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authorDave Martin <Dave.Martin@arm.com>2020-03-16 16:50:44 +0000
committerCatalin Marinas <catalin.marinas@arm.com>2020-03-16 17:19:48 +0000
commit00e19ceec80b03a43f626f891fcc53e57919f1b3 (patch)
tree08bb27b79c08e883803f36eae038ca2c28dc7aec /fs/compat_binfmt_elf.c
parentdb751e309ff05461a0c8e114b1238d7a69cc1f18 (diff)
ELF: Add ELF program property parsing support
ELF program properties will be needed for detecting whether to enable optional architecture or ABI features for a new ELF process. For now, there are no generic properties that we care about, so do nothing unless CONFIG_ARCH_USE_GNU_PROPERTY=y. Otherwise, the presence of properties using the PT_PROGRAM_PROPERTY phdrs entry (if any), and notify each property to the arch code. For now, the added code is not used. Signed-off-by: Mark Brown <broonie@kernel.org> Signed-off-by: Dave Martin <Dave.Martin@arm.com> Reviewed-by: Kees Cook <keescook@chromium.org> Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Diffstat (limited to 'fs/compat_binfmt_elf.c')
-rw-r--r--fs/compat_binfmt_elf.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/fs/compat_binfmt_elf.c b/fs/compat_binfmt_elf.c
index aaad4ca1217e..13a087bc816b 100644
--- a/fs/compat_binfmt_elf.c
+++ b/fs/compat_binfmt_elf.c
@@ -17,6 +17,8 @@
#include <linux/elfcore-compat.h>
#include <linux/time.h>
+#define ELF_COMPAT 1
+
/*
* Rename the basic ELF layout types to refer to the 32-bit class of files.
*/
@@ -28,11 +30,13 @@
#undef elf_shdr
#undef elf_note
#undef elf_addr_t
+#undef ELF_GNU_PROPERTY_ALIGN
#define elfhdr elf32_hdr
#define elf_phdr elf32_phdr
#define elf_shdr elf32_shdr
#define elf_note elf32_note
#define elf_addr_t Elf32_Addr
+#define ELF_GNU_PROPERTY_ALIGN ELF32_GNU_PROPERTY_ALIGN
/*
* Some data types as stored in coredump.