Файловый менеджер - Редактировать - /usr/src/linux-headers-5.4.0-200/arch/sparc/include/asm/kdebug_32.h
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/* SPDX-License-Identifier: GPL-2.0 */ /* * kdebug.h: Defines and definitions for debugging the Linux kernel * under various kernel debuggers. * * Copyright (C) 1995 David S. Miller (davem@caip.rutgers.edu) */ #ifndef _SPARC_KDEBUG_H #define _SPARC_KDEBUG_H #include <asm/openprom.h> #include <asm/vaddrs.h> /* Breakpoints are enter through trap table entry 126. So in sparc assembly * if you want to drop into the debugger you do: * * t DEBUG_BP_TRAP */ #define DEBUG_BP_TRAP 126 #ifndef __ASSEMBLY__ /* The debug vector is passed in %o1 at boot time. It is a pointer to * a structure in the debuggers address space. Here is its format. */ typedef unsigned int (*debugger_funct)(void); struct kernel_debug { /* First the entry point into the debugger. You jump here * to give control over to the debugger. */ unsigned long kdebug_entry; unsigned long kdebug_trapme; /* Figure out later... */ /* The following is the number of pages that the debugger has * taken from to total pool. */ unsigned long *kdebug_stolen_pages; /* Ok, after you remap yourself and/or change the trap table * from what you were left with at boot time you have to call * this synchronization function so the debugger can check out * what you have done. */ debugger_funct teach_debugger; }; /* I think that is it... */ extern struct kernel_debug *linux_dbvec; /* Use this macro in C-code to enter the debugger. */ static inline void sp_enter_debugger(void) { __asm__ __volatile__("jmpl %0, %%o7\n\t" "nop\n\t" : : "r" (linux_dbvec) : "o7", "memory"); } #define SP_ENTER_DEBUGGER do { \ if((linux_dbvec!=0) && ((*(short *)linux_dbvec)!=-1)) \ sp_enter_debugger(); \ } while(0) enum die_val { DIE_UNUSED, DIE_OOPS, }; #endif /* !(__ASSEMBLY__) */ /* Some nice offset defines for assembler code. */ #define KDEBUG_ENTRY_OFF 0x0 #define KDEBUG_DUNNO_OFF 0x4 #define KDEBUG_DUNNO2_OFF 0x8 #define KDEBUG_TEACH_OFF 0xc #endif /* !(_SPARC_KDEBUG_H) */
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