173 lines
5.2 KiB
C
173 lines
5.2 KiB
C
/* AArch64 specific core note handling.
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Copyright (C) 2013 Red Hat, Inc.
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This file is part of elfutils.
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This file is free software; you can redistribute it and/or modify
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it under the terms of either
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* the GNU Lesser General Public License as published by the Free
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Software Foundation; either version 3 of the License, or (at
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your option) any later version
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or
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* the GNU General Public License as published by the Free
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Software Foundation; either version 2 of the License, or (at
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your option) any later version
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or both in parallel, as here.
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elfutils is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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General Public License for more details.
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You should have received copies of the GNU General Public License and
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the GNU Lesser General Public License along with this program. If
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not, see <http://www.gnu.org/licenses/>. */
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#ifdef HAVE_CONFIG_H
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# include <config.h>
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#endif
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#include <elf.h>
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#include <inttypes.h>
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#include <stddef.h>
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#include <stdio.h>
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#include <sys/time.h>
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#define BACKEND aarch64_
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#include "libebl_CPU.h"
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#define ULONG uint64_t
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#define PID_T int32_t
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#define UID_T uint32_t
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#define GID_T uint32_t
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#define ALIGN_ULONG 8
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#define ALIGN_PID_T 4
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#define ALIGN_UID_T 4
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#define ALIGN_GID_T 4
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#define TYPE_ULONG ELF_T_XWORD
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#define TYPE_PID_T ELF_T_SWORD
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#define TYPE_UID_T ELF_T_WORD
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#define TYPE_GID_T ELF_T_WORD
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#define PRSTATUS_REGS_SIZE (34 * 8)
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static const Ebl_Register_Location prstatus_regs[] =
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{
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{ .offset = 0, .regno = 0, .count = 32, .bits = 64 }, /* x0..x30, sp */
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};
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#define PRSTATUS_REGSET_ITEMS \
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{ \
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.name = "pc", .type = ELF_T_XWORD, .format = 'x', \
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.offset = (offsetof (struct EBLHOOK(prstatus), pr_reg) \
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+ PRSTATUS_REGS_SIZE - 16), \
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.group = "register", \
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.pc_register = true \
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}, \
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{ \
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.name = "pstate", .type = ELF_T_XWORD, .format = 'x', \
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.offset = (offsetof (struct EBLHOOK(prstatus), pr_reg) \
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+ PRSTATUS_REGS_SIZE - 8), \
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.group = "register" \
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}
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static const Ebl_Register_Location aarch64_fpregset_regs[] =
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{
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{ .offset = 0, .regno = 64, .count = 32, .bits = 128 }, /* v0..v31 */
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};
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static const Ebl_Core_Item aarch64_fpregset_items[] =
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{
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{
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.name = "fpsr", .type = ELF_T_WORD, .format = 'x',
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.offset = 512, .group = "register"
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},
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{
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.name = "fpcr", .type = ELF_T_WORD, .format = 'x',
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.offset = 516, .group = "register"
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}
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};
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static const Ebl_Core_Item aarch64_tls_items[] =
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{
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{
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.name = "tls", .type = ELF_T_XWORD, .format = 'x',
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.offset = 0, .group = "register"
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}
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};
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static const Ebl_Core_Item aarch64_syscall_items [] =
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{
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{
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.name = "syscall", .type = ELF_T_WORD, .format = 'x',
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.offset = 0, .group = "register"
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}
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};
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#define AARCH64_HWBP_REG(KIND, N) \
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{ \
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.name = "DBG" KIND "VR" #N "_EL1", .type = ELF_T_XWORD, .format = 'x', \
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.offset = 8 + N * 16, .group = "register" \
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}, \
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{ \
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.name = "DBG" KIND "CR" #N "_EL1", .type = ELF_T_WORD, .format = 'x', \
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.offset = 16 + N * 16, .group = "register" \
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}
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#define AARCH64_BP_WP_GROUP(KIND, NAME) \
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static const Ebl_Core_Item NAME[] = \
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{ \
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{ \
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.name = "dbg_info", .type = ELF_T_WORD, .format = 'x', \
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.offset = 0, .group = "control" \
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}, \
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/* N.B.: 4 bytes of padding here. */ \
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\
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AARCH64_HWBP_REG(KIND, 0), \
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AARCH64_HWBP_REG(KIND, 1), \
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AARCH64_HWBP_REG(KIND, 2), \
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AARCH64_HWBP_REG(KIND, 3), \
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AARCH64_HWBP_REG(KIND, 4), \
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AARCH64_HWBP_REG(KIND, 5), \
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AARCH64_HWBP_REG(KIND, 6), \
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AARCH64_HWBP_REG(KIND, 7), \
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AARCH64_HWBP_REG(KIND, 8), \
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AARCH64_HWBP_REG(KIND, 9), \
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AARCH64_HWBP_REG(KIND, 10), \
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AARCH64_HWBP_REG(KIND, 11), \
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AARCH64_HWBP_REG(KIND, 12), \
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AARCH64_HWBP_REG(KIND, 13), \
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AARCH64_HWBP_REG(KIND, 14), \
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AARCH64_HWBP_REG(KIND, 15), \
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\
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/* The DBGBVR+DBGBCR pair only takes 12 bytes. There are 4 bytes \
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of padding at the end of each pair. The item formatter in \
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readelf can skip those, but the missing 4 bytes at the end of \
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the whole block cause it to assume the whole item bunch \
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repeats, so it loops around to read more. Insert an explicit \
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(but invisible) padding word. */ \
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{ \
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.name = "", .type = ELF_T_WORD, .format = 'h', \
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.offset = 260, .group = "register" \
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} \
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}
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AARCH64_BP_WP_GROUP ("B", aarch64_hw_bp_items);
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AARCH64_BP_WP_GROUP ("W", aarch64_hw_wp_items);
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#undef AARCH64_BP_WP_GROUP
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#undef AARCH64_HWBP_REG
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#define EXTRA_NOTES \
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EXTRA_REGSET_ITEMS (NT_FPREGSET, 528, \
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aarch64_fpregset_regs, aarch64_fpregset_items) \
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EXTRA_ITEMS (NT_ARM_TLS, 8, aarch64_tls_items) \
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EXTRA_ITEMS (NT_ARM_HW_BREAK, 264, aarch64_hw_bp_items) \
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EXTRA_ITEMS (NT_ARM_HW_WATCH, 264, aarch64_hw_wp_items) \
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EXTRA_ITEMS (NT_ARM_SYSTEM_CALL, 4, aarch64_syscall_items)
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#include "linux-core-note.c"
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