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authorDwayne Grant McConnell <decimal@us.ibm.com>2006-11-23 00:46:37 +0100
committerPaul Mackerras <paulus@samba.org>2006-12-04 20:40:19 +1100
commitbf1ab978be2318c5a564de9aa0f1a217b44170d4 (patch)
tree518a971f12a65c8a3ee54d75b6a8c33b68f54664 /include/linux/elf.h
parent9309180f11f0107c9858a61a1ac2b04518a91080 (diff)
downloadop-kernel-dev-bf1ab978be2318c5a564de9aa0f1a217b44170d4.zip
op-kernel-dev-bf1ab978be2318c5a564de9aa0f1a217b44170d4.tar.gz
[POWERPC] coredump: Add SPU elf notes to coredump.
This patch adds SPU elf notes to the coredump. It creates a separate note for each of /regs, /fpcr, /lslr, /decr, /decr_status, /mem, /signal1, /signal1_type, /signal2, /signal2_type, /event_mask, /event_status, /mbox_info, /ibox_info, /wbox_info, /dma_info, /proxydma_info, /object-id. A new macro, ARCH_HAVE_EXTRA_NOTES, was created for architectures to specify they have extra elf core notes. A new macro, ELF_CORE_EXTRA_NOTES_SIZE, was created so the size of the additional notes could be calculated and added to the notes phdr entry. A new macro, ELF_CORE_WRITE_EXTRA_NOTES, was created so the new notes would be written after the existing notes. The SPU coredump code resides in spufs. Stub functions are provided in the kernel which are hooked into the spufs code which does the actual work via register_arch_coredump_calls(). A new set of __spufs_<file>_read/get() functions was provided to allow the coredump code to read from the spufs files without having to lock the SPU context for each file read from. Cc: <linux-arch@vger.kernel.org> Signed-off-by: Dwayne Grant McConnell <decimal@us.ibm.com> Signed-off-by: Arnd Bergmann <arnd.bergmann@de.ibm.com>
Diffstat (limited to 'include/linux/elf.h')
-rw-r--r--include/linux/elf.h7
1 files changed, 7 insertions, 0 deletions
diff --git a/include/linux/elf.h b/include/linux/elf.h
index b70d1d2..743d5c8 100644
--- a/include/linux/elf.h
+++ b/include/linux/elf.h
@@ -368,5 +368,12 @@ extern Elf64_Dyn _DYNAMIC [];
#endif
+#ifndef ARCH_HAVE_EXTRA_ELF_NOTES
+static inline int arch_notes_size(void) { return 0; }
+static inline void arch_write_notes(struct file *file) { }
+
+#define ELF_CORE_EXTRA_NOTES_SIZE arch_notes_size()
+#define ELF_CORE_WRITE_EXTRA_NOTES arch_write_notes(file)
+#endif /* ARCH_HAVE_EXTRA_ELF_NOTES */
#endif /* _LINUX_ELF_H */
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