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- /* Target-dependent code for GNU/Linux AArch64.
- Copyright (C) 2009-2022 Free Software Foundation, Inc.
- Contributed by ARM Ltd.
- This file is part of GDB.
- This program is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 3 of the License, or
- (at your option) any later version.
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
- You should have received a copy of the GNU General Public License
- along with this program. If not, see <http://www.gnu.org/licenses/>. */
- #include "defs.h"
- #include "gdbarch.h"
- #include "glibc-tdep.h"
- #include "linux-tdep.h"
- #include "aarch64-tdep.h"
- #include "aarch64-linux-tdep.h"
- #include "osabi.h"
- #include "solib-svr4.h"
- #include "symtab.h"
- #include "tramp-frame.h"
- #include "trad-frame.h"
- #include "target.h"
- #include "target/target.h"
- #include "expop.h"
- #include "regcache.h"
- #include "regset.h"
- #include "stap-probe.h"
- #include "parser-defs.h"
- #include "user-regs.h"
- #include "xml-syscall.h"
- #include <ctype.h>
- #include "record-full.h"
- #include "linux-record.h"
- #include "arch/aarch64-mte-linux.h"
- #include "arch-utils.h"
- #include "value.h"
- #include "gdbsupport/selftest.h"
- /* Signal frame handling.
- +------------+ ^
- | saved lr | |
- +->| saved fp |--+
- | | |
- | | |
- | +------------+
- | | saved lr |
- +--| saved fp |
- ^ | |
- | | |
- | +------------+
- ^ | |
- | | signal |
- | | | SIGTRAMP_FRAME (struct rt_sigframe)
- | | saved regs |
- +--| saved sp |--> interrupted_sp
- | | saved pc |--> interrupted_pc
- | | |
- | +------------+
- | | saved lr |--> default_restorer (movz x8, NR_sys_rt_sigreturn; svc 0)
- +--| saved fp |<- FP
- | | NORMAL_FRAME
- | |<- SP
- +------------+
- On signal delivery, the kernel will create a signal handler stack
- frame and setup the return address in LR to point at restorer stub.
- The signal stack frame is defined by:
- struct rt_sigframe
- {
- siginfo_t info;
- struct ucontext uc;
- };
- The ucontext has the following form:
- struct ucontext
- {
- unsigned long uc_flags;
- struct ucontext *uc_link;
- stack_t uc_stack;
- sigset_t uc_sigmask;
- struct sigcontext uc_mcontext;
- };
- struct sigcontext
- {
- unsigned long fault_address;
- unsigned long regs[31];
- unsigned long sp; / * 31 * /
- unsigned long pc; / * 32 * /
- unsigned long pstate; / * 33 * /
- __u8 __reserved[4096]
- };
- The reserved space in sigcontext contains additional structures, each starting
- with a aarch64_ctx, which specifies a unique identifier and the total size of
- the structure. The final structure in reserved will start will a null
- aarch64_ctx. The penultimate entry in reserved may be a extra_context which
- then points to a further block of reserved space.
- struct aarch64_ctx {
- u32 magic;
- u32 size;
- };
- The restorer stub will always have the form:
- d28015a8 movz x8, #0xad
- d4000001 svc #0x0
- This is a system call sys_rt_sigreturn.
- We detect signal frames by snooping the return code for the restorer
- instruction sequence.
- The handler then needs to recover the saved register set from
- ucontext.uc_mcontext. */
- /* These magic numbers need to reflect the layout of the kernel
- defined struct rt_sigframe and ucontext. */
- #define AARCH64_SIGCONTEXT_REG_SIZE 8
- #define AARCH64_RT_SIGFRAME_UCONTEXT_OFFSET 128
- #define AARCH64_UCONTEXT_SIGCONTEXT_OFFSET 176
- #define AARCH64_SIGCONTEXT_XO_OFFSET 8
- #define AARCH64_SIGCONTEXT_RESERVED_OFFSET 288
- #define AARCH64_SIGCONTEXT_RESERVED_SIZE 4096
- /* Unique identifiers that may be used for aarch64_ctx.magic. */
- #define AARCH64_EXTRA_MAGIC 0x45585401
- #define AARCH64_FPSIMD_MAGIC 0x46508001
- #define AARCH64_SVE_MAGIC 0x53564501
- /* Defines for the extra_context that follows an AARCH64_EXTRA_MAGIC. */
- #define AARCH64_EXTRA_DATAP_OFFSET 8
- /* Defines for the fpsimd that follows an AARCH64_FPSIMD_MAGIC. */
- #define AARCH64_FPSIMD_FPSR_OFFSET 8
- #define AARCH64_FPSIMD_FPCR_OFFSET 12
- #define AARCH64_FPSIMD_V0_OFFSET 16
- #define AARCH64_FPSIMD_VREG_SIZE 16
- /* Defines for the sve structure that follows an AARCH64_SVE_MAGIC. */
- #define AARCH64_SVE_CONTEXT_VL_OFFSET 8
- #define AARCH64_SVE_CONTEXT_REGS_OFFSET 16
- #define AARCH64_SVE_CONTEXT_P_REGS_OFFSET(vq) (32 * vq * 16)
- #define AARCH64_SVE_CONTEXT_FFR_OFFSET(vq) \
- (AARCH64_SVE_CONTEXT_P_REGS_OFFSET (vq) + (16 * vq * 2))
- #define AARCH64_SVE_CONTEXT_SIZE(vq) \
- (AARCH64_SVE_CONTEXT_FFR_OFFSET (vq) + (vq * 2))
- /* Read an aarch64_ctx, returning the magic value, and setting *SIZE to the
- size, or return 0 on error. */
- static uint32_t
- read_aarch64_ctx (CORE_ADDR ctx_addr, enum bfd_endian byte_order,
- uint32_t *size)
- {
- uint32_t magic = 0;
- gdb_byte buf[4];
- if (target_read_memory (ctx_addr, buf, 4) != 0)
- return 0;
- magic = extract_unsigned_integer (buf, 4, byte_order);
- if (target_read_memory (ctx_addr + 4, buf, 4) != 0)
- return 0;
- *size = extract_unsigned_integer (buf, 4, byte_order);
- return magic;
- }
- /* Given CACHE, use the trad_frame* functions to restore the FPSIMD
- registers from a signal frame.
- VREG_NUM is the number of the V register being restored, OFFSET is the
- address containing the register value, BYTE_ORDER is the endianness and
- HAS_SVE tells us if we have a valid SVE context or not. */
- static void
- aarch64_linux_restore_vreg (struct trad_frame_cache *cache, int num_regs,
- int vreg_num, CORE_ADDR offset,
- enum bfd_endian byte_order, bool has_sve)
- {
- /* WARNING: SIMD state is laid out in memory in target-endian format.
- So we have a couple cases to consider:
- 1 - If the target is big endian, then SIMD state is big endian,
- requiring a byteswap.
- 2 - If the target is little endian, then SIMD state is little endian, so
- no byteswap is needed. */
- if (byte_order == BFD_ENDIAN_BIG)
- {
- gdb_byte buf[V_REGISTER_SIZE];
- if (target_read_memory (offset, buf, V_REGISTER_SIZE) != 0)
- {
- size_t size = V_REGISTER_SIZE/2;
- /* Read the two halves of the V register in reverse byte order. */
- CORE_ADDR u64 = extract_unsigned_integer (buf, size,
- byte_order);
- CORE_ADDR l64 = extract_unsigned_integer (buf + size, size,
- byte_order);
- /* Copy the reversed bytes to the buffer. */
- store_unsigned_integer (buf, size, BFD_ENDIAN_LITTLE, l64);
- store_unsigned_integer (buf + size , size, BFD_ENDIAN_LITTLE, u64);
- /* Now we can store the correct bytes for the V register. */
- trad_frame_set_reg_value_bytes (cache, AARCH64_V0_REGNUM + vreg_num,
- {buf, V_REGISTER_SIZE});
- trad_frame_set_reg_value_bytes (cache,
- num_regs + AARCH64_Q0_REGNUM
- + vreg_num, {buf, Q_REGISTER_SIZE});
- trad_frame_set_reg_value_bytes (cache,
- num_regs + AARCH64_D0_REGNUM
- + vreg_num, {buf, D_REGISTER_SIZE});
- trad_frame_set_reg_value_bytes (cache,
- num_regs + AARCH64_S0_REGNUM
- + vreg_num, {buf, S_REGISTER_SIZE});
- trad_frame_set_reg_value_bytes (cache,
- num_regs + AARCH64_H0_REGNUM
- + vreg_num, {buf, H_REGISTER_SIZE});
- trad_frame_set_reg_value_bytes (cache,
- num_regs + AARCH64_B0_REGNUM
- + vreg_num, {buf, B_REGISTER_SIZE});
- if (has_sve)
- trad_frame_set_reg_value_bytes (cache,
- num_regs + AARCH64_SVE_V0_REGNUM
- + vreg_num, {buf, V_REGISTER_SIZE});
- }
- return;
- }
- /* Little endian, just point at the address containing the register
- value. */
- trad_frame_set_reg_addr (cache, AARCH64_V0_REGNUM + vreg_num, offset);
- trad_frame_set_reg_addr (cache, num_regs + AARCH64_Q0_REGNUM + vreg_num,
- offset);
- trad_frame_set_reg_addr (cache, num_regs + AARCH64_D0_REGNUM + vreg_num,
- offset);
- trad_frame_set_reg_addr (cache, num_regs + AARCH64_S0_REGNUM + vreg_num,
- offset);
- trad_frame_set_reg_addr (cache, num_regs + AARCH64_H0_REGNUM + vreg_num,
- offset);
- trad_frame_set_reg_addr (cache, num_regs + AARCH64_B0_REGNUM + vreg_num,
- offset);
- if (has_sve)
- trad_frame_set_reg_addr (cache, num_regs + AARCH64_SVE_V0_REGNUM
- + vreg_num, offset);
- }
- /* Implement the "init" method of struct tramp_frame. */
- static void
- aarch64_linux_sigframe_init (const struct tramp_frame *self,
- struct frame_info *this_frame,
- struct trad_frame_cache *this_cache,
- CORE_ADDR func)
- {
- struct gdbarch *gdbarch = get_frame_arch (this_frame);
- enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
- aarch64_gdbarch_tdep *tdep = (aarch64_gdbarch_tdep *) gdbarch_tdep (gdbarch);
- CORE_ADDR sp = get_frame_register_unsigned (this_frame, AARCH64_SP_REGNUM);
- CORE_ADDR sigcontext_addr = (sp + AARCH64_RT_SIGFRAME_UCONTEXT_OFFSET
- + AARCH64_UCONTEXT_SIGCONTEXT_OFFSET );
- CORE_ADDR section = sigcontext_addr + AARCH64_SIGCONTEXT_RESERVED_OFFSET;
- CORE_ADDR section_end = section + AARCH64_SIGCONTEXT_RESERVED_SIZE;
- CORE_ADDR fpsimd = 0;
- CORE_ADDR sve_regs = 0;
- uint32_t size, magic;
- bool extra_found = false;
- int num_regs = gdbarch_num_regs (gdbarch);
- /* Read in the integer registers. */
- for (int i = 0; i < 31; i++)
- {
- trad_frame_set_reg_addr (this_cache,
- AARCH64_X0_REGNUM + i,
- sigcontext_addr + AARCH64_SIGCONTEXT_XO_OFFSET
- + i * AARCH64_SIGCONTEXT_REG_SIZE);
- }
- trad_frame_set_reg_addr (this_cache, AARCH64_SP_REGNUM,
- sigcontext_addr + AARCH64_SIGCONTEXT_XO_OFFSET
- + 31 * AARCH64_SIGCONTEXT_REG_SIZE);
- trad_frame_set_reg_addr (this_cache, AARCH64_PC_REGNUM,
- sigcontext_addr + AARCH64_SIGCONTEXT_XO_OFFSET
- + 32 * AARCH64_SIGCONTEXT_REG_SIZE);
- /* Search for the FP and SVE sections, stopping at null. */
- while ((magic = read_aarch64_ctx (section, byte_order, &size)) != 0
- && size != 0)
- {
- switch (magic)
- {
- case AARCH64_FPSIMD_MAGIC:
- fpsimd = section;
- section += size;
- break;
- case AARCH64_SVE_MAGIC:
- {
- /* Check if the section is followed by a full SVE dump, and set
- sve_regs if it is. */
- gdb_byte buf[4];
- uint16_t vq;
- if (!tdep->has_sve ())
- break;
- if (target_read_memory (section + AARCH64_SVE_CONTEXT_VL_OFFSET,
- buf, 2) != 0)
- {
- section += size;
- break;
- }
- vq = sve_vq_from_vl (extract_unsigned_integer (buf, 2, byte_order));
- if (vq != tdep->vq)
- error (_("Invalid vector length in signal frame %d vs %s."), vq,
- pulongest (tdep->vq));
- if (size >= AARCH64_SVE_CONTEXT_SIZE (vq))
- sve_regs = section + AARCH64_SVE_CONTEXT_REGS_OFFSET;
- section += size;
- break;
- }
- case AARCH64_EXTRA_MAGIC:
- {
- /* Extra is always the last valid section in reserved and points to
- an additional block of memory filled with more sections. Reset
- the address to the extra section and continue looking for more
- structures. */
- gdb_byte buf[8];
- if (target_read_memory (section + AARCH64_EXTRA_DATAP_OFFSET,
- buf, 8) != 0)
- {
- section += size;
- break;
- }
- section = extract_unsigned_integer (buf, 8, byte_order);
- extra_found = true;
- break;
- }
- default:
- section += size;
- break;
- }
- /* Prevent searching past the end of the reserved section. The extra
- section does not have a hard coded limit - we have to rely on it ending
- with nulls. */
- if (!extra_found && section > section_end)
- break;
- }
- if (sve_regs != 0)
- {
- CORE_ADDR offset;
- for (int i = 0; i < 32; i++)
- {
- offset = sve_regs + (i * tdep->vq * 16);
- trad_frame_set_reg_addr (this_cache, AARCH64_SVE_Z0_REGNUM + i,
- offset);
- trad_frame_set_reg_addr (this_cache,
- num_regs + AARCH64_SVE_V0_REGNUM + i,
- offset);
- trad_frame_set_reg_addr (this_cache, num_regs + AARCH64_Q0_REGNUM + i,
- offset);
- trad_frame_set_reg_addr (this_cache, num_regs + AARCH64_D0_REGNUM + i,
- offset);
- trad_frame_set_reg_addr (this_cache, num_regs + AARCH64_S0_REGNUM + i,
- offset);
- trad_frame_set_reg_addr (this_cache, num_regs + AARCH64_H0_REGNUM + i,
- offset);
- trad_frame_set_reg_addr (this_cache, num_regs + AARCH64_B0_REGNUM + i,
- offset);
- }
- offset = sve_regs + AARCH64_SVE_CONTEXT_P_REGS_OFFSET (tdep->vq);
- for (int i = 0; i < 16; i++)
- trad_frame_set_reg_addr (this_cache, AARCH64_SVE_P0_REGNUM + i,
- offset + (i * tdep->vq * 2));
- offset = sve_regs + AARCH64_SVE_CONTEXT_FFR_OFFSET (tdep->vq);
- trad_frame_set_reg_addr (this_cache, AARCH64_SVE_FFR_REGNUM, offset);
- }
- if (fpsimd != 0)
- {
- trad_frame_set_reg_addr (this_cache, AARCH64_FPSR_REGNUM,
- fpsimd + AARCH64_FPSIMD_FPSR_OFFSET);
- trad_frame_set_reg_addr (this_cache, AARCH64_FPCR_REGNUM,
- fpsimd + AARCH64_FPSIMD_FPCR_OFFSET);
- /* If there was no SVE section then set up the V registers. */
- if (sve_regs == 0)
- {
- for (int i = 0; i < 32; i++)
- {
- CORE_ADDR offset = (fpsimd + AARCH64_FPSIMD_V0_OFFSET
- + (i * AARCH64_FPSIMD_VREG_SIZE));
- aarch64_linux_restore_vreg (this_cache, num_regs, i, offset,
- byte_order, tdep->has_sve ());
- }
- }
- }
- trad_frame_set_id (this_cache, frame_id_build (sp, func));
- }
- static const struct tramp_frame aarch64_linux_rt_sigframe =
- {
- SIGTRAMP_FRAME,
- 4,
- {
- /* movz x8, 0x8b (S=1,o=10,h=0,i=0x8b,r=8)
- Soo1 0010 1hhi iiii iiii iiii iiir rrrr */
- {0xd2801168, ULONGEST_MAX},
- /* svc 0x0 (o=0, l=1)
- 1101 0100 oooi iiii iiii iiii iii0 00ll */
- {0xd4000001, ULONGEST_MAX},
- {TRAMP_SENTINEL_INSN, ULONGEST_MAX}
- },
- aarch64_linux_sigframe_init
- };
- /* Register maps. */
- static const struct regcache_map_entry aarch64_linux_gregmap[] =
- {
- { 31, AARCH64_X0_REGNUM, 8 }, /* x0 ... x30 */
- { 1, AARCH64_SP_REGNUM, 8 },
- { 1, AARCH64_PC_REGNUM, 8 },
- { 1, AARCH64_CPSR_REGNUM, 8 },
- { 0 }
- };
- static const struct regcache_map_entry aarch64_linux_fpregmap[] =
- {
- { 32, AARCH64_V0_REGNUM, 16 }, /* v0 ... v31 */
- { 1, AARCH64_FPSR_REGNUM, 4 },
- { 1, AARCH64_FPCR_REGNUM, 4 },
- { 0 }
- };
- /* Register set definitions. */
- const struct regset aarch64_linux_gregset =
- {
- aarch64_linux_gregmap,
- regcache_supply_regset, regcache_collect_regset
- };
- const struct regset aarch64_linux_fpregset =
- {
- aarch64_linux_fpregmap,
- regcache_supply_regset, regcache_collect_regset
- };
- /* The fields in an SVE header at the start of a SVE regset. */
- #define SVE_HEADER_SIZE_LENGTH 4
- #define SVE_HEADER_MAX_SIZE_LENGTH 4
- #define SVE_HEADER_VL_LENGTH 2
- #define SVE_HEADER_MAX_VL_LENGTH 2
- #define SVE_HEADER_FLAGS_LENGTH 2
- #define SVE_HEADER_RESERVED_LENGTH 2
- #define SVE_HEADER_SIZE_OFFSET 0
- #define SVE_HEADER_MAX_SIZE_OFFSET \
- (SVE_HEADER_SIZE_OFFSET + SVE_HEADER_SIZE_LENGTH)
- #define SVE_HEADER_VL_OFFSET \
- (SVE_HEADER_MAX_SIZE_OFFSET + SVE_HEADER_MAX_SIZE_LENGTH)
- #define SVE_HEADER_MAX_VL_OFFSET \
- (SVE_HEADER_VL_OFFSET + SVE_HEADER_VL_LENGTH)
- #define SVE_HEADER_FLAGS_OFFSET \
- (SVE_HEADER_MAX_VL_OFFSET + SVE_HEADER_MAX_VL_LENGTH)
- #define SVE_HEADER_RESERVED_OFFSET \
- (SVE_HEADER_FLAGS_OFFSET + SVE_HEADER_FLAGS_LENGTH)
- #define SVE_HEADER_SIZE \
- (SVE_HEADER_RESERVED_OFFSET + SVE_HEADER_RESERVED_LENGTH)
- #define SVE_HEADER_FLAG_SVE 1
- /* Get VQ value from SVE section in the core dump. */
- static uint64_t
- aarch64_linux_core_read_vq (struct gdbarch *gdbarch, bfd *abfd)
- {
- gdb_byte header[SVE_HEADER_SIZE];
- enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
- asection *sve_section = bfd_get_section_by_name (abfd, ".reg-aarch-sve");
- if (sve_section == nullptr)
- {
- /* No SVE state. */
- return 0;
- }
- size_t size = bfd_section_size (sve_section);
- /* Check extended state size. */
- if (size < SVE_HEADER_SIZE)
- {
- warning (_("'.reg-aarch-sve' section in core file too small."));
- return 0;
- }
- if (!bfd_get_section_contents (abfd, sve_section, header, 0, SVE_HEADER_SIZE))
- {
- warning (_("Couldn't read sve header from "
- "'.reg-aarch-sve' section in core file."));
- return 0;
- }
- uint64_t vl = extract_unsigned_integer (header + SVE_HEADER_VL_OFFSET,
- SVE_HEADER_VL_LENGTH, byte_order);
- uint64_t vq = sve_vq_from_vl (vl);
- if (vq > AARCH64_MAX_SVE_VQ)
- {
- warning (_("SVE Vector length in core file not supported by this version"
- " of GDB. (VQ=%s)"), pulongest (vq));
- return 0;
- }
- else if (vq == 0)
- {
- warning (_("SVE Vector length in core file is invalid. (VQ=%s"),
- pulongest (vq));
- return 0;
- }
- return vq;
- }
- /* Supply register REGNUM from BUF to REGCACHE, using the register map
- in REGSET. If REGNUM is -1, do this for all registers in REGSET.
- If BUF is NULL, set the registers to "unavailable" status. */
- static void
- aarch64_linux_supply_sve_regset (const struct regset *regset,
- struct regcache *regcache,
- int regnum, const void *buf, size_t size)
- {
- gdb_byte *header = (gdb_byte *) buf;
- struct gdbarch *gdbarch = regcache->arch ();
- enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
- if (buf == nullptr)
- return regcache->supply_regset (regset, regnum, nullptr, size);
- gdb_assert (size > SVE_HEADER_SIZE);
- /* BUF contains an SVE header followed by a register dump of either the
- passed in SVE regset or a NEON fpregset. */
- /* Extract required fields from the header. */
- ULONGEST vl = extract_unsigned_integer (header + SVE_HEADER_VL_OFFSET,
- SVE_HEADER_VL_LENGTH, byte_order);
- uint16_t flags = extract_unsigned_integer (header + SVE_HEADER_FLAGS_OFFSET,
- SVE_HEADER_FLAGS_LENGTH,
- byte_order);
- if (regnum == -1 || regnum == AARCH64_SVE_VG_REGNUM)
- {
- gdb_byte vg_target[8];
- store_integer ((gdb_byte *)&vg_target, sizeof (uint64_t), byte_order,
- sve_vg_from_vl (vl));
- regcache->raw_supply (AARCH64_SVE_VG_REGNUM, &vg_target);
- }
- if (flags & SVE_HEADER_FLAG_SVE)
- {
- /* Register dump is a SVE structure. */
- regcache->supply_regset (regset, regnum,
- (gdb_byte *) buf + SVE_HEADER_SIZE,
- size - SVE_HEADER_SIZE);
- }
- else
- {
- /* Register dump is a fpsimd structure. First clear the SVE
- registers. */
- for (int i = 0; i < AARCH64_SVE_Z_REGS_NUM; i++)
- regcache->raw_supply_zeroed (AARCH64_SVE_Z0_REGNUM + i);
- for (int i = 0; i < AARCH64_SVE_P_REGS_NUM; i++)
- regcache->raw_supply_zeroed (AARCH64_SVE_P0_REGNUM + i);
- regcache->raw_supply_zeroed (AARCH64_SVE_FFR_REGNUM);
- /* Then supply the fpsimd registers. */
- regcache->supply_regset (&aarch64_linux_fpregset, regnum,
- (gdb_byte *) buf + SVE_HEADER_SIZE,
- size - SVE_HEADER_SIZE);
- }
- }
- /* Collect register REGNUM from REGCACHE to BUF, using the register
- map in REGSET. If REGNUM is -1, do this for all registers in
- REGSET. */
- static void
- aarch64_linux_collect_sve_regset (const struct regset *regset,
- const struct regcache *regcache,
- int regnum, void *buf, size_t size)
- {
- gdb_byte *header = (gdb_byte *) buf;
- struct gdbarch *gdbarch = regcache->arch ();
- enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
- aarch64_gdbarch_tdep *tdep = (aarch64_gdbarch_tdep *) gdbarch_tdep (gdbarch);
- uint64_t vq = tdep->vq;
- gdb_assert (buf != NULL);
- gdb_assert (size > SVE_HEADER_SIZE);
- /* BUF starts with a SVE header prior to the register dump. */
- store_unsigned_integer (header + SVE_HEADER_SIZE_OFFSET,
- SVE_HEADER_SIZE_LENGTH, byte_order, size);
- store_unsigned_integer (header + SVE_HEADER_MAX_SIZE_OFFSET,
- SVE_HEADER_MAX_SIZE_LENGTH, byte_order, size);
- store_unsigned_integer (header + SVE_HEADER_VL_OFFSET, SVE_HEADER_VL_LENGTH,
- byte_order, sve_vl_from_vq (vq));
- store_unsigned_integer (header + SVE_HEADER_MAX_VL_OFFSET,
- SVE_HEADER_MAX_VL_LENGTH, byte_order,
- sve_vl_from_vq (vq));
- store_unsigned_integer (header + SVE_HEADER_FLAGS_OFFSET,
- SVE_HEADER_FLAGS_LENGTH, byte_order,
- SVE_HEADER_FLAG_SVE);
- store_unsigned_integer (header + SVE_HEADER_RESERVED_OFFSET,
- SVE_HEADER_RESERVED_LENGTH, byte_order, 0);
- /* The SVE register dump follows. */
- regcache->collect_regset (regset, regnum, (gdb_byte *) buf + SVE_HEADER_SIZE,
- size - SVE_HEADER_SIZE);
- }
- /* Implement the "iterate_over_regset_sections" gdbarch method. */
- static void
- aarch64_linux_iterate_over_regset_sections (struct gdbarch *gdbarch,
- iterate_over_regset_sections_cb *cb,
- void *cb_data,
- const struct regcache *regcache)
- {
- aarch64_gdbarch_tdep *tdep = (aarch64_gdbarch_tdep *) gdbarch_tdep (gdbarch);
- cb (".reg", AARCH64_LINUX_SIZEOF_GREGSET, AARCH64_LINUX_SIZEOF_GREGSET,
- &aarch64_linux_gregset, NULL, cb_data);
- if (tdep->has_sve ())
- {
- /* Create this on the fly in order to handle vector register sizes. */
- const struct regcache_map_entry sve_regmap[] =
- {
- { 32, AARCH64_SVE_Z0_REGNUM, (int) (tdep->vq * 16) },
- { 16, AARCH64_SVE_P0_REGNUM, (int) (tdep->vq * 16 / 8) },
- { 1, AARCH64_SVE_FFR_REGNUM, (int) (tdep->vq * 16 / 8) },
- { 1, AARCH64_FPSR_REGNUM, 4 },
- { 1, AARCH64_FPCR_REGNUM, 4 },
- { 0 }
- };
- const struct regset aarch64_linux_sve_regset =
- {
- sve_regmap,
- aarch64_linux_supply_sve_regset, aarch64_linux_collect_sve_regset,
- REGSET_VARIABLE_SIZE
- };
- cb (".reg-aarch-sve",
- SVE_HEADER_SIZE + regcache_map_entry_size (aarch64_linux_fpregmap),
- SVE_HEADER_SIZE + regcache_map_entry_size (sve_regmap),
- &aarch64_linux_sve_regset, "SVE registers", cb_data);
- }
- else
- cb (".reg2", AARCH64_LINUX_SIZEOF_FPREGSET, AARCH64_LINUX_SIZEOF_FPREGSET,
- &aarch64_linux_fpregset, NULL, cb_data);
- if (tdep->has_pauth ())
- {
- /* Create this on the fly in order to handle the variable location. */
- const struct regcache_map_entry pauth_regmap[] =
- {
- { 2, AARCH64_PAUTH_DMASK_REGNUM (tdep->pauth_reg_base), 8},
- { 0 }
- };
- const struct regset aarch64_linux_pauth_regset =
- {
- pauth_regmap, regcache_supply_regset, regcache_collect_regset
- };
- cb (".reg-aarch-pauth", AARCH64_LINUX_SIZEOF_PAUTH,
- AARCH64_LINUX_SIZEOF_PAUTH, &aarch64_linux_pauth_regset,
- "pauth registers", cb_data);
- }
- /* Handle MTE registers. */
- if (tdep->has_mte ())
- {
- /* Create this on the fly in order to handle the variable location. */
- const struct regcache_map_entry mte_regmap[] =
- {
- { 1, tdep->mte_reg_base, 8},
- { 0 }
- };
- const struct regset aarch64_linux_mte_regset =
- {
- mte_regmap, regcache_supply_regset, regcache_collect_regset
- };
- cb (".reg-aarch-mte", AARCH64_LINUX_SIZEOF_MTE_REGSET,
- AARCH64_LINUX_SIZEOF_MTE_REGSET, &aarch64_linux_mte_regset,
- "MTE registers", cb_data);
- }
- }
- /* Implement the "core_read_description" gdbarch method. */
- static const struct target_desc *
- aarch64_linux_core_read_description (struct gdbarch *gdbarch,
- struct target_ops *target, bfd *abfd)
- {
- CORE_ADDR hwcap = linux_get_hwcap (target);
- CORE_ADDR hwcap2 = linux_get_hwcap2 (target);
- bool pauth_p = hwcap & AARCH64_HWCAP_PACA;
- bool mte_p = hwcap2 & HWCAP2_MTE;
- return aarch64_read_description (aarch64_linux_core_read_vq (gdbarch, abfd),
- pauth_p, mte_p);
- }
- /* Implementation of `gdbarch_stap_is_single_operand', as defined in
- gdbarch.h. */
- static int
- aarch64_stap_is_single_operand (struct gdbarch *gdbarch, const char *s)
- {
- return (*s == '#' || isdigit (*s) /* Literal number. */
- || *s == '[' /* Register indirection. */
- || isalpha (*s)); /* Register value. */
- }
- /* This routine is used to parse a special token in AArch64's assembly.
- The special tokens parsed by it are:
- - Register displacement (e.g, [fp, #-8])
- It returns one if the special token has been parsed successfully,
- or zero if the current token is not considered special. */
- static expr::operation_up
- aarch64_stap_parse_special_token (struct gdbarch *gdbarch,
- struct stap_parse_info *p)
- {
- if (*p->arg == '[')
- {
- /* Temporary holder for lookahead. */
- const char *tmp = p->arg;
- char *endp;
- /* Used to save the register name. */
- const char *start;
- int len;
- int got_minus = 0;
- long displacement;
- ++tmp;
- start = tmp;
- /* Register name. */
- while (isalnum (*tmp))
- ++tmp;
- if (*tmp != ',')
- return {};
- len = tmp - start;
- std::string regname (start, len);
- if (user_reg_map_name_to_regnum (gdbarch, regname.c_str (), len) == -1)
- error (_("Invalid register name `%s' on expression `%s'."),
- regname.c_str (), p->saved_arg);
- ++tmp;
- tmp = skip_spaces (tmp);
- /* Now we expect a number. It can begin with '#' or simply
- a digit. */
- if (*tmp == '#')
- ++tmp;
- if (*tmp == '-')
- {
- ++tmp;
- got_minus = 1;
- }
- else if (*tmp == '+')
- ++tmp;
- if (!isdigit (*tmp))
- return {};
- displacement = strtol (tmp, &endp, 10);
- tmp = endp;
- /* Skipping last `]'. */
- if (*tmp++ != ']')
- return {};
- p->arg = tmp;
- using namespace expr;
- /* The displacement. */
- struct type *long_type = builtin_type (gdbarch)->builtin_long;
- if (got_minus)
- displacement = -displacement;
- operation_up disp = make_operation<long_const_operation> (long_type,
- displacement);
- /* The register name. */
- operation_up reg
- = make_operation<register_operation> (std::move (regname));
- operation_up sum
- = make_operation<add_operation> (std::move (reg), std::move (disp));
- /* Casting to the expected type. */
- struct type *arg_ptr_type = lookup_pointer_type (p->arg_type);
- sum = make_operation<unop_cast_operation> (std::move (sum),
- arg_ptr_type);
- return make_operation<unop_ind_operation> (std::move (sum));
- }
- return {};
- }
- /* AArch64 process record-replay constructs: syscall, signal etc. */
- static linux_record_tdep aarch64_linux_record_tdep;
- /* Enum that defines the AArch64 linux specific syscall identifiers used for
- process record/replay. */
- enum aarch64_syscall {
- aarch64_sys_io_setup = 0,
- aarch64_sys_io_destroy = 1,
- aarch64_sys_io_submit = 2,
- aarch64_sys_io_cancel = 3,
- aarch64_sys_io_getevents = 4,
- aarch64_sys_setxattr = 5,
- aarch64_sys_lsetxattr = 6,
- aarch64_sys_fsetxattr = 7,
- aarch64_sys_getxattr = 8,
- aarch64_sys_lgetxattr = 9,
- aarch64_sys_fgetxattr = 10,
- aarch64_sys_listxattr = 11,
- aarch64_sys_llistxattr = 12,
- aarch64_sys_flistxattr = 13,
- aarch64_sys_removexattr = 14,
- aarch64_sys_lremovexattr = 15,
- aarch64_sys_fremovexattr = 16,
- aarch64_sys_getcwd = 17,
- aarch64_sys_lookup_dcookie = 18,
- aarch64_sys_eventfd2 = 19,
- aarch64_sys_epoll_create1 = 20,
- aarch64_sys_epoll_ctl = 21,
- aarch64_sys_epoll_pwait = 22,
- aarch64_sys_dup = 23,
- aarch64_sys_dup3 = 24,
- aarch64_sys_fcntl = 25,
- aarch64_sys_inotify_init1 = 26,
- aarch64_sys_inotify_add_watch = 27,
- aarch64_sys_inotify_rm_watch = 28,
- aarch64_sys_ioctl = 29,
- aarch64_sys_ioprio_set = 30,
- aarch64_sys_ioprio_get = 31,
- aarch64_sys_flock = 32,
- aarch64_sys_mknodat = 33,
- aarch64_sys_mkdirat = 34,
- aarch64_sys_unlinkat = 35,
- aarch64_sys_symlinkat = 36,
- aarch64_sys_linkat = 37,
- aarch64_sys_renameat = 38,
- aarch64_sys_umount2 = 39,
- aarch64_sys_mount = 40,
- aarch64_sys_pivot_root = 41,
- aarch64_sys_nfsservctl = 42,
- aarch64_sys_statfs = 43,
- aarch64_sys_fstatfs = 44,
- aarch64_sys_truncate = 45,
- aarch64_sys_ftruncate = 46,
- aarch64_sys_fallocate = 47,
- aarch64_sys_faccessat = 48,
- aarch64_sys_chdir = 49,
- aarch64_sys_fchdir = 50,
- aarch64_sys_chroot = 51,
- aarch64_sys_fchmod = 52,
- aarch64_sys_fchmodat = 53,
- aarch64_sys_fchownat = 54,
- aarch64_sys_fchown = 55,
- aarch64_sys_openat = 56,
- aarch64_sys_close = 57,
- aarch64_sys_vhangup = 58,
- aarch64_sys_pipe2 = 59,
- aarch64_sys_quotactl = 60,
- aarch64_sys_getdents64 = 61,
- aarch64_sys_lseek = 62,
- aarch64_sys_read = 63,
- aarch64_sys_write = 64,
- aarch64_sys_readv = 65,
- aarch64_sys_writev = 66,
- aarch64_sys_pread64 = 67,
- aarch64_sys_pwrite64 = 68,
- aarch64_sys_preadv = 69,
- aarch64_sys_pwritev = 70,
- aarch64_sys_sendfile = 71,
- aarch64_sys_pselect6 = 72,
- aarch64_sys_ppoll = 73,
- aarch64_sys_signalfd4 = 74,
- aarch64_sys_vmsplice = 75,
- aarch64_sys_splice = 76,
- aarch64_sys_tee = 77,
- aarch64_sys_readlinkat = 78,
- aarch64_sys_newfstatat = 79,
- aarch64_sys_fstat = 80,
- aarch64_sys_sync = 81,
- aarch64_sys_fsync = 82,
- aarch64_sys_fdatasync = 83,
- aarch64_sys_sync_file_range2 = 84,
- aarch64_sys_sync_file_range = 84,
- aarch64_sys_timerfd_create = 85,
- aarch64_sys_timerfd_settime = 86,
- aarch64_sys_timerfd_gettime = 87,
- aarch64_sys_utimensat = 88,
- aarch64_sys_acct = 89,
- aarch64_sys_capget = 90,
- aarch64_sys_capset = 91,
- aarch64_sys_personality = 92,
- aarch64_sys_exit = 93,
- aarch64_sys_exit_group = 94,
- aarch64_sys_waitid = 95,
- aarch64_sys_set_tid_address = 96,
- aarch64_sys_unshare = 97,
- aarch64_sys_futex = 98,
- aarch64_sys_set_robust_list = 99,
- aarch64_sys_get_robust_list = 100,
- aarch64_sys_nanosleep = 101,
- aarch64_sys_getitimer = 102,
- aarch64_sys_setitimer = 103,
- aarch64_sys_kexec_load = 104,
- aarch64_sys_init_module = 105,
- aarch64_sys_delete_module = 106,
- aarch64_sys_timer_create = 107,
- aarch64_sys_timer_gettime = 108,
- aarch64_sys_timer_getoverrun = 109,
- aarch64_sys_timer_settime = 110,
- aarch64_sys_timer_delete = 111,
- aarch64_sys_clock_settime = 112,
- aarch64_sys_clock_gettime = 113,
- aarch64_sys_clock_getres = 114,
- aarch64_sys_clock_nanosleep = 115,
- aarch64_sys_syslog = 116,
- aarch64_sys_ptrace = 117,
- aarch64_sys_sched_setparam = 118,
- aarch64_sys_sched_setscheduler = 119,
- aarch64_sys_sched_getscheduler = 120,
- aarch64_sys_sched_getparam = 121,
- aarch64_sys_sched_setaffinity = 122,
- aarch64_sys_sched_getaffinity = 123,
- aarch64_sys_sched_yield = 124,
- aarch64_sys_sched_get_priority_max = 125,
- aarch64_sys_sched_get_priority_min = 126,
- aarch64_sys_sched_rr_get_interval = 127,
- aarch64_sys_kill = 129,
- aarch64_sys_tkill = 130,
- aarch64_sys_tgkill = 131,
- aarch64_sys_sigaltstack = 132,
- aarch64_sys_rt_sigsuspend = 133,
- aarch64_sys_rt_sigaction = 134,
- aarch64_sys_rt_sigprocmask = 135,
- aarch64_sys_rt_sigpending = 136,
- aarch64_sys_rt_sigtimedwait = 137,
- aarch64_sys_rt_sigqueueinfo = 138,
- aarch64_sys_rt_sigreturn = 139,
- aarch64_sys_setpriority = 140,
- aarch64_sys_getpriority = 141,
- aarch64_sys_reboot = 142,
- aarch64_sys_setregid = 143,
- aarch64_sys_setgid = 144,
- aarch64_sys_setreuid = 145,
- aarch64_sys_setuid = 146,
- aarch64_sys_setresuid = 147,
- aarch64_sys_getresuid = 148,
- aarch64_sys_setresgid = 149,
- aarch64_sys_getresgid = 150,
- aarch64_sys_setfsuid = 151,
- aarch64_sys_setfsgid = 152,
- aarch64_sys_times = 153,
- aarch64_sys_setpgid = 154,
- aarch64_sys_getpgid = 155,
- aarch64_sys_getsid = 156,
- aarch64_sys_setsid = 157,
- aarch64_sys_getgroups = 158,
- aarch64_sys_setgroups = 159,
- aarch64_sys_uname = 160,
- aarch64_sys_sethostname = 161,
- aarch64_sys_setdomainname = 162,
- aarch64_sys_getrlimit = 163,
- aarch64_sys_setrlimit = 164,
- aarch64_sys_getrusage = 165,
- aarch64_sys_umask = 166,
- aarch64_sys_prctl = 167,
- aarch64_sys_getcpu = 168,
- aarch64_sys_gettimeofday = 169,
- aarch64_sys_settimeofday = 170,
- aarch64_sys_adjtimex = 171,
- aarch64_sys_getpid = 172,
- aarch64_sys_getppid = 173,
- aarch64_sys_getuid = 174,
- aarch64_sys_geteuid = 175,
- aarch64_sys_getgid = 176,
- aarch64_sys_getegid = 177,
- aarch64_sys_gettid = 178,
- aarch64_sys_sysinfo = 179,
- aarch64_sys_mq_open = 180,
- aarch64_sys_mq_unlink = 181,
- aarch64_sys_mq_timedsend = 182,
- aarch64_sys_mq_timedreceive = 183,
- aarch64_sys_mq_notify = 184,
- aarch64_sys_mq_getsetattr = 185,
- aarch64_sys_msgget = 186,
- aarch64_sys_msgctl = 187,
- aarch64_sys_msgrcv = 188,
- aarch64_sys_msgsnd = 189,
- aarch64_sys_semget = 190,
- aarch64_sys_semctl = 191,
- aarch64_sys_semtimedop = 192,
- aarch64_sys_semop = 193,
- aarch64_sys_shmget = 194,
- aarch64_sys_shmctl = 195,
- aarch64_sys_shmat = 196,
- aarch64_sys_shmdt = 197,
- aarch64_sys_socket = 198,
- aarch64_sys_socketpair = 199,
- aarch64_sys_bind = 200,
- aarch64_sys_listen = 201,
- aarch64_sys_accept = 202,
- aarch64_sys_connect = 203,
- aarch64_sys_getsockname = 204,
- aarch64_sys_getpeername = 205,
- aarch64_sys_sendto = 206,
- aarch64_sys_recvfrom = 207,
- aarch64_sys_setsockopt = 208,
- aarch64_sys_getsockopt = 209,
- aarch64_sys_shutdown = 210,
- aarch64_sys_sendmsg = 211,
- aarch64_sys_recvmsg = 212,
- aarch64_sys_readahead = 213,
- aarch64_sys_brk = 214,
- aarch64_sys_munmap = 215,
- aarch64_sys_mremap = 216,
- aarch64_sys_add_key = 217,
- aarch64_sys_request_key = 218,
- aarch64_sys_keyctl = 219,
- aarch64_sys_clone = 220,
- aarch64_sys_execve = 221,
- aarch64_sys_mmap = 222,
- aarch64_sys_fadvise64 = 223,
- aarch64_sys_swapon = 224,
- aarch64_sys_swapoff = 225,
- aarch64_sys_mprotect = 226,
- aarch64_sys_msync = 227,
- aarch64_sys_mlock = 228,
- aarch64_sys_munlock = 229,
- aarch64_sys_mlockall = 230,
- aarch64_sys_munlockall = 231,
- aarch64_sys_mincore = 232,
- aarch64_sys_madvise = 233,
- aarch64_sys_remap_file_pages = 234,
- aarch64_sys_mbind = 235,
- aarch64_sys_get_mempolicy = 236,
- aarch64_sys_set_mempolicy = 237,
- aarch64_sys_migrate_pages = 238,
- aarch64_sys_move_pages = 239,
- aarch64_sys_rt_tgsigqueueinfo = 240,
- aarch64_sys_perf_event_open = 241,
- aarch64_sys_accept4 = 242,
- aarch64_sys_recvmmsg = 243,
- aarch64_sys_wait4 = 260,
- aarch64_sys_prlimit64 = 261,
- aarch64_sys_fanotify_init = 262,
- aarch64_sys_fanotify_mark = 263,
- aarch64_sys_name_to_handle_at = 264,
- aarch64_sys_open_by_handle_at = 265,
- aarch64_sys_clock_adjtime = 266,
- aarch64_sys_syncfs = 267,
- aarch64_sys_setns = 268,
- aarch64_sys_sendmmsg = 269,
- aarch64_sys_process_vm_readv = 270,
- aarch64_sys_process_vm_writev = 271,
- aarch64_sys_kcmp = 272,
- aarch64_sys_finit_module = 273,
- aarch64_sys_sched_setattr = 274,
- aarch64_sys_sched_getattr = 275,
- };
- /* aarch64_canonicalize_syscall maps syscall ids from the native AArch64
- linux set of syscall ids into a canonical set of syscall ids used by
- process record. */
- static enum gdb_syscall
- aarch64_canonicalize_syscall (enum aarch64_syscall syscall_number)
- {
- #define SYSCALL_MAP(SYSCALL) case aarch64_sys_##SYSCALL: \
- return gdb_sys_##SYSCALL
- #define UNSUPPORTED_SYSCALL_MAP(SYSCALL) case aarch64_sys_##SYSCALL: \
- return gdb_sys_no_syscall
- switch (syscall_number)
- {
- SYSCALL_MAP (io_setup);
- SYSCALL_MAP (io_destroy);
- SYSCALL_MAP (io_submit);
- SYSCALL_MAP (io_cancel);
- SYSCALL_MAP (io_getevents);
- SYSCALL_MAP (setxattr);
- SYSCALL_MAP (lsetxattr);
- SYSCALL_MAP (fsetxattr);
- SYSCALL_MAP (getxattr);
- SYSCALL_MAP (lgetxattr);
- SYSCALL_MAP (fgetxattr);
- SYSCALL_MAP (listxattr);
- SYSCALL_MAP (llistxattr);
- SYSCALL_MAP (flistxattr);
- SYSCALL_MAP (removexattr);
- SYSCALL_MAP (lremovexattr);
- SYSCALL_MAP (fremovexattr);
- SYSCALL_MAP (getcwd);
- SYSCALL_MAP (lookup_dcookie);
- SYSCALL_MAP (eventfd2);
- SYSCALL_MAP (epoll_create1);
- SYSCALL_MAP (epoll_ctl);
- SYSCALL_MAP (epoll_pwait);
- SYSCALL_MAP (dup);
- SYSCALL_MAP (dup3);
- SYSCALL_MAP (fcntl);
- SYSCALL_MAP (inotify_init1);
- SYSCALL_MAP (inotify_add_watch);
- SYSCALL_MAP (inotify_rm_watch);
- SYSCALL_MAP (ioctl);
- SYSCALL_MAP (ioprio_set);
- SYSCALL_MAP (ioprio_get);
- SYSCALL_MAP (flock);
- SYSCALL_MAP (mknodat);
- SYSCALL_MAP (mkdirat);
- SYSCALL_MAP (unlinkat);
- SYSCALL_MAP (symlinkat);
- SYSCALL_MAP (linkat);
- SYSCALL_MAP (renameat);
- UNSUPPORTED_SYSCALL_MAP (umount2);
- SYSCALL_MAP (mount);
- SYSCALL_MAP (pivot_root);
- SYSCALL_MAP (nfsservctl);
- SYSCALL_MAP (statfs);
- SYSCALL_MAP (truncate);
- SYSCALL_MAP (ftruncate);
- SYSCALL_MAP (fallocate);
- SYSCALL_MAP (faccessat);
- SYSCALL_MAP (fchdir);
- SYSCALL_MAP (chroot);
- SYSCALL_MAP (fchmod);
- SYSCALL_MAP (fchmodat);
- SYSCALL_MAP (fchownat);
- SYSCALL_MAP (fchown);
- SYSCALL_MAP (openat);
- SYSCALL_MAP (close);
- SYSCALL_MAP (vhangup);
- SYSCALL_MAP (pipe2);
- SYSCALL_MAP (quotactl);
- SYSCALL_MAP (getdents64);
- SYSCALL_MAP (lseek);
- SYSCALL_MAP (read);
- SYSCALL_MAP (write);
- SYSCALL_MAP (readv);
- SYSCALL_MAP (writev);
- SYSCALL_MAP (pread64);
- SYSCALL_MAP (pwrite64);
- UNSUPPORTED_SYSCALL_MAP (preadv);
- UNSUPPORTED_SYSCALL_MAP (pwritev);
- SYSCALL_MAP (sendfile);
- SYSCALL_MAP (pselect6);
- SYSCALL_MAP (ppoll);
- UNSUPPORTED_SYSCALL_MAP (signalfd4);
- SYSCALL_MAP (vmsplice);
- SYSCALL_MAP (splice);
- SYSCALL_MAP (tee);
- SYSCALL_MAP (readlinkat);
- SYSCALL_MAP (newfstatat);
- SYSCALL_MAP (fstat);
- SYSCALL_MAP (sync);
- SYSCALL_MAP (fsync);
- SYSCALL_MAP (fdatasync);
- SYSCALL_MAP (sync_file_range);
- UNSUPPORTED_SYSCALL_MAP (timerfd_create);
- UNSUPPORTED_SYSCALL_MAP (timerfd_settime);
- UNSUPPORTED_SYSCALL_MAP (timerfd_gettime);
- UNSUPPORTED_SYSCALL_MAP (utimensat);
- SYSCALL_MAP (acct);
- SYSCALL_MAP (capget);
- SYSCALL_MAP (capset);
- SYSCALL_MAP (personality);
- SYSCALL_MAP (exit);
- SYSCALL_MAP (exit_group);
- SYSCALL_MAP (waitid);
- SYSCALL_MAP (set_tid_address);
- SYSCALL_MAP (unshare);
- SYSCALL_MAP (futex);
- SYSCALL_MAP (set_robust_list);
- SYSCALL_MAP (get_robust_list);
- SYSCALL_MAP (nanosleep);
- SYSCALL_MAP (getitimer);
- SYSCALL_MAP (setitimer);
- SYSCALL_MAP (kexec_load);
- SYSCALL_MAP (init_module);
- SYSCALL_MAP (delete_module);
- SYSCALL_MAP (timer_create);
- SYSCALL_MAP (timer_settime);
- SYSCALL_MAP (timer_gettime);
- SYSCALL_MAP (timer_getoverrun);
- SYSCALL_MAP (timer_delete);
- SYSCALL_MAP (clock_settime);
- SYSCALL_MAP (clock_gettime);
- SYSCALL_MAP (clock_getres);
- SYSCALL_MAP (clock_nanosleep);
- SYSCALL_MAP (syslog);
- SYSCALL_MAP (ptrace);
- SYSCALL_MAP (sched_setparam);
- SYSCALL_MAP (sched_setscheduler);
- SYSCALL_MAP (sched_getscheduler);
- SYSCALL_MAP (sched_getparam);
- SYSCALL_MAP (sched_setaffinity);
- SYSCALL_MAP (sched_getaffinity);
- SYSCALL_MAP (sched_yield);
- SYSCALL_MAP (sched_get_priority_max);
- SYSCALL_MAP (sched_get_priority_min);
- SYSCALL_MAP (sched_rr_get_interval);
- SYSCALL_MAP (kill);
- SYSCALL_MAP (tkill);
- SYSCALL_MAP (tgkill);
- SYSCALL_MAP (sigaltstack);
- SYSCALL_MAP (rt_sigsuspend);
- SYSCALL_MAP (rt_sigaction);
- SYSCALL_MAP (rt_sigprocmask);
- SYSCALL_MAP (rt_sigpending);
- SYSCALL_MAP (rt_sigtimedwait);
- SYSCALL_MAP (rt_sigqueueinfo);
- SYSCALL_MAP (rt_sigreturn);
- SYSCALL_MAP (setpriority);
- SYSCALL_MAP (getpriority);
- SYSCALL_MAP (reboot);
- SYSCALL_MAP (setregid);
- SYSCALL_MAP (setgid);
- SYSCALL_MAP (setreuid);
- SYSCALL_MAP (setuid);
- SYSCALL_MAP (setresuid);
- SYSCALL_MAP (getresuid);
- SYSCALL_MAP (setresgid);
- SYSCALL_MAP (getresgid);
- SYSCALL_MAP (setfsuid);
- SYSCALL_MAP (setfsgid);
- SYSCALL_MAP (times);
- SYSCALL_MAP (setpgid);
- SYSCALL_MAP (getpgid);
- SYSCALL_MAP (getsid);
- SYSCALL_MAP (setsid);
- SYSCALL_MAP (getgroups);
- SYSCALL_MAP (setgroups);
- SYSCALL_MAP (uname);
- SYSCALL_MAP (sethostname);
- SYSCALL_MAP (setdomainname);
- SYSCALL_MAP (getrlimit);
- SYSCALL_MAP (setrlimit);
- SYSCALL_MAP (getrusage);
- SYSCALL_MAP (umask);
- SYSCALL_MAP (prctl);
- SYSCALL_MAP (getcpu);
- SYSCALL_MAP (gettimeofday);
- SYSCALL_MAP (settimeofday);
- SYSCALL_MAP (adjtimex);
- SYSCALL_MAP (getpid);
- SYSCALL_MAP (getppid);
- SYSCALL_MAP (getuid);
- SYSCALL_MAP (geteuid);
- SYSCALL_MAP (getgid);
- SYSCALL_MAP (getegid);
- SYSCALL_MAP (gettid);
- SYSCALL_MAP (sysinfo);
- SYSCALL_MAP (mq_open);
- SYSCALL_MAP (mq_unlink);
- SYSCALL_MAP (mq_timedsend);
- SYSCALL_MAP (mq_timedreceive);
- SYSCALL_MAP (mq_notify);
- SYSCALL_MAP (mq_getsetattr);
- SYSCALL_MAP (msgget);
- SYSCALL_MAP (msgctl);
- SYSCALL_MAP (msgrcv);
- SYSCALL_MAP (msgsnd);
- SYSCALL_MAP (semget);
- SYSCALL_MAP (semctl);
- SYSCALL_MAP (semtimedop);
- SYSCALL_MAP (semop);
- SYSCALL_MAP (shmget);
- SYSCALL_MAP (shmctl);
- SYSCALL_MAP (shmat);
- SYSCALL_MAP (shmdt);
- SYSCALL_MAP (socket);
- SYSCALL_MAP (socketpair);
- SYSCALL_MAP (bind);
- SYSCALL_MAP (listen);
- SYSCALL_MAP (accept);
- SYSCALL_MAP (connect);
- SYSCALL_MAP (getsockname);
- SYSCALL_MAP (getpeername);
- SYSCALL_MAP (sendto);
- SYSCALL_MAP (recvfrom);
- SYSCALL_MAP (setsockopt);
- SYSCALL_MAP (getsockopt);
- SYSCALL_MAP (shutdown);
- SYSCALL_MAP (sendmsg);
- SYSCALL_MAP (recvmsg);
- SYSCALL_MAP (readahead);
- SYSCALL_MAP (brk);
- SYSCALL_MAP (munmap);
- SYSCALL_MAP (mremap);
- SYSCALL_MAP (add_key);
- SYSCALL_MAP (request_key);
- SYSCALL_MAP (keyctl);
- SYSCALL_MAP (clone);
- SYSCALL_MAP (execve);
- case aarch64_sys_mmap:
- return gdb_sys_mmap2;
- SYSCALL_MAP (fadvise64);
- SYSCALL_MAP (swapon);
- SYSCALL_MAP (swapoff);
- SYSCALL_MAP (mprotect);
- SYSCALL_MAP (msync);
- SYSCALL_MAP (mlock);
- SYSCALL_MAP (munlock);
- SYSCALL_MAP (mlockall);
- SYSCALL_MAP (munlockall);
- SYSCALL_MAP (mincore);
- SYSCALL_MAP (madvise);
- SYSCALL_MAP (remap_file_pages);
- SYSCALL_MAP (mbind);
- SYSCALL_MAP (get_mempolicy);
- SYSCALL_MAP (set_mempolicy);
- SYSCALL_MAP (migrate_pages);
- SYSCALL_MAP (move_pages);
- UNSUPPORTED_SYSCALL_MAP (rt_tgsigqueueinfo);
- UNSUPPORTED_SYSCALL_MAP (perf_event_open);
- UNSUPPORTED_SYSCALL_MAP (accept4);
- UNSUPPORTED_SYSCALL_MAP (recvmmsg);
- SYSCALL_MAP (wait4);
- UNSUPPORTED_SYSCALL_MAP (prlimit64);
- UNSUPPORTED_SYSCALL_MAP (fanotify_init);
- UNSUPPORTED_SYSCALL_MAP (fanotify_mark);
- UNSUPPORTED_SYSCALL_MAP (name_to_handle_at);
- UNSUPPORTED_SYSCALL_MAP (open_by_handle_at);
- UNSUPPORTED_SYSCALL_MAP (clock_adjtime);
- UNSUPPORTED_SYSCALL_MAP (syncfs);
- UNSUPPORTED_SYSCALL_MAP (setns);
- UNSUPPORTED_SYSCALL_MAP (sendmmsg);
- UNSUPPORTED_SYSCALL_MAP (process_vm_readv);
- UNSUPPORTED_SYSCALL_MAP (process_vm_writev);
- UNSUPPORTED_SYSCALL_MAP (kcmp);
- UNSUPPORTED_SYSCALL_MAP (finit_module);
- UNSUPPORTED_SYSCALL_MAP (sched_setattr);
- UNSUPPORTED_SYSCALL_MAP (sched_getattr);
- default:
- return gdb_sys_no_syscall;
- }
- }
- /* Retrieve the syscall number at a ptrace syscall-stop, either on syscall entry
- or exit. Return -1 upon error. */
- static LONGEST
- aarch64_linux_get_syscall_number (struct gdbarch *gdbarch, thread_info *thread)
- {
- struct regcache *regs = get_thread_regcache (thread);
- LONGEST ret;
- /* Get the system call number from register x8. */
- regs->cooked_read (AARCH64_X0_REGNUM + 8, &ret);
- /* On exit from a successful execve, we will be in a new process and all the
- registers will be cleared - x0 to x30 will be 0, except for a 1 in x7.
- This function will only ever get called when stopped at the entry or exit
- of a syscall, so by checking for 0 in x0 (arg0/retval), x1 (arg1), x8
- (syscall), x29 (FP) and x30 (LR) we can infer:
- 1) Either inferior is at exit from successful execve.
- 2) Or inferior is at entry to a call to io_setup with invalid arguments and
- a corrupted FP and LR.
- It should be safe enough to assume case 1. */
- if (ret == 0)
- {
- LONGEST x1 = -1, fp = -1, lr = -1;
- regs->cooked_read (AARCH64_X0_REGNUM + 1, &x1);
- regs->cooked_read (AARCH64_FP_REGNUM, &fp);
- regs->cooked_read (AARCH64_LR_REGNUM, &lr);
- if (x1 == 0 && fp ==0 && lr == 0)
- return aarch64_sys_execve;
- }
- return ret;
- }
- /* Record all registers but PC register for process-record. */
- static int
- aarch64_all_but_pc_registers_record (struct regcache *regcache)
- {
- int i;
- for (i = AARCH64_X0_REGNUM; i < AARCH64_PC_REGNUM; i++)
- if (record_full_arch_list_add_reg (regcache, i))
- return -1;
- if (record_full_arch_list_add_reg (regcache, AARCH64_CPSR_REGNUM))
- return -1;
- return 0;
- }
- /* Handler for aarch64 system call instruction recording. */
- static int
- aarch64_linux_syscall_record (struct regcache *regcache,
- unsigned long svc_number)
- {
- int ret = 0;
- enum gdb_syscall syscall_gdb;
- syscall_gdb =
- aarch64_canonicalize_syscall ((enum aarch64_syscall) svc_number);
- if (syscall_gdb < 0)
- {
- gdb_printf (gdb_stderr,
- _("Process record and replay target doesn't "
- "support syscall number %s\n"),
- plongest (svc_number));
- return -1;
- }
- if (syscall_gdb == gdb_sys_sigreturn
- || syscall_gdb == gdb_sys_rt_sigreturn)
- {
- if (aarch64_all_but_pc_registers_record (regcache))
- return -1;
- return 0;
- }
- ret = record_linux_system_call (syscall_gdb, regcache,
- &aarch64_linux_record_tdep);
- if (ret != 0)
- return ret;
- /* Record the return value of the system call. */
- if (record_full_arch_list_add_reg (regcache, AARCH64_X0_REGNUM))
- return -1;
- /* Record LR. */
- if (record_full_arch_list_add_reg (regcache, AARCH64_LR_REGNUM))
- return -1;
- /* Record CPSR. */
- if (record_full_arch_list_add_reg (regcache, AARCH64_CPSR_REGNUM))
- return -1;
- return 0;
- }
- /* Implement the "gcc_target_options" gdbarch method. */
- static std::string
- aarch64_linux_gcc_target_options (struct gdbarch *gdbarch)
- {
- /* GCC doesn't know "-m64". */
- return {};
- }
- /* Helper to get the allocation tag from a 64-bit ADDRESS.
- Return the allocation tag if successful and nullopt otherwise. */
- static gdb::optional<CORE_ADDR>
- aarch64_mte_get_atag (CORE_ADDR address)
- {
- gdb::byte_vector tags;
- /* Attempt to fetch the allocation tag. */
- if (!target_fetch_memtags (address, 1, tags,
- static_cast<int> (memtag_type::allocation)))
- return {};
- /* Only one tag should've been returned. Make sure we got exactly that. */
- if (tags.size () != 1)
- error (_("Target returned an unexpected number of tags."));
- /* Although our tags are 4 bits in size, they are stored in a
- byte. */
- return tags[0];
- }
- /* Implement the tagged_address_p gdbarch method. */
- static bool
- aarch64_linux_tagged_address_p (struct gdbarch *gdbarch, struct value *address)
- {
- gdb_assert (address != nullptr);
- CORE_ADDR addr = value_as_address (address);
- /* Remove the top byte for the memory range check. */
- addr = address_significant (gdbarch, addr);
- /* Check if the page that contains ADDRESS is mapped with PROT_MTE. */
- if (!linux_address_in_memtag_page (addr))
- return false;
- /* We have a valid tag in the top byte of the 64-bit address. */
- return true;
- }
- /* Implement the memtag_matches_p gdbarch method. */
- static bool
- aarch64_linux_memtag_matches_p (struct gdbarch *gdbarch,
- struct value *address)
- {
- gdb_assert (address != nullptr);
- /* Make sure we are dealing with a tagged address to begin with. */
- if (!aarch64_linux_tagged_address_p (gdbarch, address))
- return true;
- CORE_ADDR addr = value_as_address (address);
- /* Fetch the allocation tag for ADDRESS. */
- gdb::optional<CORE_ADDR> atag
- = aarch64_mte_get_atag (address_significant (gdbarch, addr));
- if (!atag.has_value ())
- return true;
- /* Fetch the logical tag for ADDRESS. */
- gdb_byte ltag = aarch64_mte_get_ltag (addr);
- /* Are the tags the same? */
- return ltag == *atag;
- }
- /* Implement the set_memtags gdbarch method. */
- static bool
- aarch64_linux_set_memtags (struct gdbarch *gdbarch, struct value *address,
- size_t length, const gdb::byte_vector &tags,
- memtag_type tag_type)
- {
- gdb_assert (!tags.empty ());
- gdb_assert (address != nullptr);
- CORE_ADDR addr = value_as_address (address);
- /* Set the logical tag or the allocation tag. */
- if (tag_type == memtag_type::logical)
- {
- /* When setting logical tags, we don't care about the length, since
- we are only setting a single logical tag. */
- addr = aarch64_mte_set_ltag (addr, tags[0]);
- /* Update the value's content with the tag. */
- enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
- gdb_byte *srcbuf = value_contents_raw (address).data ();
- store_unsigned_integer (srcbuf, sizeof (addr), byte_order, addr);
- }
- else
- {
- /* Remove the top byte. */
- addr = address_significant (gdbarch, addr);
- /* Make sure we are dealing with a tagged address to begin with. */
- if (!aarch64_linux_tagged_address_p (gdbarch, address))
- return false;
- /* With G being the number of tag granules and N the number of tags
- passed in, we can have the following cases:
- 1 - G == N: Store all the N tags to memory.
- 2 - G < N : Warn about having more tags than granules, but write G
- tags.
- 3 - G > N : This is a "fill tags" operation. We should use the tags
- as a pattern to fill the granules repeatedly until we have
- written G tags to memory.
- */
- size_t g = aarch64_mte_get_tag_granules (addr, length,
- AARCH64_MTE_GRANULE_SIZE);
- size_t n = tags.size ();
- if (g < n)
- warning (_("Got more tags than memory granules. Tags will be "
- "truncated."));
- else if (g > n)
- warning (_("Using tag pattern to fill memory range."));
- if (!target_store_memtags (addr, length, tags,
- static_cast<int> (memtag_type::allocation)))
- return false;
- }
- return true;
- }
- /* Implement the get_memtag gdbarch method. */
- static struct value *
- aarch64_linux_get_memtag (struct gdbarch *gdbarch, struct value *address,
- memtag_type tag_type)
- {
- gdb_assert (address != nullptr);
- CORE_ADDR addr = value_as_address (address);
- CORE_ADDR tag = 0;
- /* Get the logical tag or the allocation tag. */
- if (tag_type == memtag_type::logical)
- tag = aarch64_mte_get_ltag (addr);
- else
- {
- /* Make sure we are dealing with a tagged address to begin with. */
- if (!aarch64_linux_tagged_address_p (gdbarch, address))
- return nullptr;
- /* Remove the top byte. */
- addr = address_significant (gdbarch, addr);
- gdb::optional<CORE_ADDR> atag = aarch64_mte_get_atag (addr);
- if (!atag.has_value ())
- return nullptr;
- tag = *atag;
- }
- /* Convert the tag to a value. */
- return value_from_ulongest (builtin_type (gdbarch)->builtin_unsigned_int,
- tag);
- }
- /* Implement the memtag_to_string gdbarch method. */
- static std::string
- aarch64_linux_memtag_to_string (struct gdbarch *gdbarch, struct value *tag_value)
- {
- if (tag_value == nullptr)
- return "";
- CORE_ADDR tag = value_as_address (tag_value);
- return string_printf ("0x%s", phex_nz (tag, sizeof (tag)));
- }
- /* AArch64 Linux implementation of the report_signal_info gdbarch
- hook. Displays information about possible memory tag violations. */
- static void
- aarch64_linux_report_signal_info (struct gdbarch *gdbarch,
- struct ui_out *uiout,
- enum gdb_signal siggnal)
- {
- aarch64_gdbarch_tdep *tdep = (aarch64_gdbarch_tdep *) gdbarch_tdep (gdbarch);
- if (!tdep->has_mte () || siggnal != GDB_SIGNAL_SEGV)
- return;
- CORE_ADDR fault_addr = 0;
- long si_code = 0;
- try
- {
- /* Sigcode tells us if the segfault is actually a memory tag
- violation. */
- si_code = parse_and_eval_long ("$_siginfo.si_code");
- fault_addr
- = parse_and_eval_long ("$_siginfo._sifields._sigfault.si_addr");
- }
- catch (const gdb_exception_error &exception)
- {
- exception_print (gdb_stderr, exception);
- return;
- }
- /* If this is not a memory tag violation, just return. */
- if (si_code != SEGV_MTEAERR && si_code != SEGV_MTESERR)
- return;
- uiout->text ("\n");
- uiout->field_string ("sigcode-meaning", _("Memory tag violation"));
- /* For synchronous faults, show additional information. */
- if (si_code == SEGV_MTESERR)
- {
- uiout->text (_(" while accessing address "));
- uiout->field_core_addr ("fault-addr", gdbarch, fault_addr);
- uiout->text ("\n");
- gdb::optional<CORE_ADDR> atag
- = aarch64_mte_get_atag (address_significant (gdbarch, fault_addr));
- gdb_byte ltag = aarch64_mte_get_ltag (fault_addr);
- if (!atag.has_value ())
- uiout->text (_("Allocation tag unavailable"));
- else
- {
- uiout->text (_("Allocation tag "));
- uiout->field_string ("allocation-tag", hex_string (*atag));
- uiout->text ("\n");
- uiout->text (_("Logical tag "));
- uiout->field_string ("logical-tag", hex_string (ltag));
- }
- }
- else
- {
- uiout->text ("\n");
- uiout->text (_("Fault address unavailable"));
- }
- }
- static void
- aarch64_linux_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch)
- {
- static const char *const stap_integer_prefixes[] = { "#", "", NULL };
- static const char *const stap_register_prefixes[] = { "", NULL };
- static const char *const stap_register_indirection_prefixes[] = { "[",
- NULL };
- static const char *const stap_register_indirection_suffixes[] = { "]",
- NULL };
- aarch64_gdbarch_tdep *tdep = (aarch64_gdbarch_tdep *) gdbarch_tdep (gdbarch);
- tdep->lowest_pc = 0x8000;
- linux_init_abi (info, gdbarch, 1);
- set_solib_svr4_fetch_link_map_offsets (gdbarch,
- linux_lp64_fetch_link_map_offsets);
- /* Enable TLS support. */
- set_gdbarch_fetch_tls_load_module_address (gdbarch,
- svr4_fetch_objfile_link_map);
- /* Shared library handling. */
- set_gdbarch_skip_trampoline_code (gdbarch, find_solib_trampoline_target);
- set_gdbarch_skip_solib_resolver (gdbarch, glibc_skip_solib_resolver);
- tramp_frame_prepend_unwinder (gdbarch, &aarch64_linux_rt_sigframe);
- /* Enable longjmp. */
- tdep->jb_pc = 11;
- set_gdbarch_iterate_over_regset_sections
- (gdbarch, aarch64_linux_iterate_over_regset_sections);
- set_gdbarch_core_read_description
- (gdbarch, aarch64_linux_core_read_description);
- /* SystemTap related. */
- set_gdbarch_stap_integer_prefixes (gdbarch, stap_integer_prefixes);
- set_gdbarch_stap_register_prefixes (gdbarch, stap_register_prefixes);
- set_gdbarch_stap_register_indirection_prefixes (gdbarch,
- stap_register_indirection_prefixes);
- set_gdbarch_stap_register_indirection_suffixes (gdbarch,
- stap_register_indirection_suffixes);
- set_gdbarch_stap_is_single_operand (gdbarch, aarch64_stap_is_single_operand);
- set_gdbarch_stap_parse_special_token (gdbarch,
- aarch64_stap_parse_special_token);
- /* Reversible debugging, process record. */
- set_gdbarch_process_record (gdbarch, aarch64_process_record);
- /* Syscall record. */
- tdep->aarch64_syscall_record = aarch64_linux_syscall_record;
- /* The top byte of a user space address known as the "tag",
- is ignored by the kernel and can be regarded as additional
- data associated with the address. */
- set_gdbarch_significant_addr_bit (gdbarch, 56);
- /* MTE-specific settings and hooks. */
- if (tdep->has_mte ())
- {
- /* Register a hook for checking if an address is tagged or not. */
- set_gdbarch_tagged_address_p (gdbarch, aarch64_linux_tagged_address_p);
- /* Register a hook for checking if there is a memory tag match. */
- set_gdbarch_memtag_matches_p (gdbarch,
- aarch64_linux_memtag_matches_p);
- /* Register a hook for setting the logical/allocation tags for
- a range of addresses. */
- set_gdbarch_set_memtags (gdbarch, aarch64_linux_set_memtags);
- /* Register a hook for extracting the logical/allocation tag from an
- address. */
- set_gdbarch_get_memtag (gdbarch, aarch64_linux_get_memtag);
- /* Set the allocation tag granule size to 16 bytes. */
- set_gdbarch_memtag_granule_size (gdbarch, AARCH64_MTE_GRANULE_SIZE);
- /* Register a hook for converting a memory tag to a string. */
- set_gdbarch_memtag_to_string (gdbarch, aarch64_linux_memtag_to_string);
- set_gdbarch_report_signal_info (gdbarch,
- aarch64_linux_report_signal_info);
- }
- /* Initialize the aarch64_linux_record_tdep. */
- /* These values are the size of the type that will be used in a system
- call. They are obtained from Linux Kernel source. */
- aarch64_linux_record_tdep.size_pointer
- = gdbarch_ptr_bit (gdbarch) / TARGET_CHAR_BIT;
- aarch64_linux_record_tdep.size__old_kernel_stat = 32;
- aarch64_linux_record_tdep.size_tms = 32;
- aarch64_linux_record_tdep.size_loff_t = 8;
- aarch64_linux_record_tdep.size_flock = 32;
- aarch64_linux_record_tdep.size_oldold_utsname = 45;
- aarch64_linux_record_tdep.size_ustat = 32;
- aarch64_linux_record_tdep.size_old_sigaction = 32;
- aarch64_linux_record_tdep.size_old_sigset_t = 8;
- aarch64_linux_record_tdep.size_rlimit = 16;
- aarch64_linux_record_tdep.size_rusage = 144;
- aarch64_linux_record_tdep.size_timeval = 16;
- aarch64_linux_record_tdep.size_timezone = 8;
- aarch64_linux_record_tdep.size_old_gid_t = 2;
- aarch64_linux_record_tdep.size_old_uid_t = 2;
- aarch64_linux_record_tdep.size_fd_set = 128;
- aarch64_linux_record_tdep.size_old_dirent = 280;
- aarch64_linux_record_tdep.size_statfs = 120;
- aarch64_linux_record_tdep.size_statfs64 = 120;
- aarch64_linux_record_tdep.size_sockaddr = 16;
- aarch64_linux_record_tdep.size_int
- = gdbarch_int_bit (gdbarch) / TARGET_CHAR_BIT;
- aarch64_linux_record_tdep.size_long
- = gdbarch_long_bit (gdbarch) / TARGET_CHAR_BIT;
- aarch64_linux_record_tdep.size_ulong
- = gdbarch_long_bit (gdbarch) / TARGET_CHAR_BIT;
- aarch64_linux_record_tdep.size_msghdr = 56;
- aarch64_linux_record_tdep.size_itimerval = 32;
- aarch64_linux_record_tdep.size_stat = 144;
- aarch64_linux_record_tdep.size_old_utsname = 325;
- aarch64_linux_record_tdep.size_sysinfo = 112;
- aarch64_linux_record_tdep.size_msqid_ds = 120;
- aarch64_linux_record_tdep.size_shmid_ds = 112;
- aarch64_linux_record_tdep.size_new_utsname = 390;
- aarch64_linux_record_tdep.size_timex = 208;
- aarch64_linux_record_tdep.size_mem_dqinfo = 24;
- aarch64_linux_record_tdep.size_if_dqblk = 72;
- aarch64_linux_record_tdep.size_fs_quota_stat = 80;
- aarch64_linux_record_tdep.size_timespec = 16;
- aarch64_linux_record_tdep.size_pollfd = 8;
- aarch64_linux_record_tdep.size_NFS_FHSIZE = 32;
- aarch64_linux_record_tdep.size_knfsd_fh = 132;
- aarch64_linux_record_tdep.size_TASK_COMM_LEN = 16;
- aarch64_linux_record_tdep.size_sigaction = 32;
- aarch64_linux_record_tdep.size_sigset_t = 8;
- aarch64_linux_record_tdep.size_siginfo_t = 128;
- aarch64_linux_record_tdep.size_cap_user_data_t = 8;
- aarch64_linux_record_tdep.size_stack_t = 24;
- aarch64_linux_record_tdep.size_off_t = 8;
- aarch64_linux_record_tdep.size_stat64 = 144;
- aarch64_linux_record_tdep.size_gid_t = 4;
- aarch64_linux_record_tdep.size_uid_t = 4;
- aarch64_linux_record_tdep.size_PAGE_SIZE = 4096;
- aarch64_linux_record_tdep.size_flock64 = 32;
- aarch64_linux_record_tdep.size_user_desc = 16;
- aarch64_linux_record_tdep.size_io_event = 32;
- aarch64_linux_record_tdep.size_iocb = 64;
- aarch64_linux_record_tdep.size_epoll_event = 12;
- aarch64_linux_record_tdep.size_itimerspec = 32;
- aarch64_linux_record_tdep.size_mq_attr = 64;
- aarch64_linux_record_tdep.size_termios = 36;
- aarch64_linux_record_tdep.size_termios2 = 44;
- aarch64_linux_record_tdep.size_pid_t = 4;
- aarch64_linux_record_tdep.size_winsize = 8;
- aarch64_linux_record_tdep.size_serial_struct = 72;
- aarch64_linux_record_tdep.size_serial_icounter_struct = 80;
- aarch64_linux_record_tdep.size_hayes_esp_config = 12;
- aarch64_linux_record_tdep.size_size_t = 8;
- aarch64_linux_record_tdep.size_iovec = 16;
- aarch64_linux_record_tdep.size_time_t = 8;
- /* These values are the second argument of system call "sys_ioctl".
- They are obtained from Linux Kernel source. */
- aarch64_linux_record_tdep.ioctl_TCGETS = 0x5401;
- aarch64_linux_record_tdep.ioctl_TCSETS = 0x5402;
- aarch64_linux_record_tdep.ioctl_TCSETSW = 0x5403;
- aarch64_linux_record_tdep.ioctl_TCSETSF = 0x5404;
- aarch64_linux_record_tdep.ioctl_TCGETA = 0x5405;
- aarch64_linux_record_tdep.ioctl_TCSETA = 0x5406;
- aarch64_linux_record_tdep.ioctl_TCSETAW = 0x5407;
- aarch64_linux_record_tdep.ioctl_TCSETAF = 0x5408;
- aarch64_linux_record_tdep.ioctl_TCSBRK = 0x5409;
- aarch64_linux_record_tdep.ioctl_TCXONC = 0x540a;
- aarch64_linux_record_tdep.ioctl_TCFLSH = 0x540b;
- aarch64_linux_record_tdep.ioctl_TIOCEXCL = 0x540c;
- aarch64_linux_record_tdep.ioctl_TIOCNXCL = 0x540d;
- aarch64_linux_record_tdep.ioctl_TIOCSCTTY = 0x540e;
- aarch64_linux_record_tdep.ioctl_TIOCGPGRP = 0x540f;
- aarch64_linux_record_tdep.ioctl_TIOCSPGRP = 0x5410;
- aarch64_linux_record_tdep.ioctl_TIOCOUTQ = 0x5411;
- aarch64_linux_record_tdep.ioctl_TIOCSTI = 0x5412;
- aarch64_linux_record_tdep.ioctl_TIOCGWINSZ = 0x5413;
- aarch64_linux_record_tdep.ioctl_TIOCSWINSZ = 0x5414;
- aarch64_linux_record_tdep.ioctl_TIOCMGET = 0x5415;
- aarch64_linux_record_tdep.ioctl_TIOCMBIS = 0x5416;
- aarch64_linux_record_tdep.ioctl_TIOCMBIC = 0x5417;
- aarch64_linux_record_tdep.ioctl_TIOCMSET = 0x5418;
- aarch64_linux_record_tdep.ioctl_TIOCGSOFTCAR = 0x5419;
- aarch64_linux_record_tdep.ioctl_TIOCSSOFTCAR = 0x541a;
- aarch64_linux_record_tdep.ioctl_FIONREAD = 0x541b;
- aarch64_linux_record_tdep.ioctl_TIOCINQ = 0x541b;
- aarch64_linux_record_tdep.ioctl_TIOCLINUX = 0x541c;
- aarch64_linux_record_tdep.ioctl_TIOCCONS = 0x541d;
- aarch64_linux_record_tdep.ioctl_TIOCGSERIAL = 0x541e;
- aarch64_linux_record_tdep.ioctl_TIOCSSERIAL = 0x541f;
- aarch64_linux_record_tdep.ioctl_TIOCPKT = 0x5420;
- aarch64_linux_record_tdep.ioctl_FIONBIO = 0x5421;
- aarch64_linux_record_tdep.ioctl_TIOCNOTTY = 0x5422;
- aarch64_linux_record_tdep.ioctl_TIOCSETD = 0x5423;
- aarch64_linux_record_tdep.ioctl_TIOCGETD = 0x5424;
- aarch64_linux_record_tdep.ioctl_TCSBRKP = 0x5425;
- aarch64_linux_record_tdep.ioctl_TIOCTTYGSTRUCT = 0x5426;
- aarch64_linux_record_tdep.ioctl_TIOCSBRK = 0x5427;
- aarch64_linux_record_tdep.ioctl_TIOCCBRK = 0x5428;
- aarch64_linux_record_tdep.ioctl_TIOCGSID = 0x5429;
- aarch64_linux_record_tdep.ioctl_TCGETS2 = 0x802c542a;
- aarch64_linux_record_tdep.ioctl_TCSETS2 = 0x402c542b;
- aarch64_linux_record_tdep.ioctl_TCSETSW2 = 0x402c542c;
- aarch64_linux_record_tdep.ioctl_TCSETSF2 = 0x402c542d;
- aarch64_linux_record_tdep.ioctl_TIOCGPTN = 0x80045430;
- aarch64_linux_record_tdep.ioctl_TIOCSPTLCK = 0x40045431;
- aarch64_linux_record_tdep.ioctl_FIONCLEX = 0x5450;
- aarch64_linux_record_tdep.ioctl_FIOCLEX = 0x5451;
- aarch64_linux_record_tdep.ioctl_FIOASYNC = 0x5452;
- aarch64_linux_record_tdep.ioctl_TIOCSERCONFIG = 0x5453;
- aarch64_linux_record_tdep.ioctl_TIOCSERGWILD = 0x5454;
- aarch64_linux_record_tdep.ioctl_TIOCSERSWILD = 0x5455;
- aarch64_linux_record_tdep.ioctl_TIOCGLCKTRMIOS = 0x5456;
- aarch64_linux_record_tdep.ioctl_TIOCSLCKTRMIOS = 0x5457;
- aarch64_linux_record_tdep.ioctl_TIOCSERGSTRUCT = 0x5458;
- aarch64_linux_record_tdep.ioctl_TIOCSERGETLSR = 0x5459;
- aarch64_linux_record_tdep.ioctl_TIOCSERGETMULTI = 0x545a;
- aarch64_linux_record_tdep.ioctl_TIOCSERSETMULTI = 0x545b;
- aarch64_linux_record_tdep.ioctl_TIOCMIWAIT = 0x545c;
- aarch64_linux_record_tdep.ioctl_TIOCGICOUNT = 0x545d;
- aarch64_linux_record_tdep.ioctl_TIOCGHAYESESP = 0x545e;
- aarch64_linux_record_tdep.ioctl_TIOCSHAYESESP = 0x545f;
- aarch64_linux_record_tdep.ioctl_FIOQSIZE = 0x5460;
- /* These values are the second argument of system call "sys_fcntl"
- and "sys_fcntl64". They are obtained from Linux Kernel source. */
- aarch64_linux_record_tdep.fcntl_F_GETLK = 5;
- aarch64_linux_record_tdep.fcntl_F_GETLK64 = 12;
- aarch64_linux_record_tdep.fcntl_F_SETLK64 = 13;
- aarch64_linux_record_tdep.fcntl_F_SETLKW64 = 14;
- /* The AArch64 syscall calling convention: reg x0-x6 for arguments,
- reg x8 for syscall number and return value in reg x0. */
- aarch64_linux_record_tdep.arg1 = AARCH64_X0_REGNUM + 0;
- aarch64_linux_record_tdep.arg2 = AARCH64_X0_REGNUM + 1;
- aarch64_linux_record_tdep.arg3 = AARCH64_X0_REGNUM + 2;
- aarch64_linux_record_tdep.arg4 = AARCH64_X0_REGNUM + 3;
- aarch64_linux_record_tdep.arg5 = AARCH64_X0_REGNUM + 4;
- aarch64_linux_record_tdep.arg6 = AARCH64_X0_REGNUM + 5;
- aarch64_linux_record_tdep.arg7 = AARCH64_X0_REGNUM + 6;
- /* `catch syscall' */
- set_xml_syscall_file_name (gdbarch, "syscalls/aarch64-linux.xml");
- set_gdbarch_get_syscall_number (gdbarch, aarch64_linux_get_syscall_number);
- /* Displaced stepping. */
- set_gdbarch_max_insn_length (gdbarch, 4 * AARCH64_DISPLACED_MODIFIED_INSNS);
- set_gdbarch_displaced_step_copy_insn (gdbarch,
- aarch64_displaced_step_copy_insn);
- set_gdbarch_displaced_step_fixup (gdbarch, aarch64_displaced_step_fixup);
- set_gdbarch_displaced_step_hw_singlestep (gdbarch,
- aarch64_displaced_step_hw_singlestep);
- set_gdbarch_gcc_target_options (gdbarch, aarch64_linux_gcc_target_options);
- }
- #if GDB_SELF_TEST
- namespace selftests {
- /* Verify functions to read and write logical tags. */
- static void
- aarch64_linux_ltag_tests (void)
- {
- /* We have 4 bits of tags, but we test writing all the bits of the top
- byte of address. */
- for (int i = 0; i < 1 << 8; i++)
- {
- CORE_ADDR addr = ((CORE_ADDR) i << 56) | 0xdeadbeef;
- SELF_CHECK (aarch64_mte_get_ltag (addr) == (i & 0xf));
- addr = aarch64_mte_set_ltag (0xdeadbeef, i);
- SELF_CHECK (addr = ((CORE_ADDR) (i & 0xf) << 56) | 0xdeadbeef);
- }
- }
- } // namespace selftests
- #endif /* GDB_SELF_TEST */
- void _initialize_aarch64_linux_tdep ();
- void
- _initialize_aarch64_linux_tdep ()
- {
- gdbarch_register_osabi (bfd_arch_aarch64, 0, GDB_OSABI_LINUX,
- aarch64_linux_init_abi);
- #if GDB_SELF_TEST
- selftests::register_test ("aarch64-linux-tagged-address",
- selftests::aarch64_linux_ltag_tests);
- #endif
- }
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