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Linux kernel mirror (for testing) git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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12345678910111213141516171819202122232425262728293031323334353637383940414243444546474849505152535455565758596061626364656667686970717273747576777879808182838485/* SPDX-License-Identifier: GPL-2.0 *//* * Created by: Jason Wessel <jason.wessel@windriver.com> * * Copyright (c) 2009 Wind River Systems, Inc. All Rights Reserved. */
#ifndef _DEBUG_CORE_H_#define _DEBUG_CORE_H_/* * These are the private implementation headers between the kernel * debugger core and the debugger front end code. */
/* kernel debug core data structures */struct kgdb_state { int ex_vector; int signo; int err_code; int cpu; int pass_exception; unsigned long thr_query; unsigned long threadid; long kgdb_usethreadid; struct pt_regs *linux_regs; atomic_t *send_ready;};
/* Exception state values */#define DCPU_WANT_MASTER 0x1 /* Waiting to become a master kgdb cpu */#define DCPU_NEXT_MASTER 0x2 /* Transition from one master cpu to another */#define DCPU_IS_SLAVE 0x4 /* Slave cpu enter exception */#define DCPU_WANT_BT 0x8 /* Slave cpu should backtrace then clear flag */
struct debuggerinfo_struct { void *debuggerinfo; struct task_struct *task; int exception_state; int ret_state; int irq_depth; int enter_kgdb; bool rounding_up;};
extern struct debuggerinfo_struct kgdb_info[];
/* kernel debug core break point routines */extern int dbg_remove_all_break(void);extern int dbg_set_sw_break(unsigned long addr);extern int dbg_remove_sw_break(unsigned long addr);extern int dbg_activate_sw_breakpoints(void);extern int dbg_deactivate_sw_breakpoints(void);
/* polled character access to i/o module */extern int dbg_io_get_char(void);
/* stub return value for switching between the gdbstub and kdb */#define DBG_PASS_EVENT -12345/* Switch from one cpu to another */#define DBG_SWITCH_CPU_EVENT -123456extern int dbg_switch_cpu;
/* gdbstub interface functions */extern int gdb_serial_stub(struct kgdb_state *ks);extern void gdbstub_msg_write(const char *s, int len);
/* gdbstub functions used for kdb <-> gdbstub transition */extern int gdbstub_state(struct kgdb_state *ks, char *cmd);extern int dbg_kdb_mode;
#ifdef CONFIG_KGDB_KDBextern int kdb_stub(struct kgdb_state *ks);extern int kdb_parse(const char *cmdstr);extern int kdb_common_init_state(struct kgdb_state *ks);extern int kdb_common_deinit_state(void);extern void kdb_dump_stack_on_cpu(int cpu);#else /* ! CONFIG_KGDB_KDB */static inline int kdb_stub(struct kgdb_state *ks){ return DBG_PASS_EVENT;}#endif /* CONFIG_KGDB_KDB */
#endif /* _DEBUG_CORE_H_ */