/* SPDX-License-Identifier: GPL-2.0+ */ #ifndef _ASM_S390_KPROBES_H #define _ASM_S390_KPROBES_H /* * Kernel Probes (KProbes) * * Copyright IBM Corp. 2002, 2006 * * 2002-Oct Created by Vamsi Krishna S <vamsi_krishna@in.ibm.com> Kernel * Probes initial implementation ( includes suggestions from * Rusty Russell). * 2004-Nov Modified for PPC64 by Ananth N Mavinakayanahalli * <ananth@in.ibm.com> * 2005-Dec Used as a template for s390 by Mike Grundy * <grundym@us.ibm.com> */ #include <linux/types.h> #include <asm-generic/kprobes.h> #define BREAKPOINT_INSTRUCTION 0x0002 #define FIXUP_PSW_NORMAL 0x08 #define FIXUP_BRANCH_NOT_TAKEN 0x04 #define FIXUP_RETURN_REGISTER 0x02 #define FIXUP_NOT_REQUIRED 0x01 int probe_is_prohibited_opcode(u16 *insn); int probe_get_fixup_type(u16 *insn); int probe_is_insn_relative_long(u16 *insn); #ifdef CONFIG_KPROBES #include <linux/ptrace.h> #include <linux/percpu.h> #include <linux/sched/task_stack.h> #define __ARCH_WANT_KPROBES_INSN_SLOT struct pt_regs; struct kprobe; typedef u16 kprobe_opcode_t; /* Maximum instruction size is 3 (16bit) halfwords: */ #define MAX_INSN_SIZE 0x0003 #define MAX_STACK_SIZE 64 #define MIN_STACK_SIZE(ADDR) (((MAX_STACK_SIZE) < \ (((unsigned long)task_stack_page(current)) + THREAD_SIZE - (ADDR))) \ ? (MAX_STACK_SIZE) \ : (((unsigned long)task_stack_page(current)) + THREAD_SIZE - (ADDR))) #define kretprobe_blacklist_size 0 /* Architecture specific copy of original instruction */ struct arch_specific_insn { /* copy of original instruction */ kprobe_opcode_t *insn; unsigned int is_ftrace_insn : 1; }; struct prev_kprobe { struct kprobe *kp; unsigned long status; }; /* per-cpu kprobe control block */ struct kprobe_ctlblk { unsigned long kprobe_status; unsigned long kprobe_saved_imask; unsigned long kprobe_saved_ctl[3]; struct prev_kprobe prev_kprobe; struct pt_regs jprobe_saved_regs; kprobe_opcode_t jprobes_stack[MAX_STACK_SIZE]; }; void arch_remove_kprobe(struct kprobe *p); void kretprobe_trampoline(void); int kprobe_fault_handler(struct pt_regs *regs, int trapnr); int kprobe_exceptions_notify(struct notifier_block *self, unsigned long val, void *data); #define flush_insn_slot(p) do { } while (0) #endif /* CONFIG_KPROBES */ #endif /* _ASM_S390_KPROBES_H */Overall Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Michael Grundy | 132 | 58.41% | 1 | 8.33% |
| Heiko Carstens | 54 | 23.89% | 4 | 33.33% |
| Christoph Hellwig | 14 | 6.19% | 1 | 8.33% |
| Luis R. Rodriguez | 13 | 5.75% | 1 | 8.33% |
| Martin Schwidefsky | 4 | 1.77% | 1 | 8.33% |
| Masami Hiramatsu | 4 | 1.77% | 1 | 8.33% |
| Ingo Molnar | 3 | 1.33% | 1 | 8.33% |
| Greg Kroah-Hartman | 2 | 0.88% | 2 | 16.67% |
| Total | 226 | 100.00% | 12 | 100.00% |