/* Intel 386 target-dependent stuff.
- Copyright (C) 1988-2014 Free Software Foundation, Inc.
+ Copyright (C) 1988-2015 Free Software Foundation, Inc.
This file is part of GDB.
#include "frame-base.h"
#include "frame-unwind.h"
#include "inferior.h"
+#include "infrun.h"
#include "gdbcmd.h"
#include "gdbcore.h"
#include "gdbtypes.h"
#include "dis-asm.h"
#include "disasm.h"
#include "remote.h"
-#include "exceptions.h"
-#include "gdb_assert.h"
-#include <string.h>
-
#include "i386-tdep.h"
#include "i387-tdep.h"
-#include "i386-xstate.h"
+#include "x86-xstate.h"
#include "record.h"
#include "record-full.h"
-#include <stdint.h>
-
#include "features/i386/i386.c"
#include "features/i386/i386-avx.c"
#include "features/i386/i386-mpx.c"
{
CORE_ADDR post_prologue_pc
= skip_prologue_using_sal (gdbarch, func_addr);
- struct symtab *s = find_pc_symtab (func_addr);
+ struct compunit_symtab *cust = find_pc_compunit_symtab (func_addr);
/* Clang always emits a line note before the prologue and another
one after. We trust clang to emit usable line notes. */
if (post_prologue_pc
- && (s != NULL
- && s->producer != NULL
- && strncmp (s->producer, "clang ", sizeof ("clang ") - 1) == 0))
+ && (cust != NULL
+ && COMPUNIT_PRODUCER (cust) != NULL
+ && startswith (COMPUNIT_PRODUCER (cust), "clang ")))
return max (start_pc, post_prologue_pc);
}
static struct i386_frame_cache *
i386_frame_cache (struct frame_info *this_frame, void **this_cache)
{
- volatile struct gdb_exception ex;
struct i386_frame_cache *cache;
if (*this_cache)
cache = i386_alloc_frame_cache ();
*this_cache = cache;
- TRY_CATCH (ex, RETURN_MASK_ERROR)
+ TRY
{
i386_frame_cache_1 (this_frame, cache);
}
- if (ex.reason < 0 && ex.error != NOT_AVAILABLE_ERROR)
- throw_exception (ex);
+ CATCH (ex, RETURN_MASK_ERROR)
+ {
+ if (ex.error != NOT_AVAILABLE_ERROR)
+ throw_exception (ex);
+ }
+ END_CATCH
return cache;
}
/* Normal frames, but in a function epilogue. */
-/* The epilogue is defined here as the 'ret' instruction, which will
+/* Implement the stack_frame_destroyed_p gdbarch method.
+
+ The epilogue is defined here as the 'ret' instruction, which will
follow any instruction such as 'leave' or 'pop %ebp' that destroys
the function's stack frame. */
static int
-i386_in_function_epilogue_p (struct gdbarch *gdbarch, CORE_ADDR pc)
+i386_stack_frame_destroyed_p (struct gdbarch *gdbarch, CORE_ADDR pc)
{
gdb_byte insn;
- struct symtab *symtab;
+ struct compunit_symtab *cust;
- symtab = find_pc_symtab (pc);
- if (symtab && symtab->epilogue_unwind_valid)
+ cust = find_pc_compunit_symtab (pc);
+ if (cust != NULL && COMPUNIT_EPILOGUE_UNWIND_VALID (cust))
return 0;
if (target_read_memory (pc, &insn, 1))
void **this_prologue_cache)
{
if (frame_relative_level (this_frame) == 0)
- return i386_in_function_epilogue_p (get_frame_arch (this_frame),
- get_frame_pc (this_frame));
+ return i386_stack_frame_destroyed_p (get_frame_arch (this_frame),
+ get_frame_pc (this_frame));
else
return 0;
}
static struct i386_frame_cache *
i386_epilogue_frame_cache (struct frame_info *this_frame, void **this_cache)
{
- volatile struct gdb_exception ex;
struct i386_frame_cache *cache;
CORE_ADDR sp;
cache = i386_alloc_frame_cache ();
*this_cache = cache;
- TRY_CATCH (ex, RETURN_MASK_ERROR)
+ TRY
{
cache->pc = get_frame_func (this_frame);
cache->base_p = 1;
}
- if (ex.reason < 0 && ex.error != NOT_AVAILABLE_ERROR)
- throw_exception (ex);
+ CATCH (ex, RETURN_MASK_ERROR)
+ {
+ if (ex.error != NOT_AVAILABLE_ERROR)
+ throw_exception (ex);
+ }
+ END_CATCH
return cache;
}
struct gdbarch *gdbarch = get_frame_arch (this_frame);
struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
- volatile struct gdb_exception ex;
struct i386_frame_cache *cache;
CORE_ADDR addr;
gdb_byte buf[4];
cache = i386_alloc_frame_cache ();
- TRY_CATCH (ex, RETURN_MASK_ERROR)
+ TRY
{
get_frame_register (this_frame, I386_ESP_REGNUM, buf);
cache->base = extract_unsigned_integer (buf, 4, byte_order) - 4;
cache->base_p = 1;
}
- if (ex.reason < 0 && ex.error != NOT_AVAILABLE_ERROR)
- throw_exception (ex);
+ CATCH (ex, RETURN_MASK_ERROR)
+ {
+ if (ex.error != NOT_AVAILABLE_ERROR)
+ throw_exception (ex);
+ }
+ END_CATCH
*this_cache = cache;
return cache;
i386_supply_gregset (const struct regset *regset, struct regcache *regcache,
int regnum, const void *gregs, size_t len)
{
- const struct gdbarch_tdep *tdep = gdbarch_tdep (regset->arch);
+ struct gdbarch *gdbarch = get_regcache_arch (regcache);
+ const struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
const gdb_byte *regs = gregs;
int i;
- gdb_assert (len == tdep->sizeof_gregset);
+ gdb_assert (len >= tdep->sizeof_gregset);
for (i = 0; i < tdep->gregset_num_regs; i++)
{
general-purpose register set REGSET. If REGNUM is -1, do this for
all registers in REGSET. */
-void
+static void
i386_collect_gregset (const struct regset *regset,
const struct regcache *regcache,
int regnum, void *gregs, size_t len)
{
- const struct gdbarch_tdep *tdep = gdbarch_tdep (regset->arch);
+ struct gdbarch *gdbarch = get_regcache_arch (regcache);
+ const struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
gdb_byte *regs = gregs;
int i;
- gdb_assert (len == tdep->sizeof_gregset);
+ gdb_assert (len >= tdep->sizeof_gregset);
for (i = 0; i < tdep->gregset_num_regs; i++)
{
i386_supply_fpregset (const struct regset *regset, struct regcache *regcache,
int regnum, const void *fpregs, size_t len)
{
- const struct gdbarch_tdep *tdep = gdbarch_tdep (regset->arch);
+ struct gdbarch *gdbarch = get_regcache_arch (regcache);
+ const struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
if (len == I387_SIZEOF_FXSAVE)
{
return;
}
- gdb_assert (len == tdep->sizeof_fpregset);
+ gdb_assert (len >= tdep->sizeof_fpregset);
i387_supply_fsave (regcache, regnum, fpregs);
}
const struct regcache *regcache,
int regnum, void *fpregs, size_t len)
{
- const struct gdbarch_tdep *tdep = gdbarch_tdep (regset->arch);
+ struct gdbarch *gdbarch = get_regcache_arch (regcache);
+ const struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
if (len == I387_SIZEOF_FXSAVE)
{
return;
}
- gdb_assert (len == tdep->sizeof_fpregset);
+ gdb_assert (len >= tdep->sizeof_fpregset);
i387_collect_fsave (regcache, regnum, fpregs);
}
-/* Similar to i386_supply_fpregset, but use XSAVE extended state. */
-
-static void
-i386_supply_xstateregset (const struct regset *regset,
- struct regcache *regcache, int regnum,
- const void *xstateregs, size_t len)
-{
- i387_supply_xsave (regcache, regnum, xstateregs);
-}
+/* Register set definitions. */
-/* Similar to i386_collect_fpregset , but use XSAVE extended state. */
+const struct regset i386_gregset =
+ {
+ NULL, i386_supply_gregset, i386_collect_gregset
+ };
-static void
-i386_collect_xstateregset (const struct regset *regset,
- const struct regcache *regcache,
- int regnum, void *xstateregs, size_t len)
-{
- i387_collect_xsave (regcache, regnum, xstateregs, 1);
-}
+const struct regset i386_fpregset =
+ {
+ NULL, i386_supply_fpregset, i386_collect_fpregset
+ };
-/* Return the appropriate register set for the core section identified
- by SECT_NAME and SECT_SIZE. */
+/* Default iterator over core file register note sections. */
-const struct regset *
-i386_regset_from_core_section (struct gdbarch *gdbarch,
- const char *sect_name, size_t sect_size)
+void
+i386_iterate_over_regset_sections (struct gdbarch *gdbarch,
+ iterate_over_regset_sections_cb *cb,
+ void *cb_data,
+ const struct regcache *regcache)
{
struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
- if (strcmp (sect_name, ".reg") == 0 && sect_size == tdep->sizeof_gregset)
- {
- if (tdep->gregset == NULL)
- tdep->gregset = regset_alloc (gdbarch, i386_supply_gregset,
- i386_collect_gregset);
- return tdep->gregset;
- }
-
- if ((strcmp (sect_name, ".reg2") == 0 && sect_size == tdep->sizeof_fpregset)
- || (strcmp (sect_name, ".reg-xfp") == 0
- && sect_size == I387_SIZEOF_FXSAVE))
- {
- if (tdep->fpregset == NULL)
- tdep->fpregset = regset_alloc (gdbarch, i386_supply_fpregset,
- i386_collect_fpregset);
- return tdep->fpregset;
- }
-
- if (strcmp (sect_name, ".reg-xstate") == 0)
- {
- if (tdep->xstateregset == NULL)
- tdep->xstateregset = regset_alloc (gdbarch,
- i386_supply_xstateregset,
- i386_collect_xstateregset);
-
- return tdep->xstateregset;
- }
-
- return NULL;
+ cb (".reg", tdep->sizeof_gregset, &i386_gregset, NULL, cb_data);
+ if (tdep->sizeof_fpregset)
+ cb (".reg2", tdep->sizeof_fpregset, tdep->fpregset, NULL, cb_data);
}
\f
if (symname)
{
- if (strncmp (symname, "__imp_", 6) == 0
- || strncmp (symname, "_imp_", 5) == 0)
+ if (startswith (symname, "__imp_")
+ || startswith (symname, "_imp_"))
return name ? 1 :
read_memory_unsigned_integer (indirect, 4, byte_order);
}
TRIPLET,
THREE_ARG_DISPLACEMENT,
DONE
- } current_state;
+ };
+ int current_state;
current_state = TRIPLET;
\f
+/* gdbarch gnu_triplet_regexp method. Both arches are acceptable as GDB always
+ also supplies -m64 or -m32 by gdbarch_gcc_target_options. */
+
+static const char *
+i386_gnu_triplet_regexp (struct gdbarch *gdbarch)
+{
+ return "(x86_64|i.86)";
+}
+
+\f
+
/* Generic ELF. */
void
i386_stap_is_single_operand);
set_gdbarch_stap_parse_special_token (gdbarch,
i386_stap_parse_special_token);
+
+ set_gdbarch_gnu_triplet_regexp (gdbarch, i386_gnu_triplet_regexp);
}
/* System V Release 4 (SVR4). */
set_gdbarch_sdb_reg_to_regnum (gdbarch, i386_svr4_reg_to_regnum);
set_gdbarch_has_dos_based_file_system (gdbarch, 1);
+
+ set_gdbarch_gnu_triplet_regexp (gdbarch, i386_gnu_triplet_regexp);
}
\f
ymm_avx512_regnum_p = i386_ymm_avx512_regnum_p (gdbarch, regnum);
zmm_regnum_p = i386_zmm_regnum_p (gdbarch, regnum);
- avx512_p = ((tdep->xcr0 & I386_XSTATE_AVX512_MASK)
- == I386_XSTATE_AVX512_MASK);
- avx_p = ((tdep->xcr0 & I386_XSTATE_AVX512_MASK)
- == I386_XSTATE_AVX_MASK) && !avx512_p;
- sse_p = ((tdep->xcr0 & I386_XSTATE_AVX512_MASK)
- == I386_XSTATE_SSE_MASK) && !avx512_p && ! avx_p;
+ avx512_p = ((tdep->xcr0 & X86_XSTATE_AVX512_MASK)
+ == X86_XSTATE_AVX512_MASK);
+ avx_p = ((tdep->xcr0 & X86_XSTATE_AVX512_MASK)
+ == X86_XSTATE_AVX_MASK) && !avx512_p;
+ sse_p = ((tdep->xcr0 & X86_XSTATE_AVX512_MASK)
+ == X86_XSTATE_SSE_MASK) && !avx512_p && ! avx_p;
if (group == vector_reggroup)
return (mmx_regnum_p
bnd_regnum_p = i386_bnd_regnum_p (gdbarch, regnum);
if (group == all_reggroup
- && ((bnd_regnum_p && (tdep->xcr0 & I386_XSTATE_MPX_MASK))))
+ && ((bnd_regnum_p && (tdep->xcr0 & X86_XSTATE_MPX_MASK))))
return bnd_regnum_p;
bndr_regnum_p = i386_bndr_regnum_p (gdbarch, regnum);
if (group == all_reggroup
- && ((bndr_regnum_p && (tdep->xcr0 & I386_XSTATE_MPX_MASK))))
+ && ((bndr_regnum_p && (tdep->xcr0 & X86_XSTATE_MPX_MASK))))
return 0;
mpx_ctrl_regnum_p = i386_mpx_ctrl_regnum_p (gdbarch, regnum);
if (group == all_reggroup
- && ((mpx_ctrl_regnum_p && (tdep->xcr0 & I386_XSTATE_MPX_MASK))))
+ && ((mpx_ctrl_regnum_p && (tdep->xcr0 & X86_XSTATE_MPX_MASK))))
return mpx_ctrl_regnum_p;
if (group == general_reggroup)
return read_memory_unsigned_integer (sp + (4 * (argi + 1)), 4, byte_order);
}
-static void
-i386_skip_permanent_breakpoint (struct regcache *regcache)
-{
- CORE_ADDR current_pc = regcache_read_pc (regcache);
-
- /* On i386, breakpoint is exactly 1 byte long, so we just
- adjust the PC in the regcache. */
- current_pc += 1;
- regcache_write_pc (regcache, current_pc);
-}
-
-
#define PREFIX_REPZ 0x01
#define PREFIX_REPNZ 0x02
#define PREFIX_LOCK 0x04
if (!feature_avx)
return 0;
- tdep->xcr0 = I386_XSTATE_MPX_AVX512_MASK;
+ tdep->xcr0 = X86_XSTATE_MPX_AVX512_MASK;
/* It may have been set by OSABI initialization function. */
if (tdep->k0_regnum < 0)
return 0;
if (!feature_avx512)
- tdep->xcr0 = I386_XSTATE_AVX_MASK;
+ tdep->xcr0 = X86_XSTATE_AVX_MASK;
/* It may have been set by OSABI initialization function. */
if (tdep->num_ymm_regs == 0)
tdep->ymmh_register_names[i]);
}
else if (feature_sse)
- tdep->xcr0 = I386_XSTATE_SSE_MASK;
+ tdep->xcr0 = X86_XSTATE_SSE_MASK;
else
{
- tdep->xcr0 = I386_XSTATE_X87_MASK;
+ tdep->xcr0 = X86_XSTATE_X87_MASK;
tdep->num_xmm_regs = 0;
}
if (feature_mpx)
{
- tdep->xcr0 |= I386_XSTATE_MPX_MASK;
+ tdep->xcr0 |= X86_XSTATE_MPX_MASK;
if (tdep->bnd0r_regnum < 0)
{
gdbarch = gdbarch_alloc (&info, tdep);
/* General-purpose registers. */
- tdep->gregset = NULL;
tdep->gregset_reg_offset = NULL;
tdep->gregset_num_regs = I386_NUM_GREGS;
tdep->sizeof_gregset = 0;
/* Floating-point registers. */
- tdep->fpregset = NULL;
tdep->sizeof_fpregset = I387_SIZEOF_FSAVE;
-
- tdep->xstateregset = NULL;
+ tdep->fpregset = &i386_fpregset;
/* The default settings include the FPU registers, the MMX registers
and the SSE registers. This can be overridden for a specific ABI
gap for the upper AVX, MPX and AVX512 registers. */
set_gdbarch_num_regs (gdbarch, I386_AVX512_NUM_REGS);
+ set_gdbarch_gnu_triplet_regexp (gdbarch, i386_gnu_triplet_regexp);
+
/* Get the x86 target description from INFO. */
tdesc = info.target_desc;
if (! tdesc_has_registers (tdesc))
/* If we have a register mapping, enable the generic core file
support, unless it has already been enabled. */
if (tdep->gregset_reg_offset
- && !gdbarch_regset_from_core_section_p (gdbarch))
- set_gdbarch_regset_from_core_section (gdbarch,
- i386_regset_from_core_section);
-
- set_gdbarch_skip_permanent_breakpoint (gdbarch,
- i386_skip_permanent_breakpoint);
+ && !gdbarch_iterate_over_regset_sections_p (gdbarch))
+ set_gdbarch_iterate_over_regset_sections
+ (gdbarch, i386_iterate_over_regset_sections);
set_gdbarch_fast_tracepoint_valid_at (gdbarch,
i386_fast_tracepoint_valid_at);
}
\f
+/* Return the target description for a specified XSAVE feature mask. */
+
+const struct target_desc *
+i386_target_description (uint64_t xcr0)
+{
+ switch (xcr0 & X86_XSTATE_ALL_MASK)
+ {
+ case X86_XSTATE_MPX_AVX512_MASK:
+ case X86_XSTATE_AVX512_MASK:
+ return tdesc_i386_avx512;
+ case X86_XSTATE_MPX_MASK:
+ return tdesc_i386_mpx;
+ case X86_XSTATE_AVX_MASK:
+ return tdesc_i386_avx;
+ default:
+ return tdesc_i386;
+ }
+}
+
+#define MPX_BASE_MASK (~(ULONGEST) 0xfff)
+
+/* Find the bound directory base address. */
+
+static unsigned long
+i386_mpx_bd_base (void)
+{
+ struct regcache *rcache;
+ struct gdbarch_tdep *tdep;
+ ULONGEST ret;
+ enum register_status regstatus;
+ struct gdb_exception except;
+
+ rcache = get_current_regcache ();
+ tdep = gdbarch_tdep (get_regcache_arch (rcache));
+
+ regstatus = regcache_raw_read_unsigned (rcache, tdep->bndcfgu_regnum, &ret);
+
+ if (regstatus != REG_VALID)
+ error (_("BNDCFGU register invalid, read status %d."), regstatus);
+
+ return ret & MPX_BASE_MASK;
+}
+
+/* Check if the current target is MPX enabled. */
+
+static int
+i386_mpx_enabled (void)
+{
+ const struct gdbarch_tdep *tdep = gdbarch_tdep (get_current_arch ());
+ const struct target_desc *tdesc = tdep->tdesc;
+
+ return (tdesc_find_feature (tdesc, "org.gnu.gdb.i386.mpx") != NULL);
+}
+
+#define MPX_BD_MASK 0xfffffff00000ULL /* select bits [47:20] */
+#define MPX_BT_MASK 0x0000000ffff8 /* select bits [19:3] */
+#define MPX_BD_MASK_32 0xfffff000 /* select bits [31:12] */
+#define MPX_BT_MASK_32 0x00000ffc /* select bits [11:2] */
+
+/* Find the bound table entry given the pointer location and the base
+ address of the table. */
+
+static CORE_ADDR
+i386_mpx_get_bt_entry (CORE_ADDR ptr, CORE_ADDR bd_base)
+{
+ CORE_ADDR offset1;
+ CORE_ADDR offset2;
+ CORE_ADDR mpx_bd_mask, bd_ptr_r_shift, bd_ptr_l_shift;
+ CORE_ADDR bt_mask, bt_select_r_shift, bt_select_l_shift;
+ CORE_ADDR bd_entry_addr;
+ CORE_ADDR bt_addr;
+ CORE_ADDR bd_entry;
+ struct gdbarch *gdbarch = get_current_arch ();
+ struct type *data_ptr_type = builtin_type (gdbarch)->builtin_data_ptr;
+
+
+ if (gdbarch_ptr_bit (gdbarch) == 64)
+ {
+ mpx_bd_mask = (CORE_ADDR) MPX_BD_MASK;
+ bd_ptr_r_shift = 20;
+ bd_ptr_l_shift = 3;
+ bt_select_r_shift = 3;
+ bt_select_l_shift = 5;
+ bt_mask = (CORE_ADDR) MPX_BT_MASK;
+
+ if ( sizeof (CORE_ADDR) == 4)
+ error (_("operation not supported"));
+ }
+ else
+ {
+ mpx_bd_mask = MPX_BD_MASK_32;
+ bd_ptr_r_shift = 12;
+ bd_ptr_l_shift = 2;
+ bt_select_r_shift = 2;
+ bt_select_l_shift = 4;
+ bt_mask = MPX_BT_MASK_32;
+ }
+
+ offset1 = ((ptr & mpx_bd_mask) >> bd_ptr_r_shift) << bd_ptr_l_shift;
+ bd_entry_addr = bd_base + offset1;
+ bd_entry = read_memory_typed_address (bd_entry_addr, data_ptr_type);
+
+ if ((bd_entry & 0x1) == 0)
+ error (_("Invalid bounds directory entry at %s."),
+ paddress (get_current_arch (), bd_entry_addr));
+
+ /* Clearing status bit. */
+ bd_entry--;
+ bt_addr = bd_entry & ~bt_select_r_shift;
+ offset2 = ((ptr & bt_mask) >> bt_select_r_shift) << bt_select_l_shift;
+
+ return bt_addr + offset2;
+}
+
+/* Print routine for the mpx bounds. */
+
+static void
+i386_mpx_print_bounds (const CORE_ADDR bt_entry[4])
+{
+ struct ui_out *uiout = current_uiout;
+ LONGEST size;
+ struct gdbarch *gdbarch = get_current_arch ();
+ CORE_ADDR onecompl = ~((CORE_ADDR) 0);
+ int bounds_in_map = ((~bt_entry[1] == 0 && bt_entry[0] == onecompl) ? 1 : 0);
+
+ if (bounds_in_map == 1)
+ {
+ ui_out_text (uiout, "Null bounds on map:");
+ ui_out_text (uiout, " pointer value = ");
+ ui_out_field_core_addr (uiout, "pointer-value", gdbarch, bt_entry[2]);
+ ui_out_text (uiout, ".");
+ ui_out_text (uiout, "\n");
+ }
+ else
+ {
+ ui_out_text (uiout, "{lbound = ");
+ ui_out_field_core_addr (uiout, "lower-bound", gdbarch, bt_entry[0]);
+ ui_out_text (uiout, ", ubound = ");
+
+ /* The upper bound is stored in 1's complement. */
+ ui_out_field_core_addr (uiout, "upper-bound", gdbarch, ~bt_entry[1]);
+ ui_out_text (uiout, "}: pointer value = ");
+ ui_out_field_core_addr (uiout, "pointer-value", gdbarch, bt_entry[2]);
+
+ if (gdbarch_ptr_bit (gdbarch) == 64)
+ size = ( (~(int64_t) bt_entry[1]) - (int64_t) bt_entry[0]);
+ else
+ size = ( ~((int32_t) bt_entry[1]) - (int32_t) bt_entry[0]);
+
+ /* In case the bounds are 0x0 and 0xffff... the difference will be -1.
+ -1 represents in this sense full memory access, and there is no need
+ one to the size. */
+
+ size = (size > -1 ? size + 1 : size);
+ ui_out_text (uiout, ", size = ");
+ ui_out_field_fmt (uiout, "size", "%s", plongest (size));
+
+ ui_out_text (uiout, ", metadata = ");
+ ui_out_field_core_addr (uiout, "metadata", gdbarch, bt_entry[3]);
+ ui_out_text (uiout, "\n");
+ }
+}
+
+/* Implement the command "show mpx bound". */
+
+static void
+i386_mpx_info_bounds (char *args, int from_tty)
+{
+ CORE_ADDR bd_base = 0;
+ CORE_ADDR addr;
+ CORE_ADDR bt_entry_addr = 0;
+ CORE_ADDR bt_entry[4];
+ int i;
+ struct gdbarch *gdbarch = get_current_arch ();
+ struct type *data_ptr_type = builtin_type (gdbarch)->builtin_data_ptr;
+
+ if (!i386_mpx_enabled ())
+ {
+ printf_unfiltered (_("Intel(R) Memory Protection Extensions not "
+ "supported on this target.\n"));
+ return;
+ }
+
+ if (args == NULL)
+ {
+ printf_unfiltered (_("Address of pointer variable expected.\n"));
+ return;
+ }
+
+ addr = parse_and_eval_address (args);
+
+ bd_base = i386_mpx_bd_base ();
+ bt_entry_addr = i386_mpx_get_bt_entry (addr, bd_base);
+
+ memset (bt_entry, 0, sizeof (bt_entry));
+
+ for (i = 0; i < 4; i++)
+ bt_entry[i] = read_memory_typed_address (bt_entry_addr
+ + i * data_ptr_type->length,
+ data_ptr_type);
+
+ i386_mpx_print_bounds (bt_entry);
+}
+
+/* Implement the command "set mpx bound". */
+
+static void
+i386_mpx_set_bounds (char *args, int from_tty)
+{
+ CORE_ADDR bd_base = 0;
+ CORE_ADDR addr, lower, upper;
+ CORE_ADDR bt_entry_addr = 0;
+ CORE_ADDR bt_entry[2];
+ const char *input = args;
+ int i;
+ struct gdbarch *gdbarch = get_current_arch ();
+ enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
+ struct type *data_ptr_type = builtin_type (gdbarch)->builtin_data_ptr;
+
+ if (!i386_mpx_enabled ())
+ error (_("Intel(R) Memory Protection Extensions not supported\
+ on this target."));
+
+ if (args == NULL)
+ error (_("Pointer value expected."));
+
+ addr = value_as_address (parse_to_comma_and_eval (&input));
+
+ if (input[0] == ',')
+ ++input;
+ if (input[0] == '\0')
+ error (_("wrong number of arguments: missing lower and upper bound."));
+ lower = value_as_address (parse_to_comma_and_eval (&input));
+
+ if (input[0] == ',')
+ ++input;
+ if (input[0] == '\0')
+ error (_("Wrong number of arguments; Missing upper bound."));
+ upper = value_as_address (parse_to_comma_and_eval (&input));
+
+ bd_base = i386_mpx_bd_base ();
+ bt_entry_addr = i386_mpx_get_bt_entry (addr, bd_base);
+ for (i = 0; i < 2; i++)
+ bt_entry[i] = read_memory_typed_address (bt_entry_addr
+ + i * data_ptr_type->length,
+ data_ptr_type);
+ bt_entry[0] = (uint64_t) lower;
+ bt_entry[1] = ~(uint64_t) upper;
+
+ for (i = 0; i < 2; i++)
+ write_memory_unsigned_integer (bt_entry_addr + i * data_ptr_type->length,
+ data_ptr_type->length, byte_order,
+ bt_entry[i]);
+}
+
+static struct cmd_list_element *mpx_set_cmdlist, *mpx_show_cmdlist;
+
+/* Helper function for the CLI commands. */
+
+static void
+set_mpx_cmd (char *args, int from_tty)
+{
+ help_list (mpx_set_cmdlist, "set mpx ", all_commands, gdb_stdout);
+}
+
+/* Helper function for the CLI commands. */
+
+static void
+show_mpx_cmd (char *args, int from_tty)
+{
+ cmd_show_list (mpx_show_cmdlist, from_tty, "");
+}
+
/* Provide a prototype to silence -Wmissing-prototypes. */
void _initialize_i386_tdep (void);
NULL, /* FIXME: i18n: */
&setlist, &showlist);
+ /* Add "mpx" prefix for the set commands. */
+
+ add_prefix_cmd ("mpx", class_support, set_mpx_cmd, _("\
+Set Intel(R) Memory Protection Extensions specific variables."),
+ &mpx_set_cmdlist, "set mpx ",
+ 0 /* allow-unknown */, &setlist);
+
+ /* Add "mpx" prefix for the show commands. */
+
+ add_prefix_cmd ("mpx", class_support, show_mpx_cmd, _("\
+Show Intel(R) Memory Protection Extensions specific variables."),
+ &mpx_show_cmdlist, "show mpx ",
+ 0 /* allow-unknown */, &showlist);
+
+ /* Add "bound" command for the show mpx commands list. */
+
+ add_cmd ("bound", no_class, i386_mpx_info_bounds,
+ "Show the memory bounds for a given array/pointer storage\
+ in the bound table.",
+ &mpx_show_cmdlist);
+
+ /* Add "bound" command for the set mpx commands list. */
+
+ add_cmd ("bound", no_class, i386_mpx_set_bounds,
+ "Set the memory bounds for a given array/pointer storage\
+ in the bound table.",
+ &mpx_set_cmdlist);
+
gdbarch_register_osabi_sniffer (bfd_arch_i386, bfd_target_coff_flavour,
i386_coff_osabi_sniffer);
projects / deliverable / binutils-gdb.git / blobdiff