/* * Copyright (C) 2012 ARM Ltd. * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 as * published by the Free Software Foundation. * * 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/>. */ #ifndef __ASM_DEBUG_MONITORS_H #define __ASM_DEBUG_MONITORS_H #ifdef __KERNEL__ #include <linux/errno.h> #include <linux/types.h> #include <asm/brk-imm.h> #include <asm/esr.h> #include <asm/insn.h> #include <asm/ptrace.h> /* Low-level stepping controls. */ #define DBG_MDSCR_SS (1 << 0) #define DBG_SPSR_SS (1 << 21) /* MDSCR_EL1 enabling bits */ #define DBG_MDSCR_KDE (1 << 13) #define DBG_MDSCR_MDE (1 << 15) #define DBG_MDSCR_MASK ~(DBG_MDSCR_KDE | DBG_MDSCR_MDE) #define DBG_ESR_EVT(x) (((x) >> 27) & 0x7) /* AArch64 */ #define DBG_ESR_EVT_HWBP 0x0 #define DBG_ESR_EVT_HWSS 0x1 #define DBG_ESR_EVT_HWWP 0x2 #define DBG_ESR_EVT_BRK 0x6 /* * Break point instruction encoding */ #define BREAK_INSTR_SIZE AARCH64_INSN_SIZE /* * BRK instruction encoding * The #imm16 value should be placed at bits[20:5] within BRK ins */ #define AARCH64_BREAK_MON 0xd4200000 /* * BRK instruction for provoking a fault on purpose * Unlike kgdb, #imm16 value with unallocated handler is used for faulting. */ #define AARCH64_BREAK_FAULT (AARCH64_BREAK_MON | (FAULT_BRK_IMM << 5)) #define AARCH64_BREAK_KGDB_DYN_DBG \ (AARCH64_BREAK_MON | (KGDB_DYN_DBG_BRK_IMM << 5)) #define CACHE_FLUSH_IS_SAFE 1 /* kprobes BRK opcodes with ESR encoding */ #define BRK64_ESR_MASK 0xFFFF #define BRK64_ESR_KPROBES 0x0004 #define BRK64_OPCODE_KPROBES (AARCH64_BREAK_MON | (BRK64_ESR_KPROBES << 5)) /* uprobes BRK opcodes with ESR encoding */ #define BRK64_ESR_UPROBES 0x0005 #define BRK64_OPCODE_UPROBES (AARCH64_BREAK_MON | (BRK64_ESR_UPROBES << 5)) /* AArch32 */ #define DBG_ESR_EVT_BKPT 0x4 #define DBG_ESR_EVT_VECC 0x5 #define AARCH32_BREAK_ARM 0x07f001f0 #define AARCH32_BREAK_THUMB 0xde01 #define AARCH32_BREAK_THUMB2_LO 0xf7f0 #define AARCH32_BREAK_THUMB2_HI 0xa000 #ifndef __ASSEMBLY__ struct task_struct; #define DBG_ARCH_ID_RESERVED 0 /* In case of ptrace ABI updates. */ #define DBG_HOOK_HANDLED 0 #define DBG_HOOK_ERROR 1 struct step_hook { struct list_head node; int (*fn)(struct pt_regs *regs, unsigned int esr); }; void register_step_hook(struct step_hook *hook); void unregister_step_hook(struct step_hook *hook); struct break_hook { struct list_head node; u32 esr_val; u32 esr_mask; int (*fn)(struct pt_regs *regs, unsigned int esr); }; void register_break_hook(struct break_hook *hook); void unregister_break_hook(struct break_hook *hook); u8 debug_monitors_arch(void); enum dbg_active_el { DBG_ACTIVE_EL0 = 0, DBG_ACTIVE_EL1, }; void enable_debug_monitors(enum dbg_active_el el); void disable_debug_monitors(enum dbg_active_el el); void user_rewind_single_step(struct task_struct *task); void user_fastforward_single_step(struct task_struct *task); void user_regs_reset_single_step(struct user_pt_regs *regs, struct task_struct *task); void kernel_enable_single_step(struct pt_regs *regs); void kernel_disable_single_step(void); int kernel_active_single_step(void); #ifdef CONFIG_HAVE_HW_BREAKPOINT int reinstall_suspended_bps(struct pt_regs *regs); #else static inline int reinstall_suspended_bps(struct pt_regs *regs) { return -ENODEV; } #endif int aarch32_break_handler(struct pt_regs *regs); #endif /* __ASSEMBLY */ #endif /* __KERNEL__ */ #endif /* __ASM_DEBUG_MONITORS_H */
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xen | Folder | 0755 |
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Kbuild | File | 703 B | 0644 |
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acenv.h | File | 541 B | 0644 |
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acpi.h | File | 4.34 KB | 0644 |
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alternative.h | File | 7.63 KB | 0644 |
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arch_gicv3.h | File | 3.44 KB | 0644 |
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arch_timer.h | File | 4.87 KB | 0644 |
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arm-cci.h | File | 794 B | 0644 |
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asm-bug.h | File | 1.45 KB | 0644 |
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asm-offsets.h | File | 35 B | 0644 |
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asm-uaccess.h | File | 2.09 KB | 0644 |
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assembler.h | File | 13.51 KB | 0644 |
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atomic.h | File | 8.35 KB | 0644 |
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atomic_ll_sc.h | File | 10.61 KB | 0644 |
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atomic_lse.h | File | 14.82 KB | 0644 |
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barrier.h | File | 3.78 KB | 0644 |
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bitops.h | File | 1.9 KB | 0644 |
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bitrev.h | File | 452 B | 0644 |
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boot.h | File | 384 B | 0644 |
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brk-imm.h | File | 706 B | 0644 |
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bug.h | File | 1.09 KB | 0644 |
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cache.h | File | 2.23 KB | 0644 |
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cacheflush.h | File | 4.87 KB | 0644 |
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checksum.h | File | 1.35 KB | 0644 |
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clocksource.h | File | 192 B | 0644 |
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cmpxchg.h | File | 7.98 KB | 0644 |
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compat.h | File | 7.15 KB | 0644 |
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compiler.h | File | 1.18 KB | 0644 |
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cpu.h | File | 1.84 KB | 0644 |
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cpu_ops.h | File | 2.73 KB | 0644 |
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cpucaps.h | File | 1.87 KB | 0644 |
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cpufeature.h | File | 19.14 KB | 0644 |
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cpuidle.h | File | 401 B | 0644 |
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cputype.h | File | 8.1 KB | 0644 |
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current.h | File | 517 B | 0644 |
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daifflags.h | File | 1.59 KB | 0644 |
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dcc.h | File | 1.36 KB | 0644 |
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debug-monitors.h | File | 3.76 KB | 0644 |
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device.h | File | 886 B | 0644 |
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dma-mapping.h | File | 2.42 KB | 0644 |
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dmi.h | File | 850 B | 0644 |
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efi.h | File | 4.57 KB | 0644 |
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elf.h | File | 5.7 KB | 0644 |
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esr.h | File | 9.02 KB | 0644 |
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exception.h | File | 1.21 KB | 0644 |
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exec.h | File | 868 B | 0644 |
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extable.h | File | 815 B | 0644 |
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fb.h | File | 1000 B | 0644 |
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fixmap.h | File | 2.91 KB | 0644 |
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fpsimd.h | File | 4.21 KB | 0644 |
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fpsimdmacros.h | File | 5.62 KB | 0644 |
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ftrace.h | File | 1.92 KB | 0644 |
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futex.h | File | 3.41 KB | 0644 |
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hardirq.h | File | 2.08 KB | 0644 |
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hugetlb.h | File | 2.71 KB | 0644 |
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hw_breakpoint.h | File | 4.46 KB | 0644 |
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hwcap.h | File | 1.86 KB | 0644 |
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hypervisor.h | File | 144 B | 0644 |
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insn.h | File | 16.03 KB | 0644 |
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io.h | File | 7.72 KB | 0644 |
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irq.h | File | 307 B | 0644 |
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irq_work.h | File | 228 B | 0644 |
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irqflags.h | File | 2.3 KB | 0644 |
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jump_label.h | File | 1.68 KB | 0644 |
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kasan.h | File | 1.16 KB | 0644 |
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kernel-pgtable.h | File | 4.03 KB | 0644 |
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kexec.h | File | 2.42 KB | 0644 |
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kgdb.h | File | 3.79 KB | 0644 |
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kprobes.h | File | 1.74 KB | 0644 |
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kvm_arm.h | File | 8.38 KB | 0644 |
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kvm_asm.h | File | 4.26 KB | 0644 |
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kvm_coproc.h | File | 2.04 KB | 0644 |
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kvm_emulate.h | File | 10.38 KB | 0644 |
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kvm_host.h | File | 15.73 KB | 0644 |
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kvm_hyp.h | File | 5.79 KB | 0644 |
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kvm_mmio.h | File | 1.3 KB | 0644 |
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kvm_mmu.h | File | 11.72 KB | 0644 |
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linkage.h | File | 114 B | 0644 |
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lse.h | File | 1.26 KB | 0644 |
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memblock.h | File | 720 B | 0644 |
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memory.h | File | 9.16 KB | 0644 |
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mmu.h | File | 2.76 KB | 0644 |
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mmu_context.h | File | 6.35 KB | 0644 |
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mmzone.h | File | 266 B | 0644 |
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module.h | File | 2.8 KB | 0644 |
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neon.h | File | 815 B | 0644 |
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numa.h | File | 1.33 KB | 0644 |
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page-def.h | File | 1.17 KB | 0644 |
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page.h | File | 1.61 KB | 0644 |
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paravirt.h | File | 458 B | 0644 |
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pci.h | File | 878 B | 0644 |
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percpu.h | File | 7.48 KB | 0644 |
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perf_event.h | File | 3.17 KB | 0644 |
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pgalloc.h | File | 3.71 KB | 0644 |
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pgtable-hwdef.h | File | 9.4 KB | 0644 |
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pgtable-prot.h | File | 4.38 KB | 0644 |
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pgtable-types.h | File | 1.84 KB | 0644 |
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pgtable.h | File | 21.55 KB | 0644 |
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probes.h | File | 1022 B | 0644 |
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proc-fns.h | File | 1.21 KB | 0644 |
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processor.h | File | 6.52 KB | 0644 |
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ptdump.h | File | 1.42 KB | 0644 |
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ptrace.h | File | 9 KB | 0644 |
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sdei.h | File | 1.46 KB | 0644 |
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seccomp.h | File | 714 B | 0644 |
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sections.h | File | 1.46 KB | 0644 |
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shmparam.h | File | 965 B | 0644 |
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signal32.h | File | 1.45 KB | 0644 |
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simd.h | File | 1.39 KB | 0644 |
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smp.h | File | 4.23 KB | 0644 |
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smp_plat.h | File | 1.43 KB | 0644 |
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sparsemem.h | File | 771 B | 0644 |
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spinlock.h | File | 3.33 KB | 0644 |
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spinlock_types.h | File | 1.06 KB | 0644 |
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stack_pointer.h | File | 247 B | 0644 |
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stackprotector.h | File | 1.11 KB | 0644 |
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stacktrace.h | File | 2.53 KB | 0644 |
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stage2_pgtable-nopmd.h | File | 1.3 KB | 0644 |
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stage2_pgtable-nopud.h | File | 1.24 KB | 0644 |
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stage2_pgtable.h | File | 4.89 KB | 0644 |
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stat.h | File | 1.43 KB | 0644 |
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string.h | File | 2.33 KB | 0644 |
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suspend.h | File | 1.65 KB | 0644 |
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sync_bitops.h | File | 1.11 KB | 0644 |
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syscall.h | File | 2.87 KB | 0644 |
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sysreg.h | File | 25.1 KB | 0644 |
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system_misc.h | File | 1.86 KB | 0644 |
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thread_info.h | File | 3.93 KB | 0644 |
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timex.h | File | 883 B | 0644 |
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tlb.h | File | 2.22 KB | 0644 |
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tlbflush.h | File | 5.38 KB | 0644 |
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topology.h | File | 1.29 KB | 0644 |
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traps.h | File | 3.33 KB | 0644 |
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uaccess.h | File | 12.01 KB | 0644 |
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unistd.h | File | 1.6 KB | 0644 |
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unistd32.h | File | 27.53 KB | 0644 |
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uprobes.h | File | 777 B | 0644 |
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vdso.h | File | 1.09 KB | 0644 |
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vdso_datapage.h | File | 1.53 KB | 0644 |
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vectors.h | File | 1.75 KB | 0644 |
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virt.h | File | 3 KB | 0644 |
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vmap_stack.h | File | 769 B | 0644 |
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word-at-a-time.h | File | 2.22 KB | 0644 |
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