+ gdb_assert (gdbarch == get_frame_arch (frame));
+
+ fctrl_p = read_frame_register_unsigned (frame,
+ I387_FCTRL_REGNUM (tdep), &fctrl);
+ fstat_p = read_frame_register_unsigned (frame,
+ I387_FSTAT_REGNUM (tdep), &fstat);
+ ftag_p = read_frame_register_unsigned (frame,
+ I387_FTAG_REGNUM (tdep), &ftag);
+ fiseg_p = read_frame_register_unsigned (frame,
+ I387_FISEG_REGNUM (tdep), &fiseg);
+ fioff_p = read_frame_register_unsigned (frame,
+ I387_FIOFF_REGNUM (tdep), &fioff);
+ foseg_p = read_frame_register_unsigned (frame,
+ I387_FOSEG_REGNUM (tdep), &foseg);
+ fooff_p = read_frame_register_unsigned (frame,
+ I387_FOOFF_REGNUM (tdep), &fooff);
+ fop_p = read_frame_register_unsigned (frame,
+ I387_FOP_REGNUM (tdep), &fop);
+
+ if (fstat_p)
+ {
+ top = ((fstat >> 11) & 7);
+
+ for (fpreg = 7; fpreg >= 0; fpreg--)
+ {
+ struct value *regval;
+ int regnum;
+ int i;
+ int tag = -1;
+
+ fprintf_filtered (file, "%sR%d: ", fpreg == top ? "=>" : " ", fpreg);
+
+ if (ftag_p)
+ {
+ tag = (ftag >> (fpreg * 2)) & 3;
+
+ switch (tag)
+ {
+ case 0:
+ fputs_filtered ("Valid ", file);
+ break;
+ case 1:
+ fputs_filtered ("Zero ", file);
+ break;
+ case 2:
+ fputs_filtered ("Special ", file);
+ break;
+ case 3:
+ fputs_filtered ("Empty ", file);
+ break;
+ }
+ }
+ else
+ fputs_filtered ("Unknown ", file);
+
+ regnum = (fpreg + 8 - top) % 8 + I387_ST0_REGNUM (tdep);
+ regval = get_frame_register_value (frame, regnum);
+
+ if (value_entirely_available (regval))
+ {
+ const gdb_byte *raw = value_contents (regval);
+
+ fputs_filtered ("0x", file);
+ for (i = 9; i >= 0; i--)
+ fprintf_filtered (file, "%02x", raw[i]);
+
+ if (tag != -1 && tag != 3)
+ print_i387_ext (gdbarch, raw, file);
+ }
+ else
+ fprintf_filtered (file, "%s", _("<unavailable>"));
+
+ fputs_filtered ("\n", file);
+ }
+ }
+
+ fputs_filtered ("\n", file);
+ print_i387_status_word (fstat_p, fstat, file);
+ print_i387_control_word (fctrl_p, fctrl, file);
+ fprintf_filtered (file, "Tag Word: %s\n",
+ ftag_p ? hex_string_custom (ftag, 4) : _("<unavailable>"));
+ fprintf_filtered (file, "Instruction Pointer: %s:",
+ fiseg_p ? hex_string_custom (fiseg, 2) : _("<unavailable>"));
+ fprintf_filtered (file, "%s\n",
+ fioff_p ? hex_string_custom (fioff, 8) : _("<unavailable>"));
+ fprintf_filtered (file, "Operand Pointer: %s:",
+ foseg_p ? hex_string_custom (foseg, 2) : _("<unavailable>"));
+ fprintf_filtered (file, "%s\n",
+ fooff_p ? hex_string_custom (fooff, 8) : _("<unavailable>"));
+ fprintf_filtered (file, "Opcode: %s\n",
+ fop_p
+ ? (hex_string_custom (fop ? (fop | 0xd800) : 0, 4))
+ : _("<unavailable>"));
+}
+\f
+
+/* Return nonzero if a value of type TYPE stored in register REGNUM
+ needs any special handling. */
+
+int
+i387_convert_register_p (struct gdbarch *gdbarch, int regnum,
+ struct type *type)
+{
+ if (i386_fp_regnum_p (gdbarch, regnum))
+ {
+ /* Floating point registers must be converted unless we are
+ accessing them in their hardware type or TYPE is not float. */
+ if (type == i387_ext_type (gdbarch)
+ || TYPE_CODE (type) != TYPE_CODE_FLT)
+ return 0;
+ else
+ return 1;
+ }
+
+ return 0;
+}
+
+/* Read a value of type TYPE from register REGNUM in frame FRAME, and
+ return its contents in TO. */
+
+int
+i387_register_to_value (struct frame_info *frame, int regnum,
+ struct type *type, gdb_byte *to,
+ int *optimizedp, int *unavailablep)
+{
+ struct gdbarch *gdbarch = get_frame_arch (frame);
+ gdb_byte from[I386_MAX_REGISTER_SIZE];
+
+ gdb_assert (i386_fp_regnum_p (gdbarch, regnum));
+
+ /* We only support floating-point values. */
+ if (TYPE_CODE (type) != TYPE_CODE_FLT)
+ {
+ warning (_("Cannot convert floating-point register value "
+ "to non-floating-point type."));
+ *optimizedp = *unavailablep = 0;
+ return 0;
+ }
+
+ /* Convert to TYPE. */
+ if (!get_frame_register_bytes (frame, regnum, 0,
+ register_size (gdbarch, regnum),
+ from, optimizedp, unavailablep))
+ return 0;
+
+ convert_typed_floating (from, i387_ext_type (gdbarch), to, type);
+ *optimizedp = *unavailablep = 0;
+ return 1;
+}
+
+/* Write the contents FROM of a value of type TYPE into register
+ REGNUM in frame FRAME. */
+
+void
+i387_value_to_register (struct frame_info *frame, int regnum,
+ struct type *type, const gdb_byte *from)
+{
+ struct gdbarch *gdbarch = get_frame_arch (frame);
+ gdb_byte to[I386_MAX_REGISTER_SIZE];
+
+ gdb_assert (i386_fp_regnum_p (gdbarch, regnum));
+
+ /* We only support floating-point values. */
+ if (TYPE_CODE (type) != TYPE_CODE_FLT)
+ {
+ warning (_("Cannot convert non-floating-point type "
+ "to floating-point register value."));
+ return;
+ }
+
+ /* Convert from TYPE. */
+ convert_typed_floating (from, type, to, i387_ext_type (gdbarch));
+ put_frame_register (frame, regnum, to);
+}
+\f
+
+/* Handle FSAVE and FXSAVE formats. */
+
+/* At fsave_offset[REGNUM] you'll find the offset to the location in
+ the data structure used by the "fsave" instruction where GDB
+ register REGNUM is stored. */
+
+static int fsave_offset[] =
+{
+ 28 + 0 * 10, /* %st(0) ... */
+ 28 + 1 * 10,
+ 28 + 2 * 10,
+ 28 + 3 * 10,
+ 28 + 4 * 10,
+ 28 + 5 * 10,
+ 28 + 6 * 10,
+ 28 + 7 * 10, /* ... %st(7). */
+ 0, /* `fctrl' (16 bits). */
+ 4, /* `fstat' (16 bits). */
+ 8, /* `ftag' (16 bits). */
+ 16, /* `fiseg' (16 bits). */
+ 12, /* `fioff'. */
+ 24, /* `foseg' (16 bits). */
+ 20, /* `fooff'. */
+ 18 /* `fop' (bottom 11 bits). */
+};
+
+#define FSAVE_ADDR(tdep, fsave, regnum) \
+ (fsave + fsave_offset[regnum - I387_ST0_REGNUM (tdep)])
+\f
+
+/* Fill register REGNUM in REGCACHE with the appropriate value from
+ *FSAVE. This function masks off any of the reserved bits in
+ *FSAVE. */
+
+void
+i387_supply_fsave (struct regcache *regcache, int regnum, const void *fsave)
+{
+ struct gdbarch *gdbarch = get_regcache_arch (regcache);
+ struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
+ enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
+ const gdb_byte *regs = (const gdb_byte *) fsave;
+ int i;
+
+ gdb_assert (tdep->st0_regnum >= I386_ST0_REGNUM);
+
+ for (i = I387_ST0_REGNUM (tdep); i < I387_XMM0_REGNUM (tdep); i++)
+ if (regnum == -1 || regnum == i)
+ {
+ if (fsave == NULL)
+ {
+ regcache_raw_supply (regcache, i, NULL);
+ continue;
+ }
+
+ /* Most of the FPU control registers occupy only 16 bits in the
+ fsave area. Give those a special treatment. */
+ if (i >= I387_FCTRL_REGNUM (tdep)
+ && i != I387_FIOFF_REGNUM (tdep) && i != I387_FOOFF_REGNUM (tdep))
+ {
+ gdb_byte val[4];
+
+ memcpy (val, FSAVE_ADDR (tdep, regs, i), 2);
+ val[2] = val[3] = 0;
+ if (i == I387_FOP_REGNUM (tdep))
+ val[1] &= ((1 << 3) - 1);
+ regcache_raw_supply (regcache, i, val);
+ }
+ else
+ regcache_raw_supply (regcache, i, FSAVE_ADDR (tdep, regs, i));
+ }
+
+ /* Provide dummy values for the SSE registers. */
+ for (i = I387_XMM0_REGNUM (tdep); i < I387_MXCSR_REGNUM (tdep); i++)
+ if (regnum == -1 || regnum == i)
+ regcache_raw_supply (regcache, i, NULL);
+ if (regnum == -1 || regnum == I387_MXCSR_REGNUM (tdep))
+ {
+ gdb_byte buf[4];
+
+ store_unsigned_integer (buf, 4, byte_order, 0x1f80);
+ regcache_raw_supply (regcache, I387_MXCSR_REGNUM (tdep), buf);
+ }
+}
+
+/* Fill register REGNUM (if it is a floating-point register) in *FSAVE
+ with the value from REGCACHE. If REGNUM is -1, do this for all
+ registers. This function doesn't touch any of the reserved bits in
+ *FSAVE. */
+
+void
+i387_collect_fsave (const struct regcache *regcache, int regnum, void *fsave)
+{
+ struct gdbarch_tdep *tdep = gdbarch_tdep (get_regcache_arch (regcache));
+ gdb_byte *regs = (gdb_byte *) fsave;
+ int i;
+
+ gdb_assert (tdep->st0_regnum >= I386_ST0_REGNUM);
+
+ for (i = I387_ST0_REGNUM (tdep); i < I387_XMM0_REGNUM (tdep); i++)
+ if (regnum == -1 || regnum == i)
+ {
+ /* Most of the FPU control registers occupy only 16 bits in
+ the fsave area. Give those a special treatment. */
+ if (i >= I387_FCTRL_REGNUM (tdep)
+ && i != I387_FIOFF_REGNUM (tdep) && i != I387_FOOFF_REGNUM (tdep))
+ {
+ gdb_byte buf[4];
+
+ regcache_raw_collect (regcache, i, buf);
+
+ if (i == I387_FOP_REGNUM (tdep))
+ {
+ /* The opcode occupies only 11 bits. Make sure we
+ don't touch the other bits. */
+ buf[1] &= ((1 << 3) - 1);
+ buf[1] |= ((FSAVE_ADDR (tdep, regs, i))[1] & ~((1 << 3) - 1));
+ }
+ memcpy (FSAVE_ADDR (tdep, regs, i), buf, 2);
+ }
+ else
+ regcache_raw_collect (regcache, i, FSAVE_ADDR (tdep, regs, i));
+ }
+}
+\f
+
+/* At fxsave_offset[REGNUM] you'll find the offset to the location in
+ the data structure used by the "fxsave" instruction where GDB
+ register REGNUM is stored. */
+
+static int fxsave_offset[] =
+{
+ 32, /* %st(0) through ... */
+ 48,
+ 64,
+ 80,
+ 96,
+ 112,
+ 128,
+ 144, /* ... %st(7) (80 bits each). */
+ 0, /* `fctrl' (16 bits). */
+ 2, /* `fstat' (16 bits). */
+ 4, /* `ftag' (16 bits). */
+ 12, /* `fiseg' (16 bits). */
+ 8, /* `fioff'. */
+ 20, /* `foseg' (16 bits). */
+ 16, /* `fooff'. */
+ 6, /* `fop' (bottom 11 bits). */
+ 160 + 0 * 16, /* %xmm0 through ... */
+ 160 + 1 * 16,
+ 160 + 2 * 16,
+ 160 + 3 * 16,
+ 160 + 4 * 16,
+ 160 + 5 * 16,
+ 160 + 6 * 16,
+ 160 + 7 * 16,
+ 160 + 8 * 16,
+ 160 + 9 * 16,
+ 160 + 10 * 16,
+ 160 + 11 * 16,
+ 160 + 12 * 16,
+ 160 + 13 * 16,
+ 160 + 14 * 16,
+ 160 + 15 * 16, /* ... %xmm15 (128 bits each). */
+};
+
+#define FXSAVE_ADDR(tdep, fxsave, regnum) \
+ (fxsave + fxsave_offset[regnum - I387_ST0_REGNUM (tdep)])
+
+/* We made an unfortunate choice in putting %mxcsr after the SSE
+ registers %xmm0-%xmm7 instead of before, since it makes supporting
+ the registers %xmm8-%xmm15 on AMD64 a bit involved. Therefore we
+ don't include the offset for %mxcsr here above. */
+
+#define FXSAVE_MXCSR_ADDR(fxsave) (fxsave + 24)
+
+static int i387_tag (const gdb_byte *raw);
+\f
+
+/* Fill register REGNUM in REGCACHE with the appropriate
+ floating-point or SSE register value from *FXSAVE. This function
+ masks off any of the reserved bits in *FXSAVE. */
+
+void
+i387_supply_fxsave (struct regcache *regcache, int regnum, const void *fxsave)
+{
+ struct gdbarch_tdep *tdep = gdbarch_tdep (get_regcache_arch (regcache));
+ const gdb_byte *regs = (const gdb_byte *) fxsave;
+ int i;
+
+ gdb_assert (tdep->st0_regnum >= I386_ST0_REGNUM);
+ gdb_assert (tdep->num_xmm_regs > 0);
+
+ for (i = I387_ST0_REGNUM (tdep); i < I387_MXCSR_REGNUM (tdep); i++)
+ if (regnum == -1 || regnum == i)
+ {
+ if (regs == NULL)
+ {
+ regcache_raw_supply (regcache, i, NULL);
+ continue;
+ }
+
+ /* Most of the FPU control registers occupy only 16 bits in
+ the fxsave area. Give those a special treatment. */
+ if (i >= I387_FCTRL_REGNUM (tdep) && i < I387_XMM0_REGNUM (tdep)
+ && i != I387_FIOFF_REGNUM (tdep) && i != I387_FOOFF_REGNUM (tdep))
+ {
+ gdb_byte val[4];
+
+ memcpy (val, FXSAVE_ADDR (tdep, regs, i), 2);
+ val[2] = val[3] = 0;
+ if (i == I387_FOP_REGNUM (tdep))
+ val[1] &= ((1 << 3) - 1);
+ else if (i== I387_FTAG_REGNUM (tdep))
+ {
+ /* The fxsave area contains a simplified version of
+ the tag word. We have to look at the actual 80-bit
+ FP data to recreate the traditional i387 tag word. */
+
+ unsigned long ftag = 0;
+ int fpreg;
+ int top;
+
+ top = ((FXSAVE_ADDR (tdep, regs,
+ I387_FSTAT_REGNUM (tdep)))[1] >> 3);
+ top &= 0x7;
+
+ for (fpreg = 7; fpreg >= 0; fpreg--)
+ {
+ int tag;
+
+ if (val[0] & (1 << fpreg))
+ {
+ int thisreg = (fpreg + 8 - top) % 8
+ + I387_ST0_REGNUM (tdep);
+ tag = i387_tag (FXSAVE_ADDR (tdep, regs, thisreg));
+ }
+ else
+ tag = 3; /* Empty */
+
+ ftag |= tag << (2 * fpreg);
+ }
+ val[0] = ftag & 0xff;
+ val[1] = (ftag >> 8) & 0xff;
+ }
+ regcache_raw_supply (regcache, i, val);
+ }
+ else
+ regcache_raw_supply (regcache, i, FXSAVE_ADDR (tdep, regs, i));
+ }
+
+ if (regnum == I387_MXCSR_REGNUM (tdep) || regnum == -1)
+ {
+ if (regs == NULL)
+ regcache_raw_supply (regcache, I387_MXCSR_REGNUM (tdep), NULL);
+ else
+ regcache_raw_supply (regcache, I387_MXCSR_REGNUM (tdep),
+ FXSAVE_MXCSR_ADDR (regs));
+ }
+}
+
+/* Fill register REGNUM (if it is a floating-point or SSE register) in
+ *FXSAVE with the value from REGCACHE. If REGNUM is -1, do this for
+ all registers. This function doesn't touch any of the reserved
+ bits in *FXSAVE. */
+
+void
+i387_collect_fxsave (const struct regcache *regcache, int regnum, void *fxsave)
+{
+ struct gdbarch_tdep *tdep = gdbarch_tdep (get_regcache_arch (regcache));
+ gdb_byte *regs = (gdb_byte *) fxsave;
+ int i;
+
+ gdb_assert (tdep->st0_regnum >= I386_ST0_REGNUM);
+ gdb_assert (tdep->num_xmm_regs > 0);
+
+ for (i = I387_ST0_REGNUM (tdep); i < I387_MXCSR_REGNUM (tdep); i++)
+ if (regnum == -1 || regnum == i)
+ {
+ /* Most of the FPU control registers occupy only 16 bits in
+ the fxsave area. Give those a special treatment. */
+ if (i >= I387_FCTRL_REGNUM (tdep) && i < I387_XMM0_REGNUM (tdep)
+ && i != I387_FIOFF_REGNUM (tdep) && i != I387_FOOFF_REGNUM (tdep))
+ {
+ gdb_byte buf[4];
+
+ regcache_raw_collect (regcache, i, buf);
+
+ if (i == I387_FOP_REGNUM (tdep))
+ {
+ /* The opcode occupies only 11 bits. Make sure we
+ don't touch the other bits. */
+ buf[1] &= ((1 << 3) - 1);
+ buf[1] |= ((FXSAVE_ADDR (tdep, regs, i))[1] & ~((1 << 3) - 1));
+ }
+ else if (i == I387_FTAG_REGNUM (tdep))
+ {
+ /* Converting back is much easier. */
+
+ unsigned short ftag;
+ int fpreg;
+
+ ftag = (buf[1] << 8) | buf[0];
+ buf[0] = 0;
+ buf[1] = 0;
+
+ for (fpreg = 7; fpreg >= 0; fpreg--)
+ {
+ int tag = (ftag >> (fpreg * 2)) & 3;
+
+ if (tag != 3)
+ buf[0] |= (1 << fpreg);
+ }
+ }
+ memcpy (FXSAVE_ADDR (tdep, regs, i), buf, 2);
+ }
+ else
+ regcache_raw_collect (regcache, i, FXSAVE_ADDR (tdep, regs, i));
+ }
+
+ if (regnum == I387_MXCSR_REGNUM (tdep) || regnum == -1)
+ regcache_raw_collect (regcache, I387_MXCSR_REGNUM (tdep),
+ FXSAVE_MXCSR_ADDR (regs));
+}
+
+/* `xstate_bv' is at byte offset 512. */
+#define XSAVE_XSTATE_BV_ADDR(xsave) (xsave + 512)
+
+/* At xsave_avxh_offset[REGNUM] you'll find the offset to the location in
+ the upper 128bit of AVX register data structure used by the "xsave"
+ instruction where GDB register REGNUM is stored. */
+
+static int xsave_avxh_offset[] =
+{
+ 576 + 0 * 16, /* Upper 128bit of %ymm0 through ... */
+ 576 + 1 * 16,
+ 576 + 2 * 16,
+ 576 + 3 * 16,
+ 576 + 4 * 16,
+ 576 + 5 * 16,
+ 576 + 6 * 16,
+ 576 + 7 * 16,
+ 576 + 8 * 16,
+ 576 + 9 * 16,
+ 576 + 10 * 16,
+ 576 + 11 * 16,
+ 576 + 12 * 16,
+ 576 + 13 * 16,
+ 576 + 14 * 16,
+ 576 + 15 * 16 /* Upper 128bit of ... %ymm15 (128 bits each). */
+};
+
+#define XSAVE_AVXH_ADDR(tdep, xsave, regnum) \
+ (xsave + xsave_avxh_offset[regnum - I387_YMM0H_REGNUM (tdep)])
+
+/* At xsave_ymm_avx512_offset[REGNUM] you'll find the offset to the location in
+ the upper 128bit of ZMM register data structure used by the "xsave"
+ instruction where GDB register REGNUM is stored. */
+
+static int xsave_ymm_avx512_offset[] =
+{
+ /* HI16_ZMM_area + 16 bytes + regnum* 64 bytes. */
+ 1664 + 16 + 0 * 64, /* %ymm16 through... */
+ 1664 + 16 + 1 * 64,
+ 1664 + 16 + 2 * 64,
+ 1664 + 16 + 3 * 64,
+ 1664 + 16 + 4 * 64,
+ 1664 + 16 + 5 * 64,
+ 1664 + 16 + 6 * 64,
+ 1664 + 16 + 7 * 64,
+ 1664 + 16 + 8 * 64,
+ 1664 + 16 + 9 * 64,
+ 1664 + 16 + 10 * 64,
+ 1664 + 16 + 11 * 64,
+ 1664 + 16 + 12 * 64,
+ 1664 + 16 + 13 * 64,
+ 1664 + 16 + 14 * 64,
+ 1664 + 16 + 15 * 64 /* ... %ymm31 (128 bits each). */
+};
+
+#define XSAVE_YMM_AVX512_ADDR(tdep, xsave, regnum) \
+ (xsave + xsave_ymm_avx512_offset[regnum - I387_YMM16H_REGNUM (tdep)])
+
+static int xsave_xmm_avx512_offset[] =
+{
+ 1664 + 0 * 64, /* %ymm16 through... */
+ 1664 + 1 * 64,
+ 1664 + 2 * 64,
+ 1664 + 3 * 64,
+ 1664 + 4 * 64,
+ 1664 + 5 * 64,
+ 1664 + 6 * 64,
+ 1664 + 7 * 64,
+ 1664 + 8 * 64,
+ 1664 + 9 * 64,
+ 1664 + 10 * 64,
+ 1664 + 11 * 64,
+ 1664 + 12 * 64,
+ 1664 + 13 * 64,
+ 1664 + 14 * 64,
+ 1664 + 15 * 64 /* ... %ymm31 (128 bits each). */
+};
+
+#define XSAVE_XMM_AVX512_ADDR(tdep, xsave, regnum) \
+ (xsave + xsave_xmm_avx512_offset[regnum - I387_XMM16_REGNUM (tdep)])
+
+static int xsave_mpx_offset[] = {
+ 960 + 0 * 16, /* bnd0r...bnd3r registers. */
+ 960 + 1 * 16,
+ 960 + 2 * 16,
+ 960 + 3 * 16,
+ 1024 + 0 * 8, /* bndcfg ... bndstatus. */
+ 1024 + 1 * 8,
+};
+
+#define XSAVE_MPX_ADDR(tdep, xsave, regnum) \
+ (xsave + xsave_mpx_offset[regnum - I387_BND0R_REGNUM (tdep)])
+
+ /* At xsave_avx512__h_offset[REGNUM] you find the offset to the location
+ of the AVX512 opmask register data structure used by the "xsave"
+ instruction where GDB register REGNUM is stored. */
+
+static int xsave_avx512_k_offset[] =
+{
+ 1088 + 0 * 8, /* %k0 through... */
+ 1088 + 1 * 8,
+ 1088 + 2 * 8,
+ 1088 + 3 * 8,
+ 1088 + 4 * 8,
+ 1088 + 5 * 8,
+ 1088 + 6 * 8,
+ 1088 + 7 * 8 /* %k7 (64 bits each). */
+};
+
+#define XSAVE_AVX512_K_ADDR(tdep, xsave, regnum) \
+ (xsave + xsave_avx512_k_offset[regnum - I387_K0_REGNUM (tdep)])
+
+/* At xsave_avx512_zmm_h_offset[REGNUM] you find the offset to the location in
+ the upper 256bit of AVX512 ZMMH register data structure used by the "xsave"
+ instruction where GDB register REGNUM is stored. */
+
+static int xsave_avx512_zmm_h_offset[] =
+{
+ 1152 + 0 * 32,
+ 1152 + 1 * 32, /* Upper 256bit of %zmmh0 through... */
+ 1152 + 2 * 32,
+ 1152 + 3 * 32,
+ 1152 + 4 * 32,
+ 1152 + 5 * 32,
+ 1152 + 6 * 32,
+ 1152 + 7 * 32,
+ 1152 + 8 * 32,
+ 1152 + 9 * 32,
+ 1152 + 10 * 32,
+ 1152 + 11 * 32,
+ 1152 + 12 * 32,
+ 1152 + 13 * 32,
+ 1152 + 14 * 32,
+ 1152 + 15 * 32, /* Upper 256bit of... %zmmh15 (256 bits each). */
+ 1664 + 32 + 0 * 64, /* Upper 256bit of... %zmmh16 (256 bits each). */
+ 1664 + 32 + 1 * 64,
+ 1664 + 32 + 2 * 64,
+ 1664 + 32 + 3 * 64,
+ 1664 + 32 + 4 * 64,
+ 1664 + 32 + 5 * 64,
+ 1664 + 32 + 6 * 64,
+ 1664 + 32 + 7 * 64,
+ 1664 + 32 + 8 * 64,
+ 1664 + 32 + 9 * 64,
+ 1664 + 32 + 10 * 64,
+ 1664 + 32 + 11 * 64,
+ 1664 + 32 + 12 * 64,
+ 1664 + 32 + 13 * 64,
+ 1664 + 32 + 14 * 64,
+ 1664 + 32 + 15 * 64 /* Upper 256bit of... %zmmh31 (256 bits each). */
+};
+
+#define XSAVE_AVX512_ZMM_H_ADDR(tdep, xsave, regnum) \
+ (xsave + xsave_avx512_zmm_h_offset[regnum - I387_ZMM0H_REGNUM (tdep)])
+
+/* At xsave_pkeys_offset[REGNUM] you find the offset to the location
+ of the PKRU register data structure used by the "xsave"
+ instruction where GDB register REGNUM is stored. */
+
+static int xsave_pkeys_offset[] =
+{
+2688 + 0 * 8 /* %pkru (64 bits in XSTATE, 32-bit actually used by
+ instructions and applications). */
+};
+
+#define XSAVE_PKEYS_ADDR(tdep, xsave, regnum) \
+ (xsave + xsave_pkeys_offset[regnum - I387_PKRU_REGNUM (tdep)])
+
+/* Similar to i387_supply_fxsave, but use XSAVE extended state. */
+
+void
+i387_supply_xsave (struct regcache *regcache, int regnum,
+ const void *xsave)
+{
+ struct gdbarch *gdbarch = get_regcache_arch (regcache);
+ struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
+ const gdb_byte *regs = (const gdb_byte *) xsave;
+ int i;
+ ULONGEST clear_bv;
+ static const gdb_byte zero[I386_MAX_REGISTER_SIZE] = { 0 };
+ enum
+ {
+ none = 0x0,
+ x87 = 0x1,
+ sse = 0x2,
+ avxh = 0x4,
+ mpx = 0x8,
+ avx512_k = 0x10,
+ avx512_zmm_h = 0x20,
+ avx512_ymmh_avx512 = 0x40,
+ avx512_xmm_avx512 = 0x80,
+ pkeys = 0x100,
+ all = x87 | sse | avxh | mpx | avx512_k | avx512_zmm_h
+ | avx512_ymmh_avx512 | avx512_xmm_avx512 | pkeys
+ } regclass;
+
+ gdb_assert (regs != NULL);
+ gdb_assert (tdep->st0_regnum >= I386_ST0_REGNUM);
+ gdb_assert (tdep->num_xmm_regs > 0);
+
+ if (regnum == -1)
+ regclass = all;
+ else if (regnum >= I387_PKRU_REGNUM (tdep)
+ && regnum < I387_PKEYSEND_REGNUM (tdep))
+ regclass = pkeys;
+ else if (regnum >= I387_ZMM0H_REGNUM (tdep)
+ && regnum < I387_ZMMENDH_REGNUM (tdep))
+ regclass = avx512_zmm_h;
+ else if (regnum >= I387_K0_REGNUM (tdep)
+ && regnum < I387_KEND_REGNUM (tdep))
+ regclass = avx512_k;
+ else if (regnum >= I387_YMM16H_REGNUM (tdep)
+ && regnum < I387_YMMH_AVX512_END_REGNUM (tdep))
+ regclass = avx512_ymmh_avx512;
+ else if (regnum >= I387_XMM16_REGNUM (tdep)
+ && regnum < I387_XMM_AVX512_END_REGNUM (tdep))
+ regclass = avx512_xmm_avx512;
+ else if (regnum >= I387_YMM0H_REGNUM (tdep)
+ && regnum < I387_YMMENDH_REGNUM (tdep))
+ regclass = avxh;
+ else if (regnum >= I387_BND0R_REGNUM (tdep)
+ && regnum < I387_MPXEND_REGNUM (tdep))
+ regclass = mpx;
+ else if (regnum >= I387_XMM0_REGNUM (tdep)
+ && regnum < I387_MXCSR_REGNUM (tdep))
+ regclass = sse;
+ else if (regnum >= I387_ST0_REGNUM (tdep)
+ && regnum < I387_FCTRL_REGNUM (tdep))
+ regclass = x87;
+ else
+ regclass = none;
+
+ if (regclass != none)
+ {
+ /* Get `xstat_bv'. The supported bits in `xstat_bv' are 8 bytes. */
+ enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
+ ULONGEST xstate_bv = 0;
+
+ xstate_bv = extract_unsigned_integer (XSAVE_XSTATE_BV_ADDR (regs),
+ 8, byte_order);
+
+ /* Clear part in vector registers if its bit in xstat_bv is zero. */
+ clear_bv = (~(xstate_bv)) & tdep->xcr0;
+ }
+ else
+ clear_bv = X86_XSTATE_ALL_MASK;
+
+ /* With the delayed xsave mechanism, in between the program
+ starting, and the program accessing the vector registers for the
+ first time, the register's values are invalid. The kernel
+ initializes register states to zero when they are set the first
+ time in a program. This means that from the user-space programs'
+ perspective, it's the same as if the registers have always been
+ zero from the start of the program. Therefore, the debugger
+ should provide the same illusion to the user. */
+
+ switch (regclass)
+ {
+ case none:
+ break;
+
+ case pkeys:
+ if ((clear_bv & X86_XSTATE_PKRU))
+ regcache_raw_supply (regcache, regnum, zero);
+ else
+ regcache_raw_supply (regcache, regnum,
+ XSAVE_PKEYS_ADDR (tdep, regs, regnum));
+ return;
+
+ case avx512_zmm_h:
+ if ((clear_bv & (X86_XSTATE_ZMM_H | X86_XSTATE_ZMM)))
+ regcache_raw_supply (regcache, regnum, zero);
+ else
+ regcache_raw_supply (regcache, regnum,
+ XSAVE_AVX512_ZMM_H_ADDR (tdep, regs, regnum));
+ return;
+
+ case avx512_k:
+ if ((clear_bv & X86_XSTATE_K))
+ regcache_raw_supply (regcache, regnum, zero);
+ else
+ regcache_raw_supply (regcache, regnum,
+ XSAVE_AVX512_K_ADDR (tdep, regs, regnum));
+ return;
+
+ case avx512_ymmh_avx512:
+ if ((clear_bv & X86_XSTATE_ZMM))
+ regcache_raw_supply (regcache, regnum, zero);
+ else
+ regcache_raw_supply (regcache, regnum,
+ XSAVE_YMM_AVX512_ADDR (tdep, regs, regnum));
+ return;
+
+ case avx512_xmm_avx512:
+ if ((clear_bv & X86_XSTATE_ZMM))
+ regcache_raw_supply (regcache, regnum, zero);
+ else
+ regcache_raw_supply (regcache, regnum,
+ XSAVE_XMM_AVX512_ADDR (tdep, regs, regnum));
+ return;
+
+ case avxh:
+ if ((clear_bv & X86_XSTATE_AVX))
+ regcache_raw_supply (regcache, regnum, zero);
+ else
+ regcache_raw_supply (regcache, regnum,
+ XSAVE_AVXH_ADDR (tdep, regs, regnum));
+ return;
+
+ case mpx:
+ if ((clear_bv & X86_XSTATE_BNDREGS))
+ regcache_raw_supply (regcache, regnum, zero);
+ else
+ regcache_raw_supply (regcache, regnum,
+ XSAVE_MPX_ADDR (tdep, regs, regnum));
+ return;
+
+ case sse:
+ if ((clear_bv & X86_XSTATE_SSE))
+ regcache_raw_supply (regcache, regnum, zero);
+ else
+ regcache_raw_supply (regcache, regnum,
+ FXSAVE_ADDR (tdep, regs, regnum));
+ return;
+
+ case x87:
+ if ((clear_bv & X86_XSTATE_X87))
+ regcache_raw_supply (regcache, regnum, zero);
+ else
+ regcache_raw_supply (regcache, regnum,
+ FXSAVE_ADDR (tdep, regs, regnum));
+ return;
+
+ case all:
+ /* Handle PKEYS registers. */
+ if ((tdep->xcr0 & X86_XSTATE_PKRU))
+ {
+ if ((clear_bv & X86_XSTATE_PKRU))
+ {
+ for (i = I387_PKRU_REGNUM (tdep);
+ i < I387_PKEYSEND_REGNUM (tdep);
+ i++)
+ regcache_raw_supply (regcache, i, zero);
+ }
+ else
+ {
+ for (i = I387_PKRU_REGNUM (tdep);
+ i < I387_PKEYSEND_REGNUM (tdep);
+ i++)
+ regcache_raw_supply (regcache, i,
+ XSAVE_PKEYS_ADDR (tdep, regs, i));
+ }
+ }
+
+ /* Handle the upper ZMM registers. */
+ if ((tdep->xcr0 & (X86_XSTATE_ZMM_H | X86_XSTATE_ZMM)))
+ {
+ if ((clear_bv & (X86_XSTATE_ZMM_H | X86_XSTATE_ZMM)))
+ {
+ for (i = I387_ZMM0H_REGNUM (tdep);
+ i < I387_ZMMENDH_REGNUM (tdep);
+ i++)
+ regcache_raw_supply (regcache, i, zero);
+ }
+ else
+ {
+ for (i = I387_ZMM0H_REGNUM (tdep);
+ i < I387_ZMMENDH_REGNUM (tdep);
+ i++)
+ regcache_raw_supply (regcache, i,
+ XSAVE_AVX512_ZMM_H_ADDR (tdep, regs, i));
+ }
+ }
+
+ /* Handle AVX512 OpMask registers. */
+ if ((tdep->xcr0 & X86_XSTATE_K))
+ {
+ if ((clear_bv & X86_XSTATE_K))
+ {
+ for (i = I387_K0_REGNUM (tdep);
+ i < I387_KEND_REGNUM (tdep);
+ i++)
+ regcache_raw_supply (regcache, i, zero);
+ }
+ else
+ {
+ for (i = I387_K0_REGNUM (tdep);
+ i < I387_KEND_REGNUM (tdep);
+ i++)
+ regcache_raw_supply (regcache, i,
+ XSAVE_AVX512_K_ADDR (tdep, regs, i));
+ }
+ }
+
+ /* Handle the YMM_AVX512 registers. */
+ if ((tdep->xcr0 & X86_XSTATE_ZMM))
+ {
+ if ((clear_bv & X86_XSTATE_ZMM))
+ {
+ for (i = I387_YMM16H_REGNUM (tdep);
+ i < I387_YMMH_AVX512_END_REGNUM (tdep);
+ i++)
+ regcache_raw_supply (regcache, i, zero);
+ for (i = I387_XMM16_REGNUM (tdep);
+ i < I387_XMM_AVX512_END_REGNUM (tdep);
+ i++)
+ regcache_raw_supply (regcache, i, zero);
+ }
+ else
+ {
+ for (i = I387_YMM16H_REGNUM (tdep);
+ i < I387_YMMH_AVX512_END_REGNUM (tdep);
+ i++)
+ regcache_raw_supply (regcache, i,
+ XSAVE_YMM_AVX512_ADDR (tdep, regs, i));
+ for (i = I387_XMM16_REGNUM (tdep);
+ i < I387_XMM_AVX512_END_REGNUM (tdep);
+ i++)
+ regcache_raw_supply (regcache, i,
+ XSAVE_XMM_AVX512_ADDR (tdep, regs, i));
+ }
+ }
+ /* Handle the upper YMM registers. */
+ if ((tdep->xcr0 & X86_XSTATE_AVX))
+ {
+ if ((clear_bv & X86_XSTATE_AVX))
+ {
+ for (i = I387_YMM0H_REGNUM (tdep);
+ i < I387_YMMENDH_REGNUM (tdep);
+ i++)
+ regcache_raw_supply (regcache, i, zero);
+ }
+ else
+ {
+ for (i = I387_YMM0H_REGNUM (tdep);
+ i < I387_YMMENDH_REGNUM (tdep);
+ i++)
+ regcache_raw_supply (regcache, i,
+ XSAVE_AVXH_ADDR (tdep, regs, i));
+ }
+ }
+
+ /* Handle the MPX registers. */
+ if ((tdep->xcr0 & X86_XSTATE_BNDREGS))
+ {
+ if (clear_bv & X86_XSTATE_BNDREGS)
+ {
+ for (i = I387_BND0R_REGNUM (tdep);
+ i < I387_BNDCFGU_REGNUM (tdep); i++)
+ regcache_raw_supply (regcache, i, zero);
+ }
+ else
+ {
+ for (i = I387_BND0R_REGNUM (tdep);
+ i < I387_BNDCFGU_REGNUM (tdep); i++)
+ regcache_raw_supply (regcache, i,
+ XSAVE_MPX_ADDR (tdep, regs, i));
+ }
+ }
+
+ /* Handle the MPX registers. */
+ if ((tdep->xcr0 & X86_XSTATE_BNDCFG))
+ {
+ if (clear_bv & X86_XSTATE_BNDCFG)
+ {
+ for (i = I387_BNDCFGU_REGNUM (tdep);
+ i < I387_MPXEND_REGNUM (tdep); i++)
+ regcache_raw_supply (regcache, i, zero);
+ }
+ else
+ {
+ for (i = I387_BNDCFGU_REGNUM (tdep);
+ i < I387_MPXEND_REGNUM (tdep); i++)
+ regcache_raw_supply (regcache, i,
+ XSAVE_MPX_ADDR (tdep, regs, i));
+ }
+ }
+
+ /* Handle the XMM registers. */
+ if ((tdep->xcr0 & X86_XSTATE_SSE))
+ {
+ if ((clear_bv & X86_XSTATE_SSE))
+ {
+ for (i = I387_XMM0_REGNUM (tdep);
+ i < I387_MXCSR_REGNUM (tdep);
+ i++)
+ regcache_raw_supply (regcache, i, zero);
+ }
+ else
+ {
+ for (i = I387_XMM0_REGNUM (tdep);
+ i < I387_MXCSR_REGNUM (tdep); i++)
+ regcache_raw_supply (regcache, i,
+ FXSAVE_ADDR (tdep, regs, i));
+ }
+ }
+
+ /* Handle the x87 registers. */
+ if ((tdep->xcr0 & X86_XSTATE_X87))
+ {
+ if ((clear_bv & X86_XSTATE_X87))
+ {
+ for (i = I387_ST0_REGNUM (tdep);
+ i < I387_FCTRL_REGNUM (tdep);
+ i++)
+ regcache_raw_supply (regcache, i, zero);
+ }
+ else
+ {
+ for (i = I387_ST0_REGNUM (tdep);
+ i < I387_FCTRL_REGNUM (tdep);
+ i++)
+ regcache_raw_supply (regcache, i, FXSAVE_ADDR (tdep, regs, i));
+ }
+ }
+ break;
+ }
+
+ /* Only handle x87 control registers. */
+ for (i = I387_FCTRL_REGNUM (tdep); i < I387_XMM0_REGNUM (tdep); i++)
+ if (regnum == -1 || regnum == i)
+ {
+ /* Most of the FPU control registers occupy only 16 bits in
+ the xsave extended state. Give those a special treatment. */
+ if (i != I387_FIOFF_REGNUM (tdep)
+ && i != I387_FOOFF_REGNUM (tdep))
+ {
+ gdb_byte val[4];
+
+ memcpy (val, FXSAVE_ADDR (tdep, regs, i), 2);
+ val[2] = val[3] = 0;
+ if (i == I387_FOP_REGNUM (tdep))
+ val[1] &= ((1 << 3) - 1);
+ else if (i== I387_FTAG_REGNUM (tdep))
+ {
+ /* The fxsave area contains a simplified version of
+ the tag word. We have to look at the actual 80-bit
+ FP data to recreate the traditional i387 tag word. */
+
+ unsigned long ftag = 0;
+ int fpreg;
+ int top;
+
+ top = ((FXSAVE_ADDR (tdep, regs,
+ I387_FSTAT_REGNUM (tdep)))[1] >> 3);
+ top &= 0x7;
+
+ for (fpreg = 7; fpreg >= 0; fpreg--)
+ {
+ int tag;
+
+ if (val[0] & (1 << fpreg))
+ {
+ int thisreg = (fpreg + 8 - top) % 8
+ + I387_ST0_REGNUM (tdep);
+ tag = i387_tag (FXSAVE_ADDR (tdep, regs, thisreg));
+ }
+ else
+ tag = 3; /* Empty */
+
+ ftag |= tag << (2 * fpreg);
+ }
+ val[0] = ftag & 0xff;
+ val[1] = (ftag >> 8) & 0xff;
+ }
+ regcache_raw_supply (regcache, i, val);
+ }
+ else
+ regcache_raw_supply (regcache, i, FXSAVE_ADDR (tdep, regs, i));
+ }
+
+ if (regnum == I387_MXCSR_REGNUM (tdep) || regnum == -1)
+ regcache_raw_supply (regcache, I387_MXCSR_REGNUM (tdep),
+ FXSAVE_MXCSR_ADDR (regs));
+}
+
+/* Similar to i387_collect_fxsave, but use XSAVE extended state. */
+
+void
+i387_collect_xsave (const struct regcache *regcache, int regnum,
+ void *xsave, int gcore)
+{
+ struct gdbarch *gdbarch = get_regcache_arch (regcache);
+ struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
+ gdb_byte *regs = (gdb_byte *) xsave;
+ int i;
+ enum