diff options
author | Yunhong Jiang <yunhong.jiang@intel.com> | 2015-08-04 12:17:53 -0700 |
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committer | Yunhong Jiang <yunhong.jiang@intel.com> | 2015-08-04 15:44:42 -0700 |
commit | 9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00 (patch) | |
tree | 1c9cafbcd35f783a87880a10f85d1a060db1a563 /kernel/arch/sparc/include/asm/kdebug_32.h | |
parent | 98260f3884f4a202f9ca5eabed40b1354c489b29 (diff) |
Add the rt linux 4.1.3-rt3 as base
Import the rt linux 4.1.3-rt3 as OPNFV kvm base.
It's from git://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-rt-devel.git linux-4.1.y-rt and
the base is:
commit 0917f823c59692d751951bf5ea699a2d1e2f26a2
Author: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Date: Sat Jul 25 12:13:34 2015 +0200
Prepare v4.1.3-rt3
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
We lose all the git history this way and it's not good. We
should apply another opnfv project repo in future.
Change-Id: I87543d81c9df70d99c5001fbdf646b202c19f423
Signed-off-by: Yunhong Jiang <yunhong.jiang@intel.com>
Diffstat (limited to 'kernel/arch/sparc/include/asm/kdebug_32.h')
-rw-r--r-- | kernel/arch/sparc/include/asm/kdebug_32.h | 74 |
1 files changed, 74 insertions, 0 deletions
diff --git a/kernel/arch/sparc/include/asm/kdebug_32.h b/kernel/arch/sparc/include/asm/kdebug_32.h new file mode 100644 index 000000000..1d0b24022 --- /dev/null +++ b/kernel/arch/sparc/include/asm/kdebug_32.h @@ -0,0 +1,74 @@ +/* + * 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) */ |