linux-stable/arch/powerpc/xmon/xmon_bpts.S

/* SPDX-License-Identifier: GPL-2.0 */
#include <asm/ppc_asm.h>
#include <asm/asm-compat.h>
#include <asm/asm-offsets.h>
#include "xmon_bpts.h"

/* Prefixed instructions can not cross 64 byte boundaries */
.align 6
.global bpt_table
bpt_table:
	.space NBPTS * BPT_SIZE
powerpc/xmon: Move breakpoints to text section The instructions for xmon's breakpoint are stored bpt_table[] which is in the data section. This is problematic as the data section may be marked as no execute. Move bpt_table[] to the text section. Signed-off-by: Jordan Niethe <jniethe5@gmail.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/20200506034050.24806-4-jniethe5@gmail.com 2020-05-06 03:40:23 +00:00			`/* SPDX-License-Identifier: GPL-2.0 */`
			`#include <asm/ppc_asm.h>`
			`#include <asm/asm-compat.h>`
			`#include <asm/asm-offsets.h>`
			`#include "xmon_bpts.h"`

powerpc: Add prefixed instructions to instruction data type For powerpc64, redefine the ppc_inst type so both word and prefixed instructions can be represented. On powerpc32 the type will remain the same. Update places which had assumed instructions to be 4 bytes long. Signed-off-by: Jordan Niethe <jniethe5@gmail.com> Reviewed-by: Alistair Popple <alistair@popple.id.au> [mpe: Rework the get_user_inst() macros to be parameterised, and don't assign to the dest if an error occurred. Use CONFIG_PPC64 not __powerpc64__ in a few places. Address other comments from Christophe. Fix some sparse complaints.] Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/20200506034050.24806-24-jniethe5@gmail.com 2020-05-15 02:12:55 +00:00			`/* Prefixed instructions can not cross 64 byte boundaries */`
			`.align 6`
powerpc/xmon: Move breakpoints to text section The instructions for xmon's breakpoint are stored bpt_table[] which is in the data section. This is problematic as the data section may be marked as no execute. Move bpt_table[] to the text section. Signed-off-by: Jordan Niethe <jniethe5@gmail.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/20200506034050.24806-4-jniethe5@gmail.com 2020-05-06 03:40:23 +00:00			`.global bpt_table`
			`bpt_table:`
			`.space NBPTS * BPT_SIZE`