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: Roland McGrath <[email protected]>
---
arch/powerpc/kernel/ptrace.c | 2 +-
include/linux/elf.h | 1 +
2 files changed, 2 insertions(+), 1 deletions(-)
diff --git a/arch/powerpc/kernel/ptrace.c b/arch/powerpc/kernel/ptrace.c
index e961e10..0231e7d 100644
--- a/arch/powerpc/kernel/ptrace.c
+++ b/arch/powerpc/kernel/ptrace.c
@@ -642,7 +642,7 @@ 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
},
diff --git a/include/linux/elf.h b/include/linux/elf.h
index 576e83b..ba268b2 100644
--- a/include/linux/elf.h
+++ b/include/linux/elf.h
@@ -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 */
/* Note header in a PT_NOTE section */
--
1.5.3.6
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