION.
* hppa-tdep.c (breakpoint): Rename it to h8300_break_insn.
Don't use GDBARCH_BREAKPOINT_MANIPULATION.
(hppa_gdbarch_init): Don't use
SET_GDBARCH_BREAKPOINT_MANIPULATION.
* i386-tdep.c (break_insn): Rename it to i386_break_insn.
Don't use GDBARCH_BREAKPOINT_MANIPULATION.
(i386_gdbarch_init): Don't use
SET_GDBARCH_BREAKPOINT_MANIPULATION.
* iq2000-tdep.c (iq2000_gdbarch_init): Don't use
SET_GDBARCH_BREAKPOINT_MANIPULATION.
* lm32-tdep.c (breakpoint): Rename it to lm32_break_insn and
change its type to constexpr. Don't use
GDBARCH_BREAKPOINT_MANIPULATION.
(lm32_gdbarch_init): Don't use
SET_GDBARCH_BREAKPOINT_MANIPULATION.
* m32c-tdep.c (break_insn): Rename it to m32c_break_insn and change
its type to constexpr. Don't use GDBARCH_BREAKPOINT_MANIPULATION.
(m32c_gdbarch_init): Don't use
SET_GDBARCH_BREAKPOINT_MANIPULATION.
* m32r-tdep.c (m32r_gdbarch_init): Likewise.
* m68hc11-tdep.c (breakpoint): Rename it to m68hc11_break_insn and
change its type to constexpr. Don't use GDBARCH_BREAKPOINT_MANIPULATION.
(m68hc11_gdbarch_init): Don't use SET_GDBARCH_BREAKPOINT_MANIPULATION.
* m68k-tdep.c (break_insn): Rename it to m68k_break_insn and change
its type to constexpr. Don't use GDBARCH_BREAKPOINT_MANIPULATION.
(m68k_gdbarch_init): Don't use
SET_GDBARCH_BREAKPOINT_MANIPULATION.
* m88k-tdep.c (break_insn): Rename it to m88k_break_insn and change
its type to constexpr. Don't use GDBARCH_BREAKPOINT_MANIPULATION.
(m88k_gdbarch_init): Don't use
SET_GDBARCH_BREAKPOINT_MANIPULATION.
* mep-tdep.c (breakpoint): Rename it to mep_break_insn and change
its type to constexpr. Don't use GDBARCH_BREAKPOINT_MANIPULATION.
(mep_gdbarch_init): Don't use
SET_GDBARCH_BREAKPOINT_MANIPULATION.
* microblaze-tdep.c (break_insn): Rename it to
microblaze_break_insn and change its type to constexpr. Don't use
GDBARCH_BREAKPOINT_MANIPULATION.
(microblaze_gdbarch_init): Don't use
SET_GDBARCH_BREAKPOINT_MANIPULATION.
* mips-tdep.c (mips_gdbarch_init): Likewise.
* mn10300-tdep.c (breakpoint): Rename it to mn10300_break_insn and
change its type to constexpr. Don't use
GDBARCH_BREAKPOINT_MANIPULATION.
(mn10300_gdbarch_init): Don't use
SET_GDBARCH_BREAKPOINT_MANIPULATION.
* moxie-tdep.c (breakpoint): Rename it to moxie_break_insn and
change its type to constexpr. Don't use
GDBARCH_BREAKPOINT_MANIPULATION.
(moxie_gdbarch_init): Don't use
SET_GDBARCH_BREAKPOINT_MANIPULATION.
* msp430-tdep.c (breakpoint): Rename it to msp430_break_insn
and change its type to constexpr. Don't use
GDBARCH_BREAKPOINT_MANIPULATION.
(msp430_gdbarch_init): Don't use
SET_GDBARCH_BREAKPOINT_MANIPULATION.
* mt-tdep.c (mt_gdbarch_init): Likewise.
* nds32-tdep.c (break_insn): Rename it to nds32_break_insn
and change its type to constexpr. Don't use
GDBARCH_BREAKPOINT_MANIPULATION.
(nds32_gdbarch_init): Don't use
SET_GDBARCH_BREAKPOINT_MANIPULATION.
* nios2-tdep.c (nios2_gdbarch_init): Likewise.
* rl78-tdep.c (breakpoint): Rename it to rl78_break_ins
and change its type to rl78_break_insn. Don't use
GDBARCH_BREAKPOINT_MANIPULATION.
(rl78_gdbarch_init): Don't use
SET_GDBARCH_BREAKPOINT_MANIPULATION.
* rs6000-tdep.c (big_breakpoint): Change its type to
constexpr.
(little_breakpoint): Likewise.
Don't use GDBARCH_BREAKPOINT_MANIPULATION_ENDIAN.
(rs6000_gdbarch_init): Don't use
SET_GDBARCH_BREAKPOINT_MANIPULATION.
* rx-tdep.c (breakpoint): Rename it to rx_break_insn and
change its type to constexpr. Don't use
GDBARCH_BREAKPOINT_MANIPULATION.
(rx_gdbarch_init): Don't use
SET_GDBARCH_BREAKPOINT_MANIPULATION.
* s390-linux-tdep.c (breakpoint): Rename it to s390_break_insn
and change its type to constexpr. Don't use
GDBARCH_BREAKPOINT_MANIPULATION
(s390_gdbarch_init): Don't use
SET_GDBARCH_BREAKPOINT_MANIPULATION.
* score-tdep.c (score_gdbarch_init): Likewise.
* sh-tdep.c (sh_gdbarch_init): Likewise.
* sh64-tdep.c (sh64_gdbarch_init): Likewise.
* sparc-tdep.c (break_insn): Rename it to sparc_break_insn
and change its type to constexpr. Don't use
GDBARCH_BREAKPOINT_MANIPULATION.
(sparc32_gdbarch_init): Don't use
SET_GDBARCH_BREAKPOINT_MANIPULATION.
* spu-tdep.c (breakpoint): Rename it to spu_break_insn and change
its type to constexpr. Don't use
GDBARCH_BREAKPOINT_MANIPULATION.
(spu_gdbarch_init): Don't use
SET_GDBARCH_BREAKPOINT_MANIPULATION.
* tic6x-tdep.c (tic6x_gdbarch_init): Likewise.
* tilegx-tdep.c (breakpoint): Rename it to tilegx_break_insn
and change its type to constexpr. Don't use
GDBARCH_BREAKPOINT_MANIPULATION.
(tilegx_gdbarch_init): Don't use
SET_GDBARCH_BREAKPOINT_MANIPULATION.
* v850-tdep.c (v850_gdbarch_init): Likewise.
* vax-tdep.c (break_insn): Rename it to vax_break_insn and
change its type to constexpr.
Don't use GDBARCH_BREAKPOINT_MANIPULATION.
(vax_gdbarch_init): Don't use
SET_GDBARCH_BREAKPOINT_MANIPULATION.
* xstormy16-tdep.c (breakpoint): Rename it to
xstormy16_break_insn and change its type to constexpr.
Don't use GDBARCH_BREAKPOINT_MANIPULATION.
(xstormy16_gdbarch_init): Don't use
SET_GDBARCH_BREAKPOINT_MANIPULATION.
* xtensa-tdep.c (xtensa_gdbarch_init): Likewise.
Standard get_longjmp_target implementation, similar to what is in arm-tdep.c.
Actual value of jb_pc should be set in init_osabi methods of particular OS/ABI
implementations.
gdb/ChangeLog:
* arc-tdep.h (struct gdbarch_tdep) <jb_pc>: New field.
* arc-tdep.c (arc_get_longjmp_target): New function.
(arc_gdbarch_init): Set get_longjmp_target if jb_pc is non-negative.
(arc_dump_tdep): Print jb_pc.
The logging message is called too often - once for each register when it's
value has to be evaluated. This floods the screen for commands like "info
register all", but doesn't give really any help at debugging GDB issues.
Between increasing the debug level of this message and removing it altogether I
think that removing it is preferable.
gdb/ChangeLog:
arc-tdep.c (arc_frame_prev_register): Remove annoying log message.
Replace printf ("%p") with printf ("%s", host_address_to_string ()). Printing
host addrss might make sense here because pointers can be null and this would
affect how function behaves.
This particular warning is printed only when option -Wari is passed to
contrib/ari/gdb_ari.sh
gdb/ChangeLog:
* arc-tdep.c: Fix ARI warning for printf(%p).
ARC is a family of licensable processors developed by Synopsys.
This is an initial patch that doesn't yet support some of the features, that
are already available in Synopsys' fork of GDB, namely:
* longjmp support
* signal frame handling
* prologue analysis
* Linux targets support
* native Linux support
ARC cores are configurable and extensible, which means from debugger
perspective that some registers and debug capabilities are optional, therefore
it is up to the GDB stub to determine exact list of register available on
target and supply it to GDB via XML target descriptions. List of registers
that is known to GDB and is required is intentionally kept small to simplify
requirements to GDB stub and implementation of a GDB client.
gdb/ChangeLog:
* Makefile.in (ALL_TARGET_OBS): Add arc-tdep.o.
(HFILES_NO_SRCDIR): Add arc-tdep.h.
(ALLDEPFILES): Add arc-tdep.c.
* NEWS: Mention new ARC port.
* configure.tgt: Add ARC.
* arc-tdep.c: New file.
* arc-tdep.h: New file.
* features/Makefile (XMLTOC): Add arc-v2.xml and arc-arcompact.xml.
* features/arc-v2.xml: New file.
* features/arc-v2.c: New file (generated).
* features/arc-arcompact.xml: New file.
* features/arc-arcompact.c: New file (generated).
gdb/doc/ChangeLog:
* gdb.texinfo (Embedded Processors): Document ARC.
(Synopsys ARC): New section.
(Standard Target Features): Document ARC features.
(ARC Features): New section.
gdb/testsuite/ChangeLog:
* gdb.xml/tdesc-regs.exp: set core-regs for arc*-*-elf32.
* configure.tgt: Make arc-*-* obsolete.
* NEWS: Mention that arc-*-* has been identifed as obsolete.
* MAINTAINERS: Make arc-elf obsolete.
* arc-tdep.c: Make file obsolete.
* config/arc/arc.mt: Ditto.
* config/arc/tm-arc.h: Ditto.
