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Subject[RFC PATCH 1/2] ELF: UAPI and Kconfig additions for ELF program properties
Date
Pull the basic ELF definitions from Yu-Cheng Yu's series.

Signed-off-by: Yu-cheng Yu <yu-cheng.yu@intel.com>
Signed-off-by: Dave Martin <Dave.Martin@arm.com>

---

This patch should be merged with the next patch.

I kept it seprate for now to document where this code came from.
---
fs/Kconfig.binfmt | 3 +++
include/uapi/linux/elf.h | 7 +++++++
2 files changed, 10 insertions(+)

diff --git a/fs/Kconfig.binfmt b/fs/Kconfig.binfmt
index 62dc4f5..d2cfe07 100644
--- a/fs/Kconfig.binfmt
+++ b/fs/Kconfig.binfmt
@@ -36,6 +36,9 @@ config COMPAT_BINFMT_ELF
config ARCH_BINFMT_ELF_STATE
bool

+config ARCH_USE_GNU_PROPERTY
+ bool
+
config BINFMT_ELF_FDPIC
bool "Kernel support for FDPIC ELF binaries"
default y if !BINFMT_ELF
diff --git a/include/uapi/linux/elf.h b/include/uapi/linux/elf.h
index 34c02e4..a3eaad9 100644
--- a/include/uapi/linux/elf.h
+++ b/include/uapi/linux/elf.h
@@ -36,6 +36,7 @@ typedef __s64 Elf64_Sxword;
#define PT_LOPROC 0x70000000
#define PT_HIPROC 0x7fffffff
#define PT_GNU_EH_FRAME 0x6474e550
+#define PT_GNU_PROPERTY 0x6474e553

#define PT_GNU_STACK (PT_LOOS + 0x474e551)

@@ -443,4 +444,10 @@ typedef struct elf64_note {
Elf64_Word n_type; /* Content type */
} Elf64_Nhdr;

+/* NT_GNU_PROPERTY_TYPE_0 header */
+struct gnu_property {
+ __u32 pr_type;
+ __u32 pr_datasz;
+};
+
#endif /* _UAPI_LINUX_ELF_H */
--
2.1.4
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