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Commit 24f1a849 authored by Roland McGrath's avatar Roland McGrath Committed by Paul Mackerras
Browse files

[POWERPC] Add SPE registers to core dumps 



This makes the SPE register data appear in ELF core dumps, using the
new n_type value NT_PPC_SPE (0x101).  This new note type is not used
by any consumers of core files yet, but support can be added.  I don't
even have any hardware with SPE capabilities, so I've never seen such
a note.  But this demonstrates how simple it is to export register
information in core dumps when the user_regset style is used for the
low-level code.

Signed-off-by: default avatarRoland McGrath <roland@redhat.com>
Signed-off-by: default avatarPaul Mackerras <paulus@samba.org>
parent 0deef2c7

arch/powerpc/kernel/ptrace.c

+1 −1
Original line number Diff line number Diff line
@@ -581,7 +581,7 @@ static const struct user_regset compat_regsets[] = { 
#endif

#ifdef CONFIG_SPE

	[REGSET_SPE] = {

		.n = 35,

		.core_note_type = NT_PPC_SPE, .n = 35,

		.size = sizeof(u32), .align = sizeof(u32),

		.active = evr_active, .get = evr_get, .set = evr_set

	},

include/linux/elf.h

+1 −0
Original line number Diff line number Diff line
@@ -355,6 +355,7 @@ typedef struct elf64_shdr { 
#define NT_AUXV		6

#define NT_PRXFPREG     0x46e62b7f      /* copied from gdb5.1/include/elf/common.h */

#define NT_PPC_VMX	0x100		/* PowerPC Altivec/VMX registers */

#define NT_PPC_SPE	0x101		/* PowerPC SPE/EVR registers */

#define NT_386_TLS	0x200		/* i386 TLS slots (struct user_desc) */