arm64: ELF: add support for big-endian executables

[firefly-linux-kernel-4.4.55.git] / arch / arm64 / include / asm / elf.h

diff --git a/arch/arm64/include/asm/elf.h b/arch/arm64/include/asm/elf.h
index 07fea290d7c15b211e881856bb48d943a80c337a..aa57b15c9e86311d3cdf136f809dbb22205e3037 100644 (file)
--- a/arch/arm64/include/asm/elf.h
+++ b/arch/arm64/include/asm/elf.h
@@ -26,7 +26,10 @@
 
 typedef unsigned long elf_greg_t;
 
-#define ELF_NGREG (sizeof (struct pt_regs) / sizeof(elf_greg_t))
+#define ELF_NGREG (sizeof(struct user_pt_regs) / sizeof(elf_greg_t))
+#define ELF_CORE_COPY_REGS(dest, regs) \
+       *(struct user_pt_regs *)&(dest) = (regs)->user_regs;
+
 typedef elf_greg_t elf_gregset_t[ELF_NGREG];
 typedef struct user_fpsimd_state elf_fpregset_t;
 
@@ -89,11 +92,24 @@ typedef struct user_fpsimd_state elf_fpregset_t;
  * These are used to set parameters in the core dumps.
  */
 #define ELF_CLASS      ELFCLASS64
+#ifdef __AARCH64EB__
+#define ELF_DATA       ELFDATA2MSB
+#else
 #define ELF_DATA       ELFDATA2LSB
+#endif
 #define ELF_ARCH       EM_AARCH64
 
+/*
+ * This yields a string that ld.so will use to load implementation
+ * specific libraries for optimization.  This is more specific in
+ * intent than poking at uname or /proc/cpuinfo.
+ */
 #define ELF_PLATFORM_SIZE      16
+#ifdef __AARCH64EB__
+#define ELF_PLATFORM           ("aarch64_be")
+#else
 #define ELF_PLATFORM           ("aarch64")
+#endif
 
 /*
  * This is used to ensure we don't load something for the wrong architecture.