/* Target dependent code for CRIS, for GDB, the GNU debugger.
- Copyright (C) 2001-2017 Free Software Foundation, Inc.
+ Copyright (C) 2001-2020 Free Software Foundation, Inc.
Contributed by Axis Communications AB.
Written by Hendrik Ruijter, Stefan Andersson, and Orjan Friberg.
#include "frame-unwind.h"
#include "frame-base.h"
#include "trad-frame.h"
-#include "dwarf2-frame.h"
+#include "dwarf2/frame.h"
#include "symtab.h"
#include "inferior.h"
#include "gdbtypes.h"
#include "osabi.h"
#include "arch-utils.h"
#include "regcache.h"
+#include "regset.h"
#include "objfiles.h"
static unsigned int usr_cmd_cris_version;
/* Indicates whether to trust the above variable. */
-static int usr_cmd_cris_version_valid = 0;
+static bool usr_cmd_cris_version_valid = false;
static const char cris_mode_normal[] = "normal";
static const char cris_mode_guru[] = "guru";
static const char *usr_cmd_cris_mode = cris_mode_normal;
/* Whether to make use of Dwarf-2 CFI (default on). */
-static int usr_cmd_cris_dwarf2_cfi = 1;
+static bool usr_cmd_cris_dwarf2_cfi = true;
/* Sigtramp identification code copied from i386-linux-tdep.c. */
static void cris_dump_tdep (struct gdbarch *, struct ui_file *);
-static void set_cris_version (char *ignore_args, int from_tty,
+static void set_cris_version (const char *ignore_args, int from_tty,
struct cmd_list_element *c);
-static void set_cris_mode (char *ignore_args, int from_tty,
+static void set_cris_mode (const char *ignore_args, int from_tty,
struct cmd_list_element *c);
-static void set_cris_dwarf2_cfi (char *ignore_args, int from_tty,
+static void set_cris_dwarf2_cfi (const char *ignore_args, int from_tty,
struct cmd_list_element *c);
static CORE_ADDR cris_scan_prologue (CORE_ADDR pc,
struct frame_info *this_frame,
struct cris_unwind_cache *info);
-static CORE_ADDR cris_unwind_pc (struct gdbarch *gdbarch,
- struct frame_info *next_frame);
-
-static CORE_ADDR cris_unwind_sp (struct gdbarch *gdbarch,
- struct frame_info *next_frame);
-
/* When arguments must be pushed onto the stack, they go on in reverse
order. The below implements a FILO (stack) to do this.
Copied from d10v-tdep.c. */
return trad_frame_get_prev_register (this_frame, info->saved_regs, regnum);
}
-/* Assuming THIS_FRAME is a dummy, return the frame ID of that dummy
- frame. The frame ID's base needs to match the TOS value saved by
- save_dummy_frame_tos(), and the PC match the dummy frame's breakpoint. */
-
-static struct frame_id
-cris_dummy_id (struct gdbarch *gdbarch, struct frame_info *this_frame)
-{
- CORE_ADDR sp;
- sp = get_frame_register_unsigned (this_frame, gdbarch_sp_regnum (gdbarch));
- return frame_id_build (sp, get_frame_pc (this_frame));
-}
-
static CORE_ADDR
cris_frame_align (struct gdbarch *gdbarch, CORE_ADDR sp)
{
cris_push_dummy_call (struct gdbarch *gdbarch, struct value *function,
struct regcache *regcache, CORE_ADDR bp_addr,
int nargs, struct value **args, CORE_ADDR sp,
- int struct_return, CORE_ADDR struct_addr)
+ function_call_return_method return_method,
+ CORE_ADDR struct_addr)
{
enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
int argreg;
/* Are we returning a value using a structure return or a normal value
return? struct_addr is the address of the reserved space for the return
structure to be written on the stack. */
- if (struct_return)
- {
- regcache_cooked_write_unsigned (regcache, STR_REGNUM, struct_addr);
- }
+ if (return_method == return_method_struct)
+ regcache_cooked_write_unsigned (regcache, STR_REGNUM, struct_addr);
/* Now load as many as possible of the first arguments into registers,
and push the rest onto the stack. */
/* Data passed by value. Fits in available register(s). */
for (i = 0; i < reg_demand; i++)
{
- regcache_cooked_write (regcache, argreg, val);
+ regcache->cooked_write (argreg, val);
argreg++;
val += 4;
}
{
if (argreg <= ARG4_REGNUM)
{
- regcache_cooked_write (regcache, argreg, val);
+ regcache->cooked_write (argreg, val);
argreg++;
val += 4;
}
return pc_after_prologue;
}
-static CORE_ADDR
-cris_unwind_pc (struct gdbarch *gdbarch, struct frame_info *next_frame)
-{
- ULONGEST pc;
- pc = frame_unwind_register_unsigned (next_frame,
- gdbarch_pc_regnum (gdbarch));
- return pc;
-}
-
-static CORE_ADDR
-cris_unwind_sp (struct gdbarch *gdbarch, struct frame_info *next_frame)
-{
- ULONGEST sp;
- sp = frame_unwind_register_unsigned (next_frame,
- gdbarch_sp_regnum (gdbarch));
- return sp;
-}
-
/* Implement the breakpoint_kind_from_pc gdbarch method. */
static int
/* Indeterminate/obsolete. */
return 0;
case cris_ver_v0_3:
- return (version >= 0 && version <= 3);
+ return in_inclusive_range (version, 0U, 3U);
case cris_ver_v3p:
return (version >= 3);
case cris_ver_v8:
- return (version == 8 || version == 9);
+ return in_inclusive_range (version, 8U, 9U);
case cris_ver_v8p:
return (version >= 8);
case cris_ver_v0_10:
- return (version >= 0 && version <= 10);
+ return in_inclusive_range (version, 0U, 10U);
case cris_ver_v3_10:
- return (version >= 3 && version <= 10);
+ return in_inclusive_range (version, 3U, 10U);
case cris_ver_v8_10:
- return (version >= 8 && version <= 10);
+ return in_inclusive_range (version, 8U, 10U);
case cris_ver_v10:
return (version == 10);
case cris_ver_v10p:
cris_store_return_value (struct type *type, struct regcache *regcache,
const gdb_byte *valbuf)
{
- struct gdbarch *gdbarch = get_regcache_arch (regcache);
+ struct gdbarch *gdbarch = regcache->arch ();
enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
ULONGEST val;
int len = TYPE_LENGTH (type);
cris_extract_return_value (struct type *type, struct regcache *regcache,
gdb_byte *valbuf)
{
- struct gdbarch *gdbarch = get_regcache_arch (regcache);
+ struct gdbarch *gdbarch = regcache->arch ();
enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
ULONGEST val;
int len = TYPE_LENGTH (type);
struct type *type, struct regcache *regcache,
gdb_byte *readbuf, const gdb_byte *writebuf)
{
- if (TYPE_CODE (type) == TYPE_CODE_STRUCT
- || TYPE_CODE (type) == TYPE_CODE_UNION
+ if (type->code () == TYPE_CODE_STRUCT
+ || type->code () == TYPE_CODE_UNION
|| TYPE_LENGTH (type) > 8)
/* Structs, unions, and anything larger than 8 bytes (2 registers)
goes on the stack. */
int i;
int offset;
unsigned short insn;
- struct gdbarch *gdbarch = get_regcache_arch (regcache);
+ struct gdbarch *gdbarch = regcache->arch ();
enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
/* Create a local register image and set the initial state. */
static std::vector<CORE_ADDR>
cris_software_single_step (struct regcache *regcache)
{
- struct gdbarch *gdbarch = get_regcache_arch (regcache);
+ struct gdbarch *gdbarch = regcache->arch ();
inst_env_type inst_env;
std::vector<CORE_ADDR> next_pcs;
inst_env->disable_interrupt = 0;
}
-/* Handles the intructions that's not yet implemented, by setting
+/* Handles the instructions that's not yet implemented, by setting
inst_env->invalid to true. */
static void
/* Unpack a cris_elf_gregset_t into GDB's register cache. */
static void
-cris_supply_gregset (struct regcache *regcache, cris_elf_gregset_t *gregsetp)
+cris_supply_gregset (const struct regset *regset, struct regcache *regcache,
+ int regnum, const void *gregs, size_t len)
{
- struct gdbarch *gdbarch = get_regcache_arch (regcache);
+ struct gdbarch *gdbarch = regcache->arch ();
struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
int i;
- cris_elf_greg_t *regp = *gregsetp;
+ const cris_elf_greg_t *regp = static_cast<const cris_elf_greg_t *>(gregs);
+
+ if (len != sizeof (cris_elf_gregset_t)
+ && len != sizeof (crisv32_elf_gregset_t))
+ warning (_("wrong size gregset struct in core file"));
+ gdb_assert (len >= sizeof (crisv32_elf_gregset_t));
/* The kernel dumps all 32 registers as unsigned longs, but supply_register
knows about the actual size of each register so that's no problem. */
for (i = 0; i < NUM_GENREGS + NUM_SPECREGS; i++)
{
- regcache_raw_supply (regcache, i, (char *)®p[i]);
+ if (regnum == -1 || regnum == i)
+ regcache->raw_supply (i, (char *)®p[i]);
}
- if (tdep->cris_version == 32)
+ if (tdep->cris_version == 32 && (regnum == -1 || regnum == ERP_REGNUM))
{
/* Needed to set pseudo-register PC for CRISv32. */
/* FIXME: If ERP is in a delay slot at this point then the PC will
be wrong. Issue a warning to alert the user. */
- regcache_raw_supply (regcache, gdbarch_pc_regnum (gdbarch),
- (char *)®p[ERP_REGNUM]);
+ regcache->raw_supply (gdbarch_pc_regnum (gdbarch),
+ (char *)®p[ERP_REGNUM]);
if (*(char *)®p[ERP_REGNUM] & 0x1)
fprintf_unfiltered (gdb_stderr, "Warning: PC in delay slot\n");
}
}
-/* Use a local version of this function to get the correct types for
- regsets, until multi-arch core support is ready. */
+static const struct regset cris_regset = {
+ nullptr,
+ cris_supply_gregset,
+ /* We don't need a collect function because we only use this for core files
+ (via iterate_over_regset_sections). */
+ nullptr,
+ REGSET_VARIABLE_SIZE
+};
-static void
-fetch_core_registers (struct regcache *regcache,
- char *core_reg_sect, unsigned core_reg_size,
- int which, CORE_ADDR reg_addr)
+static void cris_iterate_over_regset_sections (struct gdbarch *gdbarch,
+ iterate_over_regset_sections_cb *cb,
+ void *cb_data,
+ const struct regcache *regcache)
{
- cris_elf_gregset_t gregset;
-
- switch (which)
- {
- case 0:
- if (core_reg_size != sizeof (cris_elf_gregset_t)
- && core_reg_size != sizeof (crisv32_elf_gregset_t))
- {
- warning (_("wrong size gregset struct in core file"));
- }
- else
- {
- memcpy (&gregset, core_reg_sect, sizeof (gregset));
- cris_supply_gregset (regcache, &gregset);
- }
-
- default:
- /* We've covered all the kinds of registers we know about here,
- so this must be something we wouldn't know what to do with
- anyway. Just ignore it. */
- break;
- }
+ cb (".reg", sizeof (crisv32_elf_gregset_t), sizeof (crisv32_elf_gregset_t),
+ &cris_regset, NULL, cb_data);
}
-static struct core_fns cris_elf_core_fns =
-{
- bfd_target_elf_flavour, /* core_flavour */
- default_check_format, /* check_format */
- default_core_sniffer, /* core_sniffer */
- fetch_core_registers, /* core_read_registers */
- NULL /* next */
-};
-
+void _initialize_cris_tdep ();
void
-_initialize_cris_tdep (void)
+_initialize_cris_tdep ()
{
gdbarch_register (bfd_arch_cris, cris_gdbarch_init, cris_dump_tdep);
NULL, /* FIXME: i18n: Usage of Dwarf-2 CFI
for CRIS is %d. */
&setlist, &showlist);
-
- deprecated_add_core_fns (&cris_elf_core_fns);
}
/* Prints out all target specific values. */
}
static void
-set_cris_version (char *ignore_args, int from_tty,
+set_cris_version (const char *ignore_args, int from_tty,
struct cmd_list_element *c)
{
struct gdbarch_info info;
}
static void
-set_cris_mode (char *ignore_args, int from_tty,
+set_cris_mode (const char *ignore_args, int from_tty,
struct cmd_list_element *c)
{
struct gdbarch_info info;
}
static void
-set_cris_dwarf2_cfi (char *ignore_args, int from_tty,
+set_cris_dwarf2_cfi (const char *ignore_args, int from_tty,
struct cmd_list_element *c)
{
struct gdbarch_info info;
set_gdbarch_breakpoint_kind_from_pc (gdbarch, cris_breakpoint_kind_from_pc);
set_gdbarch_sw_breakpoint_from_kind (gdbarch, cris_sw_breakpoint_from_kind);
+ set_gdbarch_iterate_over_regset_sections (gdbarch, cris_iterate_over_regset_sections);
- set_gdbarch_unwind_pc (gdbarch, cris_unwind_pc);
- set_gdbarch_unwind_sp (gdbarch, cris_unwind_sp);
- set_gdbarch_dummy_id (gdbarch, cris_dummy_id);
-
if (tdep->cris_dwarf2_cfi == 1)
{
/* Hook in the Dwarf-2 frame sniffer. */
projects / deliverable / binutils-gdb.git / blobdiff