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| author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-27 10:05:51 +0000 |
|---|---|---|
| committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-27 10:05:51 +0000 |
| commit | 5d1646d90e1f2cceb9f0828f4b28318cd0ec7744 (patch) | |
| tree | a94efe259b9009378be6d90eb30d2b019d95c194 /arch/xtensa/include/asm/hw_breakpoint.h | |
| parent | Initial commit. (diff) | |
| download | linux-5d1646d90e1f2cceb9f0828f4b28318cd0ec7744.tar.xz linux-5d1646d90e1f2cceb9f0828f4b28318cd0ec7744.zip | |
Adding upstream version 5.10.209.upstream/5.10.209
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'arch/xtensa/include/asm/hw_breakpoint.h')
| -rw-r--r-- | arch/xtensa/include/asm/hw_breakpoint.h | 61 |
1 files changed, 61 insertions, 0 deletions
diff --git a/arch/xtensa/include/asm/hw_breakpoint.h b/arch/xtensa/include/asm/hw_breakpoint.h new file mode 100644 index 000000000..9f119c1ca --- /dev/null +++ b/arch/xtensa/include/asm/hw_breakpoint.h @@ -0,0 +1,61 @@ +/* + * Xtensa hardware breakpoints/watchpoints handling functions + * + * This file is subject to the terms and conditions of the GNU General Public + * License. See the file "COPYING" in the main directory of this archive + * for more details. + * + * Copyright (C) 2016 Cadence Design Systems Inc. + */ + +#ifndef __ASM_XTENSA_HW_BREAKPOINT_H +#define __ASM_XTENSA_HW_BREAKPOINT_H + +#ifdef CONFIG_HAVE_HW_BREAKPOINT + +#include <linux/kdebug.h> +#include <linux/types.h> +#include <uapi/linux/hw_breakpoint.h> + +/* Breakpoint */ +#define XTENSA_BREAKPOINT_EXECUTE 0 + +/* Watchpoints */ +#define XTENSA_BREAKPOINT_LOAD 1 +#define XTENSA_BREAKPOINT_STORE 2 + +struct arch_hw_breakpoint { + unsigned long address; + u16 len; + u16 type; +}; + +struct perf_event_attr; +struct perf_event; +struct pt_regs; +struct task_struct; + +int hw_breakpoint_slots(int type); +int arch_check_bp_in_kernelspace(struct arch_hw_breakpoint *hw); +int hw_breakpoint_arch_parse(struct perf_event *bp, + const struct perf_event_attr *attr, + struct arch_hw_breakpoint *hw); +int hw_breakpoint_exceptions_notify(struct notifier_block *unused, + unsigned long val, void *data); + +int arch_install_hw_breakpoint(struct perf_event *bp); +void arch_uninstall_hw_breakpoint(struct perf_event *bp); +void hw_breakpoint_pmu_read(struct perf_event *bp); +int check_hw_breakpoint(struct pt_regs *regs); +void clear_ptrace_hw_breakpoint(struct task_struct *tsk); + +#else + +struct task_struct; + +static inline void clear_ptrace_hw_breakpoint(struct task_struct *tsk) +{ +} + +#endif /* CONFIG_HAVE_HW_BREAKPOINT */ +#endif /* __ASM_XTENSA_HW_BREAKPOINT_H */ |