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https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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287d163322
While the GCC and Clang compilers already define __ASSEMBLER__ automatically when compiling assembly code, __ASSEMBLY__ is a macro that only gets defined by the Makefiles in the kernel. This can be very confusing when switching between userspace and kernelspace coding, or when dealing with uapi headers that rather should use __ASSEMBLER__ instead. So let's standardize now on the __ASSEMBLER__ macro that is provided by the compilers. This is a mostly mechanical patch (done with a simple "sed -i" statement), except for the following files where comments with mis-spelled macros were tweaked manually: arch/arm64/include/asm/stacktrace/frame.h arch/arm64/include/asm/kvm_ptrauth.h arch/arm64/include/asm/debug-monitors.h arch/arm64/include/asm/esr.h arch/arm64/include/asm/scs.h arch/arm64/include/asm/memory.h Signed-off-by: Thomas Huth <thuth@redhat.com> Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
93 lines
2.4 KiB
C
93 lines
2.4 KiB
C
/* SPDX-License-Identifier: GPL-2.0-only */
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/*
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* Copyright (C) 2012 ARM Ltd.
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*/
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#ifndef __ASM_DEBUG_MONITORS_H
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#define __ASM_DEBUG_MONITORS_H
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#include <linux/errno.h>
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#include <linux/types.h>
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#include <asm/brk-imm.h>
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#include <asm/esr.h>
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#include <asm/insn.h>
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#include <asm/ptrace.h>
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/* Low-level stepping controls. */
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#define DBG_SPSR_SS (1 << 21)
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#define DBG_ESR_EVT(x) (((x) >> 27) & 0x7)
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/* AArch64 */
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#define DBG_ESR_EVT_HWBP 0x0
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#define DBG_ESR_EVT_HWSS 0x1
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#define DBG_ESR_EVT_HWWP 0x2
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#define DBG_ESR_EVT_BRK 0x6
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/*
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* Break point instruction encoding
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*/
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#define BREAK_INSTR_SIZE AARCH64_INSN_SIZE
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#define AARCH64_BREAK_KGDB_DYN_DBG \
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(AARCH64_BREAK_MON | (KGDB_DYN_DBG_BRK_IMM << 5))
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#define CACHE_FLUSH_IS_SAFE 1
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/* kprobes BRK opcodes with ESR encoding */
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#define BRK64_OPCODE_KPROBES (AARCH64_BREAK_MON | (KPROBES_BRK_IMM << 5))
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#define BRK64_OPCODE_KPROBES_SS (AARCH64_BREAK_MON | (KPROBES_BRK_SS_IMM << 5))
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/* uprobes BRK opcodes with ESR encoding */
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#define BRK64_OPCODE_UPROBES (AARCH64_BREAK_MON | (UPROBES_BRK_IMM << 5))
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/* AArch32 */
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#define DBG_ESR_EVT_BKPT 0x4
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#define DBG_ESR_EVT_VECC 0x5
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#define AARCH32_BREAK_ARM 0x07f001f0
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#define AARCH32_BREAK_THUMB 0xde01
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#define AARCH32_BREAK_THUMB2_LO 0xf7f0
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#define AARCH32_BREAK_THUMB2_HI 0xa000
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#ifndef __ASSEMBLER__
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struct task_struct;
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#define DBG_ARCH_ID_RESERVED 0 /* In case of ptrace ABI updates. */
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#define DBG_HOOK_HANDLED 0
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#define DBG_HOOK_ERROR 1
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u8 debug_monitors_arch(void);
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enum dbg_active_el {
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DBG_ACTIVE_EL0 = 0,
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DBG_ACTIVE_EL1,
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};
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void enable_debug_monitors(enum dbg_active_el el);
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void disable_debug_monitors(enum dbg_active_el el);
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void user_rewind_single_step(struct task_struct *task);
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void user_fastforward_single_step(struct task_struct *task);
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void user_regs_reset_single_step(struct user_pt_regs *regs,
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struct task_struct *task);
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void kernel_enable_single_step(struct pt_regs *regs);
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void kernel_disable_single_step(void);
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int kernel_active_single_step(void);
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void kernel_rewind_single_step(struct pt_regs *regs);
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void kernel_fastforward_single_step(struct pt_regs *regs);
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#ifdef CONFIG_HAVE_HW_BREAKPOINT
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bool try_step_suspended_breakpoints(struct pt_regs *regs);
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#else
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static inline bool try_step_suspended_breakpoints(struct pt_regs *regs)
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{
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return false;
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}
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#endif
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bool try_handle_aarch32_break(struct pt_regs *regs);
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#endif /* __ASSEMBLER__ */
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#endif /* __ASM_DEBUG_MONITORS_H */
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