/* Target-dependent code for the Xtensa port of GDB, the GNU debugger.
- Copyright (C) 2003-2013 Free Software Foundation, Inc.
+ Copyright (C) 2003-2016 Free Software Foundation, Inc.
This file is part of GDB.
#include "value.h"
#include "dis-asm.h"
#include "inferior.h"
+#include "osabi.h"
#include "floatformat.h"
#include "regcache.h"
#include "reggroups.h"
#include "dwarf2.h"
#include "dwarf2-frame.h"
#include "dwarf2loc.h"
-#include "frame.h"
#include "frame-base.h"
#include "frame-unwind.h"
#include "command.h"
#include "gdbcmd.h"
-#include "gdb_assert.h"
#include "xtensa-isa.h"
#include "xtensa-tdep.h"
#include "xtensa-config.h"
+#include <algorithm>
static unsigned int xtensa_debug_level = 0;
if (tp == NULL)
{
char *name = xstrprintf ("int%d", size * 8);
- tp = xmalloc (sizeof (struct ctype_cache));
+
+ tp = XNEW (struct ctype_cache);
tp->next = tdep->type_entries;
tdep->type_entries = tp;
tp->size = size;
if (regnum == gdbarch_tdep (gdbarch)->regmap[i].target_number)
return i;
- internal_error (__FILE__, __LINE__,
- _("invalid dwarf/stabs register number %d"), regnum);
- return 0;
+ return -1;
}
DEBUGTRACE ("xtensa_pseudo_register_read (... regnum = %d (%s) ...)\n",
regnum, xtensa_register_name (gdbarch, regnum));
- if (regnum == gdbarch_num_regs (gdbarch)
- + gdbarch_num_pseudo_regs (gdbarch) - 1)
- regnum = gdbarch_tdep (gdbarch)->a0_base + 1;
-
/* Read aliases a0..a15, if this is a Windowed ABI. */
if (gdbarch_tdep (gdbarch)->isa_use_windowed_registers
&& (regnum >= gdbarch_tdep (gdbarch)->a0_base)
DEBUGTRACE ("xtensa_pseudo_register_write (... regnum = %d (%s) ...)\n",
regnum, xtensa_register_name (gdbarch, regnum));
- if (regnum == gdbarch_num_regs (gdbarch)
- + gdbarch_num_pseudo_regs (gdbarch) -1)
- regnum = gdbarch_tdep (gdbarch)->a0_base + 1;
-
/* Renumber register, if aliase a0..a15 on Windowed ABI. */
if (gdbarch_tdep (gdbarch)->isa_use_windowed_registers
&& (regnum >= gdbarch_tdep (gdbarch)->a0_base)
const void *gregs,
size_t len)
{
- const xtensa_elf_gregset_t *regs = gregs;
+ const xtensa_elf_gregset_t *regs = (const xtensa_elf_gregset_t *) gregs;
struct gdbarch *gdbarch = get_regcache_arch (rc);
int i;
};
-/* Return the appropriate register set for the core
- section identified by SECT_NAME and SECT_SIZE. */
+/* Iterate over supported core file register note sections. */
-static const struct regset *
-xtensa_regset_from_core_section (struct gdbarch *core_arch,
- const char *sect_name,
- size_t sect_size)
+static void
+xtensa_iterate_over_regset_sections (struct gdbarch *gdbarch,
+ iterate_over_regset_sections_cb *cb,
+ void *cb_data,
+ const struct regcache *regcache)
{
- DEBUGTRACE ("xtensa_regset_from_core_section "
- "(..., sect_name==\"%s\", sect_size==%x)\n",
- sect_name, (unsigned int) sect_size);
-
- if (strcmp (sect_name, ".reg") == 0
- && sect_size >= sizeof(xtensa_elf_gregset_t))
- return &xtensa_gregset;
+ DEBUGTRACE ("xtensa_iterate_over_regset_sections\n");
- return NULL;
+ cb (".reg", sizeof (xtensa_elf_gregset_t), &xtensa_gregset,
+ NULL, cb_data);
}
CORE_ADDR start_addr;
xtensa_isa isa;
xtensa_insnbuf ins, slot;
- char ibuf[XTENSA_ISA_BSZ];
+ gdb_byte ibuf[XTENSA_ISA_BSZ];
CORE_ADDR ia, bt, ba;
xtensa_format ifmt;
int ilen, islots, is;
int windowed, ps_regnum;
if (*this_cache)
- return *this_cache;
+ return (struct xtensa_frame_cache *) *this_cache;
pc = get_frame_register_unsigned (this_frame, gdbarch_pc_regnum (gdbarch));
ps_regnum = gdbarch_ps_regnum (gdbarch);
if (windowed)
{
- char op1;
+ LONGEST op1;
/* Get WINDOWBASE, WINDOWSTART, and PS registers. */
wb = get_frame_register_unsigned (this_frame,
ws = get_frame_register_unsigned (this_frame,
gdbarch_tdep (gdbarch)->ws_regnum);
- op1 = read_memory_integer (pc, 1, byte_order);
- if (XTENSA_IS_ENTRY (gdbarch, op1))
+ if (safe_read_memory_integer (pc, 1, byte_order, &op1)
+ && XTENSA_IS_ENTRY (gdbarch, op1))
{
int callinc = CALLINC (ps);
ra = get_frame_register_unsigned
if (*this_cache == NULL)
*this_cache = xtensa_frame_cache (this_frame, this_cache);
- cache = *this_cache;
+ cache = (struct xtensa_frame_cache *) *this_cache;
if (regnum ==gdbarch_pc_regnum (gdbarch))
saved_reg = cache->ra;
void *dst)
{
struct gdbarch *gdbarch = get_regcache_arch (regcache);
- bfd_byte *valbuf = dst;
+ bfd_byte *valbuf = (bfd_byte *) dst;
int len = TYPE_LENGTH (type);
ULONGEST pc, wb;
int callsize, areg;
const void *dst)
{
struct gdbarch *gdbarch = get_regcache_arch (regcache);
- const bfd_byte *valbuf = dst;
+ const bfd_byte *valbuf = (const bfd_byte *) dst;
unsigned int areg;
ULONGEST pc, wb;
int callsize;
return sp + SP_ALIGNMENT;
}
+/* Implement the breakpoint_kind_from_pc gdbarch method. */
+
+static int
+xtensa_breakpoint_kind_from_pc (struct gdbarch *gdbarch, CORE_ADDR *pcptr)
+{
+ if (gdbarch_tdep (gdbarch)->isa_use_density_instructions)
+ return 2;
+ else
+ return 4;
+}
/* Return a breakpoint for the current location of PC. We always use
the density version if we have density instructions (regardless of the
#define DENSITY_BIG_BREAKPOINT { 0xd2, 0x0f }
#define DENSITY_LITTLE_BREAKPOINT { 0x2d, 0xf0 }
-static const unsigned char *
-xtensa_breakpoint_from_pc (struct gdbarch *gdbarch, CORE_ADDR *pcptr,
- int *lenptr)
-{
- static unsigned char big_breakpoint[] = BIG_BREAKPOINT;
- static unsigned char little_breakpoint[] = LITTLE_BREAKPOINT;
- static unsigned char density_big_breakpoint[] = DENSITY_BIG_BREAKPOINT;
- static unsigned char density_little_breakpoint[] = DENSITY_LITTLE_BREAKPOINT;
+/* Implement the sw_breakpoint_from_kind gdbarch method. */
- DEBUGTRACE ("xtensa_breakpoint_from_pc (pc = 0x%08x)\n", (int) *pcptr);
+static const gdb_byte *
+xtensa_sw_breakpoint_from_kind (struct gdbarch *gdbarch, int kind, int *size)
+{
+ *size = kind;
- if (gdbarch_tdep (gdbarch)->isa_use_density_instructions)
+ if (kind == 4)
{
+ static unsigned char big_breakpoint[] = BIG_BREAKPOINT;
+ static unsigned char little_breakpoint[] = LITTLE_BREAKPOINT;
+
if (gdbarch_byte_order (gdbarch) == BFD_ENDIAN_BIG)
- {
- *lenptr = sizeof (density_big_breakpoint);
- return density_big_breakpoint;
- }
+ return big_breakpoint;
else
- {
- *lenptr = sizeof (density_little_breakpoint);
- return density_little_breakpoint;
- }
+ return little_breakpoint;
}
else
{
+ static unsigned char density_big_breakpoint[] = DENSITY_BIG_BREAKPOINT;
+ static unsigned char density_little_breakpoint[]
+ = DENSITY_LITTLE_BREAKPOINT;
+
if (gdbarch_byte_order (gdbarch) == BFD_ENDIAN_BIG)
- {
- *lenptr = sizeof (big_breakpoint);
- return big_breakpoint;
- }
+ return density_big_breakpoint;
else
- {
- *lenptr = sizeof (little_breakpoint);
- return little_breakpoint;
- }
+ return density_little_breakpoint;
}
}
+GDBARCH_BREAKPOINT_FROM_PC (xtensa)
+
/* Call0 ABI support routines. */
/* Return true, if PC points to "ret" or "ret.n". */
#define RETURN_RET goto done
xtensa_isa isa;
xtensa_insnbuf ins, slot;
- char ibuf[XTENSA_ISA_BSZ];
+ gdb_byte ibuf[XTENSA_ISA_BSZ];
CORE_ADDR ia, bt, ba;
xtensa_format ifmt;
int ilen, islots, is;
CORE_ADDR ia; /* Current insn address in prologue. */
CORE_ADDR ba = 0; /* Current address at base of insn buffer. */
CORE_ADDR bt; /* Current address at top+1 of insn buffer. */
- char ibuf[XTENSA_ISA_BSZ];/* Instruction buffer for decoding prologue. */
+ gdb_byte ibuf[XTENSA_ISA_BSZ];/* Instruction buffer for decoding prologue. */
xtensa_isa isa; /* libisa ISA handle. */
xtensa_insnbuf ins, slot; /* libisa handle to decoded insn, slot. */
xtensa_format ifmt; /* libisa instruction format. */
if (pc == 0)
{
find_pc_partial_function (start, 0, NULL, &end_pc);
- body_pc = min (end_pc, body_pc);
+ body_pc = std::min (end_pc, body_pc);
}
else
- body_pc = min (pc, body_pc);
+ body_pc = std::min (pc, body_pc);
cache->call0 = 1;
rtmp = (xtensa_c0reg_t*) alloca(nregs * sizeof(xtensa_c0reg_t));
{
xtensa_isa isa;
xtensa_insnbuf ins, slot;
- char ibuf[XTENSA_ISA_BSZ];
+ gdb_byte ibuf[XTENSA_ISA_BSZ];
CORE_ADDR ia, bt, ba;
xtensa_format ifmt;
int ilen, islots, is;
xtensa_opcode opc;
int insn_num = 0;
- int fail = 0;
void (*func) (struct gdbarch *, int, int, int, CORE_ADDR);
- int at, as, offset;
+ uint32_t at, as, offset;
/* WindowUnderflow12 = true, when inside _WindowUnderflow12. */
int WindowUnderflow12 = (current_pc & 0x1ff) >= 0x140;
{
struct gdbarch_tdep *tdep;
struct gdbarch *gdbarch;
- struct xtensa_abi_handler *abi_handler;
DEBUGTRACE ("gdbarch_init()\n");
set_gdbarch_inner_than (gdbarch, core_addr_lessthan);
/* Set breakpoints. */
- set_gdbarch_breakpoint_from_pc (gdbarch, xtensa_breakpoint_from_pc);
+ SET_GDBARCH_BREAKPOINT_MANIPULATION (xtensa);
/* After breakpoint instruction or illegal instruction, pc still
points at break instruction, so don't decrement. */
xtensa_add_reggroups (gdbarch);
set_gdbarch_register_reggroup_p (gdbarch, xtensa_register_reggroup_p);
- set_gdbarch_regset_from_core_section (gdbarch,
- xtensa_regset_from_core_section);
+ set_gdbarch_iterate_over_regset_sections
+ (gdbarch, xtensa_iterate_over_regset_sections);
set_solib_svr4_fetch_link_map_offsets
(gdbarch, svr4_ilp32_fetch_link_map_offsets);
+ /* Hook in the ABI-specific overrides, if they have been registered. */
+ gdbarch_init_osabi (info, gdbarch);
+
return gdbarch;
}
void
_initialize_xtensa_tdep (void)
{
- struct cmd_list_element *c;
-
gdbarch_register (bfd_arch_xtensa, xtensa_gdbarch_init, xtensa_dump_tdep);
xtensa_init_reggroups ();
projects / deliverable / binutils-gdb.git / blobdiff