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linux-next/arch/powerpc/xmon
Vaibhav Jain 1ff3b40401 powerpc/xmon: Clear all breakpoints when xmon is disabled via debugfs
Presently when xmon is disabled by debugfs any existing
instruction/data-access breakpoints set are not disabled. This may
lead to kernel oops when those breakpoints are hit as the necessary
debugger hooks aren't installed.

Hence this patch introduces a new function named clear_all_bpt() which
is called when xmon is disabled via debugfs. The function will
unpatch/clear all the trap and ciabr/dab based breakpoints.

Signed-off-by: Vaibhav Jain <vaibhav@linux.vnet.ibm.com>
Reviewed-by: Balbir Singh <bsingharora@gmail.com>
[mpe: Fix build break when CONFIG_DEBUG_FS=n]
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2018-03-13 15:50:05 +11:00
..
ansidecl.h powerpc: Merge xmon 2005-10-28 22:53:37 +10:00
dis-asm.h [POWERPC] Make xmon disassembly optional 2006-12-04 20:40:32 +11:00
Makefile License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
nonstdio.c powerpc/xmon: Paged output for paca display 2015-10-15 20:32:01 +11:00
nonstdio.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
ppc-dis.c powerpc/xmon: Do not compute/store the major opcode 2018-01-21 23:37:43 +11:00
ppc-opc.c powerpc updates for 4.11 part 2 2017-03-01 10:10:16 -08:00
ppc.h powerpc/xmon: Enable disassembly files (compilation changes) 2017-02-15 20:02:42 +11:00
spr_access.S License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
spu-dis.c [PATCH] arch/powerpc trivial annotations 2007-02-09 09:14:06 -08:00
spu-insns.h [POWERPC] Import spu disassembly code into xmon 2006-12-04 20:40:29 +11:00
spu-opc.c bug.h: add include of it to various implicit C users 2012-02-29 17:15:08 -05:00
spu.h [POWERPC] Import spu disassembly code into xmon 2006-12-04 20:40:29 +11:00
xmon.c powerpc/xmon: Clear all breakpoints when xmon is disabled via debugfs 2018-03-13 15:50:05 +11:00