From: Dave Martin <Dave.Martin@arm.com>
To: linux-kernel@vger.kernel.org
Cc: linux-arch@vger.kernel.org, Kees Cook <keescook@chromium.org>,
Thomas Gleixner <tglx@linutronix.de>,
Jann Horn <jannh@google.com>, "H.J. Lu" <hjl.tools@gmail.com>,
Eugene Syromiatnikov <esyr@redhat.com>,
Florian Weimer <fweimer@redhat.com>,
Yu-cheng Yu <yu-cheng.yu@intel.com>,
Peter Zijlstra <peterz@infradead.org>
Subject: [RFC PATCH 1/2] ELF: UAPI and Kconfig additions for ELF program properties
Date: Tue, 20 Aug 2019 10:57:42 +0100 [thread overview]
Message-ID: <1566295063-7387-2-git-send-email-Dave.Martin@arm.com> (raw)
In-Reply-To: <1566295063-7387-1-git-send-email-Dave.Martin@arm.com>
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
next prev parent reply other threads:[~2019-08-20 9:58 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-08-20 9:57 [RFC PATCH 0/2] ELF: Alternate program property parser Dave Martin
2019-08-20 9:57 ` Dave Martin [this message]
2019-08-20 9:57 ` [RFC PATCH 2/2] ELF: Add ELF program property parsing support Dave Martin
2019-08-20 21:40 ` Yu-cheng Yu
2019-08-21 9:20 ` Dave Martin
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