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fc14343205
GDB deprecated the commands "show/set mpx bound" in GDB 15.1, as Intel listed Intel(R) Memory Protection Extensions (MPX) as removed in 2019. MPX is also deprecated in gcc (since v9.1), the linux kernel (since v5.6) and glibc (since v2.35). Let's now remove MPX support in GDB completely. This includes the removal of: - MPX functionality including register support - deprecated mpx commands - i386 and amd64 implementation of the hooks report_signal_info and get_siginfo_type - tests - and pretty printer. We keep MPX register numbers to not break compatibility with old gdbservers. Approved-By: Felix Willgerodt <felix.willgerodt@intel.com>
177 lines
6.5 KiB
C++
177 lines
6.5 KiB
C++
/* Target-dependent code for the i387.
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Copyright (C) 2000-2024 Free Software Foundation, Inc.
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This file is part of GDB.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>. */
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#ifndef I387_TDEP_H
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#define I387_TDEP_H
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struct gdbarch;
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class frame_info_ptr;
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struct regcache;
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struct type;
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struct ui_file;
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struct x86_xsave_layout;
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/* Number of i387 floating point registers. */
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#define I387_NUM_REGS 16
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#define I387_ST0_REGNUM(tdep) ((tdep)->st0_regnum)
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#define I387_NUM_XMM_REGS(tdep) ((tdep)->num_xmm_regs)
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#define I387_NUM_XMM_AVX512_REGS(tdep) ((tdep)->num_xmm_avx512_regs)
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#define I387_MM0_REGNUM(tdep) ((tdep)->mm0_regnum)
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#define I387_NUM_YMM_REGS(tdep) ((tdep)->num_ymm_regs)
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#define I387_YMM0H_REGNUM(tdep) ((tdep)->ymm0h_regnum)
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/* Set of constants used for 32 and 64-bit. */
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#define I387_NUM_K_REGS 8
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#define I387_NUM_PKEYS_REGS 1
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#define I387_PKRU_REGNUM(tdep) ((tdep)->pkru_regnum)
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#define I387_K0_REGNUM(tdep) ((tdep)->k0_regnum)
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#define I387_NUM_ZMMH_REGS(tdep) ((tdep)->num_zmm_regs)
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#define I387_ZMM0H_REGNUM(tdep) ((tdep)->zmm0h_regnum)
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#define I387_ZMM16H_REGNUM(tdep) ((tdep)->zmm0h_regnum + 16)
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#define I387_NUM_YMM_AVX512_REGS(tdep) ((tdep)->num_ymm_avx512_regs)
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#define I387_YMM16H_REGNUM(tdep) ((tdep)->ymm16h_regnum)
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#define I387_FCTRL_REGNUM(tdep) (I387_ST0_REGNUM (tdep) + 8)
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#define I387_FSTAT_REGNUM(tdep) (I387_FCTRL_REGNUM (tdep) + 1)
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#define I387_FTAG_REGNUM(tdep) (I387_FCTRL_REGNUM (tdep) + 2)
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#define I387_FISEG_REGNUM(tdep) (I387_FCTRL_REGNUM (tdep) + 3)
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#define I387_FIOFF_REGNUM(tdep) (I387_FCTRL_REGNUM (tdep) + 4)
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#define I387_FOSEG_REGNUM(tdep) (I387_FCTRL_REGNUM (tdep) + 5)
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#define I387_FOOFF_REGNUM(tdep) (I387_FCTRL_REGNUM (tdep) + 6)
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#define I387_FOP_REGNUM(tdep) (I387_FCTRL_REGNUM (tdep) + 7)
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#define I387_XMM0_REGNUM(tdep) (I387_ST0_REGNUM (tdep) + 16)
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#define I387_XMM16_REGNUM(tdep) ((tdep)->xmm16_regnum)
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#define I387_MXCSR_REGNUM(tdep) \
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(I387_XMM0_REGNUM (tdep) + I387_NUM_XMM_REGS (tdep))
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#define I387_YMM0_REGNUM(tdep) (I387_MXCSR_REGNUM(tdep) + 1)
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#define I387_YMMENDH_REGNUM(tdep) \
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(I387_YMM0H_REGNUM (tdep) + I387_NUM_YMM_REGS (tdep))
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#define I387_KEND_REGNUM(tdep) \
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(I387_K0_REGNUM (tdep) + I387_NUM_K_REGS)
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#define I387_ZMMENDH_REGNUM(tdep) \
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(I387_ZMM0H_REGNUM (tdep) + I387_NUM_ZMMH_REGS (tdep))
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#define I387_YMMH_AVX512_END_REGNUM(tdep) \
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(I387_YMM16H_REGNUM (tdep) + I387_NUM_YMM_AVX512_REGS (tdep))
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#define I387_XMM_AVX512_END_REGNUM(tdep) \
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(I387_XMM16_REGNUM (tdep) + I387_NUM_XMM_AVX512_REGS (tdep))
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#define I387_PKEYSEND_REGNUM(tdep) \
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(I387_PKRU_REGNUM (tdep) + I387_NUM_PKEYS_REGS)
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/* Print out the i387 floating point state. */
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extern void i387_print_float_info (struct gdbarch *gdbarch,
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struct ui_file *file,
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const frame_info_ptr &frame,
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const char *args);
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/* Return nonzero if a value of type TYPE stored in register REGNUM
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needs any special handling. */
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extern int i387_convert_register_p (struct gdbarch *gdbarch, int regnum,
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struct type *type);
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/* Read a value of type TYPE from register REGNUM in frame FRAME, and
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return its contents in TO. */
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extern int i387_register_to_value (const frame_info_ptr &frame, int regnum,
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struct type *type, gdb_byte *to,
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int *optimizedp, int *unavailablep);
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/* Write the contents FROM of a value of type TYPE into register
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REGNUM in frame FRAME. */
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extern void i387_value_to_register (const frame_info_ptr &frame, int regnum,
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struct type *type, const gdb_byte *from);
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/* Size of the memory area use by the 'fsave' and 'fxsave'
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instructions. */
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#define I387_SIZEOF_FSAVE 108
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#define I387_SIZEOF_FXSAVE 512
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/* Fill register REGNUM in REGCACHE with the appropriate value from
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*FSAVE. This function masks off any of the reserved bits in
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*FSAVE. */
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extern void i387_supply_fsave (struct regcache *regcache, int regnum,
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const void *fsave);
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/* Fill register REGNUM (if it is a floating-point register) in *FSAVE
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with the value from REGCACHE. If REGNUM is -1, do this for all
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registers. This function doesn't touch any of the reserved bits in
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*FSAVE. */
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extern void i387_collect_fsave (const struct regcache *regcache, int regnum,
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void *fsave);
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/* Fill register REGNUM in REGCACHE with the appropriate
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floating-point or SSE register value from *FXSAVE. This function
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masks off any of the reserved bits in *FXSAVE. */
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extern void i387_supply_fxsave (struct regcache *regcache, int regnum,
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const void *fxsave);
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/* Select an XSAVE layout based on the XCR0 bitmask and total XSAVE
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extended state size. Returns true if the bitmask and size matched
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a known layout. */
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extern bool i387_guess_xsave_layout (uint64_t xcr0, size_t xsave_size,
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x86_xsave_layout &layout);
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/* Compute an XSAVE layout based on the XCR0 bitmask. This is used
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as a fallback if a target does not provide an XSAVE layout. */
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extern x86_xsave_layout i387_fallback_xsave_layout (uint64_t xcr0);
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/* Similar to i387_supply_fxsave, but use XSAVE extended state. */
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extern void i387_supply_xsave (struct regcache *regcache, int regnum,
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const void *xsave);
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/* Fill register REGNUM (if it is a floating-point or SSE register) in
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*FXSAVE with the value from REGCACHE. If REGNUM is -1, do this for
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all registers. This function doesn't touch any of the reserved
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bits in *FXSAVE. */
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extern void i387_collect_fxsave (const struct regcache *regcache, int regnum,
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void *fxsave);
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/* Similar to i387_collect_fxsave, but use XSAVE extended state. */
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extern void i387_collect_xsave (const struct regcache *regcache,
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int regnum, void *xsave, int gcore);
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/* Extract a bitset from XSAVE indicating which features are available in
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the inferior, but not yet initialised. */
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extern ULONGEST i387_xsave_get_clear_bv (struct gdbarch *gdbarch,
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const void *xsave);
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/* Prepare the FPU stack in REGCACHE for a function return. */
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extern void i387_return_value (struct gdbarch *gdbarch,
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struct regcache *regcache);
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#endif /* i387-tdep.h */
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